The Effect of UV Light and Weather PDF Download
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Author: Liesl K. Massey
Publisher: William Andrew
ISBN: 0815519257
Category : Technology & Engineering
Languages : en
Pages : 489
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Book Description
This extensively updated, comprehensive databook was created for design and application engineers, scientists, and material producer technical support and research and development personnel. Important weathering characteristics and material properties of plastics and elastomers are presented in discussion, tabular and graphical sections. It provides a ready reference for comparing materials in the same family as well as materials in different families.Data are presented on 80 major plastic and elastomer materials, including biodegradable or organic polymers. New to this edition, the resin chapters each contain textual summary information including category, general description, and weathering properties detailing information of the material's susceptibility or immunity to weathering including discussion of test results. Extensive references are provided. The resin chapter material supplier trade name product data are presented in graphical and tabular format, with results normalized to SI units, retaining the familiar format of the 1st edition and allowing easy comparison between materials and test conditions.
Author: Liesl K. Massey
Publisher: William Andrew
ISBN: 0815519257
Category : Technology & Engineering
Languages : en
Pages : 489
Get Book Here
Book Description
This extensively updated, comprehensive databook was created for design and application engineers, scientists, and material producer technical support and research and development personnel. Important weathering characteristics and material properties of plastics and elastomers are presented in discussion, tabular and graphical sections. It provides a ready reference for comparing materials in the same family as well as materials in different families.Data are presented on 80 major plastic and elastomer materials, including biodegradable or organic polymers. New to this edition, the resin chapters each contain textual summary information including category, general description, and weathering properties detailing information of the material's susceptibility or immunity to weathering including discussion of test results. Extensive references are provided. The resin chapter material supplier trade name product data are presented in graphical and tabular format, with results normalized to SI units, retaining the familiar format of the 1st edition and allowing easy comparison between materials and test conditions.
Author: Laurence W. McKeen
Publisher: William Andrew
ISBN: 145573005X
Category : Science
Languages : en
Pages : 401
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Book Description
This reference guide brings together a wide range of essential data on the effects of weather and UV light exposure on plastics and elastomers, enabling engineers to make optimal material choices and design decisions. In both normal and extreme environments, outdoor use has a variety of effects on different plastics and elastomers, including discoloring and brittleness. The data is supported by explanations of real-world engineering applications. The data tables in this book are supported by examples of real-world applications, enabling engineers and scientists to select the right materials for a given situation, across a wide range of sectors including construction, packaging, signage, consumer (e.g. toys, outdoor furniture), automotive and aerospace, defense, etc. The third edition includes new text chapters that provide the fundamental knowledge required to make best use of the data. Author Larry McKeen has also added detailed descriptions of the effect of weathering on the most common polymer classes such as polyolefins, polyamides, polyesters, elastomers, fluoropolymers, biodegradable plastics, etc., making this book an invaluable design guide as well as an industry standard data source. - Essential data and practical guidance for engineers and scientists working with plastics in outdoor applications and products - New introductory chapters on weathering processes and the effect of light and heat on plastics - 25% new data
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 481
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Book Description
Author: George Wypych
Publisher: William Andrew
ISBN: 0815519583
Category : Technology & Engineering
Languages : en
Pages : 331
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Book Description
In spite of extensive efforts, material weathering testing still requires improvement. This book presents findings and opinions of experts in material degradation testing. The aim is to improve testing methods and procedures. Materials are presented to show that photochemical degradation rate depends on a combination of environmental factors such as UV radiation, temperature, humidity, rain, stress, and concentration of reactive pollutants. The potential effect of each parameter of degradation on data gathered is discussed based on known results from a long experience in testing. This book contains data obtained in laboratories of the largest manufacturers of UV stabilizers and chemical companies that manufacture durable materials. The book gives details of testing procedures and choice of parameters of exposure which are crucial for obtaining laboratory results correlating with environmental performance of materials.In addition to exposure conditions, the book contains many suggestions on sample preparation and post-exposure testing. The effective use of these methods shortens testing time of materials and determines acceleration rate of testing. The book also gives examples of complete, well-designed weathering experiments which may be used as patterns for selection of parameters and techniques for new studies. The areas of research that still require more attention in future studies are clearly indicated.
