springer berlin heidelberg springer jul 2002 (144 risultati)

Taschenbuch. Condizione: Neu. Neuware -Being the first monograph devoted to this subject, the book addresses the classification problem for semisimple Hopf algebras, a field that has attracted considerable attention in the last years. The special approach to this problem taken here is via semidirect product decompositions into Yetter-Drinfel'd Hopf algebras and group rings of cyclic groups of prime order. One of the main features of the book is a complete treatment of the structure theory for such Yetter-Drinfel'd Hopf algebras.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 168 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The monograph is concerned with the modulus of families of curves on Riemann surfaces and its applications to extremal problems for conformal, quasiconformal mappings, and the extension of the modulus onto Teichmüller spaces. The main part of the monograph deals with extremal problems for compact classes of univalent conformal and quasiconformal mappings. Many of them are grouped around two-point distortion theorems. Montel's functions and functions with fixed angular derivatives are also considered. The last portion of problems is directed to the extension of the modulus varying the complex structure of the underlying Riemann surface that sheds some new light on the metric problems of Teichmüller spaces.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 228 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -This book contains the papers presented at the second KyotoWorkshop on Digital Cities that took place in October 2001. This was the third in a series of three related confer- ces. The previous conferences were the KyotoWorkshop on Communityware and Social Interaction in 1998, and the rst KyotoWorkshop on Digital Cities, in September 1999. Together they have contributed to the advancement of the research on digital cities, one of the research topics within the emerging eld of ¿social informatics¿. Themeetingaimedatimprovingourunderstandingofthecurrentstatusandfutureof thoseclassesofsystemsthatcanbesubsumedundertheheadingofdigitalcity.Whatare feasiblemodelsfordigitalcities Whatdoexperimentswithdigitalcitiesteachus What new technologies for digital cities emerge The meeting aimed at encouraging research and practical activities in this eld, and enabled the interaction between computer sci- tists, social scientists, and enlightened practitioners, engaged with digital cities. Topics of discussion were design and analysis, theoretical perspectives on digital cities, ex- riments with digital cities and with community networks, applications of digital cities, user studies, visualization, (mobile) technologies for digital cities, social interaction and communityware, user involvement in digital cities and community networks, and or- nizational and business models for digital cities.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 416 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -With their introduction in 1995, Support Vector Machines (SVMs) marked the beginningofanewerainthelearningfromexamplesparadigm.Rootedinthe Statistical Learning Theory developed by Vladimir Vapnik at AT&T, SVMs quickly gained attention from the pattern recognition community due to a n- beroftheoreticalandcomputationalmerits.Theseinclude,forexample,th e simple geometrical interpretation of the margin, uniqueness of the solution, s- tistical robustness of the loss function, modularity of the kernel function, and over t control through the choice of a single regularization parameter. Like all really good and far reaching ideas, SVMs raised a number of - terestingproblemsforboththeoreticiansandpractitioners.Newapproachesto Statistical Learning Theory are under development and new and more e cient methods for computing SVM with a large number of examples are being studied. Being interested in the development of trainable systems ourselves, we decided to organize an international workshop as a satellite event of the 16th Inter- tional Conference on Pattern Recognition emphasizing the practical impact and relevance of SVMs for pattern recognition. By March 2002, a total of 57 full papers had been submitted from 21 co- tries.Toensurethehighqualityofworkshopandproceedings,theprogramc- mitteeselectedandaccepted30ofthemafterathoroughreviewprocess.Ofthese papers16werepresentedin4oralsessionsand14inapostersession.Thepapers span a variety of topics in pattern recognition with SVMs from computational theoriestotheirimplementations.Inadditiontotheseexcellentpresentations, there were two invited papers by Sayan Mukherjee, MIT and Yoshua Bengio, University of Montreal.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 438 pp. Englisch.

