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Piezometry of the Aquifer of the Continental Terminal in the Borehole Fields of Godomey and ouedo for the Delimitation of the Protection Areas around Boreholes of ouedo

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open Journal of Geology 2017年第12期7卷 1786-1800页

作者： Crépin Zevounou Abdoukarim Alassane christophe.Kaki Taofic Bacharou Joanèle Koudemekpo Civil Engineering (GC) Polytechnic School of Abomey-Calavi (EPAC/UAC) Abomey-Calavi Republic of Benin Department of Earth Sciences Faculty of Sciences and Technics (FAST/UAC) Abomey-Calavi Republic of Benin

Groundwater is naturally protected against pollution through its filter layer which is the soil. However, the development of human activities, including the use of chemicals, gradually reduces the purifying action of this layer. It is therefore essential to develop strategies for a better management of this precious resource. The general objective of this work is to establish the piezometry of the aquifer of the Continental Terminal in the borehole fields of Godomey and ouedo to improve the delineation of protection perimeters around the boreholes of ouedo. The study was conducted using three methods that were the FCR method, the infiltration method and the method of Krijgsman and Lobo-Ferreira. The exploitation of the piezometric map enabled to obtain the hydraulic gradient of 0.165%. The radii of immediate protection’s perimeters (PPI) range from 55.653 m to 99.755 m. The retained close protection’ perimeters (PPR) and remote protection’s perimeters (PPE) have an ellipsoidal shape. Their upstream radii range from 220.72 m to 390 m for PPR and from 356.52 m to 659.52 m for PPE;the downstream radii range from 213.06 m to 387.25 m for PPR, and from 321.28 m to 603.97 m for PPE;the radii perpendicular to the flow direction to the right of each borehole vary from 212.58 m to 381.16 m for PPR, and from 336.11 m to 602.67 m for PPE. Probable risks identified for groundwater contamination in these protection areas are the discharge of domestic waste water, solid wastes and the use of chemical fertilizers and pesticides in farming practices.

关键词： Groundwater Anthropogenic Activities Protection Perimeter Piezometry

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Neuronal photoactivation through secondharmonic near-infrared absorption by gold nanoparticles

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Light(Science & Applications) 2018年第1期7卷 79-91页

作者： Wieteke D.A.m.de Boer Jan J.Hirtz Antonio Capretti Tom Gregorkiewicz mercè Izquierdo-Serra Shuting Han christophe.Dupre Yuriy Shymkiv Rafael Yuste NeuroTechnology Center Department of Biological SciencesColumbia UniversityNew YorkNY 10027USA Van der Waals–Zeeman Institute University of Amsterdam1098 XH AmsterdamNetherlands Present address:Laboratori de Fisiologia molecular Departament de Ciències Experimentals i de la SalutUniversitat Pompeu FabraBarcelonaSpain

optical activation of neurons requires genetic manipulation or the use of chemical photoactivators with undesirable side *** a solution to these disadvantages,here,we demonstrate optically evoked neuronal activity in mouse cortical neurons in acute slices and in vivo by nonlinear excitation of gold *** addition,we use this approach to stimulate individual epitheliomuscular cells and evoke body contractions in Hydra *** achieve this,we use a low-power pulsed near-infrared excitation at the double-wavelength of the plasmon resonance of gold nanoparticles,which enables optical sectioning and allows for high spatial precision and large penetration *** effect is explained by second-harmonic mie scattering,demonstrating light absorption by a second-order nonlinear process,which enables photothermal stimulation of the *** approach also minimizes photodamage,demonstrating a major advancement towards precise and harmless photoactivation for neuroscience and human therapeutics.

关键词： activation harmonic absorption

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Repair of Complex Post-Traumatic Facial Dislocations: Indications, Therapeutic Difficulties and Results at Treichville University Hospital, Abidjan, Cote d’Ivoire

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open Journal of Stomatology 2022年第11期12卷 337-345页

作者： A. m. R. E. Anzouan-Kacou christophe.Konan Allah Romaric Evrard Assi Yapo Eric Kouassi Zegbeh N’guessan Kouadio Emmanuel Konan Department of maxillofacial Surgery and Stomatology Treichville University Hospital Abidjan Cote d’Ivoire Department of Reconstructive and Aesthetic Plastic Surgery Hand Surgery and Burns Treichville University Hospital Abidjan Cote d’Ivoire Department of Stomatology and maxillo-Facial Surgery University of Bouaké Health Centre Bouaké Cote d’Ivoire

