نتایج جستجو برای: carlo mc simulation

تعداد نتایج: 613765  

2005
Ryoichi KIKUCHI

The paper reviews the controversy on the shape of the fcc-based phase diagram near the triple point among the disordered (A1), L1z and L1o phases. The discrepancy was originally between the cluster variation method (CVM) results and Monte Carlo (MC) simulation results, but the controversy developed into how to interpret MC results. The paper examines historically how the controversy started, ho...

Journal: :J. Comput. Physics 2006
Silvia V. Nedea Arjan J. H. Frijns Anton A. van Steenhoven A. P. J. Jansen A. J. Markvoort Peter A. J. Hilbers

We study the properties of a hard-sphere dense gas near the hard walls of micro and nano-channels. Analytical techniques, Monte Carlo (MC) methods and molecular dynamics (MD) simulation methods have been used to characterize the influence of the characteristic parameters such as number density, reduced density, width of the system and molecular diameter, on the equilibrium properties of the gas...

2007
S. Selberherr H. Kosina

In the last decade two dimensional device simulation based on the Drift-Diffusion (DD) model has been widely used and is still of remarkable importance for industrial purposes. When device size shrinks below one micron the electric field often becomes very high and undergoes rapid changes over a small distance. In this situation the DD model begins to fail, while the Monte-Carlo (MC) method bei...

الهی, مهدی, مهدوی, سید ربیع, هاشمی, بیژن,

Background and purpose: The human body is composed of various inhomogenous tissues with a variety of physical and radiological properties. These inhomogeneities could change isodose distributions, increase the probability of geometric errors, and eventually lead to missing of the target irradiation or incorrect isodose coverage in conformal radiation therapy (CRT) due to the uncertainties resul...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2004
C Baig Yu V Kalyuzhnyi S T Cui H D Cochran

The distortion of structure of a simple, inverse-12, soft-disk fluid undergoing two-dimensional plane Couette flow was studied by nonequilibrium molecular dynamics (NEMD) simulation and by equilibrium Monte Carlo (MC) simulation with a nonequilibrium potential, under which the equilibrium structure of the fluid is that of the nonequilibrium fluid. Extension of the iterative predictor-corrector ...

2007
S. Vitanov V. Palankovski S. Murad T. Rödle R. Quay S. Selberherr

For the needs of high electron mobility transistors (HEMTs) optimization a reliable software simulation tool is required. Due to the high electric field in the device channel a hydrodynamic approach is used to properly model the electron transport. We modify an existing hydrodynamic mobility model in order to achieve a better agreement with Monte Carlo (MC) simulation data and measured DC and A...

2013
Adam K. Glaser Stephen C. Kanick Rongxiao Zhang Pedro Arce Brian W. Pogue

We describe a tissue optics plug-in that interfaces with the GEANT4/GAMOS Monte Carlo (MC) architecture, providing a means of simulating radiation-induced light transport in biological media for the first time. Specifically, we focus on the simulation of light transport due to the Čerenkov effect (light emission from charged particle's traveling faster than the local speed of light in a given m...

2015
Leonard W. Zimmermann Ahmad Amoush Douglas A. Wilkinson

This work is a comparative study of the dosimetry calculated by Plaque Simulator, a treatment planning system for eye plaque brachytherapy, to the dosimetry calculated using Monte Carlo simulation for an Eye Physics model EP917 eye plaque. Monte Carlo (MC) simulation using MCNPX 2.7 was used to calculate the central axis dose in water for an EP917 eye plaque fully loaded with 17 IsoAid Advantag...

2005
Tomasz Korzec Francesco Knechtli Ulli Wolff Björn Leder

We investigate the two flavor chiral Gross-Neveu model in the Schrödinger functional on the lattice. The procedure necessary to recover chiral symmetry in the continuum limit of this model with Wilson fermions is discussed. We introduce several useful observables and present a first demonstration of the feasibility of Monte-Carlo simulations in this model. MC simulation of the chiral GN-model T...

A. Hakimi Z. Baharvand

In this study an ultra-broad band, low-power, and high-gain CMOS Distributed Amplifier (CMOS-DA) utilizing a new gain-cell based on the inductively peaking cascaded structure is presented. It is created bycascading of inductively coupled common-source (CS) stage and Regulated Cascode Configuration (RGC).The proposed three-stage DA is simulated in 0.13 μm CMOS process. It achieves flat and high ...

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