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Pumps may be classified in two general types, dynamic and positive displacement. Positive displacement pumps are those in which energy is imparted to the liquid in a fixed displacement volume, such as a casing or a cylinder, by the rotary motion of gears, screws, or vanes, or by reciprocating pistons or plungers. Centrifugal pumps are dynamic pumps. Energy is imparted to the liquid by means of a disk with curved vanes rotating on a shaft called the impeller. The impeller imparts kinetic energy to the fluid by means of its shape and high rotational velocity. This energy is transformed to pressure energy when the fluid reaches the pump casing (see Figure 1-12). The pressure head difference between the inlet and the outlet, or Total Head produced by the pump, is proportional to the impeller speed and diameter. Therefore, to obtain a higher head, the rotational speed or the impeller diameter can be increased. To learn more about how a centrifugal pump increases a fluid's pressure, see reference 15. How a pump produces pressure is beyond the scope of this book, but an interesting experiment you can try at home will illustrate a similar process. A small plastic bottle is required to which a string is attached. Twist a rubber band around the bottle’s neck a few times and attach two 3-foot long strings, one on each side of the glass. Tie the other ends of the string together, fill the glass half full with water and hold it suspended from the strings. Start spinning. As you may have guessed, the fluid inside the glass will become pressurized. How do you know that the fluid is pressurized? To prove it to yourself, make a very small hole in the glass bottom. Make the hole just large enough for water to dribble through. Now spin the glass again. The water will spray out of the glass bottom no matter what its position, up or down. ...
SBMPTN Info Day 2013 Acara Sosialisasi Seleksi Bersama Masuk Perguruan Tinggi Negeri Tahun 2013 Dr. Emil Budianto Ketua Pantia Lokal SBMPTN Jakarta SELEKSI MAHASISWA MASUK PTN PRESTASI AKADEMIK SNMPTN KEBIJAKAN PENERIMAAN MAHASISWA PTN UJIAN TERTULIS SBMPTN Pola seleksi yang dilaksanakan secara bersama oleh PTN di seluruh Indonesia yang diselenggarakan melalui ujian tulis KARAKTERISTIK TES TERTULIS 1 2 • mengukur kemampuan penalaran atau kemampuan berpikir tingkat tinggi (higher order thinking) yang memprediksi keberhasilan calon mahasiswa di semua program studi di Perguruan Tinggi. • terdiri dari Tes Potensi Akademik (TPA), Tes Kemampuan Dasar Umum (TKDU), Tes Kemampuan Dasar Sains dan Teknologi (TKD Saintek), dan Tes Kemampuan Dasar Sosial dan Humaniora (TKD Soshum). Perbedaan SNMPTN 2012 dengan SBMPTN 2013
Name Address Phone Email RESEARCH INTERESTS Distribute Systems Control Robust Decentralization Control Mechantronics and Artificial Intelligence Optimization and Robust Control Robotics and Control Precision Engineering Intelligent Control Metrology Automation Applied Nonlinear Control System Identification Vibration Analysis and Control TEACHING INTERESTS Kinematics and Dynamics Feedback Control Mechatronics Nonlinear Control Introduction to Robotics Vibration Analysis and Control Optimization and System Identification Robust Control EDUCATION Ph.D. in Mechanical Engineering, University of Delaware, 2003 Dissertation Title: Modeling and Control of a Flexible Cable System Overall GPA: 3.43/4.0. Major GPA: 3.52 M.S. in Precision Instrument Engineering, Tianjin University, 2000 Thesis Title: A Novel Design of Highway Retroreflector Measurement Devise. Overall GPA: 82.35/100. Major GPA: 87.1/100 B.S. in Precision Instrument Engineering, Tianjin University, 1994 Thesis Title: Research on the Microcomputer Controlled Pressure Measuring System. B.A. minor in Humanities and Social Sciences, Tianjin University, 1994 Thesis Title: The Position of Futurology in the History of Western Philosophy. RESEARCH EXPERIENCE Research Assistant, University of Delaware, 2002-2003 • Developed the model for compliant cable systems with varying cable lengths. • Designed a Lyapunov controller to suppress the vibration of cables. The controller guaranteed the stability of the system and assured the goal of the slider. • Designed a robust controller on the experimentally identified model using H control and LQG/miniMax methodology. • Conducted experiments on flexible six order-of-freedom cable suspended robots using dSPACE 1103 systems with real-time workshop, where the differential flatness theory was applied to calculate the positive tension inputs. • Designed an EKG measurement device for laboratory instruments class. Intern Researcher, Australia Defense Force Academy, 2002 • Designed and successfully implemented robust controller for a flexible cable transporter system, and dramatically reduced the residual vibration. • Derived the model of flexible cable systems using subspace identification t theory. NAME Page 2 of 6 Research Assistant, Tianjin University 1997-2000 • Designed an automatic