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Vegeta.ion types a.d clima.e conditions reflected by the modern phytolith a.sembla.es in the suba.pine Da.a.ling Forest Reserve, centra. China

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Frontiers of Ea.th Science 2015年第2期9卷 268-275页

作者： Dja.a.ibe Desire traore Ya.sheng GU Humei LIU Ceven SHEMSa.Ga.Jiwen GE Sta.e Key La.ora.ory of Biogeology a.d Environmenta. Geology China University of Geosciences Wuhan 430074 China Hubei Key La.ora.ory of Wetla.d Evolution & Eco-Restora.ion (WEER) China University of Geosciences Wuhan 430074 China

This resea.ch describes modern phytolith records a.d distributions from suba.pine surfa.e soils in the Da.a.ling Forest Reserve, a.d revea.s its implica.ions for loca. clima.e conditions with respect to the a.titude gra.ient. Well-preserved phytolith morpho-types, a.sem- bla.es, a.d clima.ic indices were used to study the rela.ionship between loca. vegeta.ion a.d clima.e condi- tions. The phytolith cla.sifica.ion system is ma.nly ba.ed on the cha.a.teristics of deta.led morpho-types described for a.a.omica. terms, which a.e divided into seven groups： long cells, short cells, bulliform cells, ha.r cells, pterido- phyte type, broa.-lea.ed type, a.d gymnosperm type. Phytoliths origina.ing from the Poa.ea. a.e composed of Pooidea. （rondel a.d tra.eziform）, Pa.icoidea. （biloba.e, cross, a.d polyloba.e）, Chloridoidea. （short/squa.e sa.- dle）, a.d Ba.busoidea. （oblong conca.e sa.dle）. Ba.ed on the a.titudina. distribution of the phytolith a.sembla.es a.d the indices of a.idity （Iph）, clima.e （Ic）, a.d tree cover density （D/P）, five phytolith a.sembla.e zones ha.e revea.ed the five types of clima.ic conditions ra.ging from 1,169 m to 2,005 m in turn： wa.m-wet, wa.m-xeric to wa.m-mesic, wa.m- xeric to cool-mesic, cool-xeric, a.d cool-mesic to cool-xeric. The Ba.busoidea., Pa.icoidea., a.d Chloridoidea. a.e the domina.t vegeta.ion a. the lower-middle of the mounta.ns, while Pooidea. is ma.nly distributed in the higher mounta.ns. The close rela.ionship between phytolith a.semblea.es a.d cha.ges of a.titude gra.ient suggest tha. vegeta.ion distribution pa.terns a.d pla.t ecology in the Da.a.ling mounta.ns a.e controlled by tempera.ure a.d humidity conditions. Our results highlight the importa.ce ofphytolith records a. relia.le ecoclima.ic indica.ors for vegeta.ion ecology in subtropica. regions.

关键词： centra. China suba.pine surfa.e soil phytolithrecords vegeta.ion a.d clima.e cha.ge

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The high level la.gua.e for system specifica.ion: a.model-driven a.proa.h to systems engineering

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Interna.iona. Journa. of Modeling, Simula.ion, a.d Scientific Computing 2016年第1期7卷 180-214页

作者： Ha.za. Ola.rewa.u a.iyu Ouma. Ma.ga.Ma.a.ou Ka.a.traore School of Informa.ion a.d Communica.ion Technology Federa. University of Technology Minna.Gida.-Kwa.u Ca.pus MinnaNigeria Universit´e des Sciences des Techniques et des Technologies BamakoMali LIMOS CNRS UMR 6158 Universite Bla.se Pa.ca. Clermont-FerrandFrance

We present HiLLS(High Level La.gua.e for System Specifica.ion),a.gra.hica. forma.ism tha. a.lows to specify Discrete Event System(DES)models for a.a.ysis using methodologies like simula.ion,forma. methods a.d ***’synta. is built from the integra.ion of concepts from System Theory a.d Softwa.e Engineering a.ded by simple concrete nota.ions to describe the structura. a.d beha.iora. a.pects of *** pa.er provides the synta. of HiLLS a.d its simula.ion sema.tics which is ba.ed on the Discrete Event System Specifica.ion(DEVS)*** DEVS-ba.ed Modeling a.d Simula.ion(M&S)perspective,HiLLS is a.pla.form-independent visua. la.gua.e with generic expressions tha. ca. serve a. a.front-end for most existing DEVS-ba.ed simula.ion environments with the a.d of Model-Driven Engineering(MDE)*** a.so suggests wa.s to fill some ga.s in existing DEVS-ba.ed visua. forma.isms tha. inhibit complete specifica.ion of the beha.ior of complex *** provide a.ca.e study to illustra.e the core fea.ures of the la.gua.e.

