Computer Dynamics

I. Computer Dynamics Computer Dynamics is a microcomputer software development company that has a 300-computer network. The company is located in three adjacent five-story buildings in an office park, with about 100 computers in each building. The current network is a poorly designed mix of Ethernet and token ring (Ethernet in two buildings and token ring in the other). The networks in all three buildings are heavily overloaded, and the company anticipates significant growth in network traffic. There is currently no network connection among the buildings, but this is one objective in building the new network.Describe the network you would recommend and how it would be configured with the goal of building a new network that will support the company’s needs for the next 3 years with few additional investments. Be sure to include the devices and type of network circuits you would use. You will need to make some assumptions, so be sure to document your assumptions and explain why you have designed the network in this way. Assumptions: The two buildings with Ethernet are wired with at least Cat5e cabling and all wiring is run back to a central closet on each floor to a data switch.To connect the floors in the building a fiber cable is run between the closets to connect them to each other, a chassis based switch with a router module installed, and the local service providers WAN. Rewire the building that has Token Ring to at least Cat5e cabling, Token Ring will not be able to withstand the network load or the anticipated network traffic growth. Install a chassis based switch with router modules installed and fiber ports to connect this building to the newly designed backbone.Chassis switches are robust and scalable; they will survive the demands of the network for the next 3 years. Connect the three building via the chassis switches using fiber from building to building and a dedicated point to point circuit to the service provider’s WAN. This will allo w the three buildings to share resources across the network, communicate with each other through the network, and share applications across the network. Install a DHCP server to issue IP addresses to the computers on the company’s networks so they will recognize that they are a part of the same network.

Managerial communication

Interpersonal skills. An example of a barrier to effective listening is inattentiveness. This is a barrier because there is more concentration on the speaker's delivery rather than on the message. Background noises also play a part to inattentiveness as it is distracting. For instance when I was working as a waitress at a restaurant I served a large family, which placed a large order of 3 different pasta dishes, one with cheese and the rest without, and 6 pizzas with different toppings and sizes and one with no mushroom ND another with extra olives.Due to my inattentiveness, I failed to place the correct order to the kitchen. Instead I gave them 3 pasta dishes all with cheese and one pizza with extra mushrooms and the other with no olives. In the future I could improve my listening skills paying full attention to what is being said and also by double checking the order with the recipients in order for certainty. Emotional intelligence is a person's ability to recognize and use emotio ns.It Is a concept that helps to understand human communication. It can also be described as relevant to the accurate appraisal and expression of emotion In oneself and In others, the effective regulation of emotion in self and others, and the use of feeling to motivate, plan, and achieve In one's life (Salvoes & Mayer,1990). Leary et al describe emotional Intelligence as a precise awareness of emotion In self and others, an absorption of emotion to ease thought and an understanding of emotion.For Instance there was a time where I failed to reflect emotional Intelligence when my rope leader approached me about complaints that were made about my behavior and attitude. The confrontation made me defensive which made me react by attacking other group members and ask for clarification.

Tesco Advertisement Analysis

Advertisement analysis –Tesco’s 1097 We humans are programmed or born with the inherent desire to satiate our needs. Freud talked of this primitive libido, this innate need of humanity to want (perhaps for self-preservation ultimately. ) Freud argued about the importance of the unconscious mind in understanding conscious thought and behaviour . Advertising has tapped into this primitive human libido or want desire.Advertisers use the unconscious mind to foist implicit and explicit signs and signifiers, applying cultural connotations, employing exclusion as much as inclusion, the advertiser’s intention is to gain a proliferation of positive attention for their product. I have selected an advertisement made for Tesco’s ‘Fair-trade fortnight’, found in The Guardian’s weekend supplement. We read adverts as a whole, unconsciously absorbing all of the elements, signs, implicit and explicit, that are designed to work in unison.The mental short -hand we use for deciphering pictures and words to decode them, which is especially pertinent to advertising, immediately informs us that the advertisement is not for pleasure, but for our attention; to encourage us to choose one brand over another, and to consume. Tesco’s advert implicitly implies nature’s bounty with its visual choice of hessian and wicker staging, the use of cardboard for the pricing tickets suggestive of company ethics imbued with moral high-ground.The foreground is awash with pictorial suggestions of far-off fields and farming, with healthy, working age, seemingly relaxed workers, enjoying their tasks in the sun. The advert presents what we in the West would consider every day luxuries. The visual signifiers of consumable pleasure: bananas, coffee, chocolate, nuts; these are all food stuffs that cannot be produced in Britain. Freud’s theory of the Id would tap into our want of these luxuries. The future consumer, having seen the product, ma y acknowledge the want, and convert it into a reality, quenching (Freud’s theory of) the Ego.Utilising this want the advert infers that via fair-trade, the consumer is able to go further afield for this produce, enabling the want without moral reproach; not only can the human have what it desires, but it can achieve it without guilt, assuaging (Freud’s theory of) the Superego and its connotations of the punitive. Tesco’s advert plays on this wish-fulfilment that drives the human in its quest for quelling desire. In very large type, mimicking handwriting, he title of the advert shrieks Every little helps, playing on the loyal fan bases need to spend little, but likely, (with the fair-trade theme of the advert) to be an explicit enticement for a more affluent customer experiencing financial strain, to switch from the more high end supermarkets to a more basic and affordable one. The main body of the advert is fairly utilitarian; implicitly signifying that this is a necessity buy, an advert with a more glamorous look is often aimed at the encouragement or stimulation of consumption of a luxury purchase.A secondary heading of Fair-trade fortnight uses alliteration to make it a memorable tag-line. The advert has a (relatively small) label icon, imploring the consumer to show off their label. This provides the function of anchoring the implied ethic with imagery, suggests that whilst indulging in wish fulfilment we can improve the plight of our third world neighbours. This is secondary to the advertisers aim though, the intention is to sell.This advertisement seems aimed at a predominantly white population, it almost romanticises the areas of food production that have, until recently, been visually and consciously concealed. Tesco’s original ‘pile it high and sell it cheap’ stance had affects elsewhere on food producers further down the chain, but of course these were silent until relatively recently and the public are now be ginning to recognise that a small monetary cost to buy, leads to exploitation in unseen societies elsewhere. Tesco’s has chosen a very natural packaging style for this advert, eschewing its usual cheaper less environmental counterpart.Aspiration is represented within the advert and the packaging, as the ethics of food is seen to be grounded in the middle-classes, (a non necessity, therefore first taking hold within the wealthier citizens). It’s notable that emblazoned in red, 20% off in a disproportionally large circle, the advertiser’s ace card, utilising the subliminal; humans notice red for obvious physiological reasons. Beneath it also swathed in scarlet a loyalty device, Keep earning club points, promoting a new buying habit for residual customers, and hoping to retain new and more affluent consumers.As food production awareness gathers momentum the company has to redirect its approach to continue to flourish. To replace Tesco’s old persona with a ne w more ethically aware substitute, maybe a much needed new PR strategy. Openly presenting their increasing awareness and support for fair-trade, but veiling the capitalist strategy, behind the promotion must surely be statistical evidence that fair-trade purchases in Britain are on the increase. Tesco’s may be watching these changing retail trends and thinking it is a very good time indeed to promote a more ethical persona.Tesco’s has recently been dragged through the politicisation and higher public awareness of the food industry, its origins and ethics. This heightened awareness culminated in a tactic by protestors, mocking the Tesco’s logo, reproducing it onto t-shirts, but replacing Tesco with Fiasco. In the public domain there exists such proselysatizations as a Face Book group, actively encouraging the public to boycott Tesco’s stores. Gillian Rose says that ‘the rendering [of an image] is never innocent. She discusses whether the meanings of an image may be presented ‘explicitly or implicitly, consciously or consciously’ . Our reaction to an image is likely to be informed by the cultural implications associated with that image, and the connotation it conjures within our understanding. In Fyfe and Law’s work they state that we must enquire into a visualisation’s provenance, and note its principles of inclusion and exclusion in order understand it. Therefore I end my piece about Tesco’s campaign with this fact from Tesco’s PLC (website).In the five year summary report the graph clearly shows that each employee generates ? 14,303 million pounds, (2010). This fact is not advertised by Tesco’s, and is as inexplicit as possible. It would be a fair appraisal to state, should Tesco’s customers be consciously aware of the profit margins they may be less comfortable shopping there. Bibliography Sigmund Freud, The Interpretation of Dreams Gillian Rose, Visual Methodologies Jon athan Bignell, Media semiotics http://www. tescoplc. com/plc/ir/, accessed 20-03-11 8 June 2010 20. 13 BST, accessed 10-03-11 , accessed 16-03-11

Labor Relations Essay Example | Topics and Well Written Essays - 1750 words

Labor Relations - Essay Example Acknowledgements I would like to thank my professors and all my seniors who have continuously assisted me with the project providing with suggestions and advices as well as sources from where I could take help from. I would also like to thank my peers who assisted me with the drafting and presentation of the report. 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‚¬ ¦.5 2. Abu Dhabi Media Company: An Overview†¦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 3. Human Resource Management at Abu Dhabi Media Company†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.7 3.1. Company’s Employment Contracts and Relations†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.7 3.2. UAE Labor Law and Abu Dhabi Media Company†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦8 4. Trade Unio n and Abu Dhabi Media Company†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..9 4.1. Trade Unions†¦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 5. 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‚¬ ¦.11 6. ... Human resource management is the department of an organization that deals with humans or the employees of the organization. The managers of the human resources department are involved with the employment contracts and relations with the employees of the organization. They deal with the hiring of new employees depending on the labor law of the nation in which the company exists. Also, a study on the human resources activities of a company provides with the knowledge of any form of trade union that is followed by the company’s members. The current study focuses on a local company in Abu Dhabi in United Arab Emirates (UAE), Abu Dhabi Media Company, and studies the human resources management of the company focusing on the company’s background, vision and mission, its employment relations and contracts, the implications of UAE Labor Law for hiring new expatriates employees for the company, as well as the nature of the role of trade union in the company if it exists, and unde rstanding the role and benefits of a trade union. 2. Abu Dhabi Media Company: An Overview: Abu Dhabi Media is one of the media companies in the Middle East located in Abu Dhabi in the UAE. Its activities involve multiple functions performing in different platforms of the media. More than 20 brands of the media are managed by the company and these include television, radio, publishing, games, digital media, printing, as well as other broadcasting media. There are a number of subsidiaries working for the organization that include leading companies in the field of media like Imagenation Abu Dhabi, LIVE, United Printing Press (UPP) and others. The three main divisions performing the functions for the company are the Broadcast, Publishing, and the Digital Media.

