...Technology (MIT) in 1993, ThreeDimensional Printing technology (3DP™) forms the basis of Z Corporation’s prototyping process. 3DP technology creates 3D physical prototypes by solidifying layers of deposited powder using a liquid binder. By definition 3DP is an extremely versatile and rapid process accommodating geometry of varying complexity in hundreds of different applications, and supporting many types of materials. Z Corp. pioneered the commercial use of 3DP technology, developing 3D printers that leading manufacturers use to produce early concept models and product prototypes. Utilizing 3DP technology, Z Corp. has developed 3D printers that operate at unprecedented speeds, extremely low costs, and within a broad range of applications. This paper describes the core technology and its related applications. How does Z Corp.’s technology work? Source Data Z Corp.’s 3D printing technology leverages 3D source data, which often takes the form of computer-aided design (CAD) models. Mechanical CAD software packages, the first applications to create 3D data, have quickly become the standard for nearly all product development processes. Other industries such as architectural design have also embraced 3D technologies because of the overwhelming advantages they provide, including improved visualization, greater automation, and more cost-effective reuse of 3D data for a variety of critically important applications. Due to the widespread adoption of 3D-based design technologies, most industries...
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...Front. Mech. Eng. 2013, 8(3): 215–243 DOI 10.1007/s11465-013-0248-8 REVIEW ARTICLE Nannan GUO, Ming C. LEU Additive manufacturing: technology, applications and research needs © Higher Education Press and Springer-Verlag Berlin Heidelberg 2013 Abstract Additive manufacturing (AM) technology has been researched and developed for more than 20 years. Rather than removing materials, AM processes make three-dimensional parts directly from CAD models by adding materials layer by layer, offering the beneficial ability to build parts with geometric and material complexities that could not be produced by subtractive manufacturing processes. Through intensive research over the past two decades, significant progress has been made in the development and commercialization of new and innovative AM processes, as well as numerous practical applications in aerospace, automotive, biomedical, energy and other fields. This paper reviews the main processes, materials and applications of the current AM technology and presents future research needs for this technology. Keywords additive manufacturing (AM), AM processes, AM materials, AM applications 1 Introduction The ASTM F42 Technical Committee defines additive manufacturing (AM) as the “process of joining materials to make objects from three-dimensional (3D) model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies” [1]. It is also known as additive fabrication, additive processes, direct digital...
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...Good Things to Know about Worm Castings This is an overview of benefits known about worm castings. The overview is generated from information disseminated by such major Universities as Ohio State, Cornell University and UC Davis. This information also comes from other institutions and companies such as the California Vermiculture, LLC and the Australia SIRO. Their research goal was to establish the value of worm castings. Their test results have shown improved flower size, bloom quantity, quality, and color. Fruit and vegetable tests results have shown yield improvements from 15% to 57% as well as improvements in taste and appearance. The information you need to know and consider is presented below in a list format, which we believe is easier and quicker to reference and grasp. Some of the discoveries made will surprise you. Most people will be amazed by the following information if they have no prior exposure to the absolute beauty and completeness of the worm casting. Basic points to start: Worm Castings are the worm feces. The castings are made up of live biological organisms. The organisms include fungi, actinomycetes , beneficial bacteria, pseudomonads , plant growth regulators, yeasts, molds, trace elements and the famous N-P-K ratings used by fertilizers, to reference the Nitrogen, Phosphorus and K (which is the chemical symbol for Potassium) quantities promoted by the fertilizer industry (more on this below). Worm Castings are harmless to plants (in any dosage)...
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...SEMINAR REPORT ON: 3D PRINTING TECHNOLOGY SUBMITTED BY: NAME: PRANATI DASH ROLL NO: 1021019 UNDER THE GUIDANCE OF: PROF.ASHUTOSH BEHERA PROF.MANOJ MISHRA PROF.JAYANTI DANSANA SCHOOL OF COMPUTER ENGINEERING KIIT UNIVERSITY BHUBANESWAR-24. Seminar Report-2014-15 3d Printing CERTIFICATE This is to certify that the report entitled “3D PRINTING TECHNOLOGY” is submitted by Pranati Dash (1021019) in 8th semester at School of Computer Engineering, KIIT University, and Bhubaneswar during the academic year 2014 as Seminar Report, under my constant guidance and supervision. The matter embodied in this report is original. X Examiner X Prof.Ashutosh Behura Seminar Guide X Examiner Seminar Report-2014-15 3d Printing ACKNOWLEDGEMENT I would like to thank everyone who helped to see this seminar to completion. In particular, I would like to thank my seminar coordinator, Prof. Ashutosh Behura for the moral support and guidance to complete my seminar on time. I express my gratitude to all my friends for their support and help in this seminar. Last, but not the least I wish to express my gratitude to God almighty for his abundant blessings, without which this seminar would not have been successful. Seminar Report-2014-15 3d Printing ABSTRACT The last two decades ended in the midst of revolution caused by a technology that was barely noticeable at the beginning of the decade. In 1980 few would have guessed that personal computer along with...