关键词： HiLLS modeling a.d simula.ion integra.ed forma.ism DEVS Object-Z

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Prelimina.y studies of a.ute a.d sub-chronic toxicity of the a.ueous extra.t of Guibourtia.tessma.nii(Ha.ms) *** stem ba.ks (Ca.sa.pinia.ea.) in mice a.d ra.s

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a.ia. Pa.ific Journa. of Tropica. Biomedicine 2016年第6期6卷 506-510页

作者： Noreen Oria.na.Koumba.Ma.ingou a.istide traore a.a.n Souza.Ma.la.ne Michelle Bouka.dou Mouna.ga.Ra.ssa.Reine a.oret Sa.seny Sylvin Ouedra.go a.fred Sa.a.enedyo traore La.ora.ory of Pha.ma.ology a.d Toxicology Pharmacopoeia and Traditional Medicines Institute Resea.ch Center in Biologica. Food and Nutritional SciencesUniversity of Ouagadougou Depa.tment of Medicine a.d Tra.itiona. Pha.ma.opoeia.Pha.ma.y Health Science Research Institute Depa.tment of Biology Faculty of SciencesUniversity of Sciences and Technique of Masuku(USTM)

Objective: To investiga.e the toxicity of a.ueous extra.t of Guibourtia.tessma.nii(Ha.ms) J. Leona.d(G. tessma.nii) a.d eva.ua.e its ***: NMRI mice were used to determine the a.ute toxicity of G. *** concentra.ions of the pla.t extra.ts were a.ministered intra.eritonea.ly or by force-feeding. Genera. beha.ior a.d dea.h were monitored a.d recorded da.ly for 7 *** order to determine the sub-a.ute toxicity of the extra.t, severa. doses were a.ministered by ora. ga.a.e da.ly for 28 da.s in a.ult Wista. ra.s. Different pa.a.eters were a.sessed including body weight, food a.d wa.er inta.e, biochemica. pa.a.eters a.d severa. vita. orga. ***: LD50 of 328.78 mg/kg wa. obta.ned by i.p. route a.d more tha. 5 000 mg/kg wa. obta.ned in a.ute toxicity by ora. route. In sub-a.ute toxicity, no significa.t a.tera.ion wa. observed in body weight or vita. orga.s, food a.d wa.er inta.e, a.d biochemica. ***: The results showed tha. the a.ueous extra.t of G. tessma.nii ha. low toxicity intra.eritonea.ly a.d no sub-a.ute toxicity via.ora. inta.e.

关键词： Guibourtia tessma.nii Stem ba.ks Pla.t extra.t Herba. medicine Toxicity

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Polycrysta.line Silicon Gettered by Porous Silicon a.d Hea.y Phosphorous Diffusion

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Tsinghua.Science a.d Technology 2004年第2期9卷 242-245页

作者：刘祖明 Souleyma.e K traore 张忠文罗毅 Sola. Energy Resea.ch Institute Yunnan Provincial Renewable Energy Engineering Key Laboratory Yunnan Normal University Kunming 650092 China Depa.tment of Electronic Engineering Tsinghua University Beijing 100084 China

The biggest ba.rier for photovolta.c (PV) utiliza.ion is its high cost, so the key for sca.e PV utiliza.tion is to further decrea.e the cost of sola. cells. One wa. to improve the efficiency, a.d therefore lower the cost, is to increa.e the minority ca.rier lifetime by controlling the ma.eria. defects. The ma.n defects in gra.n bounda.ies of polycrysta.line silicon gettered by porous silicon a.d hea.y phosphorous diffusion ha.e been studied. The porous silicon wa. formed on the two surfa.es of wa.ers by chemica. etching. Phosphorous wa. then diffused into the wa.ers a. high tempera.ure (900℃). a.ter the porous silicon a.d diffusion la.ers were removed, the minority ca.rier lifetime wa. mea.ured by photo-conductor deca.. The results show tha. the lifetime抯 minority ca.riers a.e increa.ed grea.ly a.ter such trea.ment.

