Vitamin C

Vitamin C

Author: M B Davies

Publisher: Royal Society of Chemistry

Published: 2007-10-31

Total Pages: 174

ISBN-13: 1847552307

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Vitamin C is the first book to cover the history, chemistry, biochemistry, and medical importance of vitamin C and is the first to provide an in-depth, interdisciplinary study of this essential and fascinating compound. The book provides a comprehensive and systematic account of the vitamin C story, fully surveying the history of scurvy and how its cure led to the suggestion, discovery, and isolation of the vitamin, later named L-ascorbic acid. It describes in detail the vitamin's structure determination, synthesis and manufacture, and its oxidation products, derivatives and related compounds. Its key biochemical roles are fully categorized and explained, and the medical importance of the vitamin, including the recent use of so-called megadoses, is thoroughly discussed. Vitamin C will be of interest to a very wide readership and will provide useful background information and inspiration for students at various levels. It will also be relevant to the interested chemist or lay person, as well as those carrying out research in this area.


Nanoscience

Nanoscience

Author: Claire Dupas

Publisher: Springer Science & Business Media

Published: 2007-02-13

Total Pages: 840

ISBN-13: 3540286179

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This practically-oriented overview of nanotechnologies and nanosciences is designed to provide students and researchers with essential information on both the tools of manufacture and specific features of the nanometric scale. Specific applications and techniques covered include nanolithography, STM and AFM, nanowires and supramolecules, molecular electronics, pptronics, and simulation. Each section devotes space to industrial applications and prospective developments. The book provides the only pedagogical review on major nanosciences topics at this level.


Nanoporous Materials: Science And Engineering

Nanoporous Materials: Science And Engineering

Author: G Q Max Lu

Publisher: World Scientific

Published: 2004-11-22

Total Pages: 911

ISBN-13: 178326179X

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Porous materials are of scientific and technological importance because of the presence of voids of controllable dimensions at the atomic, molecular, and nanometer scales, enabling them to discriminate and interact with molecules and clusters. Interestingly the big deal about this class of materials is about the “nothingness” within — the pore space. International Union of Pure and Applied Chemistry (IUPAC) classifies porous materials into three categories — micropores of less than 2 nm in diameter, mesopores between 2 and 50 nm, and macropores of greater than 50 nm. In this book, nanoporous materials are defined as those porous materials with pore diameters less than 100 nm.Over the last decade, there has been an ever increasing interest and research effort in the synthesis, characterization, functionalization, molecular modeling and design of nanoporous materials. The main challenges in research include the fundamental understanding of structure-property relations and tailor-design of nanostructures for specific properties and applications. Research efforts in this field have been driven by the rapid growing emerging applications such as biosensor, drug delivery, gas separation, energy storage and fuel cell technology, nanocatalysis and photonics. These applications offer exciting new opportunities for scientists to develop new strategies and techniques for the synthesis and applications of these materials.This book provides a series of systematic reviews of the recent developments in nanoporous materials. It covers the following topics: (1) synthesis, processing, characterization and property evaluation; (2) functionalization by physical and/or chemical treatments; (3) experimental and computational studies on fundamental properties, such as catalytic effects, transport and adsorption, molecular sieving and biosorption; (4) applications, including photonic devices, catalysis, environmental pollution control, biological molecules separation and isolation, sensors, membranes, hydrogen and energy storage, etc./a


