Автор: L.A. Feigin; D.I. Svergun Название: Structure Analysis by Small-Angle X-Ray and Neutron Scattering ISBN: 1475766262 ISBN-13(EAN): 9781475766264 Издательство: Springer Рейтинг: Цена: 13974.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Small-angle scattering of X rays and neutrons is a widely used diffraction method for studying the structure of matter. This method of elastic scattering is used in various branches of science and technology, includ- ing condensed matter physics, molecular biology and biophysics, polymer science, and metallurgy.
Автор: Ladd Название: Structure Determination by X-Ray Crystallography ISBN: 1461439566 ISBN-13(EAN): 9781461439561 Издательство: Springer Рейтинг: Цена: 12577.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: The advances in and applications of x-ray and neutron crystallography form the essence of this new edition of this classic textbook, while maintaining the overall plan of the book that has been well received in the academic community since the first edition in 1977. X-ray crystallography is a universal tool for studying molecular structure, and the complementary nature of neutron diffraction crystallography permits the location of atomic species in crystals which are not easily revealed by X-ray techniques alone, such as hydrogen atoms or other light atoms in the presence of heavier atoms. Thus, a chapter discussing the practice of neutron diffraction techniques, with examples, broadens the scope of the text in a highly desirable way. As with previous editions, the book contains problems to illustrate the work of each chapter, and detailed solutions are provided. Mathematical procedures related to the material of the main body of the book are not discussed in detail, but are quoted where needed with references to standard mathematical texts. To address the computational aspect of crystallography, the suite of computer programs from the fourth edition has been revised and expanded. The programs enable the reader to participate fully in many of the aspects of x-ray crystallography discussed in the book. In particular, the program system XRAY* is interactive, and enables the reader to follow through, at the monitor screen, the computational techniques involved in single-crystal structure determination, albeit in two dimensions, with the data sets provided.Exercises for students can be found int the book, and solutions are available to instructors.
Описание: This Thesis in biological physics has two components, describing the use of X-ray scattering techniques to study the structure of two different stacked lipid membrane systems. The first part focuses on the interaction between a short 11-mer peptide, Tat, which is part of the Tat protein in the HIV-1 virus. Although highly positively charged, the Tat protein has been shown to translocate through hydrocarbon lipid bilayers easily, without requiring the cell’s energy, which is counter to its Born self-energy. In this work Tat’s location in the headgroup region was demonstrated using a combined X-ray scattering and molecular dynamics approach. Bilayer thinning was observed as well as softening of different membrane mimics due to Tat. It was concluded that Tat’s headgroup location, which increases the area/lipid, and its bilayer softening likely reduce the energy barrier for passive translocation. The second part is a rigorous investigation of an enigmatic phase in the phase diagram of the lipid dimyristoylphosphatidylcholine (DMPC). The ripple phase has fascinated many researchers in condensed matter physics and physical chemistry as an example of periodically modulated phases, with many theoretical and simulation papers published. Despite systematic studies over the past three decades, molecular details of the structure were still lacking. By obtaining the highest resolution X-ray data so far, this work revealed the complex nature of the chain packing, as well as confirming that the major side is thicker than the minor side of the saw-tooth ripple structure. The new model shows that the chains in the major arm are tilted with respect to the bilayer normal and that the chains in the minor arm are slightly more disordered than all-trans gel-phase chains, i.e., the chains in the minor arm are more fluid-like. This work provides the highest resolution X-ray structure of the ripple phase to-date.
Описание: This Thesis in biological physics has two components, describing the use of X-ray scattering techniques to study the structure of two different stacked lipid membrane systems.The first part focuses on the interaction between a short 11-mer peptide, Tat, which is part of the Tat protein in the HIV-1 virus.
Автор: Yaroslav Hasek Название: X-Ray and Neutron Structure Analysis in Materials Science ISBN: 1461280729 ISBN-13(EAN): 9781461280729 Издательство: Springer Рейтинг: Цена: 12157.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: During the last few decades, crystallography has become a wide and economically important field of science with many interesting applications in materials research, in different branches of physics, chemistry, geology, pharmacology, biochemistry, electronics, in many technological processes, machinery, heavy industry, etc.
