Tilting Trains

Vishveshwaraya Technological University, Belgaum TILTING TRAINS DEPARTMENT OF MECHANICAL ENGINEERING [pic] GUIDE : VINAY B U PRESENTED BY : ARUN USN : 4SF09ME014 SYNOPSIS With the invention of new technologies in various features of the railway transportation the human beings are more benefited. One of the technology that the railway engineers thinking is about the â€Å"THE TILTING TRAINS†, which provide the passengers and the goods to reach the destination with a minimum time.The technology involved in TILTING TRAIN is that when ever the trains pass over the curves and turnings of the railway tracks the compartments of the train is tilted to a certain angle by which the trains can travel with no reduction in speed. By adopting this technology of TILTING TRAINS the fuel consumed by the trains can be saved ,the passengers can feel comfort and also time can be saved. CONTENTS 1. Introduction 2. Problem with corners 3. What is tilting train? 4. Why tilting helps? 5.How do trains tilt? 6. Problems associated in tilting the track 7. Passenger comfort ness 8. Countries who developed the tilting technology 9. Advantages and Disadvantages of tilting trains 10. Summary 11. Bibliography INTRODUCTION Train is a mass transporter, which transports humans and goods from one place to another place. We have trains, which run by diesel and electricity. Among goods and passenger trains the most concerned one is passenger trains. The passenger train should move quickly with high speeds.The rail road will not be always straight it should pass through curves and turns. We all know that if you are driving in your car and you take a turning at speed you feel centrifugal forces. Well it is no different from trains, if a train takes a turning at speeds centrifugal forces will be experienced. The major problem for any trains is to pass over the curves and turns of the railroads. If the train moves with the same speed at the curves and turns the train may slip from the track, so the speed of the train will be slowdown drastically to avoid slip.This results in wastage of fuel and in turn reduces the speed of the train, which is main consideration for the passenger trains. One of the solution found to avoid this situation is the tilting trains. PROBLEMS WITH CORNERS We all know that if your driving in your car and you take a corner at speed you feel centrifugal forces. Well it is no different from trains; if a train takes a corner at speed then centrifugal forces come in. Often train operating companies face a decision for building a high speed railway transport system†¦ hey can either invest money in the train to make it tilt but use existing railway lines, or they invest money in a new railway but don't need to spend money on expensive tilting mechanisms. This is why TGV, and ICE and bullet trains do not tilt, because they have their own dedicated high speed railway lines where curves are built with very high radii. It is worth pointing out that the ce ntrifugal force is a function of v2/r where v is the velocity and r is the radius. This means if you double the velocity, you quadruple the centrifugal force.Similarly, if you want to triple the velocity but keep the centrifugal force the same, you must increase the radius by a factor of nine! Something not always possible. This is why even apparently gentle curves can be much more of a problem with high speeds than one might thing, because the force rises with the square of velocity. WHAT IS TILTING TRAIN ? Tilting train consists of a tilting mechanism that enables increased speed on regular tracks. In the upper part of the tilting trains that is in which the passengers are seated can be tilted sideways.During the motion of the train if the train has to steer to left in a left turning the coaches of the train will be tilted to the left in order to compensate the centrifugal push to the right and conversely during the right turn. These trains are constructed such that inertial force s which cause the tilting can be controlled by a computer. If the trains travel at speeds more than the specified speeds at the turnings of the railway tracks their will be centrifugal forces acting on the train. Due to these centrifugal forces the train may slip and push out of the tracks.But in case of tilting trains which will not happen, because of the reason that centrifugal forces will be compensated by tilting mechanism. WHY TILTING HELPS? When sitting on a corner going at speed there are two forces acting on you, gravitational force and the centrifugal force which is accelerating you into the corner. In physics when two forces act, then this causes a resultant force. The resultant force will push you into your seat and to the side. However if the train is tilting, then the normal contact force of you on your seat will be the same as the resultant force you are experiencing.This means as far as the passenger is concerned he or she is just being pulled into his or her seat, an d he or she is used to that so no discomfort is felt. This is true also of aero planes, commercial planes tilt a large amount, up to 30 degrees when going around corners in some cases to cater for passenger comfort. As the tilting of the aero plane is to get rid of the problem of centrifugal forces, or more accurately to disguised the centrifugal forces as a part of gravity as far as the passengers are concerned. The only way you know if the aero plane is tilting is to look out of the window.Trains that tilt can go up to 25% to 40% faster