retroreflector measuring device including mechanical design, electrical circuit design, and optical system for highway applications. • Directed two undergraduate students’ research and supervised their thesis. • Composed the funding proposals which amounted to $50,000. • Taught undergraduate class, supervised experiments and graded assignments. TEACHING EXPERIENCE Graduate Assistant, Mechanical Engineering, University of Delaware, 2001-2001. • Maintained the homepage for the department, using HTML/mSQL languages. • Led group discussions, prepared the experiment instrumentation, graded their assignments, and video recording presentations for the senior design 2000 class. Assistant Lecturer for introductory electronics experiment, Tianjin University • Preparation of the experimental procedure, setup of the experimental apparatus, providing the introduction of the experiment, responding to their questions they encountered in the experiment, and grading their reports. • Students rated my lecture 4.5 out of 5 point scale. INDUSTRIAL EXPERIENCE Intern Software Engineer, Zhongxing Communication Inc, Shanghai, 2000. • Developed one module of switchboard software for fee-charging purpose. Project Leader, Daewoo Company, Seoul, 1996-1997. • Directed and administrated the training process of a fifteen-member group. • Exhibited leadership while enhancing teamwork to achieve stated goals. Mechanical Design Engineer, Qingdao Brown-Sharpe Inc., 1994-1996. • Conceptualized and designed prototype of Coordinate Measuring Machine. • Conducted FEM/FEA of the frame and the outer cover of the CMMs. • Enhanced the frame rigidity and the measurement accuracy dramatically by proposing novel ideas and improving previous design. COMPUTER SKILLS Operating Systems: Computer Languages: Scientific Applications: Technical Drawing: Office Applications: Internet Development: Database: ...
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Designer: Crispin Porter & Bogusky Designer: John Sexton & Chandler Resouro 2013 Packaging Design Award Winners SERIES ENTRIES DOUBLE GOLD SERIES MEDAL WINNERS Kah, Mexico Blanco, Reposado, and Añejo Tequilas Designer: Sandra Lugo Maestro Tequilero, Mexico Extra Añejo Tequilas Designer: Pepe Santiago GOLD SERIES MEDAL WINNERS Coney Island Carlo, New York Vodka, Gin, Rum, Whiskey Bourbon, Spiced Rum, and Tequila Designer: Carlo Fodera, C & C Distributors Grand Mayan, Mexico Ultra-Aged and Silver Tequilas Designer: Carols Monsalve S I LV E R S E R I E S M E D A L W I N N E R S Deep Eddy Vodka, USA Vodka and Grapefruit Vodka Dulce Vida, Mexico Organic Blanco, Reposado, and Añejo Tequilas Designer: Flash Bang Agency Glenmorangie, Scotland The Prestige Range: 18 YO & 25 YO Glenmorangie, Scotland The Extra Matured Range: Lasanta, Quinta, and Nectar D'Or Shellback, Barbados Silver and Spiced Rums Designer: E & J Gallo Winery Suerte, Mexico Blanco, Reposado, and Añejo Tequilas BRONZE SERIES MEDAL WINNERS Dillon's Small Batch Distillers, Ontario, Canada Vodka, Gin and Rye Designer: Insite Design - Barry Imber El Capote Charro, Mexico Kiwi-lime, Mandarin Orange, Raspberry-Pomegranate, and Blackberry Flavored Tequilas Silver, Reposado, and Añejo Tequilas Designer: Tequila & Art, Luis-Ignacio Gonzalez Religion, Mexico Blanco, Reposado, and Añejo Tequilas Designer: Charl Laubscher & Lauren Marriot, Beyond Design
UNDERSTANDING FURNITURE STYLES Chapter 20 CHANGING STYLES How Styles are Identified … Some furniture styles are identified by the person who originated the design Some furniture styles are identified by the general design movement of the time Some furniture styles are identified by the era in which they were first made. – Called “Period Pieces” – Often named for the king or queen who was in power during that time Classic and Fads Classics – Stand the test of time; now in museums or collector’s homes; replicas created Fads – Come in and out; some fads never return WHY DESIGNS CHANGE Several reasons … available materials, methods of manufacturing, changes in lifestyle, tastes Materials and Manufacturing Modern synthetic materials have different properties than traditional wood, thereby creating potential for new designs. – Example – Wood chairs are carved while some plastic chairs may be molded from liquid plastic. As new materials are developed, furniture makers experiment with different processes to develop new furniture. WHY DESIGNS CHANGE Lifestyle Changes Designs often reflect the time during which the pieces were made and the lifestyles of the people who used the furniture. • Example – 18th century in France and England … much of the furniture was formal and elegant, reflecting the lifestyle of the royal courts. • Example – Early colonialist of the New World … much plainer and informal. WHY DESIGNS CHANGE Changes in Taste Styles changes from era to era Influenced by several factors, such as lifestyle, fashion, and needs Think about how a computer desk of the 21st century differs from an earlier century … what would some differences be?
