Results 41 to 50 of about 359,903 (228)

Efficient Frequency-Dependent Newmark-Beta-FDTD Method for Periodic Grating Calculation

IEEE Photonics Journal, 2016
In this paper, the Newmark-Beta algorithm is introduced into the finite-difference time-domain (FDTD) method in dispersion media, resulting in an unconditionally stable method for periodic metallic grating analysis.
Sheng-Bing Shi, Wei Shao, Tu-Lu Liang, Li-Ye Xiao, Xue-Song Yang, Haiyan Ou   +5 more
doaj   +1 more source

Exploratory Analysis of Benchmark Experiments -- An Interactive Approach [PDF]

, 2009
The analysis of benchmark experiments consists in a large part of exploratory methods, especially visualizations. In Eugster et al. [2008] we presented a comprehensive toolbox including the bench plot.
Eugster, Manuel J. A., Leisch, Friedrich
core   +1 more source

An Iterative Procedure for the Estimation of Drift and Diffusion Coefficients of Langevin Processes

, 2005
A general method is proposed which allows one to estimate drift and diffusion coefficients of a stochastic process governed by a Langevin equation. It extends a previously devised approach [R.
A. Nawroth, D. Kleinhans, Frank, Frank, Friedrich, Friedrich, Friedrich, Friedrich, Gardiner, Gradisek, Haken, Haken, J. Peinke, Jafari, Kriso, Kuusela, R. Friedrich, Ragwitz, Ragwitz, Renner, Risken, Siegert, Sura, Sura, Tutkun, Weinstein, Wächter   +26 more
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The problem of the Russian Federation image formation by German think tanks in the context of the Syrian crisis (case of Friedrich-Ebert-Stiftung)

Vestnik RUDN. International Relations, 2018
The relevance of the research topic due to the ever-increasing role of the analytical institutions in the process of formation of Russia’s image in the public consciousness.
Natalia Viktorovna Ivkina
doaj   +1 more source

A Precise-Integration Time-Domain Formulation Based on Auxiliary Differential Equation for Transient Propagation in Plasma

IEEE Access, 2020
The electromagnetic wave propagation through plasma medium is one of the most important research fields in computational electromagnetics. A numerical formulation based on both the auxiliary differential equation (ADE) and the precise-integration time ...
Zhen Kang, Weilin Li, Yufeng Wang, Ming Huang, Fang Yang   +4 more
doaj   +1 more source

Geometric and projection effects in Kramers-Moyal analysis

, 2009
Kramers-Moyal coefficients provide a simple and easily visualized method with which to analyze stochastic time series, particularly nonlinear ones. One mechanism that can affect the estimation of the coefficients is geometric projection effects. For some
H. Kantz, H. Risken, R. Zwanzig, Steven J. Lade   +3 more
core   +1 more source

How to quantify deterministic and random influences on the statistics of the foreign exchange market [PDF]

, 1999
It is shown that prize changes of the US dollar - German Mark exchange rates upon different delay times can be regarded as a stochastic Marcovian process. Furthermore we show that from the empirical data the Kramers-Moyal coefficients can be estimated.
A. Arneodo, A. N. Shiryaev, C. Beck, C. W. Gardiner, Ch. Renner, D. T. Gillespie, F. Schmitt, H. Risken, J. C. Vassilicos, J. Peinke, N. G. Van Kampen, P. Hänggi, R. Friedrich, R. Friedrich, R. Friedrich, R. N. Mantegna, R. N. Mantegna, S. Ghashghaie, U. A. Müller, U. Frisch   +19 more
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Ozone measurement practice in the laboratory using Schönbein's method [PDF]

Geoscience Communication, 2020
We present a laboratory technique to measure tropospheric ozone, following a traditional method developed by Christian Friedrich Schönbein in the 19th century.
I. A. Ramirez-Gonzalez, J. A. Añel, A. Cid Samamed, A. Cid Samamed, A. Cid Samamed   +4 more
doaj   +1 more source

Image database system for glaucoma diagnosis support [PDF]

, 2008
Tato práce popisuje přehled standardních a pokročilých metod používaných k diagnose glaukomu v ranném stádiu. Na základě teoretických poznatků je implementován internetově orientovaný informační systém pro oční lékaře, který má tři hlavní cíle.
Peter, Roman
core  

Killing spinors in supergravity with 4-fluxes

, 2003
We study the spinorial Killing equation of supergravity involving a torsion 3-form $\T$ as well as a flux 4-form $\F$. In dimension seven, we construct explicit families of compact solutions out of 3-Sasakian geometries, nearly parallel $\G_2$-geometries
Agricola I Friedrich Th, Ali T, Baum H, Behrndt K Jeschek C, Bilal A Derendinger J-P Sfetsos K, Boyer C, Duff M J, Figueroa-OFarrill J Papadopoulos G, Friedrich Th, Friedrich Th, Friedrich Th, Friedrich Th, Ilka Agricola, Kirchberg K-D, Thomas Friedrich   +14 more
core   +3 more sources