Literary Techniques of Martin Luther Kings I Have a Dream...

From the steps of the Lincoln Memorial more than forty years ago, Martin Luther King electrified America with his momentous I Have a Dream speech. This speech demanded racial justice towards the mistreated black community of America. The theme of the speech was that all humans were created equal and that this should be the case for the future of America. Kings words proved to touch the hearts of millions of people and gave the nation a vocabulary to express what was happening to the black Americans. This did not happen by chance. Martin Luther Kings speech was carefully constructed so it would have the most appropriate diction to propose his facts and ideas. His speech involved multiple different literary techniques which were very†¦show more content†¦He uses short sentences very frequently to drum his ideas into the audiences mind. A perfect example of these short sentences is when King says, ?This is our hope.? By making those four words a complete sentence, it emphasises the individual words and really persuades the audience towards his ideas. Another persuasive structural technique which King uses to captivate the audience is the length of his paragraphs. He signposts the beginnings and ends of his paragraphs very effectively throughout his speech using recurring ideas. An example of this is when he starts 8 consecutive paragraphs with the words, ?I have a dream?. This helps the audience to understand his speech and each of the different points he makes. Another structural aspect of his speech which makes it easy to listen to is the grouping of ideas. The major grouping of the ideas in the speech is in two parts. The beginning of the speech is about how black people were being mistreated at the time and how the Negro was, ?sadly crippled by the manacles of segregation and the chains of discrimination.? The second part of the speech however, was all about looking to the future. It was about his dream of a nation where people, ?will not be judged by the colour of their skin but by the content of their character.? This structure to his speech makes it easy to listen to and helps draw the audience in to him. Martin Luther King used diction very effectively to persuade theShow MoreRelatedA Comparison of Dr. Kings I Have a Dream Speech and Mandelas Glory and Hope Speech1347 Words   |  6 PagesI Have a Dream and Glory and Hope were two speeches given, respectively, by Dr. Martin Luther King, Jr. and Nelson Mandela at times of great need; at times when ignorance and racially-based hubris intertwined themselves in the sparse gaps of human understanding. At first glance, the facets of humanity and blanket tranquillity seem to be in natural accord. Philosophers have struggled with the reason behind the absolute absence of peace as everybody, by definitions both classical and modern, longsRead MoreMartin Luther King s I Have A Dream Speech961 Words   |  4 PagesMartin Luther King Jr.’s Historic â€Å"I Have a Dream† Speech Dr. Martin Luther King’s â€Å"I Have a Dream† speech was written and delivered on August 28, 1963, on the steps of the Lincoln Memorial and remains one of the most historically influential and world-changing speeches of all time. Fifty-two years later, this speech is considered to be one of the best persuasive speeches ever delivered. Dr. King is not only attempting to persuade his audience to understand the plight of minorities in the UnitedRead MoreMartin Luther King I Have A Dream Speech1089 Words   |  5 Pages People on the Street â€Å"I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character.† These words spoken in the shadow of the Lincoln Memorial by Dr. Martin Luther King Jr. have reverberated through the years as a glowing example of the power of words. On August 28, 1963, Dr. King astounded America with his historic I have a Dream speech. His demand for racial justice and aRead MorePrejudice-to Kill a Mockingbird and Martin Luther King5895 Words   |  24 Pagesrealist fiction novel ‘To Kill a Mockingbird’ and Martin Luther King’s heart warming speech ‘I Have a Dream’. Both texts explore the theme of prejudice of white Americans on the Blacks in the racially tense times of the early twentieth century. Unlike Harper Lee, Martin Luther King goes a step further to persuade the audience that there is prejudice present and we should be motivated to stop this evil from blossoming in our world. Furthermore, in his speech King also proposes a non-conformist yet non-aggressiveRead MoreSnake thing Essay1338 Words   |  6 Pagesevents, while in Maus, the images are ‘fed’ to him, giving a different some sort of surprise or shock. Depending on the situation, one novel’s technique might be more emotionally powerful at times than the other. One element is ‘imagery’, and that technique in Maus compares with Night because Maus is a graphic novel with explanations and Night is a literary novel where one draws out his own picture in his mind. With Night, it all depends on the person’s imagination and how they create their own illustrationsRead MoreEssay on The Civil Rights Movement4776 Words   |  20 Pagesviolation by other citizens. That is the definition of civil rights, although when most people think of civil rights they instantly think it means black civil rights. This is understandable since blacks, more than any other minority group in America, have had the toughest and therefore the best known struggle for equal rights. This is due to the fact that most of the majority believed that when the people in the minority group are of another color, they are also different in other ways, and thereforeRead MoreA Linguistic Analysis of Obama’s Inaugural Address9492 Words   |  38 Pagesadvice during the research. Abstract In this essay I shall analyze Barack Obama’s Inaugural Address, January, 2009 from the perspective of various linguistic