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Showing 21,326 through 21,350 of 76,602 results

Electron and Phonon Spectrometrics

by Chang Q Sun

This book presents the latest advances and future trends in electron and phonon spectrometrics, focusing on combined techniques using electron emissions, electron diffraction, and phonon absorption and reflection spectrometrics from a substance under various perturbations to obtain new information on bond-electron-phonon dynamics. Discussing the principles of the bond order-length-strength (BOLS) correlation, nonbonding electron polarization (NEP), local bond average (LBA), and multi-field lattice oscillation dynamics for systems under perturbation, the book covers topics like differential photoelectron/phonon spectrometrics (DPS), which distils transition of the length, energy, stiffness and the fraction of bonds upon chemical or physical conditioning; and the derived performance of electrons in various bands in terms of quantum entrapment and polarization. This book appeals to researchers, scientists and engineers in the fields of chemistry, physics, surface and interface science, and materials science and engineering who are interested in electron and phonon spectrometrics.

Electron and Proton Kinetics and Dynamics in Flaring Atmospheres

by Valentina Zharkova

This timely book presents new research results on high-energy particle physics related to solar flares, covering the theory and applications of the reconnection process in a clear and comprehensible way. It investigates particle kinetics and dynamics in flaring atmospheres and their diagnostics from spectral observations, while providing an analysis of the observation data and techniques and comparing various models.Written by an internationally acclaimed expert, this is vital reading for all solar, astro-, and plasma physicists working in the field.

Electron Backscatter Diffraction in Materials Science

by Brent L. Adams Mukul Kumar Adam J. Schwartz David P. Field

Electron backscatter diffraction is a very powerful and relatively new materials characterization technique aimed at the determination of crystallographic texture, grain boundary character distributions, lattice strain, phase identification, and much more. The purpose of this book is to provide the fundamental basis for electron backscatter diffraction in materials science, the current state of both hardware and software, and illustrative examples of the applications of electron backscatter diffraction to a wide-range of materials including undeformed and deformed metals and alloys, ceramics, and superconductors. The text has been substantially revised from the first edition, and the authors have kept the format as close as possible to the first edition text. The new developments covered in this book include a more comphrensive coverage of the fundamentals not covered in the first edition or other books in the field, the advances in hardware and software since the first edition was published, and current examples of application of electron backscatter diffraction to solve challenging problems in materials science and condensed-matter physics.

Electron-Based Bioscience and Biotechnology

by Masaharu Ishii Satoshi Wakai

This book offers a comprehensive introduction to electron-based bioscience, biotechnology, and biocorrosion. It both explains the importance of electron flow during metabolic processes in microorganisms and provides valuable insights into emerging applications in various fields. In the opening section, readers will find up-to-date information on topics such as electron transfer reactions, extracellular electron transfer mechanisms, direct interspecies electron transfer, and electron uptake by sulfate-reducing bacteria. The focus then shifts to state-of-the-art advances and applications in the field of biotechnology. Here, the coverage encompasses e.g. progress in understanding electrochemical interactions between microorganisms and conductive particles, enzymatic reactions and their application in the bioproduction of useful chemicals, and the importance of redox balance for fatty acid production. In closing, the book addresses various aspects of the complex phenomenon of microbiologically induced corrosion, highlighting novel insights from the fields of electromicrobiology and electrochemistry and their implications.

Electron Beam Wire Deposition Technology and Its Application (Additive Manufacturing Technology)

by Shuili Gong Jianrong Liu Guang Yang Haiying Xu

This book provides a systematic and comprehensive introduction to the technical principles, materials, processes, and equipment of the electron beam wire deposition technology (EBWD), while focusing on the research results of the author’s scientific research team engaged in this technology in China. It mainly introduces the conceptual connotation, principle, and characteristics of the EBWD technology, its position and function in the additive manufacturing technology system, the direction and trend of technological development at home and abroad, the fundamentals and application results of the EBWD technology, including technical principles, equipment technology, special materials, manufacturing technology, quality testing, and application practices. So this book can serve as a reference book for teachers, students, and scientific researchers in scientific research institutions who are engaged in relevant studies.