Introduction: Complex post-traumatic facial disfigurements are caused by civilian or ballistic trauma. Their repercussions are functional, aesthetic and psychological. The initial emergency or secondary management of facial damage is difficult. The objective is to report, through the clinical observation of three patients, the results of the management of complex facial dislocations in a context of limited technical resources. Patients and methods: Three complex post-traumatic facial dislocations were managed between may 2006 and June 2017. Results: Primary treatment and secondary repair were established on a case-by-case basis. Local autoplasty was the indication of choice. multidisciplinary management resulted in satisfactory functional and cosmetic outcomes. Two of the patients were lost to follow-up before the end of treatment. Discussion: The complete management of facial dislocations remains difficult and complex, in an extreme exercise situation. In an emergency, the priority is to save the life of the injured person. Several factors are involved in the therapeutic decision: the choice of the maxillofacial reconstruction technique, the availability of the technical platform, the financial capacity and the psychological state of the patient and his entourage. Sequential and multidisciplinary treatment gives satisfactory results in terms of morphology, function and aesthetics, despite the limited technical resources available. Psychological support is an essential complement for successful socio-professional and family reintegration.

关键词： Dislocation Face Complex Difficulties Treatment

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magnetization study of ITER-type internal-Sn Nb3Sn superconducting wire

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Chinese Physics B 2007年第6期16卷 1764-1769页

作者：张超武周廉 Andre Sulpice Jean-Louis Soubeyroux christophe.Verwaerde GiaKy Hoang 张平祥卢亚峰唐先德 Shaanxi University of Science and Technology Xi'an 710021 China Northwest Institute for Nonferrous metal Research Xi'an 710016 China CNRS/CRETA BP 166 38042 Grenoble France ALSTom 3 bis avenue des 3 Chenes 90018 Belfort France

Through magnetization measurement with a SQUID magnetometer the heat treatment optimization of an international thermonuclear experimental reactor （ITER）-type internal-Sn Nb3Sn superconducting wire has been investigated. The irreversibility temperature T^＊（H）, which is mainly dependent on A15 phase composition, was obtained by a warming and cooling cycle at a fixed field. The hysteresis width △m（H） which reflects the flux pinning situation of the A15 phase is determined by the sweeping of magnetic field at a constant temperature. The results obtained from differently heat-treated samples show that the combination of T^＊（H） with Am（H） measurement is very effective for optimizing the heat reaction process. The heat treatment condition of the ITER-type wire is optimized at 675℃/128 h, which results in a composition closer to stoichiometric Nb3Sn and a state with best flux pinning.

关键词： Nb3Sn superconducting wire internal-Sn process irreversibility temperature,hysteresis width

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S-DAPYs类似物的分子设计、合成及抑制HIV-1的活性研究

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中国科学：化学 2015年第9期45卷 961-967页

作者：万正勇陈芬儿 Erik De Clercq Dirk Daelemans christophe.Pannecouque 复旦大学化学系上海200433 复旦大学生物医学研究院上海200433 Rega Institute for medical Research Katholieke Universiteit Leuven

我们以已上市的etravirine和正在临床研究的VRX-480773两个逆转录酶抑制剂为模板，通过杂交这两个化合物的药效团，获得含酰胺片段的S—DAPYs类似物，该类似物对野生型HIV-1病毒株具有中等强度抑制活性．而maurizio所发现的另一类无酰... 详细信息

我们以已上市的etravirine和正在临床研究的VRX-480773两个逆转录酶抑制剂为模板，通过杂交这两个化合物的药效团，获得含酰胺片段的S—DAPYs类似物，该类似物对野生型HIV-1病毒株具有中等强度抑制活性．而maurizio所发现的另一类无酰胺片段的***类似物却表现出优异的抑制活性．为了考察酰胺片段对S-DAPYs类似物抑制HIV-1活性的影响，本文合成了一系列无酰胺片段的S—DAPYs类似物．生物活性结果表明，3个化合物（6g、6m和6s）对野生型HIV-1具有中等强度抑制活性（EC50在6．5～15．4μmol／L范围内），弱于相应的具有酰胺片段的类似物．此外，分子模拟还揭示了酰胺片段可与K103形成至关重要的氢键作用，这为新型非核苷类逆转录酶抑制剂的设计奠定了理论基础．

