نتایج جستجو برای: experimental equation
تعداد نتایج: 927431 فیلتر نتایج به سال:
in this research, papaya slices with dimensions of 0.5×2×5 cm3 were dried at 45 °c using a cabinet dryer in which drying air velocity and relative humidity were 0.9 m/s and 30%, respectively. the moisture diffusion coefficient of papaya was determined in this drying condition. mass transfer equation with its boundary conditions was solved based on finite difference method. finally, coefficient ...
Abstract The Landau–Lifshitz (LL) equation has been proposed as the classical to describe dynamics of a charged particle in strong electromagnetic field when influenced by radiation reaction. Until recently, there no clear experimental verification. However, aligned crystals have remedied situation: here, Nielsen et al CERN NA63 Collaboration (2020 Phys. Rev. D 102 052004), we report on quantit...
in order to represent the potential energy function over the whole range of r, many potentialenergy functions have been proposed. in the present paper, we employ many potential energyfunctions, to use numerov method for solving the nuclear schrödinger equation for the ifmolecule, as an example of a heteronuclear diatomic molecules. then we determine thespectroscopic constants eω , e e x ω , e b...
critical thinking ability has an important role in education. accordingly, scholars around the world are searching for new ways for teaching and improving students critical thinking ability. in line with the studies in efl contexts supporting the positive relationship between critical thinking and writing performances, this study investigated the differential effects of halverson’s critical thi...
The purpose of this work is to present a simple and inexpensive experiment to study the drainage of a cylindrical vessel. The experimental set up consists of a transparent cylinder and a web cam or a digital camera connected to a computer. The model proposed to explain the results makes use of Bernoulli’s equation for real flows that includes energy losses. The experiment allows us to test thor...
In this paper, the heat balance of an engine was investigated experimentally. The experimental work was conducted on the EF7 natural gas fueled and turbocharged engine. The main goal was to develop an empirical equation to be able to predict the heat balance of the engine at various loads and conditions. The data were collected at four different conditions, two different loads and two differ...
a modification of peng-robinson equation is described wherein in the parameter b is expressed as a linear function of temperature. the modified equation is then applied to a series of light hydrocarbons and refrigerants, and predicted values for vapor pressure, saturated vapor volume, saturated liquid volume and the heat of evaporation are compared with the corresponding experimental data. cons...
This study makes use of the Tsallis entropy to predict the shear stress distribution. Given a definition of the Tsallis entropy, it is maximized by using the probability density function, which then is used to attain a novel shear stress equation. This is then employed for calculating the shear stress distribution in rectangular channels in different aspect ratios and finally, for viability, th...
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