نتایج جستجو برای: volumetric properties

تعداد نتایج: 890870  

Journal: :physical chemistry research 0
avatef handali department of chemistry, ahvaz branch, islamic azad university, ahvaz, iran sina kianersi acecr-production technology research institute, ahvaz, iran

densities and viscosities of binary mixtures of methyl tert-butyl ether (mtbe) with 1-alkanols include 1-butanol, or +1-pentanol, or +1-hexanol, or +1-heptanol were measured as a function of composition from 293.15 to 308.15 k at atmospheric pressure. the temperatures studied were 293.15, 298.15, 303.15 and 308.15 k. the experimental results have been used to calculate the viscosity deviation d...

Journal: :physical chemistry and electrochemistry 0
seyyed mostafa hosseini young researchers and elite club, marvdasht branch, islamic azad university,marvdasht, iran abstract

calculate some thermodynamic properties of molten polymers including specific volume and isothermal compressibility (s.m. hoseini, physical chemistry & electrochemistry, 2 (2014) 56-65). this work extended that eos to predict the volumetric properties of some molten ethylene copolymers including ethylene/1-octene, ethylene/1-butene (xethylene equal to 0.8543 and 0.563), ethylene/propene. the ab...

Densities and viscosities of binary mixtures of methyl tert-butyl ether (MTBE) with 1-alkanols include 1-butanol, or +1-pentanol, or +1-hexanol, or +1-heptanol were measured as a function of composition from 293.15 to 308.15 K at atmospheric pressure. The temperatures studied were 293.15, 298.15, 303.15 and 308.15 K. The experimental results have been used to calculate the viscosity de...

seyyed mostafa Hosseini

calculate some thermodynamic properties of molten polymers including specific volume and isothermal compressibility (S.M. Hoseini, Physical Chemistry & Electrochemistry, 2 (2014) 56-65). This work extended that EOS to predict the volumetric properties of some molten ethylene copolymers including ethylene/1-octene, ethylene/1-butene (xethylene equal to 0.8543 and 0.563), ethylene/propene. The ab...

In the present work, a modified equation of state has been presented for the calculation of volumetric properties of supercritical fluids. The equation of state is van der Waals basis with temperature and density-dependent parameters. This equation of state has been applied for predicting the volumetric properties of fluids. The densities of fluids were calculated from the new equation of state...

Journal: :Math. Oper. Res. 2000
Kurt M. Anstreicher

We consider the volumetric barrier for semide2nite programming, or “generalized” volumetric barrier, as introduced by Nesterov and Nemirovskii. We extend several fundamental properties of the volumetric barrier for a polyhedral set to the semide2nite case. Our analysis facilitates a simpli2ed proof of self-concordance for the semide2nite volumetric barrier, as well as for the combined volumetri...

Journal: :physical chemistry and electrochemistry 0

thermophysical properties of fluorine are interesting because of its applications in different areas of technologyand industry. the computations of thermodynamic properties were performed with the gma equation of stateunder critical conditions. the present work reports calculations of density, volumetric, and thermodynamicproperties of liquid fluorine on extended ranges of pressure and temperat...

1998
Kurt M. Anstreicher

We consider the volumetric barrier for semideenite programming, or \generalized" volumetric barrier, as introduced by Nesterov and Nemirovskii. We extend several fundamental properties of the volumetric barrier for a polyhedral set to the semideenite case. Our analysis facilitates a simpliied proof of self-concordancy for the semideenite volu-metric barrier, as well as for the combined volumetr...

Journal: :Journal of Physical and Chemical Reference Data 1982

Journal: :physical chemistry and electrochemistry 0
p khorramzadeh department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran nima karachi department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran seyyed mostafa hosseini young researchers and elite club, marvdasht branch, islamic azad university, marvdasht, iran

an analytical equation of state has been previously modified by papari et al. for representing the volumetric properties of molecular fluids. however the performance of that eos has not been yet well investigated for refrigerant fluids. this study extended that equation to 19 liquid refrigerants to predict their densities at isothermal and saturated states. two temperature-independent parameter...

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