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丛书名： IFIP Advances in Information and Communication Technology

1000年

作者： Admela Jukan

ISBN: (数字)9780387354910

ISBN: (纸本)9780792375418;9781475768596

In these exciting times of quotidianly progressing developments in communication techniques, where more than ever in the history of a technological progress, society's reliance on communication networks for medicine, education, data transfer, commerce, and many other endeavours dominates the human's everyday life, the optical networks are certainly one of the most promising and challenging networking options. Since their commercial arrival in the nineties, they have fundamentally changed the way of dealing with traffic engineering by removing bandwidth bottlenecks and eliminating delays. Today, after the revolutionary bandwidth expansion, the networking functionality migrates more and more to the optical layer, and the need to establish fast wavelength circuits and capacity-on-demand for the higher-layer networks, in particular data networks based on Internet Protocol (IP), has become one of the central networking issues for the new century. The unifying trends toward configurable all-optical network infrastructure open up a wide range of new network engineering and design choices dealing with networks' interoperability and common platforms for control and management. The Fifth Working Conference on optical Network design and Modelling, held in the Austrian capital Vienna, February 5-7, 2001, aims at presenting the most recent progress in optical communication techniques, new technologies, standardisation process, emerging markets and carriers. A short look at the Table of Contents of this book tells us, in fact, that this year's conference program reflects the current state of the art precisely.

关键词： Signal, Image and Speech Processing Computer Communication Networks Electrical engineering Optics, Lasers, Photonics, optical Devices

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Tensor Properties of Solids 1

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丛书名： Synthesis Lectures on engineering, Science, and Technology

1000年

作者： Richard F. Tinder

ISBN: (数字)9783031793066

ISBN: (纸本)9783031793059

Tensor Properties of Solids presents the phenomenological development of solid state properties represented as matter tensors in two parts: Part I on equilibrium tensor properties and Part ii on transport tensor properties. Part I begins with an introduction to tensor notation, transformations, algebra, and calculus together with the matrix representations. Crystallography, as it relates to tensor properties of crystals, completes the background treatment. A generalized treatment of solid-state equilibrium thermodynamics leads to the systematic correlation of equilibrium tensor properties. This is followed by developments covering first-, second-, third-, and higher-order tensor effects. Included are the generalized compliance and rigidity matrices for first-order tensor properties, Maxwell relations, effect of measurement conditions, and the dependent coupled effects and use of interaction diagrams. Part I concludes with the second- and higher-order effects, including numerous optical tensor properties. Part ii presents the driving forces and fluxes for the well-known proper conductivities. An introduction to irreversible thermodynamics includes the concepts of microscopic reversibility, Onsager's reciprocity principle, entropy density production, and the proper choice of the transport parameters. This is followed by the force-flux equations for electronic charge and heat flow and the relationships between the proper conductivities and phenomenological coefficients. The thermoelectric effects in solids are discussed and extended to the piezothermoelectric and piezoresistance tensor effects. The subjects of thermomagnetic, galvanomagnetic, and thermogalvanomagnetic effects are developed together with other higher-order magnetotransport property tensors. A glossary of terms, expressions, and symbols are provided at the end of the text, and end-of-chapter problems are provided on request. Endnotes provide the necessary references for further reading. Table of Cont

关键词： engineering design Materials engineering Professional & Vocational Education

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Tensor Properties of Solids, Part Two 1

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丛书名： Synthesis Lectures on engineering, Science, and Technology

1000年

作者： Richard F. Tinder

ISBN: (数字)9783031793097

ISBN: (纸本)9783031793080

关键词： engineering design Materials engineering Professional & Vocational Education

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Nanostructured Materials and Coatings for Biomedical and Sensor Applications 1

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丛书名： NATO Science Series ii: Mathematics, Physics and Chemistry

1000年

作者： Y. G. Gogotsi Irina V. Uvarova

ISBN: (数字)9789401001571

ISBN: (纸本)9781402013201;9781402013218

This volume contains papers that were presented at the NATO Advanced Research Workshop on Nanostructured Materials and Coatings for Biomedical and Sensor Applications held in Kyiv, Ukraine, 4-8 August, 2002. A total of 104 scientists from 14 countries participated in our ARW, making it a really international event. Participants ranged from graduate students to senior researchers. They presented 16 tutorial lectures, 20 short talks and more than 70 posters. Invited speakers, from NATO and Partner countries, presented some of the most recent developments in physics, chemistry and technology of nanosized materials. A broad range of speakers having international standing and representing NATO and partner countries, as well as university, industrial and govemment research laboratories participated in this meeting and wrote papers for this volume. Foregoing ARW gathered together the scientists working in the area of nanosized materials and coatings and their applications in biomedicine and sensors. The first objective of this AR W was to discuss the current research covering a wide range of physical and chemical properties of biomaterials and their use. Active discussion of oral presentations and posters, and the round table discussion gave a good opportunity to researchers from academia and industry to discuss the achievements in this field and outline future directions in terms of technological developments and product commercialisation in the fields of biomedicine and sensors. Particularly, advanced ceramics and nanostructured carbons were covered in many presentations.