Buch. Condizione: Neu. Neuware -This book is concerned with a number of theories that can be used for describ ing and analyzing systems of interacting components in case it is desirable or necessary to regard their time-dependent behavior. Society is becoming increasingly more dependent on complex computer based systems that are composed of several components that act concurrently and interact - to synchronize and communicate with each other. The com plexity of these systems arises to a great extent from the many ways in which their components can interact. The need that these components act and in teract on time as well adds considerably to the complexity. In developing such a system, it is important to be able to acquire a better understanding of the relevant issues at the conceptual level, to describe the system in a precise way at various levels of detail, and to analyze it on the basis of the descriptions. When the early algebraic theories about processes, such as ACP [16, 17, 20], CCS [49, 50] and CSP [27, 39], were developed for that purpose, the established opinion was still that timing is a concern that can more often than not be treated independently. It is therefore not surprising that timing is deliberately ignored in those theories. They have now all been extended to deal with timing.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 312 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -WorkshopTheme The ease and speed with which business transactions can be carried out over the Web has been a key driving force in the rapid growth of electronic commerce. In addition, customer interactions, including personalized content, e-mail c- paigns, and online feedback provide new channels of communication that were not previously available or were very ine cient. The Web presents a key driving force in the rapid growth of electronic c- merceandanewchannelforcontentproviders.Knowledgeaboutthecustomeris fundamental for the establishment of viable e-commerce solutions. Rich web logs provide companies with data about their customers and prospective customers, allowing micro-segmentation and personalized interactions. Customer acqui- tion costs in the hundreds of dollars per customer are common, justifying heavy emphasis on correct targeting. Once customers are acquired, customer retention becomes the target. Retention through customer satisfaction and loyalty can be greatly improved by acquiring and exploiting knowledge about these customers and their needs. Althoughweblogsarethesourceforvaluableknowledgepatterns,oneshould keep in mind that the Web is only one of the interaction channels between a company and its customers. Data obtained from conventional channels provide invaluable knowledge on existing market segments, while mobile communication adds further customer groups. In response, companies are beginning to integrate multiple sources of data including web, wireless, call centers, and brick-a- mortar store data into a single data warehouse that provides a multifaceted view of their customers, their preferences, interests, and expectations. 184 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -'This book is primarily written for neuroscientists who will always be interested in the role of calcium in the internal neuronal environment. The objectives are well met. The authors are credible authorities in the field and are the most appropriate to discuss calcium in neuronal development.Through multiple excellent quality pictures, this book shows evidence of the potential roles of calcium in the modulation of development as well as on the determination of programmed cell death. ' Review from Doody's NotesSpringer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 108 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -The second XP Universe and rst Agile Universe brought together many p- ple interested in building software in a new way. Held in Chicago, August 4¿7, 2002 it attracted software experts, educators, and developers. Unlike most c- ferences the venue was very dynamic. Many activities were not even well de ned in advance. All discussions were encouraged to be spontaneous. Even so, there were some written words available and you are holding all of them now. We have collected as much material as possible together into this small volume. It is just the tip of the iceberg of course. A reminder to us of what we learned, the people we met, and the ideas we expressed. The conference papers, including research and experience papers, are rep- duced in these proceedings. Forty-one (41) papers were submitted. Each subm- ted paper received three reviews by program committee members. The program committee consisted of 40 members. Papers submitted by program committee members were refereed separately. This ensured that reviewers could provide an honest feedback not seen by the paper submitters. In many cases, the program committee shepherded authors to signi cantly improve their initial submission prior to completing the version contained in these proceedings. In the end, the program committee chose 25 papers for publication (60% acceptance). 312 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -RoboCup 2001, the Fifth Robot World Cup Soccer Games and Conferences, was held from August 2¿10, 2001, at the Washington State Convention and Trade Center in Seattle, USA. Like the previous international RoboCup events ¿ RoboCup 97 in Nagoya, Japan; RoboCup 98 in Paris, France; RoboCup 99 in Stockholm, Sweden; and RoboCup 2000 in Melbourne, Australia ¿ RoboCup 2001 included a symposium as well as several robotic competitions. Both parts, the symposium and the tournaments, are documented in this book. The symposium received over 80 submissions of which 18 were selected for full presentation, i. e. , a talk at the symposium and a 10-page contribution to this book, and 40 were selected as posters, i. e. , a poster presentation at the s- posium and a 6-page contribution to this book. Among the full presentations, ve were selected as nalists for the Scienti c and the Engineering Challenge Awards. These ve papers are presented separately in the second chapter of this book. The Scienti c Challenge Award went to the contribution ¿A Control Method for Humanoid Biped Walking with Limited Torque¿ by Fuminori - masaki, Ken Endo, Minoru Asada, and Hiroaki Kitano. The Engineering Ch- lenge Award was given to the paper ¿A Fast Vision System for Middle Size Robots in RoboCup¿ by M. Jamzad, B. S. Sadjad, V. S. Mirrokni, M. Kazemi, R. Ghorbani, A. Foroughnassiraei, H. Chitsaz, and A. Heydarnoori. The s- posium also featured an invited talk by Prof.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 788 pp. Englisch.

