نتایج جستجو برای: response factor

تعداد نتایج: 1713930  

Journal: :civil engineering infrastructures journal 0
mussa mahmoudi shahid rajaee teacher training university seyed mohammad reza mortazavi shahid rajaee teacher training university saeid ajdari shahid rajaee teacher training university

response modification factor (r factor) is one of the seismic design parameters to be considered in evaluating the performance of buildings during strong motions. this paper has tried to evaluate the response modification factor of concrete coupled shear wall structures with various length/depth ratios of spandrel beams. the effect of diagonal reinforcement of spandrel beam was also evaluated o...

Journal: :international journal of pediatrics 0
sima tajik department of audiology, faculty of rehabilitation, babol university of medical sciences, babol, ir iran mousa ahmadpour-kacho associate professor of pediatrics, non-communicable pediatric diseases research center, department of pediatrics, amirkola children’s hospital, babol university of medical sciences, babol, ir iran

background hearing loss is the most common congenital disorder the incidence of which is further increased in the presence of risk factors for hearing loss among newborns admitted to the neonatal intensive care unit (nicu). the aim of this study was early diagnosis and intervention for hearing loss in newborns discharged from nicu. materials and methods this prospective cohort study was conduct...

Journal: :journal of current ophthalmology 0
هادی استادی مقدم hadi ostadimoghaddam محمدرضا صداقت mohammad reza sedaghat سیدحسین حسینی یزدی seyyed hosein hoseini yazdi حامد نیازمند hamed niyazmand

purpose : to investigate the correlation between corneal biomechanical properties and tomographic parameters of pentacam methods : corneal biomechanical properties and tomographic results of 36 normal subjects were measured by ocular response analyzer (ora) and pentacam and the correlation between these two measurements were analyzed with pearson correlation test with spss version16. results : ...

Journal: :iranian journal of medical sciences 0
sayyed ehtesham hussain naqvi department of general surgery, jn medical college and hospital aligarh muslim university, aligarh, india atia zaka-ur-rab department of general surgery, jn medical college and hospital aligarh muslim university, aligarh, india najmul islam department of biochemistry, jn medical college and hospital aligarh muslim university, aligarh, india eram ali department of obstetrics and gynecology, jn medical college and hospital aligarh muslim university, aligarh, india

background: inflammatory response following surgical trauma has long been a matter of study. results, however, have been varied. we sought to assess changes in the levels of proinflammatory and anti-inflammatory cytokines in patients undergoing laparoscopic and open cholecystectomy and their impact on the clinical outcome of patients concerning the postoperative pain score. methods: the study i...

Journal: :تحقیقات مهندسی کشاورزی 0
علیرضا کیانی استادیار پژوهش بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی استان گلستان

water shortage in the agricultural sector is currently a major challenge in crop production. the more efficient water usage is that which increases yield without increasing water use. thus, a determination of the water-yield relationship is essential. a field study was conducted to examine water-yield relations in three genotypes of soybeans, including optimum irrigation depth, a comparison of ...

Journal: :asia pacific journal of medical toxicology 0
bita dadpour addiction research centre, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) azam shafahi department of infectious diseases, intensive care unit, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) seyed mostafa monzavi addiction research centre, mashhad university of medical sciences, mashhad, iran.aja university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) abbas zavar addiction research centre, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) reza afshari addiction research centre, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) ali reza khoshdel aja university of medical sciences, tehran, iran

background: the goal of antivenom administration for snake-bitten patients is to achieve therapeutic response (initial control), which means reversal of the venom-induced effects through neutralizing the venom. the aim of this study was to identify snakebite prognostic factors of weak therapeutic response prior to antivenom administration. methods: this was a retrospective study of patients wit...

Journal: :civil engineering infrastructures journal 0
gholamreza abdollahzadeh assistant professor, faculty of civil engineering, babol university of technology hamidreza malekzadeh department of civil engineering, college of engineering, university of shomal, amol, iran

the present research is concerned with the determination of ductility, over-strength and response modification factors of coupled steel shear wall frames. three structural models with various numbers of stories, bay width and coupling beam height were analyzed using static pushover and incremental nonlinear dynamic analyses. the ductility, over-strength and response modification factors for the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران 1381

‏‎the purpose of the present study was to investigate the latent pattern underlying reading ability . some 272 male and female participants. english majors at the ba level , participated in the study. two valid tests were used in this study, the reading test developed exclusively for the purpose of this project and academic reading section of ielts. to investigate the possible latent underlying...

The present research is concerned with the determination of ductility, over-strength and response modification factors of coupled steel shear wall frames. Three structural models with various numbers of stories, bay width and coupling beam height were analyzed using static pushover and incremental nonlinear dynamic analyses. The ductility, over-strength and response modification factors for the...

Journal: :civil engineering infrastructures journal 0
mussa mahmoudi shahid rajaee reacher training university asghar vatani oskouie shahid rajaee teacher training university amin havaran shahid rajaee teacher training university

the knee bracing steel frame (kbf) is a new type of energy dissipating frame which enjoys exceptional ductility and lateral stiffness. rather than the beam-column joint, one end of the diagonal brace in kbf is attached to the knee element. indeed, the knee element as a hysteretic damper is designed and detailed to behave like a structural fuse by sustaining controlled inelastic deformations as ...

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