...MECHANICAL ENGINEERING DETERMINATION OF THERMAL CONDUCTIVITY OF WASTE MATERIAL (PLASTICS) MECHANICAL ENGINEERING LABORATORY 2 ME 11L SUBMITTED BY: Alega, Ulysses Jr. H. Bicaldo, Mark Zedrick L. Engaño, Moises A. Sabida, Ricalyn B. SUBMITTED TO: Engr. Manuel E. Europeo March 10, 2014 INTRODUCTION Heat conduction (or thermal conduction) is the transfer of internal energy by microscopic diffusion and collisions of particles or quasi-particles within a body due to a temperature gradient. The microscopically diffusing and colliding objects include molecules, electrons, atoms, and phonons. They transfer disorganized microscopic kinetic and potential energy, which are jointly known as internal energy. Conduction can only take place within an object or material, or between two objects that are in direct or indirect contact with each other. Conduction takes place in all forms of ponderable, such as solids, liquids, gases and plasmas. Whether by conduction or by thermal radiation, heat spontaneously flows from a hotter to a colder body. In the absence of external drivers, temperature differences decay over time, and the bodies approach thermal equilibrium. In conduction, the heat flow is within and through the body itself. In contrast, in heat transfer by thermal radiation, the transfer is often between bodies, which can be spatially separate. Also possible is transfer of heat by a combination of conduction and thermal radiation. In convection, internal energy...
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...Seminar On Dental Ceramics – Metal Ceramics Presented by : Submitted to: Yashendra. Dr Kamlesh Vasudeva Dr Siddharth Phull Dr Anuj Wangoo Dr Sakshi Malhotra Dr Amit Sharma Dr Shiv Kumar INDEX Sr. No. | Topic | Page no. | 1 | Introduction | | 2 | History | | 3 | Terminology | | 4 | Classifications of Dental Ceramics | | 5 | Properties of Ceramics | | | Metal Ceramic Prostheses | | 6 | Compositions of Porcelain – for Metal Ceramics | | 7 | Requirements for a metal – ceramic system | | 8 | Effect of design on metal ceramic restorations | | 9 | Tooth preparation for PFM restorations | | 10 | Fabrication of porcelain | | a | Porcelain Condensation | | b | Sintering of Porcelain | | c | Method of fabrication | | 11 | Metal-Ceramic Crowns Based on Burnished Foil Copings | | 12 | Failure and repair of metal ceramic restorations | | 13 | Benefits and Drawbacks of Metal-Ceramics | | a | Aesthetic Potential of Metal-Ceramic Crowns Versus All-Ceramic Crowns | | 14 | Conclusion | | 15 | References | | INTRODUCTION The word ceramic is derived from the Greek word keramos which literally means ‘burnt stuff’ but which has come to mean more specifically a material produced by burning or firing. The term ceramic refers to any product made from a non-metallic inorganic material usually processed by firing at a high temperature to achieve desirable properties. This material is opaque, relatively weak and porous...
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...COMPUTER-AIDED DESIGN (CAD) AND COMPUTER-AIDED MANUFACTURING (CAM) Photo by: higyou Computer-aided design (CAD) and computer-aided manufacturing (CAM) are a pair of often interdependent industrial computer applications that have greatly influenced the chain of processes between the initial design and the final realization of a product. Many would add to this duo a third technology, computer-aided engineering (CAE). Ongoing refinements in CAD/CAM systems continue to save manufacturers tens of millions of dollars in time and resources over non-computerized methods. As a consequence, CAD and CAM technologies are responsible for massive gains in both productivity and quality, particularly since the 1980s. For some purposes CAD and CAM methods can be used exclusively of one another, and in general, CAD is used more commonly than CAM. CAD involves creating computer models defined by geometrical parameters. These models typically appear on a computer monitor as a three-dimensional representation of a part or a system of parts, which can be readily altered by changing relevant parameters. CAD systems enable designers to view objects under a wide variety of representations and to test these objects by simulating real-world conditions. CAM picks up where CAD leaves off by using geometrical design data to control automated machinery. CAM systems are associated with computer numerical control (CNC) or direct numerical control (DNC) systems. These systems differ from older forms...
