|Author||: George Wypych|
|Release Date||: 2020|
|Pages||: 329 pages|
|Author||: George Wypych|
|Publisher||: Chemtec Publishing|
|Release Date||: 2020-03-11|
|ISBN 10||: 1927885655|
|Pages||: 244 pages|
Chain movement, chain mobility, segmental mobility, segmental dynamics, chain orientation are the primary subjects of this monograph having utmost importance in polymer science and technology, medicine, pharmaceutical, and many other applications.
|Author||: George Wypych|
|Release Date||: 2020-03-02|
|ISBN 10||: 1927885663|
|Pages||: 242 pages|
Chain Mobility and Progress in Medicine, Pharmaceuticals, and Polymer Science and Technology covers the core fundamentals and applications of chain movement, chain mobility, segmental mobility, segmental dynamics, and chain orientation in polymer science, medicine, pharmaceuticals, and other disciplines. The book starts by defining principal terms, then looks at the work of Pierre-Gilles de Gennes and his 1991 Nobel Prize in Physics for his work on polymer-chain motion. From there the book discusses the different mechanisms of chain motion of macromolecular substances, the conditions under which chains move, and the effects of these movements on properties of materials, such as chain alignment, chain orientation, creation of free volume, dimensional stability, and more. The final chapters provide insight on analytical methods of chain movement, chain movement phenomena in different polymers, and various fields of application. All concepts, findings, and applications are discussed in easy-to-understand language stripped of disciplinary slang, making the book accessible to researchers and practitioners across a variety of scientific fields. Discusses various chain motion mechanisms such as bond fluctuation, Brill transition, chain diffusion, and more and how these can be applied in the development of cutting-edge products Looks at conditions under which chains move and the effects these movements have on the properties of materials Provides examples of research and technological aspects of chain movements as they relate to analytical methods used for studies, different polymers, and various fields of application
The use of polymers in medical devices is growing at a steady rate. These materials are generally relatively cheap and versatile, qualities required in many bulk applications. In more specialised medical devices, polymeric components have been developed to meet challenging property and performance requirements. This review describes the process of developing polymeric products for medical applications from design requirements through to specific examples of medical devices and packaging. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.
|Author||: National Research Council,Division on Engineering and Physical Sciences,Commission on Physical Sciences, Mathematics, and Applications,Committee on Polymer Science and Engineering|
|Publisher||: National Academies Press|
|Release Date||: 1994-01-01|
|ISBN 10||: 0309049989|
|Pages||: 192 pages|
Polymers are used in everything from nylon stockings to commercial aircraft to artificial heart valves, and they have a key role in addressing international competitiveness and other national issues. Polymer Science and Engineering explores the universe of polymers, describing their properties and wide-ranging potential, and presents the state of the science, with a hard look at downward trends in research support. Leading experts offer findings, recommendations, and research directions. Lively vignettes provide snapshots of polymers in everyday applications. The volume includes an overview of the use of polymers in such fields as medicine and biotechnology, information and communication, housing and construction, energy and transportation, national defense, and environmental protection. The committee looks at the various classes of polymers--plastics, fibers, composites, and other materials, as well as polymers used as membranes and coatings--and how their composition and specific methods of processing result in unparalleled usefulness. The reader can also learn the science behind the technology, including efforts to model polymer synthesis after nature's methods, and breakthroughs in characterizing polymer properties needed for twenty-first-century applications. This informative volume will be important to chemists, engineers, materials scientists, researchers, industrialists, and policymakers interested in the role of polymers, as well as to science and engineering educators and students.
|Author||: David Jones|
|Publisher||: iSmithers Rapra Publishing|
|Release Date||: 2004|
|ISBN 10||: 9781859574799|
|Pages||: 124 pages|
Annotation The review focuses on the use of pharmaceutical polymer for controlled drug delivery applications. Examples of pharmaceutical polymers and the principles of controlled drug delivery are outlined and applications of polymers for controlled drug delivery are described. The field of controlled drug delivery is vast therefore this review aims to provide an overview of the applications of pharmaceutical polymers. The review is accompanied by approximately 250 abstracts taken from papers and books in the Rapra Polymer Library database, to facilitate further reading on this subject.
|Release Date||: 2012-01-01|
|ISBN 10||: 9780444593818|
|Pages||: 1027 pages|
|Author||: National Research Council,Division on Engineering and Physical Sciences,Committee on Applied and Theoretical Statistics,Policy and Global Affairs,Committee on Science, Technology, and Law,Committee on Identifying the Needs of the Forensic Sciences Community|
|Publisher||: National Academies Press|
|Release Date||: 2009-07-29|
|ISBN 10||: 0309142393|
|Pages||: 348 pages|
Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.
