Download or read book Studies on Natural Waxes Using Surface Chemistry Techniques written by A. R. Gilby and published by . This book was released on 1955 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural and Synthetic Waxes written by Ernst Krendlinger and published by John Wiley & Sons. This book was released on 2023-01-10 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural and Synthetic Waxes A compilation of all relevant information for the production and use of waxes in technical applications Waxes are among the oldest organic substances used by mankind. Before all others, beeswax is known to have played a role in human history for thousands of years. But over time, many other wax species have been detected and exploited, and prepared for different utilizations. Today, we possess knowledge of a great variety of different types of waxes. Unfortunately, there still is no broadly accepted definition of a wax: for the relatively few wax chemists, waxes are usually defined by their physico-chemical properties more than by their chemical constitution. Waxes are not uniform but oligomeric and polymeric substances, not simply describable with a chemical formula. The realm of waxes encompasses fully or partly natural, refined, partly or fully synthetic products, which can be extended by “wax-like” products which do not fulfil all definition criteria. Waxes are offered in different forms like pellets, granules, powders, or micropowders. Their number of technical applications runs into thousands. However, waxes in most cases are just adjuvants or additives, and with few exceptions like candles not known to a broader public. Only few publications over the last decades tried to present a more comprehensive overview of heir chemistry, chemical composition, their physical and analytical properties, their applications, and their sometimes astonishing history. Based on personal experience and expertise, the authors intend to present an overview on the main classes of waxes, their origin, history, future, and potential fate. Economical aspects like market size and development, ecological impacts and challenges, and regulatory issues are also addressed. Waxes are indispensable products in everyday life and in industry and technology, though mostly not even visible or distinguishable to experts. They deserve more than the role of a “poor cousin” in chemistry and technology.
Download or read book Research Methods and Applications in Chemical and Biological Engineering written by Ali Pourhashemi and published by CRC Press. This book was released on 2019-07-23 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research-oriented book presents up-to-date experimental methods currently used in research for many branches of chemical and biological engineering. The book surveys essential ideas and research methodologies, concentrating on experiments used in applications rather than on the fine points of rigorous mathematics. Examples of important applications are reviewed in sufficient detail to provide the reader with a critical understanding of context and research methodology. The volume presents a broad spectrum of chapters in the various branches of chemical and biological engineering that demonstrate key developments in these rapidly changing fields. Chapters explore the design, development, operation, monitoring, control, and optimization of chemical, physical and biological processes. Case studies are included in some chapters, building a real-world connection.
Download or read book Chemistry and Biochemistry of Natural Waxes written by P. E. Kolattukudy and published by Elsevier Science & Technology. This book was released on 1976 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to natural waxes. Mammalian waxes. Marine waxes. Bird waxes. Biochemistry of bird waxes. Insect waxes. Chemistry of waxes of higher plants. Biochemistry of plant waxes. Algal and fungal waxes. Basterial waxes.
Download or read book Strategies and Advanced Techniques for Marine Pollution Studies written by C.S. Giam and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: A distinction between contamination and pollution is useful when we wish to consider what strategies to adopt in researching the impact of anthropogenic activities on the marine environment. Contamination strictly refers to the chemical burden imposed on the system and is evaluated in terms of the concentrations of chemical compounds in various abiotic (e. g water, suspended particulate matter, sediments) and biotic (plant and animal, pelagic and benthic) components. The concept of pollution, on the other hand, infers an assessment of biological response to the measured levels of contamination. This response may be measured at various levels of biological organisation, from molecular events within the cell to changes in such ecosystem properties as nutrient flux and biological productivity. Such measures of biological response need not infer any value judgements regarding putative damage or disturbance to the natural systems, although the biologist will usually have in mind a reference point of normality with which to compare the measured response; departure from this "normality" may then provide a quantitiative index of disturbance. The challenge to scientists engaged in research into marine contamination and pollution is to weld the chemical and biological elements together (always with reference also to the physical features of the environment) so as to provide a coherent framework for the quantitative evaluation of environmental response.
Download or read book Waxes and Wax Like Materials written by George W. Le Maire and published by . This book was released on 2013-02 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry and Technology of Waxes written by Albin Henry Warth and published by . This book was released on 1956 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical components of waxes. The natural waxes. Fossil waxes, earth waxes, peat waxes, montana waxes, and lignite paraffins. Petroleum waxes. Synthetic waxes. Commercial modified, blended, and compounded waxes. Emulsiable waxes, waxy alcohols and acids, metallic soaps. Methods for determining the constants of waxes. Was technology - uses in industry.
Download or read book Joint Volumes of Papers Presented to the Legislative Council and Legislative Assembly written by New South Wales. Parliament and published by . This book was released on 1955 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes various departmental reports and reports of commissions. Cf. Gregory. Serial publications of foreign governments, 1815-1931.