techniques. More specifically, I shall propose and focus on the idea that the composition of the speech has an aim to create a unity of the speaker and the audience in order to deliver the message. Moreover, the speaker maintains the atmosphere of unity throughout the speech, so that the speech produces an effect when the audience becomes a co-authorRead More The Progressive Era Essay2711 Words   |  11 PagesThe Progressive Era was a period that exposed the contradictions found in American society in the late nineteenth and early twentieth century. Theodore Roosevelt summed up the Progressive/Reform feeling in his Square Deal speech - that it was all about morals, not economics. His goal was the moral regeneration of the business world. He preached that it was wrong for some people to get ahead in business and politics by tricks and schemes, while others were cheated out of the opportunity. ThisRead MoreDeveloping Management Skills404131 Words   |  1617 Pagesaware of a trademark claim, the designations have been printed in initial caps or all caps. Library of Congress Cataloging-in-Publication Data Whetten, David A. (David Allred) Developing management skills /David A. Whetten, Kim S. Cameron.—8th ed. p. cm. Includes bibliographical references and index. ISBN 978-0-13-612100-8 1. Management—-Study and teaching. 2. Management—Problems, exercises, etc. Kim S. II. Title. HD30.4.W46 2011 658.40071 173—dc22 I. Cameron, 2009040522 10 9 8 7 6 5 4Read MoreRastafarian79520 Words   |  319 PagesMexico City Mumbai Nairobi Sà £o Paulo Shanghai Taipei Tokyo Toronto Oxford is a registered trade mark of Oxford University Press in the UK and in certain other countries Copyright  © 2003 by Ennis Barrington Edmonds The moral rights of the authors have been asserted Database right Oxford University Press (maker) All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior permission in writing

Juvenile Justice System Is The Primary System Essay

Juvenile Justice System is the primary system used to address and deal with youth who are caught and convicted of crimes. The juvenile justice system intervenes in delinquent behavior through police, court and correctional involvement, and is largely punitive. Youth and their parents or guardians can face a variety of consequences including probation, community service, youth court, youth incarceration, and alternative schooling. The juvenile justice system, similar to the adult system, operates from a belief that intervening early in delinquent behavior will deter adolescents from engaging in criminal behavior as adults. Furthermore, according to Elizabeth S. Barnert, statistic which stated that about 2 million juveniles were arrested and over 60 000 detained annually. The statistic displayed that the United States incarcerates a larger proportion of youths than any other developed country. In addition, 1 to 3 incarcerated adolescents represent a high-risk, vulnerable population wit h disproportionately high rates of unmet physical, developmental, social, and mental health needs, and higher mortality. Moving forward, 4 to 7 juvenile offending predicts a higher likelihood of chronic adult offending, as well as adverse adult outcomes such as poor health, substance use, and increased mortality. Nevertheless, African American youths are approximately 5 times more likely, and Latino and American Indian adolescents are 3 times more likely, to be detained than their WhiteShow MoreRelatedThe Juvenile Justice System Is The Primary System Essay1367 Words   |  6 PagesThe Juvenile Justice System is the primary system used to address and deal with youth who are caught and convicted of crimes. The juvenile justice system intervenes in delinquent behavior through police, court and correctional involvement, and is largely punitive. Youth and their parents or guardians can face a variety of consequences, including probation, community service, youth court, youth incarcerati on, and alternative schooling. The juvenile justice system, similar to the adult system, operatesRead MoreThe Juvenile Justice System Is The Primary System Used991 Words   |  4 Pages The Juvenile Justice System is the primary system used to handle youth who are convicted of criminal offenses. It is just over 100 years old. Over time it has gone through several changes and its unlikely to disappear anytime soon. We as Americans are still trying to find different ways to approach juvenile justice vs. approaching it as adult justice. Throughout most of history, young adults and or children did not have a separate status between juvenile and adults. Once you reached the agesRead MoreTrying Juveniles as Adults Essay1312 Words   |  6 PagesAccording to Caldwell (1961) the juvenile justice system is based on the principle that youth are developmentally and fundamentally different from adults. According to Mack (1909) the focus of the juvenile justice system has shifted from â€Å"was the crime committed† to â€Å"why did the child commit the crime†, â€Å"how can we help the child†. When performing as it is designed and up to the initial intentions, the juvenile court balances rehabilitation (treatment) of the offender with suitable sanctions whenRead MoreThe Decision, And Impact On Today s Criminal Justice System1024 Words   |  5 Pagesregards to a juvenile right to consul. Then this learner will briefly discuss the case, the decision, and impact on today s criminal justice system. Afte r which, the discussion will state if source for this case is primary or secondary and what implications that may have for that case. Gerald â€Å"Jerry† Gault (case) Fifteen-year-old Gerald (Jerry) Gault, was arrested for a complaint that was made that he made a lewd telephone calls. After the court hearings that took place in front of a juvenile court judgeRead More Preferential Treatments in Juvenile Justice System.816 Words   |  4 PagesChapter 15 in the textbook