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Gran Área: Ciencias exactas y naturales
Área: Ciencias químicas
Subárea: Ciencias Químicas (general)

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Resultado: 309 registro(s)

17848

Efficient Methods for Preparing Silicon Compounds

 

Academic Press, 2016.

ISBNs 9780128035306

Colección: ScienceDirect

Resumen (en inglés):

Efficient Methods for Preparing Silicon Compounds is a unique and valuable handbook for chemists and students involved in advanced studies of preparative chemistry in academia and industry. Organized by the various coordination numbers (from two to six) of the central silicon atom of the reported compounds, this book provides researchers with a handy and immediate reference for any compound or properties needed in the area.

Edited by a renowned expert in the field, each chapter explores a different type of compound, thoroughly illustrated with useful schemes and supplemented by additional references. Knowledgeable contributors report on a broad range of compounds on which they have published and which are already used on a broad scale or have the potential to be used in the very near future to develop a new field of research or application in silicon chemistry.

  • Includes contributions and edits from leading experts in the field
  • Includes detailed chemical schemes and useful references for each preparative method
  • Organized by the coordination numbers of the central silicon atom for each compound for easy navigation
  • Serves as a go-to primer for researchers in novel compositions of silicon matter


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23897

Electrocatalysis in Fuel Cells

 

MDPI AG - Multidisciplinary Digital Publishing Institute, 2016.

Título de la serie/colección: Catalysts. ISSN 2073-4344,

ISBNs 9783038422341 9783038422198

Colección: Directory of Open Access Books


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17858

Electrocorrosion and Protection of Metals

General Approach with Particular Consideration to Electrochemical Plants

 

Elsevier, 2009.

ISBNs 9780444532954

Colección: ScienceDirect

Resumen (en inglés):

Electrocorrosion, the corrosion of metallic constructions by external currents, is the most significant factor in conductive aggressive environments. Corrosion of underground and underwater metal constructions by stray currents has been comprehensively studied in the past decades and is considered here only in the form of a review. The primary attention is on corrosion, by external anodic (mainly) and cathodic currents, of metal constructions in the highly aggressive environments typical for electrochemical plants, where penetration of the external currents (leakage currents) from the electrolytic baths into metal constructions is unavoidable.   A new approach to the problem of electrocorrosion protection of passive structural metals is considered in this book,  keeping the metals attacked by external currents in the boundaries of their passive field. The systems, developed in accordance with this approach, are based on the modification of existing and elaboration of new methods of electrocorrosion protection. These systems take into account corrosion and electrochemical characteristics of the aggressive media (redox potential, conductivity etc.) and of the passive metal (corrosion and activation potentials, current density in a passive state, etc) as well as the sizes and distribution character of the external currents.

The book covers analysis of leakage current distributions in electrochemical plants, their influence, methods to estimate corrosion stability of metallic structures subject to external currents and presents many concrete examples of the successful introduction of corrosion protection systems in operating plants.

  • A new approach to protection from electrocorrosion, taking into account the passive state of the metal in aggressive media
  • Newly developed and modifications of well known methods of electrocorrosion protection are presented.
  • Systematized data on electrocorrosion and protection of metals, especially in electrochemical plants, allow corrosion engineers, researchers and personnel maintaining the equipment of electrochemical plants to analyze the corrosion state of  metallic equipment and prevent electrocorrosion.


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3609

Electronic Irradiation of Foods

An Introduction to the Technology

 

13th ed. Boston, MA: Springer Science+Business Media, 2005.

Título de la serie/colección: Food Engineering Series. ISSN 1571-0297,

ISBNs 9780387237848 9780387283869

Colección: SpringerLink


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21235

Encyclopedia of Mass Spectrometry, The

Vol. 9

 

Elsevier, 2016.

ISBNs 9780080438481

Colección: ScienceDirect

Resumen (en inglés):

Volume 9: Historical Perspectives, Part A: The Development of Mass Spectrometry of The Encyclopedia of Mass Spectrometry describes and analyzes the development of many aspects of Mass Spectrometry. Beginning with the earliest types of Mass Analyzers, Historical Perspectives explores the development of many different forms of analytical processes and methods. The work follows various instruments and interfaces, to the current state of detectors and computerization. It traces the use of Mass Spectrometry across many different disciplines, including Organic Chemistry, Biochemistry, and Proteomics; Environmental Mass Spectrometry; Forensic Science; Imaging; Medical Monitoring and Diagnosis; Earth and Planetary Sciences; and Nuclear Science.

Finally, the book covers the history of manufacturers and societies as well as the professionals who form the Mass Spectrometry community.

Also available: Volume 9: Historical Perspectives, Part B: Notable People in Mass Spectrometry briefly reviews the lives and works of many of the major people who carried out this development.

  • Preserves the history and development of Mass Spectrometry for use across scientific fields
  • Written and edited by Mass Spectrometry experts
  • Coordinates with Volume 9: Historical Perspectives, Part B: Notable People in Mass Spectrometry, a collection of short biographies on many of the major people who carried out this development


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21236

Encyclopedia of Mass Spectrometry, The

Vol. 9

 

Elsevier, 2015.

ISBNs 9780081003794

Colección: ScienceDirect

Resumen (en inglés):

Volume 9: Historical Perspectives, Part B: Notable People in Mass Spectrometry of The Encyclopedia of Mass Spectrometry briefly reviews the lives and works of many of the major people who carried out this development, providing insights into the history of mass spectrometry applications through the personal stories of pioneers and innovators in the field.