关键词： polycrysta.line gettering gra.n bounda.ies pa.siva.ion porous silicon hea.y phosphorous diffusion

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Determina.ts of internet a.diction a.ong medica. students in Ca.a.la.ca. a.cross-sectiona. study

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Globa. Hea.th Journa. 2023年第2期7卷 101-109页

作者： Bouba.a. traore Ya.sine a.uilo Sa.ira.Ha.soune Sa.ira.Na.i Epidemiology La.ora.ory Faculty of Medicine and Pharmacy of CasablancaHassan Ⅱ UniversityCasablancaMorocco Kita.Hea.th District Regional Directorate of Health and Public Hygiene of KayesKitaMali La.ora.ory of Cellula. a.d Molecula. Pa.hology/Tea.“Epidemiology a.d Histology of Chronic a.d Ca.cerous Disea.es” Faculty of Medicine and Pharmacy of CasablancaHassan Ⅱ UniversityCasablancaMorocco

Objective:This study a.med to estima.e the preva.ence a.d determina.ts of Internet a.diction a.ong medica. students a. the Fa.ulty of Medicine a.d Pha.ma.y of Ca.a.la.ca.***:This wa. a.cross-sectiona. study conducted a.ong students a. the Fa.ulty of Medicine a.d Pha.ma.y in Ca.a.la.ca.between October a.d Ma.ch *** online questionna.re wa. a.ministered to students to collect da.a.a.d internet a.diction wa. a.sessed by the Young questionna.re.a.score threshold≥50 wa. a.opted to define *** a.d multiva.ia.e logistic regression a.a.yses were used to identify fa.tors a.socia.ed with internet ***:Out of a.tota. of 4093 FMPC students enrolled in the 2020-2021 a.a.emic yea.,506 a.reed to pa.ticipa.e in this study,including 303 fema.es a.d 203 *** mea. a.diction score a.sessed on the Young sca.e wa.(49.08±16.11).The preva.ence of Internet a.diction wa. 44.5%(225/506,95% CI:40% to 49%).Multiple regression a.a.ysis showed tha. being older tha. 20 yea.s(OR=0.17,95% CI:0.40 to 0.64),being fema.e(OR=1.70,95% CI:1.04 to 2.78),being in the disserta.ion yea.(6th yea.)(OR=5.17,95% CI:2.23 to 11.44),ha.ing a.history of psychia.ric consulta.ion(OR=2.64,95% CI:1.34 to 5.21),ha.ing divorced pa.ents(OR=2.64,95% CI:1.05 to 5.87),use of sleeping medica.ion(OR=2.9,95% CI:1.05 to 3.70),sleep disorders(OR=2.06,95% CI:1.25 to 3.79),sleep depriva.ion(OR=2.26,95% CI:1.39 to 3.65),excessive da.time sleepiness(OR=5.39,95% CI:2.19 to 13.24),a.xiety disorders(OR=1.47,95% CI:1.18 to 2.30),dura.ion of internet connection(>4 h)(OR=11.43,95% CI:4.85 to 27.66),a.d ha.ing frequent conflicts with pa.ents(OR=2.37,95% CI:1.49 to 3.79)a.d friends(OR=0.26,95% CI:0.11 to 0.65)were independently a.socia.ed with internet ***:The preva.ence of Internet a.diction a.ong medica. students in Ca.a.la.ca.rema.ns *** a.tion on the determina.ts would be of grea. va.ue in prevention.

关键词： Internet a.diction disorder Medica. students a.socia.ed fa.tors Cross-sectiona. study Morocco

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Study on the Movement of Gra.n Pa.ticles on Bionic Non-smooth Surfa.e in Gra.n Ta.ks

Study on the Movement of Grain Particles on Bionic Non-smoot...

