Finite Element Analysis of Beam-to-Beam Contact
  • Language: en
  • Pages: 175

Finite Element Analysis of Beam-to-Beam Contact

Phenomena occurring during a contact of two bodies are encountered in everyday life. In reality almost every type of motion is related to frictional contact between a moving body and a ground. Moreover, modeling of simple and more complex processes as nailing, cutting, vacuum pressing, movement of machines and their elements, rolling or, finally, a numerical simulation of car crash tests, requires taking contact into account. Therefore, its analysis has been a subject of many research efforts for a long time now. However, it is author’s opinion that there are relatively few efforts related to contact between structural elements, like beams, plates or shells. The purpose of this work is to ...

Recent Advances in Contact Mechanics
  • Language: en
  • Pages: 422

Recent Advances in Contact Mechanics

Contact mechanics is an active research area with deep theoretical and numerical roots. The links between nonsmooth analysis and optimization with mechanics have been investigated intensively during the last decades, especially in Europe. The study of complementarity problems, variational -, quasivariational- and hemivariational inequalities arising in contact mechanics and beyond is a hot topic for interdisciplinary research and cooperation. The needs of industry for robust solution algorithms suitable for large scale applications and the regular updates of the respective elements in major commercial computational mechanics codes, demonstrate that this interaction is not restricted to the academic environment. The contributions of this book have been selected from the participants of the CMIS 2009 international conference which took place in Crete and continued a successful series of specialized contact mechanics conferences.

Modelling of Interface Carrier Transport for Device Simulation
  • Language: en
  • Pages: 221

Modelling of Interface Carrier Transport for Device Simulation

The book contains a comprehensive review of the physics, modelling and simulation of electron transport at interfaces in semiconductor devices. Particular emphasis is put on the consistent derivation of interface or boundary conditions for semiconductor device simulation. It combines a review of existing interface charge transport models with original developments. A unified representation of charge transport at semiconductor interfaces is introduced. Models for the most important interfaces are derived, classified within the unique modelling framework, and discussed in the context of device simulation. Discretization methods for numerical solution techniques are presented.

Thermal Contact Conductance
  • Language: en
  • Pages: 260

Thermal Contact Conductance

The work covers both theoretical and practical aspects of thermal contact conductance. The theoretical discussion focuses on heat transfer through spots, joints, and surfaces, as well as the role of interstitial materials (both planned and inadvertent). The practical discussion includes formulae and data that can be used in designing heat-transfer equipment for a variety of joints, including special geometries and configurations. All of the material has been updated to reflect the latest advances in the field.

Proceedings of the Twenty-sixth State-of-the-Art Program on Compound Semiconductors (SOTAPOCS XXVI)
  • Language: en
  • Pages: 322

Proceedings of the Twenty-sixth State-of-the-Art Program on Compound Semiconductors (SOTAPOCS XXVI)

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Handbook of Optical Microcavities
  • Language: en
  • Pages: 526

Handbook of Optical Microcavities

  • Type: Book
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  • Published: 2014-10-06
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  • Publisher: CRC Press

An optical cavity confines light within its structure and constitutes an integral part of a laser device. Unlike traditional gas lasers, semiconductor lasers are invariably much smaller in dimensions, making optical confinement more critical than ever. In this book, modern methods that control and manipulate light at the micrometer and nanometer scales by using a variety of cavity geometries and demonstrate optical resonance from ultra-violet (UV) to infra-red (IR) bands across multiple material platforms are explored. The book has a comprehensive collection of chapters that cover a wide range of topics pertaining to resonance in optical cavities and are contributed by leading researchers in the field. The topics include theory, design, simulation, fabrication, and characterization of micrometer- and nanometer-scale structures and devices that support cavity resonance via various mechanisms such as Fabry–Pérot, whispering gallery, photonic bandgap, and plasmonic modes. The chapters discuss optical cavities that resonate from UV to IR wavelengths and are based on prominent III-V material systems, including Al, In, and Ga nitrides, ZnO, and GaAs.

Thermal Management for LED Applications
  • Language: en
  • Pages: 551

Thermal Management for LED Applications

Thermal Management for LED Applications provides state-of-the-art information on recent developments in thermal management as it relates to LEDs and LED-based systems and their applications. Coverage begins with an overview of the basics of thermal management including thermal design for LEDs, thermal characterization and testing of LEDs, and issues related to failure mechanisms and reliability and performance in harsh environments. Advances and recent developments in thermal management round out the book with discussions on advances in TIMs (thermal interface materials) for LED applications, advances in forced convection cooling of LEDs, and advances in heat sinks for LED assemblies.

Fundamentals Of Solar Cells
  • Language: en
  • Pages: 580

Fundamentals Of Solar Cells

  • Type: Book
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  • Published: 2012-12-02
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  • Publisher: Elsevier

Fundamentals of Solar Cells: Photovoltaic Solar Energy Conversion provides an introduction to the fundamental physical principles of solar cells. It aims to promote the expansion of solar photovoltaics from relatively small and specialized use to a large-scale contribution to energy supply. The book begins with a review of basic concepts such as the source of energy, the role of photovoltaic conversion, the development of photovoltaic cells, and sequence of phenomena involved in solar power generation. This is followed by separate chapters on each of the processes that take place in solar cell. These include solar input; properties of semiconductors; recombination and the flow of photogenera...

Silicon Quantum Integrated Circuits
  • Language: en
  • Pages: 364

Silicon Quantum Integrated Circuits

Quantum size effects are becoming increasingly important in microelectronics, as the dimensions of the structures shrink laterally towards 100 nm and vertically towards 10 nm. Advanced device concepts will exploit these effects for integrated circuits with novel or improved properties. Keeping in mind the trend towards systems on chip, this book deals with silicon-based quantum devices and focuses on room-temperature operation. The basic physical principles, materials, technological aspects, and fundamental device operation are discussed in an interdisciplinary manner. It is shown that silicon-germanium (SiGe) heterostructure devices will play a key role in realizing silicon-based quantum electronics.

The Emperor's Giraffe and Other Stories of Cultures in Contact
  • Language: en
  • Pages: 223

The Emperor's Giraffe and Other Stories of Cultures in Contact

Details the ways small decisions made during the intitial contact period of two cultures affect the course of history