Production and Operation Management free essay sample

State the important considerations for locating an automobile plant. Following are the important considerations for locating a Automobile plant (1) Market. (2) Transportation. (3) Electricity. (4) Communitys liking for having a plant in their locality. (5) Taxation. (6) Labour availability. (7) Water supply. (8) Transperency and ease of land accusition. (9) Availability of raw materials. (10) cheap land (11) train station (12) local distriboutors (13) waste disposal system (river etc) (14) Government Policy, SEZ, etc.Q2. Explain essentials of Project Management Philosophy All projects share one common characteristic – the projection of ideas and activities into new endeavours. The ever-present element of risk and uncertainty means that the events and tasks leading to completion can never be accurately foretold. Examples abound of projects that have exceeded their costs by enormous amounts, finishing late or even being abandoned before completion. Such failures are far too com mon and are seen in all kinds of projects in industry, commerce and the public sector. The purpose of project management is to predict as many of the dangers and problems as possible and to plan, organize and control activities so that projects are completed successfully in spite of all the risks. We will write a custom essay sample on Production and Operation Management or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page This process should start before any resource is committed and must continue until all work is finished. The primary aim of the project manager is for the result to satisfy the project sponsor or purchaser and all the other principal stakeholders within the promised timescale and without using more money and other resources than those that were originally set aside or budgeted. For any technical assistance program to be successful, it is important to have professional management systems in place. We are guided by a set of principles for the design and implementation of technical assistance projects in developing countries. These emphasize: Dialogue and Cooperation: We emphasize a consultative, inclusive approach to project implementation. The involvement of counterparts in the design and implementation is essential to ensure that change management programs are effective and supported. Ownership and Empowerment: It is important to emphasize the development of local talent. We are keen on empowering staff based on solid risk management approaches and motivational strategies. We enjoy coaching project staff and interns in field offices on all aspects of project management, including human resources, turn around and change management, donor relations, internal financial control and work planning. Integrity and Accountability: Especially in difficult environments such as Afghanistan and many other developing countries, it is important to adhere to the highest standards of professionalism, integrity, client concern and service. Internal Financial and Risk Controls: Strong internal risk management systems, such as those based on the COSO, AS/NZS 460:2004 and ISO 30001 are critically important to the implementation of programs, especially larger programs. Quality and Innovation: We try to utilize the latest technology in support of project implementation. Content Management Systems such as joomla and Drupal are examples of how free opensource software that can be used to manage projects document repository and to provide information on the programs to counterparts in different languages. However a good project management methodology provides a framework, process, guidelinesand techniques to greatly increase the chances of being successful, and therefore providesvalue to the project. ? Define the project ? Reduce it to a set of manageable tasks ? Obtain appropriate and necessary resources ? Build a team or teams to perform the project work ? Plan the work and allocate the resources to the tasks ? Monitor and control the work ? Report progress to senior management and/or the project sponsor ? Close down the project when completed Review it to ensure that the lessons are learnt and widely understood Q3. Several different strategies have been employed to assist in aggregate planning. Explain these in brief? Aggregate planning is an operational activity that does an aggregate plan for the production process, in advance of 2 to 18 months, to give an idea to management as to what quantity of materials and other resources are to be procured and when, so that the total cost of operations of the organization is kept to the minimum over that period.. The quantity of outsourcing, subcontracting of items, overtime of labour, numbers to be hired and fired in each period and the amount of inventory to be held in stock and to be backlogged for each period are decided. All of these activities are done within the framework of the company ethics, policies, and long term commitment to the society, community and the country of operation. Aggregate planning has certain prerequired inputs which are inevitable. They include: Information about