Recent Trends In the Historiography of Soviet Russia since 2004 Research Paper

Recent Trends In the Historiography of Soviet Russia since 2004 - Research Paper Example This led to the acceptance of the more extensive anti-soviet traditional western account by a majority of the Russian scholars2. Andrei Sakharov indicates that, currently, the russian historical science is vibrant, dynamic and discussive, and is closely associated with global historiography3. These claims seem to be echoed by Kritika in whose pages several informative articles that have, in the recent past, been published to map the evolving ideological constellation of russian histological publications. Mironov argues that, the wall between historical research done in the cities and that done in provinces is diminishing, and so is the wall between Western and Russian historiograhy. Consequently, a community of Russianists is coming into being. In a brief review of the demographics and communication pathway of these lines of thought, Benedict Anderson writes extensively of the school â€Å"pilgrimages,† which encompass the pathways in education that were pursued by â€Å"nati ves† and â€Å"creoles† during the colonial period that gave rise to the notion of a nation in sites4. It is arguable that Russia has become a colony of the west. However, this is optimised by Minorov’s assertion of a progressively more integrated community. In terms of demographics, there are some advancements in the Russian information systems. However, in the post –Soviet era, the prone networks including the science academies and their branches have been eroded and remained only shells. A majority, in the academies, have taken refuge in tertiary institutions, in which they partake in multiple teaching workloads, as a means of survival. Many individuals, in the academic world, are too busy with multi-tasking thus cannot find time to write academic materials. It is evident that many academic institutions are staffed with scientists of a retiring age. Moreover, not many young people find jobs in the academic field to be alluring. Consequently, many scient ists are reported to be leaving for better jobs abroad. Another crucial topic is the mode of teaching of history in learning institutions. A critical examination indicates that a social history can have a significant effect, basing on its approach and debates as presented to the lay community, in schools through textbooks and may corrupt the public memory5. Catherine Marridale notes a significant lack of interest for historological studies, majorly among the younger generation and continual widening of the gap between lay and scholarly lines of specialization. She, at the same time, argues on the persistence of a discursive field in which Russian tropes maintain dominance. For schools and textbooks, during the perestroika era, there was a great interest in history. This is accompanied by a sharp decline, as people are immersed in a struggle to survive and deal with the woes resulting from drastic impoverishment. However, Prime Minister Mikhail Kasianov rekindled the public interest in 2001, on the mode of teaching of history, through his concern about the quality of the Russian history books6. As a result, the government indulged in a competition aimed at finding the top three text books to be used in schools. Consequently, the new standardized school

Marketing Plan - XYZ Essay Example | Topics and Well Written Essays - 6750 words

Marketing Plan - XYZ - Essay Example This report will introduce competitor analysis that will focus particularly on the SWOT analysis for this business. At the micro environment the focus is on the economic and social forces and to a minor extent the regulatory forces that prevail at this level; in particular it will be a focus on the patient, client and employee analysis and the importance of these relationships. Patients have come to expect a comfortable and courteous environment provided by empathic staff that stresses the interpersonal dimension of the quality of health care service with higher quality service present to improve clinical outcomes and patient and doctor satisfaction whilst reducing cost and increasing value This discussion declares that at the National level the influences on the practice can predominately be political in the sense that the Government is the regulatory body of medical laws. The Government is also the provider of much of the medical income through its Medicare system, the Medicare system facilitates a higher uptake of all medical services and regulates the rebates returned for those services. This comes about by its funding of Medicare and Department of Veteran Affairs rebate for both private and public patients which is the major source of the practice income as each procedure or consultation provided attracts a rebate. The most predominant force at the meso environment level is the GPs.

War War I Essay Example | Topics and Well Written Essays - 250 words

War War I - Essay Example World War I enhanced democracy through some of the programs and ideas introduced by Wilson. In 1918 he gave a statement that America was fighting for freedom of the seas, open diplomacy, change in colonization and giving the colonized people freedom among other aims. Through the war, America was granted a possibility of changing the American society in line with scientific lines, bringing in national unity and self-sacrifice, and expanding social justice. During the war there was an improvement in the working conditions and an increase in wages. This fostered democracy because it encouraged freedom and justice as people would air their views concerning working hours and other job related issues. World War I undermined democracy in America in various ways. The war was viewed as a crime against the people of America. It caused millions of deaths, many of the victims being the military which was sent to battlefields. Through these numerous deaths, the nations were split and peace was torn apart. The war also introduced various oppressing rules that worked against democracy. Some rules did not allow people to travel freely especially through the seas. The war oppressed the rights of the workers, because their taxes were increased unreasonably, to finance the war. This material provides a lot of information on various matters regarding the World War I and democracy in America. I have learnt that democracy is very important to the society and can be affected greatly by wars. This material shows that it is important and possible to achieve peace without

Leadership Essay Example | Topics and Well Written Essays - 3250 words

Leadership - Essay Example Regarding educational qualification, Mulally pursued his graduation from University of Kansas. He also possesses educational certificates of Master of Science in Aeronautical and Astronautical Engineering. He also pursued Master’s degree in Management and Fellowship from MITs Sloan School of Management (Hoffman, 2012). Alan Mulally began his professional career as an engineer in Boeing. He was also the President of commercial Airplane Development in Boeing. One of the major contributions of Mulally is with regard to Boeing Commercial Airplanes’ (BCA) renaissance against the major competitor Airbus. The renaissance of BCA in 2000 has signified the effective leadership skill of Mulally. Moreover, the effective leadership of Mulally is evident from his contribution to Ford Motor Company. Mulally joining Ford Motor Company has transformed the organisation into one of the leading automakers in the world. He has provided a compelling vision to the organisation as an effective leader. He has also incorporated several strategies in the business process of the organisation that signifies his effective leadership skill (Hoffman, 2012). Alan Mulally started his professional career as an engineer in Boeing. In addition, effectiveness and efficiency he has as an engineering professional in the organisation has led him to achieve several milestones in the professional world. In this regard, one of his assets that greatly assisted him in several milestones is his effective leadership skill. His leadership is also notable as the CEO of Ford Motor Company. Mulally became an effective leader through his collaborative approach of work. Mulally at the beginning of his career at Boeing had shown effective collaborative approach. This has influenced him to be an effective team-man. Moreover, another attribute of Mulally that has influenced him in becoming an effective leader is the accountability in his work process. From the beginning of

Marketing Presentation Report Coursework Example | Topics and Well Written Essays - 1250 words

Marketing Presentation Report - Coursework Example Tele Cinch’s and Blackberry’s core and actual elements and finally compare their distribution and marketing communication strategies from a critical point of view. Furthermore, the report will evaluate whether their strategies are similar or dissimilar to that of each others. Identifying the Products’ Core, Actual and Augmented Elements Tele Cinch 1.0 The innovative designing of the phone has deliberately contributed towards the modernised definition of smart phone devices by providing unique features such as large buttons and long lasting battery power. Furthermore, core elements, such as heating function and speech dialling are especially integrated in the handset to provide convenient facilities to the aged groups that the brand targets the most. Moreover, the brand assures its customers that it is user friendly and easy to use among all other available smart phones. Furthermore, in relation to its distribution operations, it assures to deliver the product wit hin 48 hours at any place desired by the customer. In addition, the brand provides augmented elements like 3 years guarantee to all its products along with a replacement warranty to enhance its customer relationship providing assistance through its technical support team. Blackberry Bold 9900 The brand claims that this actual product is the thinnest smart phone in their product line up. The uniquely integrated ‘Liquid Graphics’ touch screen ensures life time durability to the customers while using its features such as swiping, zooming and pinching photos and videos. A few core elements incorporated in this product are ‘Vlingo’ which enables ‘speech to operate’ facilities that enable the user to use their voice for writing messages, opening applications, setting statuses on Twitter along with numerous other activities. Moreover, the brand claims that its operating system makes it the fastest Blackberry till date (Research In Motion Limited, 2012 ). The Blackberry Bold’s augmented elements are its innovative applications that are available to the user free of cost, its built-in Near Field Communications (NFC) that enables connecting with other NFC enabled devices and the useful accessories that the brand provides for the convenience of the users, such as travel charger, Bluetooth headsets and external battery charger bundle (Research In Motion Limited, 2012). Comparing the Distribution and Marketing Communication Strategy Tele Cinch 1.0: Distribution Strategy The brand uses traditional style of distribution process that include finished products transferring from manufacturers to the wholesaler to the retailer and finally to the end customers (Bucklin, 1965). Furthermore, the brand, at times follows different approaches of skipping the wholesaler and transferring directly to the retailer or skipping both the wholesaler and retailer and selling it directly to the customers. Blackberry Bold 9900: Distribution Strategy T he brand uses various modern approaches while distributing its products. It focuses on partnering with resellers to sell the various products. The products are also sold directly to the c

