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Performance of a MEMS Heat Exchanger for a Cryosurgical Probe

Performance of a MEMS Heat Exchanger for a Cryosurgical Probe
A Book

by Michael Joseph White

  • Publisher : Unknown Publisher
  • Release : 2008
  • Pages : 316
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Materials and Failures in MEMS and NEMS

Materials and Failures in MEMS and NEMS
A Book

by Atul Tiwari,Baldev Raj

  • Publisher : John Wiley & Sons
  • Release : 2015-09-11
  • Pages : 432
  • ISBN : 1119083877
  • Language : En, Es, Fr & De
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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.

Materials and Failures in MEMS and NEMS

Materials and Failures in MEMS and NEMS
A Book

by Atul Tiwari,Baldev Raj

  • Publisher : John Wiley & Sons
  • Release : 2015-09-11
  • Pages : 432
  • ISBN : 1119083869
  • Language : En, Es, Fr & De
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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.

Recuperative Heat Exchanger for a MEMS Cryoprobe

Recuperative Heat Exchanger for a MEMS Cryoprobe
A Book

by Michael T. Frank

  • Publisher : Unknown Publisher
  • Release : 2004
  • Pages : 168
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Advances in Artificial Intelligence, Software and Systems Engineering

Advances in Artificial Intelligence, Software and Systems Engineering
Proceedings of the AHFE 2019 International Conference on Human Factors in Artificial Intelligence and Social Computing, the AHFE International Conference on Human Factors, Software, Service and Systems Engineering, and the AHFE International Conference of Human Factors in Energy, July 24-28, 2019, Washington D.C., USA

by Tareq Ahram

  • Publisher : Springer
  • Release : 2019-06-10
  • Pages : 669
  • ISBN : 3030204545
  • Language : En, Es, Fr & De
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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.

Heat Exchangers

Heat Exchangers
Selection, Rating, and Thermal Design, Fourth Edition

by Sadik Kakaç,Hongtan Liu,Anchasa Pramuanjaroenkij

  • Publisher : CRC Press
  • Release : 2020-01-21
  • Pages : 546
  • ISBN : 0429892039
  • Language : En, Es, Fr & De
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Heat exchangers are essential in a wide range of engineering applications, including power plants, automobiles, airplanes, process and chemical industries, and heating, air-conditioning, and refrigeration systems. Revised and fully updated with new problem sets, Heat Exchangers: Selection, Rating, and Thermal Design, Fourth Edition presents a systematic treatment of heat exchangers, focusing on selection, thermal-hydraulic design, and rating. Topics discussed include Classification of heat exchangers Basic design methods of heat exchangers for sizing and rating problems Single-phase forced convection correlations for heat exchangers Pressure drop and pumping power for heat exchangers and piping circuits Design methods of heat exchangers subject to fouling Thermal design methods and processes for double-pipe, shell-and-tube, gasketed-plate, compact, and polymer heat exchangers Two-phase convection correlations for heat exchangers Thermal design of condensers and evaporators Micro/nanoheat transfer The Fourth Edition contains updated information about microscale heat exchangers and the enhancement heat transfer for applications to heat exchanger design and experiment with nanofluids. The Fourth Edition is designed for courses/modules in process heat transfer, thermal systems design, and heat exchanger technology. This text includes full coverage of all widely used heat exchanger types. A complete solutions manual and figure slides of the text’s illustrations are available for qualified adopting instructors.

Neural Networks and Micromechanics

Neural Networks and Micromechanics
A Book

by Ernst Kussul,Tatiana Baidyk,Donald C. Wunsch

  • Publisher : Springer Science & Business Media
  • Release : 2009-12-01
  • Pages : 221
  • ISBN : 9783642025358
  • Language : En, Es, Fr & De
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Micromechanical manufacturing based on microequipment creates new possibi- ties in goods production. If microequipment sizes are comparable to the sizes of the microdevices to be produced, it is possible to decrease the cost of production drastically. The main components of the production cost - material, energy, space consumption, equipment, and maintenance - decrease with the scaling down of equipment sizes. To obtain really inexpensive production, labor costs must be reduced to almost zero. For this purpose, fully automated microfactories will be developed. To create fully automated microfactories, we propose using arti?cial neural networks having different structures. The simplest perceptron-like neural network can be used at the lowest levels of microfactory control systems. Adaptive Critic Design, based on neural network models of the microfactory objects, can be used for manufacturing process optimization, while associative-projective neural n- works and networks like ART could be used for the highest levels of control systems. We have examined the performance of different neural networks in traditional image recognition tasks and in problems that appear in micromechanical manufacturing. We and our colleagues also have developed an approach to mic- equipment creation in the form of sequential generations. Each subsequent gene- tion must be of a smaller size than the previous ones and must be made by previous generations. Prototypes of ?rst-generation microequipment have been developed and assessed.

