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Finite Element Method Analysis of a MEMS Based Heat Exchanger with Different Channel Geometries

Finite Element Method Analysis of a MEMS Based Heat Exchanger with Different Channel Geometries Book
Author : N.A
Publisher :
Release : 2017
ISBN :
Language : En, Es, Fr & De

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Book Description :

Abstract: The Micro-Electro-Mechanical System (MEMS) based heat exchangers had become popular recently in many practical applications. For example, MEMS heat exchangers can be used as a cooling system for micro-chips squeezed into smaller and smaller spaces, with very little place for heat to escape. Therefore, the improvement of their heat transfer characteristics is a key issue for the development of micro-scale integrated systems. In this paper, it was implemented a basic unit model for a micro-heat exchanger using commercial Finite Element Method (FEM) package Comsol Multiphysics (version 5.0). Thermal performance for this model having four different fluid channel geometries: circular, rhombic, square and octagonal was investigated in terms of the temperature gradient, effective volumetric heat capacity, total internal energy and total enthalpy distributions along the hot and cold channels.

Materials and Failures in MEMS and NEMS

Materials and Failures in MEMS and NEMS Book
Author : Atul Tiwari,Baldev Raj
Publisher : John Wiley & Sons
Release : 2015-09-11
ISBN : 1119083869
Language : En, Es, Fr & De

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Book Description :

The fabrication of MEMS has been predominately achieved by etching the polysilicon material. However, new materials are in large demands that could overcome the hurdles in fabrication or manufacturing process. Although, an enormous amount of work being accomplished in the area, most of the information is treated as confidential or privileged. It is extremely hard to find the meaningful information for the new or related developments. This book is collection of chapters written by experts in MEMS and NEMS technology. Chapters are contributed on the development of new MEMS and NEMS materials as well as on the properties of these devices. Important properties such as residual stresses and buckling behavior in the devices are discussed as separate chapters. Various models have been included in the chapters that studies the mode and mechanism of failure of the MEMS and NEMS. This book is meant for the graduate students, research scholars and engineers who are involved in the research and developments of advanced MEMS and NEMS for a wide variety of applications. Critical information has been included for the readers that will help them in gaining precise control over dimensional stability, quality, reliability, productivity and maintenance in MEMS and NEMS. No such book is available in the market that addresses the developments and failures in these advanced devices.

Advances in Artificial Intelligence Software and Systems Engineering

Advances in Artificial Intelligence  Software and Systems Engineering Book
Author : Tareq Ahram
Publisher : Springer
Release : 2019-06-10
ISBN : 3030204545
Language : En, Es, Fr & De

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Book Description :

This book addresses emerging issues resulting from the integration of artificial intelligence systems in our daily lives. It focuses on the cognitive, visual, social and analytical aspects of computing and intelligent technologies, highlighting ways to improve the acceptance, effectiveness, and efficiency of said technologies. Topics such as responsibility, integration and training are discussed throughout. The book also reports on the latest advances in systems engineering, with a focus on societal challenges and next-generation systems and applications for meeting them. The book is based on two AHFE 2019 Affiliated Conferences – on Artificial Intelligence and Social Computing, and on Service, Software, and Systems Engineering –, which were jointly held on July 24–28, 2019, in Washington, DC, USA.

MEMS

MEMS Book
Author : Mohamed Gad-el-Hak
Publisher : CRC Press
Release : 2005-11-29
ISBN : 1420036572
Language : En, Es, Fr & De

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Book Description :

As our knowledge of MEMS continues to grow, so does The MEMS Handbook. The field has changed so much that this Second Edition is now available in three volumes. Individually, each volume provides focused, authoritative treatment of specific areas of interest. Together, they comprise the most comprehensive collection of MEMS knowledge available, packaged in an attractive slipcase and offered at a substantial savings. This best-selling handbook is now more convenient than ever, and its coverage is unparalleled. The first of three volumes, MEMS: Introduction and Fundamentals covers the theoretical and conceptual underpinnings of the field, emphasizing the physical phenomena that dominate at the micro-scale. It also explores the mechanical properties of MEMS materials, modeling and simulation of MEMS, control theory, and bubble/drop transport in microchannels. Chapters were updated where necessary, and the book also includes two new chapters on microscale hydrodynamics and lattice Boltzmann simulations. This volume builds a strong foundation for further study and work in the MEMS field. MEMS: Introduction and Fundamentals comprises contributions from the foremost experts in their respective specialties from around the world. Acclaimed author and expert Mohamed Gad-el-Hak has again raised the bar to set a new standard for excellence and authority in the fledgling fields of MEMS and nanotechnology.