around curves than conventional trains without upsetting the passengers, and as mentioned before this can significantly increase average speeds and cut journey times. HOW DO TRAINS TILT? Carriages have tilting mechanisms. Obviously the bogies cannot tilt because they ride on the track and must follow the path of the track. So the coaches have to tilt on the bogies. The way they do this is simple, the bogie acts a fulcrum in the center and it is fre e to tilt either side. Then pistons control how much the coach tilts. The pistons are controlled by a small computer, which uses a spirit level.The spirit level is used to check if things are horizontal remember, i. e. at right angles to the resultant force acting. Normally this force is gravity, but when going round a corner the resultant is a combination of gravity and centrifugal forces. This means the spirit level indicates it is no longer horizontal, so the computer adjusts the pistons until horizontal is read. Again this will not be horizontal to the ground, but as far as anyone on the train is concerned it will be horizontal, keeping the passengers happy. In the early days they tried to use inertial force to let the trains tilt†¦ i. e. hey would have no mechanism to make them tilt but the carriages would have a low center of gravity so centrifugal forces on the carriage would cause them to tilt. This proved unsuccessful. PROBLEMS ASSOCIATED IN TILTING THE TRACK Well on h igh speed lines the track in the UK is heavily banked up on corners, although going in a high speed train you don't notice it at all. Occasionally when a high speed train in the UK comes to a stop because of a red signal or something on a curve you can really notice how much its slanted, on a stop on a curve put a bottle on the floor and will slide across to the other side.However there are limitations with tilting tracks, first of all the banking has to be designed with a specific speed in mind. A banked up track meant for 125mph trains is going to cause discomfort to passengers in a local 75mph train, as when a slower train goes round a banked corner it will make passengers feel like they are falling to a side. Of course you could build dedicated high speed lines, but then you would engineer them without tight curves. This limits the extent to which tracks can be banked up. If the rack is banked too much for really fast trains, then if any train comes to a stop on the curve due to a red signal the slant will cause discomfort to passengers. Also arranging for the overhead pantrograph to make proper contact with a wire above a banked curve is a little tricky. Clearly trains themselves need to tilt, then you get the double benefit of tilted track and tilting train, and the train can tilt to exactly suit the speed it is going at. PASSENGER COMFORTNESS One might think it is not safe to push a train round a corner at high speed. Indeed that is true. However the crucial thing is that the speed at which it becomes unsafe, i. . the speed at which there is enough force to push the train off the track is incredibly high. In fact the force needed would be enough so that all passengers on the train couldn't move and would be stuck to the sides of the train. This implies that there is scope for increasing the speed of a train round corners a great deal without it becoming unsafe, however passengers will object. There are two reasons why it is bad for passengers. I have be en on a late running Inter City 125 and it took a corner at some speed although only about 90mph and the corner wasn't tight enough to say see the train at the other end by looking out of the window.The corner wasn't tight enough to notice turning either. However you could feel the forces definitely, and empty cups rolled across tables, bags creaked and I felt pushed against the wall. Any faster and it would be extremely uncomfortable for passengers and they would rather the train slowed down and take a little longer. Also companies don't like to run trains at speed round corners because it upsets passengers, as when exposed to turning forces they may become worried the train is going to fly off the tracks (which incidentally has never happened). This might make people nervous about traveling on high speed trains.The reason no one is ever nervous about traveling at nearly 200mph on a train is because it is smooth and constant. If it was doing corners at these speeds people wouldn't like it. People get freaked out doing 50mph on a roller coaster which involves tight curves, imagine how they feel when serious speed is involved! Its all down to the forces a passenger feels, if a passenger feels a lot of strong forces then he or she is going to be nervous, and may avoid traveling on the train, or just choose a slow train. COUNTRIES WHO DEVELOPED THE TILTING TECHNOLOGY BritainThe UK was interested in developing the advanced passenger train for quite a while France The development of the tilting train in France began in 1956 when eng. Mauzin built and experimented a single car unit that used inertial (non-assisted) tilting. This experiment were suspended because a natural tilting proved too difficult to accomplish. France preferred to built a vast network of high speed lines and the development of TGV started in the early seventies with a two-car modified turbo train. Today GEC-Alsthom has decided to start the development of a tilting TGV that has been delivered few weeks ago for testing and trials.Spain With the ETR-401 Fiat delivered in 1976 a wide-gauge