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Showing 96,626 through 96,650 of 100,000 results

STM Investigation of Molecular Architectures of Porphyrinoids on a Ag(111) Surface

by Florian Buchner

The self-assembly of large organic molecules has become a vividly explored and interdisciplinary field in science. One major goal is the tailored fabrication of highly ordered, molecular networks, which are stabilized on a metal surface. Metalloporphyrins receive particular attention, because their distinct intrinsic functionalities make them promising candidates for applications in chemical sensors, solar cells, and for tailored catalytic processes. Based on scanning tunneling microscopy investigations, several novel and fundamental contributions are presented, which has led to a new level of understanding. Highlights are the results with respect to intramolecular conformation and supramolecular ordering, electronic interactions with the substrate, surface confined synthesis such as in-situ metallation reactions, and ligand effects.The number of publications this work has led to emphasises its quality and significance.

Carbohydrates in Sustainable Development II (Topics in Current Chemistry #294)

by Amélia P. Rauter Pierre Vogel Yves Queneau

Knoevenagel Reaction of Unprotected Sugars, By M.-C. Scherrmann ; Carbohydrate-Based Lactones: Synthesis and Applications, By N. M. Xavier, A. P. Rauter, and Y. Queneau; Heterogeneously-Catalyzed Conversion of Carbohydrates, By K. De Oliveira Vigier and F. Jérôme; Palladium-Catalyzed Telomerization of Butadiene with Polyols: From Mono to Polysaccharides, By S. Bouquillon, J. Muzart, C. Pinel, and F. Rataboul; Monosaccharides, By J.A. Galbis and M.G. García-Martín; Natural Sources, By L. Weignerová and V. Křen; Synthesis and Applications of Ionic Liquids Derived from Natural Sugars; By C. Chiappe, A. Marra, and A. Mele

The Moon in Close-up

by John Wilkinson

Information collected by recent space probes sent to explore the Moon by the USA, the European Space Agency, Japan, China and India has changed our knowledge and understanding of the Moon, particularly its geology, since the Apollo missions. This book presents those findings in a way that will be welcomed by amateur astronomers, students, educators and anyone interested in the Moon. Enhanced by many colour photos, it combines newly acquired scientific understanding with detailed descriptions and labelled photographic maps of the lunar surface. Guided by observation methods explained in the book and 17 Study Areas presented and carefully explained in the last chapter, amateur astronomers can observe these features from Earth using telescopes and binoculars. Readers who consult the photographic maps will gain a better understanding about the Moon's topography and geology. The book is rounded out by a helpful glossary.

Carbon Nanotubes for Biomedical Applications (Carbon Nanostructures)

by Rüdiger Klingeler Robert B. Sim

This book explores the potential of multi-functional carbon nanotubes for biomedical applications. It combines contributions from chemistry, physics, biology, engineering, and medicine. The complete overview of the state-of-the-art addresses different synthesis and biofunctionalisation routes and shows the structural and magnetic properties of nanotubes relevant to biomedical applications. Particular emphasis is put on the interaction of carbon nanotubes with biological environments, i.e. toxicity, biocompatibility, cellular uptake, intracellular distribution, interaction with the immune system and environmental impact. The insertion of NMR-active substances allows diagnostic usage as markers and sensors, e.g. for imaging and contactless local temperature sensing. The potential of nanotubes for therapeutic applications is highlighted by studies on chemotherapeutic drug filling and release, targeting and magnetic hyperthermia studies for anti-cancer treatment at the cellular level.