the resources and the facilities available. Demand forecast for the period for which the planning has to be done. Cost of various alternatives and resources. This includes cost of holding inventory, ordering cost, cost of production through various production alternatives like subcontracting, backordering and overtime. Organizational policies regarding the usage of above alternatives. Aggregate Planning is concerned with matching supply and demand of output over the medium time range, up to approximately 12 months into the future. The term aggregate implies that the planning is done for a single overall measure of output or, at the most, a few aggregated product categories. The aim of aggregate planning is to set overall output levels in the near to medium future in the face of fluctuating or uncertain demands. Aggregate planning might seek to influence demand as well as supply. The aggregate production plan is midway between short-range planning and long-range planning. Aggregate planning includes the following factors: 1. Work force size and composition 2. Demand forecasts and orders 3. Raw material planning 4. Plant capacity management 5. Utilizing outside subcontractors 6. Inventory management 1. Pure Strategies:- There are three focused or pure strategies are†¦Ã¢â‚¬ ¦ ? Vary production to match demand by changes inemployment. ? Produce at a constant rate and use inventories. ? Produce with stable workforce but vary the utilization rate. 2. Chase demand Strategy In this strategy the production output is increased or decreasedaccording the demand. This is possible if workers are added or removed to vary the input capacity. It also means that if thesystem is dominantly automated then it will be either under or over-utilised as the as the situation demands. 3. Level production Strategy :- In this case, the production output is held constant irrespective of the changes in demand from period to period. Usually, theaverage demand is taken as the constant output. When thedemand exceeds the average output, in some months there isshortage and when the output is above the average there issurplus and build-up of inventory. However, wherever possibleexcess output can be used to accumulate inventory and thatinventory is maintained. 4. Stable work-force Strategy :- in this strategy the work force ismaintained at the same level on regular time. Production output isvaried either by overtime or by building up inventory. However, if the demand falls then the production output is decreased andsome workers may become idle. 5. Mixed Strategies:- in mixed strategies, the aggregate planner has a wide variety of choices by mixing to or more strategy. Thenumber of mixed strategies in alternative production plans isalmost limitless. However, based on the realities of the situations,the number of practical solutions is limited. 6. Mathematical Planning Models :- Mathematical models attempt to refine or improve upon the trail-and-error approaches. However, the solution generated may notbe feasible and need to be refined. A popular technique is theapplication of transportation algorithm which is a special case of the linear-programming model. It views the aggregate planningproblem as the linear-programming model. Q4. Illustrate the different methods by which quality is sought to be achieved using various tools and techniques Quality control techniques are specific and procedures adoptedusing data, foe determining a particular aspect of quality to arrive at decisions which are conclusive. Each technique developed andtested by senior personnel or consultants will be simple enough tobe understood , implemented and interpreted by the personnel for their immediate use. Some of the quality control technique are :1. Quality at the source. 2. Quality control tools . 3. Acceptance sampling Quality at the source The concept of quality makes the production worker responsiblefor inspecting his /her own work and for taking corrective actions since inspection is done immediately after a job is done , findingthe cause of the error with clarity aids in faster rectification. Every worker has the authority to stop production, if he /she findsome serious defect . This puts responsibility for quality on theworkers and gives them pride their work . Help should always beavailable from the quality control personnel to help workersunderstand the implications of the above actions. This bringscooperation and improves the achievement. The information generated may be used to effect improvements at the suppliers’ end also. The entire process brings in openness, commitment,participation and helps in achieving quality. ? Quality control tools The most popular and widely used tools are called as 7 QC tools. These includes the following Flow chart ? Check sheet ? Histogram ? Pareto analysis ? Scatter diagram ? Control chart ? Cause and effect diagram 1. Flow Chart ;- flow chart is a visual representation of a processshowing the various steps. It helps in locating the points at whicha problem exists or an improvement is possible. Detailed data canbe collected, analysed, and methods for correction can bedeveloped using flow charts. The various steps includes ? Listing out the various steps or activities in particular job. ? Classifying them as a procedure or a decision. 