Download or read book Commercial Waxes Natural and Synthetic Including Properties Uses Methods of Handling and Formulas for Making Commercial Wax Compositions written by Harry Bennett and published by . This book was released on 1944 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Plasma Treatment of Textile Surfaces written by Shahid Ul Islam and published by Elsevier. This book was released on 2024-01-24 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Plasma Treatment of Textile Surfaces offers a detailed overview on the use of plasma in natural and synthetic textiles, and also explores recent applications in technical textiles including composites, ballistic performance, functionalization and textile wastewater treatment. This promising technology can alter the surface properties of textiles without having a significant effect on their bulk properties, leading to potential improvements to the scouring, de-sizing, dyeing, finishing, printing, and laminating processes among others. Drawing on an international team of contributors from industry as well as academia, this important book is bringing these innovative sustainable plasma treatments to textile and polymer scientists everywhere working in the field of textile functionalization. Provides detailed technical descriptions of cutting-edge applications of plasma in nanotechnology, biotechnology, and other fields Describes the different kinds of plasma treatment equipment and compares their use for different effects Starts with overviews of basic information such as how to determine surface properties
Download or read book Coal Flotation and Fine Coal Utilization written by J. Laskowski and published by Gulf Professional Publishing. This book was released on 2001-07-04 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Full text e-book available as part of the Elsevier ScienceDirect Earth and Planetary Sciences subject collection.
Download or read book Advances in Phytochemistry Textile and Renewable Energy Research for Industrial Growth written by Charles Nzila and published by CRC Press. This book was released on 2022-04-06 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Phytochemistry, Textile, & Renewable Energy Technologies for Sustainable Development (ICPTRE 2020) was hosted by the World bank funded Africa Centre of Excellence in Phytochemicals, Textile and Renewable Energy (ACEII-PTRE) based at Moi University in conjunction with Donghua University, China and the Sino–Africa International Symposium on Textiles and Apparel (SAISTA). The theme of the conference was Advancing Science, Technology and Innovation for Industrial Growth. The research relationships between universities and industry have enabled the two entities to flourish and, in the past, have been credited for accelerated sustainable development and uplifting of millions out poverty. ICPTRE 2020 therefore provided a platform for academic researchers drawn from across the world to meet key industry professionals and actively share knowledge while advancing the role of research in industrial development, particularly, in the developing nations. The conference also provided exhibitors with an opportunity to interact with professionals and showcase their business, products, technologies and equipment. During the course of the conference, industrial exhibitions, research papers and presentations in the fields of phytochemistry, textiles, renewable energy, industry, science, technology, innovations and much more were presented.
Download or read book Bibliography of Mass Spectroscopy Literature for 1970 written by and published by . This book was released on 1972 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analytical Chemistry for the Study of Paintings and the Detection of Forgeries written by Maria Perla Colombini and published by Springer Nature. This book was released on 2022-09-08 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forgeries present a daunting problem to art historians, museums, galleries and curators who face challenges in determining the authenticity of paintings. Recent progress in science has led to the development of new methods for investigating works of art, and can provide new insights into the materials found in paintings. The rise in the value of paintings together with the knowledge and skills of forgers highlights the need to develop reliable scientific procedures to identify fakes. Given the complexity of materials in paintings and the convergence of various disciplines, a methodological approach for nvestigations of paintings is based on art historical, curatorial, aesthetic, technical and scientific evaluation. In this book sophisticated digital and analytical techniques are reviewed for the identification of materials (pigments, binders, varnishes, adhesives) and the physical characteristics of paintings such as brushstrokes, craquelure and canvas weaves. This book presents an updated overview of both non-invasive and micro-invasive techniques that enable the material characterization of paintings. The materials constituting a painting are reviewed, as are ways that changes in materials over time can provide insights into chronology and physical history. State-of the art digital metods including multi and hyper-spectral imaging and computational approaches to data treatment will be presented. Analytical techniques developed and optimized to characterize binders, varnishes, and pigments are reviewed, focusing on materials which can provide information on ageing or provenance. Case studies of applications of synchrotron-based methods and the analysis of paintings are given, as are chapters devoted to legal aspects related to authenticity. Chapter 1 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book Soil Water Repellency written by C.J. Ritsema and published by Elsevier. This book was released on 2012-12-02 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has become clear that soil water repellency is much more wide-spread than formerly thought. Water repellency has been reported in most continents of the world for varying land uses and climatic conditions. Soil water repellency often leads to severe runoff and erosion, rapid leaching of surface-applied agrichemicals, and losses of water and nutrient availability for crops. At present, no optimum management strategies exist for water repellent soils, focusing on minimizing environmental risks while maintaining crop production. The book starts with a historical overview of water repellency research, followed by seven thematic sections covering 26 research chapters. The first section discusses the origin, the second the assessment, and the third the occurrence and hydrological implications of soil water repellency. The fourth section is devoted to the effect of fire on water repellency, section five deals with the physics and modeling of flow and transport in water repellent soils, section six presents amelioration techniques and farming strategies to combat soil water repellency, and section seven concludes the book with an extensive bibliography on soil water repellency.
Download or read book Geologic Studies in Alaska by the U S Geological Survey During 1986 written by and published by . This book was released on 1987 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Manufacturing Processes Intelligent Methods and Systems in Production Engineering written by Andre Batako and published by Springer Nature. This book was released on 2022-04-19 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book forms an excellent basis for the development of intelligent manufacturing system for Industry 4.0, digital and distributed manufacturing, and factories for future. This book of new developments and advancement in intelligent control and optimization system for production engineering serves as a good companion to scholars, manufacturing companies, and RTO to improve the efficiency of production systems.
