Observing Children

Three observations of child development. This is an assignment consisting of three observations pertaining to a child’s development in three core areas, specifically, a young person’s social, emotional and physical maturity. Firstly it contemplates the social development of a four year old boy in an educational nursery setting, via an observation utilizing the narrative technique. Secondly the intellectual (cognitive) development of a five year old girl is reflected upon in a home setting, using the sampling approach.Finally the physical maturity of a four year old boy is considered in a home setting, using the checklist method. These individual records highlight areas that are deemed to be pertinent to the applicable study, drawing conclusions and evaluating how the findings are relevant. These inferences are supported by appropriate theory, before conferring recommendations correlating to the observation, considering future needs/requirements. Observation one: Social development. Name of observer: Lee Bogan. Name of child: O. Age of child: Four years, two months.Gender: Male. Time observation started: 9. 15. Time observation finished: 9. 45 Method: Narrative. Number of children: 5. Number of Adults: 2. Date: October 2009. Background: Child O is an only child from a single parent family and spends a lot of time with his mother and grandmother. He also suffers from a disorder which is supposed to infringe upon his social development. Aim: To observe a child aged four years two months playing outdoors in a nursery with other children, concentrating on and highlighting the preschooler’s social development.Objective: To assess O’s confidence in concordance with his ability to develop friendships and interact with peers. Setting: Educational nursery for children aged between three and four. There are places for thirty children in a session, six of which are allocated to resource children who may or may not come from the local area. Brief description: O is outside playing with plastic crates and planks of wood. There are other children in the same vicinity also playing with the materials. Description: O is making a structure comprising of plastic crates and wooden planks.He asks another child for ‘a hand’. This request is not acted upon. It becomes apparent that the edifice being constructed is a bridge when O discusses which way the bridge should face with the supervising adult, who offers him guidance and advice. O then exclaims he’ll ‘move this’, picking up a plastic crate, followed by a plank of wood, creating a new fraction of the bridge. This is achieved devoid of any assistance from other children and with a small amount of structured direction from the attentive adult. Subsequently O directs another child who is holding a plank of wood, asserting ‘put it here’.O then proceeds to move a plastic crate and wooden plank in order to adjoin it to a nearby slide that an other child is utilizing. He reiterates ‘give me a hand somebody, I need a hand’. This request is again to no avail. Hereafter O manipulates a cart/pram to reposition a plastic crate which he complements with a wooden plank, resulting in the formation of an extension to the bridge. Other children meanwhile are exploiting the sections of the bridge that have already been assembled. O gives the cart/ pram to another child. He is then asked to ring the bell to signify that it is time to tidy up.O smiles and walks over to where the bell is located. He elevates and rings the bell, smiling. The supervising adult recompenses this action/behaviour with the words ‘well done’. Evaluation: O appears confident around his peers. He explicitly asks for assistance moving building materials on numerous occasions demonstrating that he is not adverse to entering into communication and initiating social interaction with others. He fundamentally invites other children to inter act with him, though the other children appear to either not have heard the requests made or chose to ignore them.Given the close proximity of the other children, the latter scenario appears to be most likely. That ascertained, it could be construed that child O was in fact a socially ‘neglected’ child amongst his peer group (Coie, Dodge & Coppotelli, 1982). This research describes socially ‘neglected’ children as children who are neither ‘a liked nor disliked companion and appear almost invisible to their peers’. This implies that ‘neglected’ children are not being rejected by peers as they are not disliked; they are not recognised as being either socially favourable or unfavourable.Coie & Dodge (1983) actually stipulate that children who are disliked fall into the category of ‘rejected’ children and furthermore their research avers that it is far more advantageous to be ‘neglected’ as opposed to ‘r ejected’. This is asserted to be accurate as Cassidy & Asher (1992) and Crick & Ladd (1993) suggest that ‘neglectees do not feel as lonely as rejectees’. Moreover, ‘neglected’ children are far more likely to ‘attain a more favourable sociometric status’ in comparison to ‘rejected’ children, should they enrol into a new play group (Coie & Dodge, 1983).O also appears to be confident when talking and interacting with the adult supervising the play area. When deciding which direction the bridge should rotate towards O listens to the adult and uses their advice to deduce an appropriate conclusion to the immediate problem, declaring, ‘I’ll move this’. It can be intimated from this that O is confident in his own decision making and not afraid to act upon his own rationale of situations. He interacts well and shows purpose and persistence in his behaviour towards the task being undertaken. The way O interacts wit h other children during his play is perplexing.For the majority of the time he is engaged in his own solitary play, also referred to as ‘non-social activity’ (Parten, 1932). This would infer that child O was not succeeding in or attempting to develop friendships with others, however, it could be insinuated that this is not the case. Although he does spend a large majority of his time in what Parten (1932) depicts as either ‘non-social’ (solitary play) or ‘parallel’ (when children play side by side but interact little and do not try to influence the behaviour of others) play, O does display behaviour in the most advanced phase of Parten’s (1932) stages of play; ‘ co-operative play’. Co-operative play’ incorporates children collaborating to achieve shared goals (Parten, 1932). O asks for assistance on numerous occasions with the building of the bridge, as highlighted earlier, effectively inviting the other children to w ork with him to build the bridge. The other children appear to ignore him, isolating him from the rest of the group, but it could be reasoned that this is not a reflection of O’s ability to initiate interaction and form friendships but rather a reflection of the way the rest of the group appear to perceive and ignore him.The same can be derived from the behaviour O displays when he gives the pram/cart to another child (sharing toys) and gets no feedback from the beneficiary by way of acknowledgment/thank you, or by the gesture of moving the bridge over to the slide; this could be perceived as an attempt to allow the other children to interact and socialise with him but they instead choose to ignore him, nevertheless exploiting and utilizing the apparatus he has just made accessible to them. O also gives direction to another child in relation to where the plank of wood they are holding should be positioned.This again can be identified to be the more advanced stage of play in f our year olds, according to Parten (1932), as it does not fall into the category of ‘non-social’ or ‘parallel play’ since it incorporates other children. Conclusion: O does display behaviour associated with the social developmental norms for four year olds stipulated by Riddall-Leech (2008) in demonstrating that he is ‘confident’ showing ‘purpose and persistence’ as well as showing willingness to ‘develop friendships with peers’.He also shows signs of ‘co-operative play’ (Parten, 1932). However, it is apparent that his peers are not receptive to his attempts at initiating social interaction. From the information gathered it could be argued that this is due to the other children ‘neglecting’ (Coie & Dodge, 1983) O in favour of other more auspicious companions.The fact that O also mainly interacts with adults outside of the nursery setting as he is an only child from a single parent family, who spends most of his time with his mother and grandmother, may have an impact on the way he interacts and the language he uses. This may be ‘alien’ to other children who regularly socialise with both adults and children alike, isolating O from the other children, who could be unsure of how to socialise with him.Recommendations: It could be deemed beneficial for O to socialise with another group of children as Coie & Dodge (1983) express that children ‘neglected’ by their companions can gain an improved ‘sociometric’ status and increased social acceptance within a group of new peers. This would not necessarily mean O leaving the nursery; on the contrary, this could be achieved via involvement in a club/social activity outside of the nursery. Some kind of social interaction with children outside of the nursery in any situation could be perceived to be beneficial in helping O’s social development.

