Magnetization dynamics

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  • Putting the quantum into magnetism might, at first sight, seem like stating the obvious; the exchange interactions leading to collective magnetic behavior are, after all, a pure quantum effect. Yet, for many phenomena in magnetism this underlying quantum nature may be safely ignored at least on the qualitative level. The investigation of magnetic systems where quantum effects play a dominant role and have to be accounted for in detail has, over the last decades, evolved to be a field of very active research....

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  • We prove the existence of dynamical delocalization for random Landau Hamiltonians near each Landau level. Since typically there is dynamical localization at the edges of each disordered-broadened Landau band, this implies the existence of at least one dynamical mobility edge at each Landau band, namely a boundary point between the localization and delocalization regimes, which we prove to converge to the corresponding Landau level as either the magnetic field goes to infinity or the disorder goes to zero. ...

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  • This cross-disciplinary book documents the key research challenges in the mathematical sciences and physics that could enable the economical development of novel biomedical imaging devices. It is hoped that the infusion of new insights from mathematical scientists and physicists will accelerate progress in imaging.

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  • Abstract The year 2008 marked the one hundredth anniversary of the observational discovery by George Ellery Hale of magnetic field in sunspots (Hale in Astrophys. J. 28:315–343, 1908). This observation, the first to suggest a direct link between the best-known variable features on the Sun and magnetism, started a line of research that has widened considerably over the last 100 years and is continuing today. Knowledge about all aspects of the Sun has increased in a remarkable way over the past few decades....

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  • Modeling and simulation of dynamic systems is Pham Huy Hoang Electromotive force (emf) voltage (electromotance): is that which tends to cause current (actual electrons and ions) to flow, is the external work expended per unit of charge to produce an electric potential difference across two open-circuited terminals.

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  • This chapter presents the following content: Forces and torques in magnetic field systems, energy balance, energy in singly – excited magnetic field systems, determination of magnetic force and torque from energy and coenergy, multiply – excited magnetic field systems, forces and torques in systems with permanent magnets, dynamic equations, analytical techniques.

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  • Cd1-xMnxS nanoparticles (NPs) with size quantum confinement belong to the diluted magnetic semiconductor (DMS) quantum dot (QD) class of materials that has been widely studied in the last few years. The study of quasi-zero-dimensional Diluted Magnetic Semiconductors (DMS), such as Cd1-xMnxS Quantum Dots (QDs), is strongly motivated due to the localization of magnetic ions in the same places as the free-like electron and hole carriers occurring in these nanomaterials [1,2].

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  • (BQ) Part 2 book "Physical chemistry" has contents: Rotational and vibrational spectroscopy, electronic spectroscopy of molecules, magnetic resonance spectroscopy, statistical mechanics, experimental kinetics and gas reactions, chemical dynamics and photochemistry,...and other contents.

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  • The proposed book contains a lot of recent research devoted to numerical simulations of physical and engineering systems. It can be treated as a bridge linking various numerical approaches of two closely inter-related branches of science, i.e. physics and engineering. Since the numerical simulations play a key role in both theoretical and application-oriented research, professional reference books are highly required by pure research scientists, applied mathematicians, engineers as well post- graduate students....

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  • This book provides an overview of the synthesis and characterization of nanocrystals. Nanocrystals, owing to their unique behavior with reduction in size, have been a significant part of the novel materials developed for applications such as biosensors, optics, catalysts to semiconductor devices. Over the years, various synthesis methods are discovered to develop nanostructures with tunable properties such as optical, electronic magnetic and mechanical properties. The chapters in this book cover a broad range of properties of nanocrystals synthesized for various applications....

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  • (BQ) Part 2 book "Atkins’ physical chemistry" has contents: Molecular spectroscopy 3 - Magnetic resonance, molecular interactions, molecules in motion, the rates of chemical reactions, the kinetics of complex reactions, molecular reaction dynamics, processes at solid surfaces...and other contents.

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Dynamic magnetic resonance of the wrist in psoriatic arthritis reveals imaging patterns similar to those of rheumatoid arthritis...

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Dynamic magnetic resonance imaging in assessing lung function in adolescent idiopathic scoliosis: a pilot study of comparison before and after posterior spinal fusion

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Spin dynamics of an ultra-small nanoscale molecular magnet

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  • Based on the results from this year’s survey, it is pretty clear that Building Information Modeling (BIM) is here to stay. Firms reported using BIM technology in 38 percent of their projects in 2012, a slight increase compared to the 35 percent of firms that used BIM in 2011. BIM technology typically uses three-dimensional, real-time, dynamic building modeling software to increase productivity in building design and construction. Construction firms clearly expect demand for BIM to continue growing, with 43 percent reporting they expect use of BIM to increase in 2013.

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  • Nuclear magnetic resonance (NMR) spectroscopy has made quantum leaps in the last decade, becoming a staple tool in such divergent fields as chemistry, physics, materials science, biology, and medicine. That is why it is essential that scientists working in these areas be fully conversant with current NMR theory and practice.

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  • (BQ) Part 2 book "A complete introduction to modern NMR spectroscopy" has contents: The study of dynamic processes by NMR; electron paramagnetic resonance spectroscopy and chemically induced dynamic nuclear polarization; double resonance techniques and complex pulse sequences, two-dimensional nuclear magnetic resonance, NMR studies of biological important molecules,...and other contents.

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  • (BQ) Part 1 book "Advances in hemodynamic research" presents the following contents: Historical and current role of hemodynamic research, hemodynamic assessment and flow visualization in echocardiography, flow visualization in magnetic resonance imaging, computational modeling of blood flow, emodynamics and ventricular dynamics evaluated with catheter.

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  • This book covers the recent development and progress of the wind energy conversion system. The chapters are contributed by prominent researchers in the field of wind energy and cover grid integration issues, modern control theories applied in wind energy conversion system, and dynamic and transient stability studies.

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  • The permanent-magnet synchronous machine (PMSM) drive has emerged as a top competitor for a full range of motion control applications [1–3]. For example, the PMSM is widely used in machine tools, robotics, actuators, and is being considered in high-power applications such as vehicular propulsion and industrial drives. It is also becoming viable for commercial/residential applications. The PMSM is known for having high efficiency, low torque ripple, superior dynamic performance, and high power density.

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