version to Spain that was designated Tren Basculante (RENFE Type 443). However like its Italian sibling it remained a single vehicle. Later Spain developed a tilting version of its own Talgo train (talgo pendular) that so far has proved itself the only successful example of natural tilting and has met with a huge success. USA/Canada The first experiments were carried over in the thirties with non-powered cars (called pendulum), but the first successful tilting train in the USA was the Sikorsky Turbo Train which incorporated an inertial tilting mechanism.Later, in 1973 Amtrak tested an active tilting train called LRC (Light – Rapid – Comfortable) made of ten cars, that unfortunately had no success. Today Amtrak is trying again with the American Flyer built by Bombardier using some TGV-derived technologies. Sweden ABB developed in the early seventies an active tilting mechanism t hat was alternative to the Italian and British ones. This was tested in the X15 vehicle and implemented in the X2000 series train that so far has had a good success. One curious feature of this trains is that the tilting mechanism is applied only to the passengers cars and not to the driving motor units.Switzerland As a part of the IC-2000 project the Swiss railways are developing a tilting train that has the provisional designation ICN-2000 and will be built by SIG. Germany Germany has adopted tilting technology on its 610 and 611 class series EMU and will built the ICT for long-range intercity services ADVANTAGES 1. Fuel consumed by the trains can be minimized. 2. Speed of the trains can be maintained constant and hence time to reach the destination is minimized 3. Their will be Comfort ness for the passengers. DISADVANTAGES 1. Very costly to manufacture these kind of trains. . If the coaches do not tilt then it is dangerous. SUMMARY While the Very high speed trains like the TGV c ould be regarded as the Rolls Royce of trains, tilting trains could be thought of as the cheep and cheerful mini metro. The price differential is fairly similar too, it costs about 20 times more per unit distance to build a dedicated high speed line than it does to upgrade existing lines for tilting trains. This is what makes tilting trains extremely attractive. However there are disadvantages. 140mph or 230km/h is about as fast as trains go when not on dedicated lines.And then they have to be fitted in with slower moving traffic. With rail travel growing all over Europe, the problems of railways reaching saturation point has forced new lines to be build. This is why despite the success of the Italian Pendolini a new high speed line with 300 km/h trains is being built, because existing lines are at saturation. BIBILOGRAPHY Theory of machines KHURMI . R. S Railway Engineering PROFILLDIS . V. A www. goggle search. com TILTING TRAINS [pic] TILTING OF TRAINS WHILE TAKING RIGHT TURN IN T HE TRACKS [pic] TILTING OF TRAINS WHILE TAKING RIGHT TURN IN THE TRACKS

Backgrounder to Deputy Minister

This pilot project was launched on January 7, 2007. Taking into consideration the relentless criticism in important newspapers, magazines and TV channels, about the alarming increase in the drug demand level among both male and female high school students, a Committee was appointed by the Social Justice and Empowerment Ministry to initiate the modalities of Awareness Campaign with the active co-operation of School Managements.The Ministry, instead of taking direct responsibility for implementation of the project, created a special fund with an initial contribution $ 50,000 for contingent grants and selected two NGOs for implementation of the project. The issue presented before the NGOs was simple and direct. â€Å"Can the Awareness Campaigns deliver tangible results in the area of drug demand reduction? † The problem and the scenario: This is the first of its kind familiarization program conducted for the benefit of the representatives of the NGOs.The objective is to train the traianers from the point of view of this Awareness Campaign. The NGOs selected have the experience and expertise of working among the drug addicts, for over a decade. Five representatives from each NGO attended the session, one of them was the Chief Coordinator, and the rest were field level personnel. The guideline /handouts specially drafted by the Implementation Committee constituted by the Ministry for the training course were given to them. There are twenty four High schools in the District â€Å"A† selected for the program.Each NGO was allotted 12 Schools. The above initiative was in response to the directions of the Cabinet to the Ministry of Social Justice and Empowerment. This time-bound program is directed to be completed within a period of three months. The Deputy Minister of the Department was asked to personally monitor the program and present the report within the time stipulated. The strong reason for associating NGOs is: By experience it is observed that drug demand reduction is mainly a socio-spiritual initiative.The typical government approach bogged down to procedures, did not deliver the results in the past. a) Making the Deputy Minister take direct responsibility of this important social issue: According to the inputs before the Cabinet, the situation relating to the drug scenario in the schools has been alarming. Very inconvenient questions were raised in the Parliament about Government’s lethargy in not properly addressing the issue. The need for a sense of destination and direction to the combustible