Polymer Photodegradation

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Publisher : Springer Science & Business Media
ISBN 13 : 9401112746
Total Pages : 679 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Polymer Photodegradation by : J.F. Rabek

Download or read book Polymer Photodegradation written by J.F. Rabek and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 679 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last two decades, the production of polymers and plastics has been increasing rapidly. In spite of developing new polymers and polymeric materials, only 40~60 are used commercially on a large scale. It has been estimated that half of the annual production of polymers is employed outdoors. The photochemical instability of most polymers limits their outdoor application as they are photodegraded quickly over periods from months to a few years. To the despair of technologists and consumers alike, photodegradation and environmental ageing of polymers occur much faster than can be expected from knowledge collected in laboratories. In order to improve polymer photostability there has been a very big effort during the last 30 years to understand the mechanisms involved in photodegradation and environmental ageing. This book represents the author's attempt, based on his 25 years' experience in research on photodegradation and photo stabilization, to collect and generalize a number of available data on the photodegradation of polymers. The space limitation and the tremendous number of publications in the past two decades have made a detailed presentation of all important results and data difficult. The author apologizes to those whose work has not been quoted or widely presented in this book. Because many published results are very often contradictory, it has been difficult to present a fully critical review of collected knowledge, without antagonizing authors. For that reason, all available theories, mechanisms and different suggestions have been presented together, and only practice can evaluate which of them are valid.

Environmental Barrier Coatings

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Publisher : MDPI
ISBN 13 : 3039365177
Total Pages : 168 pages
Book Rating : 4.0/5 (393 download)

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Book Synopsis Environmental Barrier Coatings by : Kang N. Lee

Download or read book Environmental Barrier Coatings written by Kang N. Lee and published by MDPI. This book was released on 2020-12-29 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global increase in air travel will require commercial vehicles to be more efficient than ever before. Advanced engine hot section materials are a key technology required to keep fuel consumption and emission to a minimum in next-generation gas turbines. Ceramic matrix composites (CMCs) are the most promising material to revolutionize gas turbine hot section materials technology because of their excellent high‐temperature properties. Rapid surface recession due to volatilization by water vapor is the Achilles heel of CMCs. Environmental barrier coatings (EBCs) is an enabling technology for CMCs, since it protects CMCs from water vapor. The first CMC component entered into service in 2016 in a commercial engine, and more CMC components are scheduled to follow within the next few years. One of the most difficult challenges to CMC components is EBC durability, because failure of EBC leads to a rapid reduction in CMC component life. Key contributors to EBC failure include recession, oxidation, degradation by calcium‐aluminum‐magnesium silicates (CMAS) deposits, thermal and thermo‐mechanical strains, particle erosion, and foreign object damage (FOD). Novel EBC chemistries, creative EBC designs, and robust processes are required to meet EBC durability challenges. Engine-relevant testing, characterization, and lifing methods need to be developed to improve EBC reliability. The aim of this Special Issue is to present recent advances in EBC technology to address these issues. In particular, topics of interest include but are not limited to the following: • Novel EBC chemistries and designs; • Processing including plasma spray, suspension plasma spray, solution precursor plasma spray, slurry process, PS-PVD, EB-PVD, and CVD; • Testing, characterization, and modeling; • Lifing.

Advances in Solid State Fermentation

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Publisher : Springer Science & Business Media
ISBN 13 : 9401706611
Total Pages : 641 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Advances in Solid State Fermentation by : S. Roussos

Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.

Artificial Intelligence in Society

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Publisher : OECD Publishing
ISBN 13 : 9264545190
Total Pages : 152 pages
Book Rating : 4.2/5 (645 download)

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Book Synopsis Artificial Intelligence in Society by : OECD

Download or read book Artificial Intelligence in Society written by OECD and published by OECD Publishing. This book was released on 2019-06-11 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The artificial intelligence (AI) landscape has evolved significantly from 1950 when Alan Turing first posed the question of whether machines can think. Today, AI is transforming societies and economies. It promises to generate productivity gains, improve well-being and help address global challenges, such as climate change, resource scarcity and health crises.

Poly(lactic acid) Science and Technology

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Publisher : Royal Society of Chemistry
ISBN 13 : 1849738793
Total Pages : 374 pages
Book Rating : 4.8/5 (497 download)

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Book Synopsis Poly(lactic acid) Science and Technology by : Alfonso Jiménez

Download or read book Poly(lactic acid) Science and Technology written by Alfonso Jiménez and published by Royal Society of Chemistry. This book was released on 2015 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the synthesis, characterisation, properties and applications of poly(lactic acid) science and technology covering scientific, ecological, social and economic issues.

