Download or read book Materials Research Society Symposium Proceedings Volume 720 Materials Issues for Tunable RF and Microwave Devices III Held in San Francisco California on April 2 3 2002 written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this symposium was to bring together researchers from a broad range of disciplines to discuss the challenges facing the implementation of an affordable tunable RF and microwave device technology. Low cost, tunable, microwave devices will have a tremendous impact on a variety of commercial and military systems, including, but not limited to, tunable band-select filters for wireless communications, phase shifters and true time delay devices for electronic scanning antennas, tunable radiating structures for frequency hopping, and tunable transformers to reduce RF impedance mismatch. The papers of this proceedings discuss a wide range of topics from materials issues through devices and even a system level demonstration of electronic beam steering. Specific materials issues discussed are: new tunable materials; issues of tunability, preparation and optimization of bulk and thin film properties; materials, surface, and interface characterization; evaluation of material loss and loss mechanisms; effects of microstructure; and temperature stability. At the device level, phase shifters are discussed and a new device concept for variable true time delay versus phase shift is introduced. At the system level, a paraelectric lens is used to demonstrate electronic beam steering of an antenna at 10 GHz with about 2 dB of loss.
Download or read book Materials Issues for Tunable RF and Microwave Devices III Volume 720 written by Steven C. Tidrow and published by . This book was released on 2002-08-09 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Challenges facing the implementation of an affordable tunable RF and microwave device technology are discussed in these papers from an April 2002 meeting. Materials issues and devices are examined, with information on new tunable materials, issues of preparation and optimization of bulk and think film properties, material and surface characterization, evaluation of material loss and loss mechanisms, and effects of microstructure. At the device level, phase shifters are discussed and a new device concept for variable true time delay versus phase shift is introduced. At the system level, a paraelectric lens is used to demonstrate electronic beam steering of an antenna. Tidrow is affiliated with the US Army Research Laboratory. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Index of Conference Proceedings written by British Library. Document Supply Centre and published by . This book was released on 2003 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials and Devices for Optoelectronics and Microphotonics written by Ralf B. Wehrspohn and published by . This book was released on 2002 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume combines the proceedings of Symposium K, Materials and Devices for Optoelectronics and Photonics, and Symposium L, Photonic Crystals--From Materials to Devices, both from the 2002 MRS Spring Meeting in San Francisco. The two symposia served as a unique meeting place where a community of materials scientists and device-oriented engineers could present their latest results. Papers from Symposium K concentrate on materials for solid-state lighting, with particular emphasis on nitrides and other high-bandgap semiconductors and quantum dots, as well as materials for optical waveguides and interconnects. Presentations from Symposium L discuss theoretical methods and materials and fabrication techniques for 2D and 3D photonic crystals, with special emphasis on tunability of photonic crystals.
Download or read book Molecularly Imprinted Materials sensors and Other Devices written by Kenneth J. Shea and published by . This book was released on 2002 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of two symposia held at the 2002 MRS Spring Meeting in San Francisco. Molecular imprinting (MI) technology has attracted much attention and enjoyed tremendous development over the past decade. MI technology enables the preparation of materials with host sites that recognize specific guest molecules, analogous to the "lock-and-key" paradigm of antibodies and enzymes. Advantages of molecularly imprinted materials include: a degree of specificity approaching that of antibodies but with much greater temporal and thermal stability; rapid development because precise molecular design and chemical synthesis are unnecessary; and wide applicability because materials may be imprinted with almost any shape-persistent analyte of interest. Papers from Symposium M, "Molecularly Imprinted Materials, focus primarily on the fabrication of functional materials and devices based on MI materials. Studies are presented not only by experts in MI, but more importantly, by materials scientists integrating molecular imprinting with cutting-edge techniques in microfabrication and nanotechnology.
Download or read book Biological and Biomimetic Materials properties to Function written by Joanna Aizenberg and published by . This book was released on 2002 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials scientists, chemists, biologists, physicists, bioengineers and clinicians join together in this volume to focus on the formation, function and structural characterization of biologically formed organic and inorganic materials. Recent developments in bioinspired materials synthesis are also featured. In all of these areas, understanding the structures and kinetics of the interfaces between crystals and other ordered or disordered molecular assemblies requires consideration of multiple chemical species, intermolecular interactions, self assembly, molecular anisotropy, and the structure of the interface between fluid and solid phases. Of particular interest are new materials engineered to replace or restore tissue functions. Topics include: materials in natural biological tissues; imaging and characterization techniques; organic biomaterials--proteins and peptides; interface engineering, patterning and biocompatibility; composite biomaterials--bones and teeth; biomaterials; tissue engineering; biomimetics, sensors and nanotechnology; and materials for drug and gene delivery.
Download or read book Perovskite Materials written by Renata M. Wentzcovitch and published by . This book was released on 2002 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perovskites form a large class of materials, deceptively simple in basic structure but immensely complex in compositional variations, symmetry changes, and physical properties. They include ferroelectrics, magnetoresistive materials, oxide ion and proton conductors, superconductors, and an abundant phase in the Earth's lower mantle. This volume brings together researchers operating in diverse areas with the common goal of understanding perovskite's intrinsic and extrinsic properties and their potential use. A recurring theme is the interplay of theory and experiment in understanding and predicting properties. Sessions on theory and modeling are featured, emphasizing phase changes and elasticity of Earth materials such as MgSiO3, and CaSiO3, and underscoring new magnetic and ferroelectric materials, including thin films and multilayers. These are complemented by experimental studies of the synthesis of new families of perovskites and property measurements. The volume shows the diversity of materials, measurements, and ideas being studied at present.
