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Elsevier

Elsevier Science

  • Aqueous Size-Exclusion Chromatography

    • 1st Edition
    • Volume 40
    • P.L. Dubin
    • English
    The rapid development of new packings for aqueous size-exclusion chromatography has revolutionized this field. High resolution non-adsorptive columns now make possible the efficient separation of proteins and the rapid and precise determination of the molecular weight distribution of synthetic polymers. This technology is also being applied to the separation of small ions, the characterization of associating systems, and the measurement of branching. At the same time, fundamental studies are elucidating the mechanisms of the various chromatographicproce... developments in principles and applications are assembled for the first time in this book. Fundamental issues are dealt with: the roles of pore structure and macromolecular dimensions, hydrophobic and electrostatic effects, and the determination and control of column efficiency. High-performance packings based on derivatized silica are reviewed in detail. Special techniques are thoroughly described, including SEC/LALLS, inverse exclusion chromatography, and frontal zone chromatography. Attention is focussed on special applications of size-exclusion methods, such as the characterization of micelles, separations of inorganic ions, and Hummel-Dreyer and related methods for equilibrium systems. Protein chromatography is dealt with in both dedicated sections and throughout the book as a whole.This is a particularly comprehensive and authoritative work - all the contributions review broad topics of general significance and the authors are of high repute. The material will be of special value for the characterization of synthetic water-soluble polymers, especially polyelectrolytes. Biochemists will find fundamental and practical guidance on protein separations. Researchers confronted with solutes that exhibit complex chromatographic behavior, such as humic acids, aggregating proteins, and micelles should find the contents of this volume illuminating.

  • Catalysis 1987

    • 1st Edition
    • Volume 38
    • J.W. Ward
    • English
    Almost all aspects of heterogeneous catalysis are covered in this proceedings volume: papers on surface science and modern spectroscopic techniques provide a particularly extensive coverage of catalyst characterization, while other papers update the broader area of major types of catalysts, such as oxides, sulfides, supported metals and zeolites as well as presenting new developments.Major catalytic reactions are covered including those involving carbon monoxide hydrogenation, emission control and hydrotreating. The current important area of octane enhancement catalysts and processes and important industrial concepts in hydrotreating are dealt with, including new aspects of shape-selective catalysis. The applied engineering topics of reactions engineering and catalyst deactivation are also updated. New concepts in theoretical catalysis are presented and several new homogeneous catalyst systems are reported.The book concludes with four illuminating papers on the future reactions of catalysis as applied to energy processing, chemicals production and, in particular, to biocatalysis on a large scale.Many of the contributors are leaders in their fields and, with almost 1,000 pages and 85 papers, this book provides an enormous amount of information which will be extremely valuable to catalyst and related practitioner, whether fundamentalists or highly applied, who wish to evaluate current findings in their fields.

  • Physics of Solid Surfaces 1987

    • 1st Edition
    • Volume 40
    • J. Koukal
    • English
    The Fourth Symposium on Surface Physics was held to summarize important new developments in theoretical and experimental studies of solid surfaces. In recent years, the physical and chemical properties of surfaces and interfaces have been extensively investigated. This meeting was mainly devoted to the crystallographic and electron structure aspects of surface physics, and to a detailed understanding of the electronic, structural and magnetic properties of clean surfaces, and adsorbed aggregates on surfaces and interfaces. New and newly-refined techniques were presented and discussed.This proceedings volume comprises three main parts: the first contains the invited lectures indicating the main topics of the meeting; the second and third parts summarize the oral papers and posters in a more condensed form.

  • Small-Scale Turbulence and Mixing in the Ocean

    • 1st Edition
    • Volume 46
    • J.C.J. Nihoul + 1 more
    • English
    This volume contains the proceedings of the 19th International Liège Colloquium on Ocean Hydrodynamics, the programme of which focused on the relationships between small-scale mixing and large-scale features, transports and processes. The presentation of papers on various methods of parameterization of small-scale turbulent mixing for numerical ocean models was particularly encouraged and this resulted in more than a third of the papers presented at the Colloquium dealing in one way or another with the parameterization problems; many of these papers demonstrate the direct results of modelling. These proportions are well reflected in this volume of proceedings and thus emphasize once more the importance of small-scale turbulence research for such vital practical applications as ocean modelling and forecasting.