Pharmaceutical process research and development is an exacting, multidisciplinary effort but a somewhat neglected discipline in the chemical curriculum. This book presents an overview of the many facets of process development and how recent advances in synthetic organic chemistry, process technology and chemical engineering have impacted on the manufacture of pharmaceuticals. In 15 concise chapters the book covers such diverse subjects as route selection and economics, the interface with medicinal chemistry, the impact of green chemistry, safety, the crucial role of physical organic measurements in gaining a deeper understanding of chemical behaviour, the role of the analyst, new tools and innovations in reactor design, purification and separation, solid state chemistry and its role in formulation. The book ends with an assessment of future trends and challenges. The book provides a valuable overview of: both early and late stage chemical development, how safe and scaleable synthetic routes are designed, selected and developed, the importance of the chemical engineering, analytical and manufacturing interfaces, the key enabling technologies, including catalysis and biocatalysis, the importance of the green chemical perspective and solid form issues. The book, written and edited by experts in the field, is a contemporary, holistic treatise, with a logical sequence for process development and mini-case histories within the chapters to bring alive different aspects of the process. It is completely pharmaceutical themed, encompassing all essential aspects, from route and reagent selection to manufacture of the active compound. The book is aimed at both graduates and postgraduates interested in a career in the pharmaceutical industry. It informs them about the breadth of the work carried out in chemical research and development departments, and gives them a feel for the challenges involved in the job. The book is also of value to academics who often understand the drug discovery arena, but have far less appreciation of the drug development area, and are thus unable to advise their students about the relative merits of careers in chemical development versus discovery.
Mobility is fundamental to economic and social activities such as commuting, manufacturing, or supplying energy. Each movement has an origin, a potential set of intermediate locations, a destination, and a nature which is linked with geographical attributes. Transport systems composed of infrastructures, modes and terminals are so embedded in the socio-economic life of individuals, institutions and corporations that they are often invisible to the consumer. This is paradoxical as the perceived invisibility of transportation is derived from its efficiency. Understanding how mobility is linked with geography is main the purpose of this book. The third edition of The Geography of Transport Systems has been revised and updated to provide an overview of the spatial aspects of transportation. This text provides greater discussion of security, energy, green logistics, as well as new and updated case studies, a revised content structure, and new figures. Each chapter covers a specific conceptual dimension including networks, modes, terminals, freight transportation, urban transportation and environmental impacts. A final chapter contains core methodologies linked with transport geography such as accessibility, spatial interactions, graph theory and Geographic Information Systems for transportation (GIS-T). This book provides a comprehensive and accessible introduction to the field, with a broad overview of its concepts, methods, and areas of application. The accompanying website for this text contains a useful additional material, including digital maps, PowerPoint slides, databases, and links to further reading and websites. The website can be accessed at: http://people.hofstra.edu/geotrans This text is an essential resource for undergraduates studying transport geography, as well as those interest in economic and urban geography, transport planning and engineering.
The book has five chapters, each containing invaluable information for PVC manufacturers, processors, and users.The book provides many new formulations which were introduced in the last six years. In the first introductory chapter, the new product development, product re-engineering tools and market for PVC products have been discussed.
