الصفحة 4
الصفحة 4
Diffusion-Weighted MR Imaging of the Brain
Diffusion-weighted MR imaging is widely accepted as a means to identify stroke, thus enabling rapid and effective treatment. Over the past four years, these expert authors have presented over 30 exhibits and scientific reports on diffusion-weighted imaging at the RSNA and the American Society of Neuroradiology (ASNR), and more than 10 of these presentations have been recognized by specific awards. Diffusion-Weighted MR Imaging of the Brain’s chapters range from basic principles to interpretation of diffusion-weighted MR imaging and specific disease.
Diffusion in solids : Fundamentals, methods, materials, diffusion-controlled processes
This book first gives an account of the central aspects of diffusion in solids, for which the necessary background is a course in solid state physics. It then provides easy access to important information about diffuson in metals, alloys, semiconductors, ion-conducting materials, glasses and nanomaterials.
Diffusion in Condensed Matter : Methods, Materials, Models
Diffusion as the process of particle transport due to stochastic movement is a phenomenon of crucial relevance for a large variety of processes and materials. This comprehensive, handbook-style survey of diffusion in condensed matter gives detailed insight into diffusion as the process of particle transport due to stochastic movement. Leading experts in the field describe in 23 chapters the different aspects of diffusion, covering microscopic and macroscopic experimental techniques and exemplary results for various classes of solids, liquids and interfaces as well as several theoretical concepts and models. Students and scientists in physics, chemistry, materials science, and biology will benefit from this detailed compilation.
Difficoltà in matematica : Osservare, interpretare, intervenire = Difficulty in mathematics : Observe, interpret, intervene
In a school context, difficulties in mathematics are an important phenomenon both for its diffusion and for the consequences it has at various levels: from the personal distress experienced by many students, to the negative attitude that large sections of the population build towards our discipline, up to the drop in enrollment in scientific degree courses. Faced with these difficulties, which often manifest themselves in behaviors such as giving up trying or responding at random, the didactic action aimed at recovery is generally a local action, which arises from the identification of errors and then intervenes on knowledge deemed necessary to respond correctly. But this type of intervention generally proves to be unsuccessful, and the teacher - together with the pupil - develops a sense of helplessness and frustration.
Designing Ubiquitous Information Environments : Socio-Technical Issues and Challenges; IFIP TC8 WG 8.2 International Working Conference, August 1-3, 2005, Cleveland, Ohio, U.S.A.
The book brings in diverse perspectives on ubiquitous information environments, from computer-supported collaborative work, institutional perspective, diffusion of innovation, management, sociology, individual cognition, and software engineering. It also covers a variety of technologies that make up ubiquitous information environments including RFID, wireless grid, GPS, mobile phones, and wireless local area network. The papers cover many contexts of ubiquitous computing including personal use, library, automobile, healthcare, police, professional knowledge work, remote diagnostics of machines, and marketing, attesting to the wide range of potential of ubiquitous information environments.
Defects in High-k Gate Dielectric Stacks : Nano-Electronic Semiconductor Devices
One of the key obstacles to high-k integration into Si nano-technology are the electronic defects in high-k materials. It has been established that defects do exist in high-k dielectrics and they play an important role in device operation. However, very little is known about the nature of the defects or about possible techniques to eliminate, or at least minimize them. Given the absence of a feasible alternative in the near future, well-focused scientific research and aggressive development programs on high-k gate dielectrics and related devices must continue for semiconductor electronics to remain a competitive income producing force in the global market.
Cosmic Ray Interactions, Propagation, and Acceleration in Space Plasmas
"The book consists of four Chapters. Chapter 1 shortly describes main properties of space plasmas and primary CR, different types of CR interactions with space plasmas components Chapter 2 considers the problem of CR propagation in space plasmas described by the kinetic equation and different types of diffusion approximations ,Chapter 3 is devoted to CR non-linear effects in space plasmas caused by CR pressure and CR kinetic stream instabilities with the generation of Alfvèn turbulence In Chapter 4 different processes of CR acceleration in space plasmas are considered: the development of the Fermi statistical mechanism, acceleration in the turbulent plasma, Alfven mechanism of magnetic pumping, induction mechanisms, acceleration during magnetic collapse and compression, cumulative acceleration mechanism near the zero lines of a magnetic field, acceleration in shear flows, shock-wave diffusion (regular) acceleration. The book ends with a list providing more than 1,300 full references, a discussion on future developments and unsolved problems, as well as Object and Author indexes. "
Controlled Markov Processes and Viscosity Solutions
This book is intended as an introduction to optimal stochastic control for continuous time Markov processes and to the theory of viscosity solutions. Stochastic control problems are treated using the dynamic programming approach. It approachs stochastic control problems by the method of dynamic programming. The fundamental equation of dynamic programming is a nonlinear evolution equation for the value function. For controlled Markov diffusion processes, this becomes a nonlinear partial differential equation of second order, called a Hamilton-Jacobi-Bellman (HJB) equation. Typically, the value function is not smooth enough to satisfy the HJB equation in a classical sense. Viscosity solutions provide framework in which to study HJB equations, and to prove continuous dependence of solutions on problem data. The theory is illustrated by applications from engineering, management science, and financial economics.
Continuous time processes for finance : Switching, self-exciting, fractional and other recent dynamics
This book explores recent topics in quantitative finance with an emphasis on applications and calibration to time-series. This last aspect is often neglected in the existing mathematical finance literature while it is crucial for risk management. The first part of this book focuses on switching regime processes that allow to model economic cycles in financial markets. After a presentation of their mathematical features and applications to stocks and interest rates, the estimation with the Hamilton filter and Markov Chain Monte-Carlo algorithm (MCMC) is detailed. A second part focuses on self-excited processes for modeling the clustering of shocks in financial markets.
Computational Methods in Transport ; Granlibakken 2004
Based on a series of lectures given in the Granlibakken workshop was devoted to providing a forum, where computational transport researchers could communicate their methods with their results. This book presents computational transport in mathematics, astrophysics, high energy density physics, atmospheric physics, oceanography, and plant canopies.
Cloud Optics
Clouds affect the climate of the Earth, and they are an important factor in the weather. Therefore, their radiative properties must be understood in great detail. This book summarizes current knowledge on cloud optical properties, for example their ability to absorb, transmit, and reflect light, which depends on the clouds’ geometrical and microphysical characteristics such as sizes of droplets and crystals, their shapes, and structures. In addition, problems related to the image transfer through clouds and cloud remote sensing are addressed in this book in great detail. This book can be an important source of information on theoretical cloud optics for cloud physicists, meteorologists and optical engineers.
Materials Issues for Generation IV Systems ; Status, Open Questions and Challenges
Global warming, shortage of low-cost oil resources and the increasing demand for energy are currently controlling the world's economic expansion while often opposing desires for sustainable and peaceful development. In this context, atomic energy satisfactorily fulfills the criteria of low carbon gas production and high overall yield. However, in the absence of industrial fast-breeders the use of nuclear fuel is not optimal, and the production of high activity waste materials is at a maximum. These are the principal reasons for the development of a new, fourth generation of nuclear reactors, minimizing the undesirable side-effects of current nuclear energy production technology while increasing yields by increasing operation temperatures and opening the way for the industrial production of hydrogen through the decomposition of water.
Learning in Modern International Society : On the Cognitive Problem Solving Abilities of Political Actors
Claudia Hofmann engages in a theoretical modelling of international learning processes and the substantiation of this model through three cases from international politics. She answers two questions: How may international actors learn as a collective? And how may the lessons learned influence actor behaviour and problem solving processes? As a foundation for answering these questions she examines the nature of actor behaviour within a social international system and integrates the diffusion of norms and values among macro-level actors.
Lagrangian Probability Distributions
Lagrangian expansions can be used to obtain numerous useful probability models, which have been applied to real life situations including, but not limited to: branching processes, queuing processes, stochastic processes, environmental toxicology, diffusion of information, ecology, strikes in industries, sales of new products, and production targets for optimum profits. This book presents a comprehensive, systematic treatment of the class of Lagrangian probability distributions, along with some of its families, their properties, and important applications.
KRAS : Methods and protocols
Details protocols ranging from high yield production metabolically labeled KRAS for NMR studies to approaches that quantify engagement of novel molecules that bind KRAS in live cells. Chapters focus on protein production and characterization, biochemical assays, cell-based assays, KRAS-membrane interactions, targeting KRAS, and cell models.
Complex Inorganic Solids : Structural, Stability, and Magnetic Properties of Alloys
One the key aspects of this volume is to cut across the traditional taxonomy of disciplines in the study of alloys. Hence there has been a deliberate attempt to integrate the different approaches taken towards alloys as a class of materials in different fields, ranging from geology to metallurgical engineering. The emphasis of this book is to highlight commonalities between different fields with respect to how alloys are studied. The topics in this book fall into several themes, which suggest a number of different classification schemes. We have chosen a scheme that classifies the papers in the volume into the categories Microstructural Considerations, Ordering, Kinetics and Diffusion, Magnetic Considerations and Elastic Considerations. The book has juxtaposed apparently disparate approaches to similar physical processes, in the hope of revealing a more dynamic character of the processes under consideration. This monograph will invigorate new kinds of discussion and reveal challenges and new avenues to the description and prediction of properties of materials in the solid state and the conditions that produce them
Case studies in the traditional food sector : A volume in the consumer science and strategic marketing series
The book explores how consumer and sensory science has been implemented in the food industry for achieving the following strategic aims: Rejuvenating product image, Shaping new market places, Achieving market differentiation and geographical diffusion, Achieving customer loyalty, Promoting traditional features of the product and defining product positioning in competitive environment. This book aims to answer the following questions, amongst others: How research in the field of consumer science became relevant for marketing strategies?, Which tangible economic and financial outcomes have been obtained by the joint work of sensory scientists, Researchers in marketing field and food business professionals?, And which communication methods and practices have been relevant to make the most of R&D in the food industry?
Cartoony story app = تطبيق قصة كارتونية
The translation of textual narratives into immersive visual representations poses a significant challenge in the field of artificial intelligence. Traditional cartoon generation techniques face formidable technical challenges and require substantial resources. Research efforts towards direct video synthesis from text have encountered obstacles in developing efficient techniques. In parallel, researchers propose an alternative approach involving the generation of dynamic sequences of images portraying children's story narratives. This approach includes applying various visual effects to highlight motion, interaction, and excitement in storytelling. By dynamically generating a sequence of images reflecting the narrative's progression and applying diverse visual effects, this alternative method offers a flexible and practical solution to cartoon generation challenges, providing an efficient and effective experience akin to video while retaining the magical appeal of visual storytelling. ...
Business agility and information technology diffusion ; IFIP TC8 WG 8.6 International working Conference, May 8-11, 2005, Atlanta, Georgia, USA
Addresses issues related to business agility and the diffusion of Information Technology (IT). Success, even survival, in today's business environment has been made complex and difficult by technologically-based competitive pressure. One promising strategy is to be agile and ready to adapt quickly to changes in the environment or market. Such strategy takes shape as an agile software development, agile manufacturing, agile modeling and agile iterations. In contrast, successful IT diffusion is known to be a process that takes time and careful effort. Many IT projects that succeeded in developing a product have subsequently failed in changing the behavior of the target group when diffusion just didn't happen. Therefore this volume responds to the question: What is the relationship between agility and IT diffusion? The book's scope will cover information systems and technology issues, as well as organizational and managerial issues, related to agility and IT diffusion. The planned perspectives include topics such as diffusion of agile methods, enabling business agility with IT, creating agile environments that facilitate diffusion of IT, theories and frameworks for understanding diffusion and agility issues, best practices relating to business agility and IT diffusion, software process improvement and agility, diffusion studies of specific agile technologies, and impacts of diffusion of IT agile methods.
Applied Stochastic Processes
Applied Stochastic Processes uses a distinctly applied framework to present the most important topics in the field of stochastic processes.
