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Elsevier Science

  • Control Methods in Polymer Processing

    • 1st Edition
    • Volume 10
    • L. Halász
    • English
    This book discusses the process theories and automation levels of the most important polymer processes which are necessary to achieve product quality and process economy. The book describes mixing, calendering, screw plastications, sheet and tube extrusion, film blowing, blow moulding and injection moulding. The control methods employed for each of these individual processes are presented in detail. The book is designed to provide information on static and dynamic processes and viable control systems.
  • Proceedings of the 11th International Conference on Vacuum Ultraviolet Radiation Physics

    • 1st Edition
    • T. Miyahara + 3 more
    • English
    These volumes contain 365 of the 505 papers presented at the VUV-11 Conference, held at Rikkyo University, Tokyo, from August 27th to September 1st 1995. The papers are divided into three sections: atomic and molecular spectroscopy, solid state spectroscopy and instrumentation and technological applications. New aspects presented were both quantitative and qualitative improvements in fluorescence spectroscopy and magnetic circular dichroism measurements. The fluorescence data are complementary to those of photoemission in a sense but they appear to open up a new method to analyze the optical excitation and relaxation processes. The application of magnetic circular dichroism has proved to be useful not only in analyzing the electronic structures of magnetic materials but also in practical applications to material engineering as found in experiments combined with photoelectron microscopy. Excellent developments in applications are only found in the field of surface photochemistry, where the technique of etching using VUV light has been appreciably refined.Although the majority of distinctive scientific features in the VUV-11 Conference have been brought about by the application of synchrotron radiation, experiments using a different type of light source appear to have progressed steadily. This is evident in the studies of plasma radiation.
  • Duplex Systems

    Hot-dip Galvanizing Plus Painting
    • 1st Edition
    • J.F.H. van Eijnsbergen
    • English
    This book is unique in several aspects.• It is the first comprehensive text ever written on the subject of duplex systems, which is the generic term for painted hot-dip galvanized steel.• Both the traditional batch hot-dip galvanizing process and the modern sheet galvanizing processes are covered.• The author offers a combination of practical information, which will enable the engineer to select the proper materials, and scientific background information.• The practical guidelines are backed up and supported by an impressive amount of technical and scientific discussions and justifications.• Modern surface analysis tools and recent applications are described.• The world literature on the subject matter is covered and is up to date.Duplex systems, which are based on the synergistic effect of galvanizing and painting, offer maximum protection against corrosion of steel surfaces in environments where galvanized steel alone cannot offer a sufficiently long resistance against rust formation. Since adhesion problems can be eliminated by the correct application of special paint products, and by sophisticated surface pretreatment and modern surface analyzing methods, duplex systems are nowadays used in a large number of industrial and domestic applications. Major savings can thus be achieved on materials and maintenance cost. Duplex systems serve also where colour is required, e.g. for aesthetic reasons, for enhancing visibility or for camouflaging.The author of this book has an unsurpassed experience in this field and the many case histories of successful (and unsuccessful) use of duplex systems for corrosion prevention provide a wealth of practical information. Including 108 colour illustrations, the book will be useful to a large group of industries, such as the paint, metallurgical, galvanizing, building, automotive, electrical and chemical industries.
  • Granite Landforms

    • 1st Edition
    • C.R. Twidale
    • English
    Granite Landforms provides a systematic, coherent, and comprehensive account and analysis of granite landforms. It examines granite forms and their genesis; the morphology of granite exposures; the nature of the materials from which granitic rocks have evolved; and the weathering processes near the Earth’s surface. It also describes major landforms and assemblages, as well as the minor features that have evolved on the major hosts. Organized into four parts encompassing 12 chapters, this book begins with an overview of granite, including their characteristics, occurrences, and composition. It then discusses the factors that influence the weathering of granitic rocks and considers boulders and inselbergs, the all-slopes topography in granite, granite plains and rock basins, granite forms associated with steep slopes, and scarp foot depressions. The reader is also introduced to the piedmont angle, grooves or flutings, caves and tafoni, split rocks, cracked blocks and plates, and the role of climate in the development of landforms on granitic outcrops. Geologists, geomorphologists, geology students, and anyone interested in geology will find this book extremely useful.
  • Forest Amelioration

    • 1st Edition
    • Volume 14
    • O. Riedl + 1 more
    • English
    This book is primarily addressed to workers engaged in water management and forest husbandry. It provides an overview of the problems and describes biological and engineering measures designed to improve drainage conditions in small catchment areas, protect forest land against erosion, control torrential flows, regulate the water economy of forest soils, and improve the microclimatic conditions.The thirteen chapters not only provide the reader with all the essential theoretical information, but are also supplemented by practical examples indicating solutions to typical situations. In addition, numerous diagrams and photographs are included to illustrate both theoretical considerations and the practical solutions, and several tables are added to facilitate actual computations.
  • Explosion Hazards and Evaluation