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...(VT20132141) Metallurgical and Materials Engineering National Institute of Technology, Rourkela Under the Guidance of Mrs Shainu Suresh Sr. Manager, Steel Technology and Casting Flat Product Technology Group, Tata Steel Ltd. Jamshedpur i|Page DECLARATION I hereby declare that the project work entitled “Understand clogging in IF grade and suggest countermeasures to minimize it” is an authentic record of my own work carried out at Tata Steel Ltd., Jamshedpur as requirement of short term industrial/research experience for the award of degree of B.Tech Metallurgy, National Institute of Technology, Rourkela, under the guidance of Mrs Shainu Suresh during 14th May to 9th July, 2013 Place: Jamshedpur Date: 8th July,2013 Abhijeet Dash VT20132141 Certified that the above statement made by the student is correct to the best of my knowledge and belief. Mrs Shainu Suresh Sr.Manager, Steel Technology and Casting Flat Product Technology Group, Tata Steel Ltd. Jamshedpur. ii | P a g e iii | P a g e ACKNOWLEDGEMENT I would like to thank the Management of Tata Steel Ltd. for giving me this wonderful opportunity to work with highly knowledgeable people on a project of great importance. I owe my deepest gratitude to my guide Mrs. Shainu Suresh, Sr.Manager, Steel Making and Casting Technology, FPTG and my industry coordinator Dr. T.K. Roy, Head, Steel Technology, FPTG, whose encouragement, guidance and support from the initial to the final level enabled...
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...parts of the world. While most legends are told and brushed off as simply crazy stories, the legend of Bigfoot has caused much debate and investigation into the truth behind the stories of the giant ape-like animal. Many scientists have studied the supposed evidence of Bigfoot and the stories that have been told about the creature. For years, the research into the existence of Bigfoot has gone on with no conclusive evidence being found to prove the existence or non-existence of such an animal. As the questions remain, the legend of Bigfoot lives on and continues to grow from year to year. The stories and evidence provided in this paper are all from David Jenkins’ personal collection and experiences. David Jenkins was my zoology teacher in tenth grade, my biology teacher in eleventh grade, and finally my marine biology teacher my senior year. Mr. Jenkins has gone to church with my family and I since I can remember. He is a science teacher by trade, but is also a legitimate Bigfoot researcher and is affiliated with the Bigfoot Field Research Organization. When I spoke to Mr. Jenkins in May 2013, that I would be writing a research paper on the subject of Bigfoot, he was more than pleased to help me. BIGFOOT: LEGEND OR FACT? 3 When people hear talk...
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...3 chapter a korte hobe...... chapter- 1: Name, mission, vision, history, product line chapter-2: Business performance, Analysis (profit %) chapter-3: opprtunity, limitation, recommendation and conclusion An Assignment on Walton Introduction : We are the member of Over Viewer Group. Our group has been asked to make a research paper on” Analysis of Marketing Mix ” in Marketing 101 course by Mashruha Zabeen , lecturer of East West University ,department of business administration. We have been selected to make the case study on “Walton HIL (Walton Hi-Tech Industries Ltd.)”. We have selected a specific product of Walton. Our selected product is “Walton Refrigerator and freezer”. We have six members in our “Over Viewer” group. Name and ID of group members: Abu Hossain Anik :2010-3-10-045 Sohan Kowsar :2010-3-10-128 Syad Abrar Ahamad : 2010-3-10-127 Ibrahim Hamid 2010-2-13-085 Mahamudul Mojid Mim 2010-3-13-048 Sanjoy Sarker 2010-3-10-046 Company profile: Walton HIL (Walton Hi-Tech Industries Ltd.) is the pioneer of Refrigerator, Freezer, and Motorcycle manufacturing technology in Bangladesh which is treated as one of the most sophisticated plants in South East Asia. It is also the manufacturer of Energy Saving Lamp and Microwave Oven. R. B. Group, Mother Company of Walton Hi-Tech Industries Ltd. (Walton HIL) is one of the country’s top and expanding business organizations in the arena of electrical, electronic products, which has been operating its business with...