关键词： Materials Science, general Nanotechnology and Microengineering Characterization and Evaluation of Materials Biomedical engineering and Bioengineering Ceramics, Glass, Composites, Natural Materials optical and Electronic Materials

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Fuse cut-outs — Their design and application for A-C. distribution circuits

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Electrical engineering 1931年第11期50卷 903-903页

作者： E. G. Newton General Electric Co. Pittsfield Mass.

MANY NEW developments to meet modern requirements have been applied to the renewable expulsion-fuse and oil-fuse cut-outs for a-c. distribution systems of 15,000 volts and below. While there are several different types of fuse cut-outs, the universal design problem is the interruption of an arc formed when the current carrying element melts. Both expulsion-fuse and oil-fuse cut-outs depend for this interruption upon the gas pressure generated by the current in the arc.

关键词： Fuses Lightning Electron tubes Power transmission lines Fires optical fiber devices Interrupters

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Electronic Circuits 2

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1000年

作者： Ulrich Tietze Christoph Schenk Eberhard Gamm

ISBN: (数字)9783540786559

The purpose of this book is to help the reader to understand off-the-shelf circuits and to enable him to design his or her own circuitry. The book is written for students, practicing engineers and scientists. It covers all major aspects of analog and digital circuit design. The book is a translation of the current 12th edition of the German bestseller Halbleiter- Schaltungstechnik. Part I describes semiconductor devices and their behavior with respect to the models used in circuit simulation. This part introduces all major aspects of transistor level design (IC-design). Basic circuits are analyzed in ?ve steps: large-signal transfer characteristic, small-signal response, frequency response and bandwidth, noise and distortion. Digital circuits are covered starting with the internal circuitry of gates and ?ip-?ops up to the construction of combinatorial and sequential logic systems with PLDs and FPGA s. design examples and a short form guide for the digital synthesis toolispLever are included on the CD enclosed. Part ii is dedicated to board level design. The main chapters of this part describe the use of operational ampli?ers for signal conditioning including signal ampli?cation, ?ltering andAD-conversion. Further chapters cover power ampli?ers, power supplies and other important functional blocks of analog systems. The chapters are self-contained with a minimum of cross-reference. This allows the advanced reader to familiarize himself quickly with the various areas of applications. Each chapter offers a detailed overview of various solutions to a given requirement. In order to enable the reader to proceed quickly from an idea to a working circuit, we discuss only those solutions we have tested thoroughly by simulation. Many of these simulation examples are included on the CD enclosed.

关键词： Circuits and Systems Electronics and Microelectronics, Instrumentation Measurement Science and Instrumentation Microwaves, RF and optical engineering Control, Robotics, Mechatronics Computer Hardware

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The TRASER system∗, for light-coupled current measurement at EHV 2

The TRASER system∗, for light-coupled current measurement a...

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Fiber Optics ii: Applications and Technology 1970

作者： Pressman, Barry M. Power Protection and Switching Division Allis-Chalmers BostonMA United States

The TRASER system is now capable of delivering the design-goal specifications of revenue-accuracy current measurements under any ambient temperature conditions from - 70 F to + 170 F and from line-charging through full-fault current levels, with other interesting advantages, Twin channels of identical measurement, with millisecond throwover between channels, insure service availability at all times. In addition to a power supply activated by potential of the energized line, separate power sources operated by line current are provided for each channel. Full operation is accomplished within two milliseconds after closing into a short circuit, as-suringprotective relay operating during the first current loop if desired. Solid-state relay logic is highly compatible with output of solid-state 'Decoders' of the TRASER system, thus promising simplified static relay designs without input-current transformers and with more freedom from high-energy stray transients which interfere with present relay designs. EHV provides a chance for electronics to reduce costs and weights, eliminate oil, and greatly improve the protective signal accuracy. © 1970 SPIE. All rights reserved.

