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Showing 60,801 through 60,825 of 74,209 results

Radiale Kreiselpumpen

by Wolfgang Wesche

Die Berechnung und Konstruktion der hydrodynamischen Komponenten von radialen Kreiselpumpen steht im Mittelpunkt dieses Buchs. Dabei konzentriert sich der Autor auf die Kernthemen der Pumpenhydrodynamik, geht aber auch auf das Regelverhalten verschiedener Pumpentypen ein. Er behandelt das Betriebsverhalten von Pumpen im Turbinenbetrieb und deren Unterschiede zu "echten" Turbinen. Beispiele erleichtern den Einstieg in die Entwurfsarbeit. Das praxisorientierte Buch eignet sich sowohl für die Praxis in der Industrie als auch für das Studium.

Entanglement Between Noncomplementary Parts of Many-Body Systems

by Hannu Christian Wichterich

This thesis investigates the structure and behaviour of entanglement, the purely quantum mechanical part of correlations, in many-body systems, employing both numerical and analytical techniques at the interface of condensed matter theory and quantum information theory. Entanglement can be seen as a precious resource which, for example, enables the noiseless and instant transmission of quantum information, provided the communicating parties share a sufficient "amount" of it. Furthermore, measures of entanglement of a quantum mechanical state are perceived as useful probes of collective properties of many-body systems. For instance, certain measures are capable of detecting and classifying ground-state phases and, particularly, transition (or critical) points separating such phases. Chapters 2 and 3 focus on entanglement in many-body systems and its use as a potential resource for communication protocols. They address the questions of how a substantial amount of entanglement can be established between distant subsystems, and how efficiently this entanglement could be "harvested" by way of measurements. The subsequent chapters 4 and 5 are devoted to universality of entanglement between large collections of particles undergoing a quantum phase transition, where, despite the enormous complexity of these systems, collective properties including entanglement no longer depend crucially on the microscopic details.

Groundwater in the Arab Middle East

by Wolfgang Wagner

The book gives an outline of prevailing hydrogeologic conditions in the Arab Middle East together with the geologic background. Emphasis is given to relationships between the main features influencing the hydrogeologic conditions - regional geologic developments, paleogeographic conditions, morphology, climate and paleo-climate - and the resulting hydrogeologic features: formation of aquifers, distribution of major aquifers, main groundwater flow systems, occurrence of renewable and fossil groundwater. Reported data on hydraulic aquifer parameters, recharge rates and groundwater flow volumes are evaluated with a view to arrive at characteristic values under the specific hydrogeologic and climatic conditions. The area considered covers approximately the Arabian Plate. Information on the following countries is included: Bahrain, Iraq, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates, West Bank and Gaza, Yemen.

Recycling of Biomass Ashes

by Heribert Insam Brigitte A. Knapp

The use of renewable bioenergy is increasing, and so is the production of associated wastes: biomass ashes. This book presents eleven chapters on the options for recycling such biomass ashes, ranging from their use as fertilizer in agriculture and forestry to their application as a supplement for the production of cement-based materials or bricks. The book also examines the pros and cons for each of the different uses of biomass ashes.

Challenges and Opportunities in Agrometeorology

by M.V.K. Sivakumar L. S. Rathore S. D. Attri S. K. Dash

The global food security and sustainable agriculture are the key challenges before the scientific community in the present era of enhanced climate variability, rapidly rising population and dwindling resources. No part of the world is immune from meteorological extremes of one sort or another posing threat to the food security. Agrometeorology has to make most efficient use of the opportunities available in achieving the objectives of enhancing productivity and maintenance of sustainability. Increased awareness and technological advancement have provided opportunities to develop efficient agrometeorological services that can help cope with risks. These include improvements in weather forecasting, better understanding of the monsoon variability and crop-weather relationships, advances in operational agrometeorology and agrometeorological information systems, adaptation strategies to climate change and improved risk evaluation and management. This book based on an International Workshop held in New Delhi, India should be of interest to all organizations and agencies interested in agrometeorological applications.