focuses mainly on juvenile justice. There are many subtopics under this chapter however, there was one topic in particular that attracted my interests. This topic was also touched on several times in the discussions board and it is the Preferential Treatments in Juvenile. These controversial treatments were specifically created and developed with a child’s best interests as a primary objective. The concept of this was introduce from the philosophy â€Å"parens patriae† whichRead MoreJuvenile Rights1125 Words   |  5 PagesJUVENILE RIGHTS 1 Juvenile Rights Kimberly Burrows CRJ 301 Farrell Binder April 11, 2011 JUVENILE RIGHTS 2 Juveniles have different rights at the time of arrest then adults have. There are also additional protections for juveniles that adults don’t have. In this paper I will compare and contrast the additional protections afforded to juveniles as compared to adult offenders, I will discuss a juveniles rights at the time of arrest, and my opinion on whether or notRead MoreJuvenile Rehabilitation: Adult Prison vs. Juvenile Incarceration1703 Words   |  7 PagesJuvenile Rehabilitation: Adult Prisons vs. Juvenile Incarceration Maureen Fries-Labra English 122 Anna Hopson December 14, 2009 Juvenile Rehabilitation: Adult Prisons vs. Juvenile Incarceration The criminal justice system has a branch for juvenile offenders. Established in the early twentieth century; it is the responsibility of this division to decide the fates of youthful offenders. This is administered by family court with support of social workers and family. With the increased numberRead MoreThe On The Juvenile Justice System Essay1236 Words   |  5 Pages I would request that Senator Perkins vote against the proposed amendments to the Juvenile Act. Part A Although public safety is both a legitimate and justifiable concern, the proposed changes to the purposes clause would go against the primary purpose of the juvenile justice system, rehabilitation and treatment as opposed to punishment. During the 19th century, the American legal system tended to treat juveniles who violated the criminal law much as it did adult offenders. Consequently, if courtsRead MoreJuvenile Court Essay1138 Words   |  5 PagesThe first juvenile court was established in Illinois in 1899. In the late 18th century children as young as seven could stand trial in criminal court and could be sentenced to prison or death. The perception of children was later changed and they were viewed as persons with undeveloped moral and cognitive capacities. This allowed the state of Illinois to intervene in the lives of children providing protection and care or supervision. The mission to help children in trouble was clearly stated in theRead MoreJuvenile Vs Juvenile915 Words à ‚  |  4 PagesJuvenile v. Adult Corrections Juvenile delinquents use to not face police or a correction system, only the fear and punishment of their families. However, as the juvenile delinquents aged they were faced with harsher punishments, but it was not until the 1800s reformers started looking for ways to teach values and built asylum and training schools. Then the concept of parens patriae occurred to establish the right to intervene in a child’s life when there were issues (Siegel, 2016). The next major

Learning & Communicating Online-Free-Samples-Myassignmenthelp.com

Questions: 1.Why is it important to me as a tertiary learner to use credible sources in my academic research and writing? 2.Why is it or will it be important to me in my career to use credible sources in my professional research and writing? 3.Compare the relative merits of two (2) sources about the same issue or topic that you have located, one with greater credibility than the other (e.g. a journal article vs a social media post). In your comparison you are to briefly explain. Answers: 1.A credible source is one where the credibility of the work is established by means of well-known authors, academic databases and reliable and high quality recently published work. In academic research and writing, it is extremely important to use credible source because the person reading the paper must be convinced that reliable information has been provided and the claim provided in writing is correct. Use of such resource is useful for tertiary learner as it enables them to acquire validated knowledge and strengthen their concept about any subject. The process of engaging in search work to get credible resources helps learners to enhance the quality of their paper as well as develop the confidence that they are acquiring correct and validated knowledge about any topic (Ary et al., 2013). Use of credible source is also necessary to fulfill the expectation of tutor or examiner and demonstrate that honesty and rigour has been maintained in writing. The perspective or input of an academic writer gets value when they support it with credible sources. Use of relevant and credible source is an example of bring forward multiples perspective in argument and providing ones critical analysis on the sources. Such work are appreciated and accepted as it ensures that no personal opinion has been provided and work has been backed up by using anecdotal evidence (Brodsky, Griffin Cramer, 2010). It can be concluded that effectively using credible sources in a paper enables the tertiary learner to develop strong and persuasive arguments and come to a valid conclusion regarding a topic. 