Media and the phenomenon of child killers Essay

Media and the phenomenon of child killers - Essay Example The gruesome sight of the body of four-year-old Horace Millen at the beach at Dorchester Bay initially led those who had seen it to believe that it was the work of a grown man or an adult. Little did they know that such savagery was the handiwork of a boy barely out of childhood. He was sent to a reform school prior to the incident for beating up younger children and using an astounding degree of unnecessary physical force.When people began speculating about the kind of background this child might have that led him to commit such unspeakable acts of atrocity, one thing that came up was his penchant for dime novels.Sordid tales of killing and violence leapt from the pages of these dime novels, and many believe that these tales emboldened him to commit the crimes himself.From the first example of Jesse Pomeroy, recent history has had its share of child killers and child criminals. There is the Heath High School shooting where Michael Carneal, just fourteen years old, opened fire at a g roup of students praying and killed three female students while wounding five others. Two years later, in 1999, the Columbine massacre took place wherein two teenagers, Eric Harris and Dylan Klebold, killed twelve students and a teacher, and wounded twenty four others, before turning the guns on themselves and committing suicide.Just this year, on April 16, 2007, in Blacksburg, Virginia, a Korean-American by the name of Cho Seung -Hui went on a killing spree that was to become the deadliest shooting rampage in America. After the smoke had cleared, the death count was 32 bodies. Much speculation has taken place as to what might have caused children to behave in this manner. Of course, several factors came into play: mental illness, family background, a history of child abuse, teen-age social stratifications (particularly in the case of Columbine and Virginia Tech) and a host of other factors that contribute to maladjustment. However, ever since the case of Jesse Pomeroy, an accusing finger has been particularly directed towards the media. It has been said that the surfeit of violent images depicted in it that could have triggered psychological responses in the child-perpetrators. Indeed, there is no dearth of cases and examples to prove that there is a causation between media violence and violent behavior. In an article entitled "The Impact of Mass Media Violence on US Homicides", Phillips (1983, p. 560) presented "what may be the first systematic evidence suggesting that some homicides are indeed triggered by a type of mass media violence." Just a year before, he came out with another paper, with the following findings: Violent, fictional television stories trigger imitative deaths and near fatal accidents in the United States. In 19877, suicides, motor vehicle deaths and non-fatal accidents all rose immediately following soap opera suicide stories. The U.S. female suicides increased proportionally more than male suicides. Single-vehicle crashes increased more than multiple vehicle suicides.1 Several years after Phillips came out with his seminal studies, new researchers came out with evidence to support his conclusions. Cornstock2 found "a very solid relationship between viewing anti-social portrayals or violent episodes and behaving anti-socially." Even more compelling, Huesman and Erron3 published a 20-year follow up of 400 children and discovered that heavy exposure to television violence at eight years old was associated with violent crime and spouse or child abuse at age 30 and this is true for all socio-economic levels and for all levels of intelligence. More careful than her predecessors but presenting evidence equally noteworthy, Sheenan4 found that the question of the young being more vulnerable to the effect of media is a complex and difficult one to interpret precisely. The

Network Design for the 2012 London Olympics Essay Example for Free

Network Design for the 2012 London Olympics Essay This report is a step by step analysis of the requirements planning and implementation of a network based on the infrastructure of an office environment. Throughout this report, the reader will see how the requirements planning is broken down into detailed sections to illustrate how each requirement has been identified for the stages of planning to implementation. In the first part of the report, we will be identifying what hardware is required for the scale of the network, taking into consideration a room for future expansion and devices to be added at a later date. The second part of the report will be the identification of software that will be needed to run all services on the network including set-up and configuration of the software. Network Planning Why is a network required? Before actually planning the set-up of a network, the use of a network has to be justified. There are many uses to a network, some of the basic uses are †¢ Sensitive information exchange – information is shared only between departments and/or specific users and not to other people, e. g. customer account information that contains bank information and/or other personal information. †¢ Internal digital mail requests and communication between departments in a business may be increased and messages can be saved for later use. †¢ Resource sharing – information updated constantly is shared from one location and is referenced by other departments and/or users within the same network, e. g. a database of customer details and orders for a company. †¢ File Backup Services – information is backed up or stored in a secure location in the event of future problems and to maintain records of information. There are other uses of networks as well but mainly they are used as a means of security. Within a company, when a network is utilised correctly, the flow of information across a network can be monitored and tracked back to the user. This is essential to ensure no information used within the company is accessed from an outside source or is used in an unlawful manner by a company employee. Scope of the network Since the network is being made for the London 2012 Olympics, we can assume that the network will be of large scale (roughly 500-2,000 users). This means that each service, such as email and DHCP services, will require its own dedicated hardware in order for the resources to be adequately shared without any network latency or slow access experience. If the network is used on a much smaller scale, then the services could run from using only a few pieces of dedicated hardware such as the domain and email services sharing hardware. A site survey should always be performed before installation a network to ensure that wireless signals can be transmitted throughout the building or buildings and to see how the network can be modelled based on the environment it is going to be installed in. Identifying Network Hardware In this section, we will identify different hardware and its uses on a network, how a network is connected and what devices are used to connect a network throughout a company building. Servers and Services There are many different types of services that can be hosted from a server on a network. Many of these services usually have their own dedicated hardware but depending on the scale of the network, the services can easily be bunched together on the same hardware to cut down on overall equipment usage. Domain Server The domain server is used to authenticate users and computers included on the network. It is considered the main access control to a network because it stores all user account information used in authentication. Email Server The email server is used to direct messages to the correct recipient once the message has been processed by the server. Many companies today use a private internal mail system as a way of faster communication within departments. File Server A file server is used to provide users access to information and data across the network. This helps reduce file duplication across different computers on the network. Permissions can be set for file access so that important documentation can be read but not written to or deleted. DNS Server A DNS server is a kind of server that translates DNS names into an I. P address that is used for communication on the internet. DHCP Server A DHCP server is used by hosts to retrieve I. P addresses and other information. Firewall Server A firewall server is used for monitoring the network for vulnerabilities and intrusions and detecting viruses in the event of an attack from the internet. Application Server An application server is used to host applications and make them a part of the network’s resources. The servers are commonly used to save on costs for multiple software licenses compared to a site license. Database Server A database server is used to host a database for access by users. These servers can be updated and viewed. These are commonly used in finance departments or companies that host customer records that needs to be accessed and amended constantly. Network Devices This section will better explain the other devices that make up a network such as the network equipment itself and other devices which can be considered essential to a networked environment. Modem A modem is used to connect an outside line (usually from an internet service provider) via telephone communication to the network enabling internet access or access to another site’s resources. Router A router is a device that forwards data packets between devices on a network and can manage which network node receives certain data rather than sending the same data to each node. Routers can also have their own firewalls. Switch A switch is used to connect segments of a network together. Switches are an important part of a network as they are used to connect multiple devices at once. These switches come in all shapes and sizes, ranging from a simple 2 port switch to a 48 port switch which fits into a server rack. Wireless Access Point The wireless access point is a device that adds wireless connectivity to your network. This type of network device is often used to connect portable devices such as laptops, PDA and Smartphones to the network. It is also used for wireless printers and installing hardware devices to computers where network cabling is not applicable. Network Printer Network printers are printers made available on the network as a resource so that many users can print from one location. This cuts down multiple hardware usage per computer which saves hardware costs and maintenance. Aside from users, all of these services and devices are what make up a network. Connecting your Network: Cabling and Access Points Now that we have outlined what services and devices make up a network, there is the matter of how a network will be connected. There are a few methods of connecting a network, each with its own pro’s and con’s. The standard method of connecting a network is via cable. Cable Connection Cable connection for a network is one of the most trusted methods of connecting users to resources. The reason for this being that wired connections were the first standard and constant communication to be used with computers. Wireless connection is still a fairly new method of communication and is therefore still changing. Types of Network Cables There are quite a few types of network cables that are used today in business, each suited for different purposes. Twisted Pair is a type of copper cabling that is used for telecommunications and most Ethernet networks. There are two types of twisted pair cabling. †¢ Unshielded twisted pair (UTP) – UTP cables have a range of 100 meters and rely solely on the cancellation effect produced by the twisted-wire pairs that limits signal degradation. †¢ Shielded twisted pair (STP) – STP cables reduce electrical noise from within the cable since each pair of wires is wrapped in metallic foil to better shield the wires from noise. Four pairs of wires are then wrapped in a metallic braid or foil. Coaxial cable is a copper-cored cable that is surrounded by heavy shielding. There are several types of coaxial cable. †¢ Thicknet or 10BASE5 – used in networks and operated at 10mbps, maximum length of 500 meters. †¢ Thinnet or 10BASE2 – used in networks and operated at 10mbps, maximum length of 185 meters. †¢ RG-59 – Most commonly used with cable television. †¢ RG-6 – Higher quality than RG-59, with more bandwidth and less susceptibility to interference. A fibre optic cable is either a glass or a plastic fibre that carries light along its length. Fibre optic cable can reach distances of several miles before the signal needs to be regenerated. Fibre optic is more expensive than copper cable and connectors are more expensive and harder to assemble than other connections. Wireless Connection Wireless technology is also a greatly utilised technology in business today even though the reliability of wireless connection does not compare to that of a cable connection. Security There are a few different ways to apply security in a network. Some security protocols may be placed during network design and some protocols when the network is running. Network security during the design During the designing of the network, avoid giving anyone outside the implementation team or network designer any information, such as work plans about the network design or the materials that will be used for the network, which will help Vandals infiltrate or use the network inappropriately. Basic security that should be present in a network 1. Firewall will offer a tougher barrier between the private network and the Internet. Firewalls will prevent unwanted users or hackers from accessing the network. 2. Proxy can be used to provide users a way to connect to the proxy server by requesting authentication from the security service during the exchange of files in the network. 3. Antivirus – is used to prevent viruses from penetrating the network and the computers connected to it. It also eliminates the counter-espionage potential within a network. Since there are many antivirus softwares available, the network has the freedom to choose the appropriate antivirus for the network. 4. Strong password encourages all network an   web users to use a password that contains letters, numbers and symbols so as to increase the difficulty of breaking or cracking the password and steal any information from the network. 5. Packaging – cables used to make sure no unauthorized person have access to data and change it. Disaster Planning and Recovery Before setting a network, the manager of the project requires designers and developers of the network to take into account unforeseen circumstances, such as natural disasters and hardware failure, to reduce their impact. Earthquakes, floods, fires and such disasters may be given a solution using the following points †¢ The proximity of cables to main electrical wirings must be significantly distant to avoid fire. †¢ As much as possible, servers must be placed outside the building. Extra security protocols must be applied to avoid losing information. †¢ If a building has multiple servers, it is advised that all servers be placed on an isolated location and away from public gathering places. This will require the development of additional security precautions. †¢ Different types of cables should be considered in setting up a network to maximize its us †¢ Do not put cables near bodies of water or water discharge sa this may damage the cables †¢ Provide rooms with electric generators in case a power outage occurs. Make sure that these rooms are close to their central control devices to avoid technical problems in connecting the machines to the generator. †¢ Provide fire-preventing equipment such as fire extinguishers near the whereabouts of control systems †¢ Provide water and fire alarms to inform personnel if water or fire gets near the data storage devices †¢ The network team should provide a spare or backup server to perform full back up planning after disaster With the increase in number of intrusions and attacks on networks trying to take data and information, a way of protecting these data should be prioritized in a network. Since the data are, most of the time, secret and important to companies, detection and control of intrusions must be strictly implemented. Through the latest presentations that we have done in class, we have learned new techniques and OSI Models that should be taken into account to provide the highest standards of security and quality. Some of these techniques are firewalls, proxies, encryptions, IP security, data authenticity, communications type and satellites.