  • Theory of Difference Equations Numerical Methods and Applications by V Lakshmikantham and D Trigiante

    • 1st Edition
    • Volume 181
    • Lakshmikantham + 1 more
    • English
    In this book, we study theoretical and practical aspects of computing methods for mathematical modelling of nonlinear systems. A number of computing techniques are considered, such as methods of operator approximation with any given accuracy; operator interpolation techniques including a non-Lagrange interpolation; methods of system representation subject to constraints associated with concepts of causality, memory and stationarity; methods of system representation with an accuracy that is the best within a given class of models; methods of covariance matrix estimation;methods for low-rank matrix approximations; hybrid methods based on a combination of iterative procedures and best operator approximation; andmethods for information compression and filtering under condition that a filter model should satisfy restrictions associated with causality and different types of memory.As a result, the book represents a blend of new methods in general computational analysis,and specific, but also generic, techniques for study of systems theory ant its particularbranches, such as optimal filtering and information compression.

  • Characterization of Porous Solids

    • 1st Edition
    • Volume 39
    • H. Kral + 3 more
    • English
    The importance of porosity has long been recognized by scientists and engineers. Porous solids are widely encountered in industry and everyday life and their behaviour, e.g. chemical reactivity, adsorptive capacity, and catalytic activity is dependent on their pore structure. A considerable amount of work on porous solids has been undertaken both in academic and in industrial laboratories. However, all this activity is in urgent need of a critical appraisal. To undertake this task, a number of leading experts in the field of adsorption, porosimetry, X-ray and neutron scattering, optical and electron microscopy, calorimetry and fluid permeation, were brought together at the 1987 IUPAC (COPS I) Symposium.This proceedings volume provides an up-to-date overall review of the theoretical foundations for modelling and characterizing porous systems. It deals with most of the techniques in current use as applied to both model systems and porous solids of industrial importance. The reader will find the description and discussion of a number of novel techniques as well as a critical appraisal and comparison of the more established methods. All those concerned with the characterization of porous solids in academic and industrial laboratories will find much to interest them in this volume. It should be on the bookshelf of applied research centres involved in adsorption, catalysis, purification of gases and liquids, pigments, fillers, building materials, etc.

  • Principles, Materials and Techniques

    • 1st Edition
    • Volume A
    • English

  • Hydrolytic Enzymes

    • 1st Edition
    • Volume 16
    • K. Brocklehurst + 1 more
    • English
    This newest volume in the impressive New Comprehensive Biochemistry series presents up-to-date discussions of six types of hydrolytic enzyme that are well characterized structurally: aspartic-, cysteins-, and serine-proteinases, carboxypeptidase A, pancreatic ribonuclease A, and the phosphomonoesterases... The emphasis is on molecular mechanisms deduced by crystallographic, kinetic, spectroscopic and molecular genetic studies. The chapters on the various types of proteinases are complemented by others on proteinase inhibitors and intracellular proteolysis. This book will prove valuable to researchers in general biochemistry, particularly those with interest in enzyme mechanism and protein chemistry, and to Honours and Postgraduate students.

  • Methane Conversion

    • 1st Edition
    • Volume 36
    • D.M. Bibby + 3 more
    • English
    This proceedings volume comprises the invited plenary lectures, contributed and poster papers presented at a symposium organised to mark the successful inauguration of the world's first commercial plant for production of gasoline from natural gas, based on the Mobil methanol-to-gasoline process. The objectives of the Symposium were to present both fundamental research and engineering aspects of the development and commercialization of gas-to-gasoline processes. These include steam reforming, methanol synthesis and methanol-to-gasoline... Possible alternative processes e.g. MOGD, Fischer-Tropsch synthesis of hydrocarbons, and the direct conversion of methane to higher hydrocarbons were also considered.The papers in this volume provide a valuable and extremely wide-ranging overview of current research into the various options for natural gas conversion, giving a detailed description of the gas-to-gasoline process and plant. Together, they represent a unique combination of fundamental surface chemistry catalyst characterization, reaction chemistry and engineering scale-up and commercialization.

  • Chemometrics

    A Textbook
    • 1st Edition
    • Volume 2
    • S.N. Deming + 4 more
    • English
    Most chemists, whether they are biochemists, organic, analytical, pharmaceutical or clinical chemists and many pharmacists and biologists need to perform chemical analysis. Consequently, they are not only confronted with carrying out the actual analysis, but also with problems such as method selection, experimental design, optimization, calibration, data acquisition and handling, and statistics in order to obtain maximum relevant chemical information. In other words: they are confronted with chemometrics. This book on chemometrics, written by some of the leaders in the field, aims to provide a thorough, up-to-date introduction to this subject. The reader is given the opportunity to acquaint himself with the tools used in this discipline and the way in which they are applied. Some practical examples are given and the reader is shown how to select the appropriate tools in a given situation.As such the book provides the means to approach and solve analytical problems strategically and systematically, without the need for the reader to become a fully-fledged chemometrician. The authors' aim was to write a tutorial book which would be useful to readers at every level in this field.

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