Download or read book American Book Publishing Record written by and published by . This book was released on 2003 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials Research Society Symposium Proceedings Volume 603 Materials Issues for Tunable RF and Microwave Devices Held November 30 December 2 1999 Boston Massachusetts USA written by and published by . This book was released on 1999 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains papers presented at Symposium KK, "Materials Issues for Tunable RF and Microwave Devices," held November 30-December 2 at the 1999 MRS Fall Meeting in Boston, Massachusetts. Electric or magnetic tunability of RF and microwave devices is desirable for a variety of civilian and military applications. In recent years, there have been tremendous advances in thin-film processing, in particular the metal-oxide thin films. Consequently, it has been recognized that the integration of nonlinear-dielectric, ferrite, colossal magnetoresistive (CMR), and superconductor materials could revolutionize tunable devices by providing new capabilities while significantly reducing size and cost. Some of the crucial issues facing the tunable RF and microwave device technology concern the material properties, in particular the loss in thin films of the tunable materials. Extensive efforts are being devoted to understand the tuning and loss mechanisms, improve thin-film processing and characterization, develop new materials, and design novel device concepts. The papers contained in this volume are a reflection of the work currently in progress in this exciting area. They range from electric-field to magnetic-field tuning, from devices to materials, and from fundamental understanding to materials characterization. The authors come from different materials communities: nonlinear dielectric, ferrite, colossal magnetoresistive (CMR), semiconductors, superconductivity, and device engineering, etc. We hope that this volume will serve as an up-to-date reference for the researchers inside and outside the field of tunable RF and microwave devices, and thus contribute to new breakthroughs in the basic and applied research in this rapidly expanding field.
Download or read book Microwave Processing of Materials IV written by Magdy F. Iskander and published by . This book was released on 1994 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials Research Society Symposium Proceedings Volume 623 Materials Science of Novel Oxide Based Electronics Held in San Francisco California on April 24 27 2000 written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Materials and Devices for Large area Electronics written by and published by . This book was released on 2001 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Submicron Multiphase Materials written by Roland H. Baney and published by . This book was released on 1992 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Materials Research Society Symposium Proceedings Volume 604 Materials for Smart Systems III Held November 30 December 2 1999 Boston Massachusetts USA written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents a record of the proceedings of Symposium LL, "Smart Materials," held November 30- December 2 at the 1999 MRS Fall Meeting in Boston, Massachusetts, the third symposium in the series on "Smart Materials." In addition to the conventional piezoelectric, magnetostrictive and shape memory materials, the symposium was expanded to include electro-/magnetorheological fluids and mechanochemical actuators. Seventy-one papers were presented over the course of three days. Of the fifty-one papers in this volume, twenty-one (or roughly 41%) came from outside the U.S. reported.
Download or read book Materials Research Society Symposium Proceedings Volume 582 Molecular Electronics Symposium Held November 29 December 2 1999 Boston Massachusetts U S A written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers presented at Symposium H, "Molecular Electronics," held November 29-December 2 at the 1999 MRS Fall Meeting in Boston, Massachusetts. As Si-based microelectronics marches to ever-smaller feature sizes, the point is rapidly approaching when conventional MOSFETs will no longer operate. Such devices depend on the concept of "doped regions" which can be envisioned to be ever so small until you get to the point where there is only a handful of dopant atoms. Tunneling across ultra-thin films is another major issue. Single molecules as active device elements is a concept that goes back to the 1970's, but in recent years very substantial progress has been made in synthesizing molecules suitable for such purposes. Carbon nanotubes have been a prime candidate for both nanowires and active devices. Molecules as small as single benzene rings, and larger, more complex molecules have been synthesized and measured, showing reproducible current-voltage characteristics. Unusual features are large negative differential resistance and large shifts of resonant peaks as functions of temperature.
Download or read book Materials Behavior Under Extreme Irradiation Stress Or Temperature written by A. Horsfield and published by . This book was released on 2014 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Converging Technologies for Improving Human Performance written by Mihail C. Roco and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: M. C. Roco and W.S. Bainbridge In the early decades of the 21st century, concentrated efforts can unify science based on the unity of nature, thereby advancing the combination of nanotechnology, biotechnology, information technology, and new technologies based in cognitive science. With proper attention to ethical issues and societal needs, converging in human abilities, societal technologies could achieve a tremendous improvement outcomes, the nation's productivity, and the quality of life. This is a broad, cross cutting, emerging and timely opportunity of interest to individuals, society and humanity in the long term. The phrase "convergent technologies" refers to the synergistic combination of four major "NBIC" (nano-bio-info-cogno) provinces of science and technology, each of which is currently progressing at a rapid rate: (a) nanoscience and nanotechnology; (b) biotechnology and biomedicine, including genetic engineering; (c) information technology, including advanced computing and communications; (d) cognitive science, including cognitive neuroscience. Timely and Broad Opportunity. Convergence of diverse technologies is based on material unity at the nanoscale and on technology integration from that scale.