Christina Rossetti Essay Example for Free

Christina Rossetti Essay †¢ Christina Rossetti was the youngest of four children †¢ Mother- Gabriele Rossetti, an Italian patriot who came to London in 1824. †¢ She had one sister, Maria, and two brothers, Dante Gabriel and William. †¢ Brought up as devout Anglo-Catholics. Christinas elder sister Maria eventually became an Anglican nun. †¢ In 1848 she became engaged to James Collinson, a member of her brothers Pre-Raphaelite circle. (broke it off when he became a Roman Catholic. †¢ Next she fell in love with Charles Cayley ( she broke it off because of religious differences. †¢ Her brother William said: She enquired into his creed and found he was not a Christian. Rossettis definition of Christianity was narrower and more evangelical than most peoples. †¢ Like many unmarried middle-class women of that period, Rossetti did not have any paid employment, except for about a year when she and her mother tried to run a day school after failing health and eyesight forced her father to retire in 1853. †¢ Christina Rossettis family was very important to her. Although she loved two different men, and it is clear from her poetry that she could express feelings of love and the heartbreak of losing love, she never married or broke away from home. Her brothers and sister were central to her emotions and she was deeply upset by Dante Gabriels nervous breakdown in 1872. †¢ He died in 1882; she lived as a recluse at home, concentrating on her religious life. †¢ After a period of ill health Christina Rossetti died of cancer on 29 December 1894. Her Poetry †¢ Poetry inspired by her religion. †¢ Many poems, such as When I am Dead, My Dearest, Remember and Up-Hill, are concerned with the nearness of death and the renunciation of earthly love. †¢ Her love of God is passionately expressed in Long Barren, and her poem In the Bleak Mid- Winter is well known as a Christmas carol. †¢ Also a poet who demonstrates in her work, a love of nature. Another Spring and Spring Quiet show an exactness of observation which her Pre-Raphaelite brothers would have undoubtedly appreciated. †¢ Her poem A Birthday is a rapturous expression of delight in love. †¢ She also shows a malicious appreciation of sisterly jealousies in her poem Two Noble Sisters. †¢ Among her works is Sing-Song, A Nursery Rhyme Book, published in 1872, which contains lyrics for young children. †¢ Many people consider that her best work is Goblin Market (1862), the longest of her poems. Because goblins sound as if they belong in a fairy story, it is often put in collections for young children. However, it is really a short epic poem for adults. †¢ The most obvious quality of the writing is the exactness and sensuousness of her descriptions of the fruit sold by the goblins. Comparisons to Other poets †¢ The nearest comparison in English poetry to this must be the description of the feast in Keats The Eve of St Agnes. The most striking thing about the subject matter is its eeriness. †¢ Some people have seen this poem as an allegory, in which the fruits offered by the goblins stand for the pleasures of the world, though according to Christinas brother William she denied that it was anything more than a fairy story. †¢ However, many modern readers may make a connection with the temptations and effects of narcotic drugs. †¢ This may not be a connection that Rossetti intended, but the description of Laura yielding to temptation and her subsequent illness would have been familiar to such families as the Brontà «s, whose brother Branwell died of an addiction to drink and drugs, and to Coleridge, who suffered from a lifelong addiction to opium.