Computer scientists, Len Bosack and Sandy Lerner, from Stanford University, found Cisco Systems. The company is named for San Francisco, gateway to the Pacific Rim. Beginning to experiment with connecting detached networks, Bosack and Lerner run network cables between two different buildings on the Stanford campus, connecting them first with bridges, and then routers. Bosack’s and Learner’s vision is to enable disparate networks to talk with each other and share information reliability. But in order for the networks to be truly interconnected, a technology has to be invented that can deal with the disparate local area protocols. With that idea in mind, the multi-protocol router is born. Cisco gets involved with the introduction of the Internet Engineering Task Force (IETF). The IETF is an international community of network designers, operators, vendors and researchers concerned with the evolution and operation of Internet architecture. http://www.ietf.org • Cisco forever changes the networking communications industry and the Internet by launching its first routing innovation, the AGS multi-protocol router. The industry gains momentum and credibility with the establishment of the first TCP/IP Interoperability conference in March 1987, held in Monterey, California, establishing an official forum for vendors to test the compatibility of their products. The name of the conference changes to INTEROP the following year.
Students in an introductory engineering mechanics (statics) course are randomly divided into two groups. Both groups receive identical instruction except for roughly once per week, for the first half of the semester. During these exceptional sessions, one group is given hands-on manipulatives with which to solidify concepts, while the other group is not. The degree of learning is assessed with a midterm multiple choice concept test and midterm problem solving whose questions have multiple interconnected parts. Overall, the two groups show no notable difference in learning. However, when one looks at electrical engineering (EE) students and mechanical engineering (ME) students separately, it appears that the EE students benefit from the hands-on exercises, while the ME students might be better without. Key words: engineering mechanics, statics, hands-on, inquiry learning INTRODUCTION According to current understanding, we humans think, learn, and solve problems by making connections and associations to our previous experiences . It follows that if one's first exposure to engineering concepts takes place by passively hearing it in a lecture or by reading it in a textbook, the experience may not be sufficiently significant or rich to build connections. Hake  conducted a study of more than 6,500 students in 62 different introductory physics courses. He found that students taking interactive engagement (IE) courses had dramatically better conceptual understanding, compared to students taking traditional courses. Here, Hake defines “interactive engagement” (IE) courses as ... those designed at least in part to promote conceptual understanding through interactive engagement of students in heads-on (always) and hands-on (usually) activities which yield immediate feedback through discussion with peers and/or instructors. In Hake's study, “traditional” courses are those that make little use of IE methods. A partial list of other studies that corroborate and build upon Hake's findings include [3, 4, 5, 6, 7, 8, 9]. Some of these other results are even more dramatic. One particularly interesting study is that by Redish et al.  who show evidence that the gains derived from IE learning are due to the type of instruction rather than differences in time on task or the skills of individual instructors.