Buch. Condizione: Neu. Neuware - 1. 1 Schematic Picture of AGN Some galaxies are known to emit radiation with extremely high luminosities from a rather small volume in the ray, X-ray and UV continuum. Such active cores are the so-called Active Galactic Nuclei (AGN) and the radiation is commonly believed to be a result of gravitational energy released by matter spiraling around 9 a supermassive central black hole of about 10 M (see Fig. 1). Though the central engine which produces the enormous observed activity cannot be resolved observationally, a standard picture of an AGN has gradually emerged to explain the richness of the radiation spectra: - an accretion disk with radius from about 2 to 100 gravitational radii, R , g feeding the central black hole and emitting mainly in the UV and soft X-rays; - the broad line optically emitting clouds (BLR), which seem to be absent in 3 some sources (e. g. FRI, see hereafter) and extend up to a few 10 R from g the center.

Taschenbuch. Condizione: Neu. Neuware -Success and e ciency are the latest standards and scales of our society. Virtual surroundings and communication rooms, electronic portals and platforms are pushing us into a new world of personal and professional interaction and c- peration. The network to subdue violence is fragile and crumbly, tradition is no longer a power of our community. What of leisure time, dreams, and fantasy What of education in the family, at school and at university Travelling round the world to develop yourself ¿how man becomes man: pleading for a new determination of the idea of education ¿a mission of past centuries inadequate nowadays Regarding September 11th last year, the con icts and confrontations round the globe, and events in our direct surroundings these questions seem to be a cry at least to re ect upon what is happening around us and where we ¿all of us ¿still play an active role. An International Conference on Computers Helping People with Special Needs is like an island ¿is this a topic at all these days, is it worth disc- sing the area of ICT and the situation of people with disabilities, persons who are segregated from developing their personal and professional careers Indeed the biennial meeting has never included these actualities, but the basic idea behind ICCHP, starting in 1989, was to focus on these fringe groups and to o er a platform of exchange on all aspects of Human Computer Interaction and the usage of ICT for people with special needs.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 828 pp. Englisch.

Buch. Condizione: Neu. Neuware -Thenheintroducesveryclearlythescatteringofsoundbecauseofvorticity andgivesthemostrecentresultsonultrasoundpropagationthroughadis- dered ow. V. Ostashevpresentsgeometricalacousticsinmovingmediaand theimportantpracticalproblemofsoundpropagationinturbulence(at- sphere,ocean). A. Fabrikantexaminestheplasmähydrodynamicsanalogies includingtheresonantwave- owinteractioninshear ows,wavesofnegative VI Preface energyandover-re ectionandacousticoscillatorsin uid ows. P. J. Mor- sondescribesthedynamicsofthecontinuousspectrumwhichoccursinshear ow. Theresultsareinterpretedinthecontextofin nitedimensionalHam- toniansystemstheory. G. Chagelishvilipresentsnewlinearmechanismsof acousticwavegenerationinsmoothshear owsusinganon-modalstudy. N. Peakepresents uid¿structureinteractionsinthepresenceofmean ows, includingtheproblemsofinstabilityandcausality. Finally,W. Lauterborn presentsnonlinearacousticswithapplicationstosonoluminescenceandto acousticchaos. InthisCarg`eseSummerSchool,54studentsfrom12nations,and11l- turersfrom7nationsparticipated. Aknowledgements. TheSummerSchoolandthispublicationwouldnot havebeenpossiblewithout: ¿ nancialsupportfromtheEuropeanUnion,theCentreNationaldela RechercheScienti que,theMinist`eredesA airesEtrang`eres,theM- ist`eredel¿EducationNationale,delaRechercheetdelaTechnologieand theGroupementdeRecherche¿Turbulence¿; ¿the guidance of Elisabeth Dubois¿Violette, director of the Institut d¿EtudesScienti quesdeCarg`ese; ¿thehelpofChantalAriano,NathalieBedjai,BrigitteCassegrain,Pierre- EricGrossiandthewholeteaminpreparingandhostingofthisschool. Finally,wewishtothankthelecturersforgivingsomuchtimeinprep- ingthelecturesandwritingthemup,aswellasmakingthemselvesavailable fordiscussionsduringtheschool. 1 LeMans,Paris,Lyon YvesAur¿egan , 2 September2001 Agn`esMaurel , 1 VincentPagneux , 3 Jean-Fran¿coisPinton . 1 Laboratoired¿Acoustiquedel¿Universit¿eduMaine,UMRCNRS6613, Av. OMessiaen,72085LeMansCedex9,France 2 LaboratoireOndesetAcoustique,UMRCNRS7587, ESPCI,10rSpringer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 306 pp. Englisch.