Author: Wei Gao
Publisher: Springer Science & Business Media
ISBN: 364203313X
Category : Science
Languages : en
Pages : 565
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Book Description
Numerous studies report that ultraviolet (UV) radiation is harmful to living organisms and detrimental to human health. Growing concerns regarding the increased levels of UV-B radiation that reach the earth's surface have led to the development of ground- and space-based measurement programs. Further study is needed on the measurement, modeling, and effects of UV radiation. The chapters of this book describe the research conducted across the globe over the past three decades in the areas of: (1) current and predicted levels of UV radiation and its associated impact on ecosystems and human health, as well as economic and social implications; (2) new developments in UV instrumentation, advances in calibration (ground- and satellite-based), measurement methods, modeling efforts, and their applications; and (3) the effects of global climate change on UV radiation. Dr. Wei Gao is a Senior Research Scientist and the Director of the USDA UV-B Monitoring and Research Program, Natural Resource Ecology Laboratory, Colorado State University. Dr. Gao is a SPIE fellow and serves as the Editor-in-Chief for the Journal of Applied Remote Sensing. Dr. Daniel L. Schmoldt is the National Program Leader for instrumentation and sensors at the National Institute of Food and Agriculture (NIFA) of the U.S. Department of Agriculture. Dr. Schmoldt served as joint Editor-in-Chief of the journal, Computers & Electronics in Agriculture, from 1997 to 2004. Dr. James R. Slusser retired in 2007 from the USDA UV-B Monitoring and Research Program at Colorado State University. He was active in the Society of Photo-Optical Instrumentation Engineers, the American Geophysical Union, and the American Meteorological Society. Dr. Slusser is currently pursuing his interests in solar energy and atmospheric transmission.
Author: Shamim I. Ahmad
Publisher: Springer
ISBN: 3319560174
Category : Medical
Languages : en
Pages : 367
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Book Description
This book is about the roles and importance of Ultraviolet (UV) light from sun and from man-made UV lamps in our daily life, on health and diseases, also its application in sterilization and treatment. The key words are: reactive oxygen species, DNA damage, UV mutagenicity, skin cancers, polymorphous light eruption, Xeroderma pigmentosum, vitiligo, psoriasis, rheumatoid arthritis, diabetes mellitus, metabolic syndromes, cardiovascular diseases, dermatology, photobiology, photodermatosis, vitamin D synthesis, vitamin D efficiency, water sterilization, blood sterilization, phototherapies, skin tanning and UV dosimeter. The book starts with introduction to UV light and the history of development of UV lamps and its applications. It then moves to describing the interaction of this light with biological components and the production of reactive oxygen species, their roles in cell signaling, cellular defense from foreign invaders, in mutagenesis leading to skin diseases including vitiligo, polymorphous light eruption and various forms of skin cancer. Then it presents the synthesis and importance of UV light and diseases, induced due to the deficiency of vitamin D. Roles of UV light in sterilization, disinfection, phototherapies are depicted in the next part and finally use and abuse of UV light in tanning salon and the availability and importance of use of UV dosimeter are highlighted. The three main focuses of this book are: - Damage to biological systems by UV light leading to certain skin diseases; most importantly skin cancers. - Importance of UV light in the in vivo synthesis of vitamin D when human bodies are exposed to it. - Diseases caused due to the deficiency of vitamin D and the use of UV lamps in phototherapy and sterilization processes. The editor has considerable experience in publishing medical books and has used it critically selecting the matters which will attract the readers from many areas of medical and non-medical fields. It is hoped that the materials presented in this book will give great benefit and will stimulate both novice and expert researchers in the field. The book gives excellent overviews of the current status of research and pointers to the future research achievements. Clinicians, medical general practitioners, technicians and staff working in UV related industries and especially those working in tanning salon should benefit from the information presented in safe handling of this light.