Wiederverkaufskultur im Internet

by Siegfried Behrendt Jens Clausen Birgit Blättel-Mink

Mit Blick auf einen nachhaltigen Konsum eröffnen elektronische Handelsplattformen neue Spielräume. In dem Band werden die Ergebnisse einer empirischen Studie vorgestellt, für die das Kauf- und Verkaufsverhalten, die Motivationen sowie die mit dem Online-Handel verbundenen Umweltauswirkungen erhoben wurden. Am Beispiel von eBay zeigt die Untersuchung erstmals in sehr umfassender Weise das ökologische Potenzial des Online-Handels mit Gebrauchtgütern. Es liegt im Wesentlichen darin, die Lebens- und Nutzungsphase von Produkten zu verlängern.

Reinraumtechnik

by Hans-Peter Hortig Lothar Gail Udo Gommel

Der Band bietet eine fundierte Darstellung der Reinraumtechnik als branchenübergreifende Disziplin. Dabei verknüpfen die Autoren die Grundlagen der Reinraumtechnik mit deren Anwendungen und mit einer Anleitung zum selbständigen Erarbeiten von Problemlösungen. Für die 3. Auflage wurden Ergebnisse der nationalen und internationalen Reinraumkongresse ebenso berücksichtigt wie neue Regulierungen der Pharmazie, aktuelle Richtlinien und Anwendungen. Die Themen Hygienetechnik und Reinstwassertechnologie werden jetzt ausführlicher behandelt.

Autonomous Cooperation and Control in Logistics: Contributions and Limitations - Theoretical and Practical Perspectives

by Michael Hülsmann Bernd Scholz-Reiter Katja Windt

Many new technologies - like RFID, GPS, and sensor networks - that dominate innovative developments in logistics are based on the idea of autonomous cooperation and control. This self-organisational concept describes "...processes of decentralized decision-making in heterarchical structures. It presumes interacting elements in non-deterministic systems, which possess the capability and possibility to render decisions. The objective of autonomous cooperation and control is the achievement of increased robustness and positive emergence of the total system due to distributed and flexible coping with dynamics and complexity" (Hülsmann & Windt, 2007). In order to underlie these technology-driven developments with a fundamental theoretical foundation this edited volume asks for contributions and limitations of applying the principles of autonomous cooperation and control to logistics processes and systems. It intends to identify, describe, and explain - in the context of production and distribution logistics - the effects on performance and robustness, the enablers and impediments for the feasibility, the essential cause-effect-relations, etc. of concepts, methods, technologies, and routines of autonomous cooperation and control in logistics. Therefore, the analyses collected in this edited volume aim to develop a framework for finding the optimal degree as well as the upper and lower boundaries of autonomous cooperation and control of logistics processes from the different perspectives of production technology, electronics and communication engineering, informatics and mathematics, as well as management sciences and economics.

Introduction to Microsystem Design

by Werner Karl Schomburg

This book systematically describes the design options for micro systems as well as the equations needed for calculating the behavior of their basic elements. The fundamental equations needed to calculate the effects and forces that are important in micro systems are also provided. Readers do not require previous knowledge of fabrication processes. This second edition of the volume is a thoroughly revised and extended update. The target audience primarily comprises experts in the field of micro systems and the book is also suitable for graduate engineering students. For quick reference, equations are presented in tables that can be found in an index at the end of the book.