MEMS and Microstructures in Aerospace Applications

MEMS and Microstructures in Aerospace Applications
A Book

by Robert Osiander,M. Ann Garrison Darrin,John L. Champion

  • Publisher : CRC Press
  • Release : 2018-10-03
  • Pages : 400
  • ISBN : 1420027743
  • Language : En, Es, Fr & De
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The promise of MEMS for aerospace applications has been germinating for years, and current advances bring the field to the very cusp of fruition. Reliability is chief among the challenges limiting the deployment of MEMS technologies in space, as the requirement of zero failure during the mission is quite stringent for this burgeoning field. MEMS and Microstructures in Aerospace Applications provides all the necessary tools to overcome these obstacles and take MEMS from the lab bench to beyond the exosphere. The book begins with an overview of MEMS development and provides several demonstrations of past and current examples of MEMS in space. From this platform, the discussion builds to fabrication technologies; the effect of space environmental factors on MEMS devices; and micro technologies for space systems, instrumentation, communications, thermal control, guidance navigation and control, and propulsion. Subsequent chapters explore factors common to all of the described systems, such as MEMS packaging, handling and contamination control, material selection for specific applications, reliability practices for design and application, and assurance practices. Edited and contributed by an outstanding team of leading experts from industry, academia, and national laboratories, MEMS and Microstructures in Aerospace Applications illuminates the path toward qualifying and integrating MEMS devices and instruments into future space missions and developing innovative satellite systems.

MEMS

MEMS
Introduction and Fundamentals

by Mohamed Gad-el-Hak

  • Publisher : CRC Press
  • Release : 2005-11-29
  • Pages : 488
  • ISBN : 1420036572
  • Language : En, Es, Fr & De
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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.

Microelectromechanical Systems

Microelectromechanical Systems
(MEMS)

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2007
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Electrochemical Micromachining for Nanofabrication, MEMS and Nanotechnology

Electrochemical Micromachining for Nanofabrication, MEMS and Nanotechnology
A Book

by Bijoy Bhattacharyya

  • Publisher : William Andrew
  • Release : 2015-04-10
  • Pages : 296
  • ISBN : 032335288X
  • Language : En, Es, Fr & De
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Electrochemical Micromachining for Nanofabrication, MEMS and Nanotechnology is the first book solely dedicated to electrochemical micromachining (EMM). It begins with fundamentals, techniques, processes, and conditions, continuing with in-depth discussions of mechanisms of material removal, including an empirical model on the material removal rate for EMM (supported by experimental validation). The book moves next to construction-related features of EMM setup suitable for industrial micromachining applications, varying types of EMM, and the latest developments in the improvement of EMM setup. Further, it covers power supply, roll of electrolyte, and other major factors influencing EMM processes, and reports research findings concerning the improvement of machining accuracy and efficiency. Finally, the book devotes a chapter to the design and development of micro-tools, one of the most vital components in EMM. Covers the generation of micro features used for advanced engineering of materials for fabrication of MEMS, microsystems and other micro-engineering applications Explores the trend of decreasing size of fabricated devices, reflected in coverage of generation of high-precision nano-features on metal and semiconductors utilizing SPM, STM, and AFM, and nanotechnology aspects of EMM Describes nanofabrication utilizing anodic dissolutions for mass manufacturing by overcoming obstacles utilizing electrochemical microsystem technology (EMST) and electrochemical nanotechnology (ENT)

Uninhabited Air Vehicles

Uninhabited Air Vehicles
Enabling Science for Military Systems

by National Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,National Materials Advisory Board,Commission on Engineering and Technical Systems,Committee on Materials, Structures, and Aeronautics for Advanced Uninhabited Air Vehicles

