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Relationship between gravitational flap structures in the backlimb of anticlinal breakthrough Fault-Propagation Folds:case study of the Southern-Central Tunisian Atlas

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Journal of Mountain Science 2023年第12期20卷 3525-3541页

作者： Soulef AMAMRIA Hassen bensalem Hassan TAIB Mohamed Sadok bensalem Riheb HADJI Younes HAMED Faculty of Sciences Gabès Erriadh City Gabès University of GabèsErriadh city 6072Tunisia Higher Institute of Water Sciences and Techniques of Gabès University of GabèsErriadh city 6072Tunisia Faculty of Earth Sciences and Architecture Larbi Ben M’hidi UniversityOum El Bouaghi 4000Algeria Institute of Architecture and Earth Sciences Setif 1UniversitySetif city 19000Algeria Faculty of Sciences of Gafsa University of GafsaSidi Ahmed zarroug 2100Tunisia

The development of orogenic belts structures in the Southern-Central Tunisian Atlas is influenced by the evolution of tectonic activities during different phases,which are also closely linked to the formation of gravitational collapse *** typical example is that of the northern flank of the Jebel Orbata particularly the Ben Zannouch *** is an asymmetrical anticline interpreted by the model of“Fault Propagation Folds”.The development of the Ben Zannouch structures is resulted from landslides,scree falls and inverted layers plunging to the *** direction of resulted gravitational structure is parallel to the main thrust direction of the Bou Omrane *** thrust activity of Bou Omrane fault is associated to the important paleo-slope facing south and plastic lithology(incompetent marl layers)of outcropped series,facilitates the development of the Ben Zannouch Flap *** definition of gravitational collapse structures for the first time in Tunisia particularly in the northern flank of the Jebel Orbata is controlled by many principal structural conditions:fragmentation of the landslide surfaces,rheology and *** regional factors can be distinguished in the Southern-Central Tunisian Atlas as the seismic activity of the pre-existing Gafsa fault reactivated during compressive phases and the weather conditions during the postglacial period.

关键词： Southern-Central Tunisian Atlas Gravitational collapses structures Paleo-slope Gafsa fault

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Theoretical Investigations of the Physical Properties of Cd1-xCaxO Ternary Alloys

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Chinese Physics Letters 2014年第4期31卷 105-109页

作者： S. Labidi A. Lakel M. Labidi R. bensalem Departrrlent of Physics Faculty of Sciences Badji Mokhtar University P. O. Box 12 23000 Annaba Algeria

The structural, electronic and thermodynamic properties of Cd1-x CaxO ternary alloys are calculated using the first principles calculations performed within the framework of density functional theory. The exchange correlation potential for structural properties is calculated by the standard generalized gradient approximation （GGA） of Perdew et al., while for the electronic properties, the modified Becke-Johnson （MB3） scheme is also applied. A deviation of the lattice constants from Vegard＇s law and bulk modulus from linear concentration dependence （LCD） are observed for the alloys. In addition, the thermodynamic stability of the alloys is investigated by calculating the critical temperatures of alloys.

关键词： MATTER -- Properties TERNARY alloys DENSITY functional theory PHOTODIODES SEMICONDUCTORS

An Implementation Method for the Geodesics with Constraints on Heisenberg Manifolds

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Applied Mathematics 2012年第10期3卷 1496-1504页

作者： Yasmina Khellaf Naceurdine bensalem Department of Mathematics Institute of Sciences Setif Algeria

In this paper we address the implementation issue of the geodesics method with constraints on Heisenberg manifolds. First we present more details on the method in order to facilitate its implementation and second we consider Mathema-tica as a software tool for the simulation. This implementation is of great importance since it allows easy and direct determination of Ricci tensor, which plays a fundamental role in the Heisenberg manifold metric.

关键词： Christoffel Metric Heisenberg Geodesic Levi-Civita

The Controlling of Deformation Basing on Strain Partitioning Model: Case Study to Gafsa Basin (Southern Tunisian Atlas)

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Journal of Geoscience and Environment Protection 2015年第1期3卷 22-30页

作者： Soulef Amamria Mohamed Sadok bensalem Mohamed Ghanmi Fouad Zargouni University of Sciences of Tunisia University of Tunis El Manar Tunis Tunisia Faculty of Sciences of Gabes University of Gabes Erriadh City Tunisia