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作者： Souleyma.e N’Fa.oussa.traore 江苏大学

学位级别：硕士

联合收割机粮箱的籽粒输运过程中存在粘附堆积的问题,这严重影响联合收割机的作业效率。本文基于离散元法(DEM)模拟联合收割机粮箱卸粮过程中水稻颗粒群的运动,分析了粮箱壁面压力分布变化,研究了谷物颗粒群流动特性;设计搭建了微型粮... 详细信息

联合收割机粮箱的籽粒输运过程中存在粘附堆积的问题,这严重影响联合收割机的作业效率。本文基于离散元法(DEM)模拟联合收割机粮箱卸粮过程中水稻颗粒群的运动,分析了粮箱壁面压力分布变化,研究了谷物颗粒群流动特性;设计搭建了微型粮箱台架,基于台架试验研究了粮箱内表面材质和操作参数下的颗粒流动特性;通过仿真和台架试验研究了不同仿真非光滑表面型式下粮箱卸粮过程中的颗粒运动。这对缓解粮箱籽粒粘附堆积,联合收割机粮箱的设计、制造和改进具有重要意义。基于DEM模拟了水稻籽粒在卸粮过程中的运动,研究了粮箱的压力分布,结果表明不同壁面的压力是不一致的,当粮箱装满颗粒时,与粮箱底部的两个倾斜壁面相比,四个垂直壁面承受的应力较低,而粮箱底部的壁面承受最高压力。以粮箱内表面材质(钢、亚克力、木材、塑料)、粮箱底部倾斜角度、螺旋搅龙转速为变量,通过仿真和台架试验研究了卸粮过程中的籽粒流动特性,研究结果表明水稻籽粒在木质表面的附着力小于在钢材和亚克力表面上的附着力,而在塑料表面的附着力大于其他材料。增加粮箱底部倾斜角度增加了水稻籽粒在表面的附着力,同时提高了螺旋钻的转速,减少了籽粒在粮箱表面的附着力。将两种不同的仿生非光滑表面型式应用于粮箱内表面,并基于仿真和台架试验研究了粮箱卸粮过程中的籽粒粘附和运动变化,结果表明水稻籽粒在非光滑仿生表面粘附的仿真和台架试验结果相似。粘附在仿生1和仿生2表面的籽粒质量均少于光滑表面。比较两种仿生表面样品上水稻籽粒的定性附着力,水稻籽粒在仿生1表面的附着力低于仿生2表面。在这项研究中,粮箱壁面压力分布、粮箱底部倾斜角度、表面材料的数据可用于粮箱制造中的设计。研究表明,仿生非光滑表面可用于谷物处理设备,以减少谷物在潮湿表面上的粘附堆积。

关键词：联合收割机粮箱颗粒运动 DEM 仿生非光滑

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BP neura. network model for ma.eria. distribution prediction ba.ed on va.ia.le a.plitude a.ti-blocking screening DEM simula.ions

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Interna.iona. Journa. of a.ricultura. a.d Biologica. Engineering 2023年第4期16卷 190-199页

作者： Zheng Ma.Yongle Zhu Zhiping Wu Souleyma.e Nfa.oussa.traore Du Chen Licheng Xing School of a.ricultura. Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina Key La.ora.ory of Modern a.ricultura. Equipment a.d Technology Ministry of Education&Jiangsu ProvinceJiangsu UniversityZhenjiang 212013JiangsuChina Key La.ora.ory for Theory a.d Technology of Intelligent a.ricultura. Ma.hinery a.d Equipment Jiangsu UniversityZhenjiang 212013JiangsuChina College of Engineering China Agricultural UniversityBeijing 100083China Jia.gsu World a.ricultura. Ma.hinery Co. Ltd.Picheng Industrial ParkDanyang 212311JiangsuChina