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...recommendations as part of a comprehensive approach which is toward the prevention and fighting of crime. Some of the recommendations had found their way into the Omnibus Crime Control and Safe Streets Act of 1968. The Commission advocated a “systems” approach to the criminal justice. This approach improved coordination among the law enforcement, courts, and correctional agencies. The President’s Commission defined the criminal justice system as the means for the society to enforce the standards of conduct that is necessary to protect individuals and the community. The criminal justice system aims to reduce crime by bringing more offences to justice, and to raise confidence that the system is for the law-abiding citizens. They want to be able to balance the goals of crime control, prevention, and justice. The overarching goal for the criminal justice system plays a big role throughout the society when it comes to protecting our society. “The only thing constant is change” (Heraclitus). With technology on a rise and increasing demographic changes in contemporary America, saying that the future of law enforcement is unpredictable is very modest. Through the use of computer-aided dispatch (CAD), mobile computing, records management systems and database and information technology police and other law enforcement agencies have become more efficient. There are many other tools that are able to help officers protect our society. There are tools such as...
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...diverse topics ranging from thermal and fluid sciences to computer aided designing and manufacturing processes. During my third year I completed 3 design projects viz. Design of a 2 stage gearbox used in conveyors, design of a multi plate clutch for 2 wheelers and design of a 3 stage gearbox used in conveyor. The same year I also did an internship with the leading car-manufacturing company in India: “Mahindra Rise”. It was a 4-week internship where I worked as a training technician and assisted the auto-servicing department on various auto tune-ups and major overhauling operations. This gave me a deep insight into the troubleshooting mechanisms and quality checks of various automobile parts. Versatility is the key to success. On the academic front I have ventured away from subjects related to design. Taking a keen interest in the current energy crisis, in my final year I did a project on “The study and performance of a DISH TYPE SOLAR CONCENTRATOR for steam generation.” The aim of the project was to generate steam at a pressure of 2 bar and temperature of 150 degree Celsius for domestic use. Also we aimed to create a standard testing procedure for the Dish Type Solar Concentrator, which is now currently available for Solar Flat plate collectors only. Over the course of the project I also made myself acquainted with basic Solar Energy concepts and Thermal Engineering. Several operating parameters viz. Solar Intensity, Area of Aperture, reflectivity and thermal conductivity of fluid were...
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...Mechanical Engineers Qualities for Millennium 3 1) Bachelor’s Degree/Diploma in Mechanical Engineering or its equivalent. The mechanical engineer has been called the general practitioner and the jack-of-all trades among engineering professions. This is because he requires education and skills that span a broad range of technical, social, environmental, and economic problems. In general, however, the mechanical engineer is concerned with controlling the principles of motion, energy, and force through mechanical solutions. A mechanical engineer designs the tools and processes used for satisfying the needs of society through a combination of material, human, and economic resources. He might work on electric generators, internal combustion engines, steam and gas turbines, and other power-generating machines. He might also develop machines such as refrigeration and air-conditioning equipment, power tools, and other power-using machines. Engineers must combine a good understanding of science, mathematics, and computers with a good knowledge of current technology. At the high school level, the emphasis is on mathematics. Two years of algebra plus courses in geometry and trigonometry generally are required. In addition to the sciences and math, engineers need good communication skills, so don't neglect the liberal arts and humanities. In addition, remember that many of the large industrial firms that employ mechanical engineers are multinational...
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...Please do not call or email me and ask for an up dated resume… This is an up to date resume go to http://arthurwilson.vze.com And get a WORD DOC RESUME there. Thank You ARTHUR WILSON CLEVELAND, OHIO Home: (216) 441-3840 Cell : (216) 216 246-6422 Email : arthurwilson3rd@hotmail.com To see sample 3D models and Download Word doc of my resume, please go to my website at http://arthurwilson.vze.com http://www.turbosquid.com/Beta/Search/Index.cfm?keyword=arthurwilson3rd BACKGROUND: Over 20 years of practical work experience and on the job training in the engineering field. Experienced, capable and innovative mechanical designer with record of effective participation and leadership in vitally important and complex projects Demonstrated management competence and broad engineering comprehension by coordinating diverse mechanical engineering ,mechanical design and design drafting disciplines to effect optimum results in adhering to completion schedules and maintaining high quality, safe design and construction relating to the aerospace and defense industry per ANSI-Y-14.5 & DOD-D-100/DOD-STD-1000. EDUCATION: 1980 - 1983 Los. Angeles Trade Technical College Major Course of Study and Details of Classes Mechanical Design Drafting Computer Aided Drafting Tech. Illustration College Level Mathematics Mathematics for engineers ANSI-Y-14.5 Geometric Tolerances and Dimensioning Tolerance analysis and application in design/manufacturing practice. Tolerance...
