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Overview of diffraction methods applied to the analysis of the microstructure of materials. Since crystallite size and the presence of lattice defects have a decisive influence on the properties of many engineering materials, information about this microstructure is of vital importance in developing and assessing materials for practical applications. The most powerful and usually non-destructive evaluation techniques available are X-ray and neutron diffraction. The book details, among other things, diffraction-line broadening methods for determining crystallite size and atomic-scale strain due, e.g. to dislocations, and methods for the analysis of residual (macroscale) stress. The book assumes only a basic knowledge of solid-state physics and supplies readers sufficient information to apply the methods themselves.
Sleep and wakefulness undergo important changes with age. Awakening, a crucial event in the sleep-wake rhythm, is a transition implying complex physiological mechanisms. Its involvement in sleep disturbances is also well known. This collective volume is the first attempt to systematically approach awakening across development.A methodological section considers criteria to define awakening in a developmental perspective. Theoretical considerations on development of wakefulness and on its relation to consciousness are included and provide a vigorous impulse to go beyond present criteria and classifications. Age changes are the core of studies on development: a section of the book examines old ...
Itt a tanulság, Bárki megérti: Bármilyen kérdés, Figaro érti.
First multi-year cumulation covers six years: 1965-70.
One of the vastly exciting areas in modern science involves the study of the brain. Recent research focuses not only on how the brain works but how it is related to what we normally call the mind, and throws new light on human behavior. Progress has been made in researching all that relates to interior man, why he thinks and feels as he does, what values he chooses to adopt, and what practices to scorn. All of these attributes make us human and help to explain art, philosophy, and religions. Motion, sight, and memory, as well as emotions and the sentiments common to humans, are all given new meaning by what we have learned about the brain. In an introductory essay, Vernon B. Mountcastle trac...
A Hun Attila rnykban, nem egy letrajznak sznt olvasmny. A szerz, egyszeren csokorba foglalta a szemlyes emlkeire s tapasztalataira alapozott rvid trtneteket, amelyeket a hossz vek sorn rsba foglalt. Gyermekkori bartainak, biztat s lelkest inspircijbl, fakadt a sugallat. A sugallatbl ihlet lett, majd megszletett az elhatrozs, s ezutn a knyv. Ezek valban, Rvid Trtnetek egy Vndorl Magyar letbl, aki, mint gyermek, elindult az ltala elkpzelt let tjn. Ez az t, nagyon nehznek, s majdnem jrhatatlannak bizonylt, de mgis elvezetett a boldogsghoz. Ha ezeket a trtneteket az olvas tanulsgosaknak tallja, vagy csak szrakoztatnak, mialatt dert s mosolyt varzsol az arcra, a szerz munkssga nem volt hiba!
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Presently, there is an intense race throughout the world to develop good enough thermoelectric materials which can be used in wide scale applications. This book focuses comprehensively on very recent up-to-date breakthroughs in thermoelectrics utilizing nanomaterials and methods based in nanoscience. Importantly, it provides the readers with methodology and concepts utilizing atomic scale and nanoscale materials design (such as superlattice structuring, atomic network structuring and properties control, electron correlation design, low dimensionality, nanostructuring, etc.). Furthermore, also indicates the applications of thermoelectrics expected for the large emerging energy market. This book has a wide appeal and application value for anyone being interested in state-of-the-art thermoelectrics and/or actual viable applications in nanotechnology.
The processing and mechanical behaviour of bulk nanostructured materials are one of the most interesting new fields of research on advanced materials systems. Many nanocrystalline materials possess very high strength with still good ductility, and exhibit high values of fatigue resistance and fracture toughness. There has been continuing interest in these nanomaterials for use in structural and biomedical applications, and this has led to a large number of research programs worldwide. This book focuses on the processing techniques, microstructures, mechanical and physical properties, and applications of bulk nanostructured materials, as well as related fundamental issues. Only since recently can such bulk nanostructured materials be produced in large bulk dimensions, which opens the door to their commercial applications.