Thermal Energy Harvesting for Application at MEMS Scale

Thermal Energy Harvesting for Application at MEMS Scale Book
Author : Steven Percy,Chris Knight,Scott McGarry,Alex Post,Tim Moore,Kate Cavanagh
Publisher : Springer Science & Business Media
Release : 2013-10-10
ISBN : 1461492157
Language : En, Es, Fr & De

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Book Description :

This book discusses the history of thermal heat generators and focuses on the potential for these processes using micro-electrical mechanical systems (MEMS) technology for this application. The main focus is on the capture of waste thermal energy for example from industrial processes, transport systems or the human body to generate useable electrical power. A wide range of technologies is discussed, including external combustion heat cycles at MEMS ( Brayton, Stirling and Rankine), Thermoacoustic, Shape Memory Alloys (SMAs), Multiferroics, Thermionics, Pyroelectric, Seebeck, Alkali Metal Thermal, Hydride Heat Engine, Johnson Thermo Electrochemical Converters, and the Johnson Electric Heat Pipe.

The MEMS Handbook

The MEMS Handbook Book
Author : Mohamed Gad-el-Hak
Publisher : CRC Press
Release : 2001-09-27
ISBN : 9781420050905
Language : En, Es, Fr & De

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Book Description :

The revolution is well underway. Our understanding and utilization of microelectromechanical systems (MEMS) are growing at an explosive rate with a worldwide market approaching billions of dollars. In time, microdevices will fill the niches of our lives as pervasively as electronics do right now. But if these miniature devices are to fulfill their mammoth potential, today's engineers need a thorough grounding in the underlying physics, modeling techniques, fabrication methods, and materials of MEMS. The MEMS Handbook delivers all of this and more. Its team of authors-unsurpassed in their experience and standing in the scientific community- explore various aspects of MEMS: their design, fabrication, and applications as well as the physical modeling of their operations. Designed for maximum readability without compromising rigor, it provides a current and essential overview of this fledgling discipline.

Microscale Heat Transfer Fundamentals and Applications

Microscale Heat Transfer   Fundamentals and Applications Book
Author : S. Kakaç,L.L. Vasiliev,Y. Bayazitoglu,Y. Yener
Publisher : Springer Science & Business Media
Release : 2006-05-20
ISBN : 1402033613
Language : En, Es, Fr & De

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Book Description :

This volume contains an archival record of the NATO Advanced Institute on Microscale Heat Transfer – Fundamental and Applications in Biological and Microelectromechanical Systems held in Çesme – Izmir, Turkey, July 18–30, 2004. The ASIs are intended to be high-level teaching activity in scientific and technical areas of current concern. In this volume, the reader may find interesting chapters and various Microscale Heat Transfer Fundamental and Applications. The growing use of electronics, in both military and civilian applications has led to the widespread recognition for need of thermal packaging and management. The use of higher densities and frequencies in microelectronic circuits for computers are increasing day by day. They require effective cooling due to heat generated that is to be dissipated from a relatively low surface area. Hence, the development of efficient cooling techniques for integrated circuit chips is one of the important contemporary applications of Microscale Heat Transfer which has received much attention for cooling of high power electronics and applications in biomechanical and aerospace industries. Microelectromechanical systems are subject of increasing active research in a widening field of discipline. These topics and others are the main themeof this Institute.