Author: Klaus Scherer
Publisher: Springer Science & Business Media
ISBN: 9783540229070
Category : Science
Languages : en
Pages : 320
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Book Description
The various processes that connect the physics of the Sun with that of the Earth`s environment has become known as "Space Weather" during recent years, a slogan that has emerged in connection with many other expressions adapted from meteorology, such as solar wind, magnetic clouds or polar rain. This volume is intended as a first graduate-level textbook-style account on the physics of these solar-terrestrial relations and their impact on our natural and technological environment.
Author: Marlene G. Rosato
Publisher: Springer Science & Business Media
ISBN: 1461513995
Category : Technology & Engineering
Languages : en
Pages : 697
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Book Description
This book provides a simplified and practical approach to designing with plastics that funda mentally relates to the load, temperature, time, and environment subjected to a product. It will provide the basic behaviors in what to consider when designing plastic products to meet performance and cost requirements. Important aspects are presented such as understanding the advantages of different shapes and how they influence designs. Information is concise, comprehensive, and practical. Review includes designing with plastics based on material and process behaviors. As de signing with any materials (plastic, steel, aluminum, wood, etc.) it is important to know their behaviors in order to maximize product performance-to-cost efficiency. Examples of many different designed products are reviewed. They range from toys to medical devices to cars to boats to underwater devices to containers to springs to pipes to buildings to aircraft to space craft. The reader's product to be designed can directly or indirectly be related to product design reviews in the book. Important are behaviors associated and interrelated with plastic materials (thermoplastics, thermosets, elastomers, reinforced plastics, etc.) and fabricating processes (extrusion, injec tion molding, blow molding, forming, foaming, rotational molding, etc.). They are presented so that the technical or non-technical reader can readily understand the interrelationships.
Author: Uni-Bell PVC Pipe Association
Publisher:
ISBN: 9780831134501
Category : House & Home
Languages : en
Pages : 0
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Book Description
The Most Thorough and Far-reaching Revision Yet! The new 5th edition of the Handbook of PVC Pipe Design and Construction is the most comprehensive and up-to-date reference on PVC pipe and fittings. It provides practical engineering and construction information. It includes recommendations applicable to the design and use of primarily underground PVC piping systems in both pressure and non-pressure applications. Previous editions have been used by engineers all across North America and around the globe in the utility and consulting engineering sectors, as well as in universities and technical institutions. New to the Fifth Edition Four new chapters PVC Pressure Pipe Installation PVC Non-Pressure Pipe Installation Trenchless Installation of PVC Pipe Molecularly Oriented Polyvinyl Chloride Pipe (PVCO) Updated and improved graphs and tables More open page format The collaborative result of thousands of hours of research and review, the contents of the 5th edition are numerically formatted by section and subsection, as well as by figure and table designation. This allows easy reference and quick access. The Handbook of PVC Pipe Design and Construction is a must-have reference for design engineers, public and private pipe utility managers, and students. A more complete text on PVC pipe is not available.
Author: Gerhard Wieser
Publisher: MDPI
ISBN: 3039286307
Category : Science
Languages : en
Pages : 268
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Book Description
Concerns have been raised with respect to the state of high-altitude and high-latitude treelines, as they are anticipated to undergo considerable modifications due to global changes, and especially due to climate warming. As high-elevation treelines are temperature-limited vegetation boundaries, they are considered to be sensitive to climate warming. As a consequence, in this future, warmer environment, an upward migration of treelines is expected because low air and root-zone temperatures constrain their regeneration and growth. Despite the ubiquity of climate warming, treeline advancement is not a worldwide phenomenon: some treelines have been advancing rapidly, others have responded sluggishly or have remained stable. This variation in responses is attributed to the potential interaction of a continuum of site-related factors that may lead to the occurrence of locally conditioned temperature patterns. Competition amongst species and below-ground resources have been suggested as additional factors explaining the variability in the movement of treelines. This Special Issue (book) is dedicated to the discussion of treeline responses to changing environmental conditions in different areas around the globe.
