Hiroshi Hirai's Books

Weakly Modular Graphs and Nonpositive Curvature

By: Jérémie Chalopin,Victor Chepoi,Hiroshi Hirai,Damian Osajda

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Weakly Modular Graphs and Nonpositive Curvature

By: Jérémie Chalopin,Victor Chepoi,Hiroshi Hirai,Damian Osajda

This article investigates structural, geometrical, and topological characteri-zations and properties of weakly modular graphs and of cell complexes derived from them. The unifying themes of our investigation are various “nonpositive cur-vature” and “local-to-global” properties and characterizations of weakly modular graphs and their subclasses. Weakly modular graphs have been introduced as a far-reaching common generalization of median graphs (and more generally, of mod-ular and orientable modular graphs), Helly graphs, bridged graphs, and dual polar graphs occurring under diﬀerent disguises (1–skeletons, collinearity graphs, covering graphs, domains, etc.) in several seemingly-unrelated ﬁelds of mathematics: * Metric graph theory * Geometric group theory * Incidence geometries and buildings * Theoretical computer science and combinatorial optimization We give a local-to-global characterization of weakly modular graphs and their sub-classes in terms of simple connectedness of associated triangle-square complexes and speciﬁc local combinatorial conditions. In particular, we revisit characterizations of dual polar graphs by Cameron and by Brouwer-Cohen. We also show that (disk-)Helly graphs are precisely the clique-Helly graphs with simply connected clique complexes. With l1–embeddable weakly modular and sweakly modular graphs we associate high-dimensional cell complexes, having several strong topological and geometrical properties (contractibility and the CAT(0) property). Their cells have a speciﬁc structure: they are basis polyhedra of even 􀀁–matroids in the ﬁrst case and orthoscheme complexes of gated dual polar subgraphs in the second case. We resolve some open problems concerning subclasses of weakly modular graphs: we prove a Brady-McCammond conjecture about CAT(0) metric on the orthoscheme.

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American Mathematical Soc.

Published Date

ISBN 10

1470443627

ISBN 13

9781470443627

Japanese Law

By: Hiroshi Oda

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Japanese Law

By: Hiroshi Oda

This book offers an up-to-date and comprehensive reference to Japanese law with a primary focus on private law, including commercial and business-related laws such as corporate law, contract law, and competition law. It also covers a wide range of related topics, such as the protection of human rights, systems of dispute settlement, and criminal law and procedure. Fully updated and revised, this fourth edition expands on the major reforms and substantial changes Japanese law has gone through since the 1990s and analyses the successes and failures of implemented changes in light of developments since the third edition (2009), by referring to new amendments, judgements, and Supreme Court cases. Providing clear guidance and detailed analysis to help demystify Japanese law, this book is an essential reference work for all who have an interest in Japanese law.

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Page Count

512

Publisher

Oxford University Press

Published Date

ISBN 10

0192640798

ISBN 13

9780192640796

Handbook of Optical Fibers and Cables, Second Edition

By: Hiroshi Murata

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Handbook of Optical Fibers and Cables, Second Edition

By: Hiroshi Murata

This work covers the history of optical communications, fibres and fiber cables, and compares optical fibres with other transmission media. It also discusses optical fibre materials, reliability and manufacture, illustrates the design, construction and properties of recent cables used for optical fibre, describes fibre splicing and presents automated fibre splicing machines, and more.