2.The skill of identifying and using credible source can be useful for students when they enter professional research writing profession where they need to prepared their own research paper or thesis. Such skills make their work easier and help people to develop a strong background for their research paper. The focus on incorporating credible source of information ensures that the professional work is easily accepted by target body on account of validity and reliability of the work (Costley, Elliott Gibbs, 2010). The skill of using credible source in writing will act as an asset for those people who are going to establish their professional research writing career. Such resource will have a huge impact on the research document prepared by the professional researcher. Such research papers are representative of a high quality research that reviews past research and evaluates them to identify gap or strength for new research topic (Tracy, 2012).While the citation of credible resource has the advantage of strengthening research argument and increasing the validity of the study, the use of non-credible source destroys the reputation of person as a professional writer. They dilute the argument and credibility of the work. This may lead to negative consequence for professional research writer as their paper might not be accepted. In contrast, the use of credible resource will enhance trustworthiness and authenticity of work (Bryman Bell, 2015). Hence, it is recommended that students who are aspirin g to enter into professional research writing profession must use credible source to minimize all threats to acceptability of their work. 3.The difference between the credibility of two source can be understood by the below mentioned example. In response to the topic of role of social media communication on brand perception, two sources have been identified. The first one is a journal article obtained from Google scholar and another source is an article taken from a website. The first source, a journal article by Schivinski Dabrowski, (2016) examines the effect of social media communication on consumer perception of brand. The second source also discussed about the role of social media on brand image (Singh, 2017). However, despite writing on same topic, the first source is considered a credible source whereas the second source is considered a less credible source. This is because of the differences in the article on the following points. Firstly, Schivinski Dabrowski, (2016) is an article taken from the journal of Marketing Communication which is a validated source where well-known and established researchers publish their journal. It is a double-blind peer-review journal where the credibility of the journal has been evaluated by the reviewer. Hence, it is a credible source. However, the article by Singh, (2017) is not a credible source because there is no evidence of reviewing the article neither it has been taken from credible academic source. The authors credibility is also not well-established. Another important factor that makes article by Schivinski Dabrowski, (2016) a credible source is that whole article has reference and relevant citations to prove their point. However, in case of the website article by Singh, A. (2017), no reference has been provided to support the statement. The first article is a credible source because it gives unbiased information fully based on real research with participants. However, in case of website article, there are chances of biasness as it is a personal opinion References Ary, D., Jacobs, L. C., Irvine, C. K. S., Walker, D. (2013).Introduction to research in education. Cengage Learning. Brodsky, S. L., Griffin, M. P., Cramer, R. J. (2010). The witness credibility scale: An outcome measure for expert witness research.Behavioral sciences the law,28(6), 892-907. Bryman, A., Bell, E. (2015).Business research methods. Oxford University Press, USA. Costley, C., Elliott, G. C., Gibbs, P. (2010).Doing work based research: Approaches to enquiry for insider-researchers. Sage. Schivinski, B., Dabrowski, D. (2016). The effect of social media communication on consumer perceptions of brands.Journal of Marketing Communications,22(2), 189-214. Singh, A. (2017).Role of Social Media In Building The Brand Image | Digital Seo Guide.Digitalseoguide.com. Retrieved 9 December 2017, from https://www.digitalseoguide.com/social-media/role-of-social-media-in-building-the-brand-image/ Tracy, S. J. (2012).Qualitative research methods: Collecting evidence, crafting analysis, communicating impact. John Wiley Sons.

Shakespeares King Lear Essays (1851 words) - King Lear, Goneril

Shakespeare's King Lear Shakespeare's King Lear Shakespeare's tragedy King Lear is a detailed description of the consequences of one man's decisions. This fictitious man is Lear, King of England, who's decisions greatly alter his life and the lives of those around him. As Lear bears the status of King he is, as one expects, a man of great power but sinfully he surrenders all of this power to his daughters as a reward for their demonstration of love towards him. This untimely abdication of his throne results in a chain reaction of events that send him through a journey of hell. King Lear is a metaphorical description of one man's journey through hell in order to expiate his sin. As the play opens one can almost immediately see that Lear begins to make mistakes that will eventually result in his downfall. The very first words that he speaks in the play are :- "...Give me the map there. Know that we have divided In three our kingdom, and 'tis our fast intent To shake all cares and business from our age, Conferring them on younger strengths while we Unburdened crawl to death..." (Act I, Sc i, Ln 38-41) This gives the reader the first indication of Lear's intent to abdicate his throne. He goes on further to offer pieces of his kingdom to his daughters as a form of reward to his test of love. "Great rivals in our youngest daughter's love, Long in our court have made their amorous sojourn, And here are to be answered. Tell me, my daughters (Since now we will divest us both of rule, Interest of territory, cares of state), Which of you shall we say doth love us most? That we our largest bounty may extend where nature doth with merit challenge." (Act I, Sc i, Ln 47-53) This is the first and most significant of