Koichi Ohno's Books

Power System Transients

Theory and Applications, Second Edition

By: Akihiro Ametani,Naoto Nagaoka,Yoshihiro Baba,Teruo Ohno,Koichi Yamabuki

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Power System Transients

Theory and Applications, Second Edition

By: Akihiro Ametani,Naoto Nagaoka,Yoshihiro Baba,Teruo Ohno,Koichi Yamabuki

This new edition covers a wide area from transients in power systems—including the basic theory, analytical calculations, EMTP simulations, computations by numerical electromagnetic analysis methods, and field test results—to electromagnetic disturbances in the field on EMC and control engineering. Not only does it show how a transient on a single-phase line can be explained from a physical viewpoint, but it then explains how it can be solved analytically by an electric circuit theory. Approximate formulas, which can be calculated by a pocket calculator, are presented so that a transient can be analytically evaluated by a simple hand calculation. Since a real power line is three-phase, this book includes a theory that deals with a multi-phase line for practical application. In addition, methods for tackling a real transient in a power system are introduced. This new edition contains three completely revised and updated chapters, as well as two new chapters on grounding and numerical methods.

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Page Count

540

Publisher

CRC Press

Published Date

ISBN 10

1315349434

ISBN 13

9781315349435

Exploration on Quantum Chemical Potential Energy Surfaces

Towards the Discovery of New Chemistry

By: Koichi Ohno,Hiroko Satoh

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Exploration on Quantum Chemical Potential Energy Surfaces

Towards the Discovery of New Chemistry

By: Koichi Ohno,Hiroko Satoh

Written chemical formulas, such as C2H6O, can tell us the constituent atoms a molecule contains but they cannot differentiate between the possible geometrical arrangements (isomers) of these models. Yet the chemical properties of different isomers can vary hugely. Therefore, to understand the world of chemistry we need to ask what kind of isomers can be produced from a given atomic composition, how are isomers converted into each other, how do they decompose into smaller pieces, and how can they be made from smaller pieces? The answers to these questions will help us to discover new chemistry and new molecules. A potential energy surface (PES) describes a system, such as a molecule, based on geometrical parameters. The mathematical properties of the PES can be used to calculate probable isomer structures as well as how they are formed and how they might behave. Exploration on Quantum Chemical Potential Energy Surfaces focuses on the PES search based on quantum chemical calculations. It describes how to explore the chemical world on PES, discusses fundamental methods and specific techniques developed for efficient exploration on PES, and demonstrates several examples of the PES search for chemical structures and reaction routes.

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255

Publisher

Royal Society of Chemistry

Published Date

ISBN 10

1839167750

ISBN 13

9781839167751

Elastoplasticity Theory

By: Koichi Hashiguchi

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Elastoplasticity Theory

By: Koichi Hashiguchi

This book was written to serve as the standard textbook of elastoplasticity for students, engineers and researchers in the field of applied mechanics. The present second edition is improved thoroughly from the first edition by selecting the standard theories from various formulations and models, which are required to study the essentials of elastoplasticity steadily and effectively and will remain universally in the history of elastoplasticity. It opens with an explanation of vector-tensor analysis and continuum mechanics as a foundation to study elastoplasticity theory, extending over various strain and stress tensors and their rates. Subsequently, constitutive equations of elastoplastic and viscoplastic deformations for monotonic, cyclic and non-proportional loading behavior in a general rate and their applications to metals and soils are described in detail, and constitutive equations of friction behavior between solids and its application to the prediction of stick-slip phenomena are delineated. In addition, the return-mapping algorithm, the consistent tangent operators and the objective time-integration algorithm of rate tensor are explained in order to enforce the FEM analyses. All the derivation processes and formulations of equations are described in detail without an abbreviation throughout the book. The distinguishable features and importance of this book is the comprehensive description of fundamental concepts and formulations including the objectivity of tensor and constitutive equations, the objective time-derivative of tensor functions, the associated flow rule, the loading criterion, the continuity and smoothness conditions and their substantial physical interpretations in addition to the wide classes of reversible/irreversible constitutive equations of solids and friction behavior between solids.