关键词：艾滋病逆转录酶抑制剂分子杂交酰胺片段氢键分子模拟

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桉木浆漂白的全面升级

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中华纸业 2013年第18期34卷 70-73页

作者： Alexis métais Jean-christophe.Hostachy Brendan Van Wyk

论述了一种应用臭氧的新方法:热酸处理漂段A放在臭氧漂段Z之前。已有充分的证据证明,从化学药剂成本的角度达到效率最大化,可通过A-Z结合工艺方法明智地用酸抽提己烯糖醛酸(HexA),辅以更具针对性的臭氧脱木素来实现。

关键词： ECF漂白臭氧热酸处理己烯糖醛酸桉木浆

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Physico-Chemical Characteristics of Gushing Water Aquifers in the Coastal Sedimentary Basin of Benin (West Africa)

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Journal of Geoscience and Environment Protection 2021年第7期9卷 149-163页

作者： Prudence mahutondji Dossou Crépin Zevounou Abdoukarim Alassane christophe.Kaki moussa Boukari Daouda mama Chaire Internationale en Physique Mathématique et Applications (CIPMA-Chaire UNESCO) Université d’Abomey-Calavi Abomey-Calavi Bénin Laboratoire de Géologie Mines et Environnement Faculté des Sciences et Techniques Université d’Abomey-Calavi Abomey-Calavi Bénin Laboratoire d’Hydrologie Appliquée (LHA) Institut National de l’Eau (INE) Université d’Abomey-Calavi Abomey-Calavi Bénin

The coastal sedimentary basin in southern Benin consists of monoclinal layers divided into two plateau zones (North and South) which are separated by a longitudinal depression ESE-WNW. The valleys of the main N-S-oriented rivers (ouémé, Couffo and mono) set the bondaries of the different plateau of the BSC (Coastal Sedimentary Basin). The present study, based on geology, hydrochemistry, temperature and log data available on boreholes, makes a physico-chemical characterization of the waters of the gushing aquifers of the coastal sedimentary basin of Benin. The gushing water boreholes are shared between the valleys of the main rivers of the BSC. Some of these boreholes are thermal with a water temperature between 38 and 69 degrees Celsius. The hydrogeological correlations established in the BSC in accordance to the North- South direction in the valleys of the main streams (Couffo and Ouémé) reveal that the captured aquifers are sands, marls and limestones that respond either in major discordance (northern zone) or above the sedimentation gapsont-family:Verdana;"> (southern zone). Chemical analyses have shown that gushing thermal waters are mineralized in the south with a neutral to basic pH and are highly concentrated with bicarbonate, calcium and magnesium ions. In the North, on the other hand, thermal waters are acidic with a pH ranging from 4.8 to 5.9. The acidic nature of the northern waters is influenced by the crystalline base while the southern neutral to basic waters are influenced by the lithological nature (limestone and marl) of the aquifer. The random distribution of thermal water boreholes in the valleys of the main BSC streams is believed to be related to

关键词： Gushing Aquifers Thermal Water Physico-Chemical BSC

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天然气水合物丘——大陆边缘流体运移聚集深海海底的证据

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海洋地质 2013年第3期29卷 50-56页

作者： christophe.Serie 郭依群(翻译) 不详广州海洋地质调查局矿产所

在全球有机碳循环中，位于地下浅表层的天然气水合物是最大的甲烷储存库之一。海底渗漏及其相关的特征是浅层岩石圈向水圈和大气圈释放甲烷的排放点。本文介绍了安哥拉近海宽扎盆地发现的与渗漏相关的海底丘状物，并根据高分辨率3D地震... 详细信息

在全球有机碳循环中，位于地下浅表层的天然气水合物是最大的甲烷储存库之一。海底渗漏及其相关的特征是浅层岩石圈向水圈和大气圈释放甲烷的排放点。本文介绍了安哥拉近海宽扎盆地发现的与渗漏相关的海底丘状物，并根据高分辨率3D地震资料阐明了地下垂向疏导系统和丘状物的成因。丘状物具有截然不同的形态学及地球物理特征，这表明浅表水合物形成与分解的不同阶段与沿着盐底辟两翼运移的热成因流体有关，这些热成因流体均来自于深埋的盐成因迷你盆地。这次发现的海底丘状物的规模比以前发现的水合物丘至少要大一个数量级，可以与陆地冰缘环境发现的液压丘相比，计算表明单个丘状物中水合物的体积高达1．1×10^6m^3，（相当于2．0×10^8m^3的甲烷气）。通过地震来解释这个典型的与渗漏相关的海底丘状物，为了解富集在近地表的天然气水合物藏的产状、发育及其与热成因流体的迁移、大陆边缘主要沉积物特征之间的关系带来了新的视角。