Electron Correlation in Molecules

by S. Wilson

Electron correlation effects are of vital significance to the calculation of potential energy curves and surfaces, the study of molecular excitation processes, and in the theory of electron-molecule scattering. This text describes methods for addressing one of theoretical chemistry's central problems, the study of electron correlation effects in molecules.Although the energy associated with electron correlation is a small fraction of the total energy of an atom or molecule, it is of the same order of magnitude as most energies of chemical interest. If the solution of quantum mechanical equations from first principles is to provide an accurate quantitative prediction, reliable techniques for the theoretical determination of the effect of electron correlation on molecular properties are therefore important. To that end, this text explores molecular electronic structure, independent electron models, electron correlation, the linked diagram theorem, group theoretical aspects, the algebraic approximation, and truncation of expansions for expectation values.

Electron Crystallography of Soluble and Membrane Proteins

by Ingeborg Schmidt-Krey Yifan Cheng

The basic principle of electron crystallography is to calculate a 3D density map by combining the amplitudes obtained from electron diffraction patterns with the experimental phases calculated from images of two-dimensional crystals of membrane or soluble proteins. This technology is very well developed and has produced a number of atomic models of membrane proteins in a lipid environment. Focused on comprehensive experimental protocols, Electron Crystallography of Soluble and Membrane Proteins: Methods and Protocols covers the entire range of techniques used in electron crystallography, including protein sample preparation, 2D crystallization, and screening in negative stain over electron cryo-microscopy (cryo-EM) and data processing, as well as modeling of conformational changes. Additional chapters provide perspective on past, present, and future challenges as well as complementary methods. Written for the popular Methods in Molecular BiologyTM series, the work contains the kind of detailed descriptions and implementation advice necessary to ensure successful results. Comprehensive and cutting-edge, Electron Crystallography of Soluble and Membrane Proteins: Methods and Protocols serves laboratories new to the methods as well as state-of-the-art facilities pursuing this exciting area of protein science.

Electron Cyclotron Resonance Ion Sources and ECR Plasmas

by R Geller

Acknowledged as the "founding father" of and world renowned expert on electron cyclotron resonance sources Richard Geller has produced a unique book devoted to the physics and technicalities of electron cyclotron resonance sources. Electron Cyclotron Resonance Ion Sources and ECR Plasmas provides a primer on electron cyclotron phenomena in ion sour

Electron Density: Concepts, Computation and DFT Applications

by Pratim Kumar Chattaraj Debdutta Chakraborty

Discover theoretical, methodological, and applied perspectives on electron density studies and density functional theory Electron density or the single particle density is a 3D function even for a many-electron system. Electron density contains all information regarding the ground state and also about some excited states of an atom or a molecule. All the properties can be written as functionals of electron density, and the energy attains its minimum value for the true density. It has been used as the basis for a quantum chemical computational method called Density Functional Theory, or DFT, which can be used to determine various properties of molecules. DFT brings out a drastic reduction in computational cost due to its reduced dimensionality. Thus, DFT is considered to be the workhorse for modern computational chemistry, physics as well as materials science. Electron Density: Concepts, Computation and DFT Applications offers an introduction to the foundations and applications of electron density studies and analysis. Beginning with an overview of major methodological and conceptual issues in electron density, it analyzes DFT and its major successful applications. The result is a state-of-the-art reference for a vital tool in a range of experimental sciences. Readers will also find: A balance of fundamentals and applications to facilitate use by both theoretical and computational scientists Detailed discussion of topics including the Levy-Perdew-Sahni equation, the Kohn Sham Inversion problem, and more Analysis of DFT applications including the determination of structural, magnetic, and electronic properties Electron Density: Concepts, Computation and DFT Applications is ideal for academic researchers in quantum, theoretical, and computational chemistry and physics.

Electron Density and Bonding in Crystals: Principles, Theory and X-ray Diffraction Experiments in Solid State Physics and Chemistry

by V.G Tsirelson R.P Ozerov

Electron Density and Bonding in Crystals: Principles, Theory and X-Ray Diffraction Experiments in Solid State Physics and Chemistry provides a comprehensive, unified account of the use of diffraction techniques to determine the distribution of electrons in crystals. The book discusses theoretical and practical techniques, the application of electron density studies to chemical bonding, and the determination of the physical properties of condensed matter.The book features the authors' own key contributions to the subject as well a thorough, critical summary of the extensive literature on electron density and bonding. Logically organized, coverage ranges from the theoretical and experimental basis of electron density determination to its impact on investigations of the nature of the chemical bond and its uses in determining electromagnetic and optical properties of crystals. The main text is supplemented by appendices that provide clear, concise guidance on aspects such as systems of units, quantum theory of atomic vibrations, atomic orbitals, and creation and annihilation operators. The result is a valuable compendium of modern knowledge on electron density distributions, making this reference a standard for crystallographers, condensed matter physicists, theoretical chemists, and materials scientists.

