...Faculty of Science School of Materials Science and Engineering Using Al6063 Chips to produce Porous Material by Powder metallurgy By YIFU FANG A thesis submitted for the Degree of Master of Engineering ACKNOWLEDGEMENTS I would like to express my special appreciation and thanks to my supervisor A/Prof. Sammy Chan who has been a tremendous mentor for me. I would like to thank you for encouragement of my research and guide me to learn how to think independently like a professional researcher. Your advice on both research as well as on my career have been priceless. And also appreciate the help from Andrew in ADFA who helped me to do the impact test and provided me plenty of background information about how the test worked. I really couldn't analyze the data without it. I would also like to thank our group member Andrew, Johnson and Alex who have assisted me to do the experiment and offer me some techniques for operating the experimental equipment. A special thanks to my family. Words cannot express how grateful I am. Thanks to you, I have this chance to study in this first class university and finally graduate. I would also like to express my gratitude to lab manager George Yang’s and Rahmat Kartono’s helps and trainings on my experiments. Thanks for all the supports from the the School of Materials Science and Engineering, UNSW Australia. ABSTRACT Recycling aluminium now is fairly popular in the world since more than 15% of the aluminium...
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...Section I—SIC and NAICS Codes The Standard Industrial Classification (SIC) is a system for classifying industries by a four digit code. The Security and Exchange Commission (SEC) uses SIC codes when sorting company filings. Companies that operate in a certain industry use a specific SIC code when filing with the SEC so that the type of business is properly identified. Identifying government contracts by their SIC description. The SIC system arrays the economy into 11 divisions, that are divided into 83 2-digit major groups, that are further subdivided into 416 3-digit industry groups, and finally disaggregated into 1,005 4-digit industries. While certain governmental departments and agencies, such as the SEC, still use the SIC, it is being replaced by the six-digit North American Industry Classification System (NAICS code). The NAICS is a 2- through 6-digit hierarchical classification system, offering five levels of detail. Each digit in the code is part of a series of progressively narrower categories, and the more digits in the code signify greater classification detail. The first two digits designate the economic sector, the third digit designates the subsector, the fourth digit designates the industry group, the fifth digit designates the NAICS industry, and the sixth digit designates the national industry. Section II—Game Theory and Hypothesis 2a In the set-up to Hypothesis 2a, the authors discuss the notion that players learn from past experiences and have a perfect...
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...Aluminum matrix * Continuous fibers: boron, silicon carbide, alumina, graphite * Discontinuous fibers: alumina, alumina-silica * Whiskers: silicon carbide * Particulates: silicon carbide, boron carbide STIR CASTING METHOD OF FABRICATION OF MMCs * Liquid state fabrication of Metal Matrix Composites involves incorporation of dispersed phase * into a molten matrix metal, followed by its Solidification. * In order to provide high level of mechanical properties of the composite, good interfacial * bonding (wetting) between the dispersed phase and the liquid matrix should be obtained. * Wetting improvement may be achieved by coating the dispersed phase particles (fibers). Proper * coating not only reduces interfacial energy, but also prevents chemical interaction between the * dispersed phase and the matrix. * The simplest and the most cost effective method of liquid state fabrication is Stir Casting. * 26 * Stir Casting * Stir Casting is a liquid state method of composite materials fabrication, in which a dispersed * phase (ceramic particles, short fibers) is mixed with a molten matrix metal by means of * mechanical stirring. * The liquid composite material is then cast by conventional casting methods and may also be * processed by conventional Metal forming technologies. * Stir Casting is characterized by the following features: * Content of dispersed phase is limited (usually not more than...
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...workpiece reinforcement percentage on volume of SiC particles on A356 alloy S.Madhavan1*, Deepak2, D.Hariprasad3, N.Muthukrishnan4 1,2,3,4 Department of Mechanical Engineering, Sri Venkateswara college of Engineering, Pennalur, Sriperumbudur – 602 105, Tamil Nadu, India 1*Corresponding author, Phone: 09543193510/ (044)26572970, e-mail: madhavan.tes@gmail.com Abstract Aluminum silicon carbide Metal Matrix Composites (Al-MMC) are widely used in aeronautical and automobile industries due to their excellent mechanical and physical properties. However machining this composites find difficult because of the reinforcement particles. Tools wear more quickly and reduce the life of the tool. This paper presents the experimental investigation on machining two different A356 matrix metal reinforced with 10 % and 20 % by weight of Silicon carbide (SiCp) particles is fabricated in house by stir casting method. Fabricated samples are turned on medium duty lathe with Poly crystalline Diamond (PCD) insert of 1600 grade at various cutting conditions. Parameters such as power consumed by main spindle, machined surface roughness and tool wear are studied and influence of SiC particles percentage on tool wear also discussed. Scanning Electron Microscope (SEM) images support the result. It is evident that, tool wear is strongly dependent on reinforcement percentage. Key words: A356 Alloy, PCD, Power consumed, Surface roughness, SiC percentage 1. Introduction Metallic matrix...