Electrochemical Processing in ULSI and MEMS 3

Electrochemical Processing in ULSI and MEMS 3 Book
Author : John O. Dukovic
Publisher : The Electrochemical Society
Release : 2007-09
ISBN : 1566775868
Language : En, Es, Fr & De

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Book Description :

The papers in this issue describe the latest advances in fundamental and practical aspects of electrochemical processes for fabrication of microelectronic devices and related structures. Topics range from plating to etching, chips to packages, mechanisms to models, through-silicon vias to nanotubes, tin to ruthenium, capping to cooling, porous gold to porous alumina, probe-card springs to solder balls, electroless deposition to CMP, TFT-LCDs to magnetic nanowires and beyond.

Electrochemical Nanotechnologies

Electrochemical Nanotechnologies Book
Author : Tetsuya Osaka,Madhav Datta,Yosi Shacham-Diamand
Publisher : Springer Science & Business Media
Release : 2009-12-15
ISBN : 9781441914248
Language : En, Es, Fr & De

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Book Description :

In this book, the term "electrochemical nanotechnology" is defined as nanoprocessing by means of electrochemical techniques. This introductory book reviews the application of electrochemical nanotechnologies with the aim of understanding their wider applicability in evolving nanoindustries. These advances have impacted microelectronics, sensors, materials science, and corrosion science, generating new fields of research that promote interaction between biology, medicine, and microelectronics. This volume reviews nanotechnology applications in selected high technology areas with particular emphasis on advances in such areas. Chapters are classified under four different headings: Nanotechnology for energy devices - Nanotechnology for magnetic storage devices - Nanotechnology for bio-chip applications - Nanotechnology for MEMS/Packaging.

Issues in Nanotechnology and Micotechnology Engineering Fabrication and Structural Research 2011 Edition

Issues in Nanotechnology and Micotechnology  Engineering  Fabrication  and Structural Research  2011 Edition Book
Author : N.A
Publisher : ScholarlyEditions
Release : 2012-01-09
ISBN : 146496744X
Language : En, Es, Fr & De

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Book Description :

Issues in Nanotechnology and Micotechnology: Engineering, Fabrication, and Structural Research: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Nanotechnology and Micotechnology—Engineering, Fabrication, and Structural Research. The editors have built Issues in Nanotechnology and Micotechnology: Engineering, Fabrication, and Structural Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Nanotechnology and Micotechnology—Engineering, Fabrication, and Structural Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Nanotechnology and Micotechnology: Engineering, Fabrication, and Structural Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Modern Fluid Dynamics

Modern Fluid Dynamics Book
Author : Clement Kleinstreuer
Publisher : Springer Science & Business Media
Release : 2009-12-02
ISBN : 1402086709
Language : En, Es, Fr & De

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Book Description :

This textbook covers essentials of traditional and modern fluid dynamics, i. e. , the fundamentals of and basic applications in fluid mechanics and convection heat transfer with brief excursions into fluid-particle dynamics and solid mechanics. Specifically, it is suggested that the book can be used to enhance the knowledge base and skill level of engineering and physics students in macro-scale fluid mechanics (see Chaps. 1–5 and 10), followed by an int- ductory excursion into micro-scale fluid dynamics (see Chaps. 6 to 9). These ten chapters are rather self-contained, i. e. , most of the material of Chaps. 1–10 (or selectively just certain chapters) could be taught in one course, based on the students’ background. Typically, serious seniors and first-year graduate students form a receptive audience (see sample syllabus). Such as target group of students would have had prerequisites in thermodynamics, fluid mechanics and solid mechanics, where Part A would be a welcomed refresher. While introductory fluid mechanics books present the material in progressive order, i. e. , employing an inductive approach from the simple to the more difficult, the present text adopts more of a deductive approach. Indeed, understanding the derivation of the basic equations and then formulating the system-specific equations with suitable boundary conditions are two key steps for proper problem solutions.

