الصفحة 22
الصفحة 22
Fuel Oxygenates
purpose of this series on Environmental Chemistrytherefore, is to present a reasonably uniform view of various aspects of the chemistry of the environment and chemical reactions occurring in the environment. The industrial activities of man have given a new dimension to Envir- mental Chemistry. We have now synthesized and described over ?ve million chemical compounds and chemical industry produces about hundred and ?fty million tons of synthetic chemicals annually. We ship billions of tons of oil per year and through mining operations and other geophysical modi?cations, large quantities of inorganic and organic materials are released from their natural deposits.
Fuel Cells II
The concept to utilize an ion-conducting polymer membrane as a solid po- mer electrolyte offers several advantages regarding the design and operation of an electrochemical cell, as outlined in Volume 215, Chapter 1 (L. Gubler, G.G. Scherer). Essentially, the solvent and/or transport medium, e.g., H O, 2 + for the mobile ionic species, e.g., H for a cation exchange membrane, is taken up by and con?ned into the nano-dimensional morphology of the i- containingdomainsofthepolymer.Asaconsequence, aphaseseparationinto a hydrophilic ion-containing solvent phase and a hydrophobic polymer ba- bone phase establishes. Because of the narrow solid electrolyte gap in these cells, low ohmic losses reducing the overall cell voltage can be achieved, even at highcurrent densities.
Fuel Cells I
The concept to utilize an ion-conducting polymer membrane as a solid po- mer electrolyte offers several advantages regarding the design and operation of an electrochemical cell, as outlined in Volume 215, Chapter 1 (L. Gubler, G.G. Scherer). Essentially, the solvent and/or transport medium, e.g., H O, 2 + for the mobile ionic species, e.g., H for a cation exchange membrane, is taken up by and con?ned into the nano-dimensional morphology of the i- containingdomainsofthepolymer.Asaconsequence, aphaseseparationinto a hydrophilic ion-containing solvent phase and a hydrophobic polymer ba- bone phase establishes. Because of the narrow solid electrolyte gap in these cells, low ohmic losses reducing the overall cell voltage can be achieved, even at highcurrent densities.
Fuel Cells : From Fundamentals to Applications
Fuel Cells: Fundamentals to Applications is a concise source of the basic electrochemical principles and engineering aspects involved in the development and commercialization of fuel cells. It describes the applications and techno-economic assessment of fuel cell technologies along with an in-depth discussion of conventional and novel approaches pursued for generating energy. This book is divided into four parts. Parts I and II explain basic and applied electrochemistry relevant to an understanding of fuel cells. Part III covers engineering and technology aspects and Part IV, applications and economics. The first part covers, in detail, the electrode kinetics and electrocatalysis of charge-transfer reactions, and leading electrochemical technologies with focus on relevance to fuel cells. The second part addresses the governing principles of fuel cells, electrocatalysis of fuel cell reactions and experimental techniques pertinent to fuel cell research and development. The third part is devoted to modeling of fuel cell systems and a thorough discussion of fuels, fuel processing and fuel storage, transmission, and distribution. The final part deals with the status of the fuel cell technologies, their applications and economics.
Fuel cell technologies : State and perspectives ; Proceedings of the NATO advanced research workshop on fuel cell technologies: State and perspectives, Kyiv, Ukraine from 6 to 10 June 2004.
This book has brought together a team of world-renowned experts in all aspects of fuel cell development for both SOFC and PEM in a workshop environment. The workshop held between June 6–10, 2004 was held in the capital city of the Ukraine, Kiev. The reason for the venue was that Ukraine is the third largest resource of zircon sands, a major source of material for the solid oxide fuel cell. Ukraine is looking at undertaking a very large effort in the solid oxide fuel cell arena, and hopes, one day, to be an international player in this market, and this book is an outcome from the workshop. The book focuses on the issues related to fuel cells, particularly the state-of-the-art internationally, the issues that were of particular interest for getting fuel cells fully commercialized, and advances in fuel cell materials and technology. The focus was on all types of fuel cells, but the emphasis was particularly on solid oxide fuel cells (SOFC), due to their importance to the host country. The book is an essential reference to researchers, academics and industrialists interested in up-to-date information on SOFC and PEM development.
Fuel Cell Electronics Packaging
Today's commercial, medical and military electronics are becoming smaller and smaller. At the same time, these devices are packed with more functions and demand more power. This power requirement is currently met almost exclusively by battery power. A fuel cell is like a battery converting chemical energy directly to electricity. The convergence of fuel cell technology and microelectronics is enabling the new design and manufacturing of fuel cells.Fuel Cell Electronics Packaging presents the latest developments in the technology convergence of microelectronics and fuel cells. Using the well established manufacturing methods used in microelectronics packaging, fuel cells can be further fabricated in smaller sizes with higher energy density, at a faster pace and lower cost.
