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A benchmark publication, the first edition of the Phosphor Handbook, published in 1998, set the standard for references in the field. The second edition, updated and published in 2007, began exploring new and emerging fields. However, in the last 14 years, since the second edition was published, many notable advances and broader phosphor applications have occurred. Completely revised, updated, and expanded into three separate volumes, this third edition of the Handbook covers the most recent developments in phosphor research, characterization, and applications. This volume on ‘Experimental Methods for Phosphor Evaluation and Characterization’ addresses the theoretical and experimental me...
This book describes in detail the main concepts of theoretical spectroscopy of transition metal and rare-earth ions. It shows how the energy levels of different electron configurations are formed and calculated for the ions in a free state and in crystals, how group theory can help in solving main spectroscopic problems, and how the modern DFT-based methods of calculations of electronic structure can be combined with the semi-empirical crystal field models. The style of presentation makes the book helpful for a wide audience ranging from graduate students to experienced researchers. Performance of optical materials crucially depends on the impurity ions intentionally introduced into the crystalline host materials. The color of these materials, their emission and absorption spectra can be understood by analyzing the relations between the electronic properties of impurity ions and host crystal structure, which constitutes the main content of this book. It describes in detail the main concepts of theoretical spectroscopy of transition metal and rare earth ions.
The use of different foods, herbs, and spices to treat or prevent disease has been recorded for thousands of years. Egyptian papyrus, hieroglyphics and ancient texts from the Middle East have described the cultivation and preparations of herbs and botanicals to “cure the sick.” There are even older records from China and India. Some ancient scripts describe the use of medicinal plants which have never been seen within European cultures. Indeed, all ancient civilizations have pictorial records of different foods, herbs, and spices being used for medical purposes. However, there are fundamental questions pertaining to the scientific evidence for the use of these agents or their extracts in...
This publication is the long-awaited complement to Michael Loewe's acclaimed Biographical Dictionary of the Qin, Former Han and Xin Periods (2000). With more than 8,000 entries, based upon historical records and surviving inscriptions, the comprehensive Biographical Dictionary of Later Han to the Three Kingdoms (23-220 AD) now provides information on men and women of the Chinese world who lived at the time of Later (or Eastern) Han, from Liu Xiu, founding Emperor Guangwu (reg. 24-57), to the celebrated warlord Cao Cao (155-220) at the end of the dynasty. The entries, including surnames, personal names, styles and dates, are accompanied by maps, genealogical tables and indexes, with lists of books and special accounts of women. These features, together with the convenient surveys of the history and the administrative structure of the dynasty, will make Rafe de Crespigny's work an indispensable tool for any further serious study of a significant but comparatively neglected period of imperial China.
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