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...BENSON ELECTRONICS, Inc. In June o f 1 973 Phil Davidson, Operations Manager f or t he I ntegrated Circuit Division a t Ben son Electronics, voiced some thoughts concerning Benson's p resent situation. As a p roducer o f components and subassemblies f or t he c omputer i ndustry, Benson's f ortunes are closely t ied t o t he c omputer m anufacturers w ho purcha se much o f Benson's production. The c omputer i ndustry has continued t o g row d uring the past f ive t o t en years while i t has undergone a significant shake down. The period o f radical product change ha s been replaced by one t hat seeks reliable, c ompact, b ut sophisticated and cost competitive equipment. Although a n umber o f large companies have l eft t he i ndustry, there have also been some basic changes in t he w ay we m u st conduct busines s, so t hat c ompetition is n ow actually much keener and demanding t han b efore. The increasing cost competition in computer systems is passed down t o t he m arket f or c omputer components even'though t he r ate o f technological advance here has probably continued at a pace t hat is greater t han f or t he c omputer system itself. As a m ajor m anufacturer in t he c omputer industry and as an aggressive b idder f or g overnment subcontracts, Benson has been very successful so f ar, b ut success is b ecoming m ore and more expensive. Reflecting a continuous e ffort t o d evelop and apply t he m ost advanced technology possible t o t he design and...
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...Busting Barriers: Fansubbing and Distribution in the Age of ‘Piracy’ Interest in faucets of other world cultures has been an active gear for international trade, tourism travel, and educational relocation for almost as long as humans have existed in the universe. Regardless of clashing trends in fashion, ideals, political views and processes, choice in cuisine, religious beliefs, or spoken language people have always been interested in other parts of our vast world. But then a problem emerges…how much is it going to cost? How long will it take to get there? Is anyone actually interested? As with most things, it costs money to keep running, clean, or accessible to the public. Some people want to travel to some far away land and see a landmark, eat unique dishes with the locals, or even just catch up with the family…but not everyone can afford buying a plane ticket to such places. Or afford to learn how to speak the native tongue. Fansubbing, the activity of placing an aftermarket textual overlay on top of a video stream for the sole purpose of translating any audio or video contained within into another language by a member or group of members of the fan community, can trace it roots back to the 1970’s[1] when on military personal from the United States brought or sent VHS tapes home to friends and family from Japan, sparking interest in Anime in the United States. First it started off with small AV club showings in High Schools and Universities. Members would gather together...
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...Economic Consequences of Firms’ Depreciation Method Choice: Evidence from Capital Investments Scott B. Jackson* University of South Carolina Xiaotao (Kelvin) Liu Northeastern University Mark Cecchini University of South Carolina May 2009 * Corresponding author: Scott B. Jackson, School of Accounting, Moore School of Business, University of South Carolina, Columbia, SC 29208. E-mail: scott.jackson@moore.sc.edu. Phone: (803) 777-3100. Fax: (803) 777-0712. We gratefully acknowledge the comments of S.P. Kothari (the editor), an anonymous referee, Kin Blackburn, Tom Canace, Marc Caylor, Dutch Fayard, Victoria Glackin, Noah Jackson, Scott Whisenant, and Rich White. Electronic copy available at: http://ssrn.com/abstract=1415976 Economic Consequences of Firms’ Depreciation Method Choice: Evidence from Capital Investments Abstract: This study identifies several interrelated reasons why firms’ depreciation method choice is likely to influence managers’ capital investment decisions. We find that firms that use accelerated depreciation make significantly larger capital investments than firms that use straight-line depreciation. Further, we find that there has been a migration away from accelerated depreciation to straight-line depreciation over the past two decades. Firms that make such accounting changes make smaller capital investments in the post-change periods than in the pre-change periods. These results suggest that a choice made for external financial reporting purposes...
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...IND131 IND131xx IND331 IND331xx Terminals User’s Guide www.mt.com 64067481 (11/2012).06 © METTLER TOLEDO 2012 No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the express written permission of METTLER TOLEDO. U.S. Government Restricted Rights: This documentation is furnished with Restricted Rights. Copyright 2012 METTLER TOLEDO. This documentation contains proprietary information of METTLER TOLEDO. It may not be copied in whole or in part without the express written consent of METTLER TOLEDO. METTLER TOLEDO reserves the right to make refinements or changes to the product or manual without notice. COPYRIGHT METTLER TOLEDO® is a registered trademark of Mettler-Toledo, LLC. All other brand or product names are trademarks or registered trademarks of their respective companies. METTLER TOLEDO RESERVES THE RIGHT TO MAKE REFINEMENTS OR CHANGES WITHOUT NOTICE. FCC Notice This device complies with Part 15 of the FCC Rules and the Radio Interference Requirements of the Canadian Department of Communications. Operation is subject to the following conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant...