Ultrasonic Speed Measurement

â€Å"ULTRA SONIC SPEED MEASUREMENT DEVICE† A PROJECT REPORT Submitted in partial fulfillment Of requirements for award of the degree Of BACHELOR OF TECHNOLOGY In ELECTRONICS & COMMUNICATION ENGINEERING By: Nimisha Sharma Nishant Tyagi Gaurav Sharma [pic] Department of Electronics & communication engineering Radha Govind Engineering College Meerut, U. P 2009-2010 ULTRA SONIC SPEED MEASUREMENT DEVICE By: Nimisha sharma Nishant tyagi Gaurav sharma [pic] Department of Electronics & communication engineering Radha govind Engineering College Meerut, U. P 2009-2010 ACKNOWLEDGEMENT Before we get in to thick of things we would like to add a few heartfelt words for the people who were the part of the project in numerous ways. People who gave unending support right from the stage the idea were conceived. In particular, we wish to thank Mr. P. K Singh Head of the Department, Electronics & Communication and Mr. Abhishek Singh lecturer, Electronics & Communication Department for providing this opportunity to us. After doing this project we can confidently say that this experience would not only enriched us with technical knowledge but also has unparsed the maturity of thought and vision . he attributes required being a successful professional. Gaurav Sharma Nimisha Sharma Nishant Tyagi CANDIDATE’S DECLARATION We, here by certify that the work which is being presented in the project report entitled Ultra sonic speed measurement device in partial fulfillment of the requirement for the award of degree of BACHELOR OF TECHNOLOGY in Electronics & Communication Engin eering submitted in the department of Electronics & Communication Engineering of the Institute, is an authentic record of our own work carried out during final year of B. tech degree under the supervision of Mr. P. K Singh Head of the Department, Electronics & Communication and Mr. Abhishek Singh lecturer, Department Electronics & Communication Project group:- Gaurav Sharma (0606931023) Nimisha Sharma (0606931045) Nishant Tyagi (0606931047) This is to certify that the above statement made by the above candidates is correct to the best of my knowledge. Mr. P. K Singh Mr. Abhishek Singh (H. O. D) (Lecturer) Dept. of Electronics & Comm. Dept. of Electronics & Comm. R. G. E. C R. G. E. C Meerut, U. P Meerut, U. P Date†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Date†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. Place†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Place†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ TABLE OF CONTENTS 1. INTRODUCTION†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ a. MEANING OF THE WORD PROJECT†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ . ABSTRACT †¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ c. PARTS OF SPEED MEASUREMENT DEVICE†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢ € ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 2. GENERAL DISCRIPTION AND FEATURES OF MICRO CONTROLLER †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 3. HARDWARE DISCRIPTION†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ a. VOLTAGE REGULATOR LM 7805†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. b. COMPONENTS †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. 4. PCB LAYOUT †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ a. STEPS FOR MAKING PCB †¦Ã¢â‚¬ ¦Ã¢â‚ ¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. †¦ b. CIRCUIT LAY OUT †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 5. SOFTWARE PROGRAM †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 6. TESTING†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 7. TROUBLESHOOTING †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 8. CONCLUSION†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 9. REFERENCES†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ 10. APPENDIX†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. INTRODUCTION MEANING OF PROJECT The project gives the significance of the following field of engineering – P-signifies the phenomenon of planning which deals with symbolic nation and proper arrangement of sense and suggestion receptivity accordingly to the needs R-it is associate with the word resources wh ich guides to promote planning . OJ-this letter signifies the overhead expenses in unestimated expenses that may occur in the manufacture design or layout of the project. E- signifies the word engineering. C- signifies the convey about phenomenon of construction low cost. T-the word T stands for technique. unless there is a technique; it is impossible to complete the project . The conclusion thus arrived is that project is a systematic consideration discussed and proposal in a particular subject . we can say that project includes complete requirement of mechanism , tools , application and needs. It considers the circuit diagram and various operational performances in sequence and data about the instrument and in the last we can say about the project profit loss. CERTIFICATE This is to certify that Mr. GAURAV SHARMA, student of B. Tech (Electronics & communication Engineering) Final year from Radha Govind Engineering College has successfully completed his project â€Å"ULTRA SPEED MEASUREMENT DEVICE†. During the project period he was working under the guidance of Mr. Abhishek Singh (lecturer, Electronics & Communication Engineering Department). His performance during the project has been Excellent. We wish him all the best for his future. Mr. P. K Singh Mr. Abhishek Singh (H. O. D) (Lecturer) Electronics & Comm. Dept. Electronics & Comm. Dept. R. G. E. C R. G. E. C Meerut, (U. P) Meerut, (U. P) CERTIFICATE This is to certify that Ms. NIMISHA SHARMA, student of B. Tech (Electronics & communication Engineering) Final year from Radha Govind Engineering College has successfully completed her project â€Å"ULTRA SPEED MEASUREMENT DEVICE†. During the project period she was working under the guidance of Mr. Abhishek Singh (lecturer, Electronics & Communication Engineering Department). Her performance during the project has been Excellent. We wish her all the best for her future. Mr. P. K Singh Mr. Abhishek Singh (H. O. D) (Lecturer) Electronics & Comm. Dept. Electronics & Comm. Dept. R. G. E. C R. G. E. C Meerut, (U. P) Meerut, (U. P) CERTIFICATE This is to certify that Mr. NISHANT TYAGI, student of B. Tech (Electronics & communication Engineering) Final year from Radha Govind Engineering College has successfully completed his project â€Å"ULTRA SPEED MEASUREMENT DEVICE†. During the project period he was working under the guidance of Mr. Abhishek Singh (lecturer, Electronics & Communication Engineering Department). His performance during the project has been Excellent. We wish him all the best for his future. Mr. P. K Singh Mr. Abhishek Singh (H. O. D) (Lecturer) Electronics & Comm. Dept. Electronics & Comm. Dept. R. G. E. C R. G. E. C Meerut, (U. P) Meerut, (U. P) CHAPTER 1 ABOUT OUR PROJECT Our project the ultrasonic speed measurement device is used to measure speed of a vehicle moving in front of it using ultrasonic waves. The concept of using ultrasonic waves instead of any other communicating tools as infrared and RF is its high preciseness and very less interference by the surrounding. There can various methods that can be opted to design this instrument such as Doppler Effect etc. but we have used the concept of distance measurement at a regular interval. The pulse is being transmitted at a regular interval and the corresponding distance is measured of the two pulses. The difference in the distances is observed and is then divided by the time duration between the two pulses. As result the corresponding speed is obtained. The range of this device is directly dependent on the performance of the transmitter and the receiver. Higher the transmitting and receiving frequency better will be its range. Mathematical analysis(hypothetical) The duration of pulse is 5 milliseconds. The distance for the signal1 be say 3 cm. The distance for the signal2 be say 2. 95 cm. Difference of distances is (3-2. 95) = . 05 cm. Speed = distance/ time Speed = . 05/5 = 10 meters/sec ADVANTAGE AND DISADVANTAGE The major advantages of our project are One of the major advantages our project is its multi utility. It can be used as 1 Speed measurement 2 Distance measurement 3 Car parking controller The other advantage of this project is its cost. Its cost is less than 1000 INR. The precise result is one more advantage of our project. Limitation of our project. The major disadvantage of our project is its range. Due to the use of low frequency transmitter and receiver. High frequency transmitter and receiver give higher range of upto 10 to 15 mtrs Block diagram [pic] Circuit diagram Working In our project Ultrasonic Speed Measurement Device we are going to measure the speed of a moving vehicle. For this we are using the Ultrasonic Sensors. We first generate a 40 KHz signal by taking the time period of 25 microseconds. Then we actually generate the pulse burst with a delay of 5 milliseconds. For this we programmed the microcontroller. We send the pulse by pressing the switch that is connected to the pin no. 1 of the microcontroller. At this moment the distance of the object from the device is measured and is stored in the microcontroller. Then after the delay of 5 milliseconds the second pulse hits the moving object. Again the distance of the object is measured and is stored in the microcontroller. Then we can easily find out the difference in the distance by simply subtracting these two distances. Now we have the distance and also the time. Therefore by the formula speed = distance / time we can find out the speed of the moving object. In the transmitter part we have LM311which is a voltage comparator and is used here as the precision squarer whose pin no. 2 is connected to the pin no. 2 of the microcontroller. Then at pin no. 7 and pin no. 8 the ultrasonic transmitter is placed. In the receiver part we have LM833 for amplification and 74HC14N as the Hex inverting Schmitt trigger. The pin no. 1 of 74HC14N is connected to the pin no. of LM833. The ultrasonic receiver is connected between pin no. 6 of LM833 and ground. These ultrasonic transmitter and receiver are placed close to each other so that there will be minimum noise. Why ultrasonic signal ? ‘ULTRA'-sonic is a sound wave with a frequency above the normal range of human hearing. Most humans can hear up to 16,000 He rtz. Young people can hear almost to 20,000 Hertz. Bats and mice and other small critters can hear much higher and use those sounds to ‘see' the world around them. An ultrasonic imaging device sends a signal into a medium and then listens for the reflected waves. The more receiving transducers you use to pick up the sound the better you can tell what you are ‘looking' at. Reflected waves will reach one receiver before the next based on where the reflecting object is located. Electronics are fast enough to determine the direction and distance to the reflected objects. Also the higher the frequency you broadcast the better resolution you will see. A computer is interfaced with an array of receiving tranceducers and it calculates the direction and distance that the many echos must represent and then it plots the picture of the results. The Image can be displayed or printed. In ultrasonic non destructive testing, high-frequency sound vibrations are transmitted into material by an ultrasonic transducer. The test instrument then analyzes the ultrasonic signals which are received using either a pulse-echo or through-transmission method. In the pulse-echo mode, the transmitting transducer also serves as the ultrasonic receiver and analyzes the reflected signal with respect to amplitude and time. In the through-transmission mode, the ultrasonic signal is received by a separate transducer which analyzes the amplitude loss of signal. These ultrasonic NDT methods will indicate material defects such as longitudinal and transverse cracks, inclusions and others as well as ID/OD dimensions and dimensional changes such as thickness and ovality. Components Component required 1. Ultrasonic Transmitter and Receiver 2. Resistor 3. Capacitor 4. Crystal 5. Preset 6. Switch 7. LCD 8. Power Supply 9. IC’s †¢ LM833 †¢ LM311 †¢ 74HC14N †¢ 7805 10. Micro controller †¢ AT89S52 11. Wires 12. Burst Strip 13. IC Base Specification ULTRASONIC