Advanced Rubber Composites (Advances in Polymer Science #239)

by Gert Heinrich

Morphology-Property Relationship in Rubber-Based Nanocomposites: Some Recent Developments, by A. K. Bhowmick, M. Bhattacharya, S. Mitra, K. Dinesh Kumar, P. K. Maji, A. Choudhury, J. J. George and G. C. Basak; * Rubber-Clay Nanocomposites: Some Recent Results, by Amit Das, De-Yi Wang, Klaus Werner Stöckelhuber, René Jurk, Juliane Fritzsche, Manfred Klüppel and Gert Heinrich; * Surface Modification of Fillers and Curatives by Plasma Polymerization for Enhanced Performance of Single Rubbers and Dissimilar Rubber/Rubber Blends, by J. W. M. Noordermeer, R. N. Datta, W. K. Dierkes, R. Guo, T. Mathew, A. G. Talma, M. Tiwari and W. van Ooij; * Recent Developments on Thermoplastic Elastomers by Dynamic Vulcanization, by R. Rajesh Babu and Kinsuk Naskar; * PTFE-Based Rubber Composites for Tribological Applications, by M. S. Khan and G. Heinrich

CO2: Ganzheitliche Bewertung im Bereich von Energiewirtschaft und Industrie

by Manfred Fischedick Klaus Görner Margit Thomeczek

Ausgehend von den naturwissenschaftlichen und technischen Grundlagen werden in dem Band Technologien zur Abscheidung, Speicherung und Nutzung von klimasch#65533;dlichem CO2 vorgestellt. Der Stand der Technik wird dargelegt, die Energiebilanzen verschiedener Techniken verglichen, rechtliche, wirtschaftliche und gesellschaftspolitische Aspekte beschrieben und dar#65533;ber hinaus die Standpunkte der verschiedenen Interessengruppen vorgestellt. Um sachlich informieren zu k#65533;nnen, legen die Autoren die Kriterien f#65533;r die Bewertung der einzelnen Sichtweisen offen.

The Pi-Theorem

by L. P. Yarin

This volume presents applications of the Pi-Theorem to fluid mechanics and heat and mass transfer. The Pi-theorem yields a physical motivation behind many flow processes and therefore it constitutes a valuable tool for the intelligent planning of experiments in fluids. After a short introduction to the underlying differential equations and their treatments, the author presents many novel approaches how to use the Pi-theorem to understand fluid mechanical issues. The book is a great value to the fluid mechanics community, as it cuts across many subdisciplines of experimental fluid mechanics.

Statistical Pronunciation Modeling for Non-Native Speech Processing

by Wolfgang Minker Rainer E. Gruhn Satoshi Nakamura

In this work, the authors present a fully statistical approach to model non--native speakers' pronunciation. Second-language speakers pronounce words in multiple different ways compared to the native speakers. Those deviations, may it be phoneme substitutions, deletions or insertions, can be modelled automatically with the new method presented here. The methods is based on a discrete hidden Markov model as a word pronunciation model, initialized on a standard pronunciation dictionary. The implementation and functionality of the methodology has been proven and verified with a test set of non-native English in the regarding accent. The book is written for researchers with a professional interest in phonetics and automatic speech and speaker recognition.

Random Walks and Diffusions on Graphs and Databases

by Dimitri Volchenkov Philipp Blanchard

Most networks and databases that humans have to deal with contain large, albeit finite number of units. Their structure, for maintaining functional consistency of the components, is essentially not random and calls for a precise quantitative description of relations between nodes (or data units) and all network components. This book is an introduction, for both graduate students and newcomers to the field, to the theory of graphs and random walks on such graphs. The methods based on random walks and diffusions for exploring the structure of finite connected graphs and databases are reviewed (Markov chain analysis). This provides the necessary basis for consistently discussing a number of applications such diverse as electric resistance networks, estimation of land prices, urban planning, linguistic databases, music, and gene expression regulatory networks.

Optimal Time-Domain Noise Reduction Filters

by Jacob Benesty Jingdong Chen

Additive noise is ubiquitous in acoustics environments and can affect the intelligibility and quality of speech signals. Therefore, a so-called noise reduction algorithm is required to mitigate the effect of the noise that is picked up by the microphones. This work proposes a general framework in the time domain for the single and multiple microphone cases, from which it is very convenient to derive, study, and analyze all kind of optimal noise reduction filters. Not only that all known algorithms can be deduced from this approach, shedding more light on how they function, but new ones can be discovered as well.