the many sins that he makes in this play. By abdicating his throne to fuel his ego he is disrupts the great chain of being which states that the King must not challenge the position that God has given him. This undermining of God's authority results in chaos that tears apart Lear's world. Leaving him, in the end, with nothing. Following this Lear begins to banish those around him that genuinely care for him as at this stage he cannot see beyond the mask that the evil wear. He banishes Kent, a loyal servant to Lear, and his youngest and previously most loved daughter Cordelia. This results in Lear surrounding himself with people who only wish to use him which leaves him very vulnerable attack. This is precisely what happens and it is through this that he discovers his wrongs and amends them. Following the committing of his sins, Lear becomes abandoned and estranged from his kingdom which causes him to loose insanity. While lost in his grief and self-pity the fool is introduced to guide Lear back to the sane world and to help find the lear that was ounce lost behind a hundred Knights but now is out in the open and scared like a little child. The fact that Lear has now been pushed out from behind his Knights is dramatically represented by him actually being out on the lawns of his castle. The terrified little child that is now unsheltered is dramatically portrayed by Lear's sudden insanity and his rage and anger is seen through the thunderous weather that is being experienced. All of this contributes to the suffering of Lear due to the gross sins that he has committed. The pinnacle of this hell that is experienced be Lear in order to repay his sins is at the end of the play when Cordelia is killed. Lear says this before he himself dies as he cannot live without his daughter. "Howl, howl, howl! O, you are men of stones. Had I your tongues and eyes, I'd use them so That heaven's vault should crack. She's gone for ever! I know when one is dead, and when one lives. She's dead as earth. Lend me a looking glass. If that her breath will mist or stain the stone, Why, then she lives." (Act V, Sc iii, Ln 306-312) All of this pain that Lear suffered is traced back to the single most important error that he made. The choice to give up his throne. This one sin has proven to have massive repercussions upon Lear and the lives of those around him eventually killing almost all of those who were involved. And one is left to ask one's self if a single wrong turn

Electronic Toll Collection Essays

Electronic Toll Collection Essays Electronic Toll Collection Essay Electronic Toll Collection Essay A  2. 45  GHz  RFID  System   for  Electronic  Toll   Collection B. Tech. Project by Praneeth  Tammiraju   04007032 Index 1. Introduction 2. RFID in ETC a. RFID – a review b. The actual role c. Technicalities in brief 3. The Reader Design a. The transceiver design b. Circuit description c. The PCB of the reader d. Programmability of the reader 4. The Transponder Design a. Broad Overview b. Redesigning rectifier 5. Communication Protocol 6. Conclusion 7. References 2 3 3 3 4 6 6 7 9 9 11 11 11 13 14 15 Introduction Tolling on roads and highways today is done mostly on a manual basis i. e. vehicles stop at a check gate and the toll is collected manually by authorized personnel. This poses a lot of problems such as traffic congestion, inefficient use of human resources, vast amount fuel and time wastage apart from, of course seeming very primitive in today’s world of automation. There are already methods in practice that attempt to automate the whole pr ocess. Systems that use installed video cameras that scan the license plates of the vehicles to identify the vehicles and initiate the tolling process are a viable solution but with their own problems in execution – the most important being the logistical diversity in the nature of vehicles which makes a universal protocol impossible. In this context, RFID puts forward a very efficient solution to the automation problem in the case of electronic toll collection. This document discusses the use of RFID in Electronic Toll Collection. It discusses the requirements of such an pplication and how RFID systems should be customized to meet these needs. It describes a circuit for the transceiver at frequency 2. 45 GHz and its interfacing with a computer. A brief note about the specifications of the antenna used and an introduction to the transponder design are made. 2 RFID in ETC RFID – a review The basic working of an RFID is well described in Fig. 1 below. Fig. 1: Schematic of an RFI D system [1] The actual role Given this background of RFID and its working, its application in toll collection becomes obvious. The use of RFID in tolling can be explained simply with the analogy of pre-paid mobile phone users. Every mobile phone user pays a certain amount of credit amount and gets a calling card. Now, whenever he makes a call, the stipulated amount of call charges is deducted from his credit amount. This is the basic idea of electronic toll collection. Vehicle owners pay some credit amount and get an RFID transponder or tag on which information as to the vehicle identity and credit amount is coded. This tag is stuck on the vehicle itself. Whenever the vehicle crosses a highway toll gate where RFID transceivers or readers are installed, the vehicle is identified with the help of communication between the readers and the tag and the information is passed onto the centralized network and database from where the toll amount is deducted. Ideally, this is a perfect remedy for manual toll collection where complete automation is possible. Still for purpose of policing and legal issues, video cameras can be installed for video confirmation of the vehicle and some personnel can be appointed to supervise the processes. 