نتایج جستجو برای: type of fluid
تعداد نتایج: 21274984 فیلتر نتایج به سال:
Spatially homogeneous Bianchi type-II, VIII and IX anisotropic, as well as isotropic cosmological models can be obtained in a scalar tensor theory of gravitation proposed by Saez and Ballester (1986) when the source for energy momentum tensor is a bulk viscous fluid containing one-dimensional cosmic strings. All the models obtained and presented here are expanding, non-rotating and accelerating...
Background: In recent years, many ill cases with cytomegalovirus reactivation in non-immuno compromised persons reported. Goal of study: to determine the CMV infection in cerebrospinal fluid of aseptic meningoencephalitis children hospitalized in Rasul & Mofid hospital (2005-2007). Methods: In a cross sectional study 132 cases selected with simple sampling. CMV-DNA in their Cerebro spinal flui...
due to the complex structure of the pressure-adjusting device used in most sprinklersfor variable irrigation, it is not possible to observe the flow behavior of the water passingthrough the flow field. in this paper, an integral three dimensional (3d) numerical modelbased on the structural characteristics of the fluidic sprinkler was constructed to simulatethe flow field distribution using comp...
Mashkan deposit is located northern Soltanabad, Sabzevar, Khorasan Razavi province, and tectonically, between Eastern Alborz zone, north Sabzevar ophiolite zone and Binalood zone. Geology of the area includes sedimentary rocks like sandstone, limestone, conglomerate, shale, marl and Eocene volcanic units. Barite mineralization as vein-veinlets with the mainly NW-SE trend has cut off the rock un...
1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...
abstract background: better control of blood sugar and reduction of diabetes complications through insulin therapy could convince people to choose this method. however, patients might refuse insulin therapy due to its painful injection, limitations in daily activities, and hypoglycemia. thus, insulin therapy could have both positive and negative effects on patients’ quality of life (qol). there...
One of the most important requirements for industrial pipelines is the leakage detection. In this paper, detection of leak and determination of its amount using radioactive tracer injection method has been simulated by Monte Carlo MCNP code. The detector array included two NaI (Tl) detectors which were located before and after the considered position, measure emitted gamma from radioactive trac...
Increase the number of female students in the universities, the role of entrepreneurial characteristics on the employment of graduates, as well as the importance of agriculture and consequences of disregarding its, has led to evaluation the entrepreneurial characteristics of girl agricultural students in this study. The population of this study randomized is 1780 and 336 female subjects ...
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