نتایج جستجو برای: density profile
تعداد نتایج: 617643 فیلتر نتایج به سال:
in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...
A computer simulation model is used to study the density profile and flow of a miscible gaseous fluid mixture consisting of differing constituent masses (mA = mB/3) through an open matrix. The density profile is found to decay with the height ∝ exp(−mA(B)h), consistent with the barometric height law. The flux density shows a power-law increase ∝ (pc − p) μ with μ ≃ 2.3 at the porosity 1− p abov...
The model fluids containing hard ellipses (HEs) and Gay-Berne (GB) particles where their center is moving in one dimension and confined between two parallel walls with different interactions are investigated using Monte Carlo simulation, NVT ensemble. The dependency of fluid pressure with respect to the wall distances is studied. The oscillatory behaviors are seen in this quantity against ...
We present an XMM-Newton mosaic observation of the hot (kT ∼ 6.5 keV) and nearby (z = 0.0881) relaxed cluster of galaxies A478. We derive precise gas density, gas temperature, gas mass and total mass profiles up to 12 ′ (about half of the virial radius R 200). The gas density profile is highly peaked towards the center and the surface brightness profile is well fitted by a sum of three β–models...
aim and background: previous studies suggest that mental stress may influence serum lipid levels. this study was conducted on adult population living in rural and urban areas in central iran to assess the correlation between stress levels and lipid profile disorders. methods and materials: data was extracted from final evaluation of isfahan healthy heart program (ihhp) in 2008. multistage clust...
background: concerns have been raised about the possibility of a predisposition of kawasaki disease (kd) to abnormal lipid profile after an acute phase of disease, which can predispose them to premature atherosclerosis later in life. we determined the lipid profile of children late after kd, and compared it with controls. methods: this historical cohort was conducted on 32 subjects: 16 children...
objective: patients with metabolic syndrome are prone to cardiovascular disease and diabetes. regarding the importance of nutritional factors in management of metabolic syndrome, this study was designed to evaluate the effects of dark chocolate consumption on serum lipid profile in patients with metabolic syndrome. materials and methods: in this randomized clinical trial, 114 patients with meta...
A simple analytical ansatz, which has been used to describe the intensity profile of the similariton laser a laser with self-similar propagation of ultrashort pulses , is used as a variational wave function to solve the Gross-Pitaevskii equation for a wide range of interaction parameters. The variational form interpolates between the noninteracting density profile and the strongly interacting T...
Background and Aim: Selenium is an essential mineral with antioxidant properties that play a role in metabolic processes, and its relationship with lipid profile has been shown in some studies. The purpose of this study was to investigate the effect of intake selenium supplementation on lipid profile and cardio-respiratory function in rest situation and subsequent an exercise session in active ...
the entrainment of a stably stratified layer into a turbulent mixed layer in a confined region has been studied in the laboratory for different richardson numbers, ri. the results include direct observation of turbulent characteristics and density measurements using two high precision salinity meters. the measurements include turbulence intensity, scale of eddies near the interface and energy s...
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