2. Check sheet :- are used to record the number defects, types of defects, locations at which they are occurring , times at whichthey are occurring, and workmen by whom they are occurring . The sheet keeps a record of the frequencies of occurrence withreference to possible defect causing parameters. It helps toimplement a corrective procedure at the point where thefrequencies are more. 3. Histogram :- are graphically representations of distribution of Data. They are generally used to record huge volumes of dataabout a process. They reveal whether the pattern of distributionhas single peak, or many peaks and also the extent of variationaround the peak value. This helps in identifying whether theproblem is serious. The various types of visual patterns have been established along with relevant interpretations whichhelps us to identify the problem. 4. Pareto Analysis :- is a tool for classifying problem areasaccording to the degree of importance and attending to themost importance and attending to the most important ones. Pareto principles , v erbally stated as â€Å"vital few; trivial many† is also called 80-20 rule because is to observe that 80% of theproblem that we encounter arise out of 20% of items. Q5. Explain the basic competitive priorities considered while formulating operations strategy by a firm? After collectively considering the products and services demanded by customers, strengths and weaknesses of competitors, the environment, and the firm’s own strengths, weaknesses, cultures, and resources, proficient firms can formulate their vision as expressed through the mission statement. This statement expresses the organization’s values and aspirations; basically its reason or purpose for existence. Based on this mission statement the firm will formulate its business strategy. This business strategy is a long-term plan for accomplishing the mission set forth in the mission statement. Each function within the business can then derive its own strategy in support of the firm’s overall business strategy (financial strategy, marketing strategy, and operations strategy). Operations strategy is the collective concrete actions chosen, mandated, or stimulated by corporate strategy. It is, of course, implemented within the operations function. This operations strategy binds the various operations decisions and actions into a cohesive consistent response to competitive forces by linking firm policies, programs, systems, and actions into a systematic response to the competitive priorities chosen and communicated by the corporate or business strategy. In simpler terms, the operations strategy specifies how the firm will employ its operations capabilities to support the business strategy. Operations strategy has a long-term concern for how to best determine and develop the firm’s major operations resources so that there is a high degree of compatibility between these resources and the business strategy. Very broad questions are addressed regarding how major resources should be configured in order to achieve the firm’s corporate objectives. Q6. Explain briefly the four classification of scheduling strategies?

Free Essays on Computers And Accounting

Computers, Society, and Accounting Abstract In today’s technologically-minded society, computers play an integral role in just about every aspect of business, and especially in the field of accounting. Accountants are expected to constantly be updating information on a timely basis, and the wonderful computer allows such a process. Normal calculations that were once done with a calculator and a pen and notepad can now be done much more quickly and accurately with a spreadsheet program. Electronic spreadsheets allow one to calculate what they call â€Å"what if† numbers without screwing everything up. These spreadsheet programs also allow you to easily keep sale and inventory records as well as create graphs which can potentially predict future expenses for your business. These such programs have become vital to modern businesses and companies. Many other accounting processes have also been simplified with the use of computers, such as Accounts Payable, Inventory Control, and also Purchasing and Receiving. Software programs involved in the Accounts Payable aspect allow one to simplify the payment handling and selection and also will check the accuracy of the vendor’s invoice. The inventory control will actually track the inventory and reduce the investment in inventory. The purchasing and receiving module creates buying orders and it tracks their progress. From what’s been mentioned above, there are obviously many benefits of computer usage in accounting. The most important would probably be the speed in which the processes are completed. Manually executing these tasks would take at least twice as long and would potentially lead to money loss. As with anything involving computers, mistakes can easily be made if there is a problem with the software or even an operator defect. Some