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...Agarose Gel Electrophoresis for the Separation of DNA Fragments Pei Yun Lee, John Costumbrado, Chih-Yuan Hsu, Yong Hoon Kim Department of Molecular, Cell, and Developmental Biology, University of California Los Angeles Video Article Chapters 0:05 Title 1:31 Preparation of the Gel 3:21 Setting up Gel Apparatus and Separating DNA Fragments 4:55 Observing Separated DNA Fragments 5:43 Results: Agarose Gel Electrophoresis of PCR Products 6:23 Conclusion Cite this Article Lee, P. Y., Costumbrado, J., Hsu, C. Y., Kim, Y. H. Agarose Gel Electrophoresis for the Separation of DNA Fragments. J. Vis. Exp. (62), e3923, doi:10.3791/3923 (2012). Abstract Agarose gel electrophoresis is the most effective way of separating DNA fragments of varying sizes ranging from 100 bp to 25 kb1. Agarose is isolated from the seaweed genera Gelidium and Gracilaria, and consists of repeated agarobiose (L- and D-galactose) subunits2. During gelation, agarose polymers associate non-covalently and form a network of bundles whose pore sizes determine a gel's molecular sieving properties. The use of agarose gel electrophoresis revolutionized the separation of DNA. Prior to the adoption of agarose gels, DNA was primarily separated using sucrose density gradient centrifugation, which only provided an approximation of size. To separate DNA using agarose gel electrophoresis, the DNA is loaded into pre-cast wells in the gel and a current applied. The phosphate backbone of the DNA (and RNA) molecule...
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...Riordan Current Business Practices Audit MGT/360 University of Phoenix Riordan Current Business Practices Audit Riordan Manufacturing is a global plastics manufacturer with locations in California, Georgia, Michigan, and China. The vice president of operations decided to develop a sustainability plan. Team A has been assigned the task to conduct a business audit to evaluate the Riordan’s current business practices at each location. The audit provides valuable information to identify the nonsustainable business practices and how each effects the environment. The subject in this paper is how Riordan Manufacturing will identify their nonsustainable practices, federal regulations, mandatory, and voluntary actions necessary to implement a successful sustainability plan. Nonsustainable Business Practices The business practice audits brought to light three nonsustainable practices. The three practices highlighted by the audit include wasted energy from the plants, the use of toxic cleaning solvents, and spilled ink. These three business practices can be very harmful to the environment. Burning fossil fuels for energy creates gases such as sulfur dioxide, nitrogen oxide, and volatile organic compounds. These gases cause air pollution. They can cause several kinds of air pollution, particular matter, smog, and ozone (New Energy Alternative, 2008). Air pollution can travel thousands of miles and can harm areas that burn fossil fuels sparingly. The next nonsustainable...
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...Current Business Practices Audit Kimberly Johnson, Richard Siemienczuk, Karen Graham, and Chad Smestad MGT/360 December 3, 2012 Vicki Bauer Current Business Practices Audit The learning team conducted an audit of Riordan Manufacturing’s current business practices at its processing plants located in California, Georgia, Michigan, and China. The business sustainability worksheets used to complete the evaluation aided the team in locating common areas of non-sustainable practices relating to land, water, and air pollution. The three non-sustainable practices evaluated further are solid waste, and hazardous waste causing land pollution, hazardous waste causing water pollution, and gaseous waste causing air pollution. These areas are the most harmful to the immediate population, which includes the plant workers and the communities. Solid Waste and Hazardous Waste Causing Land Pollution One of the non-sustainable practices is adding to land pollution. Currently, off-spec materials are sent to the landfill (Apollo, 2012). In addition to this, scrap plastic managed as waste goes to the landfill (Apollo). The biggest problem is that plastic is not biodegradable. When plastic and off-spec products are sent to the landfill, breakdown occurs but at minimal rates and these take longer to biodegrade over time. To remain compliant with government regulations, Riordan Manufacturing is required to identify hazardous waste generated each month if it exceeds 2,200 pounds (Apollo...
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...Printing press is a machine that transfers lettering or images with the contact of various forms of inked surfaces onto papers or similar kind of material into different ways. Printing press is used for printing many copies of a text on papers to form a book or similar kinds of reading material. Around 1446 several print masters were on the process creating effective technology of printing with movable metal type. The rapid cultural change in Europe fueled a growing need for the rapid and cheap production of written documents. A number of people had previously attempted to make a metal type movable printing press, but it was not until a method was invented for producing metal type in large quantities that printing with movable type became economically practicable. Johannes Gutenberg, the son of a noble family of Mainz, Germany was the first person to demonstrate the practicability of movable type printing machine. Gutenberg, who was a stonecutter and goldsmith, invented an alloy of lead, tin and antinomy that would melt at low temperature, cast well in the die, and is durable in the press (Kreis, 2011). As long as the metal in which they were cast did not wear down, it was possible to use and reuse the separate pieces of type, simply by arranging them in the desired order. The innovation of type from an alloy was durable and produced high quality printed books and was suitable for printing than the clay, wooden or bronze types which were already invented in East Asia. The mirror...