school-going generation in this age group was felt by the members of the Parliament.On a careful study of the scenario, the following reasons were cited by a Committee specially constituted by the Ministry to send the report to the Cabinet. What are the reasons for such moral collapse of the youngsters at the formative stage of their life? Five major issues were cited: a) Economic prosperity. The children get more than requir ed pocket money. The reasons and sources for children having more cash than is necessary for their normal needs however could not be ascertained. The students were not willing to share this information with the counseling team.b) The friendship-net of the drug-addicts is fast expanding. The teachers are afraid to take strong action against the students lest they will be charged under the various provisions of the Child Abuse Act. c) The same was the issue with the parents. In a few cases the children had initiated legal action against the parents under the above Act. d) With the divorce rate touching 55%, every second family was a broken family. Denied of love in the house and in the absence of a happy social interaction with the immediate family members, children looked out for other sources of enjoyment.e) The peer-pressure of the senior students was too much to resist. In some cases, the senior students did not hesitate to take recourse to coercive methods to drag the unwilling f riends to the drug joints. Deputy Minister’s accountability: â€Å"Deputy ministers are accountable to their Ministers, and to the Prime Minister through the Clerk of the Privy Council. (4) Deputy ministers are also accountable to the Public Service Commission and the Treasury Board for authorities directly delegated or assigned to them relating to financial and human resource management.(5) One of the Deputy Minister’s fundamental responsibilities is to support the Minister’s accountability to Parliament. Deputy Ministers and other departmental officials appear before parliamentary committees on behalf of their minister by answering questions and providing information, but they explain rather than defend or debate policies. Public servants do not have a public voice, or identity, distinct from their minister; they are anonymous. †(The Accountability†¦. ) The Deputy Minister has the dual responsibility in implementing the program.Even though the init ial grant of $50,000 was made available by the Ministry of Social Justice and Empowerment (the Deputy Minister’s own Ministry), further grants totaling to $ 5,000,000, for the broad implementation of the project all over the State were due shortly from the Finance Ministry, to be disbursed in two monthly installments. â€Å"As noted earlier, Deputy Ministers are assigned specific powers directly or through the Treasury Board under certain provisions of key acts of public administration without reference to their Minister.Specifically, the Financial Administration Act confers directly on Deputy Minister’s responsibility for the prudent management of resources allocated to their department, in compliance with certain Treasury Board policies, regulations, standards, and periodic audits. Responsibility relating to personnel management, including appointment, employer-employee relations, and the organization of the department, are assigned to deputy ministers directly by a number of acts†¦Ã¢â‚¬  (Review of†¦)Therefore, the Deputy Ministers have multiple accountabilities. To their Minister and the various Statutory Commissions constituted by the Government for controlling. But the Minister of the Department is the immediate and legal boss and he is answerable to the Minister, as for the general Management of the Department. The Deputy Minister needs to control and ensure that appropriate systems, management processes and instruments are maintained properly so that the performance monitoring goes on smoothly.The role of the Internal audit system for inspection and evaluation is very important and the surprise element of deployment of the staff designated for the purpose helps for a neat and clean administration. Irregularities and malpractices in the disbursement of financial allocations/grants need to be reported to the Deputy Minister well in time, for timely action. In the present case†¦. The Awareness Campaign conducted by the two N GOs had salutary effect on the students. Stunning facts came to the light that about 45-50% of the girl students, smoked, took alcohol and drugs. The percentage among the boys was about 70%.Mostly it was peer pressure, and as found during the Campaign, secret drug joints functioned in the vicinity of the educational institutions. Some peddlers visited the students at conspicuous places nearby on fixed days of the week. But the contents of the Awareness Campaign, lectures on the harmful effects of drugs, practical demonstration through slides/video/audio etc. had desired effects on majority of the students. Many openly declared that they were quite ignorant about the drastically damaging effects on health, by intoxication. Some students volunteered to attend counseling classes at the offices of the NGOs on regular basis.Such awareness campaigns have created highly positive effects on the impressionist minds of the youth. The above observations will place the Deputy Minister in a stro ng position to recommend to the Finance Minister for release of the intended grant of $ 5,000,000 for conduction of such Awareness Campaigns as a matter of policy, all over the