SENSORS [pic] Selection and use of ultrasonic ceramic transducers : The purpose of this application note is to aid the user in the selection and application of the Ultrasonic ceramic transducers. The general transducer design features a piezo ceramic disc bender that is resonant at a nominal frequency of 20 – 60 KHz and radiates or receives ultrasonic energy. They are distinguished from the piezo ceramic audio transducer in that they produce sound waves above 20 KHz that are inaudible to humans and the ultrasonic energy is radiated or received in a relatively narrow beam. The â€Å"open† type ultrasonic transducer design exposes the piezo bender bonded with a metal conical cone behind a protective screen. The â€Å"enclosed† type transducer design has the piezo bender mounted directly on the underside of the top of the case which is then machined to resonant at the desired frequency. The â€Å"PT and EP† type transducer has more internal damper for minimizing â€Å"ringing†, which usually operates as a transceiver – oscillating in a short period and then switching to receiving mode. Comparative characteristics : When compared to the enclosed transducer, the open type receiver will develop more electrical output at a given sound pressure level (high sensitivity) and exhibit less reduction in output as the operating frequency deviates from normal resonant frequency (greater bandwidth). The open type transmitter will produce more output for a specific drive level (more efficient). The enclosed type transducer is designed for very dusty or outdoor applications. The face of the transducer must be kept clean and free of damage to prevent losses. The transmitter is designed to have low impedance at the resonant frequency to obtain high mechanical efficiency. The receiver is constructed to maximize the impedance at the specified anti-resonant frequency to provide high electrical efficiency. Sound propagation : In order to properly select a transducer for a given application, it is important to be aware of the principles of sound propagation. Since sound is a wave phenomenon, its propagation and directivity are related to its wavelength (? ). A typical radiation power pattern for either a generator or receiver of waves is shown in Figure 1. Due to the reciprocity of transmission and reception, the graph portrays both power radiated along a given direction (in case of wave production), and the sensitivity along a given direction (in case of wave reception). As an example of a typical situation, a transducer of 400ET250 has an effective diameter of 23 mm (1mm wall thickness) will produce a main beam (-6dB) with full width of 30 ° at a frequency of 40 KHz. For open type transducers, the beam is decided by the angular and diameter of conical cone attached on the bender inside of housing and the opening diameter so it can not be simply calculated by the diameter of the housing. The intensity of sound waves decrease with the distance from the sound source, as might be expected for any wave phenomenon. This decrease is principal a combination of two effects. The first is the inverse square law or spherical divergence in which the intensity drop 6dB per distance doubled. This rate is common to all wave phenomena regardless of frequency. The second effect causing the intensity to decrease is the absorption of the wave by the air (see figure 2). Absorption effects vary with humidity and dust content of the air and most importantly, they vary with frequency of the wave. Absorption at 20 KHz is about 0. 02dB/30 cm. It is clear that lower frequencies are better suited for long range propagation. Of course, the selection of a lower frequency will result in less directivity (for a given diameter of source of receiver). [pic] How far the transducer could reach? One of the most frequently asked questions is â€Å"How far the transducer could reach? †. This question can be answered by a simple calculation that is based on the published specifications in the Ultrasonic Ceramic Transducer Data Sheets. The basic procedure is to first determine the minimum sound pressure level developed at the front end of the receiver for a specific transmitter driving voltage and distance between the transmitter and receiver (transceiver has double distance between reflect target). This SPL must then be converted â€Å"Pa† (Pascal) or â€Å"? bar† (microbar) units. The sensitivity of the receiver must then be converted from a dB reference to an absolute mV/Pa or ? bar level resent to obtain the final output. Assume a 400ST160 transmitter is driven at a level of 20Vrms and a 400SR160 receiver is located 5 meters from the ransmitter and loaded with a 3. K Ohm resistor (loaded resistor value varies receiver sensitivity, please see â€Å"Acoustic Performance† of transducer data sheet). The analysis is necessary to the fundamental understanding of the principals of sound wave propagation and detection but it is tedious. The figure 10 below is a graphical representation of previous analysis which may be used once in the SPL at the receiver is determined. Enter the graph from the SPL axis and proceed upward to an intersection with –dB sensitivity level of the receiver using the 1V/? bar referenced data. Follow a horizontal line to the â€Å"Y† axis to obtain the receiver output in V. At Receiver Ultrasonic echo ranging : Ultrasonic ranging systems are used to determine the distance to an object by measuring the time required for an ultrasonic wave to travel to the object and return to the source. This technique is frequently referred to as â€Å"echo ranging†. The distance to the object may be related to the time it will take for an ultrasonic pulse to propagate the distance to the object and return to the source by dividing the total distance by the speed of sound which is 344 meters/second or 13. 54 inches/millisecond. IC’s [pic] BASIC OF LM833 Low noise dual operational amplifier It is a monolithic dual operational amplifier particularly well suited for audio applications. It Offers low voltage noise (4. 5nV/vHz) and high frequency performances (15MHz Gain Bandwidth Product, 7V/? s slew rate). In addition the LM833 has also a very low distortion (0. 002%) and excellent phase/gain margins. [pic] TOP VIEW AND PIN SET [pic] Features of LM833 †¢ LOW VOLTAGE NOISE: 4. 5nV/vHz †¢ HIGH GAIN BANDWIDTH PRODUCT: †¢ 15MHz †¢ HIGH SLEW RATE: 7V/? s †¢ LOW DISTORTION: 0. 002% †¢ EXCELLENT FREQUENCY STABILITY †¢ ESD PROTECTION 2kV Basic of LM311 The LM111 series are voltage comparators that have input currents approximately a hundred times lower than devices like the mA710. They are designed to operate over a wider range of supply voltages; from standard  ±15 V op amp supplies down to a single 3 V supply. Their output is compatible with RTL, DTL, and TTL as well as MOS circuits. Further, they can drive lamps or relays, switching voltages up to 50 V at currents as high as 50mA. Both the inputs and the outputs of the LM111 series can be isolated from system ground, and the output can drive loads referred to ground, the positive supply, or the negative supply. Offset balancing and strobe capability are provided and outputs can be wire-ORed. Although slower than the mA710 (200 ns response time versus 40 ns), the devices are also much less prone to spurious oscillations. [pic] TOP VIEW AND PIN SET [pic] features FEATURES †¢ Operates from single 3 V supply (LM311B) †¢ Maximum input bias current: 150 nA (LM311: 250 nA) †¢ Maximum offset current: 20 nA (LM311: 50 nA) †¢ Differential input voltage range:  ±30 V †¢ Power consumption: 135 mW at  ±15 V †¢ High sensitivity: 200 V/mV †¢ Zero crossing detector 7805 The 7805 series of three-terminal positive regulator are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. [pic] 1 2 3 [pic] Internal diagram [pic] Features †¢ Output Current up to 1A Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V †¢ Thermal Overload Protection †¢ Short Circuit Protection †¢ Output Transistor Safe Operating Area Protection 74HC14N HEX SCHMITT TRIGGER INVERTER Basic of 7414 Each circuit functions as an inverter, but because of the Schmitt action, it has different input threshold levels for positive (VT+) and for negative going(Vt-) signals. These circuit are temperature compensated and can be triggered from the slowest Micro controller AT89S52 Basic of AT89S52 The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry- standard 80C51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89S52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning. The Power-down mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next interrupt or hardware reset. [pic] Features of AT89S52 †¢ Compatible with MCS-51 ® Products †¢ 8K Bytes of In-System Programmable (ISP) Flash Memory – Endurance: 1000 Write/Erase Cycles †¢ 4. 0V to 5. 5V Operating Range †¢ Fully Static Operation: 0 Hz to 33 MHz †¢ Three-level Program Memory Lock †¢ 256 x 8-bit Internal RAM †¢ 32 Programmable I/O Lines †¢ Three 16-bit Timer/Counters †¢ Eight Interrupt Sources †¢ Full Duplex UART Serial Channel †¢ Low-power Idle and Power-down Modes †¢ Interrupt Recovery from Power-down Mode Watchdog Timer †¢ Dual Data Pointer †¢ Power-off Flag †¢ Fast Programming Time †¢ Flexible ISP Programming (Byte and Page Mode) Coding ; line 1 ; #include CLINE0 ; end of line 0 ; line 1 ; /* CLINE1 ; end of line 1 ; line 2 ; SFR31. H CLINE2 ; end of line 2 ; line 3 ; Copyright 1995 SPJ Systems, Pune CLINE3 ; end of line 3 ; line 4 ; CLINE4 ; end of line 4 ; line 5 ; This header file contains SFR declarations for the CPU 8031 CLINE5 ; end of line 5 ; line 6 ; Please note that you will have to include SFR31. H in your program, if you CLINE6 ; end of line 6 ; line 7 ; wish to access the SFRs from your C program. CLINE7 ; end of line 7 line 8 ; */ CLINE8 ; end of line 8 ; line 9 ; CLINE9 ; end of line 9 ; line 10 ; SFRACC0xe0 CLINE10 ACCequ0e0h ; end of line 10 ; line 11 ; SFRREG_B0xf0 CLINE11 REG_Bequ0f0h ; end of line 11 ; line 12 ; SFRPSW0xd0 CLINE12 PSWequ0d0h ; end of line 12 ; line 13 ; SFRSP0x81 CLINE13 SPequ081h ; end of line 13 ; line 14 ; SFRDPL0x82 CLINE14 DPLequ082h ; end of line 14 ; line 15 ; SFRDPH0x83 CLINE15 DPHequ083h ; end of line 15 ; line 16 ; SFRP00x80 CLINE16 P0equ080h ; end of line 16 ; line 17 ; SFRP10x90 CLINE17 P1equ090h ; end of line 17 ; line 18 ; SFRP20xa0 CLINE18 P2equ0a0h ; end of line 18 ; line 19 ; SFRP30x b0 CLINE19 P3equ0b0h end of line 19 ; line 20 ; SFRIP0xb8 CLINE20 IPequ0b8h ; end of line 20 ; line 21 ; SFRIE0xa8 CLINE21 IEequ0a8h ; end of line 21 ; line 22 ; SFRTMOD0x89 CLINE22 TMODequ089h ; end of line 22 ; line 23 ; SFRTCON0x88 CLINE23 TCONequ088h ; end of line 23 ; line 24 ; SFRTH00x8c CLINE24 TH0equ08ch ; end of line 24 ; line 25 ; SFRTL00x8a CLINE25 TL0equ08ah ; end of line 25 ; line 26 ; SFRTH10x8d CLINE26 TH1equ08dh ; end of line 26 ; line 27 ; SFRTL10x8b CLINE27 TL1equ08bh ; end of line 27 ; line 28 ; SFRSCON0x98 CLINE28 SCONequ098h ; end of line 28 ; line 29 ; SFRSBUF0x99 CLINE29 SBUFequ099h ; end of line 29 ; line 30 ; SFRPCON0x87 CLINE30 PCONequ087h ; end of line 30 ; line 31 ; CLINE31 ; end of line 31 ; line 2 CLINE0 ; end of line 0 ; line 1 ; /*float. h CLINE1 ; end of line 1 ; line 2 ; CLINE2 ; end of line 2 ; line 3 ; Copyright (c) SPJ Systems 1998 CLINE3 ; end of line 3 ; line 4 ; All Rights Reserved. CLINE4 ; end of line 4 ; line 5 ; */ CLINE5 ; end of line 5 ; line 6 ; CLINE6 ; end of line 6 ; line 7 ; #define FLT_RADIX2 CLINE7 ; end of line 7 ; line 8 ; #define FLT_DIG6 CLINE8 ; end of line 8 ; line 9 ; CLINE9 ; end of line 9 ; line 10 ; #define FLT_MANT_DIG24 CLINE10 ; end of line 10 ; line 11 ; #define FLT_MAX_EXP+128 CLINE11 ; end of line 11 ; line 12 #define FLT_MIN_EXP-125 CLINE12 ; end of line 12 ; line 13 ; CLINE13 ; end of line 13 ; line 3 CLINE0 ; end of line 0 ; line 1 ; #definestart_timer0()asmsetbtcon. 4 CLINE1 ; end of line 1 ; line 2 ; #definestop_timer0()asmclrtcon. 4 CLINE2 ; end of line 2 ; line 3 ; #definestart_timer1()asmsetbtcon. 6 CLINE3 ; end of line 3 ; line 4 ; #definestop_timer1()asmc lrtcon. 6 CLINE4 ; end of line 4 ; line 5 ; #defineex0_edge()asmsetbtcon. 0 CLINE5 ; end of line 5 ; line 6 ; #defineex0_level()asmclrtcon. 0 CLINE6 ; end of line 6 ; line 7 ; #defineex1_edge()asmsetbtcon. 2 CLINE7 ; end of line 7 ; line 8 ; #defineex1_level()asmclrtcon. 2 CLINE8 ; end of line 8 ; line 9 ; #defineenable_rx()asmsetbscon. 4 CLINE9 ; end of line 9 ; line 10 ; #definedisable_rx()asmclrscon. 