نتایج جستجو برای: mass behavior

تعداد نتایج: 1076554  

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2014
p. r. mashaei mashaei s. m. hosseinalipour k. esmailpour

in recent years, impinging streams have received increasing interest for their high efficiency in heat and mass transfer. this numerical study was conducted to investigate flow and heat transfer characteristics of one-way opposing jets of non-newtonian fluids. effects of reynolds number impinging angle, momentum ratio and flow behavior index on mixing index were evaluated. the results showed im...

ژورنال: مجله دندانپزشکی 2013
داوری, عبدالرحیم , محمدی, نجمه پور , نسب, مجید موسوی , کاظمی, علیرضا دانش ,

  Background and Aims: Different adhesives with different solvents may have different solvent evaporation rates. The purpose of this study was to evaluate the solvent evaporation in the self etch and total etch adhesive in different air drying times.   Materials and Methods: Five adhesives were used in this study: Excite, Prime & Bond NT, UNO, Single Bond, SE Bond Primer. Twelve drops of each a...

A. Aryaei A. R. Shahani* H. Esmaili M. Najar S. Mohammadi

In this paper, the dynamic simulation for a high pressure regulator is performed to obtain the regulator behavior. To analyze the regulator performance, the equation of motion for inner parts, the continuity equation for diverse chambers and the equation for mass flow rate were derived. Because of nonlinearity and coupling, these equations are solved using numerical methods and the results are ...

Drying represents one of the oldest unit operations employed in industrial processes. Drying is viewed as a process of simultaneous heat and mass transfer. Porous Clay-like material undergoes stresses due to non-uniform distribution of temperature and moisture induced by heat and mass transfer respectively. The aim of this work is to simulate the stresses induced by heat and mass transfer durin...

DIVANDARI M., , KHARAZI Y.H.K., ,

The mold-filling behavior in the casting of aluminum alloy (A413) using lost foam casting (LFC) was explored. The effects of gate numbers, type of gating and casting thickness on the filling behavior were evaluated. Although, unlike convectional casting process, the gating system showed little effect onfilling ability, casting thickness created a greater effect on the mold filling. In contrast ...

Journal: :The astrophysical journal 2022

Abstract The polytropic process characterizes the thermodynamics of space plasma particle populations. index, γ , is particularly important as it describes thermodynamic behavior system by quantifying changes in temperature compressed or expanded. Using Wind spacecraft and magnetic field data during 1995 February–2015 December, we investigate evolution 336 interplanetary coronal mass ejection (...

Journal: :International Journal of Concrete Structures and Materials 2020

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