Buch. Condizione: Neu. Neuware -This book is intended for scientists and engineers in the field of micro- and nano electro-mechanical systems (MEMS and NEMS) and introduces the development of cantilever-based sensor systems using CMOS-compatible micromachining from the design concepts and simulations to the prototype. It is also a useful resource for researchers on cantilever sensors and resonant sensors in general The reader will become familiar with the potential of the combination of two technological approaches: IC fabrication technology, notably CMOS technology, and silicon micromachining and the resulting microstructures such as cantilever beams. It was recognized early that these two technologies should be merged in order to make the microstructures smart and devise integrated microsystems with on-chip driving and signal conditioning circuitry - now known as CMOS MEMS or, with the arrival of nanostructures, CMOS NEMS. One way to achieve the merger is the post-processing micro- or nano- machining of finished CMOS wafers, some of which is described in this book. The book introduces this approach based on work carried out at the Physical Electronics Laboratory of ETH Zurich on arrays of cantilever transducers with on-chip driving and signal conditioning circuitry. These cantilevers are familiar from Scanning Probe Microscopy (SPM) and allow the sensitive detection of phys ical quantities such as forces and mass changes. The book is divided into three parts. First, general aspects of cantilever resona tors are introduced, e. g. their resonant behavior and possible driving and sensing mechanisms.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 156 pp. Englisch.

Buch. Condizione: Neu. Neuware -Today, at the beginning of the third millenium, just three cereal grains - wheat, rice and maize - dominate the world's food supply, accounting for some 75 % of all grains produced. This food 'oligoculture' poses some risks for the future of humankind. The risk of catastrophic food crop failure through insect pests or fungal diseases is ever greater as genetic diversity is reduced. The introduction of genetically modified cereals may exacerbate this situation, as different speeies will share the same genes conferring resistance to pests. The intensive cultivation practices needed to produce the required high yields of these highly developed cereals, the so-called Green Revolution, is leading to environmental degradation through denudation of the soil and pollution of the environment due to pestieide and fertilizer runoff. In addition, the undoubted benefits brought about for many by the Green Revolution, with its use of intensive agricultural practises, cannot be shared by all. Such cultivation practises are often inappropriate in the developing world where farmers simply do not have the income to purchase the required agricultural machinery, inorganic fertilizers and pestieides. Also, the environmental con ditions in much of the developing world, characterised by frequent droughts interspersed with short periods of very high rainfall, are espeeially dam aging to the large areas of unprotected soil which result from mechanised agriculture. Reliance on so few different grains for our nutrition also appears to be detri mental to our long-term health.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 292 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -In today's world, smart cards play an increasingly important role in everyday life. We encounter them as credit cards, loyalty cards, electronic purses, health cards, and as secure tokens for authentication or digital signature. Their small size and the compatibility of their form with the magnetic stripe card make them ideal carriers of personal information such as secret keys, passwords, customization profiles, and medical emergency information. This book provides a guide for the rapid development of smart card applications using Java and the OpenCard Framework. It gives you the basic information you need about smart cards and how they work. It shows in detail how to develop applications that use smart cards by guiding you through examples step by step. A smart card provided with the book will help you to quickly get some first hands-on experience.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 324 pp. Englisch.

