Pneumatic Auto Gear Changer Project

Pneumatic Auto Gear Changer Project (a) Introduction 1.1 This career episode is based on my design and fabrication project carried out during the penultimate year of my bachelors degree in Mechanical Engineering at Rajiv Gandhi College of Engineering (Anna University Affiliated)-Sriperumbudur, Tamil Nadu state, India. Established in 2001, it is a self-financed and one of the best engineering institutes in Tamil Nadu. The project was completed over a period of 3 months from December 2012 to March, 2013. (b) Background 1.2 The project on Pneumatic Auto Gear Changer was carried out in order to understand and implement theories in gear change application. Its purpose was to analyze the various steps involved and to provide recommendations for a real world use of this technology. I carried out this project as a part of a group of four people. In this project, a push button was used to activate/deactivate a solenoid valve and at the time of gear changing, the switch was triggered and the solenoid valve was activated. This in turn causes the compressed air to go through the pneumatic cylinder. The compressed air pushes the pneumatic cylinder as it passes through a tube and henceforth changes the gear from one speed to the other with the help of a gear box arrangement. 1.3 The automatic gear changing structure is relatively useful in low cost automation in all automobiles. Pneumatic systems work at higher speeds and the manpower requirement is reduced due to this project. The design and the implementation of this project in the real world application was made and a detailed report was submitted. This project work was supervised under Mr. Manoj Kumar, the associate professor in the department of mechanical engineering at Rajiv Gandhi College of Engineering. As it was an open ended project, I had to look up through several online journals, document reviews and also took guidance from the head of the department on various projects and ideas. The project time was quite limited and had to be come up with a proper design plan before the actual start of the project. This proved to be quite a challenging task as this was the first real world project in my career. However, I was completely aware of the fact that, these would be the kind of challenges and problems I would face in real life as a professional engineer. Some of the duties I was involved in during the course of this project were as follows: I carried out an extensive study on various materials relating to the pneumatic systems. Since, there was no specific consensus on the selection of compressors, I had to select the one that best suited the requirements of the project while considering all the technical aspects. I also dealt with the equipment suppliers on behalf of my team to purchase the necessary materials needed for the project. I attended meetings with my supervisor to discuss individual observation and the progress of the project. I presented this project to the department faculties and also completed an extensive project report. (c) Personal Engineering Activity As a first step of the project, I explained my thoughts on doing this project to my supervisor. I carried out my research regarding the project and presented him the importance of the project before carrying out the project.ÂÂ   The present scenario gear changer plays a vital role in automobiles.ÂÂ   Manual transmissions have become uncommon in many cases of cars sold across Australia, North America and some parts of Asia. However, they remain dominant in parts of Europe and other developing countries. Hence, I did an analysis on the present day vehicles equipped with automatic transmission option and those that are not and further highlighted the importance of the project in the present and future of automobiles as well as in certain machineries. After deciding on the project, I carried out numerous literature reviews in order to come up with an appropriate design plan and to acquire the necessary equipment needed for the project. However, the articles and writings published on the topic was quite limited and were available for only specific cases.ÂÂ   As my project was regarding the project pneumatic gear changer, I did my extensive research on the pneumatic side of the project. Furthermore, I reviewed the advantages of pneumatic system and discussed with my supervisor for the usability in the project. Pneumatic system and was best considered due to its following reasons: The pneumatic system power output could be easily controlled Over loading does not affect the pneumatic systems The pneumatic system could be used at varying working temperatures Transportation of air through pipelines over long distances can be easily done with pneumatics in place. Pneumatics enables high working speeds It is a system which requires minimal upkeep. In this project, I used a reciprocating compressor as the key component for the supply of compressed air. I selected the appropriate equipment for the project after evaluating the suitability of information acquired from several sources. A compressor is an instrument that sucks in air and gas at an optimum pressure and deliverers the air back at a higher pressure as the output. It was very important for my project to select the appropriate compressor as pneumatic systems operate primarily on the supply of both compressed air and pressure into the system. Moreover, I had to make sure, clean conditions were maintained during the phase of the project as warm and moist air could result in precipitation of condense from the compressed air. The following is the schematic diagram of pneumatic auto gear changer used in this project. Figure 1: Schematic diagram of pneumatic auto gear changer I also considered an important element for this project which was the push button. The push button switch was fixed near the driving seat of the vehicle. Besides this, I had set up an air tank with fully filled compressed air in it. Prior to gear changing, the solenoid valve was activated by triggering the switch. The compressed air streamed from the air tank to the pneumatic cylinder as the solenoid valve was open. Likewise, at the time of compressed air inlet into the cylinder, the pneumatic cylinder moved forward and the gear box liver moved along automatically from one position to the next. The gear box liver was further activated which allowed the vehicle running at different speeds. I have highlighted the advantages of this type to my supervisor and was duly approved and appreciated by him. They are as follows: It required simple maintenance cares A safe system for the automobile. Easy to Handle. Low cost automation project Repairing was easy. Easy replacement. However, some of the disadvantages of this type were as follows: Initial cost was high. The system was a complicated one. During the course of this project, I used a control valve to control the flow direction within the system. I also used a 3/2 single acting solenoid valve, having one inlet, outlet and an exhaust port. The air entered the pneumatic single acting solenoid valve once the push button was activated. Moreover, I introduced a pneumatic shifter to the whole design as it works through compressed air power. So once the gear changing signals were received, the pneumatic shifter opens or closes the magnetic valve assembly. The compressed air flows into the system once these valves are open, or thrusts it out thereby creating the effect of shifting gear mechanism. More compressed air into the system allowed the gear to be shifted up and the gear shifted down as the air was let. Furthermore, I used an on-board tank to get this compressed air to the cylinder even though I knew re-routing the engine exhaust could be a possibility and be economically viable however, it would result in lower performan ce as most of the oxygen present in the exhaust gas would already be burnt. Figure 2: Schematic of a 3/2 single acting solenoid valve After the analysis on various aspects of this project, I discussed my project outcomes and my results.ÂÂ   Putting all the information to use, I wrote the final report titled Pneumatic Auto Gear Changer and presented this to my department professors and to the head of the department. (d) Summary This project presented me with the opportunity to understand the applications of theoretical knowledge that I had acquired in class rooms to implement in a real world project.ÂÂ   Discussions during the project with the supervisor provided great insight to challenges presented throughout the project.ÂÂ   The challenges uncovered were resolved by use of appropriate technical skills. This project also helped me understand the working and execution of any engineering project and served as a stepping stone to the real world. Overall, I am very happy that I could contribute myself effectively to this project at its various stages and also helped to secure the highest possible grade for this project.