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466

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642358497

ISBN 13

9783642358494

Foundations of Elastoplasticity: Subloading Surface Model

By: Koichi Hashiguchi

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Foundations of Elastoplasticity: Subloading Surface Model

By: Koichi Hashiguchi

This book is the standard text book for elastoplasticity/viscoplasticity which is explained comprehensively covering the rate-independent to -dependent finite deformations of metals, soils, polymers, crystal plasticity, etc. and the friction phenomenon. Concise explanations on vector-tensor analysis and continuum mechanics are provided first, covering the underlying physical concepts, e.g. various time-derivatives, pull-back and push-forward operations, work-conjugacy and multiplicative decomposition of deformation gradient tensor. Then, the rigorous elastoplastic/viscoplastic model, called the subloading surface model, is explained comprehensively, which is based on the subloading surface concept to describe the continuous development of the plastic/viscoplastic strain rate as the stress approaches to the yield surface, while it can never be described by the other plasticity models, e.g. the Chaboche-Ohno and the Dafalias-Yoshida models assuming the purely-elastic domain. The main features of the subloading surface model are as follows: 1) The subloading surface concept underling the cyclic plasticity is introduced, which insists that the plastic deformation develops as the stress approaches the yield surface. Thus, the smooth elastic-plastic transition leading to the continuous variation of the tangent stiffness modulus is described always. 2) The subloading-overstress model is formulated by which the elastoplastic deformation during the quasi-static loading and the viscoplastic deformation during the dynamic and impact loading can be described by the unified equation. Then, only this model can be used to describe the deformation in the general rate of deformation, disusing the elastoplastic constitutive equation. 3) The hyperelastic-based (visco)plasticity based on the multiplicative decomposition of deformation gradient tensor and the subloading surface model is formulated for the exact descriptions of the finite elastic and (visco)plastic deformations. 4) The subloading-friction model is formulated for the exact description of the dry and the fluid (lubricated) frictions at the general rate of sliding from the static to the impact sliding. Thus, all the elastic and inelastic deformation/sliding phenomena of solids can be described accurately in the unified equation by the subloading-overstress model. The subloading surface model will be engraved as the governing law of irreversible deformation of solids in the history of solid mechanics.

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Page Count

850

Publisher

Springer Nature

Published Date

ISBN 10

3030931382

ISBN 13

9783030931384

Nonlinear Continuum Mechanics for Finite Elasticity-Plasticity

Multiplicative Decomposition with Subloading Surface Model

By: Koichi Hashiguchi

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Nonlinear Continuum Mechanics for Finite Elasticity-Plasticity

Multiplicative Decomposition with Subloading Surface Model

By: Koichi Hashiguchi

Nonlinear Continuum Mechanics for Finite Elasticity-Plasticity empowers readers to fully understand the constitutive equation of finite strain, an essential piece in assessing the deformation/strength of materials and safety of structures. The book starts by providing a foundational overview of continuum mechanics, elasticity and plasticity, then segues into more sophisticated topics such as multiplicative decomposition of deformation gradient tensor with the isoclinic concept and the underlying subloading surface concept. The subloading surface concept insists that the plastic strain rate is not induced suddenly at the moment when the stress reaches the yield surface but it develops continuously as the stress approaches the yield surface, which is crucially important for the precise description of cyclic loading behavior. Then, the exact formulations of the elastoplastic and viscoplastic constitutive equations based on the multiplicative decomposition are expounded in great detail. The book concludes with examples of these concepts and modeling techniques being deployed in real-world applications. Table of Contents: 1. Mathematical Basics 2. General (Curvilinear) Coordinate System 3. Description of Deformation/Rotation in Convected Coordinate System 4. Deformation/Rotation (Rate) Tensors 5. Conservation Laws and Stress Tensors 6. Hyperelastic Equations 7. Development of Elastoplastic Constitutive Equations 8. Multiplicative Decomposition of Deformation Gradient Tensor 9. Multiplicative Hyperelastic-based Plastic and Viscoplastic Constitutive Equations 10. Friction Model: Finite Sliding Theory - Covers both the fundamentals of continuum mechanics and elastoplasticity while also introducing readers to more advanced topics such as the subloading surface model and the multiplicative decomposition among others - Approaches finite elastoplasticity and viscoplasticty theory based on multiplicative decomposition and the subloading surface model - Provides a thorough introduction to the general tensor formulation details for the embedded curvilinear coordinate system and the multiplicative decomposition of the deformation gradient

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Page Count

425

Publisher

Elsevier

Published Date

ISBN 10

0128194294

ISBN 13

9780128194294

Amorphous Semiconductors

By: Sándor Kugler,Koichi Shimakawa

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Amorphous Semiconductors

By: Sándor Kugler,Koichi Shimakawa

Understanding the structural unit of crystalline solids is vital in determining their optical and electronic properties. However, the disordered nature of amorphous semiconductors, where no long-range order is retained, makes it difficult to determine their structure using traditional methods. This book shows how computer modelling can be used to overcome the difficulties that arise in the atomic scale identification of amorphous semiconductors. The book explains how to generate a random structure using computer modelling, providing readers with the techniques to construct realistic material structures. It shows how the optical and electronic properties are related to random structures. Readers will be able to understand the characteristic features of disordered semiconductors. The structural and electronic modifications by photon irradiation are also discussed in detail. This book is ideal for both physicists and engineers working in solid state physics, semiconductor engineering and electrical engineering.

