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Elsevier

Elsevier Science

  • Antarctica: Soils, Weathering Processes and Environment

    • 1st Edition
    • Volume 16
    • I.B. Campbell + 1 more
    • English

  • Microcomputer Programs for Groundwater Studies

    • 1st Edition
    • Volume 30
    • D. Clarke
    • English
    This book provides the practising hydrogeologist with a selection of microcomputer programs which the author has found to be very useful as an aid in the investigation of groundwater wells and aquifers. The programs are written in BASIC and are designed to suit as wide a range of computer as possible.The book begins with a group of programs which solve several of the most common functions encountered in groundwater science. These are then developed into programs capable of calculating drawdown in a variety of discharge rate/aquifer/boundar... configurations, either at one time, or a series of exponentially increasing times. The author shows how a computerised form of Newtons method (for solving difficult equations) may be applied to such tasks as evaluating storage coefficient if transmissivity is known. Lagrangian interpolation is used to produce accurate values from tabled functions, either within a program, or on demand.One of the major programs in the book may be used to enter discharge test data into a computer, edit it as required (e.g. change drawdown measurements from feet to metres, or water levels to drawdowns etc.), and finally to analyse the data. For example, three different methods are provided for evaluation of the well equation. Another program is provided for controlling a plotter to produce several popular types of discharge test graphs; and a new image well method is included for simulating boundaries consisting of straight line junctions between areas of two different transmissivities.Thi... is a practical book, written to solve real-life problems. Accordingly, program operation is clearly described, but derivation of equations and functions have been omitted. (For those readers wishing to check on derivations, references are provided). Readers familiar with microcomputer programming may apply the programs given here to their own work, perhaps incorporating them as subroutines into large, more specialized programs. Those unfamiliar with programming can use the programs as they are listed. All programs are designed to be run with no more than an occasional reference to the written instructions being necessary.

  • Preparation of Catalysts IV

    Scientific Bases for the Preparation of Heterogeneous Catalysts
    • 1st Edition
    • Volume 31
    • G. Poncelet + 3 more
    • English
    The proceedings of the IVth International Symposium on the ``Scientific Bases for the Preparation of Heterogeneous Catalysts'', are presented in this volume. Since its start in 1975, this series of Symposia has continued to attract increasing scientific attention. An appreciable proportion of the papers presented at this Fourth Symposium stemmed from industrial research laboratories. The symposium dealt with catalysts for selective oxidation, hydrodesulphurizatio... Fischer-Tropsch catalysis, methanol synthesis, metal supported catalysts and new trends in catalyst preparation.

  • Synthesis of High-Silica Aluminosilicate Zeolites

    • 1st Edition
    • Volume 33
    • J.A. Martens + 1 more
    • English
    This book provides an overview of all new high-silica zeolites which have been discovered between 1975 and 1985. The first part presents some 25 proven recipes for the preparation of high-silica zeolites and describes the characteristics of the materials obtained. This will allow bench-scale production of these materials for scientific research. In the second part, high-silica zeolites with solved structure type are discussed. This part classifies many proprietary materials according to known structure types, and describes the rules and parameters which govern the formation of these materials. In the third part, the formation and characteristics of high-silica zeolites with unknown structure type are discussed. The book contains a wealth of information for all those scientists who incorporate the use of high-silica zeolites in their work.

  • Three-Dimensional Models of Marine and Estuarine Dynamics

    • 1st Edition
    • Volume 45
    • J.C.J. Nihoul + 1 more
    • English
    These proceedings represent the most recent and complete state of the art review of three-dimensional models of the modern generation for the study of marine hydrodynamics and management of the marine system. The book is well illustrated by application to well-documented case studies.

  • Remote Sensing in Soil Science

    • 1st Edition
    • Volume 15
    • M.A. Mulders
    • English
    This book provides comprehensive coverage of remote sensing techniques and their application in soil science. A clear, step-by-step approach to the various aspects ensures that the reader will gain a good grasp of the subject so that he can apply the techniques to his own field of study.The book opens with a thorough introduction to the physical aspects of electromagnetic radiation and the technical aspects of remote sensing and image processing. This is followed by a discussion of the methods for interpreting remote sensing data, and their application to soils, vegetation, and land as a whole.As the interpretation of soil conditions is based on many aspects (i.e. soil surface, vegetation, land use, land form), the scope of the book is correspondingly broad. It will therefore provide much useful information for students and scientists in soil science, geography, geology, hydrology, ecology, agriculture and civil engineering.