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...Replicas and Forgeries Chris Rohr Western Governors University Replicas and Forgeries Fakes, forgeries and replicas have been created for centuries. Determining the difference between them has been an issue of growing importance. Hundreds of books have been written on the subject and there are professions and organizations built around determining the true nature of an object. For the purposes of this paper and object may be a work of art, a document or an artifact. A replica is a copy of an original object that is not presented as the original. The replica is not considered the original even if it is made of the same materials and constructed in the same fashion as the original object. A forgery or a fake is a copy of an object that is represented as the original object. The forgery or a fake is not considered the original even if it is made of the same materials and constructed in the same fashion as the original object. According to some experts determining the authenticity and originality of an object is becoming more and difficult “...we have become so immersed in the world of mediated representations that we can no longer tell the difference between authentic and the artificial” (Knight & Long, 2004, p. 2). The differences which separate replicas from forgeries or fakes are deception in representing the object, altering the value of the object and the intent in the creation of the object. The intent to deceive the true representative nature of an object is...
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...ASSESSMENT – A Culture of Inquiry Please work with your department faculty to develop a graduate profile that reflects common goals among all departments and in relationship to our mission statement. This graduate profile should be ready prior to our next Program Chairs meeting on October 7th, when we will discuss and come to agreement about what we believe is our “ultimate” graduate profile. Following program chairs’ agreement, the material will go to the full faculty for discussion and vote. I will also gather input from Student Affairs so that we understand their contribution to the success of our students. Readings about assessment and what it is are attached.* As I mentioned earlier, we will be working our way through this process together, and developing our assessment program in relationship to the goals and values unique (and/or integral) to this institution. Additional readings are on reserve in the library, and an enormous amount of information is available on the web. *Distributed at the Program Chairs meeting on 9.9.2008 MISSION Maine College of Art delivers a demanding and enlivening education in visual art and design within an intimate learning community. We teach each student how to transform aspirations and values into a creative practice that serves as the foundation for a lifelong pursuit of personal and professional goals. VALUES o Maine College of Art’s educational philosophy is built on the premise that focused individual attention and...
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...At this time, unfortunately, a convergence in terminology has not been forthcoming and, hence, a definition of the term Micro-Machining to be implied in the context of this assessment is in order. In principle, one may take two viewpoints:(1) The first viewpoint may define Micro-Machining as the collection of all cutting operations that are performed on micro/meso-scale components and products that fall into the 100 μm to 10,000 μm size range as shown in the figure below. The Micro-Machining regime is characterized by the requirement of producing high accuracy complex geometric features in a wide variety of materials in the above-defined size range. These requirements impose the use of considerably downsized tooling (micro-tools, e.g. endmills in the 50 to 500 micron diameter range), small undeformed chip thicknesses and feedrates (submicron to a few microns) and speed settings (50K to 200K RPM might not be uncommon) that would be considered technologically infeasible at the conventional macro-scale. As a consequence, the principal distinction between Macro and Micro-Machining operations emerges and manifests itself as the dominance of ploughing and rubbing phenomena at the cutting edge over shearing and the necessity to take micro-structural effects into consideration. (2) The second viewpoint approaches the definition of the Micro-Machining regime from the standpoint of the magnitude of the undeformed chip thickness being removed in the cutting process. It is difficult to define...
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...Construction Problems Submitted by WWW.ASSIGNMENTPOINT.COM CHAPTER I INTRODUCTION 1.1 Background of the Study Dhaka is a megacity and one of the major cities of South Asia. Dhaka, along with its metropolitan area, had a population of over 16 million in 2011, making it the largest city in Bangladesh. It is the 9th largest city in the world and also 28th among the most densely populated cities in the world. The population of Dhaka (areas under the jurisdiction of the Dhaka city corporation) stands at approximately 7.0 million. The city, in combination with localities forming the wider metropolitan area, is home to an estimated 16.6 million as of 2011.The population is growing by an estimated 4.2% per year, one of the highest rates amongst Asian cities. Modern Dhaka is the centre of political, cultural and economic life in Bangladesh. Although its urban infrastructure is the most developed in the country, Dhaka suffers from urban problems such as pollution and overpopulation. In recent decades, Dhaka has seen modernization of transport, communications and public works. Dhaka is the commercial heart of Bangladesh. The city has a gro Urban developments have sparked a widespread construction boom; new high-rise buildings and skyscrapers have changed the city landscape. wing middle class populatio. Due to various factors, including absence of an urbanization policy or a human...
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