نتایج جستجو برای: wall function

تعداد نتایج: 1359342  

Journal: :international journal of architectural engineering and urban planning 0
elaheh najafi iran university of science and technology,, narmak, tehran mohsen faizi iran university of science and technology,, narmak, tehran ali mohammad khanmohammadi iran university of science and technology,, narmak, tehran fatemeh mehdizade saradj iran university of science and technology,, narmak, tehran

this paper classifies green envelopes as green roofs and green walls according to effective factors, which were derived from literature to compare the green envelopes’ thermal and energy performance in a more effective way. for this purpose, an extensive literature review was carried out by searching keywords in databases and studying related journal papers and articles. the research method for...

Journal: :دراسات فی اللغه العربیه و آدابها 0
وحید حیدری مربی، گروه مرمت بنا،دانشکده هنر، دانشگاه سمنان، (نویسنده مسئول) هومان مقدادیان کارشناس ارشد، مرمت و احیاء بناها و بافت های تاریخی صادق پرتانی دانشجوی دکترا، مهندسی آب،دانشگاه تهران هادی جهان آبادیان کارشناس ارشد، مرمت و احیاء بناها و بافت های تاریخی بابک امین پور کارشناس ارشد، ژئوفیزیک

doruntash ancient city )tchoghazanbil( was built about13 th century b.c and middle period of elam civilization. as a complex ,doruntash was protected by three concentrated walls which are named: inner wall, middle wall and outer wall .big ziggurat ,mausoleums and palaces are some of the must monuments of the ancient city .tchoghazanbil is also famous for its water technologies and water element...

We study the problem of a quantum particle in an infinite one dimensional potential well with a moving wall. Based on the effective Hamiltonian approach and using the gauge transformation concepts, we show that the effect of the moving wall appears as an extra phase factor in the wave function which depends on the velocity of the wall. 

Journal: :archives of cardiovascular imaging 0
zahra ojaghi haghighi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; md, facc,echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran. tel: +98-2123922134, fax: +98-2122055594 azin alizadehasl cardiovascular research center, tabriz university of medical sciences, tabriz, ir iran majid maleki echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran nasim naderi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran maryam esmaeilzadeh echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran fereidoon noohi echocardiography research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran

background recently, assessment of the atrial motion and deformation indices obtained via doppler myocardial imaging (dmi) has been proposed as a new method of exploring the atrial function. objective our aim was to assess the right atrial (ra) regional function using myocardial velocities, strain, and strain rate imaging (sri) and compare it with the function of the inter-atrial septum (ias) a...

Journal: :مهندسی عمران فردوسی 0
جعفر بلوری بزاز سعید رسولی

several relationships to assess at-rest pressure coefficient in retaining walls, have been developed by different researchers. these suggested relationships are generally a function of mechanical soil parameters such as internal friction angel, poison ratio and over-consolidation ratio. in integral bridges, however, this coefficient is also a function of many other parameters other than soil ch...

Journal: :international journal of civil engineering 0
a. kaveh iust a. shakouri mahmud abadi bhrc

cost optimization of the reinforced concrete cantilever soil retaining wall of a given height satisfying some structural and geotechnical design constraints is performed utilizing harmony search and improved harmony search algorithms. the objective function considered is the cost of the structure, and design is based on aci 318-05. this function is minimized subjected to design constraints. a n...

Journal: :archives of cardiovascular imaging 0
fariba bayat cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran; cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran mehdi nazmdeh cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran morteza safi cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran amirsaeed karimi islamic azad university, medical branch, tehran, ir iran latif gachkar infectious diseases and tropical medicine research center ,shahid beheshti university of medical sciences, tehran, ir iran

conclusions pci was accompanied by some improvement in left atrial deformation indices as assessed by tissue doppler imaging. revascularization can, therefore, improve patient outcome. results regarding changes in left trial functional parameters after pci, those such as the strain of the septal wall and the anterior and inferior walls and the strain rate of the anterior and lateral walls signi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران 1378

یکی از روشهای متداول برای جلوگیری از تغییر شکل و خواص قطعات در تماس با گازهای داغ، از قبیل پره توربین و دیواره محفظه احتراق، استفاده از تکنیک سرمایش لایه ای (film cooling) می باشد. در روش سرمایش لایه ای شکافی (slot film cooling) سیال خنک کن مانع مانع از انتقال حرارت بین گازهای داغ و سطح فلز می شود. در این حالت می توان تحلیل جریان را به صورت دوبعدی انجام داد. اما در روش سرمایش لایه ای تک سوراخه ...

Journal: :iranian journal of nuclear medicine 2003
mohsen saghari mohammad taghavi armaghan fard-esfahani babak fallahi mohammad eftekhari

fixed myocardial defects in both stress and rest images, could be artifactual as a result of soft tissue attenuation. to increase specificity and identify the false positive results, we used gated technique to evaluate the wall motion and wall thickening as an index to differentiate real ischemic lesions from artifactual defects. 93 patients were studied. in 46 patients (48.8%) fixed perfusion ...

Journal: :International Journal of Heat and Fluid Flow 2018

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