Fuel Additives : Chemistry and technology
The book introduces and summarizes refinery operations to an extent that discussions of fuels in the following chapters become easier to understand. Then follow detailed descriptions of problems that occur for reasons of the ways in which liquid petroleum fuels are transported, stored, and used. In these discussions, their applications to jet fuel, heating oils, gasoline, diesel fuels, and bunker fuels are covered.
Fruit Manufacturing : Scientific Basis, Engineering Properties, and Deteriorative Reactions of Technological Importance
The fruit processing industry is a major global business. While basic principles of fruit processing have shown only minor changes over the last years, major improvements continually occur. More efficient equipment is capable of converting huge quantities of fruits into pulp, juice, dehydrated, frozen and refrigerated products, etc. that make possible the preservation of products for year-round consumption. Fruit processing and storage involve physical and chemical changes that negatively modify fruit quality. The industry’s ability to provide a nutritious and healthful fruit product to the consumer is highly dependent on the knowledge of the quality modifications that occur during the processing.
Frontline and Factory : Comparative Perspectives on the Chemical Industry at War, 1914-1924
This book represents a first considered attempt to study the factors that conditioned industrial chemistry for war in1914-18. Taking a comparative perspective, it reflects on the experience of France, Germany, Austria, Russia, Britain, Italy and Russia, and points to significant similarities and differences. It looks at changing patterns in the organisation of industry, and at the emerging symbiosis between science, industry and the military, which contributed to the first ‘academic-military-industrial’ complex of the 20th century. At the same time, it reflects on the world’s first, and ultimately unsuccessful attempt to monitor ‘dual-use’ chemical technologies, and so restrict the proliferation of an important category of weapons of mass destruction.
Frontiers of Ferroelectricity : A Special Issue of the Journal of Materials Science
The book presents theory, fundamentals and applications of ferroelectricity. It describes the current levels of understanding of various aspects of the subject as presented by authorities in the field. Reviews and research reports cover the spectrum of ferroelectricity. Topics include relaxors, piezoelectrics, microscale and nanoscale studies, polymers and composites, unusual properties, and techniques and devices. The information in this book is intended for physicists, engineers and materials scientists working with ferroelectric materials including ceramics, single crystals, polymers, composites and even some biological materials.
Frontiers in Superconducting Materials
Frontiers in Superconducting Materials gives a state-of-the-art report of the most important topics of the current research in superconductive materials and related phenomena. It comprises 30 chapters written by renowned international experts in the field. It is of central interest to researchers and specialists in Physics and Materials Science, both in academic and industrial research, as well as advanced students. It also addresses electronic and electrical engineers. Even non-specialists interested in superconductivity might find some useful answers.
Frontiers in Quantum Systems in Chemistry and Physics
The basic theory of matter on the nanoscale is quantum mechanics and the application of quantum mechanics to the study of the many-body problem in molecules and materials is a rapidly developing field of research. Frontiers in Quantum Systems in Chemistry and Physics defines the leading edge; hence it describes the new theoretical developments available to a wider audience and presents theories which provide, for example, new insights into the structure of increasing complex molecular systems or molecules in a variety of environments. New computational techniques and practices are accessed, exploiting the wide range of equipment available to the researcher from “leadership” class supercomputers to distributed workstations and the internet.
Frontiers in Materials Research
This book covers recent progress in advanced materials research as reviewed by forefront researchers in contributions which would also be suitable for researchers and postgraduates in a related field. It starts with comprehensive reviews of exotic materials for electronic devices, such as wide gap semiconductors and organic materials. They are followed by recent topics on eco- and bio-friendly materials, which attract more and more attention in the materials research community. Atomic scale characterization and control of nanostructured materials are discussed in later chapters that review the general possibilities for precise control of structures and properties in the developments of advanced materials.
