نتایج جستجو برای: based fluid
تعداد نتایج: 3119111 فیلتر نتایج به سال:
In the present work the effect of Cu-Water nanofluid, as heat transfer fluid, on the performance of a parabolic solar collector was studied numerically. The temperature field, thermal efficiency, mean-outlet temperatures have been evaluated and compared for the conventional parabolic collectors and nanofluid based collectors. Further, the effect of various parameters such as fluid velocity, vol...
In this research, wave propagation analysis in polymeric smart nanocomposite micro-tubes reinforced by single-walled carbon nanotubes (SWCNT) conveying fluid is studied. The surrounded elastic medium is simulated by visco-Pasternak model while the composite micro-tube undergoes electro-magneto-mechanical fields. By means of micromechanics method, the constitutive structural coefficients of nano...
In this article, the vibrational behavior of a spinning cylindrical thick shell carrying spring- mass systems and conveying viscos fluid flow under various temperature distributions is investigated. This structure rotates about axial direction and the formulations include the coriolis and centrifugal effects. In addition, this system is conveying viscous fluid, and the related force is calculat...
Gout and rheumatoid arthritis (RA) are relatively common diseases however, the coexistence of these two conditions has been rarely reported. The author presents a case that was followed for 20 years as RA and gout was also diagnosed based on nodular lesion on feet joints, tap nodules and noticing crystals of uric acid in synovial fluid. In RA patients with severe joint swelling, physicians shou...
Background and purpose: Etiology of rheumatoid arthritis is not fully recognized. The purpose of this study was to use universal and specific primers to trace bacteria in the blood and synovial fluid in patients with rheumatoid arthritis. Materials and methods: In this experimental study, a PCR method was developed to identify a wide range of bacteria in general and Staphylococcus aureus in sp...
During mold filling, molten metal can only advance as quickly as the air inside thecavity is expelled. In this work an analytical model describing air flow is developed based on aincompressible flow theory. Air pressure has serious effects upon the filling behaviour such assurface profile and filling time. In this work a new mathematical model is proposed for calculationthe air pressure during ...
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