Electron Density and Chemical Bonding I

by Dietmar Stalke

D. Stalke, U. Flierler: More than Just Distances from Electron Density Studies.- A.O. Madsen: Modeling and Analysis of Hydrogen Atoms.- B.B. Iversen/J. Overgaard: Charge Density Methods in Hydrogen Bond Studies.- U. Flierler, D. Stalke: Some Main Group Chemical Perceptions in the Light of Experimental Charge Density Investigations.- D. Leusser: Electronic Structure and Chemical Properties of Lithium Organics Seen Through the Glasses of Charge Density.- L. J. Farrugia, P. Macchi: Bond Orders in Metal-Metal Interactions Through Electron Density Analysis.- W. Scherer, V. Herz, Ch. Hauf: On the Nature of β-Agostic Interactions: A Comparison Between the Molecular Orbital and Charge Density Picture.

Electron Diffraction in the Transmission Electron Microscope: Electron Diffraction in the Transmission Electron Microscope

by P.E. Champness

This book is a practical guide to electron diffraction in the transmission electron microscope (TEM). Case studies and examples are used to provide an invaluable introduction to the subject for those new to the technique. The book explains the basic methods used to obtain diffraction patterns with the TEM. The numerous illustrations aid the understanding of the conclusions reached.

Electron Energy Loss Spectroscopy (Microscopy Handbooks)

by R. Brydson

Electron Energy Loss Spectroscopy (EELS) is a high resolution technique used for the analysis of thin samples of material. The technique is used in many modern transmission electron microscopes to characterise materials. This book provides an up-to-date introduction to the principles and applications of EELS. Specific topics covered include, theory of EELS, elemental quantification, EELS fine structure, EELS imaging and advanced techniques.

Electron Energy-Loss Spectroscopy in the Electron Microscope

by R. F. Egerton

Within the last 30 years, electron energy-loss spectroscopy (EELS) has become a standard analytical technique used in the transmission electron microscope to extract chemical and structural information down to the atomic level. In two previous editions, Electron Energy-Loss Spectroscopy in the Electron Microscope has become the standard reference guide to the instrumentation, physics and procedures involved, and the kind of results obtainable. Within the last few years, the commercial availability of lens-aberration correctors and electron-beam monochromators has further increased the spatial and energy resolution of EELS. This thoroughly updated and revised Third Edition incorporates these new developments, as well as advances in electron-scattering theory, spectral and image processing, and recent applications in fields such as nanotechnology. The appendices now contain a listing of inelastic mean free paths and a description of more than 20 MATLAB programs for calculating EELS data.

Electron Flow in Organic Chemistry: A Decision-Based Guide to Organic Mechanisms

by Paul H. Scudder

Electron Flow in Organic Chemistry Teaches students to solve problems in Organic Chemistry using methods of analysis that are valuable and portable to other fields Electron Flow in Organic Chemistry provides a unique decision-based approach that develops a chemical intuition based on a crosschecked analysis process. Assuming only a general background in chemistry, this acclaimed textbook teaches students how to write reasonable reaction mechanisms and use analytical tools to solve both simple and complex problems in organic chemistry. As in previous editions, the author breaks down challenging organic mechanisms into a limited number of core elemental mechanistic processes, the electron flow pathways, to explain all organic reactions—using flow charts as decision maps, energy surfaces as problem space maps, and correlation matrices to display all possible interactions. The third edition features entirely new chapters on crosschecking chemical reactions through good mechanistic thinking and solving spectral analysis problems using organic structure elucidation strategies. This edition also includes more biochemical reaction mechanism examples, additional exercises with answers, expanded discussion of how general chemistry concepts can show that structure determines reactivity, and new appendix covering transition metal organometallics. Emphasizing critical thinking rather than memorization to solve mechanistic problems, this popular textbook: Features new and expanded material throughout, including more flowcharts, correlation matrices, energy surfaces, and algorithms that illustrate key decision-making processes Provides examples from the field of biochemistry of relevance to students in chemistry, biology, and medicine Incorporates principles from computer science and artificial intelligence to teach decision-making processes Contains a general bibliography, quick-reference charts and tables, pathway summaries, a major decisions guide, and other helpful tools Offers material for instructors including a solutions manual, supplemental exercises with detailed answers for each chapter usable as an exam file, and additional online resources Electron Flow in Organic Chemistry: A Decision-Based Guide to Organic Mechanisms, Third Edition, is the perfect primary textbook for advanced undergraduate or beginning graduate courses in organic reaction mechanisms, and an excellent supplement for graduate courses in physical organic chemistry, enzymatic reaction mechanisms, and biochemistry.

