The statistical distributions have been specified from a wide review of previous studies for environmental parameters (surface chloride concentration or flux, coefficient of diffusion, corrosion current density) and also for geometrical parameters and mechanical properties of materials. The time dependant ...
Utility of diffusion-weighted MRI in distinguishing benign and malignant hepatic lesions Purpose:To evaluate apparent diffusion coefficient (ADC) values for characterization of a variety of focal liver lesions and specifically for differentiati... FH Miller,N Hammond,AJ Siddiqi,... - 《Journal of ...
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There is high signal material in the left lateral ventricle and asymmetrical dilation of the ventricles with intraventricular septal deviation to right (noncommunicating hydrocephalus). In the middle row, diffusion-weighted imaging (DWI) (C2a–c left planes) and apparent diffusion coefficient (ADC) ...
This paper deals with backward stochastic differential equations with jumps, whose data (the terminal condition and coefficient) are given functions of jump-diffusion process paths. The author introduces a type of nonlinear path-dependent parabolic integrodifferential equations, and then obtains a new ty...
3) diffusion [英][di'fju:ʒən] [美][dɪ'fjuʒən] 扩散过程 1. In this paper we study a stochastic differential equation whose solution is a special diffusion with discontinuous coefficient of drift. 研究了一个随机微分方程 ,它的解是一特殊的扩散过程 ,其漂移系数是不连续的Borel...
The trapping coefficient for hydrogen in Ti has been measured in the energy range from 300 eV to 8 keV and was compared with the trapping coefficient of Zr. In accordance with theory the trapping coefficient for Ti is higher than for Zr in the investigated energy range. The values for both...
regr_r2(yExpr, xExpr) Retourne le coefficient de détermination à partir des valeurs d’un groupe où xExpr et yExpr ne sont PAS NULL. regr_slope(yExpr, xExpr) Retourne la pente de la ligne de régression linéaire des paires de valeurs non-Null yExpr, xExpr dans le groupe. regr_...
We allow for a diffusion coefficient dependent on the control parameter, and the space of control actions is general, so that in particular we need to introduce two adjoint processes. The second adjoint process takes values in a suitable space of operators on L 4. 展开 关键词: Stochastic ...
For NGC 4565, however, the halo is diffusion-dominated up to a height of at least 1 kpc with a diffusion coefficient being only weakly energy dependent. The high-resolution total intensity radio map of NGC 4565 in C-band has a linear resolution of about 200 pc that allows the possibility...