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Elsevier Science

  • Modern Density Functional Theory: A Tool For Chemistry

    • 1st Edition
    • Volume 2
    • P. Politzer + 1 more
    • English
    Density Functional Theory (DFT) is currently receiving a great deal of attention as chemists come to realize its important role as a tool for chemistry. This book covers the theoretical principles of DFT, and details its application to several contemporary problems. All current techniques are covered, many are critically assessed, and some proposals for the future are reviewed. The book demonstrates that DFT is a practical solution to the problems standard ab initio methods have with chemical accuracy.The book is aimed at both the theoretical chemist and the experimentalist who want to relate their experiments to the governing theory. It will prove a useful and enduring reference work.
  • Bioactive Natural Products (Part E)

    V15
    • 1st Edition
    • Volume 15
    • Atta-ur Rahman
    • English
  • Selected Topics in the History of Biochemistry. Personal Recollections. IV

    • 1st Edition
    • Volume 38
    • G. Semenza + 2 more
    • English
    The editors invited selected authors who had participated in or observed developments in biochemistry and molecular biology, particularly in the second half of this century, to record their personal recollections of the times and circumstances in which they worked. Having been given free reign, both content and style of the contruibutions reflect the flavour of the personality of the author.The book reflects the explosive development of biochemistry and molecular biology and related sciences that had led to the almost unique situation of these fields coming of age at a time when their founding fathers, or their scientific children, were alive and well.The contributions in this volume encompass a wide variety of experiences in many different countries and in very different fields of biochemistry.
  • Membrane Separations Technology

    Principles and Applications
    • 1st Edition
    • Volume 2
    • R.D. Noble + 1 more
    • English
    The field of membrane separation technology is presently in a state of rapid growth and innovation. Many different membrane separation processes have been developed during the past half century and new processes are constantly emerging from academic, industrial, and governmental laboratories. While new membrane separation processes are being conceived with remarkable frequency, existing processes are also being constantly improved in order to enhance their economic competitiveness. Significant improvements are currently being made in many aspects of membrane separation technology: in the development of new membrane materials with higher selectivity and/or permeability, in the fabrication methods for high-flux asymmetric or composite membranes, in membrane module construction and in process design. Membrane separation technology is presently being used in an impressive variety of applications and has generated businesses totalling over one billion U.S. dollars annually.The main objective of this book is to present the principles and applications of a variety of membrane separation processes from the unique perspectives of investigators who have made important contributions to their fields. Another objective is to provide the reader with an authoritative resource on various aspects of this rapidly growing technology. The text can be used by someone who wishes to learn about a general area of application as well as by the knowledgeable person seeking more detailed information.
  • Science of Ceramic Interfaces II

    • 1st Edition
    • Volume 81
    • J. Nowotny
    • English
    This collection of papers arose from the Proceedings of the International Workshop on Interfaces of Ceramic Materials held in Australia, 1993 and is a continuation of the previous book published under the same title. The objective of the Workshop was to discuss research progress on the chemistry of ceramic interfaces and related industrial aspects. Due to the multidisciplinary character of ceramic interfaces the book contains articles covering several areas of expertise, including ceramics, surface science, solid state electrochemistry, metallurgy and high temperature chemistry. Some technical papers are also included in this volume.Scientists and engineers working in these areas, as well as students in materials science and engineering, will find this book of particular significance.
  • Tracers in the Oil Field

    • 1st Edition
    • Volume 43
    • B. Zemel
    • English
    This book is concerned with the application of tracers to a wide variety of oil field operations. It provides the necessary nuclear concepts and techniques which are basic to oil field tracer applications. Laboratory and field techniques are explained and illustrated as are the associated regulatory and safety aspects. Within the book, each area of oil field use is considered separately and specific applications of tracers discussed and relevant literature reviewed. The use of non-radioactive tracers is pointed out wherever it is applicable.Due to the nature of this competitive industry, much research is poorly documented, thus Tracers in the Oil Field aims to make the technology more available to current users in the oil field.
  • Advances in Organobromine Chemistry II