Electron Flow in Organic Chemistry

by Paul H. Scudder

Sets forth the analytical tools needed to solve key problems in organic chemistryWith its acclaimed decision-based approach, Electron Flow in Organic Chemistry enables readers to develop the essential critical thinking skills needed to analyze and solve problems in organic chemistry, from the simple to complex. The author breaks down common mechanistic organic processes into their basic units to explain the core electron flow pathways that underlie these processes. Moreover, the text stresses the use of analytical tools such as flow charts, correlation matrices, and energy surfaces to enable readers new to organic chemistry to grasp the fundamentals at a much deeper level.This Second Edition of Electron Flow in Organic Chemistry has been thoroughly revised, reorganized, and streamlined in response to feedback from both students and instructors. Readers will find more flowcharts, correlation matrices, and algorithms that illustrate key decision-making processes step by step. There are new examples from the field of biochemistry, making the text more relevant to a broader range of readers in chemistry, biology, and medicine. This edition also offers three new chapters:Proton transfer and the principles of stabilityImportant reaction archetypesQualitative molecular orbital theory and pericyclic reactionsThe text's appendix features a variety of helpful tools, including a general bibliography, quick-reference charts and tables, pathway summaries, and a major decisions guide.With its emphasis on logical processes rather than memorization to solve mechanistic problems, this text gives readers a solid foundation to approach and solve any problem in organic chemistry.

The Electron Glass

by M. Pollak M. Ortuño A. Frydman

Presenting an up-to-date report on electronic glasses, this book examines experiments and theories for a variety of disordered materials where electrons exhibit glassy properties. Some interesting mathematical models of idealized systems are also discussed. The authors examine problems in this field, highlighting which issues are currently understood and which require further research. Where appropriate, the authors focus on physical arguments over elaborate derivations. The book provides introductory background material on glassy systems, properties of disordered systems and transport properties so it can be understood by researchers in condensed matter physics who are new to this field.

Electron Gun for Gyrotrons (SpringerBriefs in Applied Sciences and Technology)

by Udaybir Singh A. K. Sinha

This book highlights the emission, transmission, and launching of an electron beam. It presents an overview and recent advances in order to enhance knowledge in the field of gyrotron in general and electron gun in particular. The book is presented in seven chapters starting with the introduction and ending with future possible directions in the field of electron beams and gyrotrons.

Electron Holography for Electromagnetic Materials (Springer Series in Materials Science #347)

by Daisuke Shindo Zentaro Akase

This book discusses the direct imaging of electric and magnetic fields of various functional materials using electron holography, providing indispensable information for understanding their electromagnetic properties. In order to clearly demonstrate the principles of this cutting-edge technology, easy-to-understand explanations are accompanied by numerous illustrations and figures throughout the book. The book highlights the dynamic nature of electromagnetic fields in novel materials, as revealed by changing temperature, or applying electric current and magnetic fields. Furthermore, it showcases, as a new development of the technique, the direct observation of accumulation and collective motion of electrons around charged insulators. Clear experimental data on electromagnetic fields and the motions of electrons help the reader understand their importance in materials science and fundamental physics. Seeing is believing!