Buch. Condizione: Neu. Neuware -In the last few years research on regional development has increased dramatically. Real-world concerns have - to a certain extent - driven this scientific concern of interest. The field has been given a big boost in particular by the process of European integration and the attempt to understand how this deeper integration will work at the regional level. This volume makes a modest attempt to reconsider the issue of regional development mainly from an European perspective and in the light of the transition of society towards a knowledge-driven economy. It originated from the Thirteenth European Advanced Studies Institute in Regional Science, held in Istanbul, July 2-8, 2000. In producing the book, as friends and colleagues, we have benefited from the possibility of exchange of ideas and experience. We have also received useful assistance from the referees who have offered observations and advice in their written reports. The soundness of their comments has contributed immensely to the quality of the volume. We should, in addition, like to acknowledge the timely manner in which contributing authors have responded to our requests, and their willingness to follow the stringent editorial guidelines.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 236 pp. Englisch.

Buch. Condizione: Neu. Neuware -In Western Civilization Mathematics and Music have a long and interesting history in common, with several interactions, traditionally associated with the name of Pythagoras but also with a significant number of other mathematicians, like Leibniz, for instance. Mathematical models can be found for almost all levels of musical activities from composition to sound production by traditional instruments or by digital means. Modern music theory has been incorporating more and more mathematical content during the last decades. This book offers a journey into recent work relating music and mathematics. It contains a large variety of articles, covering the historical aspects, the influence of logic and mathematical thought in composition, perception and understanding of music and the computational aspects of musical sound processing. The authors illustrate the rich and deep interactions that exist between Mathematics and Music.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 312 pp. Englisch.

Taschenbuch. Condizione: Neu. Neuware -Alan Robinson This set of essays pays tribute to Bob Kowalski on his 60th birthday, an anniversary which gives his friends and colleagues an excuse to celebrate his career as an original thinker, a charismatic communicator, and a forceful intellectual leader. The logic programming community hereby and herein conveys its respect and thanks to him for his pivotal role in creating and fostering the conceptual paradigm which is its raison d¿¿tre. The diversity of interests covered here reflects the variety of Bob¿s concerns. Read on. It is an intellectual feast. Before you begin, permit me to send him a brief personal, but public, message: Bob, how right you were, and how wrong I was. I should explain. When Bob arrived in Edinburgh in 1967 resolution was as yet fairly new, having taken several years to become at all widely known. Research groups to investigate various aspects of resolution sprang up at several institutions, the one organized by Bernard Meltzer at Edinburgh University being among the first. For the half-dozen years that Bob was a leading member of Bernard¿s group, I was a frequent visitor to it, and I saw a lot of him. We had many discussions about logic, computation, and language.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 696 pp. Englisch.

Buch. Condizione: Neu. Neuware -Exactly 25 years ago on a warm autumn afternoon a young ecologist walked slowly through a tiny oak wood, and perched on a log to reflect. He had measured and seemingly knew 'all' the species present - trees, mosses, mushrooms, birds and more. The research, based on this and other woods in the landscape, was the first rigorous test to see if island biogeographic theory was of use in heterogeneous land. Unexpectedly, an interior-to-edge model was found to be more useful. But on this beautiful sunny day he gazed out through the trees at the surrounding bean and maize fields. Suddenly a terrible thought hit him. The land surrounding the other woods differed slightly from this scene. Here there were two bean fields plus a maize field, meadow, hedgerow and farm road, but the other comparably sized woods studied had different mixes of these land uses. Wouldn't the surroundings seriously affect the species in the woods Had he done 'bad science' (an awful feeling for a scientist) Immediately he went to all his ecology books, searching for discussions of patchiness, mosaic pattern, interactions between ecosystems, and the like. Nothing. Surprise was a new ingredient to ponder. Then for 3 months every spare moment found him in the university library digging deeper, collecting tidbits and clues. A new feeling took over, challenge and excitement. The spatial arrangement of ecosystems and land uses is important ecologically! A giant but approachable scholarly frontier.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 384 pp. Englisch.

Buch. Condizione: Neu. Neuware -Bacillus anthracis causes anthrax in all mammals, including humans. Depending upon the route of entry of B. anthracis spores, infection can result in cutaneous lesions, which are readily treatable with antibiotics, or systemic lethal disease, which is nearly always fatal. The continuing worldwide incidence of anthrax in animal populations, the risk of human infection associated with animal outbreaks, and the threat of use of B. anthracis as a biological weapon warrant continued investigation of this organisms and its virulence mechanims. Furthermore, B. anthracis is an excellent model system for inverstigation of virulence gene expression by bacteria.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 184 pp. Englisch.