Turkey's Water Policy: National Frameworks and International Cooperation

by Annika Kramer Waltina Scheumann Aysegul Kibaroglu

Water is a strategic natural resource of vital importance to all nations. As such it has been the cause of several international disputes. For Turkey especially, water is crucial to social and economic development. Turkey's current national water regime that emphasises water resources development and management for productive uses, however, faces growing environmental concerns and international criticism regarding transboundary water cooperation. Furthermore, EU accession requires Turkey to adopt an extensive and ambitious body of EU water law. To understand Turkey's position to international water law, the national policies and socio-economic circumstances that impact water resources management need to be considered. This book fills the existing knowledge gap through a broad perspective and analysis of the current state of Turkey's water policy and its management of both national and transboundary waters. It is a unique undertaking that brings together Turkish and international authors, practitioners and academics, covering all aspects of water management

Handbook of Digital Homecare

by Lodewijk Bos Adrie Dumay Kanagasingam Yogesan Leonard Goldschmidt Griet Verhenneman

This second volume of the "Handbook of Digital Homecare" reviews the attempts to develop new ICT services for digital homecare, i.e. services to deliver, maintain and improve care in the home environment using the latest ICT technology and devices. The book highlights the successful projects as well as failures of Digital homecare and provides several "lessons learned" to the wide audience of Health and ICT professionals.

Coping with Climate Change: Principles And Asian Context

by Ramesha Chandrappa Sushil Gupta Umesh Chandra Kulshrestha

The Environmental and climatic issues varies from continent to continent and is unique to Asia. Understanding the issues does need lot of research and study material which students may not be able to gather due to shortage of time and resources. Hence an effort is made by authors gathering there experience and academic input from renowned universities of world. Climate change is real and coping with it is major concern in coming days. Most of the books written and sold in the past need updating and customizing. The general description of climate change and world will not help the professionals and students. It needs to seen area wise as a professional will work in specific geographic area. Hence an effort is made to collect data from Asia which host most populated countries along with ecological hot spots.

Bioaugmentation, Biostimulation and Biocontrol (Soil Biology #10)

by Ajay Singh Ramesh C. Kuhad Nagina Parmar

Bioaugmentation, biostimulation and biocontrol approaches using microbial inoculants, biofertilizers, biochemicals and organic amendments improve soil biology, fertility and crop productivity by providing plant growth-promoting nutrients and suppressing soil-borne diseases and plant-parasitic nematodes. Our knowledge of microbial diversity and its function in soils has been increased tremendously due to the availability of a wealth of data gained through recent advances in the development of molecular methods and metagenomics for the evaluation of microbial diversity and functions in the rhizosphere environment of soil. Chapters dealing with the application of biofertilizers and organic amendments are contributed by experts - authorities in the area of soil science including microbiology and molecular biology - from academic institutions and the industry.

Spanen

by Berend Denkena Hans Kurt Toenshoff

In dem Band werden die physikalischen Grundlagen des Spanens unter Berücksichtigung neuester Forschungserkenntnisse dargestellt. Damit verknüpft stellen die Autoren wichtige Anwendungen wie z. B. Hochgeschwindigkeits- und Hochleistungsspanen vor. Sie vermitteln in dem Band die Anforderungen, denen moderne Werkzeuge und Werkzeugmaschinen sowie innovative Planungen spanender Prozesse genügen müssen. Die Möglichkeiten der Modellierung und Simulation werden in der 3. Auflage in einem neuen Kapitel erläutert. Mit Beispielaufgaben und Lösungen.