Course Description: This course is designed for advanced undergraduate students at chemistry department of Florida International University. Our aim is to provide the basic training in biochemical laboratory for our students. Textbook: Fundamental Laboratory Approaches for Biochemistry and Biotechnology by Alexander J. Ninfa and David P. Ballou. Grading: Your grade will depend on your experimental results, your lab reports, and your performance in each class. Your preparation of experiments, understanding of each experiment, and answers to the instructor’s questions in the class will also contribute to your final grade. SUMMARY OF TEST PRINCIPLE AND CLINICAL RELEVANCE The 22 analytes described in this method constitute the routine biochemistry profile. The analyses are performed with a Hitachi Model 917 multichannel analyzer (Roche Diagnostics, Indianapolis, IN). Each analyte is described separately within each pertinent section of this document. NOTE: Glucose, cholesterol, and triglycerides were analyzed as part of this profile, but the results do not replace the formalized reference methods data from NHANES 1999–2000 samples analyzed at other institutions. Alanine Aminotransferase (ALT) α-Ketoglutarate reacts with L-alanine in the presence of ALT to form L-glutamate plus pyruvate. The pyruvate is used in the indicator reaction for a kinetic determination of the reduced form of nicotinamide adenine dinucleotide (NADH) consumption. The International Federation of Clinical Chemistry (IFCC) has now recommended standardized procedures for ALT determination, including 1) optimization of substrate concentrations, 2) the use of Tris buffers, 3) preincubation of a combined buffer and serum solution to allow side reactions with NADH to occur, 4) substrate start (αketoglutarate), and 5) optimal pyridoxal phosphate activation. As a group, the transaminases catalyze the interconversion of amino acids and α-keto acids by transferring the amino groups. The enzyme ALT been found to be in highest concentration in the liver, with decreasing concentrations found in kidney, heart, skeletal muscle, pancreas, spleen, and lung tissue. Alanine aminotransferase measurements are used in the diagnosis and treatment of certain liver diseases (e.g., viral hepatitis and cirrhosis) and heart diseases. Elevated levels of the transaminases can indicate myocardial infarction, hepatic disease, muscular dystrophy, or organ damage. Serum elevations of ALT activity are rarely observed except in parenchymal liver disease, since ALT is a more liver-specific enzyme than asparate aminotransferase (AST) (1).
The instructor's expectations for students during the semester: The students will be responsible for all materials covered in each lab and assigned in the book and lab reports. The students are expected to read the appropriate materials in the text before each laboratory. The key to success is hard work. Learning Outcomes: The overall goal of this course is for students to understand the basic principles of biochemistry laboratories. To this end, the following major learning outcomes shall apply: Students are expected to understand basic techniques in biochemistry. A necessary prerequisite for professional performance in the laboratory is preparation. Since our schedules are very tight for every experiment, you have to make sure you have read the experimental and instrumental instructions before coming to the class. Please bring an outline how to make your solutions and perform your experiments to the class. We have included a schedule in this manual. You are expected to take all classes. Otherwise, you will be advised to drop the class. However, some special emergency circumstances, for example illness when accompanied with a signed letter from a medical doctor stating explicitly that you are not able to take the class on that day for your own health reasons, will be considered. If you are not able to attend the class, please inform the instructor immediately so that an alternative can be arranged. Since you are registering a formal class at FIU, it is your benefit to arrive prior to 2:00 PM. You are allowed to be late for two times. After the third time late, you will be advised to drop this class. You will not allow attending the class after 2:30 PM. please come to the class on time! All experimental results should be documented in your laboratory notebook, which will provide a solid basis for writing your lab report. The original data sheets must accompany your reports.
In this tutorial you create a slider crank mechanism using a combination of revolute and cylindrical joints. You will also experiment with additional plotting utilities in CATIA. 1 Problem Statement A slider crank mechanism, sometimes referred to as a three-bar-linkage, can be thought of as a four bar linkage where one of the links is made infinite in length. The piston based internal combustion is based off of this mechanism. The analytical solution to the kinematics of a slider crank can be found in elementary dynamics textbooks. In this tutorial, we aim to simulate the slider crank mechanism shown below for constant crank rotation and to generate plots of some of the results, including position, velocity, and acceleration of the slider. The mechanism is constructed by assembling four parts as described later in the tutorial. In CATIA, the number and type of mechanism joints will be determined by the nature of the assembly constraints applied. There are several valid combinations of joints which would produce a kinematically correct simulation of the slider crank mechanism. The most intuitive combination would be three revolute joints and a prismatic joint. From a degrees of freedom standpoint, using three revolute joints and a prismatic joint redundantly constrains the system, although the redundancy does not create a problem unless it is geometrically infeasible, in this tutorial we will choose an alternate combination of joints both to illustrate cylindrical joints and to illustrate that any set of joint which removes the appropriate degrees of freedom while providing the capability to drive the desired motions can be applied. In the approach suggested by this tutorial, the assembly constraints will be applied in such a way that two revolute joints and two cylindrical joints are created reducing the degrees of freedom are reduced to one. This remaining degree of freedom is then removed by declaring the crank joint (one of the cylindrical joints in our approach) as being angle driven. An exercise left to the reader is to create the same mechanism using three revolute joints and one prismatic joint or some other suitable combination of joints. We will use the Multiplot feature available in CATIA is used to create plots of the simulation results where the abscissa is not necessarily the time variable.