http://dspace.zu.edu.ly/xmlui/handle/1/593 2026-04-08T21:44:28Z 2026-04-08T21:44:28Z A. Sulaiman, Samira http://dspace.zu.edu.ly/xmlui/handle/1/602 2020-11-22T20:19:44Z 2020-06-15T00:00:00Z

On the Bernstein inequality A. Sulaiman, Samira Chemin[1], proved the inequality of Bernstein for any tempered distribution u. In this paper, we will extend its proof for a bloc dyadic ∆ ̇_q u and S_q u. We will use the Fourier transform and apply the Yong inequality for convolution. In addition, we will use the techniques of analysis in frequency space

2020-06-15T00:00:00Z Ali Alrabib, Mohamed A. Alfandi, Emhemed K. Elyaagubi, Fathi A. Abuharbah, Almagtof I. Fandi, Emad http://dspace.zu.edu.ly/xmlui/handle/1/601 2020-11-22T20:24:35Z 2020-06-15T00:00:00Z

A review of Carboniferous, Permian and Middle Triassic paleoenvironmental linked with Thermal maturities interpretation of A1-9 well, Concession 9, NW Libya Ali Alrabib, Mohamed; A. Alfandi, Emhemed; K. Elyaagubi, Fathi; A. Abuharbah, Almagtof; I. Fandi, Emad The present work deals with the paleoenvironmental and hydrocarbon potential of the lithostratigraphic succession in Carboniferous, Permian and Middle Triassic sediments in the north west Libya. Data presented in this paper are based upon a detailed subsurface lithological characteristics from ditch cutting samples and involving electric logs (gamma-ray) linked with palynofacies interpretation. The sedimentary section of this area ranges in age from Upper Paleozoic rock to Triassic. Early Paleozoic rocks have not been found in the studied well (A1-9), these rocks were eroding during the Late Carboniferous and Early Permian time. During Latest Permian and earliest Triassic time evidence for major marine transgression has occurred. From depths 5930-5940 feet, to 10800-10810 feet, the TAI of the Al Guidr, the Bir Al Jaja Al Uotia, Hebilia and the top varies between 3+ to 4- (mature-dry gas). This interval corporate the rest part of the Dembaba Formation. From depth 10800- 10810 feet, until total sediment depth (11944 feet Log) which corporate the rest of the Dembaba and underlying equivalents of the Assedjefar and M΄rar Formations and the underlying indeterminate unit (Hasaouna Formation), the TAI varies between 4 and 5 (dry gas-black & deformed). The environment of deposition and the degree of thermal maturation has allowed the A1-9 well to become a key reference section in NW Libya from which correlations can be carried out.

2020-06-15T00:00:00Z F. Ehtaiwesh, Amal H. Rashed, Fatma http://dspace.zu.edu.ly/xmlui/handle/1/600 2020-11-22T20:27:00Z 2020-06-15T00:00:00Z

Growth and Yield Responses of Libyan Hard Wheat (Triticum durum Desf ) Genotypes to Salinity Stress F. Ehtaiwesh, Amal; H. Rashed, Fatma A pots experiment was conducted to evaluate salinity tolerance during vegetative and flowering stages for nine hard wheat genotypes (Triticum durum Desf ) in four treatments of salinity including (0 (control), 50, 100, and 150mM NaCl) with 4 replicated RCD. Results indicated that salinity stress caused a marked decrease in growth and yield-related parameters of wheat genotypes. However, few genotypes were superior to other genotypes in maintaining good growth under salinity stress. The study pointed out that plant height, tiller number, spike number plant-1, dry weight plant-1, grain yield plant-1 and harvest index per plant were substantially reduced due to salinity stress. During vegetative and flowering growth stages, the application of NaCl salinity significantly affected the tiller and spike number of wheat genotypes, mainly at 100 and 150 mMNaCl but there was no significantly difference at the low salinity treatments. Spike number plant-1 was more affected by salinity as compared to tiller number at all salinity levels. Grain yield showed considerable decrease with increasing salinity up to 150 mMNaCl. This reduction was more in Alkrm genotype as compared to Aboshock and Homera genotypes. Harvest index was significantly reduced by salinity stress. Nevertheless, the reduction was more pronounced in Alkrm than Aboshock. Among the 9 genotypes, (Aboshock, Jliledeep and Breka) were the most tolerant genotypes and (Alkrm and Mergawe) were the most sensitive genotypes. The study concludes that the effect of salinity on growth traits varied according to the salt tolerance of the genotypes. Yet, more experimental studies are still needed to obtain reliable data under filed condition for different growth stages.

2020-06-15T00:00:00Z A.Kushlaf, A. E. Beneesa, M. http://dspace.zu.edu.ly/xmlui/handle/1/599 2020-11-22T20:29:42Z 2020-06-15T00:00:00Z

Reservoir Quality Analysis of Hawaz Reservoir, (A) Oil field, Murzuq Basin, Libya A.Kushlaf, A.; E. Beneesa, M. Murzuqbasin represent one of the most important basins in libya. It has many oil fields; (A) field is one of the new discoveries in NC186 concession in Murzuqbasin. The present paper deals with evaluation of petro-physical parameters of Hawaz Formation in (A) oil field, Murzuq basin through the analysis of well-log data available for two exploratory wells, distributed in (A) oil field. A comprehensive formation evaluation has been applied through numbers of cross-plots and using their output parameters as input data for interactive petro-physics software (IP) in order to evaluate the lithological constituents and fluid saturations. The litho-saturation cross-plot indicated that the Hawaz Formation consists of sandstones with few shale. These sandstones are generally fine to very fine grains but occasionally coarse to very coarse grained. Generally coursing upward sequence is indicated. The litho-saturation cross-plots also illustrated that horizon H4, H5 and H6 are the main reservoirs in Hawaz formation

2020-06-15T00:00:00Z