  • The Interpretation of Logging Data

    Part B
    • 1st Edition
    • Volume 15B
    • English
    Conceived and written by a geologist for geologists, Fundamentals of Well-Log Interpretation is a considerably revised and updated translation of the French edition. Part 1 dealt with the acquisition of logging data and when it appeared, one reviewer wrote: ``Serra has written a major reference work which is unusually well-organized, well-illustrated, and information-rich... If volume 2 is as thorough and exacting in detail as volume 1, it will do much toward furthering geologists' knowledge of well logging.'' (AAPG Bulletin).The fundamental objective of this second volume is to show that wireline log data constitute a remarkable source of geological information of the utmost importance for geologists, but also for reservoir engineers, geophysicists and petrophysicists. Too often, by nature of their training, geologists do not realize that wireline log data, which are physical data, hold in fact a tremendous variety of geological information covering practically all branches of geology. They are reluctant to use these data because often they are not familiar with them and do not know how to interpret wireline logs. Other log users generally do not realize the importance of geological knowledge to better interpret logs.This book aims to fill the gap by showing how wireline log data are dependent on geological parameters and how to extract the latter from the former. Methods of extracting the desired information from the wireline log data are explained and illustrated. In summary, the book explains how to make good geological studies from wireline logs. It is an invaluable acquisition for geologists, petrophysicists, reservoir engineers and geophysicists who wish to make better use of wireline log data.

  • Thin Metal Films and Gas Chemisorption

    • 1st Edition
    • Volume 32
    • P. Wissmann
    • English
    The last decade has seen an explosive growth in research on the physics and chemistry of metal surfaces. With the advent of modern spectroscopic methods several aspects of metallic surfaces and their interactions with gases could be explained. The standard of clean surfaces required for basic research were obtained essentially in two ways: (a) By ion-bombardment and proper heat treatment of single crystals, and (b) By depositing thin films on suitable substrates under UHV conditions. Chemisorption studies have concentrated on single crystal surfaces largely because of the inherent simplicity due to their well-defined structure. Numerous publications provide convincing evidence of the insights gained and the results obtained. The number of publications dealing with chemisorption on thin metal films is, however, rather small, although the films are technically more interesting than single crystals. Enormous difficulties faced in reliable characterization of the pure film surfaces, as compared to single-crystals, may be partly responsible for the lack of attention given to such films.The present book aims to fill an important gap in the literature on chemisorption studies. Apart from structural characterization methods, the investigation techniques emphasized here are those used solely for thin films or which permit a direct comparison with single-crystal studies. The literature published to date provides practically no mention of the possibilities available for the analysis of energetically heterogeneous surfaces with modern spectroscopic methods. For this reason, the capability of photoelectron spectroscopy, vibrational spectroscopy, work function measurements and optical analysis for characterizing the pure and gas-covered films is particularly emphasized.

  • Catalysis and Automotive Pollution Control

    • 1st Edition
    • Volume 30
    • A. Crucq + 1 more
    • English
    In June 1984 the EEC Commission proposed new standards of permissible exhaust gas from motor vehicles to be introduced in Europe; these standards were approved by the Ministers of the Environment one year later. As the control of automotive pollution is at present mainly a catalytic problem, it was decided to hold an International Symposium on the subject, and an organizing committee composed of people engaged in catalytic research in the different Belgian Universities was constituted. This was the first Symposium of its kind to be held on an international level, and the quality and scientific interest of the papers presented was exceptional. It is planned to hold a follow-up Symposium in 2 to 3 years' time.The first part of the book is a general introduction to the problem of automotive pollution. The second, properly catalytic, part is devoted to fundamental and applied studies on pollution control, with emphasis on exhaust catalytic converters.

  • The Organic Chemistry of Museum Objects

    • 1st Edition
    • Stephen G Rees-Jones
    • English
    The Organic Chemistry of Museum Objects provides an account of the composition, chemistry, and analysis of the organic materials which enter into the structures of objects in museum collections. This book is not intended to duplicate the information available in existing handbooks on the materials and techniques of art and conservation but rather to convey the state of knowledge of the chemical composition of such materials and so provide a framework for a general understanding of their properties. The book begins with a review of basic organic chemistry, covering hydrocarbons and compounds with functional groups. It then describes spectrometry and separation methods. This is followed by discussions of the chemistry and composition of oils and fats, natural waxes, bituminous materials, carbohydrates, proteins, and natural resins and lacquers. Subsequent chapters deal with synthetic materials, i.e., high molecular weight polymers of a wholly synthetic nature; and natural and synthetic dyestuffs. Also discussed are the deterioration and other changes in organic materials resulting from both free radical and ionic reactions; and the application of analytical methods to identify the organic materials of actual museum objects. This book is intended for both chemists and nonchemists.

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