نتایج جستجو برای: modeling and simulation

تعداد نتایج: 16952445  

Journal: :Journal of Applied Sciences 2006

Journal: :DEStech Transactions on Computer Science and Engineering 2020

Journal: :iranian journal of radiation research 0
h.r. khosravi department of medical physics, faculty of medicine, tehran university of medical sciences, tehran, iran s. sarkar department of medical physics, faculty of medicine, tehran university of medical sciences, tehran, iran a. takavar department of medical physics, faculty of medicine, tehran university of medical sciences, tehran, iran m. saghari department of nuclear medicine, shariati hospital, tehran university of medical sciences, tehran, iran m. shahriari department of medical radiation, shahid beheshti university, tehran, iran

background: various variance reduction techniques such as forced detection (fd) have been implemented in monte carlo (mc) simulation of nuclear medicine in an effort to decrease the simulation time while keeping accuracy. however most of these techniques still result in very long mc simulation times for being implemented into routine use. materials and methods: convolution-based forced detectio...

Journal: :IOP conference series 2021

Abstract Effective management and possession of smoothly running design processes production, deliveries, is an integral part the modern enterprises. One main instruments planning production simulation modeling. New tools for digital support decision-making at systems. Modeling faster way finding correct solution in view generation exact forecasts, allowing to evaluate different alternatives. T...

Journal: :IEEE Engineering Management Review 2009

Roudbari, Alireza , Saeedi, Milad ,

Background and objectives: Tehran is one of the most polluted cities in the world in terms of air pollution. Modeling is a useful tool in air pollution management. The objectives of this study are to determine the distribution of the main air pollutants concentration in Tehran and to construct a photochemical model appropriate to the geography and natural characteristics of Tehran.   Methods: I...

Journal: :Computers in Industry 2006

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