disadvantages to a reliance on computers include errors on data entry that the computer cannot pick up and also fraud and embez... Free Essays on Computers And Accounting Free Essays on Computers And Accounting Computers, Society, and Accounting Abstract In today’s technologically-minded society, computers play an integral role in just about every aspect of business, and especially in the field of accounting. Accountants are expected to constantly be updating information on a timely basis, and the wonderful computer allows such a process. Normal calculations that were once done with a calculator and a pen and notepad can now be done much more quickly and accurately with a spreadsheet program. Electronic spreadsheets allow one to calculate what they call â€Å"what if† numbers without screwing everything up. These spreadsheet programs also allow you to easily keep sale and inventory records as well as create graphs which can potentially predict future expenses for your business. These such programs have become vital to modern businesses and companies. Many other accounting processes have also been simplified with the use of computers, such as Accounts Payable, Inventory Control, and also Purchasing and Receiving. Software programs involved in the Accounts Payable aspect allow one to simplify the payment handling and selection and also will check the accuracy of the vendor’s invoice. The inventory control will actually track the inventory and reduce the investment in inventory. The purchasing and receiving module creates buying orders and it tracks their progress. From what’s been mentioned above, there are obviously many benefits of computer usage in accounting. The most important would probably be the speed in which the processes are completed. Manually executing these tasks would take at least twice as long and would potentially lead to money loss. As with anything involving computers, mistakes can easily be made if there is a problem with the software or even an operator defect. Some disadvantages to a reliance on computers include errors on data entry that the computer cannot pick up and also fraud and embez... Free Essays on Computers And Accounting Computers, Society, and Accounting Abstract In today’s technologically-minded society, computers play an integral role in just about every aspect of business, and especially in the field of accounting. Accountants are expected to constantly be updating information on a timely basis, and the wonderful computer allows such a process. Normal calculations that were once done with a calculator and a pen and notepad can now be done much more quickly and accurately with a spreadsheet program. Electronic spreadsheets allow one to calculate what they call â€Å"what if† numbers without screwing everything up. These spreadsheet programs also allow you to easily keep sale and inventory records as well as create graphs which can potentially predict future expenses for your business. These such programs have become vital to modern businesses and companies. Many other accounting processes have also been simplified with the use of computers, such as Accounts Payable, Inventory Control, and also Purchasing and Receiving. Software programs involved in the Accounts Payable aspect allow one to simplify the payment handling and selection and also will check the accuracy of the vendor’s invoice. The inventory control will actually track the inventory and reduce the investment in inventory. The purchasing and receiving module creates buying orders and it tracks their progress. From what’s been mentioned above, there are obviously many benefits of computer usage in accounting. The most important would probably be the speed in which the processes are completed. Manually executing these tasks would take at least twice as long and would potentially lead to money loss. As with anything involving computers, mistakes can easily be made if there is a problem with the software or even an operator defect. Some disadvantages to a reliance on computers include errors on data entry that the computer cannot pick up and also fraud and embez...

How to Teach Essay Writing for ESL Classes

How to Teach Essay Writing for ESL Classes As ESL students become more fluent, its time to focus on how to use that fluency in specific tasks such as making a presentation or writing an essay. The advanced topics you choose should depend upon what your students have planned for the future. In classes with mixed objectives, theres a need for balance to make sure that students who dont necessarily need the task at hand still profit from the lesson. This is never truer than when teaching essay writing skills. Classes which are preparing for academic English objectives require the skills while business English, or English for specific purposes classes, might find the entire exercise a waste of their time. Chances are you have a mixed class, so it is recommended to tie essay writing skills to other important skills such as using equivalencies, the proper use of linking language and sequencing in writing. Students not interested in essay writing skills will gain valuable experience