Electron-Ion-Plasma Modification of a Hypoeutectoid Al-Si Alloy

by Dmitrii Zaguliaev Victor Gromov Sergey Konovalov Yurii Ivanov

Electron-Ion-Plasma Modification of a Hypereutectic Al-Si Alloy details theoretical and experimental research and computer simulation of structural phase transformations in AlSi10Mn2Ni Silumin on different scale levels under electroexplosion alloying, electron beam processing and electron-plasma alloying at the nanolevel in order to create new materials. The authors summarize and analyze more than 10 years of research on the electron-ion-plasma effect on strength properties and structure-phase states’ transformations of hypoeutectic Silumin. Key Features: Details physical and mathematical models of mechanisms of surface layer hardening under conditions of varying energy effects Offers insights into improved strength characteristics of Silumin Explores optimal processing modes for increased strength and improved tribological characteristics This book is a valuable resource to researchers and engineers involved with the modification of light alloy surfaces for the automotive and aeronautical industry.

Electron Lenses for Super-Colliders

by Vladimir D. Shiltsev

This book provides a comprehensive overview of the operating principles and technology of electron lenses in supercolliders. Electron lenses are a novel instrument for high energy particle accelerators, particularly for the energy-frontier superconducting hadron colliders, including the Tevatron, RHIC, LHC and future very large hadron colliders. After reviewing the issues surrounding beam dynamics in supercolliders, the book offers an introduction to the electron lens method and its application. Further chapters describe the technology behind the electron lenses which have recently been proposed, built and employed for compensation of beam-beam effects and for collimation of high-energy high-intensity beams, for compensation of space-charge effects and several other applications in accelerators. The book will be an invaluable resource for those involved in the design, construction and operation of the next generation of hadron colliders.

Electron Localization-Delocalization Matrices (Lecture Notes in Chemistry #112)

by Chérif F. Matta Ronald Cook Paul W. Ayers

This book builds bridges between two yet separated branches of theoretical and mathematical chemistry: Chemical Graph Theory and Electronic Structure Calculations. Although either of the fields have developed their own techniques, problems, methods, and favorite benchmark cases independent from each other, the authors have managed to bring them together by using the localization-delocalization matrix (LDM). The LDM is a novel molecular descriptor that fingerprints a molecule by condensing the complicated electronic information in one, mathematically manageable, object. In this book, the authors introduce the readers to modeling techniques based on LDMs. Their technique offers a high accuracy as well as robust predictive power, often dramatically surpassing the potential of either of the constituting methods on their own. In addition to the comprehensive and accessible introduction to this new field of theoretical chemistry, the authors offer their self-developed software free to download, so that readers can try running their own simulations. The described methods are very general and can easily be implemented for calculating various properties and parameters such as mosquito repelling activity, ionic liquid properties, local aromaticity of ring molecules, log P's, pKa's, LD50, corrosion inhibition activities, and Lewis acidities and basicities – to only name a few. The free downloadable software helps readers automate the analysis of the matrices described in this book and hence facilitates application of the described methodology.

The Electron Mass and Calcium Isotope Shifts

by Florian Köhler-Langes

This thesis presents the first isotope-shift measurement of bound-electron g-factors of highly charged ions and determines the most precise value of the electron mass in atomic mass units, which exceeds the value in the literature by a factor of 13. As the lightest fundamental massive particle, the electron is one of nature’s few central building blocks. A precise knowledge of its intrinsic properties, such as its mass, is mandatory for the most accurate tests in physics - the Quantum Electrodynamics tests that describe one of the four established fundamental interactions in the universe. The underlying measurement principle combines a high-precision measurement of the Larmor-to-cyclotron frequency ratio on a single hydrogen-like carbon ion studied in a Penning trap with very accurate calculations of the so-called bound-electron g-factor. For the isotope-shift measurement, the bound-electron g-factors of two lithium-like calcium isotopes have been measured with relative uncertainties of a few 10^{-10}, constituting an as yet unrivaled level of precision for lithium-like ions.

Electron Microscopy

by John J. Bozzola Lonnie D. Russell

Electron Microscopy covers all of the important aspects of electron microscopy for biologists, including theory of scanning and transmission, specimen preparation, digital imaging and image analysis, laboratory safety and interpretation of images. The text also contains a complete atlas of ultrastructure. The text assumes minimal experience in physics and mathematics and is written so that readers will achieve a basic understanding of underlying principles so that these can be applied in a real laboratory setting.

Electron Microscopy

by John Kuo

This book presents the newest technology in electron microscopy. It comprises two major areas of electron microscopy - transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The volume provides clear, concise instructions on processing biological specimens and includes discussion on the underlying principles of the majority of the processes presented. A notes section enables efficient adaptation and troubleshooting of protocols.

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