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...uncompromising customer devotion and its award-winning proprietary business model, eCMMS, Hon Hai has been the most trusted name in contract manufacturing services (including CEM, EMS, ODM and CMMS) in the world. Focusing on fields of nanotechnology, heat transfer, wireless connectivity, material sciences, and green manufacturing process, besides from cooperating with the establishment of the research institution for nanotech, new material, and optical electric, Hon Hai also sets up several research centers and testing laboratories for mechanism, material, electronics to conduct the services of science research and technology development worldwide. Furthermore, Hon Hai’s devotion to develop nanotech, thermal treatment, nano measure, wireless network, environmental protection, CAD/CAE, optical plating technique, precision/nano processing, SMT, and network CMOS chips, in terms, allows Hon Hai to accumulate over 55,000 patents granted worldwide by 2012. This made Hon Hai a recognized leader of innovation and technical know-how in rankings such as MIT's or IPIQ’s patent scorecard. Aside from hardware related technology research and development investment, Hon Hai also relentlessly seeks to...
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...Please purchase PDFcamp Printer on http://www.verypdf.com/ to remove this watermark. List of Laboratories available with area of each lab and major equipments S. No Name of the Course Name of the laboratory/workshop Total Area of lab/ workshop sq.m Major equipment Cost in Lacs i) Applied Mechanic ii) Environment Lab. iii) Survey Lab. 1 Civil Engineering iv) Hydraulic or Fluid Mechanics Lab v) Material Testing Lab. 140.00 90.00 75.00 120.00 120.00 1) Compression Testing Machine 2) Tri axial Shear Test Apparatus 3) Direct Shear Test Apparatus 4) Electronic distance meter N1- 450 5) One second theodolite 6) Digital Planimeter 7) Auto level 8) PH Meter 8) Vicat Apparatus. 10) Le-Chatelier Apparatus. 11) Aggregate Impact Testing Machine. 12) Compaction Factor Apparatus. 13) Universal Testing Machine (100T) 14) Universal Testing Machine (20T) 15) Compression Testing Machine (200T) 16) Torsion Testing Machine 17) Hardness Testing Machine 18) Impact Testing Machine 19) Fatigue Testing Machine 20) Timber Testing Machine 21) Concrete Mixer 22) Tile Flexure Testing Machine Distillation Column, Surface Evaporation Equipment, Extraction Equipment Ball Mill, Pulveriser, Sieve Analyser, Plate and Frame Filter, PH Meter 0.59 0.24 1.23 3.95 8.78 2 Chemical Engineering i) Chemistry Lab ii) Mass & Transfer Lab iii) Process Control Lab. iv) Mechanical Operations Lab. 100.00 120.00 90.00 120.00 0.36 1.26 2.80 1.01 Please purchase PDFcamp Printer on http://www.verypdf...
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...The most important is the frame, because it defines the cockpit space and it was designed first. Consequently, the design needs to be made according to the frame shape in order to fit the seat and firewall into it. A part from the frame, it is also needed to coordinate the designing process with the different stages of the steering wheel and the fuel delivery system. 2. Manufacturing restrictions: It is also necessary to take into account the consequent restrictions of the manufacturing process. This means that the firewall and seat geometry needs to be designed considering the characteristics and limitations of the 5D CNC milling machine (used to obtain the milling models) and the Mould. The most important of these restrictions is the necessity of achieving and adequate geometry to be able to take out the final pieces from the Mould. That is why is desired to get smooth surfaces without sudden changes of direction and complicated shapes in order to avoid problems during the different manufacturing stages. 3. Rules...
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...CURRICULUM VITAE FOR MDUDUZI FREDERICK DUBE 1.0 Personal Details Surname: Dube Name: Mduduzi Frederick Cell No: +263 717 456367 Telephone: +2369485822 Email: mdufreddube@gmail.com Address: 12093 Nkulumane, Bulawayo National ID No: 06-2001837A19 Nationality: Zimbabwean Birth place: Binga 1.1 Personal Attributes A dynamic self starter capable of working with minimum supervision as well as working efficiently in a team. 2.0 Academic Qualifications 2.1Tertiary Education (NUST 2013) (a) Part I Examinations Course Grade Electrical and Electronic Engineering I 1 Ergonomics and Industrial Safety 1 Applied Mechanics 1 Workshop Technology II 1 Introduction to Computer Science I 2.1 Workshop Technology I 2.1 Introduction to Industrial Engineering 2.1 Electrical And Electronic Engineering II 2.1 Introduction to Computer Science II 2.1 Engineering Mathematics IB 2.1 Engineering Drawing II 2.1 Ergonomics And Industrial Safety II 2.1 Engineering Mathematics IA 2.2 Engineering Drawing I 2.2 Engineering Communication Skills 2.2 Overall Classification2.1 (b) Part II Examinations Dynamics I ...