Handbook of Polymers, Second Edition, presents normalized, up-to-date polymer data in a consistent and easily referenceable layout. This new edition represents an update of the available data, including new values for many commercially available products, verification of existing data, and removal of older data where it is no longer useful. The book includes data on all major polymeric materials used by the plastics industry and all branches of the chemical industry, as well as specialty polymers used in the electronics, pharmaceutical, medical, and space fields. The entire scope of the data is divided into sections to make data comparison and search easy, including synthesis, physical, mechanical, and rheological properties, chemical resistance, toxicity and environmental impact, and more. The data enables engineers and materials scientists to solve practical problems, be that in applications, research and development, or legislation. The most current grades of materials have been selected to provide readers with information that is characteristic of currently available products. Includes practical data on the most widely used polymers for engineers and materials scientists in design, manufacture, and applications research Presents data on polymer synthesis, properties, chemical resistance, processing, and their related environmental impacts Provides a comprehensive update to the data, including new information and the verification of existing datasets
In nearly all process industries, crystallization is used at some stage as a method of production, purification or recovery of solid materials. In recent years, a number of new applications have also come to rely on crystallization processes such as the crystallization of nano and amorphous materials. The articles in this book have been contributed by some of the most respected researchers in this area and cover the frontier areas of research and developments in crystallization processes. Divided into three sections, this book provides the latest research developments in many aspects of crystallization including the crystallization of biological macromolecules and pharmaceutical compounds, the crystallization of nanomaterials and the crystallization of amorphous and glassy materials. This book is of interest to both fundamental research and practicing scientists and will prove invaluable to all chemical engineers and industrial chemists in process industries, as well as crystallization workers and students in industry and academia.
Commercial application of chemical enhanced oil recovery (cEOR) processes is expected to grow significantly over the next decade. Thus, Chemical Enhanced Oil Recovery (cEOR): A Practical Overview offers key knowledge and understanding of cEOR processes using an evidence-based approach intended for a broad audience ranging from field operators, researchers, to reservoir engineers dealing with the development and planning of cEOR field applications. This book is structured into three sections; the first section surveys overall EOR processes. The second section focuses on cEOR processes, while the final section describes the electrorheology technology. These sections are presented using a practical and realistic approach tailored for readers looking to improve their knowledge and understanding of cEOR processes in a nutshell.
Handbook of Foaming and Blowing Agents provides useful guidance to assist practitioners in the more efficient and effective selection of foaming methods and blowing agents. The book focuses on the selection of additives for a diverse range of foaming processes, which can be enhanced using modern chemical means to improve product quality, speed up the process, and broaden the range of products that can be produced using foaming technology. Foamed polymers have many beneficial properties, including lower density, high heat and sound insulation, and shock absorbency. Foamed plastic parts are now a ubiquitous part of everyday life—from food packaging to seat cushions. As the application of foamed polymers expands and diversifies, a variety of foaming techniques and equipment are available to produce very diverse range of products. Foaming methods are generally established, but very little is known about the composition of materials to be processed and the additives to enhance foam products or make the foam production more economical. The book introduces useful analytical techniques for foaming, and thoroughly discusses the environmental impact of foaming processes. Introduces the fundamental mechanisms of action of blowing agents and foaming Includes best practice guidance to help engineers and technicians improve the efficiency of their existing foaming processes Enables practitioners to select blowing agents and foaming methods more effectively, reducing the risk of poor specification Introduces useful analytical techniques for foaming Discusses the environmental impact of foaming processes
Extrusion is a very popular manufacturing process, especially because of its versatility in terms of materials and shapes. Representing the vast and multifaceted field of extrusion, this book contains write-ups on latest developments from experts in the field. Part (A) on Metal Extrusion contains chapters on spur gear manufacturing, stiff vacuum extrusion, and indirect extrusion for subsurface tubular expansion. Part (B) on Food and Polymer Extrusion includes chapters on extrusion cooking of functional foods, changes in nutritional properties in extrusion of cereals, physicochemical changes of starch in extrusion of corn flour, extruded aquaculture feed, optimal design of polymer extrusion dies, and extrusion cooking technology for food products.
|Author||: Rehab Abdel Rahman,Hosam El-Din M. Saleh|
|Publisher||: BoD – Books on Demand|
|Release Date||: 2018-09-19|
|ISBN 10||: 1789236169|
|Pages||: 172 pages|
Nuclear engineering could be viewed as the engineering field that ensures optimum and sustainable technological applications of natural and induced radioactive materials in different industrial sectors. This book presents some advanced applications in radiation effects, thermal hydraulics, and radionuclide migration in the environment. These scientific contributions from esteemed experts introduce some nuclear safety principals, current knowledge about radiation types, sources and applications, thermal properties of heat transfer media, and the role of sorption in retarding radionuclide migration in the environment. This book also covers the advances in identifying radiation effects in dense gas-metal systems, application of dense granular materials as high power targets in accelerator driven systems and irradiation facilities, evaluation of boiling heat transfer in narrow channels, and application of fluorescence quenching techniques to monitor uranium migration.