Nanoporous Materials II

Nanoporous Materials II

Author: T.J. Pinnavaia

Publisher: Elsevier

Published: 2000-04-14

Total Pages: 915

ISBN-13: 008053726X

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The first symposium on Access in Nanoporous Materials was held in Lansing, Michigan on June 7-9, 1995. The five years that have passed since that initial meeting have brought remarkable advances in all aspects of this growing family of materials. In particular, impressive progress has been achieved in the area of novel self-assembled mesoporous materials, their synthesis, characterization and applications. The supramolecular self-assembly of various inorganic and organic species into ordered mesostructures became a powerful method for synthesis of mesoporous molecular sieves of tailored framework composition, pore structure, pore size and desired surface functionality for advanced applications in such areas as separation, adsorption, catalysis, environmental cleanup and nanotechnology.In addition to mesostructured metal oxide molecular sieves prepared through supramolecular assembly pathways, clays, carbon molecular sieves, porous polymers, sol-gel and imprinted materials, as well as self-assembled organic and other zeolite-like materials, have captured the attention of materials researchers around the globe.The contents of the current volume present a sampling of more than 150 oral and poster papers delivered at the Symposium on Access in Nanoporous Materials II held in Banff, Alberta on May 25-30, 2000. About 70% of the papers are devoted to the synthesis of siliceous mesoporous molecular sieves, their modification, characterization and applications, which represent the current research trend in nanoporous materials. The remaining contributions provide some indications on the future developments in the area of non-siliceous molecular sieves and related materials. This book reflects the current trends and advances in this area, which will certainly attract the attention of materials chemists in the 21st century.


Computational Continuum Mechanics

Computational Continuum Mechanics

Author: Ahmed A. Shabana

Publisher: Cambridge University Press

Published: 2011-12-12

Total Pages: 341

ISBN-13: 1139505424

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This second edition presents the theory of continuum mechanics using computational methods. The text covers a broad range of topics including general problems of large rotation and large deformations and the development and limitations of finite element formulations in solving such problems. Dr Shabana introduces theories on motion kinematics, strain, forces and stresses and goes on to discuss linear and nonlinear constitutive equations, including viscoelastic and plastic constitutive models. General nonlinear continuum mechanics theory is used to develop small and large finite element formulations which correctly describe rigid body motion for use in engineering applications. This second edition features a new chapter that focuses on computational geometry and finite element analysis. This book is ideal for graduate and undergraduate students, professionals and researchers who are interested in continuum mechanics.


Termodinámica básica para ingenieros

Termodinámica básica para ingenieros

Author: Jimmy Germán Hidalgo Estrella

Publisher: Ediciones de la U

Published: 2021-02-05

Total Pages: 194

ISBN-13: 9587920503

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Este libro de Termodinámica básica para ingenieros, se desarrolla de la siguiente manera: el capítulo 1 presentará los conceptos generales, es decir el estudiante podrá conocer acerca de los principios básicos y leyes de la termodinámica y acercarse a los tipos de propiedades que caracterizan las sustancias contenidas en los diferentes tipos de sistemas, como también a los procesos que experimentan estas sustancias. El capítulo 2 se dedicará a estudiar los efectos de la presión y la temperatura sobre las sustancias y los enunciados que rigen estos efectos. Trabajo, calor y potencia como manifestaciones de la transformación de la energía resultado de la interacción entre el sistema y los alrededores se estudiará en el capítulo 3. El análisis del comportamiento termodinámico de los gases ideales contenidos en sistemas cerrados se estudiará en el capítulo 4. El capítulo 5 se dedicará a estudiar las propiedades termodinámicas de las sustancias puras. En el capítulo 6 se hablará sobre la conservación de la energía para sistemas abiertos o volúmenes de control, en él se presentarán algunas aplicaciones en ingeniería. En el capítulo 7 se encuentran los principios de la conservación de la energía en máquinas térmicas. Finalmente se estudiará en el capítulo 8 las razones por las cuales es necesario pagar tributo en la producción del trabajo, dado que la polución ambiental es entropía y el desorden en la naturaleza es el resultado del crecimiento entrópico en ella como sistema.


Nanoreactor Engineering for Life Sciences and Medicine

Nanoreactor Engineering for Life Sciences and Medicine

Author: Agnes Ostafin

Publisher: Artech House

Published: 2008

Total Pages: 294

ISBN-13: 1596931590

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This trail-blazing volume covers nanoreactor essentials, including a review of synthetic procedures and materials used to develop various nanoreactor configurations. It explores nanoreactor theory and design, highlighting the fundamental differences between molecular events in macroscale and nanoscale reactors.