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Unsteady State Process Computations On Spreadsheets
(
Qatar University
, 1993 , Article)
Spreadsheets are becoming increasingly popular, as a useful tool, for making process engineering calculations. This paper shows the use of spreadsheets for computations of an unsteady state process described by ordinary ...
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 ...
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 ...
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 ...
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 ...
Numerical Study Of Magneto-Fluid-Mechanics Forced Convection Pipe Flow
(
Qatar University
, 1994 , Article)
The problem of fully developed, laminar, steady, forced convection heat transfer in an electrically conducting fluid flowing in an electrically insulated, horizontal, circular pipe (whose wall is subjected to a uniform ...
Correlations Of Some Tensile Properties For Various Grades Of Low Density Polyethylene
(
Qatar University
, 1994 , Article)
The tensile properties of nine different grades of low density polyethylene were measured, and the relationships resulting from the combination of different pairs of properties were analyzed. It was found that some properties ...
Nonlinear Adaptive Control Of A Permanent Magnet Stepper Motor
(
Qatar University
, 1994 , Article)
This paper considers adaptive position control of a permanent magnet (PM) stepper motor using exact linearization via static state-feedback. Physical outputs are chosen in such a way that the resulting closed-loop system ...
Flash Point For Binary Mixtures
(
Qatar University
, 1994 , Article)
Three flammable binary systems were studied for flash point as a function of liquid mixture composition: 1) decane/dodecane, 2) 0-xylene/cyclohexanol, and 3) 2-propanol/water. The vapor composition was estimated at each ...
Hot Ductility Of Directly Cast Steels With Different Carbon Contents
(
Qatar University
, 1995 , Article)
Tensile samples of Nb containing steels with different carbon contents have been cast in situ, cooled to test temperatures in the range 800-1000 °C and tested at a strain rate of 3x10 s .
The austenite grain sizes of the ...