Earth Sciences

Modern Perspectives in Inorganic Crystal Chemistry (NATO Science Series

This book contains the contributions of 13 well known specialists in the field of solid state chemistry who had invited as lectures at a 1992 NATO Advanced Study Institute in Erice, Sicily. The chapters of a more general character concern the use of the space group-subgroup relatioship for the recognition of structure families, the crystal chemical formulae (which is a way of denoting simple crystal chemical information in a condensed form), the concepts of atom coordination, atom volume and charge transfer and the physicist's view of the bond strength in the solid which is measured by the crystal orbital overleap population. It is demonstrated for the case of ionic compounds that the bond valence method is superior to the old sum-of-radii method for the prediction of interatomic distances. Simple valence electron rules can be applied to compounds with tetrahedral anion complexes. These rules allow one not only to make predictions on expected structural features of unknown compounds, but also to point out inconsistencies between the reported structure and composition of known comounds. Detailed accounts are presented on the crystal chemistry of the superconducting copper oxids, the sulfosalts, the metal cluster compounds, the silicates and the transition metal borides and related compounds. In the case of intermetallic compounds the intergrowth concept is found to be very useful for an `understanding' of complicated atom arrangements. At the end of each chapter there can be found problems and their solutions. This makes it possible for (advanced) undergraduates in chemistry, physics, metallurgy, materials science and mineralogy to be able to profit from a study of this book.

Price : $247.00

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Optics and Nonlinear Optics of Liquid Crystals (Series in Nonlinear Opti

This is a monograph/text devoted to a detailed treatment of the optical, electro-optical and nonlinear optical properties of all the mesophases of liquid crystals and related processes, phenomena and applications principles. Quantitative data on material and optical parameters spanning the ultraviolet, visible, infrared as well as the microwave regimes are presented along with detailed theoretical treatments of basic liquid crystal physics, material properties and nonlinear optics. Starting with a discussion on the basic building blocks of liquid crystalline molecules, the authors proceed to present in a pedagogical manner current theories, experiments, and applications of these unique and important optical properties of liquid crystals. Numerous tables of hard-to-find liquid crystalline parameters, a self-contained chapter on general nonlinear optics, and comprehensive literature review are also included.

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Structure Reports, 60-Year Structure Index. Supplement for 1974-1975: A.

Price : $8.50

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Structure Reports for 1971, Volume 37B: Organic Section (Structure Repor

Price : $115.00

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Biophysical approaches to translational control of gene expression (Biop

This book provides a premier resource on understanding the ribosome's essential nature and how it interacts with other proteins and nucleic acids to control protein synthesis. As one of the central foundations in our understanding of the biology at the molecular level, this topic appeals to a wide audience, from bench researcher to clinician.  With the advent of atomic scale structures, methods to visualize and separate individual molecules, and the computational power to model the complex interactions of over a million atoms at once, our understanding of how gene expression is controlled at the level of protein translation is now deeply ensconced in the biophysical realm.

Price : $177.79

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Crystallisation - A Biological Perspective: Faraday Discussions No 159

The last ten years have seen a revolution in our understanding of the mechanisms of biological crystal growth. While it had long been assumed that crystallisation would occur by the same classical mechanisms which form the basis for most descriptions of crystallisation processes, it is now becoming apparent that this is not the case. There are a number of key observations which have changed our view of crystallisation mechanisms. While it had long been assumed that crystalline biominerals typically form by ion-by-ion growth, it is now recognised that they often precipitate via amorphous precursor phases. This is well established for calcium carbonate and there is growing evidence that biogenic crystalline calcium phosphate phases may form via an analogous route. Recent re-examination of the structure of many calcium carbonate biominerals is also suggesting that "non-classical" crystallisation pathways, where crystals grow from the assembly of precursor particles, may also be widespread. Significantly, these mechanisms are not unique to the biological world. Possibly partly inspired by the identification of these biogenic mineralisation strategies, there is currently great interest from the general crystal growth community in these new and controversial ideas. A number of studies on crystal nucleation have recently re-examined classical nucleation theory, and the observation of pre-nucleation clusters is a recurrent theme of great interest. This controversial result apparently contradicts classical nucleation theory which leads the subject of crystal nucleation and growth via assembly to demand attention. The Scientific Committee warmly invites you to take part in this thought-provoking Discussion and looks forward to welcoming you to Leeds.

Price : $234.90

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Annual Accounting Review: Volume 4, 1982 (v. 4)

Price : $305.00

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Dislocations in Solids : Volume 9

It is clear that disclination theory has not, or not yet, shown the power of physical explanation that has come from dislocation theory. However, there are many indications that its importance will grow. There is increasing interest in the structure of highly deformed metals, and their deformation obviously involves large mutual rotations of neighbouring elements. There is a strong, but not remarkably successful, activity in the theory of the formation of dislocation patterns during deformation, and these patterns are essentially disclinations. This volume contains four chapters: Chapter 44 illustrates the great advances which have occurred in the electron microscopy of dislocations, reporting on both the current theoretical position and the most accurate experimental observations. Chapter 45 gives a thorough analysis of the internal friction arising from the production and motion of kinks in dislocations lying in Peierls valleys. Chapter 46 treats another problem of dislocation dynamics, concluding that the processes are essentially different in f.c.c. and b.c.c. metals. Chapter 47 discusses a topic which has been studied more vigorously in the Soviet Union than in the West, providing a summary of experimental observations on various kinds of rotational deformation together with a comprehensive bibliography. A detailed account of the elastic theory of disclinations is also presented here in a single chapter.

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Implications of Molecular and Materials Structure from New Technologies

Recent years have seen a dramatic increase in the use of crystal structure information and computational techniques in the design and development of a very wide range of novel materials. These activities now encompass a broad chemical spectrum, reflected in the contributions published here, which cover: modern crystallographic techniques, databases and knowledge bases of experimental results, computational techniques and their interplay with experimental information, hydrogen bonding and other intermolecular interactions, supramolecular assembly and crystal structure prediction, and practical examples of materials design. Each author is a recognised expert and the volume contains state-of-the-art results set in the context of essential background material and augmented by extensive bibliographies. The volume provides a coherent introduction to a rapidly developing field and will be of value to both specialists and non-specialists at the doctoral and post-doctoral levels.

Price : $199.00

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Diamond: Growth, Properties and Novel Applications

This book fills several large gaps in the existing diamond literature in the areas of HPHT synthesis and applications for high quality single crystals, emerging processing technologies for both HPHT and CVD diamond, homoepitaxial growth of films and large single crystals by CVD, and the properties and applications of films and bulk crystals of isotopically controlled composition. The subject matter, organization and level of treatment is primarily intended for researchers and graduate students in experimental condensed matter physics, materials science and engineering, and the geological sciences. Theoretical solid state and materials physicists should also find it a useful resource containing a great deal of previously unpublished data on diamond growth and properties. By treating the synthesis, processing and characterization of both HPHT and CVD diamond on an equal footing, and considering the distinct yet complementary properties and applications of each, it is our hope that this text will provide, in addition to a practical research tool, a more thorough and integrated overview of the state of diamond science and technology than is currently available in the literature.

Price : $147.00

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