Download or read book Application of Principal Components Analysis to the Study of Silicate Crystal Structures written by Rossman F. Giese and published by . This book was released on 1975 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principal components analysis (PCA) is a quasi-statistical technique for transforming a given set of variables or observations into a new set of linearly transformed variables. The new set has the advantage that most of the variance of the original observations can be accounted for with fewer variables, thus simplifying interpretation of the variance. PCA has been applied to (1) micas using only interatomic distances and (2) clinopyroxenes using both interatomic distances and angles. In all cases, at most three new variables were necessary to account for 90 percent or more of the original total variance. Each of these new variables can be interpreted in terms of distortions of the crystal structures of the two groups of minerals. One of the advantages of PCA is the quantitative evaluation of specific crystal structure distortions.
Download or read book Application of Principal Components Analysis to the Study of Silicate Crystal Structures written by Rossman F. Giese and published by . This book was released on 1975 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principal components analysis (PCA) is a quasi-statistical technique for transforming a given set of variables or observations into a new set of linearly transformed variables. The new set has the advantage that most of the variance of the original observations can be accounted for with fewer variables, thus simplifying interpretation of the variance. PCA has been applied to (1) micas using only interatomic distances and (2) clinopyroxenes using both interatomic distances and angles. In all cases, at most three new variables were necessary to account for 90 percent or more of the original total variance. Each of these new variables can be interpreted in terms of distortions of the crystal structures of the two groups of minerals. One of the advantages of PCA is the quantitative evaluation of specific crystal structure distortions.
Download or read book Some Applications of Principal Components Analysis to Mineral Crystal Structures written by Catherine Michael Dentan and published by . This book was released on 1976* with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Report on Research at AFCRL written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1974 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Research Papers written by and published by . This book was released on 1975 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1977 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1989 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silicate Structures and dispersion system written by Wilhelm Eitel and published by Elsevier. This book was released on 2012-12-02 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicate Science, Volume VI: Silicate Structures and Dispersoid Systems reviews the advances made in silicate research from 1960 through 1970, with emphasis on X-ray diffraction methods, their theory, and the refinements of special silicate structures, particularly of natural silicate minerals or of synthetic products. The Zolati systematics of silicate crystal structures are used in this treatise, along with the principle of a systematics after the "sharing coefficients." Comprised of three sections, this volume begins with an overview of the progress made in infrared and Raman spectroscopy as well as the Mössbauer nuclear paramagnetic resonance method. Advances in experimental techniques applicable to crystal structure problems and crystal chemistry are highlighted, together with research in isomorphism, isotypism, polymorphism, and the epitaxis phenomena. The next section deals with clay minerals and considers the refined physical-chemical methods used for their identification, chiefly by infrared spectroscopy. Structures, adsorption, and base exchange reactions of clay minerals with inorganic and organic compounds are analyzed. The final section is devoted to silica and silicate dispersoid systems and the many advances made in electron microscopy, especially in the Castaing electron microprobe method. This book will be of interest to mineralogists, chemists, and crystallographers.
Download or read book R D Abstracts written by Technology Reports Centre (Great Britain) and published by . This book was released on 1976 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Chemistry of Silicates written by F. Liebau and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: As natural minerals, silica and silicates constitute by far the largest part of the earth's crust and mantle. They are equally important as raw materials and as mass produced items. For this reason they have been the subject of scientific research by geoscientists as well as by applied scientists in cement, ceramic, glass, and other industries. Moreover, intensive fun damental research on silicates has been carried out for many years because silicates are, due to their enormous variability, ideally suited for the study of general chemical and crystallographic principles. Several excellent books on mineralogy and cement, ceramics, glass, etc. give brief, usually descriptive synopses of the structure of silicates, but do not contain detailed discussions of their structural chemistry. A number of monographs on special groups of silicates, such as the micas and clay min erals, amphiboles, feldspars, and zeolites have been published which con tain more crystal chemical information. However, no modern text has been published which is devoted to the structural chemistry of silicates as a whole. Within the last 2 decades experimental and theoretical methods have been so much improved to the extent that not only have a large number of silicate structures been accurately determined, but also a better under standing has been obtained of the correlation between the chemical composition of a silicate and its structure. Therefore, the time has been reached when a modern review of the structural chemistry of silicates has become necessary.
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1992 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1976 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogs of the Scripps Institution of Oceanography Library written by Scripps Institution of Oceanography. Library and published by . This book was released on 1980 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure and Properties of Silicate Melts written by Bjorn O. Mysen and published by Elsevier Publishing Company. This book was released on 1988 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterization of the relationships between structure and properties of materials is based on the fundamental principle that the structure of the material be determined first, followed by assessments of which structural properties may govern their properties as a function of composition, pressure, temperature and other variables. Whereas this methodology has been successfully applied to further our understanding of crystalline materials, studies of silicate melt structure are often conducted on a somewhat different basis. Rather than from direct structural determination, structure models have been developed from assumed relationships between a specific melt property and its structure. As a result, a multitude of models has evolved - many of which are mutually exclusive. The overall scope of this book is to address properties and processes of magmatic systems from the vantage point of melt structure. To this end available data in chemically increasingly complex systems are reviewed and discussed with the ultimate goal being integration of the simple system data into a model that describes complex systems such as natural magmatic liquids. Thus the book evolves from the simplest possible system, SiO 2 , to complex systems such as natural magmatic liquids. From a petrologic point of view, sufficient data have been obtained so that a general framework of the structure of magmatic liquids is in place. This framework is based on the same principles as those of crystal chemistry, modulated by the absence of long range order in amorphous material, and systematic relationships between structure and properties can be discerned at least at atmospheric pressure.
Download or read book Soviet Physics Doklady written by and published by . This book was released on 1985 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure and Chemistry of Crystalline Solids written by Bodie Douglas and published by Springer Science & Business Media. This book was released on 2007-03-20 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understandable by anyone concerned with crystals or solid state properties dependent on structure Presents a general system using simple notation to reveal similarities and differences among crystal structures More than 300 selected and prepared figures illustrate structures found in thousands of compounds