Автор: Li Zhongrui (jerry) Название: Advances in X-ray Absorption Fine Structure Analysis ISBN: 1925823881 ISBN-13(EAN): 9781925823882 Издательство: Неизвестно Рейтинг: Цена: 27587.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book is a high-level introduction, as well as a reference work for experienced users, to ECD, ETD, EDD, NETD, UVPD, SID, and other advanced fragmentation methods.
Автор: R.A. Palmer; M.F.C. Ladd Название: Structure Determination by X-Ray Crystallography ISBN: 1461579414 ISBN-13(EAN): 9781461579410 Издательство: Springer Рейтинг: Цена: 16979.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: X-ray crystallography provides us with the most accurate picture we can get of atomic and molecular structures in crystals. It is still an immense field for young workers, and no doubt will provide yet more striking develop- ments of a major character.
Автор: Hector Jensen; Costas Papadimitriou Название: Sub-structure Coupling for Dynamic Analysis ISBN: 3030128180 ISBN-13(EAN): 9783030128180 Издательство: Springer Рейтинг: Цена: 19564.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: This book combines a model reduction technique with an efficient parametrization scheme for the purpose of solving a class of complex and computationally expensive simulation-based problems involving finite element models. These problems, which have a wide range of important applications in several engineering fields, include reliability analysis, structural dynamic simulation, sensitivity analysis, reliability-based design optimization, Bayesian model validation, uncertainty quantification and propagation, etc. The solution of this type of problems requires a large number of dynamic re-analyses. To cope with this difficulty, a model reduction technique known as substructure coupling for dynamic analysis is considered. While the use of reduced order models alleviates part of the computational effort, their repetitive generation during the simulation processes can be computational expensive due to the substantial computational overhead that arises at the substructure level. In this regard, an efficient finite element model parametrization scheme is considered. When the division of the structural model is guided by such a parametrization scheme, the generation of a small number of reduced order models is sufficient to run the large number of dynamic re-analyses. Thus, a drastic reduction in computational effort is achieved without compromising the accuracy of the results. The capabilities of the developed procedures are demonstrated in a number of simulation-based problems involving uncertainty.
Автор: A. Kitaigorodskii Название: The Theory of Crystal Structure Analysis ISBN: 1475703422 ISBN-13(EAN): 9781475703429 Издательство: Springer Рейтинг: Цена: 6986.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Structure analysis is based on the phenomena of the diffraction of radia- tion by materials. The theory of structure analysis came to mean that of the diffraction of radiation.
Автор: John Greaves Название: Mass Spectrometry for the Novice ISBN: 1420094181 ISBN-13(EAN): 9781420094183 Издательство: Taylor&Francis Рейтинг: Цена: 12095.00 р. Наличие на складе: Нет в наличии.
Описание:
With usage of mass spectrometry continually expanding, an increasing number of scientists, technicians, students, and physicians are coming into contact with this valuable technique. Mass spectrometry has many uses, both qualitative and quantitative, from analyzing simple gases to environmental contaminants, pharmaceuticals, and complex biopolymers. The extraordinary versatility can make mass spectrometers daunting to novices. Consequently, new users would benefit greatly from an understanding of the basic concepts as well as the processes that occur in these instruments. Mass Spectrometry for the Novice provides exactly that, with detailed, straightforward descriptions and clear illustrations of principles of operations and techniques.
The book begins with an overview that includes essential definitions and then provides information on the components of and the strategies used in the most common instruments. The authors discuss the methodologies available, classes of compounds analyzed, and the types of data that can be generated. A group of representative applications from published articles is summarized, demonstrating the diversity of mass spectrometry. The authors also condense the essentials of the topic into one invaluable chapter that provides a set of concise take-home messages on all aspects of mass spectrometry. The final section provides a collection of resources including books, reviews, and useful websites. Using simple language, new color figures, clever cartoons, and assuming no prior knowledge, this book provides a readily understandable entr e to mass spectrometry. A CD-ROM with selected figures and cartoons is included.
Автор: M. Ladd Название: Structure Determination by X-Ray Crystallography ISBN: 1461579325 ISBN-13(EAN): 9781461579328 Издательство: Springer Рейтинг: Цена: 13060.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: It is the principal aim of this book to present an introduction to structure determination by X-ray crystal- lography that is appropriate mainly to both final-year undergraduate studies in crystallography, chemistry, and chemical physics, and introductory post- graduate work in this area of crystallography.
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