One of the principal parameters to study the tectonics deformation is the relation between the shortening axis and the direction of preexistent principal fault. It is important to verify this parameter in the belts structures. The aim of this contribution is to check this notion in the Atlassic structures, especially in the southern limit of Tunisian Atlas: Gafsa fault. The strain partitioning model proposed in the interpretation of geodynamics of Gafsa chains suggests the coexistence of thrusting and strike-slip faults during the same tectonics phase. The application of this model requires a particular geometry between the shortening axis and the direction of fault, and indeed the obliquity of preexistent faults by the reported shortening axis interprets us a transpressive context. The slickenside examination shows the coexistence of thrusting and strike-slip faults. The application of model of strain partitioning requires a decollement level which is confirmed in the Gafsa basin by the upper level of Triassic series. These parameters confirm a particular relation thin and thick-skinned and the maximum of deformation is cover, although the basement structures permeate simple passive transport of the deformation along the Triassic decollement level. These problems confirm the assumption of the evolution of the shortening axis during geological events and especially the rotation of Africa and Eurasia.

关键词： Strain Partitioning Gafsa Chains Triassic Decollement Level Thin and Tick Skinned

Strain Partitioning Controlled by Oblique Ramp in Intracratonic Chains in Tunisia: Example of Gafsa Basin

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International Journal of Geosciences 2013年第2期4卷 408-416页

作者： Soulef Amamria Mohamed Sadok bensalem Eric Mercier Mohamed Ghanmi Fouad Zargouni Department of Sciences and Technique University of Nantes Nantes France Faculty of Sciences of Gabes University of Gabes Erriadh City Tunisia University of Sciences of Tunis University of Tunis El Manar Tunis Tunisia

The aim of this contribution is the interpretation of intracratonic chains in African plates, but it is important to verify some parameters such us the oblique convergence between Africaand Europa plates. Particularly In southern central of atlassic Tunisian belts, the slickenside examination of directional preexisting faults of N120 direction shows the coexistence of thrusting and strike-slip faults striation. In the limits of these faults principally in some tectonics lens we distinguish abnormal contacts with Triassic facies. The kinematic evolution of Gafsa basin resumed in the geometry of strike-slip faults connected in the thrusting system, this movement resulted from the oblique convergence on Ben Younes, Bou Ramli and Attig chains during compressive phases. This deformation style requires a shortening axis oblique to the NW-SE accidents (N120). The strain partitioning model verify the geometry of faults and equivalent evolution of folds and confirms the Triassic decollement level but without integrated of basement structures in the deformation. It permeated a passive transport of deformation observed in cover structure.

关键词： Intracratonic Chains Strain Partitioning Convergence Oblique Shortening

Thermal and Structural Characterization of Transparent Rare-Earth Doped Lead Fluoride Glass-Ceramics

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New Journal of Glass and Ceramics 2012年第2期2卷 65-74页

作者： Chaouki bensalem Michel Mortier Daniel Vivien Patrick Gredin Gilles Patriarche Madjid Diaf Département de Physique Université d’Annaba Annaba Algérie Laboratoire de Chimie de la Matière Condensée de Paris UPMC Chimie ParisTech Paris France Laboratoire de Photonique et Nanostructures Marcoussis France

The devitrification of glasses with composition 50GeO2-40PbO-10PbF2-xREF3, RE = Gd, Eu, 0 3+: β-PbF2 nanocrystals embedded in a glassy oxide matrix. This transformation is investigated using thermal analysis, X-ray diffraction and electron microscopy. A comparison with RE3+: β-PbF2 ceramics prepared by standard ceramic techniques is performed. The Rare Earth cations show a strong nucleating effect for the precipitation of the RE3++: β-PbF2 nanocrystals. The evolution of the unit cell parameters of the REF3: β-PbF2 solid solution results from a combined effect of Pb2+-RE3+ substitution and interstitial F– introduction. In the glass ceramics, RE3+: β-PbF2 nanocrystals are constrained by the glassy matrix when they form with a pressure equivalent to 1.6 GPa. The constrained nanocrystals can return to a relaxed state by chemical dissolution of the embedding glassy matrix, followed by thermal treatments.