Implementation of Wireless Receiver Algorithms

Implementation of Wireless Receiver Algorithms Figure 1 System Specifications (Tsimenidis, 2016) Figure 2 Message format (Tsimenidis, 2016) Figure 3 Non-coherent receiver (Tsimenidis, 2016) Figure 4 Coherent receiver (Tsimenidis, 2016) Figure 5 Receiver Front-End (Tsimenidis, 2016) Figure 6 Frequency response of a passband filter (Tsimenidis, 2016) Figure 7 Band-pass filter response Figure 8 Band-pass filter input/output Figure 9 Implemented DPSK demodulator (Tsimenidis, 2016) Figure 10 Low-pass filter input/output Figure 11 Optima sample time diagram Figure 12 Symbol with 40 samples (Tsimenidis, 2016) Figure 13 Early-Late sample at an arbitrary point (Tsimenidis, 2016) Figure 14 Early-Late sample at the maximum point of power (Tsimenidis, 2016) Figure 15 Early-Late symbol synchronization input/output Figure 16 Result of non-coherent receiver detection Figure 17 IQ Downconverter (Tsimenidis, 2016) Figure 18 Sine and cosine table graphs Figure 19 Index control flow (Tsimenidis, 2016) Figure 20 Filter comparison (Tsimenidis, 2016) Figure 21 Down-conversion: x3I vs. x3Q counter clockwise Figure 22 Down-conversion: x4I vs. x4Q counter clockwise Figure 23 x6I vs. x6Q Figure 24 Averaging approach to overcome the jitter (Tsimenidis, 2016) Figure 25 Code to solve the jitter Figure 26 Principle of the differential detector (Tsimenidis, 2016) Figure 27 Constellation without Phase Offset (dI Vs dQ) Figure 28 Result of coherent receiver detection using differential coherent demodulator Figure 29 BPSK and DPSK BER comparison (Tsimenidis, 2016) Figure 30 Costas Loop algorithm (Tsimenidis, 2016) Figure 31 Costas loop: yQ vs. yI Figure 32 Message obtained using Costas loop Figure 33 BER comparison of different modulation schemes and techniques (Sklar, 1983) This project is focused on implementing and coupling several functional blocks that will allow us to detect, extract and decode a wireless message that is being broadcasted in the Merz lab of computers. In the following sections, we will find the implementations of coherent and non-coherent receivers. In the section 1 we define the basic background knowledge that will be commonly used in the posterior phases of the report. We define the basic structure and features of the transmitter as well as the message format that the system is intended to detect. Finally, we define what is a coherent and a non-coherent system and provide a classification about the different techniques. In the section 2 we will analyse the non-coherent receiver implementation from the message acquisition, going to the filter section, signal scaling and refinement, using a DPSK demodulator to define the probable symbols represented, then establishing a synchronization for the symbol and finally presenting the message obtained. The section 3 will focus in the realization of a coherent receiver, considering two possible variations on this type of implementation: the first will be developed using a differential coherent demodulator, in this technique we will not recover the carrier signal. The second implementation of this receiver, will be done using a carrier recovery technique, which is in this case a Costas Loop Algorithm. Some common blocks are done in all the possible implementations that were carried out during this project: the first is the receiver front-end which is the responsible to acquire and prepare the signal for the posterior processing. To recover the symbol synchronization, we use a technique called early-late gate, this will let us know what is the most convenient instant of the time to sample the signal. For the case of coherent signal, we must adapt this technique to apply it separately for the signal I (in-phase) and Q (quadrature). The section 4 contains analysis, conclusions and discussions of the results obtained during the realization of the phases. The last sections of the report detail the references used for further explanations and the different programs used for implementing each block. In each section, we include little further explanations that could be referred to understand the steps and details that have been done in the corresponding section. 1. Background knowledge 1.1. Aims and objectives The focus of this project is to demonstrate the implementation and the behaviour of data links using Radio Frequency as media and different techniques. Basically, we use two techniques: coherent and non-coherent implementations. A further explanation of these techniques will be done in the following sections. A second implementation of a coherent receiver will be carried out by using a phase recovery technique with the Costas Loop and coupling the posterior phase to this block. The specifications of the system to be implemented could be defined as a set of blocks connected as follows: Figure 1 System Specifications (Tsimenidis, 2016) Where the transmitter has been already implemented, therefore the work will be carried out in the receiver algorithm to obtain the final data, which of course must be in a human readable format. We also must consider that the format of the message that is being broadcasted wirelessly in the Merz lab has the following format: Figure 2 Message format (Tsimenidis, 2016) 1.2. Digital modulation The digital modulation process refers to a technique in which the digital representation of the information is embedded in a signal, a carrier typically a sinusoidal signal, in such a way that this information will modify an established parameter of the signal. We can define a sinusoidal carrier in a general way as a signal that will correspond to the equation: Where the information could be embedded in this will be called amplitude modulation, if the parameter this will be called frequency modulation and finally the phase modulation will be obtained if we embed the data in the expression. Regard to the symbol this is called the angular frequency, it is measured in radians per second, this is related to the frequency (f) expressed in Hertz by the expression. 1.3. Coherent and non-coherent detection Considering the receiver side, we can classify the demodulation or detection based on the use of the carriers phase information in the process of information recovery. In the case that the receiver uses this information to detect the signals it will be called coherent detection, and non-coherent detection otherwise. This are also called synchronous and asynchronous detection, respectively. Coherent Non-Coherent Phase Shift Keying (PSK) Diferential Phase Shift Keying (DPSK) Frecuency Shift Keying (FSK) Frecuency Shift Keying (FSK) Amplitude Shift Keying (ASK) Amplitude Shift Keying (ASK) Continuous Phase Modulation (CPM) Continuous Phase Modulation (CPM) Figure 3 Non-coherent receiver (Tsimenidis, 2016) Figure 4 Coherent receiver (Tsimenidis, 2016) 2. Non-coherent receiver 2.1. Receiver Front-End This segment of the non-coherent receiver will consist of the first two blocks, which are common for both coherent and non-coherent implementations. Figure 5 Receiver Front-End (Tsimenidis, 2016) The first block is the responsible to take a sampled input expressed as bits, represent it as a float number and then normalise it to a range +/- 1.0. The second stage applies a bandpass filter to the signal, this will attenuate the parasites components of frequency that could contaminate the signal that we received. Figure 6 Frequency response of a passband filter (Tsimenidis, 2016) To design the passband filter we must consider the following information: let = 4800 Hz, data rate = 2400 bps and sampling frequency = 48000 Hz. These assumptions, led us to the following results: Lower passband cut-off frequency: = = 3600 Hz Upper passband cut-off frequency: = + = 6000 Hz Lower stopband cut-off frequency: = = 1200 Hz Upper stopband cut-off frequency: = + = 8400 Hz The implementation of the filter will be done using the sptool command of Matlab, using the above defined values as parameters for the filter. The following figure shows the result obtained in the realization of the lab, considering the number of filter coefficients of 101. Figure 7 Band-pass filter response Figure 8 Band-pass filter input/output 2.2. DPSK demodulator To implement the non-coherent detection, we are going to use a DPSK demodulator, which was previously categorized as a non-coherent technique. The DPSK demodulator will take advantage of two basic operation that occur on the transmitter: the first is the differential encoding, and the second is the phase-shift keying. In the transmitter, the signal will be advanced in phase, with respect to the current signal, if the symbol to be sent is 0, and the phase will be preserved if the bit corresponds to 1. In the side of the receiver, we have memory that will be able to compare the phase of two successive bit intervals, i.e. it determines the relative difference in phase of these two, determining the correspondent symbols without the need of having information about the phase of the signal in the transmitter. Figure 9 Implemented DPSK demodulator (Tsimenidis, 2016) The FIR matched filter block will correspond to a low-pass filter, this is required because the demodulation process, as it is a multiplication between two sinusoidal signals, will generate a low-band signal and a high-band signal, where the second one should be filtered. 2.3. Symbol synchronisation The symbol synchronisation, also called symbol timing, is a critical process that consists in the continuous estimation and update of information of the symbol related to its data transition epochs. This is a critical process that must be conducted to keep the communication accuracy in acceptable levels. Broadly speaking, the synchronization techniques could be classified in two groups: open-loop and closed-loop. The chosen technique for this project corresponds to the Early-Late Symbol Synchronization which is a closed-loop type. The most popular technique is the closed-loop synchronization because Open-loop synchronizer has an unavoidable nonzero average tracking error (though small for large SNR, it cannot be made zero), a closed-loop symbol synchronizer circumvents this problem.(Nguyen Shwedyk, 2009) The corresponding results of the output of the demodulator are the following figures, these corresponds to the signals before and after the signal is filtered with the FIR low-pass filter. Notes: The curve in blue corresponds to the signal containing the high-frequency parasite component, and the curve in red shows the result of filtering the high frequency component, i.e. this is the output signal of the filter. The symbol correspondence is: symbol 0 for positive numbers, and symbol 1 for negative magnitudes. Figure 10 Low-pass filter input/output 2.3.1. Early-late Symbol Synchronization (Reed, 2002) The algorithm Early-late used for synchronization is supported by the idea that the sample of a symbol must be taken in the time where the energy is maximum, this will warranty a minimum error probability. This algorithm exploits the symmetry of the signal, neglecting the distortion and noise. Considering the following figure, we can see that the optimal time to take the sample, identified as T, should be in the halfway between two points T0 + d and T0 d, if the power in the T0 + d and T0 d is, ideally, the same. Figure 11 Optima sample time diagram Suppose the following figure shows a symbol, we can notice that if we take an arbitrary sample, e.g. n=3 and depending on the thresholds, could be wrongly interpreted as 0, however the most appropriated value is 1. Figure 12 Symbol with 40 samples (Tsimenidis, 2016) With a buffer size of 20 registers, we can notice that in the following figure the power levels of the signal for n=0 and n=19 are different, then we need to move the whole buffer one space to the right. Figure 13 Early-Late sample at an arbitrary point (Tsimenidis, 2016) If we continue with the iteration and we follow the rules described in the flow diagram, we will converge in a finite number of iterations, where we can see that the result is located as expected, this could be seen in the following figure. Figure 14 Early-Late sample at the maximum point of power (Tsimenidis, 2016) The results of the application of this algorithm for our case are shown in the following figure: Note: The signal in red is the input of the early-late symbol synchronization block and the signal in blue is the value of Em that will finally determine the value that the symbol is representing, in each case. Figure 15 Early-Late symbol synchronization input/output 2.4. Frame synchronisation As was stated in the in the background section, the message frame will begin with the characters ++++ and the message has 72 bytes encoding the message using a ASCII characters. Therefore, this section will deal with two tasks: (1) Detect the message preamble and (2) Decode byte per byte of the data contained in the payload. After the preamble section, we will detect 576 bits, corresponding to the 72 bytes that correspond to the ASCII characters. These characters will be dumped into an executable file that will then show the message that has been detected and decoded. The specific implementation of the algorithm is attached in the appendix section of this report. 2.5. Results and evaluation The result of applying the steps described in the sections from 2.1 to 2.4, we obtain the message, getting the result showed in the next figure: Figure 16 Result of non-coherent receiver detection 3. Coherent receiver The coherent receiver, also called synchronous receiver, implies certain degree of agreement or knowledge about parameters used in the transmitter side. For the case of the project, we have a signal of type DPSK, i.e. the codification is contained in the variation of the phase of the signal. 3.1. IQ Down-converter The aim of this component is to decompose a complex signal in terms of its in-phase and quadrature elements. To achieve this decomposition, we are going to perform the implementation using lookup-table oscillators, i.e. that for a given signal in-phase and quadrature components will be obtained by using the definitions given by: Figure 17 IQ Downconverter (Tsimenidis, 2016) Upon these definitions, the components that we obtain could be represented in two separated graphs, each one of them representing a different component table. Figure 18 Sine and cosine table graphs As for the index control of look-up table, we decide to use for loop to generate x2I[n] and x2Q[n], storing and transporting data to corresponding files as x2I.h and x2Q.h. These files will be used later to perform the conversion of values. Figure 19 Index control flow (Tsimenidis, 2016) After understanding the principle, we defined all of variables and initialized them to zero inside the main, and select the appropriate value of some variables such as state_mf, coeffs_mf and N_mf.Same as the picture over, the original data from bandpass output is also separated into two filters: Matched Filter I and Matched Filter Q, and the coefficients of the filters are the same with the original one. The benefit of using the lookup-table oscillators (setting x2 into x2I and x2Q) is to decrease the time of simulation because of the lower required sampling rate.ÂÂ   We can use via lookup table method to call them from x2I.h and x2Q.h, so that we can use it more efficiently in Matlab instead of shifting itself. And then, we multiplied x1 to x2I[n] and x2Q[n] one by one by using another for loop and got x3I and x3Q.Besides,the code of matched filter had been given by tutors and got x4I and x4Q. {x4I=fir(x3I,coeff_mf,state_mf_I,N_mf);ÂÂ   //match filter I } {x4Q=fir(x3I,coeff_mf,state_mf_Q,N_mf);ÂÂ   //match filter I } Figure 20 Filter comparison (Tsimenidis, 2016) We monitored and recorded x3I and x3Q in PicoScope and print screen. The wave of them spinning fixed at the origin point so three of these blows were selected to describe this wave batter. Figure 21 Down-conversion: x3I vs. x3Q counter clockwise After this, we can visualize the outputs of each one of the filters, now we are going to plot in the figure x4I and x4Q, obtaining: Figure 22 Down-conversion: x4I vs. x4Q counter clockwise 3.2. Symbol synchronization After IQ down-converter, the next stage is symbol synchronization. To achieve this, we create x5I[n] and x5Q[n] and sent x4I, x4Q one sample at the time. The procedure that we should do in this section is similar to the one seen in the non-coherent detection, however we must consider two buffers instead of one, one for I and other for Q parts. The sum of the above established energies will correspond to the energy that can be seen as the total energy of the signal, which is similar to lab of the symbol synchronization for the non-coherent receiver. The corresponding calculations to obtain the signals after the symbol synchronization process are defined as: Then, plotting the results obtained, we see the following figure: Figure 23 x6I vs. x6Q Due to synchronization problems, we threated the jitter that was causing these inconsistences using the averaging approach, as described in the follows: Figure 24 Averaging approach to overcome the jitter (Tsimenidis, 2016) Figure 25 Code to solve the jitter 3.3. Differential coherent demodulator In this section, we will implement a differential detector, also called a differential coherent demodulator. Figure 26 Principle of the differential detector (Tsimenidis, 2016) At first, we declare and initialize appropriately the required variables and define .In this differential detector, need to multiply ,1 symbol delay by . N N=1 N=2 N=3 After this, we defined x6I_prev and x6Q_prev to deal with this problem and let x6I_prev and x6Q_prev denote the values of x6I and x6Q from the previous symbol. It is very important to initialize them to zero at the declaration because we know . (Tsimenidis, 2016) x6I_prev=x6I; x6Q_prev=x6Q On the same time, dI contains the first two terms which stand for the In-phase part and dQ which contains the last two terms which stand for the Quadrature part. Hard decision is then achieved by deciding whether the dI value is positive or negative, with a negative value indicating that a logic 1 was transmitted which might be used in the next step that is frame synchronization and message detection. Now we obtain the plot showi