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...An Emperical Study of Export ,Import And Economic Growth in Malaysia Meloney Antong & Kartini Binti Kapin Department of Economics, Faculty Economics and Business Universiti Malaysia Sarawak ------------------------------------------------- Abstract This paper investigates the relationship between export and import to economic growth. This paper is an attempt to carry out an empirical examination of the hypothesis on export-led growth. It also determines the direction of causality between exports, import and output, and investigates short and long-run dynamic impact of exports, imports on GDP growth in case of Malaysia. ------------------------------------------------- Keywords : Economic Growth, GDP, Export and Import. 1. Introduction Development is the main aim of any economy. The basic of economic development is economic growth. In order to promote economic growth, export-led growth is considered as the key to accelerate the rewards of all factors of production. Economic growth can related to many various factor. The main aim for any economy is development and economic growth is the basic of economic development. Export can be define as the goods and services that produce in the country and sold to the other countries. While, import is the goods and services that bought into other country for trade purpose. But, its depend to the import quotas, tariffs and agreement between the country. Export will represent the important sources of foreign exchange...
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...| Are diamonds investor’s best friend? | Study on polished diamonds as an alternative investment. | | Presented by:Daria GoldobinaStudent number:080006193Supervised by:Anh L. TranIn partial fulfilment of the:BSc Business Studies, Cass Business SchoolDate:24th March 2011I certify that I have complied with the guidelines on plagiarism outlined in the Course Handbook in the production of this dissertation and that it is my own, unaided work.Signature:__________________________________________ | | This work is dedicated to the memory of my beloved grandfather Ivan Smolin. He was a sweet, kind and sensitive man who devoted his life to studying precious stones and metals. He enriched my life with passion to beauty. If God wanted us to bend over he'd put diamonds on the floor Joan Rivers Contents Acknowledgements 3 Executive summary 7 I Introduction 10 Ground for discussion 10 Objectives 10 Methodology 11 II Literature review and hypothesis development 12 Overview 12 Introduction 12 History of diamonds 12 Industry structure 13 DeBeers cartel 15 Diamond valuation 16 Diamond valuation process 16 Determinants of diamond prices 18 Diamond as an investment 19 Types of investment 19 Problems associated with investing in diamonds 20 Benefits associated with investing in diamonds 20 Alternatives to investing in diamonds 23 Hypothesis development 25 III Methodology 26 Data collection 26 Primary research 26 Secondary...
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...Effects of processing temperature, screw speed, and heating conditions on the mechanical properties of pure PVC (Polyvinyl chloride) Harsh Bhalani | 2012ABPS552P Pankhuri Priya | 2012ABPS655 Radhika Gupta | 2012ABPS668P Sanjana Teje | 2012ABPS498P TABLE OF CONTENTS Title Page Table of Contents…………………………………………………………………………………………………1 Abstract……………………………………………………………………………………………………………….2 Introduction…………………………………………………………………………………………………………2 Literature Review………………………………………………………………………………………………..6 Materials & Equipment Required………………………………………………………………………..18 Design of Experiment…………………………………………………………………………………………..19 Methodology……………………………………………………………………………………………………….21 Lab Work……………………………………………………………………………………………………………..22 Analysis……………………………………………………………………………………………………………….29 Sources of Error…………………………………………………………………………………………………...32 Conclusions………………………………………………………………………………………………………….32 Verification of Hypothesis……………………………………………………………………………………33 References…………………………………………………………………………………………………………..33 1| Abstract The effects of the temperature of heating zones and the screw speed of the extruder on the tensile strength of the PVC sheets produced has been analysed in our report. In order to get a brief idea of the possible results, a literature review of some of the previous papers on similar topics was done. We designed our experiment based on CCRD, but due to time constraints and the shortage of raw material we had to use the full factorial method to vary parameters...