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560

Publisher

CRC Press

Published Date

ISBN 10

1351829963

ISBN 13

9781351829960

Active Lighting and Its Application for Computer Vision

40 Years of History of Active Lighting Techniques

By: Katsushi Ikeuchi,Yasuyuki Matsushita,Ryusuke Sagawa,Hiroshi Kawasaki,Yasuhiro Mukaigawa,Ryo Furukawa,Daisuke Miyazaki

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Active Lighting and Its Application for Computer Vision

40 Years of History of Active Lighting Techniques

By: Katsushi Ikeuchi,Yasuyuki Matsushita,Ryusuke Sagawa,Hiroshi Kawasaki,Yasuhiro Mukaigawa,Ryo Furukawa,Daisuke Miyazaki

This book describes active illumination techniques in computer vision. We can classify computer vision techniques into two classes: passive and active techniques. Passive techniques observe the scene statically and analyse it as is. Active techniques give the scene some actions and try to facilitate the analysis. In particular, active illumination techniques project specific light, for which the characteristics are known beforehand, to a target scene to enable stable and accurate analysis of the scene. Traditional passive techniques have a fundamental limitation. The external world surrounding us is three-dimensional; the image projected on a retina or an imaging device is two-dimensional. That is, reduction of one dimension has occurred. Active illumination techniques compensate for the dimensional reduction by actively controlling the illumination. The demand for reliable vision sensors is rapidly increasing in many application areas, such as robotics and medical image analysis. This book explains this new endeavour to explore the augmentation of reduced dimensions in computer vision. This book consists of three parts: basic concepts, techniques, and applications. The first part explains the basic concepts for understanding active illumination techniques. In particular, the basic concepts of optics are explained so that researchers and engineers outside the field can understand the later chapters. The second part explains currently available active illumination techniques, covering many techniques developed by the authors. The final part shows how such active illumination techniques can be applied to various domains, describing the issue to be overcome by active illumination techniques and the advantages of using these techniques. This book is primarily aimed at 4th year undergraduate and 1st year graduate students, and will also help engineers from fields beyond computer vision to use active illumination techniques. Additionally, the book is suitable as course material for technical seminars.

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Page Count

309

Publisher

Springer Nature

Published Date

ISBN 10

3030565777

ISBN 13

9783030565770

Treatment of Thyroid Tumor

Japanese Clinical Guidelines

By: Hiroshi Takami

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Treatment of Thyroid Tumor

Japanese Clinical Guidelines

By: Hiroshi Takami

Annotation Creating clinical guidelines is a modern trend. Published studies pertaining to a given theme are collected, their credibility evaluated, and then treatment options in the form of evidence-based guidelines are offered. There are a number of guidelines for the treatment of thyroid tumors that have established positions in clinical practice in North America and in Western European countries. In Japan, however, where radioisotope facilities are of limited availability, treatment plans for differentiated thyroid cancer differ considerably from those of America and Europe, and the associated clinical guidelines need modification before they can be adopted. In addition, although thyroid tumor is a common disease in endocrine practice, its management can differ even among specialists. Thus, a Japanese clinical guideline for the treatment of thyroid tumor was desired by many clinicians. As a combination of evidence-based and consensus-based guidelines for the treatment of thyroid tumor, this book offers alternatives to conventional approaches in the West. Ultimately, the authors hope the guideline will lead to the best possible treatment for patients all over the world in the not-distant future.

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Page Count

278

Publisher

Springer Science & Business Media

Published Date

ISBN 10

4431540482

ISBN 13

9784431540489

Wind Resistant Design of Bridges in Japan

Developments and practices

By: Yozo Fujino,Kichiro Kimura,Hiroshi Tanaka

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Wind Resistant Design of Bridges in Japan

Developments and practices

By: Yozo Fujino,Kichiro Kimura,Hiroshi Tanaka

For long-span bridges, wind action is a dominant factor in their safety and serviceability. A large number of long-span bridges have been built in Japan over the past 30 years, and tremendous amounts of research and technical development have been accomplished in wind-resistant design. This book is a compilation of the results of active research and development. Wind-resistant design standards generated in Japan are described in the first few chapters. Then comes information such as design wind speed, structural damping, wind tunnel tests, and analyses, which provide the basis of the design standards. Wind-induced vibrations and their control of girders, towers, cables, and other features are explained with examples of field measurements. Comprehensive listings of Japanese experience in vibration control are also presented. Because achieving particularly dynamic safety against wind is still not an easy task, these data and information will be valuable assets for the wind-engineering and bridge-engineering communities.