The Sound of Silence: Lowest-Noise RIAA Phono-Amps: Designer's Guide

by Burkhard Vogel

There is a wide field of tasks left that can only be satisfyingly attacked with the help of old-fashioned analogue technology, and one of the most important are amplifiers for analogue signals. The strongly expanded content of the second edition of "the sound of silence" leads to affordable amplifier design approaches which will end up in lowest-noise solutions not far away from the edge of physical boundaries set by room temperature and given cartridges - thus, fully compatible with very expensive so called "high-end" or "state-of-the-art" offers on today markets - and, from a noise point of view in most cases outperforming them! With easy to follow mathematical treatment it is demonstrated as well that theory is not far away from reality. Measured SNs will be found within 1dB off the calculated ones and deviations from the exact amplifier transfer won't cross the ± 0.1dB tolerance lines. Additionally, the book presents measurement set-ups and results. Consequently, comparisons with measurement results of test magazine will soon become easier to perform. This new edition includes a new chapters about reference levels, Noise in Amp Input sections, Humming Problems, and much more.

Transient Heat Transfer

by Donatello Annaratone

This book presents a new and direct computational method for transient heat transfer. The approach uses the well-known dimensionless Biot number and a second dimensionless number introduced by the author. The methodology allows for a transient heat transfer calculations without using finite difference programs. The book presents many examples and various tables demonstrating the potential of this new methodology. Many diagrams illustrate the physical phenomena.

Management geistigen Eigentums

by Jürgen Ensthaler Patrick Wege

Das Management geistigen Eigentums spielt eine wichtige Rolle für den Unternehmenserfolg und ist deshalb als eine eigenständige unternehmerische Aufgabe zu betrachten. Aufbauend auf den Gebieten Rechtswissenschaft, Betriebswirtschaft, Managementlehre und Ingenieurswissenschaft, erfordert sie eine interdisziplinäre Herangehensweise. Die Frage der Interdisziplinarität für das Management geistigen Eigentums wird in diesem Buch erstmals behandelt. Außerdem werden rechtswissenschaftliche Aspekte in Managementmodellen konsequent berücksichtigt.

Beam-Wave Interaction in Periodic and Quasi-Periodic Structures: Beam-wave Interaction In Periodic And Quasi-periodic Structures (Particle Acceleration and Detection)

by Levi Schächter

The main theme of this book is the interaction of electrons with electromagnetic waves in the presence of periodic and quasi-periodic structures in vacuum, in view of applications in the design and operation of particle accelerators. The first part of the book is concerned with the textbook-like presentation of the basic material, in particular reviewing elementary electromagnetic phenomena and electron dynamics. The second part of the book describes the current models for beam-wave interactions with periodic and quasi-periodic structures. This is the basis for introducing, in the last part of the book, a number of particle and radiation sources that rest on these principles, in particular the free-electron laser, wake-field acceleration schemes and a number of other advanced particle accelerator concepts. This second edition brings this fundamental text up-to-date in view of the enormous advances that have been made over the last decade since the first edition was published. All chapters, as well as the bibliography, have been significantly revised and extended, and the number of end-of-chapter exercises has been further increased to enhance this book's usefulness for teaching specialized graduate courses.

Chemical Thermodynamics: An Introduction

by Ernö Keszei

This course-derived undergraduate textbook provides a concise explanation of the key concepts and calculations of chemical thermodynamics. Instead of the usual 'classical' introduction, this text adopts a straightforward postulatory approach that introduces thermodynamic potentials such as entropy and energy more directly and transparently. Structured around several features to assist students' understanding, Chemical Thermodynamics : Develops applications and methods for the ready treatment of equilibria on a sound quantitative basis.Requires minimal background in calculus to understand the text and presents formal derivations to the student in a detailed but understandable way.Offers end-of-chapter problems (and answers) for self-testing and review and reinforcement, of use for self- or group study.This book is suitable as essential reading for courses in a bachelor and master chemistry program and is also valuable as a reference or textbook for students of physics, biochemistry and materials science.

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Showing 60,801 through 60,825 of 74,209 results