Buch. Condizione: Neu. Neuware -issues raised by quantum theory, a topic not very popular during his student days at Queen's University, Belfast. Apparently, John Bell, who had been interested in the Bohr-Einstein dialogue, always took the position of Albert Einstein on philosophical issues. He also felt that a completion of quantum mechanics using so-called 'hidden variables' would be highly desired, as it would help to regain a realistic and objective picture of the world. That way, Bell hoped one would be able to arrive at a physics where 'measurement' would not play such a central role as in the Copenhagen interpretation of quantum mechanics. Then, a most interesting sequence of events set in. In 1952, David Bohm had achieved something which had earlier been proclaimed impossible. It had been proved by John von Neumann that no hidden variable theory could agree with quantum mechanics. Bohm actually formulated such a theory, where each particle at any time has both a well-defined position and a well defined momentum. The conflict raised between von Neumann and Bohm was elegantly resolved by Bell, who showed that von Neumann's proof contained a physically unjustifiable assumption. So while John Bell had flung open the door widely for hidden variable theories, he immediately dealt them a major blow. In 1964, in his celebrated paper 'On the Einstein-Podolsky-Rosen Paradox', he showed that any hidden variable theory, which obeys Einstein's requirement of locality, i. e.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 512 pp. Englisch.

Buch. Condizione: Neu. Neuware -Inequalities play a fundamental role in Functional Analysis and it is widely recognized that finding them, especially sharp estimates, is an art. E. H. Lieb has discovered a host of inequalities that are enormously useful in mathematics as well as in physics. His results are collected in this book which should become a standard source for further research. Together with the mathematical proofs the author also presents numerous applications to the calculus of variations and to many problems of quantum physics, in particular to atomic physics.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 724 pp. Englisch.

Buch. Condizione: Neu. Neuware -Traces the quest to use nanostructured media for novel and improved optoelectronic devices. Leading experts - among them Nobel laureate Zhores Alferov - write here about the fundamental concepts behind nano-optoelectronics, the material basis, physical phenomena, device physics and systems.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 464 pp. Englisch.

Buch. Condizione: Neu. Neuware -Recent years have witnessed a rapid development of active control of various mechanical systems. With increasingly strict requirements for control speed and system performance, the unavoidable time delays in both controllers and actuators have become a serious problem. For instance, all digital controllers, analogue anti aliasing and reconstruction filters exhibit a certain time delay during operation, and the hydraulic actuators and human being interaction usually show even more significant time delays. These time delays, albeit very short in most cases, often deteriorate the control performance or even cause the instability of the system, be cause the actuators may feed energy at the moment when the system does not need it. Thus, the effect of time delays on the system performance has drawn much at tention in the design of robots, active vehicle suspensions, active tendons for tall buildings, as well as the controlled vibro-impact systems. On the other hand, the properly designed delay control may improve the performance of dynamic sys tems. For instance, the delayed state feedback has found its applications to the design of dynamic absorbers, the linearization of nonlinear systems, the control of chaotic oscillators, etc. Most controlled mechanical systems with time delays can be modeled as the dynamic systems described by a set of ordinary differential equations with time delays.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 312 pp. Englisch.

Buch. Condizione: Neu. Neuware -This book, entitled Advances in Spatial Data Handling, is a compendium of papers resulting from the International Symposium on Spatial Data Handling (SDH), held in Ottawa, Canada, July 9-12, 2002. The SDH conference series has been organised as one of the main activities of the International Geographical Union (IGU) since it was first started in Zurich in 1984. In the late 1990¿s the IGU Commission of Geographic Information Systems was discontinued and a study group was formed to succeed it in 1997. Much like the IGU Commission, the objectives of the Study Group are to create a network of people and research centres addressing geographical information science and to facilitate exchange of information. The International Symposium on Spatial Data Handling, which is the most important activity of the IGU Study Group, has, throughout its 18 year history been highly regarded as one of the most important GIS conferences in the world.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 576 pp. Englisch.