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Page Count

264

Publisher

Springer Science & Business Media

Published Date

ISBN 10

4431540458

ISBN 13

9784431540458

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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Page Count

544

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642826024

ISBN 13

9783642826023

Ion Irradiation of Dielectrics for Photonic Applications

By: Feng Chen,Hiroshi Amekura,Yuechen Jia

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Ion Irradiation of Dielectrics for Photonic Applications

By: Feng Chen,Hiroshi Amekura,Yuechen Jia

This book focuses on the fundamentals, technologies and properties of ion irradiation of dielectric materials (e.g. glasses, crystals) with regard to various photonic applications. It introduces readers to diverse ion-beam techniques for the fabrication and modification of micron- or nanoscale photonic structures, including optical waveguides, photonic crystals, and nanoparticle (nano-spheres and nano-rods) systems, and presents state-of-the-art advances in this multi-disciplinary research field, demonstrating the unique capabilities of ion-beam technologies in optical dielectric materials processing. The book discusses in detail the properties of ion-beam processed waveguides, as well as the modification of dielectrics for photonic applications, such as electro-optic modulation, nonlinear frequency conversion, waveguide amplification and lasing. It also explores synthesis and the correlated optical effects of nanoparticles by ion beams, and features examples of successful micro- and nano-photonic devices. Given its breadth of coverage, the book will particularly appeal to readers interested in ion-beam technology, materials science, and integrated optics.

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Page Count

298

Publisher

Springer Nature

Published Date

ISBN 10

981154607X

ISBN 13

9789811546075

Waro Kishi

Buildings and Projects

By: Waro Kishi,Hiroshi Watanabe

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Waro Kishi

Buildings and Projects

By: Waro Kishi,Hiroshi Watanabe

Born 1950, Waro Kisho belongs to the generation of Japanese architects that emerged from Tadao Ando.

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Page Count

138

Publisher

Edition Axel Menges

Published Date

ISBN 10

3932565150

ISBN 13

9783932565151

Nuclear Tsunami

The Japanese Government and America's Role in the Fukushima Disaster

By: Richard Krooth,Morris Edelson,Hiroshi Fukurai

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Nuclear Tsunami

The Japanese Government and America's Role in the Fukushima Disaster

By: Richard Krooth,Morris Edelson,Hiroshi Fukurai

This book begins with the analysis of America’s post-war intelligence operations, propaganda campaigns, and strategic psychological warfare in Japan. Banking on nuclear safety myths, Japan promoted an aggressive policy of locating and building nuclear power plants in depopulated areas suffering from a significant decline of local industries and economies. The Fukushima nuclear disaster substantiated that U.S. propaganda programs left a long lasting legacy in Japan and beyond and created the futile ground for the future nuclear disaster. The book reveals Japan's tripartite organization of the dominating state, media-monopoly, and nuclear-plant oligarchy advancing nuclear proliferation. It details America’s unprecedented pro-nuclear propaganda campaigns; Japan’s secret ambitions to develop its own nuclear bombs; U.S. dumping of reprocessed plutonium on Japan; and the joint U.S.-Nippon propaganda campaigns for "safe" nuclear-power and the current “safe-nuclear particles” myths. The study shows how the bankruptcy of the central state has led to increased burdens on the population in post-nuclear tsunami era, and the ensuing dangerous ionization of the population now reaching into the future.