关键词： Electric current measurement

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Functional Smart Nanomaterials and Their Theranostics Approaches 1

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丛书名： Smart Nanomaterials Technology

1000年

作者： Alle Madhusudhan Shiv Dutt Purohit Rajendra Prasad Azamal Husen

ISBN: (数字)9789819965977

ISBN: (纸本)9789819965960;9789819965991

This book covers a number of engineered nanotheranostics platforms and nanomedicines applications of FDA-approved medicines for early-stage diagnosis and treatment of cancer. The book focuses on (i) the basic design and bioengineering of safe medicines, (ii) physicochemical understanding of surface engineered medicines and their characteristics, (iii) various examples for site-specific bioimaging and multimode therapies, (iv) stimuli-responsive approaches for targeted drug delivery applications, (v) targeted therapeutics approaches for cancer cells or solid tumor ablations, (vi) targeted mechanisms of administrative biomedicines, (vii) impact of surface modification or engineering of biomedicines for site-selective tumor binding ability, and (vii) requirements for clinical trials and FDA approval. The content of this book appeal to readers who are interested in recent developments of FDA-approved cost-effective rapid cancer imaging and therapeutic platforms.

关键词： Biotechnology Materials Science, general Biomedical engineering and Bioengineering Chemistry/Food Science, general optical and Electronic Materials

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Sensory aids for the blind: A challenging problem with lessons for the future

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Proceedings of the IEEE 1970年第12期58卷 1878-1898页

作者： P.W. Nye J.C. Bliss California Institute of Technology Pasadena CA USA Stanford Research Institute University of Stanford Stanford CA USA

The two major objectives of sensory aids for the blind are to permit access to printed matter and to permit safe travel through the environment. The difficulties of designing technological means to achieve these objectives are in many respects unrelated to the concerns of the engineering laboratory. Social, economic, political, and logistic considerations all play a role. The "blind population" in the United States includes both the totally blind and those with a wide range of visual impairment. This population totals about 400 000 people in which the aged, the multiply handicapped, and those with significant residual vision predominate. Singly handicapped, working-aged people are the initial targets of the current sensory aids. Expansion of their range of usefulness to larger fractions of the blind population is expected to come later. About 800 agencies serve the blind population in the United States, and in 1967 they were responsible for an annual expenditure of $500 million. In contrast the sensory-aids research and development budget was less than $1 million. Nevertheless, several potentially useful prototype devices have been developed and are about to be evaluated in this country; at least one is of foreign origin. But if these devices are ever to have the opportunity of reaching the blind public, then mechanisms for evaluation, field trials, manufacture, and deployment must be set up. The field of currently active sensory-aids research programs is reviewed. Several programs are concerned with increasing the convenience and accessibility of braille by the application of computer technology. Nevertheless, despite the unquestionable value of these developments, the usefulness of braille is limited by its bulk, its cost, and the transcription time. To provide direct access to printed documents several devices are being developed that transform optical images from a printed page into auditory or tactile displays requiring motivation and training for effective use

关键词： Sensory aids Costs Manufacturing design engineering Laboratories Environmental economics Logistics Aging Research and development Prototypes

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Polymers for Photonics Applications ii 1

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丛书名： Advances in Polymer Science

1000年

作者： Kwang-Sup Lee

ISBN: (数字)9783540456421

ISBN: (纸本)9783540431572;9783642077319

The future of information technology requires ultra high speed processing and large data storage capacity. Since the electronics technology using semi conduc tors and inorganic materials is about to reach its limits, much current research is focused on utilizing much faster photons than electrons, namely photonics. To achieve any significant effect on the actual use of the science of photonics, devel opments of more efficient photonics materials, better optical property evaluations, manufacture of devices for system applications, etc. are the subjects which need to be explored. In particular, the development of photonics materials stands in the forefront of research as this constitutes the most pertinent factor with regard to the development of ultra high speed and large capacity information processing. In this respect, there has been continuous research on photo responsive materials through molecular structure design and architecture and the results so far are very promising as functions and performances are beginning to realize their high expectations. The two special volumes "Polymers for Photonics Applications" give authorita tive and critical reviews on up to date activities in various fields of photonic poly mers including their promising applications. Seven articles have been contributed by internationally recognized and they deal with, polymers for second and third order nonlinear optics, quadratic parametric interactions in polymer waveguides, electroluminescent polymers as light sources, photoreflective polymers for holo graphic information storage, and highly efficient two photon absorbing organics and polymers.

关键词： Polymer Sciences Condensed Matter Physics Physical Chemistry Analytical Chemistry

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