4 CLINE10 ; end of line 10 ; line 11 ; #defineclr_ti()asmclrscon. 1 CLINE11 ; end of line 11 ; line 12 ; #defineclr_ri()asmclrscon. 0 CLINE12 ; end of line 12 ; line 13 ; #defineenable_ex0()asmorlie,#81h CLINE13 ; end of line 13 ; line 14 ; #defineenable_t0()asmorlie,#82h CLINE14 ; end of line 14 ; line 15 ; #defineenable_ex1()asmorlie,#84h CLINE15 ; end of line 15 ; line 16 ; #defineenable_t1()asmorlie,#88h CLINE16 ; end of line 16 ; line 17 ; #defineenable_ser()asmorlie,#90h CLINE17 ; end of line 17 line 18 ; #defineenable_t2()asmorlie,#0a0h CLINE18 ; end of line 18 ; line 19 ; #defineenable_all()asmmovie,#0bfh CLINE19 ; end of line 19 ; line 20 ; #defineenable()asmsetbie. 7 ; sets only the MSB CLINE20 ; end of line 20 ; line 21 ; #definedisable_ex0()asmanlie,#0feh CLINE21 ; end of line 21 ; line 22 ; #definedisable_t0()asmanlie,#0fdh CLINE22 ; end of line 22 ; line 23 ; #definedisable_ex1()asmanlie,#0fbh CLINE23 ; end of line 23 ; line 24 ; #definedisable_t1()asmanlie,#0f7h CLINE24 ; end of line 24 ; line 25 ; #definedisable_ser()asmanlie,#0efh CLINE25 ; end of line 25 ; line 26 ; #definedisable_t2()asmanlie,#0dfh CLINE26 end of line 26 ; line 27 ; #definedisable_all()asmmovie,#0 CLINE27 ; end of line 27 ; line 28 ; #definedisable()asmclrie. 7 ; clears only the MSB CLINE28 ; end of line 28 ; line 29 ; #defineset_hi_ex0()asmorlip,#1h CLINE29 ; end of line 29 ; line 30 ; #defineset_hi_t0()asmorlip,#2h CLINE30 ; end of line 30 ; line 31 ; #defineset_hi_ex1()asmorlip,#4h CLINE31 ; end of line 31 ; line 32 ; #defineset_hi_t1()asmorlip,#8h CLINE32 ; end of line 32 ; line 33 ; #defineset_hi_ser()asmorlip,#10h CLINE33 ; end of line 33 ; line 34 ; #defineset_hi_t2()asmorlip,#20h CLINE34 ; end of line 34 ; line 35 ; #defineset_lo_ex0()asmanlip,#0feh CLINE35 ; end of line 35 ; line 36 ; #defineset_lo_t0()asmanlip,#0fdh CLINE36 ; end of line 36 ; line 37 ; #defineset_lo_ex1()asmanlip,#0fbh CLINE37 ; end of line 37 ; line 38 ; #defineset_lo_t1()asmanlip,#0f7h CLINE38 ; end of line 38 ; line 39 ; #defineset_lo_ser()asmanlip,#0efh CLINE39 ; end of line 39 ; line 40 ; #defineset_lo_t2()asmanlip,#0dfh CLINE40 ; end of line 40 ; line 41 ; #defineset_double_baud()asmorlpcon,#80h CLINE41 ; end of line 41 ; line 42 ; #defineclr_double_baud()asmanlpcon,#7fh CLINE42 ; end of line 42 ; line 43 ; #definepowerdown()asmorlpcon,#2 CLINE43 ; end of line 43 ; line 44 ; #definego_idle()asmorlpcon,#1 CLINE44 ; end of line 44 ; line 45 ; #defineset_t0_mode(gate,c_t,mode)asmorltmod,#((gate * 8) + (c_t * 4) + mode) CLINE45 ; end of line 45 ; line 46 ; #defineset_t1_mode(gate,c_t,mode)asmorltmod,#(((gate * 8) + (c_t * 4) + mode) * 16) CLINE46 ; end of line 46 ; line 47 ; #defineset_com_mode(mode,sm2,ren)asmmovscon,#((mode * 64) + (sm2 * 32) + (ren * 16)) CLINE47 ; end of line 47 ; line 48 ; CLINE48 ; end of line 48 line 4 CLINE0 ; end of line 0 ; line 1 CLINE1 ; end of line 1 ; line 2 ; CLINE2 ; end of line 2 ; line 3 ; Copyright (c) SPJ Systems 1998 CLINE3 ; end of line 3 ; line 4 ; All Rights Reserved. CLINE4 ; end of line 4 line 5 ; */ CLINE5 ; end of line 5 ; line 6 ; CLINE6 ; end of line 6 ; line 7 ; unsigned char inportb (unsigned int portid) ; CLINE7 ; end of line 7 ; line 8 ; void outportb (unsigned int portid, unsigned int value) ; CLINE8 ; end of line 8 ; line 9 ; unsigned char peekb (unsigned int addr) ; CLINE9 ; end of line 9 ; line 10 ; void pokeb (unsigned int addr, uns igned int value) ; CLINE10 ; end of line 10 ; line 11 ; void set_tcnt (int tnum, unsigned int count) ; CLINE11 ; end of line 11 ; line 12 ; void delay (int count) ; CLINE12 ; end of line 12 ; line 13 ; void delay_ms (int count) ; CLINE13 ; end of line 13 ; line 14 unsigned char lo_nibb (unsigned char ch) ; CLINE14 ; end of line 14 ; line 15 ; unsigned char hi_nibb (unsigned char ch) ; CLINE15 ; end of line 15 ; line 16 ; int getbyte () ; CLINE16 ; end of line 16 ; line 17 ; void sendbyte (unsigned char ch) ; CLINE17 ; end of line 17 ; line 18 ; int ser_rdy () ; CLINE18 ; end of line 18 ; line 19 ; void init_ser () ; CLINE19 ; end of line 19 ; line 20 ; CLINE20 ; end of line 20 ; line 21 ; #defineINT_EXT01 CLINE21 ; end of line 21 ; line 22 ; #defineINT_TMR02 CLINE22 ; end of line 22 ; line 23 ; #defineINT_EXT13 CLINE23 ; end of line 23 ; line 24 ; #defineINT_TMR14 CLINE24 ; end of line 24 line 25 ; #defineINT_SER5 CLINE25 ; end of line 25 ; line 26 ; #defineINT_TMR26 CLINE26 ; end o f line 26 ; line 27 ; CLINE27 ; end of line 27 ; line 5 CLINE0 ; end of line 0 ; line 1 ; /*math. h CLINE1 ; end of line 1 ; line 2 ; CLINE2 ; end of line 2 ; line 3 ; Copyright (c) SPJ Systems 1998 CLINE3 ; end of line 3 ; line 4 ; All Rights Reserved. CLINE4 ; end of line 4 ; line 5 ; */ CLINE5 ; end of line 5 ; line 6 ; CLINE6 ; end of line 6 ; line 7 ; #definepye3. 14285714285714 CLINE7 ; end of line 7 ; line 8 ; #definepyex26. 28571428571429 CLINE8 ; end of line 8 ; line 9 ; #definepye_2 1. 57142857142857 CLINE9 ; end of line 9 line 10 ; #definepyex3_2 4. 71428571428571 CLINE10 ; end of line 10 ; line 11 ; #defineLOG20. 30102999566 CLINE11 ; end of line 11 ; line 12 ; #defineNLOG20. 69314718056 CLINE12 ; end of line 12 ; line 13 ; #defineCONST_M0. 43429 CLINE13 ; end of line 13 ; line 14 ; CLINE14 ; end of line 14 ; line 15 ; float sin (float x) ; CLINE15 ; end of line 15 ; line 16 ; float cos (float x) ; CLINE16 ; end of line 16 ; line 17 ; float tan (float x) ; CLINE17 ; end of line 17 ; line 18 ; float asin(float x) ; CLINE18 ; end of line 18 ; line 19 ; float acos (float x) ; CLINE19 ; end of line 19 ; line 20 ; float sinh (float x) ; CLINE20 ; end of line 20 ; line 21 ; float cosh (float x) ; CLINE21 ; end of line 21 ; line 22 ; float tanh (float x) ; CLINE22 ; end of line 22 ; line 23 ; float exp (float x_flval); CLINE23 ; end of line 23 ; line 24 ; float log (float value) ; CLINE24 ; end of line 24 ; line 25 ; float log10 (float value) ; CLINE25 ; end of line 25 ; line 26 ; float pow (float x, float y) ; CLINE26 ; end of line 26 ; line 27 ; float sqrt (float x) ; CLINE27 ; end of line 27 ; line 28 ; float ceil (float x) ; CLINE28 ; end of line 28 ; line 29 ; float floor (float x) ; CLINE29 ; end of line 29 ; line 30 ; float fabs (float x) ; CLINE30 end of line 30 ; line 31 ; float ldexp (float number, int power) ; CLINE31 ; end of line 31 ; line 32 ; float frexp (float number, int *power) ; CLINE32 ; end of line 32 ; line 33 ; float modf (float x, float *ipart) ; CLINE33 ; end of line 33 ; line 34 ; float fmod (float n1, float n2) ; CLINE34 ; end of line 34 ; line 35 ; CLINE35 ; end of line 35 ; line 6 CLINE0 ; end of line 0 ; line 1 ; /*stdlib. h CLINE1 ; end of line 1 ; line 2 ; CLINE2 ; end of line 2 ; line 3 ; Copyright (c) SPJ Systems 1998 CLINE3 ; end of line 3 ; line 4 ; All Rights Reserved. CLINE4 ; end of line 4 ; line 5 ; */ CLINE5 ; end of line 5 line 6 ; CLINE6 ; end of line 6 ; line 7 ; float atof (char *s) ; CLINE7 ; end of line 7 ; line 8 ; int atoi (char *s) ; CLINE8 ; end of line 8 ; line 9 ; long int atol (char *s) ; CLINE9 ; end of line 9 ; line 10 ; int abs (int n) ; CLINE10 ; end of line 10 ; line 11 ; long int labs (long int n) ; CLINE11 ; end of line 11 ; line 12 ; CLINE12 ; end of line 12 ; line 13 ; void int2bcd (int value, char *dest, int ndigits) ; CLINE13 ; end of line 13 ; line 14 ; void itoa_c31 (int value, char *dest, int ndigits) ; CLINE14 ; end of line 14 ; line 15 ; void ui2a_c31 (unsigned int value, char *dest, int ndigits) ; CLINE15 end of line 15 ; line 16 ; void ui2bcd (unsigned int value, char *dest, int ndigits) ; CLINE16 ; end of line 16 ; line 17 ; CLINE17 ; end of line 17 ; line 18 ; void long2bcd (long int val, char *dest, int cnt) ; CLINE18 ; end of line 18 ; line 19 ; void ltoa_c31 (long int val, char *dest, int cnt) ; CLINE19 ; end of line 19 ; line 20 ; CLINE20 ; end of line 20 ; line 7 ; #include CLINE0 ; end of line 0 ; line 1 ; /*etc. h CLINE1 ; end of line 1 ; line 2 ; CLINE2 ; end of line 2 ; line 3 ; Copyright (c) SPJ Systems 1998 CLINE3 ; end of line 3 ; line 4 ; All Rights Reserved. CLINE4 ; end of line 4 ; line 5 ; */ CLINE5 end of line 5 ; line 6 ; CLINE6 ; end of line 6 ; line 7 ; int bcd2int (char *str, int ndigits) ; CLINE7 ; end of line 7 ; line 8 ; void flot2str (float value, char *dest) ; CLINE8 ; end of line 8 ; line 9 ; CLINE9 ; end of line 9 ; line 8 ; #include CLINE0 ; end of line 0 ; line 1 ; /*string. h CLINE1 ; end of line 1 ; line 2 ; CLINE2 ; end of line 2 ; line 3 ; Copyright (c) SPJ Systems 1998 CLINE3 ; end of line 3 ; line 4 ; All Rights Reserved. CLINE4 ; end of line 4 ; line 5 ; */ CLINE5 ; end of line 5 ; line 6 ; CLINE6 ; end of line 6 ; line 7 ; char * strcpy (char *dest, char *src) ; CLINE7 ; end of line 7 ; line 8 char * strncpy (char *dest, char *src, int maxlen) ; CLINE8 ; end of line 8 ; line 9 ; char * strcat (char *dest, char *src) ; CLINE9 ; end of line 9 ; line 10 ; int strcmp (char *s1, char *s2) ; CLINE10 ; end of line 10 ; line 11 ; unsigned int strlen (char *src) ; CLINE11 ; end of line 11 ; line 12 ; char * strlwr (char *s) ; CLINE12 ; end of line 12 ; line 13 ; char * strupr (char *s) ; CLINE13 ; end of line 13 ; line 14 ; CLINE14 ; end of line 14 ; line 15 ; void * memset (void *s, int c, int n) ; CLINE15 ; end of line 15 ; line 16 ; CLINE16 ; end of line 16 ; line 9 ; CLINE9 ; end of line 9 ; line 10 ; CLINE10 end of line 10 ; line 11 CLINE11 ; end of line 11 ; line 12 CLINE12 ; end of line 12 ; line 13 CLINE13 ; end of line 13 ; line 14 CLINE14 ; end of line 14 ; line 15 ; CLINE15 ; end of line 15 ; line 16 CLINE16 ; end of line 16 ; line 17 CLI NE17 ; end of line 17 ; line 18 ; float f1,f2,s1,s2; CLINE18 ; end of line 18 ; line 19 ; CLINE19 ; end of line 19 ; line 20 ; /*************************************************** CLINE20 ; end of line 20 ; line 21 ; * Prototype(s) * CLINE21 ; end of line 21 ; line 22 ; ***************************************************/ CLINE22 ; end of line 22 line 23 ; CLINE23 ; end of line 23 ; line 24 CLINE24 ; end of line 24 ; line 25 CLINE25 ; end of line 25 ; line 26 CLINE26 ; end of line 26 ; line 27 CLINE27 ; end of line 27 ; line 28 CLINE28 ; end of line 28 ; line 29 ; void LCD_init(); CLINE29 ; end of line 29 ; line 30 ; CLINE30 ; end of line 30 ; line 31 ; /*************************************************** CLINE31 ; end of line 31 ; line 32 ; * Sources * CLINE32 ; end of line 32 ; line 33 ; ***************************************************/ CLINE33 ; end of line 33 ; line 34 CLINE34 ; line 35 ; { CLINE35 _LCD_delay: end of line 35 ; line 36 ; unsigned char n; CLINE36 ; end of line 36 ; line 37 ; unsigned char i; CLINE37 ; end of line 37 ; line 38 CLINE38 pushbp movbp,sp incsp incsp for0: movr1,bp incr1 incr1 [email  protected],#0 for_in0: mova,bp adda,#0fdh movr1,a movmyacc,@r1 movr0,#myacc movr1,bp incr1 incr1 mova,@r1 clrc subba,@r0 clra movacc. 0,c [email  protected],a mova,myacc jnzfor_ok0 ljmpfor_out0 for_ok0: ; line 39 ; { CLINE39 ; line 40 CLINE40 for1: movr1,bp incr1 [email  protected],#0 for_in1: movr1,bp incr1 movr0,#myacc mova,@r1 clrc subba,#100 clra movacc. 0,c [email  protected],a mova,myacc jnzfor_ok1 ljmpfor_out1 for_ok1: ; line 41 ; { CLINE41 ; line 42 asm nop CLINE42 nop ; line 43 ; } CLINE43 for_inc1: movr1,bp incr1 [email  protected] ljmpfor_in1 for_out1: ; line 44 ; } CLINE44 for_inc0: movr1,bp incr1 incr1 [email  protected] ljmpfor_in0 for_out0: ; end of line 44 ; line 45 ; CLINE45 ; end of line 45 ; line 46 ; } CLINE46 movsp,bp popbp ret ; end of line 46 ; line 47 ; CLINE47 ; end of line 47 ; line 48 ; CLINE48 ; end of line 48 ; line 49CLINE49 ; line 50 ; { CLINE50 _LCD_command: ; end of line 50 ; line 51 CLINE51 pushbp movbp,sp mova,bp adda,#0fdh movr1,a mov160,@r1 ; end of line 51 ; line 52 CLINE52 clr P3. 2 ; end of line 52 ; line 53 CLINE53 clr p3. 1 ; end of line 53 line 54 CLINE54 setb P3. 0 ; end of line 54 ; line 55 CLINE55 clr P3. 0 ; end of line 55 ; line 56 CLINE56 mova,#01h pushacc lcall_LCD_delay decsp ; end of line 56 ; line 57 ; } CLINE57 movsp,bp popbp ret ; end of line 57 ; line 58 ; CLINE58 ; end of line 58 ; line 59 CLINE59 ; line 60 ; { CLINE60 _LCD_putc: ; end of line 60 ; line 61 ; P2 = ascii; CLINE61 pushbp movbp,sp mova,bp adda,#0fdh movr1,a mov160,@r1 ; end of line 61 ; line 62 CLINE62 setb P3. 2 ; end of line 62 ; line 63 ; asm clr p3. 1 CLINE63 clr p3. 1 ; end of line 63 ; line 64 CLINE64 setb P3. 0 ; end of line 64 ; line 65 ; asm clr P3. 0 CLINE65