3 Fig. : Electronic Toll Collection [2] An improvement in this system could be if this installation is made in two stages i. e. if two gateways are installed some distance apart so that when a vehicle passes through the first gateway the tolling process is initiated and the toll deduction is confirmed at the second gateway whereby a check gate can be opened thereby enabling law enforcement and automation. Technica lities in brief The technical issues involved in building the above described system are [3]: The RFID reader at the gateway The RFID tag on the vehicle Proper communication between the above The network connectivity The RFID reader The RFID reader must be equipped enough to perform functions such as initiating information exchange with the in-vehicle tags and with the central database network simultaneously. This typically asks for an RF transceiver connected to microcontroller which is in turn connected to a computer interface. The detailed discussion on its design features is made ahead in this document. The RFID tag The RFID tag that is present inside the vehicle will preferably be an active tag i. e. it carries an on board power source like a battery. It also carries enough memory on it to store the identification information of the vehicle. Also, read-write capabilities must both be present on the tag. 4 Communication between the reader and the tag Electronic Toll Collection has as its primary objective the unobstructed passage of vehicles through the gateway. This implies the information exchange that needs to take place between the reader and the tag must occur even the vehicle speeds are of the order of nearly 80 kmph especially when the vehicles pass from a good distance of nearly 5 m – 8 m from the reader. This necessitates fast data transfer between the reader and the tag, typically of the order of 1 – 2 Mbps. At the same time, the open spaces usually encountered on highways minimize the trouble of obstructions in the line of sight. Under these conditions, a system that operates in the microwave region seems most conducive. The ISM band around 2. 45 GHz serves this purpose. Thus, the system to be discussed in this document is designed to be operational in the range of 2. 45 GHz. There is no standard protocol that is used universally in RFID applications in the range of 2. 5 GHz. Still, on studying the various automatic toll collection systems in place, it is understood that the IEEE standard 802. 11 could be used for the information exchange between the reader and the tag. The network connectivity The reader collects the data from the tag and it must then coordinate with the centralized database through a perpetual network so that toll deduction procedure is completed without g litches. This requires credible and fast network systems that offer similar data transfer rates so as to enable the passage of the vehicle without delay. The speeds of the network can, of course, be traded off with the distance between the two stages of the toll gateways. In cases of network failure, a backup buffer memory for the transactions must be present at the reader itself. Among the four critical technical issues mentioned here, this document describes in detail the RFID reader design. 5 The Reader Design The reader design can be broadly divided into two parts – the actual transceiver design and its interfacing with the computer through a serial port like MAX32 protocol. Here, only the transceiver design is concentrated upon while a diagram describing the interfacing with the computer is provided. The transceiver design This document describes the design of the transceiver made by the use of the industry-range chip CC2511f8 – an RF transceiver chip from Chipcon (now from Texas Instruments). This chip is chosen so as to enable RF communication at 2. 45 GHz and also because it suits our needs of data transfer speeds and power consumption. Fig. 3: Transceiver circuit using CC2511f8 [4] 6 Circuit description [4] The three most important parts of the circuit to be described are the biasing resistor, the RF impedance matching circuit and the USB connectivity circuit. The biasing resistor The resistor R271 is used to setup a biasing current accurately. The RF impedance matching As seen from the pins RF_N and RF_P, the impedance of the antenna circuitry must be Zout = 80 + j74 ? This is taken care of by the balun circuitry. The USB connection The resistors R262 and R263 near the pins DP and DM are used for impedance matching and the resistor R264 is used as a pull-up resistor. This resistor must be tied to the voltage provided by the USB bus itself. The typical values of the various elements used in the circuit are given below in Table 1. An important note should be made about the decoupling capacitors at the power source. Their values and placement very close to the supply is a critical issue in the performance of the reader. The antenna [5] The diagram shows an alternative solution for the antenna as a folded dipole PCB antenna as opposed to the shown 50 ? antenna. The characteristics of that antenna are given in the tables and figures to follow. 