in developing these skills regardless of the task. Build Toward Essay Writing Skills Start by Modeling Clear Writing at the Sentence Level The best way to approach essay writing skills is to start at the sentence level. Once students have learned to compose simple, compound and complex sentences, they will have the tools necessary to write longer documents such as essays, business reports, formal emails, and so on. All students will find this help invaluable. Focus on Equivalencies I find the best place to start is with equivalencies. Before moving on, make sure students understand sentence types by writing a simple, compound and complex sentence on the board. Simple Sentence: Mr. Smith visited Washington three years ago.Compound Sentence: Anna advised him against the idea, but he decided to go nonetheless.Complex Sentence: Since he was in Washington, he took the time to visit the Smithsonian. Build up students knowledge of equivalencies by beginning with FANBOYS (coordinating conjunctions), moving on to subordinating conjunctions, and finishing with other equivalencies such as preposition and conjunctive adverbs. Focus on Linking Language Next, students will need to link their language, creating organization through the use of linking language including sequencing. It helps to write out processes at this point. Ask students to think of some process, then use sequencing language to connect the dots. Its a good idea to ask students to use both numberings in a sequence of steps and linking through time words. Writing Essay Practice Explaining Essay Writing on the Board Now that students understand how to combine sentences into larger structures, its time to move on to writing essays. Provide a simple essay to students and ask them to identify various structures / written objectives: Underline linking languageFind examples of FANBOYS, subordinating conjunctions, conjunctive adverbs, etc.What is the main idea of the essay?How does the essay seem to be organized?Essays generally contain an introduction, body, and conclusion. Can you identify each? I like to help students by first explaining that an essay is like a hamburger. Its certainly a crude analogy, but students seem to get the idea of the intro and conclusion being like the buns, while the content is the good stuff. Essay Writing Lesson Plans There are a number of lesson plans and resources on this site that help out with the many steps involved in developing the necessary writing skills. To focus on combining simple sentences into more compound structures, use this ​simple to compound sentence worksheet. Once students are comfortable at the sentence level, use the essay writing workshop  - a total of four lessons - to proceed from brainstorming, through outlining to final essay production. Challenges With Teaching Essay Writing As stated at the beginning of this introduction, the main issue with essay writing is that it is not really necessary for every student. Another issue is that traditional five paragraph essays are certainly a little old school. However, I still feel that understanding the structure of your basic hamburger essay will serve students well when putting together future written work.

Nutrition and Body Composition Essay Example | Topics and Well Written Essays - 1500 words

Nutrition and Body Composition - Essay Example Whole body composition comprises both fat-free body mass (FFM) and total body fat. The former is inclusive of water, bone matter and muscle and the latter pertains to essential fat and storage (stored) fat. Accordingly, Heyward and Stolarczyk (1996) assert that whole-body composition is of interest in terms of sports and exercise, obesity assessment and control of body weight. Of specific importance is the need to consistently ensure that total body fat is maintained at an optimal level (Heyward & Stolarczyk, 1996:4). The total body fat element is critical to optimal human physiological capacity. Thus, too little fatness, as is witnessed in individuals with eating disorders and exercise addiction as well as those with certain diseases, e.g. cystic fibrosis, can eventually result in a serious physiological dysfunction (Heyward & Stolarczyk, 1996:5-6). Through different body density measurements, which utilise established equations and corrections, one is able to calculate the ratio of fat-free mass to fat mass in a human body. This is based upon the ‘much lower density’ of the prevailing fat compartment in terms of their ratio (Heyward & Stolarczyk, 1996:8). However, concerning FFM, the bone matter is denser than the muscle structure. This may lead to the over-estimation of the fat percentage present. This is if there is either relative increase in the body muscle mass (during training) or relative loss of the prevailing bone density as found in individuals suffering from osteoporosis (Heyward & Stolarczyk, 1996:9). A variety of avenues are available through which effective body composition can be measured. This is especially in regard to the ‘approximate’ measurement of body fat percentage present. The most commonly employed method is through use of gun calipers, in measuring the subcutaneous fat thickness at various places on the body. Bioelectrical impedance analysis (BIA), on

