نتایج جستجو برای: nfd model
تعداد نتایج: 2104407 فیلتر نتایج به سال:
Advances in imaging techniques for diagnostic purposes and for guiding percutaneous coronary interventions and the demographic changes in the population mean that increasing numbers of patients are undergoing studies with iodine contrast agents. When no recognized risk factors are present and renal function is normal, exposure to such agents does not require any special caution. However, elderl...
BACKGROUND The efficacy of artemisinin-based combination therapy (ACT) for Plasmodium falciparum malaria may be threatened by parasites with reduced responsiveness to artemisinins. Among 298 ACT-treated children from Mbita, Kenya, submicroscopic persistence of P. falciparum on day 3 posttreatment was associated with subsequent microscopically detected parasitemia at days 28 or 42. METHODS DNA...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
چکیده ندارد.
the purpose of this study was to examine the status of supervision on departments’ heads at ferdowsi university of mashhad (fum) and realize some applied themes to provide a fit model for supervising departments’ heads in fum. the method was case study under a research category aimed for applied one. using purposive sampling, interviews were conducted with top fum managers, head departments, an...
the aim of this thesis is an approach for assessing insurer’s solvency for iranian insurance companies. we use of economic data with both time series and cross-sectional variation, thus by using the panel data model will survey the insurer solvency.
توسعه و افزایش تولید صنایع و در پی آن رشد اقتصادی و اجتماعی یک جامعه در قرن جدید، با خودکار کردن روندهای تولید گره خورده است. یکی از اجزای خودکار ساختن صنایع، استفاده از روباتها در چرخه تولید به منظورهای مختلف می¬باشد؛ رنگ پاشی، جابجایی، نصب قطعات و جوشکاری بخش کوچکی از فضایی است که به روباتهای کارا نیازمند است. پس از استفاده فراوان از روباتهای سرال در صنایع و انجام پژوهشهای پایه¬ای بر روی طراح...
Frost events are of particular importance for plants. Its occurrence determines growing season. Early or late frost may cause injuries and damage in plants which have not yet entered dormancy fall/winter, flowering period winter/spring. Global average temperature increase has been accompanied by changes extreme events. Observations shown that there a decreasing pattern frequencies intensities I...
the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...
the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید