الصفحة 1
الصفحة 1
One-Dimensional Nanostructures
One-dimensional (1D) nanostructures, including nanowires, nanotubes and quantum wires, have been regarded as the most promising building blocks for nanoscale electronic and optoelectronic devices. Worldwide efforts in both the theory and the experimental investigation of growth, characterization and applications of 1D nanostructures have resulted in a mature, multidisciplinary field. In this book, a wealth of state-of-the-art information offers the opportunity to uncover the underlying science from diverse perspectives. Leading researchers elucidate the synthesis and properties of 1D nanostructures for various morphologies and compositions (semiconductor, metal, carbon, etc.) as well as their considerable impact on spintronics, information storage, and the design of field-effect transistors.
Novel NMR and EPR Techniques
This book delivers a survey of recent research in the fields of condensed matter physics and chemistry based on novel NMR and ESR techniques. Applications include quantum computing, metal nanoparticles, low dimensional magnets, fullerenes as atomic cages, superconductors, porous media, and laser assisted studies. The book is dedicated to Professor Robert Blinc, on the occasion of his seventieth birthday, in appreciation of his remarkable scientific accomplishments in the NMR of condensed matter.
Non-metallic biomaterials for tooth repair and replacement
Focuses on the use of biomaterials for a range of applications in tooth repair and, in particular, dental restoration. Part one reviews the structure, modification and repair of dental tissues. The properties of enamel and dentin and their role in adhesive dental restoration are discussed, along with biomineralization and biomimicry of tooth enamel, and enamel matrix proteins (EMPs) for periodontal regeneration. Part two goes on to discuss the processing, bonding and wear properties of dental ceramics, glasses and sol-gel derived bioactive glass ceramics for tooth repair and replacement. Dental composites for tooth repair and replacement are then the focus of part three, including composite adhesive and antibacterial restorative materials for dental applications. T
Non-Covalent Multi-Porphyrin Assemblies : Synthesis and Properties
This book presents an overview of the synthesis, structure, and properties of molecules obtained by connecting several porphyrins or metalloporphyrins through a variety of chemical linkages. This handsomely produced book gives the reader a broad introduction to this popular and important field. Much of the work encompassed in this area is inspired by the desire to obtain photochemically responsive molecules capable of mimicking various aspects of photosynthesis… As with many edited volumes of this type, there is a certain amount of duplicate coverage of some topics. Also the focus is largely on the methods used to generate the multiporphyrin arrays, and in some cases less attention is given to the properties, other than the structural properties of these arrays.
N-Heterocyclic Carbenes in Transition Metal Catalysis
It was only in the early 1990s that carbenes with the carbene carbon being incorporated in a nitrogen containing heterocycle (N-heterocyclic carbenes or NHCs) were found to be stable enough to be isolated. Since the first report on the application of NHCs as ligands in transition metal catalysis in 1995, NHC have found numerous applications and have been established as a versatile and indispensable class of ligands. For many reactions like metathesis or cross-coupling reactions NHCs have often become the ligands of choice, allowing otherwise difficult transformations. In this book leading experts have surveyed major areas of application of NHC metal complexes in catalysis. The authors have placed a special focus on nickel- and palladium-catalyzed reactions, on applications in metathesis reactions, on oxidation reactions and on the use of chiral NHC-based catalysts. This compilation is rounded out by an introductory chapter and a chapter dealing with synthetic routes to NHC metal complexes.
New Carbon Based Materials for Electrochemical Energy Storage Systems : Batteries, Supercapacitors and Fuel Cells
This NATO-ARW volume contains a diverse collection of papers addressing the role of carbon in some key electrochemical systems, both conventional and emerging. These papers discuss the latest issues associated with development, synthesis, characterization and use of new advanced carbonaceous materials for electrochemical energy storage. Such systems include: metal-air primary and rechargeable batteries, fuel cells, supercapacitors, cathodes and anodes of lithium-ion and lithium polymer rechargeable batteries, as well as nanocarbon materials of the future.
New Aspects of Zirconium Containing Organic Compounds
Metal carbene complexes have made their way from organometallic curiosities to valuable reagents and catalysts. They offer novel synthetic opportunities in carbon-carbon bond formation based on either carbene-centered reactions or on metal-templated processes which makes them indispensable in modern synthetic methodology. The most prominent metal carbenes are now either commercially available or easy to synthesize and handle with modern laboratory techniques. This volume organized in eight chapters written by the leading scientists in the field illustrates the theoretical background, non-classical nucleophilic and cycloaddition patterns, chromium-templated benzannulation and photo-induced reactions, rhodium-catalyzed carbene transfer as well as the principles and applications of olefin metathesis which has coined the progress in synthetic methodology over the past decade. Designed for researchers in academia and industry as well as graduate students it presents the state-of-the-art potential of carbene complexes in modern organic synthesis.
Neuroscribe = نيوروسكرايب
Neuroscribe is a cutting-edge deep learning framework designed to address the complexities and inefficiencies encountered in existing frameworks like PyTorch and TensorFlow. Aimed at streamlining model development and enhancing performance across diverse hardware environments, NeuroScribe offers a lightweight and flexible solution. The framework features a robust tensor library, an auto-differentiation engine, a comprehensive neural network module, and advanced optimization algorithms. With built-in visualization tools and a user-friendly interface, NeuroScribe simplifies both beginner and advanced workflows. Its cross-platform compatibility, supported by CUDA and Metal Performance Shaders (MPS), ensures optimal performance, and in some scenarios, NeuroScribe demonstrates superior speed compared to leading frameworks. Additionally, NeuroScribe introduces unique libraries and features not found in other frameworks, further enhancing its versatility and appeal. The modular architecture and automatic system detection further enhance its adaptability, making NeuroScribe a versatile and powerful tool for deep learning practitioners.
Neodymium Based Ziegler Catalysts - Fundamental Chemistry
In this volume we try to review the available literature by two independentapproaches to Nd and Ln-catalyzed diene polymerizations. In the first part ofthe volume, which is entitled “Neodymium-Based Ziegler/Natta Catalysts andtheir Application in Diene Polymerization”, a polymer chemist’s view is givenwith strong emphasis on Nd-based catalyst systems. Also technological andindustrial aspects of Nd-catalyzed diene polymerizations are addressed. In thesecond part of the volume, which is entitled “Rare-Earth Metals and AluminumGetting Close in Ziegler-type Organometallics”, a more organometallic per-spective is given and Ln-based catalyst systems are addressed. By the synopsisof these different perspectives, the reader will comprehend the complexity ofLn-based Ziegler catalyst systems and their application to the polymerizationof dienes.
Nanostructured Materials by High-Pressure Severe Plastic Deformation
Recently, it was reported that nanostructured materials processed under high pressure by HPT and ECAP have an extraordinary combination of both high strength and high ductility, which are two desirable, but rarely co-existing properties. These findings indicate that high-pressure is a critical factor that can be employed to process nanostructured materials with superior mechanical, and possibly also physical, properties. It is the objective of this workshop to review our current knowledge, identify issues for future research, and discuss future directions on the processing and properties of nanostructured materials via SPD techniques, with a special emphasis on high-pressure effects.
Nanoscaled Semiconductor-on-Insulator Structures and Devices
This proceedings volume constitutes an archive of the contributions of the key-speakers who attended the NATO Advanced Research Workshop on “Nanoscaled Semiconductor-On-Insulator Structures and devices” held in the Tourist and Recreation Centre “Sudak” (Crimea, Ukraine) from 15 to 19 October 2006. The semiconductor industry has sustained a very rapid growth during the last three decades through impressive technological developments which have resulted in products with higher performance and lower cost per function. After many years of development it is now confidently predicted that semiconductor-on-insulator materials will enter and increasingly be used by manufacturing industry. The wider use of semiconductor (es- cially silicon) on insulator materials will not only enable the benefits of these materials to be demonstrated but, also, will drive down the cost of substrates which, in turn, will stimulate the development of other novel devices and applications.
N4-Macrocyclic Metal Complexes
The study of nanoparticles is anchored in Colloid Science. Colloid Science as we consider it today was nucleated by Wolfgang Ostwald and initiated by his biological studies. The strong connection between biology and Colloid Science lost attractiveness in the last decades. The revival of this interdisciplinary science is now noted and we hope that a signal will start from the Potsdam conference. "This is an excellent and detailed book of 14 chapters that is timely in its reviews of the electrochemical and electrocatalytic properties of the porphyrinoids and is written by a range of experts in the different fields covered.
Multiple Bonds between Metal Atoms
The 3rd edition of the Multiple Bonds between Metal Atoms deals with one of the most active fields of inorganic chemistry … . It presents an extensive, critical review and discussion of preparations, reactions, bonding, and physical properties of more than 4000 compounds … heartily recommend it to inorganic and materials chemists, and to all scientists concerned with the synthesis, spectroscopy, and structures of transition-metal compounds. It also belongs in academic, industrial, and government research libraries.