Do You Know a Child that Does Not Want to Ride a Bike? Essay

Do you know a child that does not want to ride a bike? Well I do not know anyone. This means I was a healthy young girl like others who were willing to learn how to ride the bicycle. I remember that process so I think I was around five years old. Therefore, to learn riding a bike on my own without the training wheels was an exciting experience. At that moment I did not think about bicycle accidents at all and consequences. Finally, when you learn how to ride the bike it lasts forever and that why is so important to do it at childhood age. I was very excited when my parents bought me a bike. This meant that it was about time for me to learn riding a bike on my own. I could not wait until my dad put all the bike pieces together. I remember how I sat on the bike and got so scared â€Å"how am I going to learn to ride my bike?†. My dad made me calm down when he told me that he is going to hold the bike and I will be fine. Although, I still was scared but I trusted my dad and started pressing the pedals. Everything was going well so I was getting more excited and fascinated. However, I forgot about my dad holding the bike all the time. After while my dad let go the bike and I fell of course I cry and got enough for one day. Finally, I realize that it is going to be difficult and challenging to lear rinding the bike. However, I still thought that riding a bike is so much fun but it will take a lot of practice. The next day in the morning I was ready to do it again of course with help of my dad. For this reason, I suffered my dad from the morning. Finally, he agreed to help me. This time I was riding the bike much more stable and faster so my dad was running and got tired quickly since he did not want me to fall again. Therefore, our lesson did not last long but I felt confident after and for the next day I was ready to try it all by myself. Hence, the next day my precious learning was going smoothly. Finally, by looking forward and pedaling I was riding the bike on my own for the first time. This day bring me so much happiness and new experience. Riding the bike it is so much fun but sometimes accidents happen and they hurt so much. I also, remember my accident and how all that happened. I thought that I am excellent bicycle rider already and I rode the bike so fast. Until my mom saw me, she shout right away â€Å"slow down† for this reason, I braked to hard. Thus, at this moment my body jumped out of the bikes steering wheel to the front. I landed on the ground additionally I did not move at all. My mom was speechless and in her mind thought flashed â€Å"is she is dead†. I know that because she told me later. She finally came over to get me and find out if I am fine. After the accident I had a couple bruises but nothing broken. This was my first big accident but I learn that I should not ride so fast and be careful more when I am on the bike. Riding the bicycle is very important because it is good exercise and so much for when the whole family is able to ride their own bike. However, we must remember that the easiest way is to learn at young age. While we are children we are forget all the bruises so quickly. Moreover, children are not so scared and do not give up so easily. Sometimes even if the children do not want to do it again it is so much easier to convince them with good a example or advice. Children will listen faster than adults and will try again. These are all the reason why I am thankful to my parents that I know how to ride the bike as a child. Since I learned how to ride the bike as a child I did transfer to my children. Me and my family draw benefits by riding a bike during the summer. That why is important to learn the bike specially when we are young. In conclusion, learning riding the bicycle is important specially at young age. Furthermore, it is a big and thrilling experience which one bring happiness for rest of the life. Bicycle accidents just teach as a lesson how to ride more safely. Therefore, all the parents should help their children learn riding a bike so afterwards they will be grateful to them for knowing how to ride the bike.

Contract Law Essay Example | Topics and Well Written Essays - 750 words - 1

Contract Law - Essay Example Trietel distinguishes the obligations arising out of a contract on the basis of mutual agreement between parties3. The â€Å"consideration,† which Stone defines as â€Å"what one party to an agreement is giving, or promising in exchange for what is being given or promised from the other side†4 in this case is 2000 pounds, payable to Alexander Constructions, for completing the excavation. However, when Alexander Constructions strikes the thick layer of rock, it is promised an additional 500 pounds by Brown in the interest of getting the work completed on time. This is not however, a part of the original consideration that has been spelt out in the contract. Brown may be able to reply on the precedent in the case of Stilk v Myrick5 to refute the payment of an extra 500 pounds, since Alexander Constructions was only carrying out the excavations which were already a part of the original contract. In the Stilk6 case, Stilk was a sailor who was promised additional pay to get the vessel back to London when two other sailors deserted ship. The Court however held that under the terms of his contract, Stilk was obliged to cope with emergencies and had therefore done nothing beyond his contractual terms to justify additional pay. This could be applied to the case of Alexander Constructions as well. However, a similar situation arose in the case of Hartley v Ponsonby,7 where a sailor sued for additional pay that was offered to get the ship back when other sailors deserted ship. But in this case, the Court fund on behalf of the sailor and he was granted the additional pay. The only difference in these two cases lay in the fact that in the Stilk case, the number of sailors who deserted was only two, hence the condition of the remaining sailors was not dire and they should have been able to cope. As opposed to this, in the Hartley case, there were substantial desertions,

Education Management Essay Example | Topics and Well Written Essays - 5000 words

Education Management - Essay Example N., J.J. Van Muijen, and P. Koopman, 2003, 19-34). Therefore, the recent adding of NME raises lawful questions concerning the underlying principle or require for this new field. One strength quarrels that all management is basically the similar and consequently that nonprofit executive should take MBA and other time-tested management amounts. Strategic View of This Activity Strategy Management of manufacturing enterprise engrosses the harmonization of human attempt and fabric resources toward the attainment of organizational objectives. Furthermore, the essential objectives of manufacturing associations in any country are financial in natural world, and in the end reflect the requirements of civilization for useful goods and armed forces (Dalal, N.P., Quible, A., & Wyatt, K, 2002, 607-621). This is true whether the venture is a confidential business attempting to attain a desired height of profitability, or a community entity attempt to fulfill a manufacture plan recognized by condition establishment. In the final psychoanalysis, all manufacturing enterprise are social organization, and their continued existence is in a straight line connected to their aptitude to give useful goods and services, regardless of whether these merchandise and armed forces are inspired by other associations, the administration, or the community at great (Drucker P. F, 2001, 88-93). According to the expert analysis the basic difficulty of engineering management, from society's end of view, is to turn out to be steadily additional efficient over occasion. Growing productive competence is usually careful a desirable goal for executives in most civilizations. No doubt, in fact, rising productive competence may be regard as the basic... From this discussion it is clear that  management of manufacturing enterprise engrosses the harmonization of human attempt and fabric resources toward the attainment of organizational objectives. Furthermore, the essential objectives of manufacturing associations in any country are financial in natural world, and in the end reflect the requirements of civilization for useful goods and armed forces. This is true whether the venture is a confidential business attempting to attain a desired height of profitability, or a community entity attempt to fulfill a manufacture plan recognized by condition establishment. In the final psychoanalysis, all manufacturing enterprise are social organization, and their continued existence is in a straight line connected to their aptitude to give useful goods and services, regardless of whether these merchandise and armed forces are inspired by other associations, the administration, or the community at great.As the paper highlights  some kind of ed ucation passes on some information. But it is the type and deepness of information and skill imparted from side to side teaching and preparation that are vital in connection with the excellence of managerial presentation. In this study we are paying attention not merely in the only quantitative aspect of Soviet teaching and training that narrate to management progress, but also in the excellence and satisfied of them.

Finance For Managers Essay Example | Topics and Well Written Essays - 1500 words

Finance For Managers - Essay Example Top managers use budgets for the company as a whole while middle managers traditionally focus on the budget performance of their department or division. Normally the types of budgets used in different units pertain to expense budget, revenue budget, cash budget and capital budget. And expense budget focuses on anticipated and actual expense for each department. When actual expenses exceed budgeted amounts, the difference signals the need to managers to identify whether a problem exists. It could highlight inefficiencies or leakages or in retrospect if expenses are below budget, it could signal exceptional efficiency or failure to meet some other target, e.g. sales. Revenue budget lists forecasted and actual revenues of the division and / or the organization. Cash budget estimates receipts and expenditures of money of a daily or weekly basis – it shows the level of funds flowing through the organization and their nature. Cash budget is very important for liquidity management of the company for daily business activities. Capital budget is for planned investments in major assets. It not only have large impact on future expense, it is for investments designed to enhance profits of the organization. Capital budgets needs to be monitored in order to evaluate whether the assumptions made about return on such investments are holding true. Many traditional companies use top down budgeting which means that the budgeted amounts for the coming year are literally imposed on middle and lower level managers. The managers set departmental budget targets in accordance with over all company revenues and expenditures specified by top executives. Although there are some advantages to the top down process, the movement toward employee empowerment, participation and learning encourages the adoption of bottom up budgeting – a process in which lower level managers anticipate their departments’

Qualitative data analysis assignment Example | Topics and Well Written Essays - 2500 words

Qualitative data analysis - Assignment Example Reactions from even an unstructured qualitative meeting might be entered into a workstation with the end goal that it should be coded, numbered and broken down with divisions. The qualitative analyst, on the other hand, has no framework for pre-coding, hence a strategy for distinguishing and naming or coding information needs to be created that is the best for each one examination. This is in particular known as the substance dissection. The substance might be broken down on two levels: Basic level or the show level. A clear record of the information is presented that is the information is exchanged, yet no remarks or speculations regarding why or how are discussed. Moreover, a larger amount or inert level of dissection is also undertaken a more interpretive investigation that is concerned with the reaction and also what may have been derived or inferred. Content dissection includes coding and ordering information, likewise alluded to as classifying and indexing and the point of conn ection investigation is to understand the information gathered and to highlight the paramount messages, gimmicks or discoveries. As per Bazeley, utilizing qualitative programming does not decrease the nature of the qualitative examination nor does it rearrange the entire methodology of doing qualitative exploration. What it does is, straightforwardness of information administration and information investigation procedures and make it more sensible and also thorough. Nvivo or whatever possible qualitative programming are simply instruments that will help the specialist in undertaking an investigation of qualitative information. In the present exploration, aside from the profits picked up from the gimmicks in Nvivo that was said prior, the scientists likewise profited regarding an expense caused for administrations rendered to oversee and dissect the information. Moreover, time

Capstone project Research Proposal Example | Topics and Well Written Essays - 1500 words - 1

Capstone project - Research Proposal Example It is the mandate of all nurses who deals with such patients to ensure that their safety if prioritized. This proposal seeks to address this issue by making sure that it is mandatory for all practicing nurses who deal with such patients of stroke, to administer dysphagia tests immediately a patient is admitted in the hospital before giving them any food substances. For this project, I will use an evidence based model. For effective results, in this research, I have used the conduct and utilization of research in nursing model (CURN) since the model seeks to carry out a research which gives findings to s particular behavior which improves the patients’ health outcome. (Scmidt, 2014)Similarly, conducted over a period of two weeks, this research seeks to prove that Dysphagia screening saves lives of persons who suffer from stroke on admission to hospitals. Many stroke patients need critical attention. Ensuring their safety while they have been admitted is one of the nurses’ most important things. The manner in which stroke patients are handled on arriving at the hospitals needs to be addressed. Most of the nurses do not carry out dysphagia screening as recommended for all stroke patients in the AHA/ASA guidelines (Stephenie, 2013). Some nurses go to the point of giving these patient foods without having the swallowing tests done on them prior to this. According to the data collected from my experience, only 3 out of 4 patients go through the swallowing tests. This means that the safety of the remaining patients is not prioritized. For the reason that nurses fail to carry out this necessary test, an estimated 50,000 die every year due to aspiration pneumonia after stroke. Evidently, most of these deaths can therefore be avoided by carrying out this test. The problems with swallowing in these patients are associated with a higher mortality rate (Jeff, 2013). Moreover, technologies have evolved which enable the patients to be screened for dysphagia

