نتایج جستجو برای: load and resistance factors

تعداد نتایج: 17015959  

2001
Young-Kyo Seo Colby C. Swan

A continuum-based finite-element methodology is established for quantifying the stability of earthen embankments built on saturated soil deposits. Within the methodology the soil is treated as a fluid-solid porous medium, in which the soil skeleton’s constitutive behavior is modeled using a smooth elastoplastic cap model that features continuous coupling between deviatoric and volumetric plasti...

Understanding of the geological characteristics of artificial stone is of particular importance. Appearance, size and dimensions, specification of particle surface and minerals forming aggregates are among the characteristics of rock materials that affect the homogeneous and cladding environment. Volume variations, water absorption, resistance to atmospheric agents and wear resistance are the m...

Journal: :physiology and pharmacology 0
parvin babaei department of physiology, guilan university of medical sciences, rasht, iran ameneh pourrahim ghouroghchi department of physical education and sport sciences, university of guilan, rasht, iran arsalan damirchi department of physical education and sport sciences, university of guilan, rasht, iran bahram soltani tehrani cellular and molecular research center, guilan university of medical sciences, rasht, iran

introduction: obesity and visceral fat accumulation after menopause are associated with insulin resistance and cardiovascular diseases. we investigated the interactive effect of aerobic-resistance training and estrogen replacement therapy on visceral fat, omentin-1 and homa-ir in ovariectomized rats. materials and methods: fifty female wistar rats were ovariectomized (ovx) and divided into 5 gr...

Steel corrosion of bars in concrete structures is a complex process which leads to the reduction of the cross-section bars and decreasing the resistance of the concrete and steel materials. In this study, reliability analysis of a reinforced concrete beam with corrosion defects under the distributed load was investigated using the enhanced Hasofer-Lind and Rackwitz-Fiessler (EHL-RF) method base...

Journal: :Journal of Structural and Construction Engineering (Transactions of AIJ) 1985

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In addition to Erodibility of sediment particles in river increase river sediment load, they are important factors in morphological changes. In the rivers that erodibility is high, trend of morphological changes are intensive that in this case, river is unstable. On the contrary, it will lead stability and low changes of the river. Study area of this research is Saraskanchay that has been locat...

Journal: :civil engineering infrastructures journal 0
arash mohammadi farsani lecture, department of civil engineering, farsan branch, islamic azad university, farsan, iran behrooz keshtegar assistant professor, department of civil engineering, university of zabol, p.o.box: 9861335-856, zabol, iran.

steel corrosion of bars in concrete structures is a complex process which leads to the reduction of the cross-section bars and decreasing the resistance of the concrete and steel materials. in this study, reliability analysis of a reinforced concrete beam with corrosion defects under the distributed load was investigated using the enhanced hasofer-lind and rackwitz-fiessler (ehl-rf) method base...

Journal: :journal of dentistry, tehran university of medical sciences 0
behnam bolhari associate professor, dental research center dentistry research institute, department of endodontics, dental school, tehran university of medical sciences,tehran, iran. elham mojazi amiri associate professor, dental research center dentistry research institute, department of restorative dentistry, dental school, tehran university of medical sciences,tehran, iran. hamidreza kermanshah dentist. sholeh ghabraei endodontist. azad jamei assistant professor, dental research center dentistry research institute, department of endodontics, dental school, tehran university of medical sciences, tehran, iran.

the purpose of this ex- vivo study was to evaluate the fracture resistance of simulated immature teeth, obturated with gutta-percha or resilon and reinforced by either composite resin or fiber post.eighty-four human maxillary incisors were divided into seven groups (n=12). teeth in all groups were prepared until peeso #5 (1.5mm) could be passed through the apex. root ends received 4mm of mta pl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده ادبیات و علوم انسانی 1389

this study purported to compare and contrast the use of self-mention and evidentials as two mtadiscourse features in opinion columns of persian and english newspapers. the theoretical basis of this study is the idea that metadiscourse features vary across cultural boundaries. for this purpose, 150 persian and 150 english opinion columns were collected based on three factors of topic, audience a...

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