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Design And Implementation Of A Microprocessor Controlled Digital Filter
(
Qatar University
, 1991 , Article)
The construction and implementation of a microprocessor controlled real time recursive digital filter have been given. The system designed could also be applied to a variable coefficients system such as ADAPTIVE FILTER and ...
The Prevalence Of Keratinophilic And Saprobic Fungi On Poultry Feathers In Egypt
(
Qatar University
, 1991 , Article)
Two methods were used for the isolation of dermatophytes and other fungi from the feathers of ducks, geese and turkeys: baiting technique and the dilution plate method. 86 species and 3 varieties belonging to 35 genera ...
Study Of Aerobiology Of Alexandria, Egypt
(
Qatar University
, 1991 , Article)
The present study provides a survey of atmospheric pollen and fungal spores in the city of Alexandria with the aim of supplying information that may be useful in the treatment of aeroallergies. Considerable attention has ...
Diagonalizable Indefinite Integral Quadratic Forms
(
Qatar University
, 1991 , Article)
This paper deals with some special cases on Hasse's principle about the diagonalization of Z-lattices L of indefinite regular guadratic forms over Q. It is asserted that for some specific values of a certain set D of ...
Circulation And Water Masses And Their Implication On Pollutant Transport During Summer In Abuquir Bay (Egypt)
(
Qatar University
, 1991 , Article)
Abuquir Bay is a shallow area with a mean depth of about 10 meters, and it is affected by significant sources of industrial and agricultural pollutants. Water masses, the distribution of dissolved oxygen and total suspended ...
Pyrrolizidine alkaloids from heliotropium arbainense and h. Ovalifolium
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Qatar University
, 1991 , Article)
Investigation of the pyrrolizidine alkaloids of Heliotropium arbainense resulted in the isolation and identification of heliotrine, europine and 7-angelylheliotrine. From H. ovalifolium three alkaloids were isolated: ...
Functional adaptations of fig trees (ficus carica, l.) In agroecosystems of the western mediterranean desert of Egypt.
(
Qatar University
, 1991 , Article)
The ecophysiological characteristics of fig (Fi'cus carica, L.) trees, growing with maximum activity during the hot and dry summer, were studied in relation to growth, carbon partitioning, nutrient balance and water use. ...
Effects Of Chemical Pesticides On The Gravid Females And Stadia Of The Woodlouse, Porcellio Scaber (Latreille) (Isopoda, Oniscidea)
(
Qatar University
, 1991 , Article)
Studies were made on the mortality rates of the gravid females, and on the survival and growth rates of the stadia of the woodlouse Porcellio scaber (Latreille) exposed for a period of 21 days to sub-lethal concentrations ...
Prediction Intervals For Future Sample Mean From Inverse Gaussian Distribution
(
Qatar University
, 1991 , Article)
A random sample Xi, Xz, ..., Xn from Inverse Gaussian distribution I(/x,X) is observed. On the basis of this observed sample a lOOp prediction interval of the mean Y of a future sample Yi, ..., Ym from I(^,^.) has been ...
Mechanism Of The Inhibition Afforded By Some Hydrazone Oxime Derivatives Towards Aluminium In 2m Naoh Solution
(
Qatar University
, 1991 , Article)
The effect of some hydrazone oxime derivatives on the corrosion of aluminium in 2M NaOH solution was studied by polarization and weight-loss techniques. Polarization data indicated that all inhibitors tested were of a mixed ...