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161

Publisher

Cambridge University Press

Published Date

ISBN 10

1139916149

ISBN 13

9781139916141

Excitonic Processes in Solids

By: Masayasu Ueta,Hiroshi Kanzaki,Koichi Kobayashi,Yutaka Toyozawa,Eiichi Hanamura

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Excitonic Processes in Solids

By: Masayasu Ueta,Hiroshi Kanzaki,Koichi Kobayashi,Yutaka Toyozawa,Eiichi Hanamura

An exciton is an electronic excitation wave consisting of an electron-hole pair which propagates in a nonmetallic solid. Since the pioneering research of Fren kel, Wannier and the Pohl group in the 1930s, a large number of experimental and theoretical studies have been made. Due to these investigations the exciton is now a well-established concept and the electronic structure has been clarified in great detail. The next subjects for investigation are, naturally, dynamical processes of excitons such as excitation, relaxation, annihilation and molecule formation and, in fact, many interesting phenomena have been disclosed by recent works. These excitonic processes have been recognized to be quite important in solid-state physics because they involve a number of basic interactions between excitons and other elementary excitations. It is the aim of this quasi monograph to describe these excitonic processes from both theoretical and experimental points of view. we take a few To discuss and illustrate the excitonic processes in solids, important and well-investigated insulating crystals as playgrounds for excitons on which they play in a manner characteristic of each material. The selection of the materials is made in such a way that they possess some unique properties of excitonic processes and are adequate to cover important interactions in which excitons are involved. In each material, excitonic processes are described in detail from the experimental side in order to show the whole story of excitons in a particular material.

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544

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642826024

ISBN 13

9783642826023

Visual Servoing

By: Koichi Hashimoto

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Visual Servoing

By: Koichi Hashimoto

This book treats visual feedback control of mechanical systems, mostly robot manipulators. It not only deals with image processing techniques and robot control schemes but also covers the latest investigation of the design of the visual servo mechanism based on modern linear and nonlinear control theory, the adaptive control scheme, fuzzy logic, and neural networks. New concepts for utilizing visual sensory information for real-time manipulator control are derived and the performances are evaluated through simulations and/or experiments.The contributors to this book are robotics specialists from all over the world. The book gives a practical perspective on visual servoing to researchers, engineers, and students working in this area.

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378

Publisher

World Scientific

Published Date

ISBN 10

9810246064

ISBN 13

9789810246068

Green Process of Three-Component Prostaglandin Synthesis and Rapid 11C Labelings for Short-Lived PET Tracers

By: Masaaki Suzuki,Hiroko Koyama,Hideki Ishii,Koichi Kato,Margareta Ögren,Hisashi Doi

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Green Process of Three-Component Prostaglandin Synthesis and Rapid 11C Labelings for Short-Lived PET Tracers

By: Masaaki Suzuki,Hiroko Koyama,Hideki Ishii,Koichi Kato,Margareta Ögren,Hisashi Doi

This book is devoted to highly polished and potentiated novel C couplings developed by our group (M. Suzuki) in the course of a long-term, tight collaboration of chemistry, biology, and medicine experts, focusing on advanced organometallic techniques for the construction of a whole prostaglandin (PG) framework and new methodology for introducing short-lived 11C radionuclide into carbon frameworks. The book is written to attract the interest of scientists working in chemistry and interdisciplinary research areas such as medicinal chemistry, radiochemistry, chemical biology, molecular imaging, and related industries.

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BoD – Books on Demand

Published Date

ISBN 10

9535137646

ISBN 13

9789535137641

Amorphous Chalcogenide Semiconductors and Related Materials

By: Keiji Tanaka,Koichi Shimakawa

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Amorphous Chalcogenide Semiconductors and Related Materials

By: Keiji Tanaka,Koichi Shimakawa

This book provides introductory, comprehensive, and concise descriptions of amorphous chalcogenide semiconductors and related materials. It includes comparative portraits of the chalcogenide and related materials including amorphous hydrogenated Si, oxide and halide glasses, and organic polymers. It also describes effects of non-equilibrium disorder, in comparison with those in crystalline semiconductors.

