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Using GIS and Geostatistical Techniques for Mapping Piezometry and Groundwater Quality of the Albian Aquifer of the M’zab Region, Algerian Sahara

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International Journal of Geosciences 2021年第3期12卷 253-279页

作者： Mansour Achour Moulay Idriss Hassani hadjira benhedid Abla Hadj Brahim Laboratoire Géoresources Environnement & Risques Naturels (Géoren) University of Oran 2 MB Oran Algeria Laboratoire de protection des écosystèmes dans les zones arides et semi-arides University of Ouargla Ouargla Algeria

The M’zab region is subject to an arid Saharan climate where surface and sub-surface waters are of little importance. The Albian Aquifer, commonly called Continental Intercalary (CI), main component of North Western Sahara Aquifer System (NWSAS/SASS), constitutes the most extensive aquifer formation of the region. In our study area, the CI is identified, as a regional subset, as the Albian Aquifer of M’zab Region (AAMR). Its groundwater resources are considered the only source available to meet the growing needs of drinking water supply, agriculture and industry. This aquifer is heavily exploited by a very large number of wells (more than 750). Its supply is very low, so it is a very low renewable layer. This requires periodic monitoring and control of its piezometric level and its physico- chemical quality. The objective of our study is to know the current state of this aquifer, while studying the variation of its piezometry for the period 2010

关键词： M’zab Albian NWSAS AAMR Groundwater Geostatistical

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Carbamazepine solubility enhancement in tandem with swellable polymer osmotic pump tablet: A promising approach for extended delivery of poorly water-soluble drugs

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Asian Journal of Pharmaceutical Sciences 2014年第3期9卷 146-154页

作者： hadjira Rabti Jumah Masoud Mohammed Salmani Eltayeb Sulimen Elamin Narimane Lammari Jie Zhang Qineng Ping Department of Pharmaceutics School of PharmacyChina Pharmaceutical University24 TongjiaxiangNanjing 210009China Department of Pharmaceutics College of PharmacyAl-Mustansiriya UniversityAl-Qadisiya DistrictBaghdadIraq Department of Pharmaceutics Faculty of PharmacyOmdurman Islamic UniversityKhartoum 00249Sudan

Elementary osmotic pump(EOP)is a unique extended release(ER)drug delivery system based on the principle of *** has the ability to minimize the amount of the drug,accumulation and fluctuation in drug level during chronic ***(CBZ),a poorly water-soluble antiepileptic drug,has serious side effects on overdoses and chronic *** aim of the present study was to design a new EOP tablet of CBZ containing a solubility enhancers and swellable polymer to reduce its side effects and enhance the patient ***,a combination of solubilizing carriers was selected to improve the dissolution of the slightly soluble ***,designing the new EOP tablet and investigating the effect of different variables of core and coat formulations on drug release behavior by single parameter optimization and by Taguchi orthogonal design with analysis of variance(ANOVA),*** results showed that CBZ solubility was successfully enhanced by a minimum amount of combined polyvinyl pyrrolidone(PVP K30)and sodium lauryl sulfate(SLS).The plasticizer amount and molecular weight(MW)together with the osmotic agent amount directly affect the release rate whereas the swellable polymer amount and viscosity together with the semi-permeable membrane(SPM)thickness inversely influence the release *** addition,the tendency of following zero order kinetics was mainly affected by the coat components rather than those of the ***,orifice size does not have any significant effect on the release behavior within the range of 0.1 mm to 0.8 *** this study we report the successful formulation of CBZ-EOP tablets,which were similar to the marketed product Tegretol CR 200 and able to satisfy the USP criterion limits and to deliver about 80%of CBZ at a rate of approximately zero order for up to 12 h.

关键词： Elementary osmotic pump Carbamazepine Solubility enhancement Taguchi orthogonal design Zero order

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广西来宾二叠系栖霞组黏土矿物和地球化学特征初步研究及地质意义

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地质科技情报 2011年第1期30卷 15-19页

作者： Bouchikhi hadjira 王夏马仲武伍明颜佳新中国地质大学生物地质与环境地质教育部重点实验室武汉430074 Department of Earth Sciences University Abou Bekr Belkaid Tlemcenalgeria13000 中南民族大学化学与材料学院武汉430074

研究了广西来宾铁桥剖面栖霞组的黏土矿物组合和地球化学特征的纵向变化特征。黏土矿物分析结果表明,栖霞组上部和下部地层中,黏土矿物含量较高,以伊利石、绿泥石为主,含少量的高岭石和蒙脱石;中部地层中黏土矿物含量较少。在电子显微镜... 详细信息

研究了广西来宾铁桥剖面栖霞组的黏土矿物组合和地球化学特征的纵向变化特征。黏土矿物分析结果表明,栖霞组上部和下部地层中,黏土矿物含量较高,以伊利石、绿泥石为主,含少量的高岭石和蒙脱石;中部地层中黏土矿物含量较少。在电子显微镜下,有些黏土矿物,如伊利石,发育在草莓状黄铁矿晶体之间,形成于早期成岩作用阶段。整体上黏土矿物成因与陆源碎屑物质输入有关。配套的地球化学分析表明,Al、Fe和Ti质量分数等反映陆源物质的指标,在栖霞组下部和上部质量分数较高,中部明显较低。上述黏土矿物分析和地球化学测试结果意味着该地区二叠纪栖霞期呈现一个明显的陆源碎屑物质输入旋回变化,早期和晚期陆源物质供应较明显,而中期较贫乏,可为该区进一步古地理研究提供重要参考。

关键词：栖霞组黏土矿物铁桥剖面陆源碎屑

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