Calculating Activation Energies in Diffusion Processes Using a Monte Carlo Approach in a Grid Environment

نویسندگان

  • Mark Calleja
  • Martin T. Dove
چکیده

A Monte Carlo based method due to Mishin [1] for obtaining activation energies for ionic transport processes has been implemented for empirical-potential models and used in conjunction with Condor and Globus tools. Results are shown for Na migrating in quartz, and O vacancy hopping in CaTiO3. We also describe the extensions at the Condor/Globus interface we found necessary to implement in order to facilitate transparent file transfer with Condor-G job submission.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A method for range calculation of proton in liquid water: Validation study using Monte Carlo method and NIST data

Introduction: The main advantage of using ion beams over photons in radiotherapy is due to their inverse depth-dose profiles, allowing higher doses to tumors, while better sparing normal tissues. When calculating dose distributions with ion beams, one crucial point is the uncertainty of the Bragg-peak range. Recently great effort is devoted to enhance the accuracy of the comput...

متن کامل

Application of Monte Carlo Simulation in the Assessment of European Call Options

In this paper, the pricing of a European call option on the underlying asset is performed by using a Monte Carlo method, one of the powerful simulation methods, where the price development of the asset is simulated and value of the claim is computed in terms of an expected value. The proposed approach, applied in Monte Carlo simulation, is based on the Black-Scholes equation which generally def...

متن کامل

Monte Carlo calculation of proton ranges in water phantom for therapeutic energies

Introduction: One crucial point when calculating the distribution of doses with ions is the uncertainty of the Bragg peak. The proton ranges in determined geometries like homogeneous phantoms and detector geometries can be calculated with a number of various parameterization models. Several different parameterizations of the range-energy relationship exist, with different level...

متن کامل

Energy Study at Different Temperatures for Active Site of Azurin in Water, Ethanol, Methanol and Gas Phase by Monte Carlo Simulations

The interaction between the solute and the solsent molecules play a crucial role in understanding the various molecular processes involved in chemistry and biochemistry, so in this work the potential energy of active site of azurin have been calculated in solvent by the Monte Carlo simulation. In this paper we present quantitative results of Monte Carlo calculations of potential energies of ...

متن کامل

Diffusion quantum Monte Carlo calculations of the excited states of silicon

The band structure of silicon is calculated at the G , X , and L wave vectors using diffusion quantum Monte Carlo ~DMC! methods. Excited states are formed by promoting an electron from the valence band into the conduction band. We obtain good agreement with experiment for states around the gap region, and demonstrate that the method works equally well for direct and indirect excitations, and th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004