In-situ Studies with Photons, Neutrons and Electrons Scattering

by Sudarsanam Suresh Babu Thomas Kannengiesser Antonio J. Ramirez Yu-Ichi Komizo

In-situ scattering and diffraction measurements using synchrotron and neutron beam lines have become a viable tool to look at the non-equilibrium processing of advanced materials. This volume presents the subject from the theoretical and experimental standpoint, in order to provide a closer insight into the different synchrotron and neutron diffraction techniques as well as innovative microscopy techniques. It addresses the following items: - Phase detection and quantification - In-situ welding experiments - Stress/strain build-up - Model development and Simulation - Analysis tools and programming

The Remote Sensing of Tropospheric Composition from Space

by John P. Burrows Peter Borrell Ulrich Platt

The impact of anthropogenic activities on our atmospheric environment is of growing public concern and satellite-based techniques now provide an essential component of observational strategies on regional and global scales. The purpose of this book is to summarise the state of the art in the field in general, while describing both key techniques and findings in particular. It opens with an historical perspective of the field together with the basic principles of remote sensing from space. Three chapters follow on the techniques and on the solutions to the problems associated with the various spectral regions in which observations are made. The particular challenges posed by aerosols and clouds are covered in the next two chapters. Of special importance is the accuracy and reliability of remote sensing data and these issues are covered in a chapter on validation. The final section of the book is concerned with the exploitation of data, with chapters on observational aspects, which includes both individual and synergistic studies, and on the comparison of global and regional observations with chemical transport and climate models and the added value that the interaction brings to both. The book concludes with scientific needs and likely future developments in the field, and the necessary actions to be taken if we are to have the global observation system that the Earth needs in its present, deteriorating state. The appendices provide a comprehensive list of satellite instruments, global representations of some ancillary data such as fire counts and light pollution, a list of abbreviations and acronyms, and a set of colourful timelines indicating the satellite coverage of tropospheric composition in the foreseeable future. Altogether, this book will be a timely reference and overview for anyone working at the interface of environmental, atmospheric and space sciences.

Sustainable Land Management

by Selim Kapur Hari Eswaran Winfried E.H. Blum

Soil quality is threatened by many human-induced activities, but can also be improved by good land management. In the relatively short history of mankind on earth, the landscape and soils of the world have been drastically modified from their "natural " state. Landscapes altered by man's activities are termed "Anthroscapes" which are inextricably linked to culture and history. The challenges for today's scientists are to devise and implement sustainable land management strategies in order to preserve the land for the benefit of future generations. This book is a valuable compendium of the research experiences so far gained in studies of the context and concept of the "Anthroscape" and highlights the potential future contributions of such research to sustainable development.

Macro-engineering Seawater in Unique Environments: Arid Lowlands and Water Bodies Rehabilitation

by Viorel Badescu Richard Cathcart

The subjects refer to histories of ancient and modern use of seacoasts; possible macro-projects capable of massive changes in the coastlines of the Dead Sea, Red Sea and Persian Gulf caused by canal and massively scaled hydropower dam installations; relevant macro-projects for the Black Sea and Baltic Sea; possibilities of refreshment of the Aral Sea and Iran's Lake Uremia with seawater or river freshwater importation macro-projects; potential rehabilitation of some vital arid zone regions now dominated by moving or movable surface granular materials using unique and unusual macro-projects; seawater flooding of land regions situated below present-day global sea-level; harnessing energy and obtaining freshwater from the world's salt-laden ocean by modern industrial means; various macro-projects designed specifically for the protection (reduction of vulnerability) of particular Earth geographical regions.

The Economic, Social and Political Elements of Climate Change

by Walter Leal Filho

A unique feature of this book is its strong practice-oriented nature: it contains a wide range of papers dealing with the social, economic and political aspects of climate change, exemplifying the diversity of approaches to climate change management taking place all over the world, in a way never seen before. In addition, the book describes a number of projects and other initiatives happening in Africa, Asia, Europe, Latin American and the Australasian region, providing a profile of the diversity of works taking place today.