MEMS NEMS Nano Technology

MEMS NEMS Nano Technology Book
Author : Xiao Hao Wang
Publisher : Trans Tech Publications Ltd
Release : 2011-06-30
ISBN : 3038135038
Language : En, Es, Fr & De

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Book Description :

Volume is indexed by Thomson Reuters CPCI-S (WoS). This book brings together over 153 peer-reviewed papers, grouped into 6 chapters: Micro-/Nano-Fabrication and Measurement Technologies, Micro-Sensors and Actuators, Microfluidic Devices and Systems, MEMS/NENS and Applications, Nano-Material Research / Nanotubes / Nanowire Devices, Micropower Technology, Theories in Micro-/Nano-Technologies. Most of the papers are authored by Chinese researchers, and the volume thus offers a good overview of the research on MEMS and nano-technology being conducted in China. The work will be of great interest to researchers, graduate students and engineers who are working in the fields of MEMS and nano-technology.

UK Colloids 2011

UK Colloids 2011 Book
Author : Victor Starov,Peter Griffiths
Publisher : Springer
Release : 2012-08-16
ISBN : 3642289746
Language : En, Es, Fr & De

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Book Description :

UK Colloids 2011 - the first multi-day conference on the topic of colloid science held in the UK for many years, jointly organized by the RSC Colloid and Interface Science Group and the SCI Colloid and Surface Science Group. The conference had over 250 delegates, from all across the world – good representation from Japan, China, Australia, USA, France, Germany, Holland, Sweden, Spain, Poland, Georgia – as well as a substantial number of UK based researchers. This Special Issue of “Progress in Colloid and Polymer Science” collects together a selection of 20 papers, mostly presented during the Conference. The papers included cover the wide variety of topics from fundamentals in colloid and interface science to industrial applications. The current Special Issue also reflects the international character of the Conference.

Patterning of Bi2Te3 Polycrystalline Thin Films on Silicon

Patterning of Bi2Te3 Polycrystalline Thin Films on Silicon Book
Author : N.A
Publisher :
Release : 2008
ISBN :
Language : En, Es, Fr & De

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Book Description :

Bi2Te3-based thermoelectric (TE) energy conversion devices are an attractive possibility for recovering usable energy from waste heat. The integration of TE devices on silicon substrates opens the door for new highly integrated systems where micro-electro-mechanical systems (MEMS) heat exchangers and sensor/actuator technology can be leveraged to improve conversion efficiency and system capability. One roadblock on this path is the development of reliable patterning methods for fabricating thin-film TE devices on silicon micromachined substrates. This report gives the results from investigating patterning techniques for polycrystalline Bi2Te3 films grown using molecular beam epitaxy (MBE). Lithographic patterning and both wet and dry etch techniques are discussed. Results show that the developed processes can be used to precisely pattern features smaller than 10 microns on a side and are scalable to vertical dimensions (” or>) 10 microns.

Proton Exchange Membrane Fuel Cells 6

Proton Exchange Membrane Fuel Cells 6 Book
Author : Thomas Francis Fuller
Publisher : The Electrochemical Society
Release : 2006-01-01
ISBN : 1566775019
Language : En, Es, Fr & De

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Book Description :

The symposium was devoted to all aspects of research development and engineering of proton exchange membrane fuel cells. Three subareas were covered: materials and electrode processes, fuel cell systems, and durability.

Process Intensification

Process Intensification Book
Author : David Reay,Colin Ramshaw,Adam Harvey
Publisher : Butterworth-Heinemann
Release : 2013-06-05
ISBN : 0080983057
Language : En, Es, Fr & De

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Book Description :

Process Intensification: Engineering for Efficiency, Sustainability and Flexibility is the first book to provide a practical working guide to understanding process intensification (PI) and developing successful PI solutions and applications in chemical process, civil, environmental, energy, pharmaceutical, biological, and biochemical systems. Process intensification is a chemical and process design approach that leads to substantially smaller, cleaner, safer, and more energy efficient process technology. It improves process flexibility, product quality, speed to market and inherent safety, with a reduced environmental footprint. This book represents a valuable resource for engineers working with leading-edge process technologies, and those involved research and development of chemical, process, environmental, pharmaceutical, and bioscience systems. No other reference covers both the technology and application of PI, addressing fundamentals, industry applications, and including a development and implementation guide Covers hot and high growth topics, including emission prevention, sustainable design, and pinch analysis World-class authors: Colin Ramshaw pioneered PI at ICI and is widely credited as the father of the technology