    • 1st Edition
    • W.E. Baker + 4 more
    • English
    Explosion Hazards and Evaluation presents the principles and applications of explosion hazards evaluation. The text is organized into nine chapters. Chapters 1 and 2 discuss the energy release processes which generate accidental explosions, and the resulting development of pressure and shock waves in a surrounding atmosphere. The manner in which the "free-field" waves are modified in interacting with structures or other objects in their paths is discussed in Chapter 3. Structural response to blast loading and non-penetrating impact is covered in two chapters, with Chapter 4 including simplified analysis methods and Chapter 5 including numerical methods. Chapter 6 includes a rather comprehensive treatment of generation of fragments and missiles in explosions, and the flight and effects of impact of these objects. Chapter 7 considers thermal radiation of large chemical explosions. Explosions may or may not cause damage or casualty, and various damage criteria have been developed for structures, vehicles, and people. These criteria are presented in Chapter 8. General procedures for both the postmortem evaluation of accidental explosions and for design for blast and impact resistance are reviewed in Chapter 9. Engineers, scientists, and plant safety personnel will find the book very useful.
  • Biotic Diversity in Agroecosystems

    • 1st Edition
    • D. Pimentel + 1 more
    • English
    The preservation of biodiversity is a high priority among biologists, ecologists and environmentalists. The impact that human activities have on biodiversity is clear; however, few studies have focused on the importance of biodiversity to natural and agricultural ecosystems. In fact, many natural species are essential to sustainable agricultural programs. A new school of thought is appreciating the ecological principles and benefits that diversity of natural biota have for humans and the environment. Landscape ecology and agroecology can play a major role in protecting the environment and conserving biological diversity. The practical opportunities for improving the sustainability of agriculture and making it more environmentally sound were discussed at the Symposium on Agroecology and Conservation Issues, from which 22 papers were collected for this volume. Strategies for increasing biodiversity in agricultural landscapes are provided alongside discussion that agriculture will continue to spread into forests, to meet the growing need for food. Although humans recognize the value of crop and livestock species, few really appreciate the fact that agriculture and forestry cannot function in a productive sustainable way when significant numbers of species in natural biota are lost.
  • Trickle Irrigation for Crop Production

    Design, Operation and Management
    • 1st Edition
    • Volume 9
    • F.S. Nakayama + 1 more
    • English
    An entirely new agricultural technology, trickle or drip irrigation, began its development in the early 1960's. Initial progress was sporadic even though the advantages in water management with trickle systems were recognized. Operators were reluctant to use the system because of its high initial cost and questions regarding its reliability. Once the main problems were isolated and solutions developed to make the system reliable, rapid acceptance by the growers resulted. Today, trickle irrigation is being used on crops that were earlier considered to be uneconomical. This multi-purpose handbook brings together current knowledge from various engineering and scientific disciplines (crop, hydraulic, irrigation and soil sciences) needed for understanding the trickle irrigation system for crop production. The two dozen contributors are experts on the various subjects, which range from the basic to the more practical aspects of trickle irrigation. Major topics include design, operation and management - with individual chapters covering historical development, emitter construction and clogging, system design, water and salt distribution, automation, water treatment, irrigation scheduling, maintenance, fertilization and salinity.The book greatly expands the scope of research papers, reviews, extension bulletins, and updates earlier text with new information on trickle systems. A multi-disciplinary approach has been taken on a multi-faceted subject. The material contained in the book is the most comprehensive yet developed on the topic. Illustrative sample problems and solutions provide field operators and extension personnel with information needed to install and maintain trickle systems. As it is up-to-date, it is useful as a teaching and reference source for students, manufacturers and irrigation system operators as well as irrigation and crop specialists, and consultants.
  • Regional Studies

    • 1st Edition
    • Volume 5
    • Bozzano G Luisa
    • English
    Regional Studies is a collection of papers that deals with strata-bound mineral deposits in the Eastern Alps, in the Canadian Cordillera, in north-central, and southwest England. Other papers describe southern African stratiform ore deposits and the genesis of Irish base-metal deposits. One paper compares the various types of volcanogenic mineral deposits and their depositional environments characterized by distinct assemblages of volcanic rocks, which formed in the Northern Appalachians during certain episodes of the tectonic evolution. The paper notes that the youngest volcanogenic deposits of economic interest are tungsten—molybdenum—... base metal deposits in highly altered rhyolitic sub-volcanic complexes at Mount Pleasant, New Brunswick. Another paper reviews the mineral occurrences in southern Africa that include stratiform, non-magmatic, ore deposits, The paper considers a subdivision of deposits formed from surficial chemical processes during previous (or current) cycles of weathering and erosion. Many ore bodies have a dual origin: for example, the iron in the high-grade hematite deposits is partly syngenetic and partly epigenetic. The paper also illustrates the time-dependence of some stratiform ore deposits in southern Africa in a schematic diagram. Geologists, researchers, or engineers whose works are related with ore deposits and mining will benefit tremendously from the collection.
  • The Soil Mites of the World

    Vol. 1: Primitive Oribatids of the Palaearctic Region
    • 1st Edition
    • J. Balogh + 1 more
    • English
    Soil mites are of great biological importance both in natural and in cultivated soils. Recently much attention has been paid to them especially because of their sensitivity to a number of chemicals used in agriculture. Of the soil mites, the Oribatids represent the largest number of both individuals and species. Unfortunately, the study of Oribatids has been greatly hampered by the lack of modern reference works from which they can be identified, and it was this great lack that stimulated the authors to launch this new series of books.The first volume, after a short morphological treatment, gives the method of collection, preparation, and mode of study of prepared specimens. The work is designed to discuss critically all recognizable species and is amply complemented with differential diagnoses and entirely new figures from supercohorts down to species. The book also includes an index of taxa.