My term paper :: essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  What Came first the chicken or the egg? For centuries man has struggled with the question of our origin. Why are there so many distinctions in the creatures that inhabit this planet. Why are structures similar in a bird, a whale, a bat, and a human being creatures that seem to have no relation to one another. Although several theories have sprouted from different great thinkers of many cultures in many diverse parts of the world all of the theories seem to center around two main points divinity vs chance or for a more famous colloquialism Evolution Vs Creation. Once complete this paper should allow the reader to see not only the folly and boldness of evolution in the face of so many discrepancies, but also the sheer irrefutable beauty of creation in all of its complex simplicity   Ã‚  Ã‚  Ã‚  Ã‚  In the beginning God Created the heavens and the earth. Now the earth was formless and empty, Darkness was over the surface of the deep, and the Spirit of God was hovering over the waters. And God said â€Å"Let there be light† and there was light Genesis 1:1-3 NIV  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  The bible, one of the oldest pieces of written history that follows an entire civilization for over 4000 years not only gives fascinating tales of mystery, intrigue, wars, famines, loves and loses also gives a very specific account of the origin of man and indeed all life on this planet as well as in the universe. The simplicity of the verses tells us that the big bang was possible, with divine help, it gives no more than God said it and it was so which would agree with the abrupt abitrary eruption of the solar system that scientist describe. This insight allows us to delve even deeper into the awesome power of Gods word. Here in the beginning we see how just the word can form solar system, delving even deeper we catch a glimpse of what that means for us as human beings and our origin.   Ã‚  Ã‚  Ã‚  Ã‚  Classical evolutionary theory teaches that creatures change from one thing into another. For instance, amoebas changes from one celled creatures to multi celled creatures over time. Genesis in the first chapter tells us that things must reproduce â€Å"each according to its kind†. Recorded history and fossil records should support one of the theories. Evolutionist claim that it supports theirs however noted paleotologist have even noticed the apparent gaps in the record showing that there is a missing link.

Beethoven, Bach And Bartok: Comparisons Essay -- essays research paper

Barouque Composers Still Being Played Frequently Monteverdi Lully Corelli Pachelbel Scarlatti Purcell Couperin Albinoni Vivaldi Telemann Rameau Bach Handel Gluck Baroque and Classical Orchestras – Differences <td width="50%">Baroque OrchestrasClassical OrchestrasString section and basso continuo central to the orchestra. Other instruments are occasional additions.Standard group of four sections: strings, woodwinds, brass and percussion. Different instruments treated individually.Fairly small; generally 10- 40 players.Larger than baroque; great variation to the numbers of players.Flexible use of timbres, e.g. Timpani and trumpets used generally just for festive music.Standardised sections. Most sections used regularly.Tone colour is distinctly secondary to other musical elements.Greater variety of tone colour and more rapid changes of colour. Timbre is unimportant and therefore a piece written for harpsichord could easily be rearranged for a string section.Each section of the classical orchestra has a special role. And each instrument is used distinctively.Wind instruments mainly used as solo instruments or as part of the basso continuo.The wind section had become a separat e unit capable of contrast and distinct colour.The harpsichord generally plays an ostinato under the orchestra. Piano not invented.The piano introduces a third colour-tone to be contrasted with the orchestra Baroque and Classical Concerto Form– Differences <td width="50%">Baroque Concerto FormClassical Concerto Form Concerto grosso (use of string orchestra set against a number of solo instruments) is the most popular concerto form of this period. Other forms include The ripieno concerto and the solo concerto.Symphony form develops from baroque concerto forms and becomes the new form. Shorter movements than classical form.Concerto longer than baroque from. Fairly strict structure and prerequisites, e.g. Traditional ritornello form, virtuostic displays etc.More freedom and experimentation with traditional form. First movement has solo passages extending into long sections; alternated between four or five ritornello sections. First movement constructed in a variant of ritornello form with a double exposition. Violin is preferred concerto solo instrument although the harpsichord becomes more and more popular throughout the century.The newly prominent piano tak... ...and Bart&oacute;k used instruments for solo passages that had not been used again. All demanded high performance levels from their orchestra. Both Mozart and Bart&oacute;k wrote string quartets. All had great influence on later composers, Mozart on Beethoven, Bart&oacute;k on Copeland and Bach on everyone including his twenty or so children&#61514; All were leaders in their own eras. All died tragically, all succumbing to illness. Bibliography TitleAuthor/ EditorPublisherDate James Galways’ Music in TimeWilliam MannMichael Beazley Publishers1982 The Concise Oxford History of MusicGerald AbrahamOxford University Press1979 Music in Western CivilizationPaul Henry LangW. W. Norton and Company1941 The Ultimate Encyclopaedia of Classical MusicRobert AinsleyCarlton Books Limited1995 The Cambridge Music GuideStanley SadieCambridge University Press1985 School text: Western European Orchestral MusicMary AllenHamilton Girls’ High School1999 History of MusicRoy BennettCambridge University Press1982 Classical Music for DummiesDavid PogueIDG Books Worldwide,Inc1997 Assignment Completed By: Wolff, &copy; June 2000 A: Yr 12 Musical Knowledge Research Assignment 24/05/00/Joan

Biomechanics of Running Essay -- essays research papers

Introduction: A Qualitative Analysis of Running In the 1970's, thousands of people took to the road with a new trend of exercise----running. It was fairly easy; just put one foot in front of the other as fast as you can and go as far as you can. Feel the burn in your chest? The sweat trickling down your face? The throb in your knees as your foot pounds into the ground with every step? Well then, you're exercising! You’re running! Since then, running has become a dominant factor in sports and fitness; a factor so prevalent that the number of musculoskeletal injuries due to running has also increased over the last quarter century. These chronic injuries are usually due to overuse, improper training techniques, or a combination of the two. By using the results of other biomechanists’ studies, one can extrapolate an idea of what running should look like and what muscles are utilized during the activity. Consequently, changes in technique, strength training, and flexibility training can be made in order to decrease the po tential for injury. Article Summaries   Ã‚  Ã‚  Ã‚  Ã‚  Before analyzing the mechanics of running, it is important to accumulate some of the vast research available for this activity. The following are brief summaries of research articles that study various factors on running. DeVita (1994) noted the gait cycle is measured in two ways: swing-stance-swing or stance-swing-stance. In this study, EMG activity of six muscles was obtained from four subjects while walking and running. The data was collected while the subjects performed a consecutive swing, stance, swing period of each gait. From this, the swing-to-stance and stance-to-swing period of each gait could be measured. The EMG results showed greater activation levels for 5/6 muscles during the swing-to-stance period. Results concluded that the subjects needed to prepare for the initiation of stance and the application of relatively large external forces and momentums. Therefore, when assessing the human gait, it is best to observe stance-swing-stance. Jacobs, Bobbert, VanIngen, and Schenau (1993) analyzed the function of mono- and biarticular leg muscles during the stretch-shortening cycle of running at 6 m/s. Kinematics, ground reaction forces and EMG activities were recorded for a single stance phase. First of all, estimates of muscle force were correlated with origin... ... Reference Page DeVita, P. (1994). The selection of a standard convention for analyzing gait data based on the analysis of relevant biomechanical factors, Journal of Biomechanics (vol 27, no 4) pg. 501-507. Hall, S.J. (1999). Basic Biomechanics (3rd ed), pg. 398-439. McGraw-Hill. Jacobs, R., Bobbert, M.F., vanIngen Schenau, G.J. (1993). Function of mono- and biarticular muscles in running, Medicine and Science in Sports and Exercise (vol 25, no 10) pg. 1163-1173. National Strength and Conditioning Association, Baechle, T.R., editor (1994). Essentials of Strength Training and Conditioning pg. 293-385. Human Kinetics: New Zealand. Nig, B., DeBoer, R., and Fisher, V. (1995). A kinematic comparison of overground and treadmill running, Medicine and Science in Sports and Exercise (vol 27, no 1) pg. 98-105. Northrip, J.W., Logan, G.A., and Wayne, C.M. (1979). Introduction to Biomechanical Analysis of Sports (2nd ed), pg. 45. W. C. Brown Co. Publishers: Dubuque, IA. Rasch P.J. and Burke, R.E. (1978). Kinesiology and Applied Anatomy (6th ed) pg. 199-398. Lea & Febiger: Philadelphia Thordarson, D.B. (1997). Running Biomechanics, Clinics in Sports Medicine (vol 16, no 2) pg. 239-247.

