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Now showing items 1281-1290 of 1470
On estimates of the rate of convergence In the global limit theorems for Homogeneous markov chains
(
Qatar University
, 1997 , Article)
In this paper some estimates are obtained for the remainder term in the limit theorems for the weighted sum of random variables forming a homogeneous Markov chain with arbitrary set of possible states . The achieved results ...
Petrographic And Chemical Microheterogeneity In Dolomite, Bahariya Oasis, Egypt
(
Qatar University
, 1994 , Article)
Dolomite samples from the lower member of the El-Hafhuf Formation (Turonian-Santonian) possess noticeable petrographic and chemical heterogeneity among their fabric components. Petrographically, the study samples can be ...
Pan African magmatism in the Zabara District, Central Eastern Desert, Egypt: Geochemistry and Petrogenesis
(
Qatar University
, 1997 , Article)
The rocks of the Zabara district include ophiolitic and non-ophiolitic sequences. The ophiolitic ones are metagabbro and metabasalt associated with metasediments, whereas the non -ophiolitic sequence includes intermediate ...
chelating behaviour of 1,1,3,3-propanetetrasalisoyl tetracarbohydrazone
(
Qatar University
, 1994 , Article)
The reaction of 1,1,3,3-propanetetrasalisoyltetracarbohydrazone (HgPTSTCH) with some metal ions in ethanol-aqueous medium has been studied. The isolated complexes were formulated as [Cu4(PTSTCH)8H2O] 4H2O, [Co4(PTSTCH) ...
On The Prawn Fisheries in the Gulf of Suez, Egypt
(
Qatar University
, 1993 , Article)
Prawn fisheries in the Gulf of Suez constitute about 13.7% of the total fish and shrimp landings. About 11% are made up by three penaeid species namely: Penaeus japonicus Bate, Penaeus semisulcatus De Han and Penaeus ...
Dominance Value And Community Production Of Desert Arthropoda In Qatar
(
Qatar University
, 1999 , Article)
Diurnal sampling of epigeal Arthropoda from different desert habitats in Qatar was carried out at the end of the summer season (October) and in spring (April) of 1995, 1996 and 1997. Dominance values of the species collected ...
Production Of Extracellular Enzymes By Some Soil Yeasts
(
Qatar University
, 1997 , Article)
This study investigated the ability of soil yeasts, Geotrichum candidum, Geotrichum capitatum and Williopsis californica to produce extracellular enzymes (amylase, cellulase and protease) in vitro compared with that of a ...
Application of discriminant score /∆ log r method for prediction of Organic richness at negelah well, coastal Mediterranean zone, western desert Egypt
(
Qatar University
, 1995 , Article)
Both sonic, resistivity and temperature information are used in an integrated manner in order to identify the organic richness of the shally intervals allover the Albian - Aptian rock sequence in Negelah well located at ...
Earth Resistivity And Self-Potential Study On The Area East Of Sohag City And Their Groundwater Implications
(
Qatar University
, 1993 , Article)
Nineteen field vertical electrical soundings have been made in the area east of Sohag to provide hydrogeologic information for groundwater exploration. These sounding are interpreted using programs for the automatic ...
Early Cretaceous Dinoflagellate Cysts And Miospores From The Mersa Matruh 1 Borehole, North West Desert, Egypt
(
Qatar University
, 1994 , Article)
This study aims to document the Neocomian to Aptian palynological assemblages recorded in the Mersa Matruh borehole, north West Desert, Egypt. These palynological assemblages, consisting mainly of dinocysts, miospores and ...