State. For one round of Awareness Campaign consisting of two lectures on two altenative dates, expenses devolved are $ 1000, per day. An ad-hoc department is created in the Ministry by transferring suitable senior personnel on deputation basis and junior staff by fresh appointment.A skeleton Section has been formed to look after the immediate administrative needs. The priority of this Ministry is to build up diligent cadres who have a high sense of responsibility in relation to ethical morality. To involve in Awareness Campaigns related to drug demand reduction, one needs to develop missionary zeal. One needs to have a vision, not the legal government-employee relationship only. By saving one individual from deep drug addiction, an entire generation is rehabilitated. Conclusion: Can the Awareness Campaigns de liver tangible results in the area of drug demand reduction?The answer is in the positive. In view of the social conditions obtaining today, when the children are not assured the love they desire and deserve from the parents, due to reasons mentioned above, the School seems to be the place where they can get life-building exercises and lessons. Some of the reformed students have volunteered to actively participate and don the role of reformers, for the benefit of children in other schools. This is a highly positive development. It is now proved beyond doubt that holistic approach to cure drug addicts gives permanent results and the chances of relapse are minimal.So, the intended policy of the Government to associate NGOs that have the socio-spiritual approach, seems to be sound and adoption of this system is throughy recommended. ————— References Cited: Article: The Accountability of Deputy Ministers before Parliament (PRB-05-48E). www. parl. gc. c a/information/library/PRBpubs/prb0548-e. htm – 29k Article: Review of the Responsibilities and Accountabilities of Ministers †¦ This is the general accountability of deputy ministers to the Treasury Board†¦ www. tbs-sct. gc. ca/report/rev-exa/ar-er04_e. asp – 21k

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The Experience After Death in Buddhism, Hinduism, and Zoroastrianism - Essay Example The three religions are mostly practiced in the South Asian region of the world. With the advancement in science, people have started questioning the different beliefs in their respective religions. A detailed study of the three religions gives us convincing evidence of the existence of the after life, the nature of the soul and the journey towards its final destination and the concept of heaven and hell. In this paper I will study the concept of life after death in the light of the teachings of Hinduism, Buddhism and Zoroastrianism. Like most religions of the world Hinduism, Buddhism and Zoroastrianism also believe in the experience of the life after death. Each of the three religions gives detailed accounts of the journey of the soul from the time of its departure from the physical body towards the final destination. According to Glin-pa and Evans Wentz (2000), in Buddhism the after death journey is covered by the soul in 49 days (pg. 104). During this period the soul passes through a number of stages which have been mentioned by the authors in â€Å"The Tibetan Book of the Dead (2000)†. After which the soul enters into another body and is ready for rebirth. Death is not a sad experience for the Buddhists. It is just the beginning of the process of rebirth. In Hinduism, like in Buddhism the experience of death is not a sad one. It is rather referred to as the changing of the clothes (pg. 15) or moving from one house to another (pg. 15) by Sri Swami Sivnanda (1997) in his book entitled â€Å"What becomes of the Soul after death†. The after life journey of a Hindu soul is completed in one year during which the soul passes through many stages. The greater the sins committed by the soul the harder become the journey (pg. 16). Peter Clark (1999, pg. 63) discusses the concept of life after death in his book entitled â€Å"An Introduction to an Ancient Faith†. According to him the Zoroastrian faith also supports

Representation of ethics in the stage dramas of Pakistan Essay Example for Free

Representation of ethics in the stage dramas of Pakistan Essay It is a sad reality that : vulgarity and obscenity has corrupted our theaters as commercialization has become their main motive , this paper discusses these issues. Stage dramas are related to our society and culture, they were the part of our society and will remain, however modern changes have taken place . Dances and vulgar comments have no positive impact on our society and they fail to depict our culture. Background Indrasabha In 1855, the enactment of the play Indrasabha (the Heavenly Court of Indra) written by Agha Hasan Amanat Ali in the courtyard of the last Nawab of Oudh, Wajid Ali Shah, marked the beginning of Urdu theatre. The drama dealt with the love story between a fairy and a prince. The Nawab, who was a Kathak dancer and had written theses on stage techniques, composed some of the songs and choreographed the dances for the play. It was a huge success. Its characters (Sabaz Pari (Green Fairy), Kala Deo (Black Devil) and Lal Deo (Red Devil)) live on as a part of the vocabulary of the South Asia. Post Independence theater Pakistani literature The distinct voice of Pakistani literature came soon after the Partition of India in 1947. Since there were many cultural similarities, Urdu and English Literature was inherited by this new