Hamlet Behavioral Essay Essay

Shakespeare’s Hamlet for years has been the classic example of a man turned to madness because of his foul deeds and tortured soul, and yet despite this characterization he has also proven to be a character that the audience could relate to. He wasn’t loud or brash; indeed Hamlet was an educated man, a university scholar. As the play progresses the audience learns that he can and does love another person despite his quiet and reserved nature and when he does finally die in the closing sequences of the play, he does so in honor after killing the man who killed his father and who plotted to kill him. In Act III, Scene i of the play we meet Hamlet uttering those famous words â€Å"To be or not to be: that is the question† (III. i. 58). He is thinking about committing suicide because he is unable to deal with his own painful memories, especially those surrounding the death of his father. Later in this scene he rebukes Ophelia when she tries to return his gifts, categorically stating that he did not give her anything in love at all. He becomes angry with her and even demands that she move to a nunnery, as he was so upset at the concept of marriage. In this part of the play we see a man who is actually acting in kindness. He did not feel worthy of Ophelia’s love or affection and given that he was contemplating his own death he would be aware that Ophelia would be safe in a nunnery even if she wasn’t that happy. There is a suggestion from Shakespeare that Ophelia is aware of Hamlet’s motive behind his anger when she is described as mourning Hamlet’s mind, believing he had actually succumbed to insanity. In the second scene of Act III the audience is shown the plans Hamlet has for exposing the King through the enactment of a play that was meant to strongly resemble the actions that Hamlet presumed led to his father’s death. When the King does leave the room during the play Hamlet seeks assurances from his friends that the King’s behavior was suspect and therefore the King must be guilty. Hamlet decides to have a frank talk to his mother about the King before any action is taken. He is quoted as saying, â€Å"I will speak daggers to her, but use none† (III. ii. 366). This scene shows the paradox of Hamlet’s anguish over this father’s death. Although he believes the King his uncle is guilty, he also has the horrible duty of telling his mother about his suspicions and although he does exhibit signs of some mad behavior, he is still in control enough to understand the hurt his mother will go through after his revelation. This is evident in his further angry comments with Ophelia before he goes to speak to his mother. By the third scene Hamlet has worked himself up to a state where he could kill Claudius and avenge his father’s death, but when he goes to confront the man he sees that Claudius is on his knees praying. Now this scene is important because although Hamlet was angry enough to kill the King he wants to wait until the man has finished praying. A person that was totally out of control would not be considerate enough to wait until the victim had finished his prayers, but Hamlet did although his dialogue at the time suggests that Hamlet waited only because he did not want Claudius’s soul to go directly to heaven. The last scene of Act III is where Hamlet does confront his mother with his own suspicions and by accident kills Polonius. The scene contains graphic dialogue from Hamlet to his mother especially regarding her sexual relationship with his uncle, with his statements seemingly proving his lapse into insanity. The random killing of Polonius showed that even in anger Hamlet was not prepared to kill Claudius (the intended victim) face-to-face, which is why he did not pull back the curtain to ascertain the identity of the hidden man. Act III does contain some of the more graphic examples of Hamlet’s madness but on analysis it would seem his behavior could not be considered negative when taken in context. Hamlet was justifiably upset when he finds out Claudius has killed his father, and then married his mother straight afterwards. He wants what many young men of that era wanted, and that was to avenge his father’s death with honor, but it would seem that he just didn’t have the killer instinct in his behavior to actually carry out the act. Hamlet also shows foresight in arguing with Ophelia and in the way he verbally attacked his mother concentrating more on the sexual aspects of her life with Claudius rather than his personality. On analysis it would seem that Hamlet’s behavior in the third act would be as positive as it could be given the circumstances, and on reflection it is his lack of killing ability and his consideration for this mother and Ophelia that shows Hamlet’s behavior in a more positive light than can be assumed from a surface reading of the dialogue alone.

Wellness Worksheet

Wellness Worksheet 39 Due: Oct. 6th by 11:59 pm. Facts About ContraceptionPoints: ___/20 To help you choose the best method of contraception for you and your partner, you must be familiar with the different methods. Fill in the boxes with the advantages and disadvantages of each method, along with how well each one protects against pregnancy and STD’s, I am looking for percentages/failure rates. Use outside resources if necessary. Method| Advantages| Disadvantages| Effectiveness/STD Protection| Oral Contraceptives| Easy to use, reduces mentsral cramps, can improve acne, prevents ectopic pregnancy. Weight gain, blood clots, headaches, and depression. | 99% effective and does not protect from std’s. | Vaginal spermicides| Can be purchased without a prescription, inexpensive, immediate protection. | Allergic reactions may occur, and can be difficult to insert. | 50-95% effective and does not protect against std’s. | Vaginal contraceptive ring| Can leave it in for 3 weeks, don’t have a period while it is in| Vaginal irritation, discharge, nausea, headache| 99% effective and does not protect against std’s. Contraceptive implants| Contraception for 3 years, doesn’t interfere with intercourse, low cost and you don’t have to remember to take it. | Changes in periods, headaches, and acne. | 99% effective and does not protect agains std’s. | Withdrawal| No side affects, don’t have to remember to take anything,| May not withdraw in time, may forget to withdraw when in the moment. | Probably about a 50% effectiveness, and definitely does not protect against std’s| Emergency contraception| Safe, excellent form of backup if something fails| Nausea, abdominal pain, fatigue, and headaches. 75-89% effectiveness, and does not protect against std’s. | IUD| Immediately effective, does not change hormonal balance, can be used for 5 years| Requires a doctor for insertion and removal, may cause infection, ma y injure the uterus during insertion. | One of the most effective forms of birth control, does not protect against std’s. | Male Condom| Convenient, easy to obtain, inexpensive, lightweight, and disposable. | May dull sensation, may be less enjoyable, must be pre-planned, some don’t like that you can’t feel the warm fluid. 95% effective, protects against std’s. | Female Condom| Easy insertion, doesn’t require a prescription, doesn’t change hormonal balance, easy to obtain. | May move around, may irritate both vagina and penis, feeling and sensation may be reduced. | 79-95% effective, greatly reduces chances of std’s. | Male and Female Sterilization| Don’t have to think about birth control, works right away. | Have to have surgery, risk of infection and reversals almost always do not work. | 99% effective, does not protect against std’s. |

Any work

I donot know how the blackboard-cleaning is related to â€Å"Rajiv Gandhi Vidyutikaran YoJana†? If automatic cleaner needs electricity,then it will be more proolematic to implement throughout India. My data related to blackboards includes all schools(private and govt. )in rural and urban India. ‘ can substantiate my conclusion with different surveys and datas prepared by govt. and non-govt. agencies that still in rural area more than half of the schools have negligible basic infrastructure.As far s Mid-day meal scheme is concerned I have worked on this in 23 blocks. ‘ know what type of food-grain comes for the food and how officials and department of education works on this? My NGO has also done survey regarding basic infrastructural facilities in government primary schools in seven districts. MOre than 40% of the schools showing different infrastructural facilities on the goverment-paper is false. Few government schools are even running on the paper only. I am not sayiing that Blackboard cleaner would not improve the situation.But,it can be used only if there will be a blackboard. If you will allow me,then I will present the datas of Planning Commission,Department of HRD(Govt. of India) and different state governments. You are lucky that you found Blackboard in the village during field- work. And,also please keep onething in mind that we were sent to those villages,where we can reach by easy transportation mode. But,there are thousands of villages in India,where even district administration and police cannot access in any extraordinary situations. hools,blackboards and other infrastuctural facilities are remote things for those villages. I appreciate your imagination for planning to adopt one BPL family by one tax-payer and Blackboard cleaner†¦ but,these poetic imagination has extreme limitations†¦.. There are other basic needs of the infrastructure which should be addressed before thinking of automatic blackboard. May be there cou ld be alternates like running the school in shifts if the class strength is large in number. People of village can be encouraged to get together and ask thePanchayat to talk at higher level to run the school in shifts in their village. As mentioned before, electricity and maintenance problem of automatic blackboard will be an issue in villages where electricity is not there. we may need automatic blackboards in schools in rural areas but before that dont you think that their are more critical and important issues like teacher students ratio,poor quality of education and reducing high dropout rates to be addressed†¦.. Anshul sood p30003 any work By dhageas

Disconnected in an Interconnected World

Disconnected in an Interconnected World Danielle Searle In a world filled with interactivity and interconnectedness, how is it possible to be so disconnected from the people who live the closest you? Peter Lovenheim’s article, â€Å"Won’t you be my Neighbor,† discusses this very ideal. After a terrible murder-suicide occurred in Lovenheim’s neighbor he was forced to asked him-self do I really know who lives next me? Lovenheim realized he didn’t and decided to something about it. He decided he was going to sleepover neighbor’s homes in order to get to know them better.What Lovenheim should have taken into account is that, not everyone cares to â€Å"connect,† with his or her neighbors; others may simply just not have the time. And finally with the technology today, our â€Å"neighborhood† has grown to be more then the surrounding blocks near our home. Since when does living next door to someone automatically mean they have to be involved in your life? Lovenheim claims that, â€Å"Property lines isolate us from the people we are physically closets† to: our neighbors. (Lovenheim, 2008) When in reality it’s people that isolate themselves from other people.We all have freedom of choice. Just because you share an address, doesn’t mean you have anything in common with your neighbors. Starting a relationship with a person just because they live next door, is almost as idiotic as befriending someone just because they have a lot of money. Time is a huge factoring in life. People have to choose how much time to spend on different aspects of their lives based on priority, so sometimes time to make friends with neighbors is probably extremely low.Lovenheim asks, â€Å" Why is it that in an age of cheap long-distance rates, discount count airlines, and the Internet we often don’t know the people who live next door. † (Lovenheim, 2008) The answer to that question is that people are busy . For example a full time student, who also works, might not have a lot of time to get chummy with her neighbors. Or even a doctor who works the night shift at the hospital, or a new mom that’s focused on her newborn. Lastly, back in the day, your neighbors may have been important people in your life because they were all you knew.Most women stayed at home, so befriending neighbors wasn’t so shocking. Therefore it makes sense that in the 1950s neighborhood ties were way stronger. (Lovenheim, 2008) Today, with most men and women working there is even less likely of chance to get to know your neighbors. But, advances technologies has allowed us to extend our communities to further then just by our house. The Internet lets us keep in contact with friends and family that live far away. Social media allows people to know what going on with each other at all times.Even travel is easier with public transportation, cars, and planes allowing you to travel to almost anywhere. Wh ile it is possible to be isolated from the people who live the closets to you, what really matters is whether you choose to isolate yourself or not. With technology nowadays they is no reason to be disconnected from people; use your freedom on choice to â€Å"connect† with the people that matter most in your life. Use your time wisely and be open to extending your community with this new-wired world.