Atheism as an Evolution of Thought and its Place Among the Religious Mu

Atheism is defined by the Merriam-Webster dictionary as (a) a disbelief in the existence of a deity or (b) a doctrine that there is no deity and by The Oxford Dictionary as the disbelief or lack of belief in the existence of God or gods. The Supreme Court proceedings of Schempp vs. Curlett defined atheism in eloquent humanist terms: An atheist loves his fellow man instead of a god. An atheist believes that heaven is something for which we should work now – here on earth for all men together to enjoy. An atheist believes that he can get no help through prayer but that he must find in himself the inner conviction and strength to meet life, to grapple with it, to subdue it, and enjoy it. An atheist believes that only in a knowledge of himself and a knowledge of his fellow man can he find the understanding that will help to a life of fulfillment. He seeks to know himself and his fellow man rather than to know a god... He believes that we are our brother’s keepers and are keeper of our own lives; that we are responsible persons and that the job is here and the time is now. For the purposes of this discourse, the terms atheist and atheism will encompass this humanist philosophical view point as well as modes of thought based upon scientific principals and tangible realities of existence; thus avoiding defining atheism only in relation to theistic belief systems. It is important to acknowledge that atheism, and indeed non-theism as well, is not simply a reaction to theistic beliefs or an angry rebellion against the theocratic majority. Rather, it is a celebration of life, a complete acceptance of mortality, and a joyfulness in truth. â€Å"And what is more pleasing than practical wisdom when you consider the reliability and efficiency ... ...iedrich. Twilight of the Idols and The Anti-Christ. Trans. R J Hollingdale. 1889. Introduction Micheal Tanner, 1990. Translator’s Note R J Hollingdale, 1968. London: Penguin Group, 2003. Print. â€Å"Our Founder†. Carnegie Corporation of New York. 2009 Pellissier, Hank. â€Å"Atheist are the Most Generous – Even Without Heaven Reward!†. The Richard Dawkins Foundation. 25 November 2011. Web. 3 April 2012. School District of Abington Tp., Pa. Vs. Schempp. No. 374 US 203. Supreme Court of the US. 17 June 1963. Westlaw. Web. 16 April 2012. â€Å"Sean Faircloth, Former Executive Director†. Staff. Secular Coalition For America, n.d. Web. 3 April 2012.