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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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...admission. I excelled at subjects like Thermodynamics, Heat and Mass Transfer, Refrigeration and Air Conditioning, Combustion and Thermal Engineering as they aligned with my proclivity. I found these subjects to be most challenging and exciting, and various laboratory sessions helped me to correlate theoretical knowledge with practical phenomenon. My interest in these subjects led me to start few self-initiated research projects. Presently, I am involved in two research projects. The first research topic on which I also presented a seminar is titled “Theoretical Analysis of the Performance of Exhaust Gas driven Vapour Absorption Refrigeration System for Automobile Air Conditioning”. My research guide, Dr. Rajesh Patel being impressed by my efforts advised me to continue this research for my final year dissertation. In this project, I intend to substitute Vapour Compression Refrigeration System (VCRS) used for air conditioning in automobiles with Vapour Absorption Refrigeration System (VARS) which will provide better fuel economy by increasing engine efficiency.I prepared a MATLAB code to procure the optimum operating conditions for a given set of parameters. Under my leadership, my team worked out the sizing of each component and performed exergy analysis using the Engineering Equation Solver. Having obtained these results I designed a customized VARS system using the SolidWorks design software. Apart from providing a deep insight into concepts of Heat Transfer and Air Conditioning...
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...------------------------------------------------- Step 1: Choose mode table glossary small large 3" x 5" index card Want to print a test? Click here. Alphabetize Flip terms and definitions ------------------------------------------------- Step 2: Open the file Open PDF ------------------------------------------------- Step 3: Print it! ← Back to Set | PC Pro Certification Practice Exam A+ 220-801Study online at quizlet.com/_ipciw | 1. | An administrator wants to prevent people outside of the building from accessing a new wireless router. Which of the following is the LEAST labor intensive method to use while setting up new workstations? A. Turn SSID broadcast off B. Use wireless encryption C. Institute MAC filtering D. Setup static IP addresses | | A. Turn SSID broadcast off | 2. | After installing a bar code reader, which of the following is commonly done to configure the reader? A. Scan in program codes B. Enable the code reader in the BIOS C. Use Device Manager to enable I⁄R ports D. Adjust jumper switches | | A. Scan in program codes | 3. | After installing a new serial port card in a computer, the communication parameters need to be configured. Which of the following is the MOST common communication configuration for a serial port? A. Eight data bits, even parity, two stop bits B. Seven data bits, no parity, one stop bit C. Eight data bits, no parity, one stop bit D. Seven data bits, even...
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...Available online at www.sciencedirect.com Physics Procedia 12 (2011) 364–368 LiM 2011 Laser Additive Manufacturing and Bionics: Redefining Lightweight Design C. Emmelmanna, P. Sanderb, J. Kranzc*, E. Wyciska Laser Zentrum Nord GmbH (LZN), Harburger Schlossstr. 6-12, 21079 Hamburg, Germany b Airbus Innovation Cell, Kreetslag 10, 21129 Hamburg c Institute of Laser and System Technologies (iLAS), Hamburg University of Technology (TUHH), Denickestr. 17, 21073 Hamburg, Germany a Abstract New layer wise manufacturing technologies such as Laser Additive Manufacturing (LAM) allow innovative approaches to product design. Especially for lightweight design in aircraft applications LAM offers new possibilities for load-adapted structures. However, to fully capture lightweight potential of LAM technologies new design guidelines and processes have to be developed. A novel approach to extreme lightweight design is realized by incorporating structural optimization tools, bionic structures and LAM guidelines into one design process. By consequently following this design process designers can achieve lightweight savings in designing new aircraft structures. Keywords: Additive Layer Manufacturing; Laser Addative Manufacturing; Selective Laser Melting; light weight design; bionic design; structural optimization 1. Motivation In addition to already existing American competitors, a rising number of internationally acting companies from Far East and Russia lead to a steadily increasing...
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