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...TEST DE ELLIOT - ROTHENBERG Y STOCK El ERS señala la prueba optima es basado en la regresión cuasi-diferenciando definida en la ecuación dyta=dxtaδa+ ηt. Al definir los residuos de dyta=dxtaδa+ ηt como ηta=dyta- dxtaδ(a) y permitio SSRa=ηt2 (a) sea la función de los residuos suma de los cuadrados. El ERS (factible) señala el estadístico de la prueba óptima de la hipótesis nula α=1 que contra la alternativa α=a que, se define entonces como: Pt=(SSRa-aSSR1)f0 H0: La serie tiene una raíz unitaria H1: La serie no tiene una raíz unitaria. Donde es f0 un estimador del espectro residual al cero de frecuencia y donde es una función residual acumulativa. Los valores críticos para el ERS prueban la estadística, se computan interpolando los resultados de la simulación proporcionados por ERS para T=50,100,200…∞. El método busca minimizar la diferencia cuadrática entre los valores de la serie y los valores de la tendencia determinística, para distintos valores de (que dependen del parámetro c) y para =1. Una vez obtenidos los residuos de la estimación eficiente (es decir, aquella que minimiza la diferencia mencionada), se aplica un test de Dickey-Fuller sin constante o deriva y sin tendencia, por cuanto se trabaja con una serie transformada por precisamente la remoción de la tendencia determinística. EJEMPLO CON DATOS DEL PIB EN EVIEWS UNIT ROOT EN NIVELES CON 11 REZAGOS Null Hypothesis: PIB has a unit root | | Exogenous: Constant | | | Lag length: 4 (Spectral...
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...End-of-Chapter Questions and Problems We have found that many students learn better when they have plenty of opportunity to practice; therefore, we provide extensive end-of-chapter questions and problems. The end-of-chapter support greatly exceeds typical introductory textbooks. The questions and problems are segregated into three learning levels: Basic, Intermediate, and Challenge. All problems are fully annotated so that students and instructors can readily identify particular types. Answers to selected end-of-chapter material appear in Appendix C. See Chapter 6, page 191; Chapter 9, page 305. New! What’s on the Web? These end-of-chapter activities show students how to use and learn from the vast amount of financial resources available on the Internet. See examples in Chapter 1, page 22; Chapter 4, page 126. New! S&P Market Insight Problems Most chapters include two or three new end-of-chapter problems that require the use of the Educational Version of Market Insight, Standard & Poor’s powerful and well- known Compustat® database. These problems provide an easy, online way for students to incorporate current, real-world data into their learning. See examples in Chapter 3, page 92; Chapter 4, page 125. xv Basic (continued ) Intermediate (Questions 19–20) Challenge (Questions 21–23) c. If you apply the NPV criterion, which investment will you choose? Why? d. If you apply the IRR criterion, which investment will you choose? Why? e. If...
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...RSM M.Sc. in Strategic Management Master thesis Learning from M&A: the impact of the different types of distance Dr. Yang Fan (Supervisor) Dr. Jatinder Sidhu (Co-reader) Alexandre Favre ID 402770 Completed the 14th of June 2014 1 Preface: The copyright of the Master thesis rests with the author. The author is responsible for its contents. RSM is only responsible for the educational coaching and cannot be held liable for the content 2 Contenu 1. Introduction .................................................................................................................................................... 5 2. Literature review ........................................................................................................................................... 9 2.1 International mergers and acquisitions ................................................................................................. 9 2.2 Mergers and acquisitions’ experience and performance implications .......................................... 10 2.3 The impact of the type of distance on the merger and acquisition’s learning process ............................. 12 2.3.1 Cultural distance............................................................................................................................... 12 2.3.2 Administrative distance ................................................................................................................... 13 2.3.3 Geographic...
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...J. of Multi. Fin. Manag. 13 (2003) 123 Á/139 www.elsevier.com/locate/econbase Foreign-denominated debt and foreign currency derivatives: complements or substitutes in hedging foreign currency risk? William B. Elliott a,*, Stephen P. Huffman b, Stephen D. Makar b a Department of Finance, Oklahoma State University, 224 Business, Stillwater, OK 74078, USA b University of Wisconsin Oshkosh, Oshkosh, WI, USA Received 30 June 2001; accepted 20 April 2002 Abstract Using a unique dataset, this study examines the relationship between foreign-denominated debt (FDD), foreign currency exposure and foreign currency derivative (FCD) use, for a sample of US multinational corporations. We find a positive relationship between the exposure to foreign currency risk and the level of FDD, indicating that this debt may be used as a hedge. Moreover, FDD is negatively related to the use of FCD. We interpret this as further evidence that FDD is used as a hedge, and substitutes for the use of FCD in reducing currency risk. # 2002 Elsevier Science B.V. All rights reserved. Keywords: F23 Keywords: Hedging; Foreign debt; Currency derivatives 1. Introduction US multinational corporations (MNCs) employ a variety of financial and nonfinancial techniques to reduce or hedge their exposure to changing exchange rates (e.g. Bodnar et al., 1998; Marshall, 2000). Financial techniques include foreign- * Corresponding author. Tel.: '/1-405-744-8639; fax: '/1-405-744-5180 E-mail address: elliowb@okstate...
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