Epigenetics and Human Reproduction

by Saadi Khochbin Sophie Rousseaux

Epigenetics is a rapidly expanding field in medical and biological research which concerns heritable traits that are not attributable to changes in the DNA sequence. Epigenetic mechanisms play key roles in many biological processes, and it has become clear that their disruption can gives rise to diverse pathologies in humans. Edited by preeminent experts, Sophie Rousseaux and Saadi Khochbin, this volume in the 'Epigenetics and Human Health' series discusses the role of epigenetics in human reproduction

Tackling Turbulent Flows in Engineering

by Anupam Dewan

The emphasis of this book is on engineering aspects of fluid turbulence. The book explains for example how to tackle turbulence in industrial applications. It is useful to several disciplines, such as, mechanical, civil, chemical, aerospace engineers and also to professors, researchers, beginners, under graduates and post graduates. The following issues are emphasized in the book: - Modeling and computations of engineering flows: The author discusses in detail the quantities of interest for engineering turbulent flows and how to select an appropriate turbulence model; Also, a treatment of the selection of appropriate boundary conditions for the CFD simulations is given. - Modeling of turbulent convective heat transfer: This is encountered in several practical situations. It basically needs discussion on issues of treatment of walls and turbulent heat fluxes. - Modeling of buoyancy driven flows, for example, smoke issuing from chimney, pollutant discharge into water bodies, etc

Memory Mass Storage

by Federico Tiziani Giovanni Campardo Massimo Iaculo

Memory Mass Storage describes the fundamental storage technologies, like Semiconductor, Magnetic, Optical and Uncommon, detailing the main technical characteristics of the storage devices. It deals not only with semiconductor and hard disk memory, but also with different ways to manufacture and assembly them, and with their application to meet market requirements. It also provides an introduction to the epistemological issues arising in defining the process of remembering, as well as an overview on human memory, and an interesting excursus about biological memories and their organization, to better understand how the best memory we have, our brain, is able to imagine and design memory.

Testing Molecular Wires

by Mateusz Wielopolski

The field of molecular electronics and organic photovoltaics is steadily growing. One of the major themes in molecular electronics is the construction, measurement, and understanding of the current-voltage response of an electronic circuit, in which molecules may act as conducting elements. The investigated molecular structures in this thesis have been shown to be suitable for distance-independent charge transport. More precisely, the systems investigated were of particular interest due to their ability to provide efficient electronic coupling between electroactive units, and display wire-like behavior in terms of transferring charges from donors to acceptors. Besides impacting on the field of molecular electronics, the results of this research also has applications in the design and development of light harvesting, photoconversion and catalytic modules. This work is a great asset to the field of charge transport through organic pi-conjugated molecules.

Models of the Atomic Nucleus

by Norman D. Cook

Very intuitive and physically precise visualization software for nuclear models Database of all nuclei and isotopes included All nuclear parameters are adjustable in a wide range Comprehensive and introductory book on nuclear models Platform invariant software (Windows, Unix, Mac)

Stellar Physics

by A. Y. Blinov Gennady S. Bisnovatyi-Kogan M. Romanova

"Stellar Physics" is a an outstanding book in the growing body of literature on star formation and evolution. Not only does the author, a leading expert in the field, very thoroughly present the current state of knowledge on stellar physics, but he handles with equal care the many problems that this field of research still faces. A bibliography with well over 1000 entries makes this book an unparalleled reference source. "Stellar Evolution and Stability" is the second of two volumes and can be read, as can the first volume "Fundamental Concepts and Stellar Equilibrium," as a largely independent work. It traces in great detail the evolution of protostars towards the main sequence and beyond this to the last stage of stellar evolution, with the corresponding vast range from white dwarfs to supernovae explosions, gamma-ray bursts and black hole formation. The book concludes with special chapters on the dynamical, thermal and pulsing stability of stars. This second edition is carefully updated in the areas of pre-supernova models, magnetorotational supernovae, and the theory of accretion disks around black holes. Additional sections have been added on strange quark stars, jet formation and collimation, radiation-driven winds in strong gravitational fields and gamma-ray bursts.