7 Table 1: Values of the components used in the circuit [4] Fig. 4: Folded dipole antenna circuit [5] Table 2: Folded Dipole properties [5] Table 3: Dimensions of the antenna [5] 8 The PCB design of reader Given below is a simplified design of a PCB which is ready to be plugged directly into computer through a USB connection. There were quite some issues faced in the design of this PCB which ideally should have been done in many layers to reduce the size and ease the physical utility. Considering experimental and laboratory utility, the physical dimensions of the PCB have been bloated and hence, the whole circuit has been accommodated in just two layers with the bottom layer being a complete ground plane. The commercial availability of the capacitors and inductors of the specified values and size was a major concern and hence, some minor modifications have been made while designing the PCB. Despite such extensive care taken to relatively ease this PCB’s manufacturability, physically making this PCB is still a tough job given the acutely narrow connections and dense packing of elements on the board. Programmability of the reader The reader consisting of CC2511f8 has some unique programming features such as direct programmability from a computer via USB connection. However, it needs a programmer/evaluation kit and a software named SmartRF from TI. If once programmed initially, the given circuit can then be used as a dongle for all information exchange with a computer. The programming is rather simple given the on-board microcontroller being an adapted version of 8051. Also, the chip provides elaborate programmability thanks to the various components like ADC, USB connector, I/O devices etc. eing on-board and controllable. The reader could have well been made of CC2500 which doesn’t have an on-board microcontroller and hence can be programmed via an external microcontroller in a much simpler fashion. However, this typically increases the complication of the circuitry and necessitates the usage of external components. This greatly limits the functionality of the reader. The USB connectivity is also greatly handicapped in such systems. Most importantly, though the initial costs of the reader with CC2511f8 are high due to the ost of the programmer, in the long run or for manufacturing purposes, it proves to be much cheaper than a reader with CC2500 and an attached 8051 microcontroller. 9 Fig. 5: The 2-layer design of the USB connectable reader using CC2511f32 Fig. 6: PCB layout and dimensions of the antenna 10 The Transponder Design Broad overview The design of the transponder is dealt in brief over here concentrating on the essentials. Its basic architecture is described vividly in the figure given below: Fig. 7: Transponder architecture [6] Redesigning rectifier Typically, it is expected to use an active tag for toll collection purposes as fast data rates and long ranges are mandatory. However, if we can have a good rectifier with high efficiency, passive tags can be a good option too as they would then make the whole system cost effective. An effort to throw light on one such possibility is made in this document. Consider the following rectifier design: Fig. 8: Rectifier design [6] 11 This rectifier has been tested for an efficiency of 37% [6] and thus, it makes it very much possible to use passive tags in the design of transponders for electronic toll collection. This design has added advantages of providing the possibility to predict the input power in order drive a specific DC current at a specific DC voltage. There is a lot of scope for further work on this architecture to specify the exact design of the transponder in the later stages of this project. 12 Communication Protocol The electronic toll collection systems use the back-scattering modulation techniques to establish tag-reader communication. This is achieved essentially by varying the reflection coefficient at the rectifier input. The reflection coefficient can be varied both in its amplitude and in its phase. Thus, both ASK and PSK are possible. In ASK the input impedance is switched between the matching and the reflecting values whereas in PSK the impedance reactive part it switched between two complex conjugate values [6]. Both ASK and PSK have their own advantages and disadvantages and their choice is a strict trade-off between the power used by the tag for its operations and the power reflected in back-scattering for communication with the interrogator. In order to accomplish multi-lane tolling, we need to ensure that anti-collision algorithms are in place. Usually TDMA protocol with Slotted-Aloha procedure is effective in road-tolling systems. 13 Conclusion This document has discussed a design of the 2. 45 GHz RFID system for the use of toll collection. The complete design of the reader is now ready to be built and tested and for the transponder, a design for an active tag was studied and a new design using the mentioned rectifier for a passive tag is proposed. The prime challenge in taking this project ahead would be the programmability of the new chip that was discussed as it requires a completely new programmer tool different from its previous RFID semiconductor counterparts. Alternate designs using the older chips can be accomplished but the cost and size reduction and the efficiency one can achieve with this CC2511f32 make the installation of the new programmer worthy for any scale of manufacture larger than laboratories. 14 References [1] O. Shoewu and O. Badejo, â€Å"Radio Frequency Identification Technology: Development, Application, and Security Issues† Pacific Journal of Science and Technology, Volume 7, Number 2, November 2006. www. akamaiuniversity. us/PJST7_2_144. pdf [2] www. quatech. com/applications [3] www. freepatentsonline. com/6639509-0-large. pg [4] Datasheet, â€Å"Low-Power SoC (System-on-Chip) with MCU, Memory, 2. 4 GHz RF Transceiver, and USB Controller†, CC2511f8, Texas Instruments. [5] Design Note, â€Å"Folded dipole for CC25xx†, DN004, Texas Instruments. [6] Jari-Pascal Curty, Norbert Joehl, Catherine Dehollain, Michel Declercq, â€Å"A 2. 45 GHz Remotely Powered RFID System†, Research in Microelectro nics and Electronics, 2005 PhD, Volume 1, 25-28 July 2005 Page(s):153 156 vol. 1. [7] U. S. Patent: Woo et al. , Dual Mode Electronic Toll Collection Transponder, U. S. Appl. No. 11/409,897, filed Apr. 24, 2006. [8] U. S. Patent: Tang, RF Transponder with Electromechanical Power, U. S. Appl. No. 11/054,520, filed Feb. 9, 2005. [9] U. S. Patent; Tang et al. , Method of Enabling Two-State Operation of Electronic Toll Collection System, U. S. Appl. No. 11/437,236, filed May 19, 2006. [10] Sabri Serkan Basat, â€Å"Design and Characterization of RFID modules in Multilayer Configurations†, etd. gatech. edu/theses/available/etd-11202006124610/unrestricted/basat_sabri_s_200612_mast. pdf [11] IEEE Standard 802. 11b-1999 R(2003) http://standards. ieee. org/getieee802/download/802. 11-1999. pdf 15