Frontiers in Chemical Sensors : Novel Principles and Techniques
With their similarity to the organs of the most advanced creatures that inhabit the Earth, sensors are regarded as being the “senses of electronics”: arti?cial eyes and ears that are capable of seeing and hearing beyond the range of - man perception; electronic noses and tongues that can recognise odours and ?avours without a lifetime training; touch that is able not only to feel the texture and temperature of the materials but even to discern their chemical compo- tion. Among the world of chemical sensors, optical devices (sometimes termed “optodes”, from the Greek “the optical way”) have reached a prominent place in those areas where the features of light and of the light-matter interaction show their advantage: contactless or long-distance interrogation, detection sensitivity, analyte selectivity, absence of electrical interference or risks, and lack of analyte consumption,
Frontiers in Anti-Infective Drug Discovery ; Vol.9
Covers a range of topics including rational drug design and drug discovery, medicinal chemistry, in-silico drug design, combinatorial chemistry, high-throughput screening, drug targets, recent important patents, and structure-activity relationships. Frontiers in Anti-Infective Drug Discovery is a valuable resource for pharmaceutical scientists and post-graduate students seeking updated and critically important information for developing clinical trials and devising research plans in this field. The ninth volume of this series features 5 reviews that cover some aspects of clinical and pre-clinical antimicrobial drug development, with 2 chapters focusing on drugs to treat leishmaniasis and dengue fever, respectively. - Use of preclinical and early clinical data for accelerating antimicrobial drug development - Post-translational modifications: host defence mechanism, pathogenic weapon, and emerged target of anti-infective drugs - Scope and limitations on the potent antimicrobial activities of hydrazone derivatives - Current scenario of anti-leishmanial drugs and treatment - Dengue hemorrhagic fever: the potential repurposing drugs
From Suns to Life: : A Chronological Approach to the History of Life on Earth
This review emerged from several interdisciplinary meetings and schools gathering a group of astronomers, geologists, biologists, and chemists, attempting to share their specialized knowledge around a common question: how did life emerge on Earth? Their ultimate goal was to provide some kind of answer as a prerequisite to an even more demanding question: is life universal? The main chapters of this review present the formation and evolution of the solar system (3); the building of a habitable planet (4); prebiotic chemistry, biochemistry, and the emergence of life (5); the environmental context of the early Earth (6); and the ancient fossil record and early evolution (7). The concluding chapter (9) provides the highlights of the review and presents the different points of view about the universality of life. Two pedagogical chapters are included; one on chronometers (2), another in the form of a "frieze" (8) which summarizes in graphical form the present state of knowledge about the chronology of the emergence of life on Earth, before the Cambrian explosion.
From herbs to healing : Pharmacognosy - phytochemistry - phytotherapy - biotechnology
Demonstrates the place of phytotherapy in healing, the role of herbs in complementary and traditional therapy, and research strategies for the development of drugs of natural plant origin. This book is primarily designed for scientific researchers, but is also very useful for undergraduate and postgraduate students in their professional training. As this book discusses herbs from all over the world, it is specifically drafted to be useful not only in Hungary and Europe, but also for people in other continents as an English language encyclopaedia of medicinal plants and their biologically active compounds.
From Fossils to Astrobiology : Records of Life on Earth and Search for Extraterrestrial Biosignatures
From Fossils to Astrobiology reviews developments in paleontology and geobiology that relate to the rapidly-developing field of Astrobiology, the study of life in the Universe. Many traditional areas of scientific study, including astronomy, chemistry and planetary science, contribute to Astrobiology, but the study of the record of life on planet Earth is critical in guiding investigations in the rest of the cosmos. In this varied book, expert scientists from 15 countries present peer-reviewed, stimulating reviews of paleontological and astrobiological studies. The overviews of established and emerging techniques for studying modern and ancient microorganisms on Earth and beyond, will be valuable guides to evaluating biosignatures which could be found in the extraterrestrial surface or subsurface within the Solar System and beyond.
Freshwater Microplastics : Emerging Environmental Contaminants?
Focuses on microscopic plastic debris, also referred to as microplastics, which have been detected in aquatic environments around the globe and have accordingly raised serious concerns. The book explores whether microplastics represent emerging contaminants in freshwater systems, an area that remains underrepresented to date.Given the complexity of the issue, the book covers the current state-of-research on microplastics in rivers and lakes, including analytical aspects, environmental concentrations and sources, modelling approaches, interactions with biota, and ecological implications. To provide a broader perspective, the book also discusses lessons learned from nanomaterials and the implications of plastic debris for regulation, politics, economy, and society. In a research field that is rapidly evolving, it offers a solid overview for environmental chemists, engineers, and toxicologists, as well as water managers and policy-makers.
Free-Radical-Induced DNA Damage and Its Repair : A Chemical Perspective
Understanding of the molecular basis of DNA damage and its repair has increased dramatically in recent years, and substantial knowledge now exists concerning the products arising from free-radical attack on DNA. Free-radical DNA damage may lead to mutations, cancer, and cell death. Free radicals have various sources, notably ionizing radiation and oxidative stress. In radiotherapy for cancer and with some anticancer drugs, use is made of cell death by excessive DNA damage. The mechanisms leading to products of free-radical attack which have been studied in models and with small double-stranded DNA fragments are discussed in detail, and the basics of the underlying free-radical chemistry are dealt with in separate chapters.