Lean Time Management

by Ralph Brugger

Der Autor bietet seinen Lesern in diesem Band eine Mischung aus intelligentem Infotainment und unterhaltsamem Leseabenteuer: In erheiternden Zeitreisen transportiert er auf ungewöhnliche Art und Weise Erkenntnisse über die Zeit. Für den Umgang mit der Zeit liefert er überraschende Anregungen und empfiehlt zwei Sofortmaßnahmen, mit denen jeder gerettet werden kann, der unter Zeitnot leidet. Das Buch des Autors ist die ungewöhnlichste "Zeitrettungsaktion", seit es Zeitmanagement gibt.

The Human Brain

by Miguel Marín-Padilla

This book is unique among the current literature in that it systematically documents the prenatal structural development of the human brain. It is based on lifelong study using essentially a single staining procedure, the classic rapid Golgi procedure, which ensures an unusual and desirable uniformity in the observations. The book is amply illustrated with 81 large, high-quality color photomicrographs never previously reproduced. These photomicrographs, obtained at 6, 7, 11, 15, 18, 20, 25, 30, 35, and 40 weeks of gestation, offer a fascinating insight into the sequential prenatal development of neurons, blood vessels, and glia in the human brain.

The Physics of the Manhattan Project

by B. Cameron Reed

The development of nuclear weapons during the Manhattan Project is one of the most significant scientific events of the twentieth century. This book, prepared by a gifted teacher of physics, explores the challenges that faced the members of the Manhattan project. In doing so it gives a clear introduction to fission weapons at the level of an upper-level undergraduate physics student. Details of nuclear reactions, their energy release, the fission process, how critical masses can be estimated, how fissile materials are produced, and what factors complicate bomb design are covered. An extensive list of references and a number of problems for self-study are included. Links are given to several spreadsheets with which users can run many of the calculations for themselves.

Entropy Coders of the H.264/AVC Standard

by Thinh M. Le Xiaohua Tian Yong Lian

This book presents a collection of algorithms and VLSI architectures of entropy (or statistical) codecs of recent video compression standards, with focus on the H.264/AVC standard. For any visual data compression scheme, there exists a combination of two, or all of the following three stages: spatial, temporal, and statistical compression. General readers are first introduced with the various algorithms of the statistical coders. The VLSI implementations are also reviewed and discussed. Readers with limited hardware design background are also introduced with a design methodology starting from performance-complexity analyses to software/hardware co-simulation. A typical design of the Contextbased Adaptive Binary Arithmetic Coding (CABAC) encoder is also presented in details. To support System-on-Chip design environment, the CABAC design is wrapped with a SoC-based Wishbone system bus interface.

Topology and Geometry for Physics

by Helmut Eschrig

A concise but self-contained introduction of the central concepts of modern topology and differential geometry on a mathematical level is given specifically with applications in physics in mind. All basic concepts are systematically provided including sketches of the proofs of most statements. Smooth finite-dimensional manifolds, tensor and exterior calculus operating on them, homotopy, (co)homology theory including Morse theory of critical points, as well as the theory of fiber bundles and Riemannian geometry, are treated. Examples from physics comprise topological charges, the topology of periodic boundary conditions for solids, gauge fields, geometric phases in quantum physics and gravitation.

New Frontiers of Nanoparticles and Nanocomposite Materials

by Andreas Öchsner Ali Shokuhfar

The development of nanomaterials opens the possibility for new materials with outstanding properties compared to classical engineering materials. These materials can find applications in different fields such as medical treatment or structural mechanics. This monograph focuses on two major groups of nanomaterials, i.e.nanoparticels and nanocomposites. Nanopartices, for example in the form of hollow particles, allow for new possibilities in drug delivery. Different aspects of nanoparticles ranging from manufacturing to modeling and simulation are covered. Nanocomposite materials are formed by mixing two or more dissimilar materials at the nanoscale in order to control and develop new and improved structures and properties. The properties of nanocomposites depend not only on the individual components used but also on the morphology and the interfacial characteristics. Nanocomposite coatings and materials are one of the most exciting and fastest growing areas of research and novel properties being continuously developed which are previously unknown in the constituent materials. Thus, the second part of this monograph gives an overview on the latest developments in the area of composites and coatings based on nanomaterials.

