نتایج جستجو برای: model structure

تعداد نتایج: 3408796  

Journal: :مکانیک سیالات و آیرودینامیک 0
محمد تشکری بافقی محمدرضا الهامی علیرضا ربیعی

in this paper, the fluid-structure interaction phenomenon and the research history are described. then due to the complex and specific working conditions of a turbine blade, we have investigated the phenomenon on this subject. the fluid-structure interaction on a turbine blade model has been simulated by using structural and fluid flow section of ansys software. a model of turbine blade with ai...

Journal: :research in pharmaceutical sciences 0
m shahlaei a fassihi a nezami

in the present study, quantitative relationships between molecular structure and anti-tubercular activity of some 5-methyl/trifluoromethoxy-1 h -indole-2,3-dione-3-thiosemicarbazone derivatives were discovered. the detailed application of an efficient linear method and principal component regression (pcr) for the evaluation of quantitative structure activity relationships of the studied compound...

Journal: :Environmental Modelling & Software 2020

Afkhami Ardekani, M., Alimohammadi Ardekani, M.,

Traditional DEA method considered decision making units (DMUs) as a black box, regardless of their internal structure and appraisal performance with respect to the final inputs and outputs of the units. However, in many real systems we have internal structure. For this reason, network DEA models have been developed. Parallel network DEA models are a special variation which inputs of unit alloca...

Journal: :journal of reports in pharmaceutical sciences 0
mohsen shahlaei department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, po box: 67145-1673, and nanosciences and technology research center, kermanshah university of medical sciences, kermanshah, iran atefeh mousavi

despite a quite short early history, computational drug design and discovery methods can now be efficient in reducing costs and speeding up drug developing procedure. melanocortin-4 receptor (mc4r) is a g protein-coupled receptor implicated in the regulation of body weight. despite its clinical reputation, there is a lack of in-depth knowledge about structure and behavior of mc4r in lipid bilay...

Journal: :iranian economic review 0
nooraddin sharify university of mazandaran, department of economics

abstract this paper proposes an approach to find an optimum structure for educational levels of human forces. to this end, a linear programming (lp) model integrated with a social accounting matrix (sam) was employed. the integrated model was employed using the sam of golestan province of iran. it was demonstrated that when unemployment is the result of inconsistency between supply and demand f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

Journal: :international journal of advanced design and manufacturing technology 0
yahya khatami hamid ahmadian

the problem of crack identification in continuous beam like structures is considered. the cracks’ locations and their depths are identified by employing experimental modal test results performed on the structure. the cracks are modeled using generic elements to include the coupling effects between shear forces and bending moments at the crack section. in the identification procedure eigen- sens...

Journal: :تحقیقات اقتصادی 0
حسین سجادی دانشیار گروه حسابداری دانشگاه شهید چمران حسن فرازمند استادیار گروه اقتصاد دانشگاه شهید چمران اهواز بهروز بادپا کارشناس ارشد حسابداری

the purpose of this research is investigation of application of the arbitrage pricing theory and effect of unanticipated changes in a set of macroeconomic variables such as inflation rate, money supply, exchange rate, oil price, term structure and industrial production on expected security return in tehran stock exchange. in this research, data are analyzed quarterly for the period of 1997-2008...

Journal: :پژوهشنامه آموزش زبان فارسی به غیر فارسی زبانان 0
محمود بی جن خان عضو هیات علمی دانشگاه تهران پروانه شایسته فر محقق پسا دکتری دانشگاه تهران

the factor structure of the listening section of a persian language proficiency test (plpt), developed and used for academic purposes, was examined in this study. a structural equation modeling (sem) was employed using amos (v. 18) to analyze the responses of a number of persian language learners (n=120) who participated in the first piloting phase of the test in 2014. to examine whether the li...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید