Angebote zu "Magnetic" (15 Treffer)

Kategorien

Shops

The Physics of Clinical MR Taught Through Images
43,77 € *
ggf. zzgl. Versand

The Physics of Clinical MR Taught Through Images Fourth Edition by Val Runge, Wolfgang Nitz, and Johannes Heverhagen presents a unique and highly practical approach to understanding the physics of magnetic resonance imaging. Each physics topic is described in user-friendly language and accompanied by high-quality graphics and/or images. The visually rich format provides a readily accessible tool for learning, leveraging, and mastering the powerful diagnostic capabilities of MRI. Key Features More than 700 images, anatomical drawings, clinical tables, charts, and diagrams, including magnetization curves and pulse sequencing, facilitate acquisition of highly technical content. Eight systematically organized sections cover core topics: hardware and radiologic safety; basic image physics; basic and advanced image acquisition; flow effects; techniques specific to the brain, heart, liver, breast, and cartilage; management and reduction of artifacts; and improvements in MRI diagnostics and technologies. Cutting-edge topics including contrast-enhanced MR angiography, spectroscopy, perfusion, and advanced parallel imaging/data sparsity techniques. Discussion of groundbreaking hardware and software innovations, such as MR-PET, 7 T, interventional MR, 4D flow, CAIPIRINHA, radial acquisition, simultaneous multislice, and compressed sensing. A handy appendix provides a quick reference of acronyms, which often differ from company to company. The breadth of coverage, rich visuals, and succinct text make this manual the perfect reference for radiology residents, practicing radiologists, researchers in MR, and technologists.

Anbieter: buecher
Stand: 03.07.2020
Zum Angebot
The Physics of Clinical MR Taught Through Images
43,77 € *
ggf. zzgl. Versand

The Physics of Clinical MR Taught Through Images Fourth Edition by Val Runge, Wolfgang Nitz, and Johannes Heverhagen presents a unique and highly practical approach to understanding the physics of magnetic resonance imaging. Each physics topic is described in user-friendly language and accompanied by high-quality graphics and/or images. The visually rich format provides a readily accessible tool for learning, leveraging, and mastering the powerful diagnostic capabilities of MRI. Key Features More than 700 images, anatomical drawings, clinical tables, charts, and diagrams, including magnetization curves and pulse sequencing, facilitate acquisition of highly technical content. Eight systematically organized sections cover core topics: hardware and radiologic safety; basic image physics; basic and advanced image acquisition; flow effects; techniques specific to the brain, heart, liver, breast, and cartilage; management and reduction of artifacts; and improvements in MRI diagnostics and technologies. Cutting-edge topics including contrast-enhanced MR angiography, spectroscopy, perfusion, and advanced parallel imaging/data sparsity techniques. Discussion of groundbreaking hardware and software innovations, such as MR-PET, 7 T, interventional MR, 4D flow, CAIPIRINHA, radial acquisition, simultaneous multislice, and compressed sensing. A handy appendix provides a quick reference of acronyms, which often differ from company to company. The breadth of coverage, rich visuals, and succinct text make this manual the perfect reference for radiology residents, practicing radiologists, researchers in MR, and technologists.

Anbieter: buecher
Stand: 03.07.2020
Zum Angebot
Numerical Methods for Two-Fluid Plasma Equations
79,00 € *
ggf. zzgl. Versand

The 5-moment two-fluid plasma model uses Euler equations to describe the ion and electron fluids, and Maxwell's equations to describe the electric and magnetic fields. Two-fluid physics becomes significant when the characteristic spatial scales are on the order of the ion skin depth and characteristic time scales are on the order of the inverse ion cyclotron frequency. The two-fluid plasma model has disparate characteristic speeds ranging from the ion and electron speeds of sound to the speed of light. Explicit and implicit time-stepping schemes are explored for the two-fluid plasma model to study the accuracy and computational effectiveness with which they could capture two-fluid physics. The explicit schemes explored include the high resolution wave propagation method (a finite volume method) and the Runge-Kutta discontinuous Galerkin method (a finite element method). The two-fluid plasma model is compared to the more commonly used Hall-MHD model for accuracy and computational effort using an explicit time-stepping scheme. Simulations of two-fluid instabilities in the Z-pinch and the field-reversed configuration are presented in 3-dimensions.

Anbieter: Dodax
Stand: 03.07.2020
Zum Angebot
Analysis of Fluid Flow between Parallel Porous ...
79,90 € *
ggf. zzgl. Versand

The Objective of this work is to investigate the unsteady stokes flow of viscous fluid, the behavior of the steady and unsteady flows in the presence of Magnetic forces and the flow of second grade fluid between parallel porous plates using analytical and numerical techniques. The flow is assumed to be laminar, incompressible and viscous. The Navier-Stokes equations are assumed for the viscous flow, the second grade fluid flow problems for both steady and unsteady cases. Exact solutions have been found out for some flow problems. Approximate analytical solution has been obtained using perturbation technique and the numerical solution is being discussed. The Runge Kutta Gill's method is applied for finding out the numerical solutions.

Anbieter: Dodax
Stand: 03.07.2020
Zum Angebot
MHD Radiative Boundary Layer Nanofluid Flow pas...
59,00 € *
ggf. zzgl. Versand

The study of Radiative heat transfer in a nanofluid with the influence of magnetic field over a stretching surface has been investigated numerically. This model is used for the laminar boundary layer flow of a nanofluid. This study is considered for two cases as steady and unsteady. Similar and non similar solutions are presented here. At first for the steady case the system of governing equation are transformed into nonlinear ordinary coupled differential equations. These equations are solved numerically using the Nactsheim-Swigert shooting iteration technique together with Runge-Kutta six order iteration scheme with the help of a computer programming language Compaq Visual Fortran 6.6a. Numerical results are obtained for the velocity, temperature and concentration distributions, as well as Skin-friction coefficient, Nusselt number and Sherwood number at the sheet. The obtained results are presented graphically and also in tabular form. After that, for the unsteady case, the governing equations have been non-dimensionalised by usual transformation. Numerical solutions for the velocity, temperature and concentration distributions are obtained for associated parameters.

Anbieter: Dodax
Stand: 03.07.2020
Zum Angebot
Similarity solutions of boundary layer equation...
61,90 € *
ggf. zzgl. Versand

In this work, similarity and numerical solutions for some problems of unsteady heat transfer over different surfaces in the boundary layer of fluids through a porous medium are discussed. In these problems, we studied the influences of magnetic field, permeability of porous medium, heat generation / absorption, thermal conductivity, variable temperature. The governing equations are first cast into a dimensionless form by a nonsimilar transformation and the resulting equations are solved numerically by using the Runge-Kutta numerical integration, procedure in conjunction with shooting technique. The obtained results are shown in graphics and tabulated representation followed by a quantitative discussion. The main aim of this book which consists of four chapters, is to study similarity solutions of boundary layer of some fluid. In the following, a brief discussion of the chapters is given.

Anbieter: Dodax
Stand: 03.07.2020
Zum Angebot
Simulation of Manufacturing Sequences of Functi...
49,00 € *
ggf. zzgl. Versand

The current paper establishes an axisymmetric model for an inductive heating process. Therein, the fully coupled MAXWELL equations, assuming a temperature dependent permeability, are combined with the non-linear heat conduction equation to yield a monolithic solution strategy. The latter is based on a consistent linearization together with a higher order finite element discretization using GALERKIN'S method in space. For the temporal discretization, the generalized Newmark-α methods, higher order RUNGE-KUTTA methods, and discontinuous and continuous GALERKIN methods are used. Furthermore, the residual error is introduced to open an alternative way to obtain a numerically efficient estimation of the time integration accuracy. Simulation results of the electric, magnetic and thermal fields are provided, together with parameter studies concerning spatial discretization, frequency dependence and penetration depth of the heating zone. Another topic analyzed is the residual error and its estimation quality regarding polynomial degree and time step size. A further aspect of this work is the investigation of the thermal fluid-structure interaction with respect to functionally graded materials. Different coupling strategies for the acceleration of the fixed-point iteration in each time step is in the foreground. Relaxation methods as well as extrapolation methods make it possible to significantly reduce the number of fixed point iterations. At the same time, an adaptive strategy with higher order RUNGE-KUTTA methods can provide a further advantage in combination with acceleration methods.

Anbieter: Dodax
Stand: 03.07.2020
Zum Angebot
The Physics of Clinical MR Taught Through Images
59,99 € *
ggf. zzgl. Versand

The Physics of Clinical MR Taught Through Images Fourth Edition by Val Runge, Wolfgang Nitz, and Johannes Heverhagen presents a unique and highly practical approach to understanding the physics of magnetic resonance imaging. Each physics topic is described in user-friendly language and accompanied by high-quality graphics and/or images. The visually rich format provides a readily accessible tool for learning, leveraging, and mastering the powerful diagnostic capabilities of MRI.Key FeaturesMore than 700 images, anatomical drawings, clinical tables, charts, and diagrams, including magnetization curves and pulse sequencing, facilitate acquisition of highly technical content.Eight systematically organized sections cover core topics: hardware and radiologic safety, basic image physics, basic and advanced image acquisition, flow effects, techniques specific to the brain, heart, liver, breast, and cartilage, management and reduction of artifacts, and improvements in MRI diagnostics and technologies.Cutting-edge topics including contrast-enhanced MR angiography, spectroscopy, perfusion, and advanced parallel imaging/data sparsity techniques.Discussion of groundbreaking hardware and software innovations, such as MR-PET, 7 T, interventional MR, 4D flow, CAIPIRINHA, radial acquisition, simultaneous multislice, and compressed sensing.A handy appendix provides a quick reference of acronyms, which often differ from company to company.The breadth of coverage, rich visuals, and succinct text make this manual the perfect reference for radiology residents, practicing radiologists, researchers in MR, and technologists.

Anbieter: Dodax
Stand: 03.07.2020
Zum Angebot
Analysis of Fluid Flow between Parallel Porous ...
79,90 € *
ggf. zzgl. Versand

The Objective of this Book is to Investigate the Unsteady Stokes Flow of Viscous Fluid, the behaviour of the Steady and Unsteady flows in the presence of Magnetic forces and the flow of second grade fluid between parallel porous plates using analytical and numerical techniques. The flow is assumed to be laminar, incompressible and viscous. The Navier-Stokes equations are assumed for the viscous flow, the second grade fluid flow problems and the magnetic effects are also considered in some of the problems for the steady and unsteady cases. Exact solutions have been found out for some flow problems. Approximate analytical solution has been obtained using Perturbation technique and the numerical solution is being discussed. Runge Kutta Gill's method is applied for finding out the numerical solutions.

Anbieter: Dodax
Stand: 03.07.2020
Zum Angebot