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Page Count

300

Publisher

Springer Nature

Published Date

ISBN 10

3030695980

ISBN 13

9783030695989

Amorphous Semiconductors

Structural, Optical, and Electronic Properties

By: Kazuo Morigaki,Sandor Kugler,Koichi Shimakawa

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Amorphous Semiconductors

Structural, Optical, and Electronic Properties

By: Kazuo Morigaki,Sandor Kugler,Koichi Shimakawa

Amorphous semiconductors are subtances in the amorphous solid state that have the properties of a semiconductor and which are either covalent or tetrahedrally bonded amorphous semiconductors or chelcogenide glasses. Developed from both a theoretical and experimental viewpoint Deals with, amongst others, preparation techniques, structural, optical and electronic properties, and light induced phenomena Explores different types of amorphous semiconductors including amorphous silicon, amorphous semiconducting oxides and chalcogenide glasses Applications include solar cells, thin film transistors, sensors, optical memory devices and flat screen devices including televisions

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Page Count

286

Publisher

John Wiley & Sons

Published Date

ISBN 10

1118757920

ISBN 13

9781118757925

Logic Programming '88

Proceedings of the 7th Conference, Tokyo, Japan, April 11-14, 1988

By: Koichi Furukawa,Hozumi Tanaka

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Logic Programming '88

Proceedings of the 7th Conference, Tokyo, Japan, April 11-14, 1988

By: Koichi Furukawa,Hozumi Tanaka

This volume contains a selection of papers presented at the Seventh Logic Programming Conference that took place in Tokyo, April 11-14, 1988. It is the successor to the previous conference proceedings published as Lecture Notes in Computer Science Volumes 221, 264 and 315. The book covers various aspects of logic programming such as foundations, programming languages/systems, concurrent programming, knowledge bases, applications of computer-aided reasoning and natural language processing. The papers on foundations present theoretical results on "narrowing", a proof strategy for proving properties of Prolog programs based on inductionless induction and several issues in nonmonotonic reasoning. Of special interest to mathematicians is the paper on computer-aided reasoning, which describes a system for assisting human reasoning. Natural language application papers treat the lexical analysis of Japanese sentences, a system that generates a summary of a given sentence and a new knowledge representation formalism suited for representing dynamic behavior by extending the frame system.

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Page Count

268

Publisher

Springer Science & Business Media

Published Date

ISBN 10

354051564X

ISBN 13

9783540515647

Exploration on Quantum Chemical Potential Energy Surfaces

Towards the Discovery of New Chemistry

By: Koichi Ohno,Hiroko Satoh

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Exploration on Quantum Chemical Potential Energy Surfaces

Towards the Discovery of New Chemistry

By: Koichi Ohno,Hiroko Satoh

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Page Count

255

Publisher

Royal Society of Chemistry

Published Date

ISBN 10

1839167750

ISBN 13

9781839167751

Power System Transients

Theory and Applications, Second Edition

By: Akihiro Ametani,Naoto Nagaoka,Yoshihiro Baba,Teruo Ohno,Koichi Yamabuki

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Power System Transients

Theory and Applications, Second Edition

By: Akihiro Ametani,Naoto Nagaoka,Yoshihiro Baba,Teruo Ohno,Koichi Yamabuki

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Page Count

600

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CRC Press

Published Date

ISBN 10

1498782388

ISBN 13

9781498782388

Book's by Koichi Ohno

Power System Transients

Power System Transients

Exploration on Quantum Chemical Potential Energy Surfaces

Exploration on Quantum Chemical Potential Energy Surfaces

Elastoplasticity Theory

Elastoplasticity Theory

Foundations of Elastoplasticity: Subloading Surface Model

Foundations of Elastoplasticity: Subloading Surface Model

Nonlinear Continuum Mechanics for Finite Elasticity-Plasticity

Nonlinear Continuum Mechanics for Finite Elasticity-Plasticity

Amorphous Semiconductors

Amorphous Semiconductors

Excitonic Processes in Solids

Excitonic Processes in Solids

Visual Servoing

Visual Servoing

Green Process of Three-Component Prostaglandin Synthesis and Rapid 11C Labelings for Short-Lived PET Tracers

Green Process of Three-Component Prostaglandin Synthesis and Rapid 11C Labelings for Short-Lived PET Tracers

Amorphous Chalcogenide Semiconductors and Related Materials

Amorphous Chalcogenide Semiconductors and Related Materials

Amorphous Semiconductors

Amorphous Semiconductors

Logic Programming '88

Logic Programming '88

Exploration on Quantum Chemical Potential Energy Surfaces

Exploration on Quantum Chemical Potential Energy Surfaces

Power System Transients

Power System Transients

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