关键词： Glass-Ceramic Rare-Earth Thermal Analysis Devitrification Nanocrystallite X-Ray Diffraction

Effectiveness of plant growth-promoting rhizobacterium Pantoea sp. BRM17 in enhancing canola growth on phosphogypsum-amended soil

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Pedosphere 2020年第4期30卷 570-576页

作者： Houda TRIFI Issam bensalem Naima KOLSI BENZINA Amine FOURATI Maria Clara COSTA Wafa ACHOUAK Haitham SGHAIER Mouldi SAIDI Laboratory of Biotechnology and Nuclear Technology(LR16CNSTN01) National Center for Nuclear Sciences and Technology(CNSTN)Sidi Thabet Technopark 2020(Tunisia) Faculty of Sciences of Bizerte Carthage UniversityJarzouna 7021(Tunisia) Soil Sciences and Environment Laboratory National Institute of Agronomy of TunisiaTunis Mahrajene 1082(Tunisia) Tunisian Chemical Group Route de Gabes Km 3.5Sfax 3018(Tunisia) Centro de Ciencias do Mar Universidade do AlgarveCampus de GambelasFaro 8005-139(Portugal) Laboratory of Microbial Ecology of the Rhizosphere and Extreme Environment CEA CadaracheSaint Paul Lez Durance 13108(France) Laboratory of Energy and Matter for Development of Nuclear Sciences(LRJ6CNSTN02) National Center for Nuclear Sciences and Technology(CNSTN)Sidi Thabet Technopark 2020(Tunisia) Laboratory of Biotechnology and Bio-Georesources Valorization(LR1IES31) National Center for Nuclear Sciences and Technology(CNSTN)Sidi Thabet Technopark 2020(Tunisia)

Dear Editor,Phosphogypsum(PG)is the main by-product generated during phosphoric acid production from mineral *** contains mainly calcium sulfate dehydrate(CaSO4:2H2O),phosphate,fuoride,heavy metals,and radionuclides(Elloumi et al.,2015).Around 170×10^6 t PG is produced annually worldwide,although PG management is an environ-mental concern in several countries.

关键词： annually soil metals

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北非阿尔及利亚、摩洛哥、突尼斯水土保持实践经验

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水土保持科技情报 1985年第1期 44-49页

作者： B.bensalem 杨鸿义

本文阐述阿尔及利亚、摩洛哥、突尼斯三国主要的侵蚀问题以及根据这些国家实情而研究的意见,探讨如何解决侵蚀的途径.讨论的内容包括:水蚀及控制水蚀的和生物工程措施、利用防护林带的形式、稳定沙丘技术、沙荒扩大化的危害可能采取的... 详细信息

本文阐述阿尔及利亚、摩洛哥、突尼斯三国主要的侵蚀问题以及根据这些国家实情而研究的意见,探讨如何解决侵蚀的途径.讨论的内容包括:水蚀及控制水蚀的和生物工程措施、利用防护林带的形式、稳定沙丘技术、沙荒扩大化的危害可能采取的措施和综合地对全流域自然资源进行良好经营管理.

关键词：北非非洲等高耕作耕作方法

Cardiac Decompensation after Dilatation of an Arteriovenous Fistula Stenosis: A Case Report

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Open Journal of Nephrology 2022年第4期12卷 369-374页

作者： Modou Ndongo Sid Ali Toufik Benyaghla Fabrice Tiako Mamadou Mouctar Diallo Misylias Bouaoud Houyem Attia Fatiha Lahouel Djillali Ziane Berroudja Nestor Nankeu Tayeb bensalem Catherine Albert Department of Nephrology Dialysis and Kidney Transplantation of Aristide Le Dantec hospital Dakar Senegal Department of Nephrology Dialysis of Louis Pasteur Hospital Chartres France

The arteriovenous fistula (AVF) has been considered for several decades as the preferred approach for hemodialysis because of its longevity and its lower morbidity and mortality rate. However, it can be the cause of several infectious and especially cardiovascular complications. Stenosis is the most common complication of AVF. It is favored by several hemodynamic, cellular and mechanical factors. Reduced dialysis performance and thrombosis are the main risks associated with stenosis. Intervention for dilation is indicated in the presence of any pre-thrombotic stenosis or stenosis that alters the quality of dialysis. However, in patients with heart disease, an assessment of the risk of decompensation is mandatory before considering any gesture of dilation of a fistula. We report a case of acute cardiac decompensation in an 85-year-old patient with severe but stable dilated cardiomyopathy after dilatation of an AVF stenosis. This observation shows that particular attention should be given to elderly subjects with AVF stenosis, especially in the presence of underlying heart disease where closure of the AVF with placement of a tunneled catheter is an alternative that should always be discussed.

关键词： Arteriovenous Fistula Stenosis Hyperflow Hemodialysis Cardiotoxic