Cabeza de Vaca

The Narrative of Cabeza de Vaca: Attitude Towards the Native Indians In The Narrative of Cabeza de Vaca, we follow the journey of Cabeza de Vaca to one of the earliest conquests to the New World. De Vaca's perspective was not like that of conventional conquerors, but he was rather an anthropologist who accepted other cultures and traditions. De Vaca was an advocate for better treatment of Indians, which lead to him being convicted and sent to Africa.This action alone speaks volumes about the heightened prejudice that fueled in the minds of the Europeans against the Native Indians. In The Narrative of Cabeza de Vaca, we witness the superior and greedy attitude of the European conquistadors, which later evolves to a civil and sympathetic view. During the 16th Century, European attitude towards Indians was dehumanizing as they felt that the Native Indians were inferior to them because they didn't have European characteristics of blue eyes and blonde hair .The European conquistadors were looking for new land in hopes to live, seek gold and gather wealth. Europeans enslaved the Native Indians and tried to force them off the land, thus the Indians had to fight back. Religious missionaries tried to convert the Indians to Christianity, they believed that this was the right thing to do because the Indians were superstitious and savage. Due to this perception of Europeans, Cabeza de Vaca suffered greatly because of his sympathy for Native Indians. Like most European explorers, Cabeza de Vaca was inclined towards their conquest.Cabeza de Vaca expressed sympathy and somewhat superiority towards the Indians, while welcoming their hospitable nature throughout the expedition in order to justify his entitlement to their land. As him and his Spanish conquistadors made their westward journey, they encountered many obstacles, such as natural disasters and the initial captivity by the Native Indians. During his almost decade long odyssey, Cabeza de Vaca went through many transform ations from being a conquistador to a slave, then a trader, and then a spiritual healer who was regarded almost as God by the Native Indians.This shows how his perception and understanding changed over time, as he bonded more with the Native Indians. Although, initially, he was at the receiving end of brutality by the hands of the Native Indians, later he developed an amiable relationship with them, which resulted in him becoming an advocate for the better treatment of the Native Indians later on. Due to this, he faced great challenges and punishment, and was sent to Africa. Also, Cabeza de Vaca learned many valuable survival skills from the Native Indians during his journey there.The Narrative of Cabeza de Vaca takes us through a voyage of transforming attitudes from the initial enslavement of the conquistadors by the Native Indians, to the creation of a pleasant relationship with them later. During this expedition, we witness the changing view of Cabeza de Vaca, from a egocentric European conqueror to an advocate for the Native Indians. The penalization of Cabeza de Vaca for speaking up for the better treatment of Native Indians demonstrates the biased and repugnant attitude of the Europeans during the 16th Century.

E Commerce Buying And Selling Of Products - 1148 Words

The buying and selling of products and services by businesses and consumers through an electronic medium, without using any paper documents. E-commerce is widely considered the buying and selling of products over the internet, but any transaction that is completed solely through electronic measures can be considered e-commerce. E-commerce is subdivided into three categories: business to business or B2B (Cisco), business to consumer or B2C (Amazon), and consumer to consumer or C2C (eBay). also called electronic commerce. The e-commerce business was booming for us as there was an increase in the online demand for our business niche. Rather than open a brick-and-mortar shop to sell their products, they decided to use a website for their listings, becoming participants in the lucrative trade of e-commerce.E-Commerce refers to the purchase and sale of goods and/or services via electronic channels such as the Internet. E-Commerce was first introduced in the 1960s via an electronic data interchange (EDI) on value-added networks (VANS). The medium grew with the increased availability of Internet access and the advent of popular online sellers in the 1990s and early 2000s. Amazon began operating as a book-shipping business in Jeff Bezos garage in 1995. EBay, which enables consumers to sell to each other online, introduced online auctions in 1995 and exploded with the 1997 Beanie Babies frenzy.Like any digital technology or consumer-based purchasing market, e-commerce has evolvedShow MoreRelatedcustomer behaviour1489 Words   |  6 PagesAAP E-COM P 1st Introduction to E-Commerce What is Electronic Commerce? Commerce - The exchange of commodities, buying and selling, of products and services requiring transportation, from location to location is known as commerce. 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Numerous block – and – mortar retailers that were working out of physical structures lost business to online organizations, for example, Amazon, and EBay. Thus, e-commerce has developed throughout the years; organizations from Walmart to little one individualRead MoreImportance of E-commerce in Modern Business1176 Words   |  5 PagesTable of Contents Definition and types of E-commerce 3 E-commerce payment systems 3-4 Importance of E-commerce in modern business 3 Conclusion 7 Recommendation 7 References 8 E-Commerce refers to the buying and selling of products and services over electronic systems like the internet and other computer networks. This system depends on technologies like electronic funds transfer, supply chain management, internet marketing, online transactionsRead MoreDesigning An E Commerce Solution Evaluation Essay1624 Words   |  7 PagesIntroduction†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Types of E-commerce†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. E-commerce in use by organisations†¦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‚¬ ¦... Financial implications†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. Designing an e-commerce solution†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Evaluation†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦. References†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ Introduction. Many businesses have shown that after implementing an e-commerce system into their companies, sales have increasedRead MoreDespite Selling Hundreds Of Products On Amazon Or Any Other1304 Words   |  6 PagesDespite selling hundreds of products on Amazon or any other e-commerce platform, I still have a new question during every transaction. You can never have it all figured out. There is endless competition, a variety of customers with high expectations and multiple procedures to follow. With infinite factors dictating your listing, how do you come up with a unique e-commerce niche, deliver products on time and generate profit? Here are 8 strategies that personally helped me grow my e-commerce business:Read MorePorters Five Forces Framework1547 Words   |  7 PagesAlibaba is characterized by medium barriers to entry. Nowadays, creating up a small or niche e-commerce business is relatively easy everywhere. Even person only have very limited information technology skills can also create their own website, such as blogger can create a website using â€Å"Wordpress† or â€Å"Weebly†. Therefore, it is really not difficult for new entrants to enter the market for selling their own products (Sethi 2007, p. 115-116). The most difficult part for new entrants is to gain brand recognition