Statistics in Clinical Vaccine Trials

by Jozef Nauta

This monograph offers well-founded training and expertise on the statistical analysis of data from clinical vaccine trials, i.e., immunogenicity and vaccine field efficacy studies. The book's scope is practical rather than theoretical. It opens with two introductory chapters on the immunology of vaccines to provide readers with the necessary background knowledge. It then continues with an in-depth exploration of the statistical methodology. Many real-life examples and SAS codes are presented, making application of the methods straightforward. Topics discussed include maximum likelihood estimation for censored antibody titers, ANCOVA for antibody values, analysis of equivalence and non-inferiority immunogenicity trial data, analysis of data from vaccine field efficacy trials (including data from studies with recurrent infection data), fitting protection curves to data of challenge or field efficacy studies, and the analysis of vaccine safety data.

Proceedings of the 37th International Symposium on Archaeometry, 13th - 16th May 2008, Siena, Italy

by Isabella Turbanti-Memmi

The book contains the Proceedings of the 37th International Symposium on Archaeometry, 12th May 2008, Siena, Italy. The aim of the Symposium is to promote the development and use of scientific techniques in order to extract archaeological and historical information from cultural heritage and the paleoenvironment. It involves all Natural Sciences and all types of objects and materials related with human activity. Papers deal with the development and/or application of scientific techniques for extracting information related to human activities of the past, including the biological nature of man himself and the environment in which he lived. Topics include: Field Archaeology and Intergrated Site Studies; Archaeo-chronometry including recent developments in Radiocarbon Dating; Human - Environment Interactions including Geoarchaeology, Palaeoclimate studies, Landscape Archaeology, Environmental reconstructions, etc.; Bioarchaeology; Food preparation and consumption in Antiquity; the Technology and Provenance of Stone, Plaster, Pigments;Ceramics, Glazes, Glass and Vitreous Materials, Metals and Metallurgical Ceramics; and Micro/nano diagnostic techniques.

Heutige bewaffnete Konflikte als Herausforderungen an das humanitäre Völkerrecht

by Hans-Joachim Heintze Knut Ipsen

Aus Anlass des 60sten Jahrestages der Genfer Konventionen wird aus verschiedenen Blickwinkeln in dem Sammelband die Frage untersucht, ob diese Normen noch auf heutige Konflikte anwendbar sind und in wieweit sie einer Weiterentwicklung bedürfen. So wird am Beispiel des Irak hinterfragt, ob das klassische Recht der Okkupation noch anwendbar ist, ob es sich beim Kampf gegen den Terrorismus um einen Krieg handelt und welches Verhältnis zwischen dem Menschenrechtsschutz und dem humanitären Völkerrecht besteht.

Carbon and Oxide Nanostructures: Synthesis, Characterisation and Applications (Advanced Structured Materials #5)

by Noorhana Yahya

This volume covers all aspects of carbon and oxide based nanostructured materials. The topics include synthesis, characterization and application of carbon-based namely carbon nanotubes, carbon nanofibres, fullerenes, carbon filled composites etc. In addition, metal oxides namely, ZnO, TiO2, Fe2O3, ferrites, garnets etc., for various applications like sensors, solar cells, transformers, antennas, catalysts, batteries, lubricants, are presented. The book also includes the modeling of oxide and carbon based nanomaterials. The book covers the topics: Synthesis, characterization and application of carbon nanotubes, carbon nanofibres, fullerenes Synthesis, characterization and application of oxide based nanomaterials. Nanostructured magnetic and electric materials and their applications. Nanostructured materials for petro-chemical industry. Oxide and carbon based thin films for electronics and sustainable energy. Theory, calculations and modeling of nanostructured materials.

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Showing 96,626 through 96,650 of 100,000 results