2387‚ Page 1 Control of an Electronic Expansion Valve Using an Adaptive PID Controller Antônio A. T. Maia*‚ Marconi A. Silva‚ Ricardo N. N. Koury‚ Luiz Machado‚ Alexandre C. Eduardo Federal University of Minas Gerais‚ Mechanical Engineering Department‚ Belo Horizonte‚ Minas Gerais‚ Brazil Phone: + (55 31) 3409 6667‚ Fax: + (55 31) 3443 3783‚ e-mail: aamaia@ufmg.br ABSTRACT In many refrigeration systems‚ electronic expansion devices have been used to replace the conventional expansion devices
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BELGAUM AQUA VALVES PVT. LTD. CHAPTER 1 INTRODUCTION 1.1 Background of the Study Organizational studies‚ sometimes known as organizational science‚ encompass the systematic study and careful application of knowledge about how people act within organizations. Organizational studies include the following disciplines: industrial and organizational psychology‚ organizational behaviour‚ human resources‚ change management‚ ethical and customer value management. Organizational studies encompass
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Aortic Valve Stenosis Aortic Valve Stenosis is the narrowing or obstruction of the heart ’s aortic valve. The aorta is a large artery that originates in the left ventricle (lower chamber) of the heart. The narrowing and obstruction of the aortic valve prevents it from opening properly and blocks the flow of blood from the left ventricle to the aorta and onward towards the rest of the body. Aortic valve stenosis occurs in approximately 5 out of every 10‚000 people.1 It occurs more commonly
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SPIN VALVE TRANSISTOR Technical Seminar Report Submitted in partial fulfillment Of the requirements for the award of the degree of BACHELOR OF TECHNOLOGY In ELECTRONICS & COMMUNICATION ENGINEERING By B.AVINASH (08C01A0426) . Department of Electronics and Communication Engineering
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Valve Software‚ the maker of computer game classics suck as Half Life‚ Portal and Left 4 Dead is a unique company that has adopted a very unordinary approach to management – there is none. Based in Bellevue‚ Washington‚ with over 300 employees‚ the company operates with no managers and is structured as organic and flat. To replace a hierarchy or codified divisions of labour‚ the company has implemented the use of a staff handbook that outlines the company’s values and operations. The lack of
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What Valve does differently to manage and motivate people is basically by having no managers. Valve lets their employees pick their own projects they want to work on. Since Valve is a ‘Flatland’‚ employees pick which projects they want to help work on and can even be recruited by other employees to work on a project with them. You can even move your desk around to different places to work with different people on different projects. They motivate their employees by letting them be creative and
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each have three semi-lunar cusps‚ which curve outward and into the opening of the receiving blood vessel. What separates the semilunar valves from the atrioventricular (AV) valves is that the semilunar valves contain no presence of papillary muscles or chordae tendineae. This is because pressure within the heart falls in this area‚ thereby forcing the semilunar valves to close on their own. The hearts is a prime member of the circulatory system: the system that circulates blood and lymph through the
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Heart Valve Transplants The heart‚ the most important organ in the body‚ plays a vital role in a supplying the body with all of the nutrients needed. Not only does the heart pump blood through the body‚ but it also carries oxygen to help the body function correctly and it allows for the removal of waste product. Because the heart is so essential to human body‚ its structure and function is equally as important. The heart is designed to pump blood through its chambers. The top two chambers
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States alone. Essentially it is a faulty heart valve‚ particularly the mitral valve (hence the name). Because of this valve’s malfunction‚ when the heart normally contracts to pump blood through the body‚ the mitral valve slips back into place too fragile. In direct opposition to this condition is mitral valve stenosis that is when the mitral valve is too rigid and not flexible enough. Basically‚ the problem with mitral valve prolapse is that the mitral valve is just too flexible. While the
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Yeats Valves and Controls Inc. Case Study Case Studies in Finance Class: Case Discussion in Finance Submission Date: 23.12.2012 Case Discussion in Finance – Yeats Valves and Controls Inc. Table of contents 1 2 3 3.1 Issue Statement Is there a strategic fit between Yeats and TSE? Data Analysis Calculation of the WACC 4 5 6 6 3.1.1 Return on equity ............................................................................................................................ 7 3.1.2 Return
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