The ma.eria. feeding cha.ging of combine ha.vester is ea.y to ca.se a.cumula.ion a.d blocka.e of the vibra.ing screen,which seriously a.fects the ha.vest *** order to a.levia.e such a.cumula.ion a.d blocka.es on the vibra.ing screen surfa.e,the guide chute rota.ion a.gle of the improved va.ia.le a.plitude screening mecha.ism wa. selected a. the ta.get va.ia.le,a.d EDEM-RecurDyn wa. employed to simula.e the a.ti-blocking process of the va.ia.le a.plitude under a.cha.ging feeding qua.tity(0.5 kg/s a.norma.,0.2 kg/s norma.)of ma.eria.s(rice gra.n a.d stem mixture).a.BP(a. error ba.k propa.a.ion a.gorithm)neura. network wa. designed a.d the prediction model of the ma.eria. distribution wa. subsequently constructed on the va.ia.le screening surfa.e under different chute a.gles during a.norma. *** results revea.ed a.continuous decrea.e in the qua.ity a.d time of the ma.eria. blocka.e a. the front end of the screen surfa.e with the increa.ing guide chute *** the guide chute a.gle of 20°-45°a.d a.justment time of 3-6 s,the blocked a.d a.cumula.ed ma.eria.s a. the front-end screen surfa.e wa. be moved ba.k to Grid 6 for ***,overtime,the screen surfa.e ma.eria.s continued to move ba.k under the chute a.gle of 40°-45°,which ha. a.grea. impa.t on the screening *** the guide chute a.gle of 30°-35°a.d a.justment time of 4 s,the ma.eria.s on the screen surfa.e were evenly distributed in Grid *** wa. a.le to a.levia.e the a.cumula.ion a.d blocka.e of the screen surfa.e *** R of the ma.eria. distribution prediction model(BP neura. network)on the screen surfa.e wa. determined a. 0.97,indica.ing the high relia.ility a.d a.cura.y of the ma.eria. distribution model on the screen surfa.e ba.ed on the BP neura. *** work provides a. importa.t reference for the va.ia.le a.plitude intelligent control of screen surfa.e ma.eria. a.ti-blocking.

关键词： va.ia.le a.plitude ma.eria. distribution EDEM-RecurDyn BP neura. network

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Identifica.ion of pests a.d a.sessment of their da.a.e on Ca.a.a.procera.a.d Lophira.la.ceola.a.in Burkina.Fa.o,West a.rica

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Journa. of Forestry Resea.ch 2017年第3期28卷 585-591页

作者： Ba.la.i Tinda.o Olivier Gna.kine a.a.e Ouedra.go Ma.a.ou traore Jφrgen a.elsen a.ne Mette Lykke Unite de Forma.ion et de Recherche en Sciences de la.vie et de la.Terre Laboratoire d'Entomologie Fondamentale et AppliqueeUniversite de Ouagadougou03 BP 7021 OuagadougouBurkina Faso Unite de Forma.ion et de Recherche en Sciences de la.vie etde la.Terre Laboratoire de Biologie et Ecologie VegetalesUniversite de Ouagadougou03 BP 7021 OuagadougouBurkina Faso INERA Institut de l'Environnement et de Recherches Agricoles01 BP 476 Ouagadougou 01Burkina Faso Depa.tment of Bioscience Aarhus UniversityAarhusDenmark

Nontimber forest products a.e a.source of income for women in rura. a.rica. communities. However, these products a.e frequently da.a.ed by insect pests. The present study investiga.es the diversity a.d da.a.e ra.es of insect pests tha. a.ta.k Ca.a.a.procera.seeds a.d Lophira.la.ceola.a.fruits. The experiment wa. set up in western Burkina.Fa.o a.d, for C. ca.a.a. consisted of pests collected from seeds tha. ha. fa.len to the ground a.d from stockpiled seeds. For L. la.ceola.a. pests were collected from fruits on the trees, a.d on the ground. The collected sa.ples were sent to the la.ora.ory to estima.e the proportion of da.a.ed seeds/fruits a.d rea. the insects. The results showed tha. Ephestia.spp., Tribolium ca.ta.eum, Oryzea.hilus spp., a.d Tenebroides ma.rita.icus were the pests of Ca.a.a.procera.seeds a.d Lophira.la.ceola.a.fruits. Ephestia.spp. wa. recorded a. the ma.n pest of both C. proeera.a.d L. la.ceola.a. wherea. T. ca.ta.eum wa. only detected from seeds of L. la.ceola.a. For C. procera. the stocks were the most infested （29 %） by Ephestia.spp. The infesta.ion ra.e of fruits of L. la.ceola.a.by Ephestia.spp, on trees （31.42 ± 3.75 %） wa. less tha. the ra.e of fruits by T. ca.ta.eum on the ground （44.00 ± 3.5 %）. The different body sizes of Ephestia.spp. ma. indica.e the occurrence of two puta.ive species, one from C. procera.a.d a.other one from L. la.ceola.a. This work provides importa.t informa.ion tha. could contribute to the setting up of a.loca.-sca.e susta.na.le ma.a.ement fra.ework for oil tree pests in Burkina.Fa.o a.d surrounding countries.

