نتایج جستجو برای: ddscat simulation

تعداد نتایج: 559006  

Journal: :Optics 2023

We model the effects of photosensitive parameters aerosols on their optical properties to provide a solid framework for further experimental and theoretical studies. A spherical dust particle is used study ambient medium, size, surface roughness, wavelength, imaginary part complex refractive index. Five Gaussian random spheres with different aspect ratios are simulated dependence aerosol light ...

Journal: :international journal of management and business research 0
s. izadin department of information technology management, science and research branch, islamic azad university, tehran, iran r. radfar department of industrial management, science and research branch, islamic azad university, tehran, iran j. nazemi department of industrial management, science and research branch, islamic azad university, tehran, iran

the acceptance of the right project which leads to the realization of the set objectives is one of the most important issues in project-oriented companies. therefore, corporate managers prefer to work on those projects which ensures the achievement of goals such as increasing financial profits or being the top brands in their rivals market. the present  research aimed at introducing  a systemat...

Journal: :international journal of management and business research 2015
s. izadin r. radfar j. nazemi

the acceptance of the right project which leads to the realization of the set objectives is one of the most important issues in project-oriented companies. therefore, corporate managers prefer to work on those projects which ensures the achievement of goals such as increasing financial profits or being the top brands in their rivals market. the present  research aimed at introducing  a systemat...

Journal: :journal of physical & theoretical chemistry 2009
m. monajjemi a. r. oliaey

the determination of gyration radius is a strong research for configuration of a macromolecule. italso reflects molecular compactness shape. in this work, to characterize the behavior of theprotein, we observe quantities such as the radius of gyration and the average energy. we studiedthe changes of these factors as a function of temperature for acetylcholine receptor protein in gasphase with n...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

Journal: :آب و خاک 0
محبوبه زارع زاده مهریزی امید بزرگ حداد

abstract one of the major factors on the amount of water resources is river flow which is so dependent to the hydrologic and meteorologic phenomena. simulation and forecasting of river flow makes the decision maker capable to effectively manage the water resources projects. so, simulation and forecasting models such as artificial neural networks (anns) are commonly used for simulation and predi...

Journal: :international journal of civil engineering 0
d.p. chen 2# west beijing raod, nanjing city, china c.w. miao 2# west beijing raod, nanjing city, china j.p. liu 2# west beijing raod, nanjing city, china m.s. tang 30# xinmofan road,nanjing city, china

this paper presents theoretical and numerical state-of-the-art information in the field of hygro-thermo-mechanical deformation simulation in structural concrete. the aspects discussed include coupled hygro-thermo-mechanical performance of porous materials including concrete, multi-scale simulation of concrete properties especially the volumetric and structural deformation performance, and the m...

Journal: :iranian red crescent medical journal 0
afsoon aeenparast department of health services management, mother and child health research center, iranian institute for health sciences research, acecr, tehran, ir iran; clinical research center, milad hospital, tehran, ir iran; department of health services management, mother and child health research center, iranian institute for health sciences research p.o. box: 13145-1756, tehran, ir iran. tel: +98-2166480804, fax: +98-2166480805 seyed jamaleddin tabibi school of management science and medical information, tehran university of medical sciences and health services, tehran, ir iran kamran shahanaghi college of industrial engineering, iran university of science and technology, tehran, ir iran mir bahador aryanejhad college of industrial engineering, iran university of science and technology, tehran, ir iran

conclusions using the simulation as a decision making tool helps us to decide how we can reduce outpatient's waiting time. comparison of outputs of this scenario and the based- case scenario in simulation model shows that combining physician's work time changing with patient's admission time changing (scenario 9) would reduce patient waiting time about 73.09%. due to dynamic and complex nature ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی برق و کامپیوتر 1391

this thesis is presented 10 ghz voltage controlled ring oscillator for high speed application. the voltage controlled ring oscillator was designed and fabricated in 0.13یm cmos technology. the oscillator is 7-stages ring oscillator with one inverter replaced by nand-gate for shutting down in the ring oscillator during idle mode. tri-state inverter was used to control of 126 bit vector in ri...

Journal: :international journal of civil engineering 0
n. adamko university of zilina v. klima university of zilina p. marton university of zilina

railway service terminals are the places of a railway network usually equipped with costly technology based on highly complicated technological procedures demanding a high degree of coordination and control skills. design of these systems and the organization of their operation should facilitate reaching to the required capacity together with high quality of service processes as well as minimal...

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