Molecular Wires : From Design to Properties
In the emerging field of nanoscience the desire to construct objects which in the molecular scale can resemble and act as macroscopic devices is a constant trend. Amongst the simplest but also most attractive functional component molecular wires are surely the most investigated. The reason for such interest is quite obvious since wires, in today world, are used all around us and are the most indispensable unit to assemble any type of electronic devices.In this issue the synthesis and characterization of molecular wires based on organic or metal complexes components, their properties and some theoretical background will be illustrated.
Molecular microbiology of heavy metals
Molecular Microbiology of Heavy Metals includes chapters on allocation of metals in cells, metal transporter, storage and metalloregulatory proteins, cellular responses to metal ion stress, transcription of genes involved in metal ion homeostasis, uptake of essential metals, metal efflux and other detoxification mechanisms. Also discussed are metal bioreporters for the nanomolar range of concentration and tools to address the metallome. Chapters in the second part cover specific metals such as Fe, Mn, Cu, Ni, Co, Zn and Mo as key nutrient elements and Ag, As, Cd, Hg and Cr as toxic elements.
Molecular Machines
The chapters in this volume describe bottom-up strategies and chronicle cutting-edge advances from several of the world’s leading laboratories engaged in the development of molecular machines.The Nobel Prize in Chemistry 2016 was awarded jointly to Jean-Pierre Sauvage, Sir J. Fraser Stoddart and Bernard L. Feringa "for the design and synthesis of molecular machines". Both Jean-Pierre Sauvage and Sir J. Fraser Stoddart have also contributed to this book.
Molecular bio-sensors and the role of metal ions
Represents a milestone of contemporary progress and understanding of molecular bio-sensors for metal ions. It is bringing together the latest research in academia and industry, and it also emphasizes the spectrum of evolving regulations from regulatory bodies. This vibrant research area is covered by 31 internationally recognized experts. The impact of MILS-23 is manifested by more than 1300 references and close to 200 figures, more than 100 of them in color; further information is summarized in several tables. In conclusion, Volume 23 significantly advances our understanding of Molecular Bio-Sensors, it is therefore an essential resource for scientists working in the wide range from earth sciences, material sciences, physics, pharmacology, enzymology, analytical, organic, and inorganic biochemistry all the way through to medicine including the clinic.
Molecular Biology of Metal Homeostasis and Detoxification : From Microbes to Man
One of the challenges faced by every cell as well as by whole organisms is to maintain appropriate concentrations of essential nutrient metals while excluding nonessential toxic metals. Toward that end, all organisms have developed mechanisms for metal homeostasis and detoxification to maintain metal levels within physiological limits. This book brings together current knowledge of the molecular basis of metal homeostasis and detoxification in various eukaryotic model systems, including yeasts, plants, and mammals. It focuses on the cellular systems controlling metal transport, intracellular distribution, and immobilization as well as on systems regulating metal-dependent transcription. In addition to environmental aspects (including phytoremediation), the book treats the pathophysiology of metal deficiency and overload in relation to disease.
Modern trends in research on steel, aluminium and composite structures includes papers presented at the 14th International Conference on metal structures 2021 ; ICMS 2021, Poznań, Poland, 16-18 June 2021
Modern Trends in Research on Steel, Aluminium and Composite Structures includes papers presented at the 14th International Conference on Metal Structures 2021 (ICMS 2021, Pozna, Poland, 16-18 June 2021). The 14th ICMS summarised a few years' theoretical, numerical and experimental research on steel, aluminium and composite structures, and presented new concepts.
Modern Magnetic Resonance ; Part 1 : Applications in Chemistry, Biological and Marine Sciences ; Part 2 : Applications in Medical and Pharmaceutical Sciences ; Part 3 : Applications in Materials Science and Food Science
Modern Magnetic Resonance provides a unique and comprehensive resource on up-to-date uses and applications of magnetic resonance techniques in the sciences, including chemistry, biology, materials, food, medicine, pharmaceuticals and marine sciences.The widespread appeal of MMR methods for revealing information at the molecular and microscopic levels is noted and examples are provided from the chemical and other sciences.Until now, there has been no single publication that covers all the areas encompassed by "Modern Magnetic Resonance", by bringing together the various techniques and their applications in many scientific areas, the internationally renowned Editors have created a resource of broad appeal to the scientific community.