  • Publisher : National Academies Press
  • Release : 2000-06-28
  • Pages : 124
  • ISBN : 9780309171779
  • Language : En, Es, Fr & De
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U.S. Air Force (USAF) planners have envisioned that uninhabited air vehicles (UAVs), working in concert with inhabited vehicles, will become an integral part of the future force structure. Current plans are based on the premise that UAVs have the potential to augment, or even replace, inhabited aircraft in a variety of missions. However, UAV technologies must be better understood before they will be accepted as an alternative to inhabited aircraft on the battlefield. The U.S. Air Force Office of Scientific Research (AFOSR) requested that the National Research Council, through the National Materials Advisory Board and the Aeronautics and Space Engineering Board, identify long-term research opportunities for supporting the development of technologies for UAVs. The objectives of the study were to identify technological developments that would improve the performance and reliability of “generation-after-next†UAVs at lower cost and to recommend areas of fundamental research in materials, structures, and aeronautical technologies. The study focused on innovations in technology that would “leapfrog†current technology development and would be ready for scaling-up in the post-2010 time frame (i.e., ready for use on aircraft by 2025).

Multi-Wafer Rotating MEMS Machines

Multi-Wafer Rotating MEMS Machines
Turbines, Generators, and Engines

by Jeffrey Lang

  • Publisher : Springer Science & Business Media
  • Release : 2009-09-18
  • Pages : 456
  • ISBN : 9780387777474
  • Language : En, Es, Fr & De
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The collaboration and research that was developed to produce the MIT Gas Turbine Engine are described in this book. Both the engine and generator are fabricated from silicon using a combination of bulk and surface microfabrication technologies. The book discusses the technical details that have gone into producing the engine and the overall systems-level tradeoffs, in particular its motor compressors and turbine generators, and the decisions that have been made.

Thermal Energy Harvesting for Application at MEMS Scale

Thermal Energy Harvesting for Application at MEMS Scale
A Book

by Steven Percy,Chris Knight,Scott McGarry,Alex Post,Tim Moore,Kate Cavanagh

  • Publisher : Springer Science & Business Media
  • Release : 2013-10-10
  • Pages : 71
  • ISBN : 1461492157
  • Language : En, Es, Fr & De
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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.

Integrated Chemical Fuel Microprocessor for Power Generation in MEMS Applications

Integrated Chemical Fuel Microprocessor for Power Generation in MEMS Applications
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2005
  • Pages : 40
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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This document reports results obtained via Integrated Chemical Fuel Microprocessor for Power Generation in MEMS Applications" during the performance period, 1 September 1999 - 31 March 2004. The overall goal of this program was to demonstrate a chemical fuel processing microsystem for power generation in MEMS applications. The program had several major accomplishments: 1. Development and fabrication of a new, thermally efficient, suspended tube MEMS heat exchanger/fuel processor. 2. Design and fabrication of a thermoelectric (TE) MEMS device for direct conversion of catalytic combustion energy into electrical power. 3. Demonstration of integration of the suspended tube MEMS heat exchanger/fuel processor and GaSb solar cell into the first MEMS based thermophotovoltaic (TPV) system with net energy output. 4. Development of MEMS devices for hydrogen purification, such as removing unreacted fuels. 5. Evaluation of system performance for different fuels and configurations. 6. Exploration of microfabricated entrainment based pumps as potential options for air injection in microburner systems.

Electromagnetic Fluctuations at the Nanoscale

Electromagnetic Fluctuations at the Nanoscale
Theory and Applications

by Aleksandr I. Volokitin,Bo N.J. Persson

  • Publisher : Springer
  • Release : 2017-06-09
  • Pages : 425
  • ISBN : 3662534746
  • Language : En, Es, Fr & De
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This book provides a general formalism for the calculation of the spectral correlation function for the fluctuating electromagnetic field. The procedure is applied to the radiative heat transfer and the van der Waals friction using both the semi-classical theory of the fluctuating electromagnetic field and quantum field theory. Applications of the radiative heat transfer and non-contact friction to scanning probe spectroscopy are presented. The theory gives a tentative explanation for the experimental non-contact friction data. The book explains that radiative heat transfer and the van der Waals friction are largely enhanced at short separations between the bodies due to the evanescent electromagnetic waves. Particular strong enhancement occurs if the surfaces of the bodies can support localized surface modes like surface plasmons, surface polaritons or adsorbate vibrational modes. An electromagnetic field outside a moving body can also be created by static charges which are always present on the surface of the body due to inhomogeneities, or due to a bias voltage. This electromagnetic field produces electrostatic friction which can be significantly enhanced if on the surface of the body there is a 2D electron or hole system or an incommensurate adsorbed layer of ions exhibiting acoustic vibrations.