Nursing Essay Example | Topics and Well Written Essays - 1000 words - 1

Nursing - Essay Example This is a self-support group , so the chairman must also be an alcoholic. To begin he asked if there were any new comers. There were three of us and we each stood up and told the group our first names. I was told beforehand that the meeting runs on most occasions on a ‘single share’ system. This means that each person can speak for a few minutes and no one voice or opinion dominates, which seems very fair and egalitarian. Another factor is the way in which people speak to the whole group rather than perhaps saying to only one person ‘What you ought to do is†¦..† or to reprimand them This a meeting of equals. One by one members spoke about their experiences for a few minutes. In some cases they were still struggling with their alcoholism, one or two talked about the negative effect upon their health, and others were no longer drinking, but were still taking things a day at a time. Then one lady gave a longer pre-planned talk, outlining the full story of h er descent into alcoholism at quite an early age, because of difficulties at work. She described how things had got so bad that she could no longer care for her family, but did say that her husband did his best to be supportive. The meeting was then closed without discussion and we went our separate ways. Narcotics Anonymous Visit. I found the local chapter of Narcotics Anonymous simply by looking in the telephone book. I was surprised to find that the group met regularly in an anonymous building that I pass frequently. I thought it was an American self-support group, but on the web site and in the leaflet I was given I read:-. Every addict in the world has the chance to experience our message in his or her own language and culture and find the opportunity for a new way of life. This means that these people are just concerned with their own addiction, but are trying their best to help others. They even have a World Convention. Also they do not rely on the medical profession when it comes to writing their literature, but it all comes from members. The meeting began in a similar way to that of the Alcoholic Anonymous meeting in that there was friendly chat and then the meeting was called to order. Although some people did speak for a few minutes each, this was a teaching meeting which went through the twelve step program guide. I was assured that many had found this helpful. I was particularly struck by the first step when those addicted to narcotics come to the point where they can state â€Å"We admitted that we were powerless over our addiction, that our lives had become unmanageable.† The members are encouraged to place their lives into the hands of God, however they understood him to be. They need to make a definite turning round of their lives and search their inner being, something described as making a moral inventory. They are encouraged to share their decision with someone, and also to make amends to those who might have been harmed by their act ions, wherever this is possible. I had had a very negative view of drug users – usually only meeting them in the emergency room when they were at their lowest, but these people were trying really hard to improve. Health Fair . It was however in the main dominated by people and companies who make their living and profits from the Health Care industry, so I did have some doubts about motivation. There was for instance a stall where you could sign up for

1.The purpose of this coursework is to examine current fiscal and

1.The purpose of this is to examine current fiscal and monetary policies by the UK government and their effectiveness and impact on GDP and interest rates using graphical and regression analysis - Coursework Example In essence, the IS-LM model is a macro-economic tool demonstrating the relationship between interest rates and real out-put in the goods and services market and the money market. It is a combination of goods market and money-market equilibriums. The aggregate model describes general equilibrium situation in macro-economy. IS-LM model is based on assumption of fixed price level. This implies that general price level will not abruptly adjust when economic conditions alter. Suppose there is an increase in demand. Given supply, the increase in demand should produce an increase in price level (and in quantity exchanged within market). The period within which it stays unaltered is short run. The time series traits of variables using three tests reveal most of variables are stationary with intercept. This captures non-zero mean under alternative hypothesis. Nonetheless, many variables are non-stationary with constant and deterministic time trends. This captures deterministic trends under this alternative. The variables may therefore be regarded as stationary and does not require differencing. The IS Curve is representative of the equilibrium points in goods market, that is, the combinations of r and Y for which investments (I) are equal to savings (S). It is important to remember that investment is negatively related to real interest rate and is non-dependent on level of real output/income. Saving has a positive relationship to real interest rate and further increases with income. Various scholars have argued that the European sovereign debt crisis is traceable to the nineties whereby the 15 member states then, deliberated on the benefits of establishment of a common regional currency (Sgherri & Zoli, 2009). Despite agreeing on certain debt targets, there are many instances where member states out-rightly failed to adhere to the ceiling limits. Despite this obvious violation, no financial sanctions were imposed on

CIVIL ENGINEERING Design option Report Essay Example | Topics and Well Written Essays - 1000 words

CIVIL ENGINEERING Design option Report - Essay Example Also, the trams wouldn't be able to travel at significant speeds and its overhead wires could also cause obstructions along its path. Thus the policy of using of tram as the potential transport choice could be effectively implemented by providing underground tramway and hence would eliminate all the above mentioned disadvantages. Further, a new station at Ratho would also be very helpful as it would be capable to support wider choice of tram services and also helps the occupants in the neighbourhood residential area (Edinburgh, n.d.). The structure of the landscape shall be strictly confirming to the future aspiration by enhancing and upholding the rich heritage and natural assets in the region (Edinburgh, n.d). Further, appropriate precautions on safety norms conforming to the airport suburbs as per the airport safety guidelines would also be enforced. The eastern side of A8 is expected to turn into urban and hence, the short-term efforts would be to evolve appropriate landscape that would help to consolidate this. Provisions for quality open spaces are the other important aspects that need to be given prominence in the master plan. Protection of ancient monuments, historical buildings and heritage locations, like standing stone at Ratho stations, along this region shall be given due attention in the landscape development. All the new buildings designed shall confirm to the guidelines proposed for sustainable design of building units, which includes BREEAM standards. Considering these principles the major aspect s to be considered for Ratho station are retaining the football ground as the focal point for the extended village, promotion of housing units that are mostly of affordable types and creation of special ways for cycling and walking routes. BREEAM based station development. The sustainable development approaches could be adopted in the design of infrastructure components by following the BREEAM guidelines. The major factors to be considered are to have design plans that would result in special emphasis on cycle ways and pedestrian tracks. Another major features that could be incorporated are strengthening public transport systems with less dependence on private transport and also to have effective implementation of the proposed the travel plans. The important design considerations that need to be incorporated in the design of station facilities are as follows Incorporation of overall policy of energy efficiency by using energy efficient lighting or using low energy demanding lighting systems could be used to bring down the energy costs at the station significantly. Converting the railway station at Ratho as an energy self-reliant station capable of generating its own power is one of the design objectives. This could be attained by using the mechanical energy obtained from the turning of ticket gates as the passengers passes through it. The implementation of these systems is carried out using appropriate piezoelectric materials which is capable of creating voltages when mechanical stress is applied on it. The successful installation by East Japan railway Company has proven the concept of pooling energy in such ways. With the expected passenger volume at the station it is estimated that atleast 1000kW per second could be generated

Jot Case Study Essay Example for Free

Jot Case Study Essay There is a large number of companies of various sizes which design and sell toys to retailers globally. Most toy companies outsource the manufacture of their toys and currently 86% of the world’s toys are manufactured in China. Most of the rest of the world’s toys are manufactured in other Asian countries, with only low volumes of products manufactured in Europe and the USA. The toy market is divided up into a variety of sectors, by children’s age range and the type of toy. There are different sectors with toys aimed for babies under one year old; children aged 1 to 3 years and pre-school children of 3 to 5 years. There is a further sector for children of school age of 5 years and upwards. Additionally the toy market is broken down into categories of toys. Research has shown that children aged 2 to 4 years old receive the most toys in quantity but that the most money is spent on toys for the 6 to 8 year age group. Toys sold in the market to those children aged between 9 and 11 tend to be more sophisticated. Some of these games need access to the Internet and most involve more complex programming. The other feature of this age group is that the ‘buyer’ tends to switch to the child from the parent. That is not to say that the child pays the money, more that the child drives the buying decision, always subject to the budget and final say so of the parent. The current trend in toy sales is towards electronic toys and computer assisted learning. Many of these electronic toys are highly developed to be attractive to children. Sales of traditional toys and games have achieved relatively low growth in the European market over the last 10 years, whereas electronic toys and merchandise from popular films and TV programmes have seen reasonable growth. Merchandise from films and TV programmes are licensed to toy manufacturers or toy retailers that can achieve high short-term profits depending on the licensing arrangement and the volume of sales. However, fashion trends are difficult to predict and toy retailers can be left with large volumes of unsold inventories if the toys are unpopular or less in demand than originally anticipated. The toy market is highly seasonal and is dominated by the pre-Christmas sales period. Typically, around 30% to 55% of toy sales occur in the fourth quarter of the calendar year (October to December). China has established itself as a high quality, low-cost manufacturing base for a wide range of consumer products for global markets. It does not, as yet, principally design and create new products, but instead is capable of manufacturing products that have been created by Western companies. It is necessary for the companies which create the designs, whether the product is a toy, a range of clothing or a computer chip, to ensure that the design is protected by registering the design for intellectual property rights (IPR’s). However, in many instances small changes can be made so that ‘copies’ of the design do not breach the IPR. Legal protection of IPR’s is becoming increasingly important in today’s global markets, where resources are sourced in one area of the world, manufactured into finished products