state. Over due course, a literature which was somewhat uniquely Pakistani has emerged in every province. Initially the plays were all about the independence and the atrocities committed on the Muslims by the Hindus and Sikhs but this gradually began to change and the current trend is specifically Pakistani venturing into many different genres. Saadat Hasan Manto Main article: Saadat Hasan Manto Manto is arguably the most influential Urdu writer of the 20th century. He was one of the most controversial as well. His work is comparable with D. H. Lawrence. This comparison is made because like Lawrence he also wrote about the topics considered social taboos of his Society. He addressed topics ranging from the socio-economic injustice prevailing in pre- and post-colonial South Asia; he stirred up quite a fury when he wrote about controversial topics of love, sex, incest, prostitution and the typical hypocrisy of a traditional South Asian male. In dealing with these topics, he wasnt careful to conceal any of the facts and clearly showed the true state of affairs. His short stories were often intricately structured, with vivid satire and a good sense of humor. Manto was a well known film writer of the Indian cinema and was making good money. He however, chose to abandon his lucrative career and migrated to Pakistan. In the seven years that Manto lived in Lahore he continuously struggled for survival. However, he proved to be a productive individual who gave some of his best writings to the literary world regardless of his domestic situation. It was in Lahore that he wrote many of his best known works. Manto was primarily known for his short stories of the South Asia, great literature out of the events relating to the Partition of India. The literature, which came out of the period that followed, is considered to have been progressive in its tone and spirit. According to several critics it had not only evolved its own identity, but also had played a significant role in documenting the hardships and hopes of Pakistan in the latter part of the 20th century. Manto also wrote plays and many of his stories have been successfully adapted for the stage. Some of his characters have become legends in the minds of theatregoers. Farrukh Nigar Aziz The daughter of Abdul Aziz Falakpaima, Farrukh Nigar Aziz was a known literary figure even before the partition. She and her sisters were educated along liberal styles of education. These women received opportunities that were somewhat of a rarity in their day. Formal education for Muslim women and having a career in the arts or performing arts was considered to be unrespectable. Types of theatre The general complaint in conservative circles is that commercial theatre is lowbrow and thrives on obscene dialogue and dances. The fact is that at least three departments are tasked with monitoring the activities of commercial theatre. From the Punjab Arts Council, which is responsible for vetting the scripts to District Coordination Officers, who are authorized to monitor the screening of plays, to the Home Department that actually takes action against producers, directors, artistes and theatre owners, the dice is loaded against entertainment at every step. Local theatre Commercial theatre is surviving this accusation and, in some cases, even thriving this shows that people want entertainment and are prepared to watch plays despite the hazards of doing so. Just like any demand and supply situation, since there is a demand there will be a supply. The arrival of commercial theatre in Lahore was in the early 1980s. The joint efforts of Naheed Khanum, Amanullah, Mastana and Baboo Baral ushered in the art the lively dialogues and innovative style was like a breath of fresh air for the citizens. The initial venue for the staging of these plays was Alhamra but a replacement venue had to be sought once Alhamra closed down for renovations in 1981-1982. Each and every script has to be cleared by the Punjab Arts Council (PAC). Lahore has five private (Tamaseel, Mehfil, Naz, Crown and Alfalah) and a government theatre (Alhamra). The moral brigades claims of vulgarity and calls for closure of commercial theatre have become common in Gujranwala, Faislabad, Multan and Sahiwal. Most of the complaints originate from a small community of zealots while the majority of people enjoy the performances. In Lahore, most of the audience come from other cities. The theatres are packed on Thursdays, Fridays and Saturdays. A stage play usually runs for 16 days and earns around two million rupees in that time. Tickets cost from Rs. 200 to Rs. 1,000. Training institutions Punjab Lok Rahs Main article: Punjab Lok Rahs  Punjab Lok Rahs started working as an independent alternative theater group in 1986. The group has seen a number of upheavals both internal and external during its history. On average, the group has held a performance every fortnight since its creation. It started as a group of young men and women, primarily students, that was concerned with the military oppression of arts and cultural activities in Pakistan. The group cherished a society that has gender equity and democratic values, respects all humans and offers equal economic opportunities to all. Rahs believes in organized and conscious efforts to realize this dream. Theater is its medium. Rahs experience in the art of theater is very deep as well. From staging classical epics to quick response street skits and from working out foreign adaptations to improvising ones with