Yabushita (118 resultados)

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Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - The topic of this thesis is catalytic conversion ofnon-food, abundant, and renewable biomass such as cellulose and chitin tochemicals. In biorefinery, chemical transformation of polymers to valuablecompounds has attracted worldwide interest for building sustainable societies.First, the current situation of this hot research area has been summarized wellin the general introduction of the thesis, which helps readers to becomefamiliar with this topic. Next, the author explains high-yielding production ofglucose from cellulose by using an alkali-activated carbon as a catalyst,resulting in a yield of glucose as high as 88%, which is one of the highestyields ever reported. The characterization of carbon materials has indicatedthat weak acid sites on the catalyst promote the reaction, which is markedlydifferent from reported catalytic systems that require strong acids. Inaddition, the first catalytic transformation of chitin with retention of N-acetyl groups has been developed. Thecombination of mechanocatalytic hydrolysis and thermal solvolysis enables theproduction of N-acetylated monomers ingood yields of up to 70%. The catalytic systems demonstrated in this thesis areunique in the fields of both chemistry and chemical engineering, and their highefficiencies can contribute to green and sustainable chemistry in the future.Meanwhile, mechanistic studies based on characterization, thermodynamics,kinetics, and model reactions have also been performed to reveal the roles ofcatalysts during the reactions. The results will be helpful for readers todesign and develop new catalysts and reaction systems.…

Buch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - The topic of this thesis is catalytic conversion ofnon-food, abundant, and renewable biomass such as cellulose and chitin tochemicals. In biorefinery, chemical transformation of polymers to valuablecompounds has attracted worldwide interest for building sustainable societies.First, the current situation of this hot research area has been summarized wellin the general introduction of the thesis, which helps readers to becomefamiliar with this topic. Next, the author explains high-yielding production ofglucose from cellulose by using an alkali-activated carbon as a catalyst,resulting in a yield of glucose as high as 88%, which is one of the highestyields ever reported. The characterization of carbon materials has indicatedthat weak acid sites on the catalyst promote the reaction, which is markedlydifferent from reported catalytic systems that require strong acids. Inaddition, the first catalytic transformation of chitin with retention of N-acetyl groups has been developed. Thecombination of mechanocatalytic hydrolysis and thermal solvolysis enables theproduction of N-acetylated monomers ingood yields of up to 70%. The catalytic systems demonstrated in this thesis areunique in the fields of both chemistry and chemical engineering, and their highefficiencies can contribute to green and sustainable chemistry in the future.Meanwhile, mechanistic studies based on characterization, thermodynamics,kinetics, and model reactions have also been performed to reveal the roles ofcatalysts during the reactions. The results will be helpful for readers todesign and develop new catalysts and reaction systems.…

Hardcover. Condición: Brand New. 178 pages. 9.25x6.25x0.50 inches. In Stock.

Condición: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.…

Condición: Good. Envoi rapide Bon Etat. in4. 1998. Relié avec jacquette. Good.

Tankobon Hardcover. Condición: Brand New. Japanese language. 8.27x5.83x1.42 inches. In Stock.

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Paperback. Condición: New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

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Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - Minor bodies in the Solar System, though representing only a small fraction of the mass in the Solar System, may well play a fundamental role in terrestrial evolution. This book contains investigations of the dynamics and physics of comets, asteroids and meteor streams, and the rather controversial topic of periodic phenomena in the Solar System as signified by geological records, together with several associated developments in celestial dynamics. All these problems are interwoven. This book makes a contribution towards unravelling the nature of the interactions between the Earth and its celestial environment.…

Buch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - This volume presents an exploration of a wide variety of new formal methods from computer science, biology and economics that have been applied to problems in semantics and pragmatics in recent years. Many of the contributions included focus on data from East Asian languages, particularly Japanese and Korean. The collection reflects on a range of new empirical issues that have arisen, including issues related to preference, evidentiality and attention. Separated into several sections, the book presents discussions on: information structure, speech acts and decisions, philosophical themes in semantics and new formal approaches to semantic and pragmatic theory. Its overarching theme is the relation between different kinds of content, from a variety of perspectives. The discussions presented are both theoretically innovative and empirically motivated.…

Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - This volume presents an exploration of a wide variety of new formal methods from computer science, biology and economics that have been applied to problems in semantics and pragmatics in recent years. Many of the contributions included focus on data from East Asian languages, particularly Japanese and Korean. The collection reflects on a range of new empirical issues that have arisen, including issues related to preference, evidentiality and attention. Separated into several sections, the book presents discussions on: information structure, speech acts and decisions, philosophical themes in semantics and new formal approaches to semantic and pragmatic theory. Its overarching theme is the relation between different kinds of content, from a variety of perspectives. The discussions presented are both theoretically innovative and empirically motivated.…