    • 1st Edition
    • Volume 7
    • J.-R. Desmurs + 2 more
    • English
    The organic molecules that are used, particularly in the areas of pharmacy and agrochemicals, are becoming more and more complex both in their chemical nature and spacial configuration. A complex molecular structure is inevitably fragile; it cannot be produced under severe conditions (in particular high pressure and temperature). In addition there is a problem of the scale-up of a product from the laboratory to the industrial scale. The control of the reactivity, selectivity, and yield and the use of sufficiently mild industrial conditions are all factors that must be taken into account by industrial chemists. Amongst the tools giving controllable reactivity, selectivity, and relatively mild reaction conditions is bromine. The organic chemistry of bromine sometimes gives surprising selectivities compared to those of chlorine.This volume which is based on Orgabrom '93, brings together the main contributions presented at this event.
  • Retention and Selectivity in Liquid Chromatography

    Prediction, Standardisation and Phase Comparisons
    • 1st Edition
    • Volume 57
    • R.M. Smith
    • English
    This book brings together a number of studies which examine the ways in which the retention and selectivity of separations in high-performance liquid chromatography are dependent on the chemical structure of the analytes and the properties of the stationary and mobile phases. Although previous authors have described the optimisation of separations by alteration of the mobile phase, little emphasis has previously been reported of the influence of the structure and properties of the analyte.The initial chapters describe methods based on retention index group increments and log P increments for the prediction of the retention of analytes and the ways in which these factors are influenced by mobile phases and intramolecular interactions. The values of a wide range of group increments in different eluents are tabulated.Different scales of retention indices in liquid chromatography are described for the comparison of separations, the identification of analytes and the comparison of stationary phases. Applications of these methods in the pharmaceutical, toxicology, forensic, metabolism, environmental, food and other fields are reviewed. The effects of different mobile phases on the selectivity of the retention indices are reported. A compilation of sources of reported retention index values are given.Methods for the comparison of stationary phases based on the interactions of different analytes are covered, including lipophilic and polar indices, shape selectivity comparisons, their application to novel stationary phases, and chemometric methods for column comparisons.
  • Quality Assurance for Environmental Analysis

    Method Evaluation within the Measurements and Testing Programme (BCR)
    • 1st Edition
    • Volume 17
    • E.A. Maier + 2 more
    • English
    Quality assurance (QA) for environmental analysis is a growing feature of the nineties as is illustrated by the number of QA guidelines and systems which are being implemented nowadays. There is, however, often a huge gap between the implementation and respect of QA guidelines and the technical approach undertaken to improve and validate new analytical methods. This is particularly true for complex determinations involving multi-step methodologies such as those used in speciation and organic analyses.Quality assurance may also be considered from the technical point of view, which is the focus of this book. The techniques used in different analytical fields (inorganic, speciation and organic analysis) are critically reviewed (i.e. discussion of advantages and limitations) and existing tools for evaluating their performance are described (e.g. interlaboratory studies, use of certified reference materials). Particular reference is made to the activities of the Measurements and Testing Programme (BCR) of the European Commission towards the improvement of quality control of environmental analysis.The book has been written by experienced practitioners. By its nature, it serves as a practical reference for postgraduate students and environmental chemists who need a wide overview of the techniques used in environmental analysis and existing ways of evaluating the performance of relevant analytical methods. The critical discussions of the methods described, as well as the development of quality assurance aspects, makes it unique.
  • Lignites of North America

    • 1st Edition
    • Volume 23
    • H.H. Schobert
    • English
    Providing a comprehensive survey of the origin, the fundamental properties, and the technology of utilization of the lignites of North America, this book will be of particular interest to professional scientists and engineers working in coal research or coal technology. Coals display a continuum of properties, often with no sharp, steep change between ranks and thus the book restricts the discussion strictly to lignites (with the occasional comparisons with other coals).There is a very extensive index, making the contents of the book easily accessible to the reader.