Joe Keller Character Analysis Essay Example | Topics and Well Written Essays - 1000 words

Joe Keller Character Analysis - Essay Example In the play’s plot, there exists other characters who play significant roles in the story’s development, characters who will help in expounding on this papers thesis that revolves around dynamism and static nature. This paper will look in depth at the dynamic character of Chris, who is the son to Joe and Katie. Chris is a dynamic person because of his anticipation to see change, his romantic relationship with Kate and because of his heroism in the war. Chris Keller was a soldier who found his way home after the war and was disturbed by what he saw when he came back. He was principally troubled by the fact that the world and in specificity his parents’ home and neighborhood was unperturbed regardless of the war ordeals. He is naturally dynamic because of his anticipation to see change as a result of the war in which he had fought hard to survive. Chris is portrayed as a man who had succumbed to change as a result of the war in which he had observed some of his col leagues fight do hard but eventually died. â€Å"We used to shoot a man who acted like a dog, but honor was real there ...But here? This is the land of the great big dogs, you don't love a man here, and you eat him. That's the principle; the only one we live by - it just happened to kill a few people this time, that's all. The world's that way...† (Andrew 167). ... Chris Keller is a dynamic person on the basis of his romantic relationship to Ann, who is a former girlfriend to Chris’ brother, Larry. In the beginning Chris and Ann had fallen in love as they used to write letters to each other. Chris even requested her to come to his home to propose marriage. Chris is a dynamic character because at first he wanted to be with Ann, but at the end of the play he no longer wants her, and this is illustrated in the conversation they have close to the end of the play. The conversation goes like â€Å"Ann: I am coming with you†¦Chris: No, Ann, I can’t make that†¦ Ann: I do not ask you to do anything about Joe. I swear I never will; Chris: Yes, you do. In you hart you always will.† Chris did not want to be with her anymore because he started thinking that she is going to look at him like in his dad. In the beginning he believed in honest of his father and at the end he changed his mind. At the end of the play, we find Chris to be a person who came to be devastated after learning of his father’s deceit and outright lies in the case of selling damaged cylinder heads to the American Air force fighting in World War two. For three years, Joe had lied about his involvement in the sale of the damaged cylinder heads and entirely blamed his business associate Steve Deever of the sub-standard products. Steve was found blameworthy and incarcerated whereas Gorge was set free. Fate would play its role when Steve’s son, George pays visits him (Steve) in jail. George learns from his father how Joe had set him up whereas he was innocent. The enraged George finds his way to Joe’s family house to face him and his family about his deceitful actions. It is in this scenario that

Passive Optical Networks (PON)

Passive Optical Networks (PON) With the popularity of broadband services of the terminal users the demands for bandwidth in the access network is rapidly increasing. Rapid increase of global data traffic and massive deployment of new networks are becoming a key environmental, social and economic issue. The access network consumes about 70% of overall network energy. Passive Optical Networks (PON) has been considered to be one of the most promising solutions for access networks due to its immense bandwidth and low cost infrastructure. Wavelength Division Multiplexing Passive Optical Networks (WDM-PON) provides a solution for having longer and larger capacity networks comparing with existing PON systems which can meet the ever increasing bandwidth demand of next generation ac-cess networks. Moreover, the combination of Orthogonal Frequency Division Multi-plexing (OFDM) and WDM-PON technique is a subject of great interest to increase the system capacity and dispersion tolerance. Coherent detection OFDM method has mor e prominent performance than direct detection method. For the practical implementation of WDM-OFDM-PONs, low-cost Optical Network Units (ONUs) and Optical Line Termi-nals (OLTs) are of most critical importance, in particular, avoiding a wavelength-specific laser source at each ONU. To address this issue, wavelength reuse concepts such as Trav-eling Wave Semiconductor Optical Amplifier, Wideband Traveling wave SOA and Re-flective SOA have been implemented in WDM-OFDM-PON. Among these, RSOA per-forms better than the others. To further reduce the system cost a WDM-OFDM-PON architecture with simplified structure by using Vertical-Cavity Surface-Emitting Laser (VCSEL) as transmitter at OLT and ONU. All these simulations are done using OptiSys-tem 12.0 software. The combination of an