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Page Count

233

Publisher

Lexington Books

Published Date

ISBN 10

0739195700

ISBN 13

9780739195703

Plant Nucleotide Metabolism

Biosynthesis, Degradation, and Alkaloid Formation

By: Hiroshi Ashihara,Alan Crozier,Iziar A. Ludwig

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Plant Nucleotide Metabolism

Biosynthesis, Degradation, and Alkaloid Formation

By: Hiroshi Ashihara,Alan Crozier,Iziar A. Ludwig

All organisms produce nucleobases, nucleosides, and nucleotides of purines and pyrimidines. However, while there have been a number of texts on nucleotide metabolism in microorganisms and humans, the presence of these phenomena in plant life has gone comparatively unexplored. This ground-breaking new book is the first to focus exclusively on the aspects of purine nucleotide metabolism and function that are particular to plants, making it a unique and essential resource. The authors provide a comprehensive break down of purine nucleotide structures and metabolic pathways, covering all facets of the topic. Furthermore, they explain the role that purine nucleotides can play in plant development, as well as the effects they may have on human health when ingested. Plant Nucleotide Metabolism offers a unique and important resource to all students, researchers, and lecturers working in plant biochemistry, physiology, chemistry, agricultural sciences, nutrition, and associated fields of research.

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Page Count

452

Publisher

John Wiley & Sons

Published Date

ISBN 10

1119476127

ISBN 13

9781119476122

Japan's Modern Divide

The Photographs of Hiroshi Hamaya and Kansuke Yamamoto

By: Hiroshi Hamaya,Kansuke Yamamoto,Kōtarō Iizawa,Ryūichi Kaneko,Jonathan McKean Reynolds

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Japan's Modern Divide

The Photographs of Hiroshi Hamaya and Kansuke Yamamoto

By: Hiroshi Hamaya,Kansuke Yamamoto,Kōtarō Iizawa,Ryūichi Kaneko,Jonathan McKean Reynolds

In the 1930s the history of Japanese photography evolved in two very different directions: one toward documentary photography, the other favoring an experimental, or avant-garde, approach strongly influenced by Western Surrealism. This book explores these two strains of modern Japanese photography through the work of two remarkable figures: Hiroshi Hamaya and Kansuke Yamamoto. Hiroshi Hamaya (1915-1999) was born and raised in Tokyo and, after an initial period of creative experimentation, turned his attention to recording traditional life and culture on the coast of the Sea of Japan. In 1940 he began photographing the New Year's rituals in a remote village, which was published as Yukiguni (Snow country). He went on to record cultural changes in China, political protests in Japan, and landscapes around the world. Kansuke Yamamoto (1914-1987) became fascinated by the innovative approaches in art and literature exemplified by such Western artists as Man Ray, Ren Magritte, and Yves Tanguy. He promoted Surrealist and avant-garde ideas in Japan through his poetry, paintings, sculptures, and photographs. Along with essays by the book's coeditors, Judith Keller and Amanda Maddox, are essays by Kotaro Iizawa, Ryuichi Kaneko, and Jonathan M. Reynolds, life chronologies, and a selection of poems by Yamamoto translated by John Solt. This book, which features more than one hundred images, accompanies an exhibition of the same name on view at the J. Paul Getty Museum from March 26 to August 25, 2013.

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228

Publisher

Getty Publications

Published Date

ISBN 10

1606061321

ISBN 13

9781606061329

The Neurologic Examination

Scientific Basis for Clinical Diagnosis

By: Hiroshi Shibasaki MD, PhD,Mark Hallett MD

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The Neurologic Examination

Scientific Basis for Clinical Diagnosis

By: Hiroshi Shibasaki MD, PhD,Mark Hallett MD

Whereas most book about the neurologic examination are disease and anatomy oriented, The Neurologic Examination: Scientific Basis for Clinical Diagnosis focuses on a pathophysiological approach to the nervous system. The authors emphasize that the scientific interpretation of symptoms obtained from carefully taking the patient's history and noting signs found during physical examination are essential in the diagnosis of neurologic diseases, even if laboratory testing, such as electrophysiology and neuroimaging, are more widely used. This book aims to provide a bridge from the basic sciences such as anatomy, physiology, pharmacology, and molecular biology to the neurologic symptoms. Neurologic examinations provide the foundation for diagnosis, and only after a thorough and expertly executed examination can one begin to incorporate laboratory testing and treatment. The Neurologic Examination: Scientific Basis for Clinical Diagnosis, based on the widely successful Japanese book Diagnosis of Neurological Diseases (Igakushoin, Japan, second edition 2013) by Dr. Shibasaki, hopes to revitalize the use of neurologic examinations before jumping into laboratory testing. Doing so can help cut down on time, patient and physician anxiety, and unnecessary testing expenses. This book is a must-read for all practicing neurologists, residents, and medical students. Key Features Include · The chapters are arranged in order of the actual steps in a neurologic examination; · Highly illustrated with figures and tables indicative of the neurologic signs and symptoms that may appear during the given step; and · 99 discussion boxes are inserted throughout to provide a more in-depth look at particular topics without interrupting the reading flow of the text.