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THE BEST essays Flibbety is a very cold region with lot of tree-covered mountains and a lake. The men in this area hunted goats on top of the mountains while others were scouts who kept track of the goats. Some of the men fished in the lake and supplied fish to the area. Some men were lumberjacks who provided wood for building houses and keeping warm. A small group of men organized all the work of the area and were considered to be leaders. There were also medicine men and holy men. The women were usually housewives. Some of them went hunting with their husbands, but that was very rare. Others helped their husbands and sons in farming. When a work needed to be done, all the people would get together and finish it together. The people of this area worked as a group rather than individually. Most of the Flibbetanians lived in log houses since there were plenty of trees available. The leaders lived in brick houses, but they were small in number. There were no poor people in the country because everyone shared the work and the fruits of the work. The houses usually had a small kitchen, a fireplace, a living room, and two bedrooms. The brick houses usually had a regular sized kitchen, two fireplaces, a living room, and four bedrooms. Clothing of the Flibbetanians was very simple. Men wore long sleeve shirts and pants with belts to hold the tools and weapons. They made jackets out of goat skin which kept them really warm through the harsh, cold winter. The women usually wore pants and long sleeve shirts like the men. Sometimes they wore dresses. They only wore their dresses on special occasions. The Flibbetanians faced several hardships in living on mountainous terrain. The hunters had to get past the huge lake midway up the mountain. They used boats to cross the lake and go up the mountain. Sometimes they got lucky and found a goat before getting to the lake, but that was rare. Children would die because of diseases no one knew how to cure ...

Bare Bone Analysis Essay Example | Topics and Well Written Essays - 750 words

Bare Bone Analysis - Essay Example This is augmented by the partial dilatation which results in a sufficient opening to permit the fetus to descend into the pelvic canal. Furthermore, the patient undergoes premature progression and formation of myometrial gash junctions, in addition to inflammatory mediator enthused contractions. The other pathophysiology effect is atypical placental implantation and augmented ligamental laxity that results in back pain (Chao, et al, 2011). Physiology A normal physiologic scenario is one that is affected by innate human capability of the mother and fetus. Unlike in this scenario, Braxton-Hick or pre-labor contractions normally subside with rest or fluids and do not thus transform the cervix during actual labor contractions do. The mucus plug which keeps the cervix closed is lost, since the body facilitates the uterus contraction. Aches and provisional quick groin pains occur due to gentle straining of the ligaments attached to the pelvic bones, plus lower back. In addition, oxygen sup ply during labor is normally reduced due to interferences of supply of oxygenated maternal blood to placenta by the contractions (Kaimal, et al, & Cheng, 2011). There is also an increase in maternal blood supply, couple with lowering of systemic vascular resistance from blood vessels due to mounting intensity of hormones. Thus, cardiac output increases considerably leading to a decrease in blood pressure. Renal clearance is usually elevated resulting in lower-than-normal serum levels from renal markers referred to as blood-urea-nitrogen and creatinine (Kaimal, et al , & Cheng, 2011). Predisposing Factors There are numerous predisposing factors that could have led to Patience condition. First, the fact that she lost two previous pregnancies to first trimester miscarriages exposed her to preceding second-trimester dilation and evacuation, in addition to uterine anomalies like outsized fibroids and mullerian abnormalities. Second, Patience could have gone through short inter-pregnancy timeline of less than six months, considering that she may possibly have had a cervical injury, cervical insufficiency, diethylstilbestrol, or previous cervical surgery. Therefore, the premature effacement or shortening of vaginal section of Patience cervix and dilation could be due to structural weakness in her cervix) exposure, and anatomic abnormalities of the cervix (Maloni, 2012). Thirdly, fetal abnormalities or even untimely placental separation could be a causative factor, and are thus making the abruption. Other features could be demographic factors given that previous studies reveal that nonwhite races have a high probability of preterm birth, especially in Black race (Maloni & Damato, 2004). The concerns about anemia could possibly imply existence of uteroplacental insufficiency, such as hypertension, and this brought about trichomonas condition. Furthermore, she could be having low pre-pregnancy weight and body mass index, and her prenatal care was not as continuous or no ne at all. Others include, grave maternal infections like, urinary tract infection, placenta previa, bacterial vaginosis or intrauterine growth constraint. Moreover, hormonal changes especially mediated by maternal and fetal stress could also be a factor (Chao, et al, & Leven, 2011). Treatment Modalities Treatment modalities can begin with offering Patience prophylactic pharmacologic therapy, so as to extend her gestation and decrease her chances of getting respiratory distress syndrome or even intra-amniotic infectivity. Medicines are