Fire Retardancy of Polymers

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Publisher : Elsevier
ISBN 13 : 1845698584
Total Pages : 483 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Fire Retardancy of Polymers by : M Le Bras

Download or read book Fire Retardancy of Polymers written by M Le Bras and published by Elsevier. This book was released on 1998-01-01 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the following topics: Strategies; Intumescence: Mechanism studies; New intumescent polymetric materials; Flame retarded intumescent textiles; Intumescence - an environmentally friendly process?

Spectral and Total Emissivity

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Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Spectral and Total Emissivity by : Maynard P. Bauleke

Download or read book Spectral and Total Emissivity written by Maynard P. Bauleke and published by . This book was released on 1953 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dynamic Behavior of Materials, Volume 1

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Publisher : Springer
ISBN 13 : 3319224522
Total Pages : 265 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Dynamic Behavior of Materials, Volume 1 by : Bo Song

Download or read book Dynamic Behavior of Materials, Volume 1 written by Bo Song and published by Springer. This book was released on 2015-10-23 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1 represents the first of nine volumes of technical papers presented at the Society for Experimental Mechanics SEM 15th International Congress & Exposition on Experimental and Applied Mechanics, held at Costa Mesa, California, June 8-11, 2015. The full set of proceedings also includes volumes on: Challenges in Mechanics of Time Dependent Materials, Advancement of Optical Methods in Experimental Mechanics, Experimental and Applied Mechanics 16th International Symposium on MEMS and Nanotechnology, 5th International Symposium on the Mechanics of Biological Systems and Materials, International Symposium on the Mechanics of Composite and Multi-functional Materials, Fracture, Fatigue, Failure and Damage Evolution; and Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems.

Activated Carbon

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Publisher : Elsevier
ISBN 13 : 0080455964
Total Pages : 555 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Activated Carbon by : Harry Marsh

Download or read book Activated Carbon written by Harry Marsh and published by Elsevier. This book was released on 2006-07-12 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen an expansion in speciality uses of activated carbons including medicine, filtration, and the purification of liquids and gaseous media. Much of current research and information surrounding the nature and use of activated carbon is scattered throughout various literature, which has created the need for an up-to-date comprehensive and integrated review reference. In this book, special attention is paid to porosities in all forms of carbon, and to the modern-day materials which use activated carbons - including fibres, clothes, felts and monoliths. In addition, the use of activated carbon in its granular and powder forms to facilitate usage in liquid and gaseous media is explored. Activated Carbon will make essential reading for Material Scientists, Chemists and Engineers in academia and industry. - Characterization of porosity - The surface chemistry of the carbons - Methods of activation and mechanisms of adsorptio - Computer modelling of structure and porosity within carbons - Modern instrumental analytical methods

Model Cellulosic Surfaces

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Publisher : OUP USA
ISBN 13 : 9780841269651
Total Pages : 0 pages
Book Rating : 4.2/5 (696 download)

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Book Synopsis Model Cellulosic Surfaces by : Maren Roman

Download or read book Model Cellulosic Surfaces written by Maren Roman and published by OUP USA. This book was released on 2010-04-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the different methods of model cellulosic surface preparation and presents recent studies on the properties of these surfaces. The topics covered are considered relatively new and would serve as the launch pad for further research in this area.

Geology and Geotechnical Properties of Laterite Gravel

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Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Geology and Geotechnical Properties of Laterite Gravel by : Ellis L. Krinitzsky

Download or read book Geology and Geotechnical Properties of Laterite Gravel written by Ellis L. Krinitzsky and published by . This book was released on 1976 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials

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Publisher : Springer
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials by : B. Catoire

Download or read book Electron Spin Resonance (ESR) Applications in Organic and Bioorganic Materials written by B. Catoire and published by Springer. This book was released on 1992-02-27 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publication partially sponsored by MRT (French Ministry of Research and Technology."