exponential increase in bandwidth-intensive applications and customer base, has resulted in the rapid increase of fiber networks in the access network segment in recent years. In terms of fiber access technology, the point-to-multipoint passive topology in the form of the Passive Optical Network (PON) has been proven to be beneficial to both customers and operators. Due to rapid increase of global data traffic and bandwidth demands, massive deployment of new network, is becoming a key environmental, social and economic issue. To address this issue, great effort has been ex-pended on researching the high-speed, cost-effective, flexible bandwidth allocation and future-proof Next Generation Passive Optical Network (NG-PON) system. Among these techniques, WDM based PON systems have attracted a great deal of research and devel-opment interest, due to their capability of providing cost-effective way for increasing the overall bit rate and transmission reach of network s. The access network, also known as the first-mile network, connects the service provider Central Offices (COs) to businesses and residential subscribers. An access net-work is a part of a telecommunications network which connects subscribers to their im-mediate service providers. This network is also referred to as the subscriber access net-work, or the local loop. The bandwidth demand in the access network has been increasing rapidly over the past several years. Active Optical Network (AON), the first based access network has been characterized by a single fiber which carries all traffic to a Remote Node (RN) mainly electrically powered switching equipment such as a switch or a router that is placed close to the end users from the central office. In this AON architecture, later the active node is replaced with a passive optical power splitter/combiner leading to the development of Passive Optical Network (PON). Optical Orthogonal Frequency Division Multiplexing (OFDM) technique has re-cently been a promising technique in access networks due to its high spectral efficiency and robust dispersion tolerance. OFDM, is a form of signal modulation that divides a high data rate modulating stream placing them onto many slowly modulated narrow band close-spaced sub-carriers, and in this way is less sensitive to frequency selective fading. Furthermore, the OFDM is widely considered as one of the strongest candi-date for WDM-based PON system, owing to its unique advantages of superior toler-ance to chromatic dispersion impairments, dynamic provision of multi-granularity band-width allocation both in time and frequency domains. WDM-OFDM-PON, combining the advantages of WDM and OFDM techniques, can provide higher data rate and more flexible bandwidth allocation for end users. Nonetheless, OFDM modulation modules, consisting of high-speed Digital Signal Processing (DSP) chips, Digital-to-Analog Con-verter s (DAC), and E/O modulators, are needed for the generation of optical OFDM sig-nals in WDM-OFDM-PON. These components consume much more energy. Moreover, each OFDM modulation module is fixed for one Optical Network Unit (ONU) group in conventional WDM-OFDM-PON, which causes a rough granularity and wastes a large amount of bandwidth resource since the users do not fully utilize the network capacity all the time. Therefore, it is of great significance to design an energy-efficient and cost effective WDM-OFDM-PON system with high data rates compatible with large num-ber of users. This can be accomplished by using wavelength remodulation methods for bandwidth utilization and VCSELs for cost effectiveness. Objectives of the Project The main objectives of this project are: Simulation and performance analysis of Wavelength Division Multiplexing- Or-thogonal Frequency division Multiplexing- Passive Optical Network (WDM-OFDM-PON) systems for different data rates Simulation and performance analysis of Wavelength Division Multiplexing- Or-thogonal Frequency Division Multiplexing -Passive Optical Network (WDM-OFDM-PON) systems using wavelength reuse by Traveling wave SOA (TWSOA) Wideband TWSOA (WBTSOA) Reflective SOA (RSOA) Simulation and performance analysis of bidirectional WDM-OFDM-PON with dif-ferent transmission length and users using VCSELs Report Outline This report contains six chapters. Chapter 1 gives an introduction about the rel-evance of the project and also convey the main objectives of the project. The second chapter describes about the theories and literature survey of the project. This chapter begins with the basic access networks and describes the various terms relevant to the project. The terms like PON, WDM, OFDM etc are included. Chapter 3 describes the system model for the design. Here explains the basic block diagram representation of the major network technologies used. Chapter 4 explains the simulation procedures, platform used for simulations and details of each section and subsystem in the simulation process. Chapter 5 deals about the results obtained after the simulations and the major inferences got from these results. Sixth chapter concludes the project with findings followed by references section.