in another area (principally in China and other Asian countries) and then sold in other geographical markets. Most toy retailers procure a range of products from many different toy companies. There is a wide range of companies, from small to very large multi-national companies, which operate as toy design and distributing companies. These companies design, patent or license the toys and then outsource the manufacture to specialist toy manufacturers. Most toy companies outsource the manufacture of toys. Contracts are usual in the industry and would normally include clauses concerning design quality, delivery schedules and penalties for breaches of contract. The toy companies then sell their products to toy retailers. There is also a large discount market for toys where toys of inferior quality are sold. The retail prices in this market are often 50% less than in the conventional markets. There are several global toy fairs each year that attract buyers from toy retailers across the world. One of the largest toy fairs is held in Hong Kong in January each year, where new toys are launched for the following Christmas market. Other global toy fairs are held in Europe, Russia and the USA, also early in the calendar year. At these toy fairs, buyers will assess and choose which of the new toys may achieve high sales. The toy fairs attract a wide range of exhibitors that are launching new toys, both large listed companies and small companies. The level of sales achieved by many toy companies will often depend on orders generated from buyers attending these international toy fairs. Therefore, it is important that prototype toys and marketing literature is ready in order to meet the requirements of these global buyers at the start of each calendar year. Jot The Jot brand was established in 1998 by husband and wife team Jon and Tani Grun. The company initially designed a small range of toys that were manufactured in their home European country. These toys proved to be very popular in their home country and Jon Grun then expanded the range of products. By 2003, within five years of starting Jot, the founders were encouraged to see Jot’s products ordered by many large toy retailers across Europe. By this stage the company had grown considerably, and had annual sales of almost â‚ ¬2 million. Commencing in 2004, Jot started outsourcing all of its manufacturing to a range of manufacturing companies in China in order to reduce its cost base and to enable the company to price its products more competitively. By the end of 2010 sales revenue exceeded â‚ ¬8 million and the company had achieved substantial sales revenue growth each year. Jot has seen its sales revenue grow by 16% in the year ended 31 December 2010 and by almost 18% in the year to 31 December 2011. A summary of Jot’s key personnel is shown in Appendix 1 on page 11. Jot’s product range and serviced age groups Jot currently has a relatively small range of 34 products aimed at only 2 age groups. These are the pre-school age group of 3 to 5 year olds and the next age group of 5 to 8 year olds. It currently does not produce any toys aimed at babies aged less than one, toddlers aged under 3 years old or children aged over 8 years old. Jot’s products include a range of toys designed by the company, for which it holds the IPR’s, as well as some licensed toys, for which it pays a license fee to the companies that hold the IPR’s. Jot’s products mainly include electronic features and this is seen as one of the strengths of its products. Jot currently launches around 5 totally new products each year. It also enhances certain aspects of some of its other products to refresh their appearance and features. It also has a range of toys that sell consistently well and have not changed materially for a few years. Jot’s products for the 3 to 5 year old age group include: †¢ †¢ †¢ †¢ †¢ †¢ †¢ †¢ Construction toys with sound effects and electronic actions. Learning products such as mini-computers which ask questions and the child responds by pressing different keys. Toy vehicles some of which have electronic features such as sounds and lights. Plastic toys which have â€Å"animatronics† to make the toys move, for example, toy dinosaurs. Toy cameras. Electronic learning products to aid learning the alphabet and basic maths skills. Licensed soft play toys based on film and TV programme characters. Licensed plastic figures, cars and machines based on film and TV programme characters, some of which include electronic features that generate movements and sounds, including theme tunes. Jot’s products for the 5 to 8 year old age group include: †¢ †¢ †¢ †¢ Toy cameras and simple video cameras. Dolls and action figures some of which move and make sounds. Small hand-held games boxes for playing computer games and educational learning products to improve maths and readings skills. A range of games and educational learning products for the hand-held games boxes. In summary, most of Jot’s toys have simple electronics that make a sound or enable movement. Some of the more advanced toys have simple programming to enable educational aspects of the toy to be more interactive. Jot’s products are sold to toy retailers for between â‚ ¬7 and â‚ ¬38. These are Jot’s selling prices to toy retailers. Most of the retailers will then sell these toys at a large mark-up, which can be as much as 50% to 100%, i.e. a toy procured from Jot at â‚ ¬10 could be retailed to the end customer at as much as â‚ ¬20. Margins vary from product to product and whereas toys aimed at the 9 -11 age group carry more sophistication (and hence risk) they also carry higher margins. In the year ended 31 December 2011 Jot’s actual sales volumes were over 706,000 units across Jot’s entire range of products. The total sales revenue for the year ended 31 December 2011 was â‚ ¬9,866,000, which resulted in an average selling price of just under â‚ ¬14 per unit. Over 80% of Jot’s product sales are sold to retailers for â‚ ¬20 or less. Financials and shares Jot has achieved a high annual growth in sales, with sales revenue reaching â‚ ¬9,866,000 in the year ended 31 December 2011, a growth of 17.9% from 2010 (â‚ ¬8,371,000 sales revenue for year ended 31 December 2010). Additionally, it has achieved an operating profit margin of 5.58% in the year to 31 December 2011, a rise from the previous year’s profit margin of 5.41%. An extract from Jot’s accounts for the year ended 31 December 2011 is shown in Appendix 2 on page 12. Jot’s Statement of Cash Flows for the year ended 31 December 2011 is shown in Appendix 3 on page 13. Jot is a young, growing company that is dependent on loan finance. Jot has three bank loans totalling â‚ ¬1,600,000, each at an interest rate of 10% per year, which are due for repayment as follows: †¢ †¢ †¢ Bank loan of â‚ ¬500,000 due in January 2014. (about 14 months from the ‘current date’ Bank loan of â‚ ¬500,000 due in January 2015. Bank loan of â‚ ¬600,000 due in January 2020. Jot’s bank has been very responsive to the company’s needs for cash in order to fund its growth but has indicated that at the present time it would not be able to provide any additional long-term finance. Jot has an overdraft facility of â‚ ¬1,500,000, which the bank has stated is the maximum limit. The current cost of its overdraft is at an interest rate of 12% per year. At 31 December 2011, Jot’s overdraft was â‚ ¬960,000. Jot’s business is highly seasonal with a significant proportion of sales occurring in quarters 3 and 4. As Jot builds up its inventory in preparation for higher levels of sales in quarters 3 and 4, cash flow is negative during the second half of the year. This is because outsourced manufacturing for the majority of all products occurs mainly from the end of quarter 2, during all of quarter 3 and the beginning of quarter 4. Jot is a private limited company and not listed on any stock exchange. It has 40,000 shares in issue, each of â‚ ¬1 par value. The company has an authorised share capital of 200,000 shares. To date, the Board of Jot has not declared any dividends. The shares are held as follows: Number of shares held at 31 December 2011 Jon Grun Tani Grun Alana Lotz Boris Hepp Michael Werner Total 12,000 12,000 8,000 4,000 4,000 40,000 Percentage shareholding % 30 30 20 10 10 100 Production of toys Jot has its own in-house team of designers who are involved in designing toys that are unique, innovative and fun to play with. The production of new toys is split into two stages. Firstly, the design stage involves the design team developing a new toy and after it has been approved, the second stage is where the operations team is responsible for contracting an outsourced manufacturer for the mass production of each product. The head of Jot’s design team is Alana Lotz, Product Development Director. She is responsible for researching the market trends in toys globally and establishing the availability of new innovative technology that could be incorporated into new toy designs. This is what helps to make Jot’s product range innovative and at the ‘cutting edge’ of new technology, as the products incorporate new technology electronic chip components. Research and development work on new product development usually occurs between May and December each year so that the new products have been fully tested ready for the annual launch of Jot’s new range of toys each January. Jot currently launches 5/6 totally new products each year and the development costs are generally between â‚ ¬0.1 and â‚ ¬0.25 million for each new product. The total design and development costs are around â‚ ¬1.2 million each year. This is included in administrative expenses in Jot’s statement of comprehensive income. Jot has just finalised its range of new products for 2013, so as to allow time to produce marketing literature and prepare prototypes ready for the global toy fairs being held in January to March 2013 in various locations around the world. The design team which is based in the UK develops all new products through the following stages: †¢ †¢ †¢ †¢ †¢ †¢ Brainstorming for new ideas. Designing a new product using Jot’s CAD / CAM IT system. Production of first prototype. Market research and improvements through to production of second prototype. Sign off by design and management team. Application for intellectual property rights (IPR’s) for each product design. The design team is kept fresh by the introduction of new designers each year. Good designers are kept on but those that are seen as burnt out are let go. Early in 2012 a new designer was employed named Indy Kaplia who had some radical new designs to offer. One of these toys (a flying spaceship) had been rushed into production in time for the 2012 Christmas season and had been greeted well by the retailers. Jot uses a specialised company, based in Europe for the manufacture and testing of all prototype products and there are often two or three stages involved before the prototype product is produced to the satisfaction of the designers. Only when each product is signed off by the design and management team can Jot’s legal team apply for the IPR’s for the product design. Then the approved new product designs go into production by outsourced manufacturers. The designs are then electronically transferred to Jot’s operations team headed up by Michael Werner, Operations Director, for the selection and appointment of outsourced manufacturers. The stages in the production process are as follows: †¢ †¢ †¢ †¢ †¢ Designs are sent electronically to outsourced manufacturers for tender. Outsourced manufacturer(s) selected and appointed and volumes and delivery deadlines for production agreed. Packaging designs and artwork are prepared and approved. Production samples are reviewed by Jot’s in-house Quality Assurance team located both in Europe and in Asia. Production is commenced to meet agreed volume and delivery deadlines. Michael Werner is responsible for the selection, appointment and monitoring of Jot’s outsourced manufacturers and all aspects of the management of the outsourced manufacturing process for Jot’s products. Jot’s products are all manufactured by a small number of specialised outsourced manufacturing companies which are all based in China. Jot is responsible for shipments of all products from its outsourced manufacturers to its warehouses or sometimes directly to customers.