关键词： Insect diversity Ca.a.a.procera Lophira.a.ceola.a Ephestia.spp. Pest ma.a.ement

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New Method for Injecta.le Quinine Qua.ity a.sura.ce Control Using a.Multi-Spectra. Microscope

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Optics a.d Photonics Journa. 2018年第3期8卷 66-74页

作者： a. Sow I. traore T. Dia.lo a. BA La.ora.oire d’Optique de Spectroscopie et des Sciences Atmosphériques (LOSSA) Faculté des Sciences et Techniques (FST) Université des Sciences des Techniques et des Technologies de Bamako Bamako Mali Dépa.tement des Sciences du Médica.ent Faculté de Pharmacie Université des Sciences des Techniques et des Technologies de Bamako Bamako Mali La.ora.oire Na.iona. de la.Sa.té (LNS) Bamako Mali

a.rica.is the world region tha. is most a.fected by ma.a.ia. a.ong the thera.ies used, injecta.le quinine is considered to be one of the effective a.tima.a.ia. drug, however non-qua.ity a.sured a.tima.a.ia.s clea.ly ha.e a.strong ma.ket penetra.ion a.ross a.rica. To overcome this problem, it becomes more a.d more necessa.y to set up qua.tita.ive a.d qua.ita.ive a.a.ysis system for a.tima.a.ia. qua.ity control. The objective of the present investiga.ion is a. a.tempt to use customized multispectra. microscope equipped with UV-Visible la.ers for injecta.le quinine qua.ity a.sura.ce control routinely. For tha., we ha.e esta.lished the ca.ibra.ion curve of quinine solution concentra.ion a. a.function of a.ea.under light intensity histogra. crossing the solution. From this ca.ibra.ion curve, we ca. check the conformity of a.y injecta.le quinine a.cording to the pha.ma.opoeia.involved. The proposed technique is a.promising a.terna.ive for drug qua.ity control routinely.

关键词： Injecta.le Quinine a.ea Under Curve Multispectra. Microscope a.sorba.ce

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Influences of the Textured Surfa.e Micro-Texture Depth on the Friction Coefficient

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World Journa. of Mecha.ics 2020年第12期10卷 221-228页

作者： Moussa.Ma.a.a.traore Sta.e Key La.ora.ory for Ma.ufa.turing Systems Engineering School of Mechanical Engineering Xi’an Jiaotong University Xi’an China Ecole Norma.e d’Enseignement Technique et Professionnel du Ma.i Cité Universitaire de Kabala Bamako Mali

The use of textured surfa.es in lubrica.ion to improve the tribologica. cha.a.teristics ha. been widely studied. The understa.ding of the textured surfa.e geometric pa.a.eters influences on these tribologica. cha.a.teristics could help to improve their a.plica.ions in industry. In this pa.er, we purpose to a.a.yze the influence of the micro-texture depth on the friction coefficient experimenta.ly. The experiment is conducted using different copper a.loy sa.ples ha.e been the first la.er textured with different micro-hole depth (40.83 μm a.d 46.36 μm). a.3D electronic Olympus microscope is used to visua.ize the sha.es of the holes a.d find the depths. Then, the friction test ha. been conducted using these sa.ples with the sa.e velocity. The time va.ia.ion of the friction coefficient is plotted a.d a.a.yzed. The a.a.ysis of time va.ia.ion of the friction coefficient shows a.reduction of friction coefficient with the increa.e of the micro-hole depth ha. been observed. In some ca.es, this reduction is significa.t.

关键词： Friction Coefficient Tribology Textured Surfa.es

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