Mass Media and Violence

Mass Media and Violence Is it hard to believe that just forty years ago only a few privileged American families had televisions in their home? In recent years, it is estimated that a whopping ninety-eight percent of Americans have one or more television sets in their home. Motion pictures, televisions, video games, and the internet are just some forms of mass media that have emerged since the last century. With the rise of mass media, the increase of violent behavior has increased as well. Mass media influences many factors of people’s lives such as moral beliefs, behavior, and values.Violence in mass media is greatly dominating our society and continues to do so. It causes aggression and is a growing epidemic among the youth. Scott Barbour praises the American Academy of Pediatrics: â€Å"The vast majority of studies conclude that there is a cause-and-effect relationship between media violence and real-life violence. This link is undeniable and uncontestable. † It is n o lie when they say the average American child witnesses 200,000 acts of violence on TV by the age of eighteen. Watching violent TV shows or movies promotes aggression.People want to follow what everyone else is doing so they will follow and may even commit what these actors are doing on the television. According to L. R. Huesmann, research shows that fictional TV and film violence contribute to both short and long-term increase in aggression and violence in young viewers. Children are in particular are affected by violence, aggression, or sexual abuse in our media because of their helpless psychology. Some forms of aggression include truancy, lack of social skills, and failing out of school. It is no doubt that the media that promotes violence and aggression is the same one to have an effect on society.This is a monkey see, monkey do world and people may not even know that they being effected, but they are. Especially with the next generation coming up, they sort of are growing up with the violence. It becomes more and more traumatic as they see it more. According to Mughal, children and teen’s values and beliefs will become more aggressive. He goes on to say that media portrays war as entertainment [in video games]. War is not entertainment and nobody wins in real war while real people are getting killed. This illustrates another problem: can ociety depict from reality and fantasy? Most of the recent shootings in the United States were committed by the youth. Is it just a coincidence or is it because of the hostility displayed on their television sets? Many people think that violence in media is entirely based on real life. They proclaim that since we live in the real world, the media cannot possibly be more violent than what we already know. Actually, it is impossible for people to know all horrific events that have taken place. Also, some would say that it is up to the individual to decide what to be exposed to. That is not true, since you are expos ed to cruel media whether you know it or not. Even on the news, â€Å"Crimes such as murders, robberies, and abuse are shown as deviant behavior† rather than actual violence. In conclusion, violence in media does affect society. It is a growing wave and teaches aggression. Some solutions could be placing regulations on TV and motion picture producers. If gun makers have regulations on guns they make, why not placing rules on producers? Also, parents should be aware of what their children watch.There is no way to be completely censored of the media but it can be kept at a minimum. Times have changed since the last show of Leave it to Beaver. If there was less violence in the media, there will be less violence in the real world as well. Works Citied Cline, Victor. â€Å"How the Mass Media Effects Our Values and Behavior. † . N. p. , n. d. 20 Dec 2012. Dean, Gregory. â€Å"A Mediated Culture. † Marketogrpahy N. p. 23 Nov 2010. Web. 19 Dec 2012. Barbour, Scott. â₠¬Å"What Causes Teen Violence? † Teen Violence, pg 49-51. San Deigo, CA. 1999. Print. Huesmann, L.R. and Taylor, Laramie. â€Å"The Role of Media Violence in Violent Behavior. † 2006. PDF. 21 Dec 2012. Mughal, M. A. â€Å"Mass Media and its Influence on Society. † Opinion Maker. N. p. , 18 Jan. 2011. Web. 22 Dec. 2012. Norton, Eric. â€Å"The Dangers of Violence in Modern Mass Media. † Center for Community Health Partnerships. N. p. , 22 June 2009. Web. 21 December 2012. ——————————————– [ 2 ]. Cline, Victor. â€Å"How the Mass Media Effects Our Values and Behavior. † . N. p. , n. d. 20 Dec 2012. [ 3 ]. Dean, Gregory. â€Å"A Mediated Culture. † Marketogrpahy N. p. 3 Nov 2010. Web. 19 Dec 2012. [ 4 ]. Barbour, Scott. â€Å"What Causes Teen Violence? † Teen Violence, pg 51. San Deigo, CA. 1999. Print. 4 Barbour, 49 [ 6 ]. Huesmann, L. R. and Taylor, Laramie. â€Å"The Role of Media Violence in Violent Behavior. † 2006. PDF. 21 Dec 2012. [ 7 ]. Norton, Eric. â€Å"The Dangers of Violence in Modern Mass Media. † Center for Community Health Partnerships. N. p. , 22 June 2009. Web. 21 December 2012. [ 8 ]. Mughal, M. A. â€Å"Mass Media and its Influence on Society. † Opinion Maker. N. p. , 18 Jan. 2011. Web. 22 Dec. 2012. [ 9 ]. Norton, Eric. [ 10 ]. Dean, Gregory.