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السجلات المعروضة 31 -- 40 من 48
Effect Of Field Environmental Exposure Conditions On The Properties Of Hardened Concrete
(
Qatar University
, 1993 , Article)
The effects of harsh field environmental exposure conditions on compressive, tensile and flexural strengths and durability aspects of concrete such as chloride penetration, sulphate attack and carbonation were investigated ...
Assessment Of Blending Local And Imported Aggregates On Properties Of Their Asphalt Concrete Mixtures
(
Qatar University
, 1995 , Article)
Environmental conditions in the State of Qatar together with lack of good-quality aggregates seem to severely reduce the service lives of constructed pavements. The current practice of road construction agencies in Qatar ...
Liquid Density Of Pure And Multicomponent Fluids By Scaled-Variable-Reduced-Coordinate (Svrc) Method
(
Qatar University
, 1995 , Article)
The Scaled-Variable-Rcduced-Coordinatc (SVRC) method with a proposed set of mixing rules are applied to calculate the liquid density of several system of liquid mixture and satisfactory results are obtained. The ability ...
Ultrasonic Characterization, Tensile Testing And Thermal Properties Of Y Irradiated Low Density Polyethylene, Fb 5005
(
Qatar University
, 1997 , Article)
Ultrasonic pulse-echo technique, tensile testing and thermal gravimetric analysis have been utilised to characterise and monitor the effect of y irradiation on the physicomechanical properties of low density polyethylene ...
Use Of Spreadsheets For Rainfall-Runoff Calculations
(
Qatar University
, 1996 , Article)
The nature of rainfall-runoff calculations necessitates the use of different
equations for calculating losses and several response functions to route the
effective rainfall hyetograph through the catchment. The ...
Viscosity Of Hydrocarbon Liquids Saturated With Gas
(
Qatar University
, 1995 , Article)
Experimentally measured kinematic viscosities are reported for benzene, cyclohexane and n-heptane saturated with hydrogen, nitrogen and carbon dioxide. A Zeitfuchs cross-arm viscometer suspended in a unique design ...
A Model For A Narrow-Cut Fractionating Column
(
Qatar University
, 1997 , Article)
A mathematical model was developed to simulate the operation of a narrow-cut fractionating column. The model can calculate boiling point and dew point on the feed plate, the number of liquid and vapour moles, the enthalpy ...
Economic And Thermal Performance Of Thermostone In Qatar
(
Qatar University
, 1996 , Article)
This paper is concerned with the performance characteristics of thermostone as a building material, and their comparison with those of hollow concrete blocks. Carrier Advanced Load Program (E20-II) was used to estimate the ...
Catalytic Oxidation Of Petroleum Waxy Distillates
(
Qatar University
, 1994 , Article)
The catalytic oxidation of petroleum waxy distillate (boiling range 400 - 440°C at 760 nun Hg) using KMn04 catalyst and air was studied in a batch reactor. The effect of reaction temperature (100-160°C), air flow rate ...
Correlation Of Vapor-Liquid Equilibrium Data For Binary Mixtures Containing One Polar Component By The Parameters From Group Contributions Equation Of State
(
Qatar University
, 1993 , Article)
Use of a quadratic mixing rule in the Parameters from Group Contributions Equation of State increases the range of compounds for which vapor-liquid equilibrium behavior can be satisfactorily correlated. This is demonstrated ...