Battle Analysis for Bull Run

The battle itself was fought on July 21st, 1861, though the Union Army began executing its movements to Virginia almost a week prior. The Civil War divided the states in simple terms of a Union north and a Confederate south, with a couple undecided states in the middle. The President of the Union was Abraham Lincoln and the Confederate President was Jefferson Davis. Months prior to Bull Run President Lincoln had appointed Brigadier General Irwin McDowell to command the Army of Northeastern Virginia. McDowell was a Mexican-American War veteran and West Point graduate. The commander of the Confederate Army of the Potomac was Brigadier General P. G. T. Beauregard, who was dubbed â€Å"The Hero of Sumter. † He was also commended for valor in the Mexican-American war and like McDowell, a graduate of West Point. The two were classmates at one point. Only months after the start of the war at Fort Sumter, the Northern public pressed to march and capture the Confederate capital of Richmond, Virginia, which could bring an early end to the war. Against his better judgment, BG McDowell yielded to the political pressure and on July 16, 1861, the general departed Washington with the largest field army yet gathered on the North American continent. The Confederates found themselves at a disadvantage in mass initially, and BG McDowell wanted to keep that advantage. He ordered Union MG Robert Pattersons Army to engage BG Joseph Johnstons Army in the Shenandoah Valley, about 50 miles northwest of Manassas. The Union objective was to overwhelm the Confederate forces with a distraction flank attack to the right and a swift surprise flank to the left. With the reinforcements choked off, BG McDowell’s ambitious plan would put his Army in the Confederate capital by the end of the day. The Confederates, however, had been planning to attack the Union left, and if the attack had gone as planned it might have led to a clockwise rotation of the forces. Hundreds of excited spectators in horse-drawn carriages flocked from Washington D. C. to Manassas to watch what they thought to be a speedy Union Army defeat the Confederacy. Both the spectators and the Union Army would leave Bull Run in a hectic retreat back to Washington D. C. Each force had two Armies, one to the east and one to the west. For the Union, BG McDowell commanded the 36,000 Army of Northeastern Virginia Union troops in the east. MG Patterson commanded the 18,000 troops in the west. Within BG McDowell’s Army of five divisions there were several elements that consisted of: The 11th, 13th, 14th, 38th, and 69th New York, the 3rd, 4th, and 5th Maine, the 1st Minnesota, the 5th and 11th Massachusetts, the 1st Michigan, the 1st Vermont, the 2nd Wisconsin, with Griffin and Ricketts Artillery Brigades. BG Beauregard’s Confederate Army of the Potomac consisted of 21,000 troops in the east. BG Johnston’s four Brigades of 12,800 troops were in the Shenandoah Valley to the west and were critical reinforcements. BG Beauregard’s force of six Brigades consisted of: The 2nd, 4th, 5th, 8th, 18th, 27th, 33rd, and 49th Virginia, the Hampton Legion, the 6th North Carolina, the 7th Georgia, the 4th Alabama, Stuart’s Calvary, Elzey Regiment, Early Regiment, and the 7th and 8th South Carolina. The weapon technology used was fairly similar for both sides. Both the Union and Confederate Army relied on simple single-shot Pattern 1853 Enfield Muskets for their infantrymen. The revolvers used by the Union were mainly the new Colt Army Model 1860, and the Confederates preferred the older Colt 1851 Navy Revolver. A variety of bayonets were also an integral part of the infantrymans gear. Typically, these were socket or ring bayonets, intended to be attached to the end of the musket or rifle, and not wielded separately like a knife. The Confederate Calvary would also employ a Sabre, which was a long, lightweight single-edged slashing sword. Field Artillery also played an important role for both sides. The Union used 10-30 pound Parrott Rifles, 12 pound Napoleon smoothbores, 12 pound Howitzers, and 13 pound James Rifles. The Confederates had 6 pound guns, 6 pound rifles, 12 pound Howitzer, 10 pound Parrott Rifles, and 6 pound Cadet Guns. Both Generals had planned offensives. Much of the intelligence was concentrated on reporting the mass of the opposing forces rather than each other’s strategy. BG McDowell wanted a concentrated attack on the Confederate left flank, while BG Beauregard had planned to strike the Union left flank. From Washington D. C. the Union troops had marched southwest into Virginia, and it was at Centreville on July 20th, that BG McDowell decided to rest his weary, overheated troops and concentrate his forces. The same day, BG Johnston’s troops to the west in the Shenandoah Valley received word of the Union advances and they immediate slipped away to reinforce BG Beauregard. He never met MG Patterson’s forces. An hour after BG Johnston’s departure, MG Patterson wired BG McDowell saying he had managed to keep BG Johnston’s Army in the Shenandoah. Shortly after entering Centreville on the 20th, BG Tyler would disobey his orders and send his troops to attack the Confederate front along Bull Run. The attack was easily repulsed. With the Confederate troops dug in across the bank of Bull Run, and the majority of BG Beauregard’s force were behind them. The Union troops marched from Centreville at 0230 on July 21st. BG Tyler was ordered to initiate a diversion to the northwest at Stony Bridge at 0600. The diversion was quickly crushed by COL Evan’s Confederate forces and the feign fails. At 0830 the bayonets of McDowell’s flanking troops were spotted by one of COL Evan’s soldiers and he was warned of the Union plan to flank him. BG McDowell’s troops continued on to the left down bad roads, which would destroy his timeframe to ford Bull Run at Sudley Springs. COL Heinzelman’s Union division also missed the trail at Poplar Ford, and they were forced to stack up behind COL Hunter’s division also fording at Sudley Springs, further downstream. They arrived there at 0930, hours behind schedule.

Discuss the extent to which economic integration within the EU has Essay - 2

Discuss the extent to which economic integration within the EU has been subordinated to the achievement of political objectives - Essay Example The success of Coal and Steel Treaty led to the Treaty of Rome where the European Economic Community (EEC) or ‘common market’ as it was commonly known, created a freeway through which people, goods and services could freely move across the international borders (Europa, n.d.). It was a landmark decision as now people within EEC countries could move without passport and custom duties will not be levied on goods and services, even farmers were paid the same across the Community, giving a joint control over the production of agricultural products. The only drawback was the surplus production. The problem arose with different currencies prevailing in different countries, and for an economic stability the requirement for a single currency was increasingly felt. In the year 1973 Denmark, Ireland and the United Kingdom also joined European Community (EC). In 1992, The Treaty on European Union is signed in Maastricht, which has been a major EU milestone as it set clear rules for the future regarding single currency, foreign and security policy as well as closer cooperation in justice and home affairs. Under the treaty, the name ‘European Union’ (EU) officially replaced that of ‘European Community’. In the year 1999, the Euro (the common currency) was officially introduced in 12 countries namely Belgium, Germany, Greece, Spain, France, Ireland, Italy, Luxembourg, the Netherlands, Austria, Portugal and Finland adopted Euro as their currency while Denmark, Sweden and the United Kingdom decided not to take it up as of, for then. As their foreign and security policy, the EU takes on peace-keeping operations by replacing NATO units in the Balkans, Yugoslav Republic of Macedonia, and then in Bosnia and Herzegovina. It was a strategic victory of their combined military power. Slowly and gradually EU was becoming a formidable force to reckon with. On December 2007 the Treaty of Lisbon was signed to amend all previous

Structural engineering Essay Example | Topics and Well Written Essays - 1000 words

Structural engineering - Essay Example The analysis can be done either manually or using commercial software. This paper is aimed at expounding on the details of sub-frame structural design. For a span that is greater than or equal to two times the overall depth for simply supported span and greater than or equal to two and a half times the overall depth for continuous span, a beam is classified as shallow beam, otherwise it is a deep beam. Effective width (beff) = width of beam (bw) + ÃŽ £(0.2 times of half the centre to centre width to the next beam (0.2bi) + 0.1 times the span of zero moment (0.1lpi), with the sum of the latter not exceeding 0.2 times the span of zero moment and lpi taken as 0.7 times the effective span of the beam). Design moment of beam (and slab) monolithic with its support providing rotational restraint should be that at support face if the support is rectangular and 0.2Ø if the support is circular with diameter Ø. But the design moment after reduction should not be less than 65% of the support moment. For a simply supported or continuous beam, the clear distance between restraints should be less than or equal to 60bc or 250bc 2/d if less; and for a cantilever with lateral restraint only at support, the clear distance from cantilever to support should be less than or equal to 25bc or 100bc 2/d if less where bc is the breadth of the compression face of the beam and d is the effective depth. Usually the slenderness limits need be checked for inverted beams or bare beam (without slab) We can, as far as our building structures are concerned, roughly adopt condition 1 (Mild) for the structures in the interior of our buildings (except for bathrooms and kitchens which should be condition 2), and to adopt condition 2 for the external structures. Nevertheless, the â€Å"Code of Practice for Fire Resisting Construction 1996† should also be checked for different fire resistance periods (FRP). So, taking into account our current practice of using concrete not inferior than