Buch. Condizione: Neu. Neuware -Since 1995, the noncontact atomic force microscope (NC-AFM) has achieved remarkable progress. Based on nanomechanical methods, the NC-AFM detects the weak attractive force between the tip of a cantilever and a sample surface. This method has the following characteristics: it has true atomic resolution; it can measure atomic force interactions, i.e. it can be used in so-called atomic force spectroscopy (AFS); it can also be used to study insulators; and it can measure mechanical responses such as elastic deformation. This is the first book that deals with all of the emerging NC-AFM issues.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 460 pp. Englisch.

Buch. Condizione: Neu. Neuware -The first edition of this book was the first to provide an integrated description of sap ascension from an anatomical and functional point of view. The second edition opens with the three-dimensional aspects of wood anatomy. The cohesion-tension theory and new evidence are introduced in response to recent controversies over the mechanism of sap ascent in plants. The physiology, anatomy and biophysics of xylem dysfunction are discussed and new insights into hydraulic architecture are reviewed with special emphasis on physiological limits on maximum transpiration and how hydraulic architecture limits gas exchange, carbon gain and growth of plants. The text concludes with a description of xylem failure and pathology. The book highlights fascinating areas of current research with the aim to stimulate more work in the future.Springer-Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 300 pp. Englisch.

Buch. Condizione: Neu. Neuware -This volume, written by a range of international experts, covers a wide range of topics involving organic fluorine compounds. Each chapter is preceded by a summary and includes extensive illustrations and references. The chapters cover atmospheric chemistry, application of 19F NMR, partition, degradation and transformation, naturally occurring organic fluorine compounds, toxicology of perfluoroalkanes and phosphorofluoridates, and application of aromatic compounds to the elucidation of the mechanism of cytochrome P450.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 372 pp. Englisch.

Buch. Condizione: Neu. Neuware -This book, entitled Mathematical Simulation in Glass Technology, is one of a series reporting on research and development activities on products and processes conducted by the Schott Group. The scientifically founded development of new products and technical pro cesses has traditionally been of vital importance to Schott and has always been performed on a scale determined by the prospects for application of our special glasses. Since the reconstruction of the Schott Glaswerke in Mainz, the scale has increased enormously. The range of expert knowledge required could never have been supplied by Schott alone. It is also a tradition in our company to cultivate collaboration with customers, universities, and research institutes. Publications in numerous technical journals, which since 1969 we have edited to a regular schedule as Forschungsberichte - 'research reports' - describe the results of these cooperations. They contain up-to-date infor mation on various topics for the expert but are not suited as survey material for those whose standpoint is more remote. This is the point where we would like to place our series, to stimulate the exchange of thoughts, so that we can consider from different points of view the possibilities offered by those incredibly versatile materials, glass and glass ceramics. We would like to share the knowledge won through our research and development at Schott in cooperation with the users of our materials with scientists and engineers, interested customers and friends, and with the employees of our firm.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 496 pp. Englisch.

Buch. Condizione: Neu. Neuware -'CNS neuroprotection' was a common subject of papers, symposia, and reviews during the previous 'decade of the brain. ' Indeed, in recent years, experimental study of putative neuroprotective agents prompted clinical trials of numerous drug candidates in acute and chronic human neurodegenerative conditions. While the outcomes of these trials have not been as successful as initially hoped, these were early explorations, and the pipeline of relevant ideas continues to grow in strength and depth. We predict that early in this new millennium, crippling disorders such as stroke and Alzheimer's disease will be treated effectively by therapeutic neuroprotective strategies. This volume of the Handbook of Experimental Pharmacology titled eNS Neuroprotection provides a pharmacological perspective on currently promis ing neuroprotective approaches, and a clinical perspective on the challenges involved in establishing the efficacy of these approaches through appropriate clinical trials. Section I, 'Mechanistic Approaches to CNS Neuroprotection,' reviews major injury mechanisms that have formed the basis for many past and present clinical trials conducted around the world. Dr. KIM and colleagues, Washington University School of Medicine, review the status of blocking excitotoxicity as an approach to CNS neuroprotection. Dr. WANG, Pfizer Global Research and Development,Ann Arbor Laboratories, outlines evidence supporting a contri bution of apoptosis to pathological neuronal or glial cell loss. Drs. BECKER and HALLENBECK, University of Washington and the National Institute on Neuro logical Diseases and Stroke, respectively, argue that inhibiting inflammatory pathways in the brain can be neuroprotective. Dr. 524 pp. Englisch.