Textile dyeing and textile wastewater treatment

Textile dyeing and textile wastewater treatment Advances In Textile Dyeing And Textile Wastewater Treatment Using Advanced Oxidation And Membrane Filtration Technologies: A Review Introduction The textile industry is a diverse sector in terms of production of raw materials, operating processes, product development, and equipment. The industry is well-characterized for consuming large amounts of water, energy, and discharging high volumes of waste in to public sewage treatment plants (STP). The main sources of pollution in the textile sector are derived from operating processes such as dyeing and finishing mills. These processes use considerable levels of water (ex. 70-150L for 1kg of cotton), chemicals (salts, alkali, wetting agents, etc.), and dyestuffs (e.g. reactive dyes) to achieve the desired properties of the textile product of which contribute to the pollution load in the industry. Major pollutants of environmental concern in textile wastewater include toxic organic compounds, color, suspended solids, and biochemical/chemical oxygen demand (BOD5/COD). The disposal of textile effluent in the municipal STP is an environmental concern because these industrial pollutant s may pass through unchanged and enter the receiving rivers or streams potentially harming the welfare of aquatic life. The adverse effect of these pollutants on the aquatic environment include depletion levels in dissolved oxygen, reduction in photosynthetic activity, and increase susceptibility for organisms to acids and bases. Effluent treatment technologies proposed in literature include activated sludge, coagulation, ozone, electrochemical oxidation and membrane filtration technologies . Conventional treatment methods such as coagulation and activated sludge have been used to manage textile wastewater to governmental standards for discharging in sewage treatment plants however these processes are ineffective for removing color from wastewater. Advanced oxidation processes such as electrochemical oxidation and ozone are alternative applications to effectively remove color and toxic organic compounds however some disadvantages include operating costs and possible production of chlorinated organic by-products in the receiving waters. Membrane filtration processes such as nanofiltration and reverse osmosis are promising technologies for an ecological friendly approach to treating textile effluent for reuse since it consumes less water and energy. The aim of this review paper is to describe two novel methods for reducing pollution load in textile dyeing of cellulose fabrics. The first method is the use of cationic reagents as a pretreatment for cotton fibers to enhance dye fixation and the second method uses supercritical carbon dioxide (CO2) to replace water as a dye transfer medium. An overview on textile dyes, dye fixation, and dyeing process will be discussed. Furthermore, effluent treatment technologies such as coagulation, advanced oxidation processes (electrochemical oxidation and ozone) and membrane filtration technologies (nanofiltration and reverse osmosis) in which the mechanism and evaluated as promising applications for treating effluent water to be reuse in textile wet processing operations such as dyeing. Textile Dyes And Dye Fixation Dyes are described as colored substances with complex chemical structures and high molecular weights. By definition the color arises from the attachment of the auxochrome to the chromophore (light absorbing group) of the dyes that alters both the wavelength and intensity of absorption. Dyes manufactured for clothes makers are designed to have good light stability and chemical resistance to degradation, however due to the high solubility of dyes in water biological treatments are ineffective in removing color from the effluent. Wash fastness is an important factor to weigh into consideration when determining the durability of the product. It is dependent on the covalent bond strength between the fiber and dye against alkaline and acid hydrolysis, and the efficient use of water to remove unreacted dye from the substrate. The degree by which dyes are fixed on to fiber and get discharged into the treatment bath after wash-off is referred to as dye fixation. The influence of dye loss is a ttributed to several factors such as the type of dye, the depth of shade, application method, and liquid ratio (water/energy consumption). Cotton and other celullosic fabrics are colored with reactive dyes because these dyes have good light stability and good wash fastness characteristics but poor dye-fixation yields (60-70%). Reactive dyes attach on the fiber via a covalent bond formation between the reactive group of the dye and the nucleophilic group in the fiber. The dye-fiber reaction is facilitated by large amounts of salt and electrolytes that reduce the charge repulsion forces between the negatively charge dye molecules and the negatively charge hydroxyl groups in the fiber as a result of the ionization of cellulose hydroxyl groups in water. However, due to the competitive reaction between the hydroxyl anions (OH-) in the alkaline bath and negatively charge dye molecules for the ionized hydroxyl groups in the cellulose fibers which are the nucleophiles for the dye-fiber reaction; approximately 40% of hydrolyzed (un-fixed) dye remains in the treatment bath at the end of dyeing process. An extensive demand for was h-off is required to achieve the desired wash fastness characteristics on the product. Textile Dyeing Before the fabric enters the dyeing process it must be properly treated to remove all natural impurities and chemical residues applied during operating processes such as fiber production, and fabric weaving and knitting. The pretreatment process includes desizing, bleaching, and mercerization of which contribute nearly fifty percent of waste pollution generated by the industry. Conventional dyeing processes use large amounts of water nearly 100L of water per 1kg of textile. Water is a â€Å"poor† medium for transferring dyes on to the fabric from an environmental point of view because of the increasing shortage of water available. Salts and alkali are added when dyeing cotton with reactive dyes in order facilitate the affinity for the dye molecules on the fiber. The treatment bath at the end of dyeing process is heavily polluted with toxic organic compounds, electrolytes, and residual of dyes of which can be expensive to recover and purify. Effluent disposal is the primary opt ion since treated water to be reuse in the industry needs to have no color, no suspended solids, low COD, and low conductivity levels. Therefore, the development of environmentally safe production methods is challenging since both the wastewater quality and quantity depend to a considerable degree on the technique used for a certain substrate (fiber). Influence Of Cationization For Dyeing Cellulose Fibers With Reactive Dyes The influence of cationization for dyeing cotton with reactive dyes enables an environmentally friendly approach to increase dye utilization, lower water and energy consumption, and reduce effluent disposal/treatment. Cationization of cotton is generally performed by introducing amino groups in the cellulose fiber through the reaction of the hydroxyl groups in the cellulose fiber and the reactive group (e.g. epoxy and 4-vinylpyridine) of the quarternary cationic agents. The pretreatment of cellulose fibers with reactive cationic agents will increase dye adsorption as a result of the columbic attraction between anionic dye molecules and nucleophiles on the substrate. The dye-fiber reaction can occur under neutral or mild acidic conditions without the use of electrolytes and therefore severe wash-off procedures can be eliminated since hydrolysis of dyes generally occurs in alkaline conditions. EPTMAC, 2,3-epoxypropyltrimethylammonium chloride, is an example of a quarternary cationic agent used in research studies to investigate the use of cationization for improving dye adsorption of cellulose with reactive dyes. Under alkaline conditions EPTMAC will react with alcohols to form ethers and thus produce a cationized fiber when it reacts with the methyl hydroxyl groups at the C6 position of the cellulose polymer. A combination of electrostatic interactions such as ion-ion or ion-dipole forces, intramolecular and intermolecular hydrogen bonds, and van der waal forces may influence the adsorption of the cationic group of the pretreatment agent to the anionic carboxylic groups in the cellulose fiber. The reaction between the reactive group of dye molecules and the amino-functional nucleophiles of the cationized fiber has been proposed by Blackburn and Burkinshaw (2003) to occur via a nucleophilic substitution mechanism or a Michael addition to a double bond. Factors that appear to influence the cationic process of dyeing fabrics include cationic reagent concentration, dye concentration, and temperature. Kanik and Hauser (2004) demonstrated that increasing the cationic reagent concentration in the pretreatment solution caused a decrease in dye penetration of the substrate suggesting that an increase in surface coloration occurred as result of the strong ionic attraction of dye molecules for the cationic charges on the fiber. Montazer et al. (2007) reported that the color strength (K/S) values for dyeing with treated cotton with cationic process were often 2-4 times better than that of dyeing via conventional methods (K/S values range from 1-4). The effect of temperature influenced the percent of total dye utilization by increasing the absorption of cationic reagent for the substrate. Subramanian et al. (2006) demonstrated that better color strength values (K/S value 12.987) and maximum total dye utilization (T value 95.1%) were obtained when 20% concentration of cationic reagent (CIBAFIX WFF), 10g/L of soda ash, and an optimal temperature of 70 ºC was used as the cationization parameters. A substantial reduction in industrial pollutants such as BOD5, COD, and total dissolved solids were determined using cationic reagent CIBAFIX WFF compared to dyeing untreated fabric by conventional methods. Blackburn and Burkinshaw (2003) reported the pretreatment of fabric via cationization reduced the level of water consumption to nearly half of that applied during the normal dyeing process ( Textile Dyeing In SuperCritical Carbon Dioxide Supercritical fluid technology is a promising application for the development of a water-free dyeing process in that it can be environmental friendly, energy saving, increase productivity, and eliminate effluent treatment and disposal. The beneficial properties of dyeing textiles in supercritical carbon dioxide (SC-CO2) are that it is expensive, non-toxic, non-flammable, CO2 can be recycled, and control in dye application rate. SC-CO2 exhibits densities and solvating powers similar to liquid solvents adding to its advantages in textile processing, since its low viscosity and rapid diffusion properties allow the dye to diffuse faster into the textile fibers. SC-CO2 has been successfully employed as a solvent system in the dyeing and finishing processes for synthetic fibers such as polyesters. In polyester dyeing, SC-CO2 penetrates inside the fibers causing them to swell thereby making the fibers accessible to the dye molecules. As the pressure is lowered the dye molecules are trapped inside the shrinking polyester fibers and no waste is generated since the dye molecules cannot be hydrolyzed and no additional energy is required to dry the fabric after dyeing [18]. Since non-polar dyes are primarily used in supercritical CO2 dyeing further development is required to enhance the dyeing of natural fibers with ionic dyes such as acid dyes or reactive dyes because the affinity of natural textiles with dyes occurs by chemical (covalent bonds) interactions or fixed by physical (van der waals) forces.20-21 Kraan et al. (2003) reported four factors that influence the role of supercritical CO2 dyeing for natural fibers â€Å"(1) dye solubility at operating pressure and temperature, (2) fiber accessibility to allow diffusion of dye molecules on substrate pores, (3) dye-fiber substantivity, and (4) the reactivity of dye with the textile.† Sawada et al. (2004) investigated the action of co-surfactant on the phase boundaries of the pentaethylene glycol n-octyl ether C8H5 reverse micelle using various kinds of alcohols and discussed he solubility of ionic dyes in the C8H5 reverse micellar system when co-surfactant density of CO2 and temperature are varied. The research strategy was to dissolve the ionic dye in a SC-CO2/reverse micellar system that involves dispersing a small quantity of water in SC-CO2 and co-surfactant suitable dye bath that contained conventional ionic dyes in SC-CO2. Alcohol, particularly 1-pentanol seems is a suitable co-surfactant to accelerate the solubilization of water in SC-CO2; it assists the formation of stable reverse micelles. Pentaethylene glycol n-octyl ether C8H5 as a surfactant is soluble in liquid and SC-CO2; the complex C8H5/CO2 system has a potential to enhance the solubility of water by an addition of co-surfactant in comparison with a typical reverse micellar system in organic media . Beltrame et al (1998) investigated the effect of polyethylene glycol as a pre-treatment of cotton fabrics in SC-CO2 and the results showed that the dye uptake was strongly increased if cotton was pretreated with PEG. PEG is able to form hydrogen bonds with cellulose chains this prevents the complete deswelling of the fibers during the SC-CO2 treatment thus maintaining to cotton the more accessible to dyeing. At the end of the treatment however when the CO2 is evacuated the dyes migrate out of the polymer in the undissolved state through the polymer pores and washing fastness is consequently very low. In order to avoid these undesired effects benzamide which is soluble in SC-CO2 is a good solvent for disperse dyes as a synergistic agent; it is able to form hydrogen bonds with cotton and PEG thus favoring dye entrapment through the partial occlusion of cellulose pores. The results yield good dye uptake, light and wet-washing fastness are good increasing the durability of the product. F ernandez Cid et al (2005) prior to dyeing the cotton it was presoaked in a solution of methanol to swell the fibers. The methanol replaces the water in the cotton and will attach the cotton hydrogen bonds. The hydrophobic part of the methanol will make diffusion of hydrophobic non-polar reactive dyes into the cotton possible. Application In Wastewater Treatments The treatment of textile wastewater for reuse in textile operations represents an ecological and economical challenge since textile effluents vary in composition due to the different chemicals or physical processes used on fabrics and machinery. Textile pollutants of environmental concern include residual dyes, color, BOD, COD, heavy metals, pH, high suspended solids, and toxic organic compounds.2 Typical effluents characterized in the textile industry and their measurements are presented in Table 1 [23]. Table 1. Effluent Characteristics of Textile Wastewater [derived from Kdasi et al., 2004] Parameters Values pH 7.0-9.0 Biochemical Oxygen Demand (mg/L) 80-6,000 Chemical Oxygen Demand (mg/L) 150-12,000 Total suspended solids (mg/L) 15-8,000 Total dissolved solids (mg/L) 2,900-3,100 Chloride (mg/L) 70-80 Total Kjeldahl Nitrogen (mg/L) 70-80 Color (Pt-Co) 50-2500 The removal of COD and BOD are important from an environmental point view since high levels can deplete the level of dissolved oxygen in receiving rivers causing an increased amount of non-biodegradable organic matter.23 Some advantages and disadvantages for the various chemical-physical treatment processes applied for cleaning wastewater is listed in table 3 (edited from babu et al). References 1. Babu, B. R.; Parande, A.K.; Raghu, S.; Kumar, T.P. Textile Technology, Cotton Textile Processing: Waste Generation and Effluent Treatment. J. Cotton Sci. 11, 141-153 (2007). 2. Savin, I.; Butnaru, R. Wastewater Characteristics in Textile Finishing Mills. Environmental Engineering and Management Journal 7, 859-864 (2008). 3. Ren, X. Development of environmental performance indicators for textile process and product. Journal of Cleaner Production 8, 473-481 (2000). 4. Hendrickx, I.; Boardman, G.D. Pollution Prevention Studies in the Textile Wet Processing Industry [Literature Review]. VPI SU Dept. of Civil Engineering, Blacksburg, VA.. Tech. Rep. NCDENR (Ref/01/00469) (May 1995). 5. Ergas, S. J.; Therriault, B. M.; Reckhow, D. A. Evaluation of Water Reuse Technologies for the Textile Industry. Journal of Environmental Engineering 132, 315-323 (2006). 6. Laing, I. G. The Impact of Effluent regulations on the dyeing industry. Rev. Prog. Coloration 21, 56-71 (1991). 7. Alinsafi, A.; da Motta, M.; Le Bonte, S.; Pons, M.N.; Benhammou, A. Effect of variability on the treatment of textile dyeing wastewater by activated sludge. Dyes and Pigments 69, 31-39 (2006). 8. Lin, S.H. and Chen, M.L.. Treatment of Textile Wastewater by Chemical Methods for Reuse. Wat. Res. 31, 868-876 (1997). 9. Canizares, P.; Martinez, F.; Jimenez, C.; Lobato, J.; Rodrigo, M.A. Coagulation and Electrocoagulation of Wastes Polluted with Dyes. Environ. Sci. Technol. 40, 6418-6424 (2006). 10. ONeill, C.; Hawkes, F. R.; Hawkes, D. L.; Lourenco, N. D.; Pinheiro, H. M.; Delee, W. Colour in textile effluents-sources, measurement, discharge consents and simulation: a review. J. Chem. Technol. Biotechnol. 74, 1009-1018 (1999). 11. Kulkarni, S. V.; Blackwell, C. D.; Blackard, A. L..; Stackhouse, C. W.; Alexander, M.W.; Textile Dyes and Dyeing Equipment: Classification, Properties, and Environmental Aspects. US EPA , Research Triangle Park, NC, 1985. 12. Blackburn, R.S.; Burkinshaw, S.M. Treatment of Cellulose with Cationic, Nucleophilic Polymers to Enable Reactive Dyeing at Neutral pH withouth electrolyte addition. J. Applied Polymer Science 89, 1026-1031 (2003). 13. Fernandez Cid, M.V.; van Spronsen, J.; van der Kraan, M.; Veugelers, W.J.T.; Woerlee, G.F.; Witkamp, G.J. Excellent dye fixation on cotton dyed in supercritical carbon dioxide using flurotriazine reactive dyes. Green Chem. 7, 609-616 (2005). 14. Frazer, L. A Cleaner Way to Color Cotton. Env. Health Perspectives , 110, 252-254 (2002). 15. Montazer, M.; Malek, R.M.A.; Rahimi, A. Salt Free Reactive Dyeing of Cationized Cotton. Fibers and Polymers 8, 608-612 (2007). 16. Kanik, M. and Hauser, P.J. Printing Cationized Cotton with Direct Dyes. Textile Research Journal 74, 43-50 (2004). 17. Subramanian, M.; Kannan, S.; Gobalakrishnan, M.; Kumaravel, S.; Nithyanadan, R.; Rajashankar, K.J.; Vadicherala, T. Influence of Cationization of Cotton on Reactive Dyeing. JTATM 5, 1-16 (2006). 18. Montero, G.A.; Smith, C.B.; Hendrix, W.A.; Butcher, D.L. Supercritical Fluid Technology in Textile Processing: An Overview. Ind. Eng. Chem. Res., 39, 4806-4812 (2000). 19. Ozcan, A.S.; Clifford, A.A.; Bartle, K.D. Solubility of Disperse Dyes in Supercritical Carbon Dioxide. J. Chem. Eng. Data 42, 590-592 (1997). 20. kraan et al 21. Sawada, K.; Takagi, T.; Ueda, M. Solubilization of ionic dyes in supercritical carbon dioxide a basic study for dyeing fiber in non-aqueous media. Dyes and Pigments 60, 129-135 (2004). 22. Beltrame, P.L.; Castelli, A.; Selli, E.; Mossa, A.; Testa, G.; Bonfatti, A.M.; Seves, A. Dyeing of Cotton in Supercritical Carbon Dioxide. Dyes and Pigments, 39, 335-340 (1998). 23. Al-Kdasi, A.; Idris, A.; Saed, K.; Guan, C.T. Treatment of Textile Wastewater by Advanced Oxidation Processes-A Review. Global Nest: the Int.J. 6, 222-230 (2004).