Particles Separation in Microfluidic Devices

Particles Separation in Microfluidic Devices
A Book

by Takasi Nisisako ,Naotomo Tottori

  • Publisher : MDPI
  • Release : 2020-12-10
  • Pages : 230
  • ISBN : 3039366947
  • Language : En, Es, Fr & De
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Microfluidic platforms are increasingly being used for separating a wide variety of particles based on their physical and chemical properties. In the past two decades, many practical applications have been found in chemical and biological sciences, including single cell analysis, clinical diagnostics, regenerative medicine, nanomaterials synthesis, environmental monitoring, etc. In this Special Issue, we invited contributions to report state-of-the art developments in the fields of micro- and nanofluidic separation, fractionation, sorting, and purification of all classes of particles, including, but not limited to, active devices using electric, magnetic, optical, and acoustic forces; passive devices using geometries and hydrodynamic effects at the micro/nanoscale; confined and open platforms; label-based and label-free technology; and separation of bioparticles (including blood cells), circulating tumor cells, live/dead cells, exosomes, DNA, and non-bioparticles, including polymeric or inorganic micro- and nanoparticles, droplets, bubbles, etc. Practical devices that demonstrate capabilities to solve real-world problems were of particular interest.

Advances in New Heat Transfer Fluids

Advances in New Heat Transfer Fluids
From Numerical to Experimental Techniques

by Alina Adriana Minea

  • Publisher : CRC Press
  • Release : 2017-03-16
  • Pages : 532
  • ISBN : 1315351226
  • Language : En, Es, Fr & De
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Heat transfer enhancement has seen rapid development and widespread use in both conventional and emerging technologies. Improvement of heat transfer fluids requires a balance between experimental and numerical work in nanofluids and new refrigerants. Recognizing the uncertainties in development of new heat transfer fluids, Advances in New Heat Transfer Fluids: From Numerical to Experimental Techniques contains both theoretical and practical coverage.

Nano-Bio- Electronic, Photonic and MEMS Packaging

Nano-Bio- Electronic, Photonic and MEMS Packaging
A Book

by C.P. Wong,Kyoung-Sik Moon,Yi (Grace) Li

  • Publisher : Springer Science & Business Media
  • Release : 2009-12-23
  • Pages : 761
  • ISBN : 9781441900401
  • Language : En, Es, Fr & De
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Nanotechnologies are being applied to the biotechnology area, especially in the area of nano material synthesis. Until recently, there has been little research into how to implement nano/bio materials into the device level. “Nano and Bio Electronics Packaging” discusses how nanofabrication techniques can be used to customize packaging for nano devices with applications to biological and biomedical research and products. Covering such topics as nano bio sensing electronics, bio device packaging, NEMs for Bio Devices and much more.

Microfabrication and Precision Engineering

Microfabrication and Precision Engineering
Research and Development

by J Paulo Davim

  • Publisher : Woodhead Publishing
  • Release : 2017-01-15
  • Pages : 286
  • ISBN : 0857094866
  • Language : En, Es, Fr & De
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Microfabrication and precision engineering is an increasingly important area relating to metallic, polymers, ceramics, composites, biomaterials and complex materials. Micro-electro-mechanical-systems (MEMS) emphasize miniaturization in both electronic and mechanical components. Microsystem products may be classified by application, and have been applied to a variety of fields, including medical, automotive, aerospace and alternative energy. Microsystems technology refers to the products as well as the fabrication technologies used in production. With detailed information on modelling of micro and nano-scale cutting, as well as innovative machining strategies involved in microelectrochemical applications, microchannel fabrication, as well as underwater pulsed Laser beam cutting, among other techniques, Microfabrication and Precision Engineering is a valuable reference for students, researchers and professionals in the microfabrication and precision engineering fields. Contains contributions by top industry experts Includes the latest techniques and strategies Special emphasis given to state-of-the art research and development in microfabrication and precision engineering