关键词：天然气水合物藏深海海底运移聚集大陆边缘流体 3D地震资料地球物理特征证据

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纳米FePt颗粒:mgo多层复合薄膜的外延生长、微观结构与磁性研究

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物理学报 2014年第16期63卷 299-305页

作者：吴建邦周民杰王雪敏王瑜英熊政伟程新路 marie-José Casanove christophe.Gatel 吴卫东中国工程物理研究院激光聚变研究中心绵阳621900 四川大学原子与分子物理研究所成都610064 法国国家科学研究院材料精细结构研究中心法国图卢兹31055

采用脉冲激光沉积法,在mgo(100)面上外延生长了FePt:mgo多层纳米复合薄膜,FePt成分为***纳米颗粒周期性嵌埋于单晶mgo外延层中.原位反射式高能电子衍射分析结果表明,mgo外延层呈层状生长,而FePt纳米颗粒呈岛状生长.在整个FePt:mgo纳米... 详细信息

采用脉冲激光沉积法,在mgo(100)面上外延生长了FePt:mgo多层纳米复合薄膜,FePt成分为***纳米颗粒周期性嵌埋于单晶mgo外延层中.原位反射式高能电子衍射分析结果表明,mgo外延层呈层状生长,而FePt纳米颗粒呈岛状生长.在整个FePt:mgo纳米复合薄膜的生长过程中,成功实现了层状-岛状生长模式的交替控制.高分辨透射电子显微镜分析结果表明,退火热处理后,结晶完整的L10-FePt纳米颗粒粒径约为5 nm,呈扁平六角形状,在mgo基底上形成逐层排列的纳米点阵.磁滞回线结果表明,退火后薄膜矫顽力增大,有序度提高,磁性增强.

关键词：脉冲激光沉积反射式高能电子衍射 L10-FePt 相变

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Implication of Ions and organic Solutes Accumulation in Amaranth (<i>Amaranthus cruentus</i>L.) Salinity Resistance

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American Journal of Plant Sciences 2019年第12期10卷 2335-2353页

作者： Agapit Wouyou Hermann Prodjinoto Ahissou Séraphin Zanklan Brigitte Vanpee Stanley Lutts christophe.Bernard Gandonou Unité de Recherche sur l’Adaptation des Plantes aux Stress Abiotiques les Métabolites Secondaires et l’Amélioration des Productions Végétales Laboratoire de Physiologie Végétale et d’Etude des Stress Environnementaux Faculté des Sciences et Techniques (FAST/UAC) Tri Postal Cotonou Bénin Groupe de Recherche en Physiologie végétale Earth and Life Institute ELI-A Université Catholique de Louvain Louvain-La-Neuve Belgique

Salinity is one of the major environmental constraints limiting agricultural productivity in the world. The effects of salt stress on growth, ions and organic solutes accumulation were investigated in two amaranth (Amaranthus cruentus) cultivars: Rouge (salt-resistant) and Locale (salt-sensitive). Young plants of these cultivars were exposed, in hydroponic system, to three concentrations of NaCl: 0, 30 and 90 mm. Growth parameters, ions, free proline and soluble sugars concentrations were determined after 2 weeks of stress. NaCl effect resulted in plant growth reduction in both cultivars but plants of cultivar Rouge were less affected compared to that of cv. Locale. Na+, proline and soluble sugars concentrations increased significantly in leaves and roots under salinity while K+, Ca2+ and mg2+ concentrations decreased in both cultivars. Proline and soluble sugars increased significantly in leaves and roots of cultivar Locale whereas in cultivar Rouge, proline increase was significant only in roots and soluble sugars increase was significant only in leaves. The highest increase of Na+ concentration occurred in leaves of cv. Rouge coupled with the lowest reduction in K+ concentration. The highest increase of proline occurred in leaves of cultivar Locale whereas the highest increase of soluble sugars was observed in leaves of cultivar Rouge. The reduction of the Ca2+ concentration under salt stress was more accentuated in both leaves and roots of cultivar Rouge than cultivar Locale while cv. Rouge maintained higher content in mg2+ either in leaves or in roots in the presence of NaCl than cultivar Locale. These results suggest an implication of Na+, K+ and mg2+ in salt resistance in these cultivars and that soluble sugars may play an important role in salt-resistance in Amaranthus cruentus. However, proline appears as a symptom of injury in stressed plants rather than an indicator of resistance.

关键词： Growth Ions Concentration osmolytes Accumulation Amaranthus cruentus Salt-Resistance mechanism

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