community and from performing at overseas festivals to villages and urban slums, Rahs has touched upon a host of issues. Rahs canvas is very wide and diverse as it has dealt with subjects like child marriage and womens right to marry of their free will and staged plays against arms race and military dictatorship. Besides experimentation and experience, Rahs has learned theater from its gurus like Badal Sarkar. Its members have received training from many institutions in other countries. The group has imparted theater training to a number of civil society organizations as well. It has supported scores of other organizations by performing for the communities with which they work. Rahs draws inspiration from Punjabs indigenous theater tradition. Its name ‘Rahs is the Punjabi word for local form of theater and its logo shows the basic props of this theater. The group aims to marry the tradition with modern techniques and concepts and make it an effective tool in the hands of organizations working for social change. Rahs performs plays only in the mother language of its audience the people of Punjab. The group believes that the mother language lies at the heart of the issue of cultural identity. The group not only performs but also trains other dramatic societies and community organizations to do theater as an art and use it as an effective tool of communication. The Rafi Peer Theater workshop is named after Rafi Peer one of the pioneers and founders of Modern Urdu and Punjabi Drama in the Ind-Pak Subcontinent. The Theater workshop was founded in 1974 by Salmaan Peerzada and his brothers Usmaan Imraan Sadaan Faizaan and his sisters Kausar and Tasneem Peerzada. The Theater Workshops aim was to bring social and cultural change through the Arts. The theater workshops first Production was Culture Culture. An avant grade theater experiment for its time. It was an effort at creating original contemporary drama in Pakistan. The Play was Performed both in Lahore and Karachi. It was Created and Directd by Salmaan Peerzada, Starring Kursheed Shahid, Perin Cooper,Salman Shahid, Rubina Saigol, Imraan Peerzada and Samina Peerzada. Over past three decades the Rafi Peer theater workshop has produced diverse and amazing body of work in Drama, Puppetry, Dance, Music, besides this it hosts four major Art Festivals. Rafi Peer theater workshop has done enormous service for performing Arts in Pakistan, by supporting Artists and the Arts.

Reusability of Code Essay Example for Free

Reusability of Code Essay Designing a code can often take a lot of time, depending on the complexity of the coding. This is why code reusability has become a standard when it comes to computer programming. But to understand why you would reuse code, you need to understand what goes into creating code. This essay will compare and contrast procedural programming modules and objects. Also, it discuss the security terms in hiding code, passing of data versus data encapsulation, code reuse in more than one program, and how object-oriented methods are similar to procedural modules. According to Gaddis (2010) there are two methods of programming that are primarily used: Object-oriented and Procedural. Procedural programming is more focused on creating procedures; object-oriented programming is focused on creating objects. When dealing with procedures, the data items are separate from the procedures. Gaddis (2010) says this can cause problems, but at the same time it will help the program become larger and more complex. But where procedural programming separates code and data, object-oriented programming handles it through encapsulation and data hiding. Encapsulation takes an object and combines data and code into it. Data hiding makes it possible to hide code in the inside of an object from the code outside of the object. An object normally hides its data, but leaves the methods available for access. Gaddis (2010) states, â€Å"When an object’s internal data is hidden from outside code and access to that data is restricted to the object’s methods, the data is protected from accidental corruption.† There is also no reason to worry about formatting of the code inside the object, just the methods of the object. If you want to reuse codes, the best way to do it is to create modules. They let you duplicate code in a program so that you can execute whenever you  need the service. The Microsoft website (What Is Reusable Code?, 2013) says that code reusability can be used if the code doesn’t have to modified, and can perform a specific service regardless of what the application uses it. It just can be too complex of a code. Just as we use standards in everyday life, there are standard code that is used with computer programs. Venit and Drake say (2011) that inheritance goes along with code reusability. Inheritance takes the methods and attributes from old classes and uses them in new ones. In conclusion, there are different aspects between object-oriented programming and procedural programming. These two methods have different ways of functioning within a program. And as long as a code isn’t to complex, code reuse is very possible. References Gaddis, T. (2010). Starting Out with Programming Logic Design (Second Edition ed.). Addison-Wesley. Microsoft. (2013). What Is Reusable Code? Retrieved from msdn.microsoft.com: http://msdn.microsoft.com/en-us/library/office/aa189112(v=office.10).aspx Venit, S., Drake, E. (2011). Prelude Programming Concepts and Design (Fifth Edition ed.). Addison-Wesley.