Written by internationally recognized experts in the field with academic as well as industrial experience, this book concisely yet systematically covers all aspects of the topic. The monograph focuses on the optoelectronic behavior of organic solids and their application in new optoelectronic devices. It covers organic field-effect and organic electroluminescent materials and devices, organic photonics, materials and devices, as well as organic solids in photo absorption and energy conversion. Much emphasis is laid on the preparation of functional materials and the fabrication of devices, from materials synthesis and purification, to physicochemical properties and the basic processes and working principles of the devices. The only book to cover fundamentals, applications, and the latest research results, this is a handy reference for both researchers and those new to the field. From the contents: * Electronic process in organic solids * Organic/polymeric semiconductors for field-effect transistors * Organic/polymeric field-effect transistors * Organic circuits and organic single molecular transistors * Polymer light-emitting Diodes (PLEDs): devices and materials * Organic solids for photonics * Organic photonic devices * Organic solar cells based on small molecules * Polymer solar cells * Dye-sensitized solar cells (DSSCs) * Organic thermoelectric power devices
Allen J. Ellender, born in 1890 on a sugar plantation in Terrebonne Parish, Louisiana, rose to become one of the most dominant men in the U.S. Senate. This biography, based on prolonged examination of the voluminous Ellender Papers and extensive research in other primary and secondary sources, including interviews with people who knew Ellender during various stages of his lengthy career, makes an important contribution to our understanding of Louisiana and national politics during much of this century. Ellender began life in a farm family and never lost his close ties to rural Louisiana. Still, he sought a career as a lawyer and served as city attorney and district attorney before being elected to the Louisiana state legislature in 1924. Originally an opponent of Huey Long, Ellender converted to Longism after Huey was elected governor in 1928. But because he refused to condone questionable oil-leasing practices on state lands, he was bypassed as Long’s state political heir in the thirties. He was elected instead to the U.S. Senate, where he served until his death in 1972. In Senator Allen Ellender of Louisiana, Thomas A. Becnel methodically traces the extended career of this contradictory politician—a man who, though essentially a conservative, was surprisingly liberal on many issues. He supported progressive legislation in areas such as education, public housing, censorship, and the separation of church and state. He was also one of the first senators to criticize his colleague Joseph McCarthy. Yet throughout his career he remained a staunch advocate of racial segregation. During Ellender’s long tenure in the Senate, in which he served under Presidents Roosevelt, Truman, Eisenhower, Kennedy, Johnson, and Nixon, through the Great Depression, World War II, the Cold War, McCarthyism, the Korean conflict, the civil rights movement, and the Vietnam War, he was intimately involved in decisions and debates that have shaped the recent history of the country. Becnel astutely places Ellender in the context of the history of his time and the social, economic, and political milieu of his state. The result is a careful, balanced portrait of one of the most influential legislators of this century.
Greenhouse gases, global warming, thinning ozone layers—understanding the Earth's climatic changes is one of today's most pressing international concerns. How fast has the climate changed? Where and why is it changing? What is the impact of climate change on our ecosystems, coastal regions, glaciers, forests, and lakes, and even on the evolution of our own species? This introduction to the rapidly emerging field of paleoclimatology explains the patterns and processes in the history of the Earth's climate to answer such essential questions. Using the geologic records of ocean and lake sediment, ice cores, corals, and other natural archives, Principles of Paleoclimatology describes the history of the Earth's climate—the ice age cycles, sea level changes, volcanic activity, changes in atmosphere and solar radiation—and the resulting, sometimes catastrophic, biotic responses. These paleoclimate records provide a baseline against which we can compare modern climate trends. Designed to give a fundamental background—including both history and methodology—to the discipline of paleoclimatology, this book is the first to advance our understanding of how climate change develops, how those changes are detected, and how the climate of the past can shape the climate of the future.
Currently this is the book providing a thorough introduction and a unified theoretical basis for the interpretation of equilibrium transport processes in amorphous hydrogenated tetrahydrally coordinated semiconductors - a topic of great interest to physicists and material scientists (first devices for practical applications are already being manufactured). Most of the relevant literature is reviewed with particular emphasis on the approach developed by the authors. It explains most of the experimental data and allows the extraction of information about microscopic transport processes and parameters from equilibrium transport data. This work treats electronic transport in the mentioned type of semiconductors and in particular in a-Si:H and a-Ge:H. From elementary concepts the theory is developed towards higher degrees of completeness and sophistication. Further refinements for coping with the complexity of real systems are given. The comparison of theory with experiment is an important part of the book.
Das Buch beschreibt die Grundlagen der Raumfahrt und erklärt Einzelheiten der technischen Umsetzung. Diese spielen sich im Randbereich des technisch Machbaren ab. Es werden die Randbedingungen der Raumfahrt erklärt und wesentliche Elemente der Raketenantriebe und Energieversorgung näher beschrieben. Die Erreichbarkeit der Himmelskörper wird tabellarisch dokumentiert und im Ausblick wird als größte Vision der Raumfahrt, Menschen zum Planeten Mars zu bringen, erläutert. Im Anhang befindet sich u.a. eine umfangreiche Formelsammlung. Aufbau: Grundlagen Antriebssysteme Missionen Materialien und Prozesse Produkte und Projekte Ausblick Formelsammlung
The surge of interest in cannabis-based medicinal products has put an extremely high demand on testing capabilities, particularly for contaminants such as heavy metals, which are naturally taken up through the roots of the plants from the soil, growing medium, and fertilizers but can also be negatively impacted by the grinding equipment and extraction/distillation process. Unfortunately, many state regulators do not have the necessary experience and background to fully understand all the safety and toxicological issues regarding the cultivation and production of cannabis and hemp products on the market today. Measuring Heavy Metal Contaminants in Cannabis and Hemp offers a comprehensive guide to the entire cannabis industry for measuring elemental contaminants in cannabis and hemp. For testing labs, it describes fundamental principles and practical capabilities of ICP-MS and other AS techniques for measuring heavy metals in cannabis. For state regulators, it compares maximum contaminant limits of heavy metals with those for federally regulated pharmaceutical materials. For cultivators and processors, it helps them to better understand the many sources of heavy metals in cannabis. And for consumers of medical cannabis, it highlights the importance of choosing cannabis products that are safe to use. Other key topics include: The role of other analytical techniques for the comprehensive testing of cannabis products Tips to optimize analytical procedures to ensure the highest quality data Guidance on how to characterize elemental contaminants in vaping liquids and aerosols Suggestions on how to reduce errors using plasma spectrochemistry The role of certified reference materials to validate standard methods Easy-to-read sections on instrumental hardware components, calibration and measurement protocols, typical interferences, routine maintenance, and troubleshooting procedures Written with the cannabis testing community in mind, this book is also an invaluable resource for growers, cultivators, processors, testers, regulators, and even consumers who are interested in learning more about the potential dangers of heavy metal contaminants in cannabis and hemp.
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