The book presents biographies of notable contributors, including Nobel Prize winners J. J. Thomson, Francis W. Aston, Wolfgang Paul, John B. Fenn, and Koichi Tanaka, along with other luminaries in the field, including Franz Hillenkamp, Catherine Clarke Fenselau, Alfred O. C. Nier, and many more, discussing not only the instruments and their uses, but also providing interesting information on the careers, characters, and life stories of the people who did the work.

  • Highlights over 120 innovators in mass spectrometry, including several Nobel Prize winners
  • Discusses instrumentation and their uses, also providing interesting information on the careers, characters, and life stories of the people who did the work
  • Offers unique insight into the careers and personalities of luminaries in the field
  • Coordinates with Volume 9: Historical Perspectives, Part A: The Development of Mass Spectrometry, an overview of mass spectrometry development and progress
  • Ideal reference for those interested in a wide variety of topics, including analytical chemistry and chemical analysis, amongst others


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17969

Engineering Biosensors

Kinetics and Design Applications

 

Academic Press, 2002.

ISBNs 9780126137637

Colección: ScienceDirect

Resumen (en inglés): Biosensors are becoming increasingly important bioanalytical tools in the pharmaceutical, biotechnology, food, and other consumer oriented industries. The technology, though well developed in Europe, is slowly developing and has begun to generate interest in the United States only over the past couple of years. Research is now being directed toward the development of biosensors that are versatile, economical, and simple to use.

Engineering Biosensors is a comprehensive introduction to biosensors that includes numerous illustrations to further explain the main concepts and practical examples from existing literature. It describes what biosensors are, where they are used, and how their performance is affected by existing surface characteristics.

A better understanding of biosensors, as provided by this book, will greatly assist in the design of new as well as the improvement of existing biosensors. Readers are also provided with invaluable and hard-to-find data on the economics of the biosensor market to assist them in better understanding the market and where it is heading.


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17979

Enological Chemistry

 

Academic Press, 2012.

ISBNs 9780123884381

Colección: ScienceDirect

Resumen (en inglés):

Enological Chemistry is written for the professional enologist tasked with finding the right balance of compounds to create or improve wine products. Related titles lack the appropriate focus for this audience, according to reviewers, failing either to be as comprehensive on the topic of chemistry, to include chemistry as part of the broader science of wine, or targeting a less scientific audience and including social and historical information not directly pertinent to the understanding of the role of chemistry in successful wine production.

The topics in the book have been sequenced identically with the steps of the winemaking process. Thus, the book describes the most salient compounds involved in each vinification process, their properties and their balance; also, theoretical knowledge is matched with its practical application. The primary aim is to enable the reader to identify the specific compounds behind enological properties and processes, their chemical balance and their influence on the analytical and sensory quality of wine, as well as the physical, chemical and microbiological factors that affect their evolution during the winemaking process.

  • Organized according to the winemaking process, guiding reader clearly to application of knowledge
  • Describes the most salient compounds involved in each step enabling readers to identify the specific compounds behind properties and processes and effectively work with them
  • Provides both theoretical knowledge and practical application providing a strong starting point for further research and development


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18049

Essential Chemistry for Formulators of Semisolid and Liquid Dosages

 

Academic Press, 2016.

ISBNs 9780128010242

Colección: ScienceDirect

Resumen (en inglés): A needed resource for pharmaceutical scientists and cosmetic chemists, Essential Chemistry for Formulators of Semisolid and Liquid Dosages provides insight into the basic chemistry of mixing different phases and test methods for the stability study of nonsolid formulations. The book covers foundational surface/colloid chemistry, which forms the necessary background for making emulsions, suspensions, solutions, and nano drug delivery systems, and the chemistry of mixing, which is critical for further formulation of drug delivery systems into semisolid (gels, creams, lotions, and ointments) or liquid final dosages. Expanding on these foundational principles, this useful guide explores stability testing methods, such as particle size, rheological/viscosity, microscopy, and chemical, and closes with a valuable discussion of regulatory issues. Essential Chemistry for Formulators of Semisolid and Liquid Dosages offers scientists and students the foundation and practical guidance to make and analyze semisolid and liquid formulations.

  • Unique coverage of the underlying chemistry that makes possible stable dosages
  • Quality content written by experienced experts from the drug development industry
  • Valuable information for academic and industrial scientists developing topical and liquid dosage formulations for pharmaceutical as well as skin care and cosmetic products


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18061

Essentials of Botanical Extraction

Principles and Applications

 

Academic Press, 2015.

ISBNs 9780128023259

Colección: ScienceDirect

Resumen (en inglés):

Essentials of Botanical Extraction: Principles and Applications provides a unique, single source of valuable information on the various botanical extraction methods available, from conventional to the use of green and modern extraction technologies including ultrasounds, microwaves, pressurized liquids, and supercritical fluids. Most extracts obtained from botanicals are often poorly characterized with unidentified active or inactive constituents. A wise selection of an extraction strategy is vital to drug discovery from medicinal plants as extraction forms the basic first step in medicinal plant research. This book also explores the mathematical hypotheses and innovations in botanical extractions and analyzes different post extraction operations so that dependency on serendipity is reduced and the same be converted into programmed drug discovery.

  • Reviews the history and current state of natural product drug discovery and development, highlighting successes and current issues
  • Explains the application of chemometric tools in extraction process design and method development
  • Introduces process intensification as applied to the processing of medicinal plant extracts for rapid and cost-effective extraction


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