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321

Publisher

Oxford University Press

Published Date

ISBN 10

0190240997

ISBN 13

9780190240998

Pharmacological Research on Traditional Herbal Medicines

By: Wantanabe

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Pharmacological Research on Traditional Herbal Medicines

By: Wantanabe

A concise overview of some of the findings and topics related to the pharmacology and clinical applications of traditional herbal therapeutics. It addresses the current and potential roles for herbal medicine in the context of our evolving health-care systems. Introducing many pharmacological advances made, the work also describes the modern theories and scientific methodologies applied to today's studies on herbal medicines and new drug development.

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Page Count

258

Publisher

CRC Press

Published Date

ISBN 10

1000111326

ISBN 13

9781000111323

Mucosal Vaccines

By: Hiroshi Kiyono

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Mucosal Vaccines

By: Hiroshi Kiyono

This comprehensive, authoritative treatise covers all aspects of mucosal vaccines including their development, mechanisms of action, molecular/cellular aspects, and practical applications. The contributing authors and editors of this one-of-a-kind book are very well known in their respective fields. Mucosal Vaccines is organized in a unique format in which basic, clinical, and practical aspects of the mucosal immune system for vaccine development are described and discussed. This project is endorsed by the Society for Mucosal Immunology. - Provides the latest views on mucosal vaccines - Applies basic principles to the development of new vaccines - Links basic, clinical, and practical aspects of mucosal vaccines to different infectious diseases - Unique and user-friendly organization

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Page Count

501

Publisher

Elsevier

Published Date

ISBN 10

0080537057

ISBN 13

9780080537054

Weakly Modular Graphs and Nonpositive Curvature

By: Jérémie Chalopin,Victor Chepoi,Hiroshi Hirai,Damian Osajda

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Weakly Modular Graphs and Nonpositive Curvature

By: Jérémie Chalopin,Victor Chepoi,Hiroshi Hirai,Damian Osajda

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American Mathematical Soc.

Published Date

ISBN 10

1470443627

ISBN 13

9781470443627

Book's by Hiroshi Hirai

Weakly Modular Graphs and Nonpositive Curvature

Weakly Modular Graphs and Nonpositive Curvature

Japanese Law

Japanese Law

Handbook of Optical Fibers and Cables, Second Edition

Handbook of Optical Fibers and Cables, Second Edition

Active Lighting and Its Application for Computer Vision

Active Lighting and Its Application for Computer Vision

Treatment of Thyroid Tumor

Treatment of Thyroid Tumor

Wind Resistant Design of Bridges in Japan

Wind Resistant Design of Bridges in Japan

Excitonic Processes in Solids

Excitonic Processes in Solids

Ion Irradiation of Dielectrics for Photonic Applications

Ion Irradiation of Dielectrics for Photonic Applications

Waro Kishi

Waro Kishi

Nuclear Tsunami

Nuclear Tsunami

Plant Nucleotide Metabolism

Plant Nucleotide Metabolism

Japan's Modern Divide

Japan's Modern Divide

The Neurologic Examination

The Neurologic Examination

Pharmacological Research on Traditional Herbal Medicines

Pharmacological Research on Traditional Herbal Medicines

Mucosal Vaccines

Mucosal Vaccines

Weakly Modular Graphs and Nonpositive Curvature

Weakly Modular Graphs and Nonpositive Curvature

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