Government at a Glance Southeast Asia 2019

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Publisher : OECD Publishing
ISBN 13 : 9264305912
Total Pages : 132 pages
Book Rating : 4.2/5 (643 download)

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Book Synopsis Government at a Glance Southeast Asia 2019 by : OECD

Download or read book Government at a Glance Southeast Asia 2019 written by OECD and published by OECD Publishing. This book was released on 2019-09-10 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Government at a Glance Southeast Asia 2019 is the first edition in the Government at a Glance series for the region. It provides the latest available data on public administrations in the 10 ASEAN member countries: Brunei Darussalam, Cambodia, Indonesia, Lao People’s Democratic Republic, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Viet Nam.

OECD Investment Policy Reviews: Uruguay

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Publisher : OECD Publishing
ISBN 13 : 9264489452
Total Pages : 226 pages
Book Rating : 4.2/5 (644 download)

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Book Synopsis OECD Investment Policy Reviews: Uruguay by : OECD

Download or read book OECD Investment Policy Reviews: Uruguay written by OECD and published by OECD Publishing. This book was released on 2021-07-12 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: In July 2020, the Investment Committee recommended to Council to invite Uruguay to become the 50th adherent to the OECD Declaration on International Investment and Multinational Enterprises. This OECD Investment Policy Review of Uruguay documents the progress made in recent years to align investment policies with the national development strategy in pursuit of the Sustainable Development Goals (SDGs).

Emulsion Science

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Publisher : Springer
ISBN 13 : 3540708200
Total Pages : 148 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Emulsion Science by : Jerôme Bibette

Download or read book Emulsion Science written by Jerôme Bibette and published by Springer. This book was released on 2003-07-01 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emulsions occur either as end products or during the processing of products in a huge range of areas including the food, agrochemical, pharmaceuticals, paints and oil industries. As end products, emulsions allow to avoid organic solvent in processing hydrophobic coatings. Emulsion technology is a suitable approach to vehicle viscous phases. It is also a remarkable mean of targeting actives or capturing specific species. The range of applications of emulsions progresses and their manufacturing becomes more and more sophisticated. Besides this broad domain of technological interest, emulsions are raising a variety of fundamental questions at the frontier between physic and chem istry. Indeed, as a class of soft colloidal materials, emulsions science is linked to various aspects of these disciplines: phase transitions, surface forces and wetting, metastability and hydrodynamic instabilities, mechanical properties and flow. The aim of this book is to review the main important concepts governing emulsion science. In Chapter 2, repulsive interactions between liquid films are discussed as well as adhesive interaction related to wetting. In Chap ter 3, consequences of weak and strong attractions are presented, related to the well accepted liquid solid transition analogy. In Chapter 4, the basics of both bulk compressibility and shear elasticity are presented, the role of disorder being the most important aspect of the elastic behavior of these soft systems. In Chapter 5 the central question of the emulsion lifetime related to metastability is discussed.

Thermal Analysis: Advances in instrumentation

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Publisher :
ISBN 13 :
Total Pages : 656 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Thermal Analysis: Advances in instrumentation by : Hans G. Wiedemann

Download or read book Thermal Analysis: Advances in instrumentation written by Hans G. Wiedemann and published by . This book was released on 1972 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Encapsulations

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Publisher : Academic Press
ISBN 13 : 0128043784
Total Pages : 926 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Encapsulations by : Alexandru Grumezescu

Download or read book Encapsulations written by Alexandru Grumezescu and published by Academic Press. This book was released on 2016-05-27 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encapsulations, a volume in the Nanotechnology in the Agri-Food Industry series,presents key elements in establishing food quality through the improvement of food flavor and aroma. The major benefits of nanoencapsulation for food ingredients include improvement in bioavailability of flavor and aroma ingredients, improvement in solubility of poor water-soluble ingredients, higher ingredient retention during production process, higher activity levels of encapsulated ingredients, improved shelf life, and controlled release of flavor and aroma. This volume discusses main nanoencapsulation processes such as spray drying, melt injection, extrusion, coacervation, and emulsification. The materials used in nanoencapsulation include lipids, proteins, carbohydrates, cellulose, gums, and food grade polymers. Applications and benefits of nanoencapsulation such as controlled release, protections, and taste masking will be explained in detail. - Includes the most up-to-date information on nanoencapsulation and nanocontainer-based delivery of antimicrobials - Presents nanomaterials for innovation based on scientific advancements in the field - Provides control release strategies to enhance bioactivity, including methods and techniques for research and innovation - Provides useful tools to improve the delivery of bioactive molecules and living cells into foods