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| 1 | 改进BP神经网络在地下水环境质量评价中的应用显示文摘以LM算法和步长自适应法对BP神经网络进行改进,并将输入数据采用压缩系数法进行处理, 用改进后的BP神经网络对黄河流域某地区地下水环境质量进行评价,并和内梅罗指数法、灰色聚类法评价结果相比较,结果表明改进后的BP神经网络计算速度快、评价精度高、结果客观准确。 | 曹剑峰 平建华 SUMARE Oumar 姜纪沂 沈媛媛 钦丽娟 | 2006 | 水利水电科技进展2006，26，3： | 34 |
| 2 | Analysis on Technical Efficiency of Rice Farms and Its Influencing Factors in South-western of Niger显示文摘The present study focused on analyzing the technical efficiency of rice farms in southwest of Niger. The data from January to March 2015 survey of 148 ms in three districts of south-western of Niger were analyzed by using DEA-Tobit two-step method. In the first step, data envelopment analysis(DEA) was applied to estimate technical, pure technical and scale efficiency. In the second step, Tobit regression was used to identify factors affecting technical efficiency. The results showed that rice producers in southwest of Niger could reduce their inputs by 52% and still produce the same level of rice output. The Tobit regression showed that factors, such as farm size, experience in rice farming, membership of cooperative, main occupation and land ownership had a direct impact on technical efficiency. | Oumarou Boubacar Zhou Hui-qiu Muhammad Abdullah Rana Sidra Ghazanfar | 2016 | Journal of Northeast Agricultural University(English Edition)2016，23，4： | 5 |
| 3 | 直接涂膜技术用于质子交换膜燃料电池膜电极制备 (Ⅱ)显示文摘研究了直接涂膜过程中 ,催化剂液组成对电池性能的影响 .异丙醇在催化剂墨水中起到溶剂和造孔剂的作用 ,当催化剂墨水中催化剂、异丙醇的质量比为 1∶10时电池性能最好 .Nafion是催化剂层中良好的黏结剂和质子传导载体 .由于直接涂膜 ,使Nafion液与Nafion膜直接接触 ,从而增加了质子传导性 .实验结果表明 ,最佳的Nafion含量 (干基 )为NFP =33% .通过对不同金属含量的Pt/C催化剂的研究发现 ,金属含量不同 ,异丙醇和Nafion的最优含量亦随之改变 .考察了催化剂层不同制备工艺对电池性能的影响 ,表明催化剂层数越多电池性能越好 。 | 蒋淇忠 Oumarou Savadogo 马紫峰 | 2004 | 化工学报2004，55，8： | 3 |
| 4 | Factors associated with coverage of praziquantel for schistosomiasis control in the communitydirect intervention (CDI) approach in Mali (West Africa)显示文摘Background:Despite the progress made in the control of Neglected Tropical Diseases(NTD),schistosome and soil-transmitted helminth infections are far from being effectively managed in many parts of the world.Chemotherapy,the key element of all control strategies,is faced with some difficulties in terms of access to treatment.Our study aims to describe the factors involved in the success or failure of the community-directed intervention(CDI)approach through control programmes,which aims to achieve consistent high coverage at affordable and sustainable costs in endemic areas.Methods:The CDI approach was carried out from December 2007 to October 2008 in ten villages of the district of Diéma,Mali.At inclusion,each child part of the study’s sample was interviewed and submitted for a physical examination.The study focused on:data collection,treatment of the eligible population,evaluation of the treatment coverage,performance of community drug distributors(CDDs),and the involvement and perception of populations.Results:A total of 8,022 eligible people were studied with a mean coverage rate of 76.7%.Using multiple regression,it was determined that receiving praziquantel as treatment was associated with five factors:belonging to the Fulani or Moorish ethnic minority versus the Bambara/Soninke,use of the central versus the house-to-house drug distribution mode,the ratio of the population to the number of CDDs,the lack of supervision and belonging to the age group of 15 years or above(p<0.05).As well as that,it was found that the presence of parallel community-based programmes(HIV,tuberculosis)that provide financial incentives for community members discouraged many CDDs(who in most cases are volunteers)to participate in the CDI approach due to a lack of incentives.Conclusions:The findings indicate that the success of the CDI approach depends on,amongst other things,the personal characteristics of the respondents,as well as on community factors. | Abdoulaye Dabo Boubacar Bary Bourema Kouriba Oumar Sankaré Ogobara Doumbo | 2013 | Infectious Diseases of Poverty2013，2，1： | 3 |
| 5 | Woody species composition,diversity and structure of riparian forests of four watercourses types in Burkina Faso显示文摘Riparian forests are classified as endangered ecosystems in general,particularly in sahelian countries like Burkina Faso because of human-induced alterations and civil engineering works.The modification of this important habitat is continuing,with little attention being paid to the ecological or human consequences of these changes.The objective of this study is to describe the variation of woody species diversity and dynamic in riparian forests on different type of watercourse banks along phytogeographical gradient in Burkina Faso.All woody species were systematically measured in 90 sample plots with sides of 50 m × 20 m.Density,dominance,frequency and species and family importance values were computed to characterize the species composition.Different diver-sity indices were calculated to examine the heterogeneity of riparian forests.A total of 196 species representing 139 genera and 51 families were recorded in the overall riparian forests.The species richness of individuals with dbh ≥ 5cm increased significantly from the North to the South along the phytogeographical gradient and varied significantly between the different types of riparian forests.Similarity in tree species composition between riparian forests was low,which indicates high beta diversity and reflects differences in habitat conditions and topography.The structural characteristics varied significantly along the phyto-geographical gradient and between the different types of riparian forests.The diameter class distribution of trees in all riparian forests showed a reverse 'J' shaped curve except riparian forest of stream indicating vegetation dominated by juvenile individuals.Considering the ecological importance of riparian forest,there is a need to delineate and classify them along watercourses throughout the country. | Oumarou Sambaré Fidèle Bognounou Rüdiger Wittig Adjima Thiombiano | 2011 | Journal of Forestry Research2011，22，2： | 2 |
| 6 | Improvement of electrochemical and electrical properties of LiFePO_4 coated with citric acid显示文摘LiFePO_4 was synthesized using hydrothermal method and coated with different amounts of citric acid as carbon source.The samples were characterized by X-ray powder diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscope(TEM),surface area measurement—Brunauer–Emmett–Teller(BET),discharge capability,cyclic voltammetry(CV),and electrochemical impedance spectroscopy(EIS).The results show that the quality and thickness of the carbon coating on the surface of LiFePO_4 particles are very important.The optimum carbon content(about 30 wt%)can lead to a more uniform carbon distribution.Electrochemical results show that the samples containing 20 wt%,30 wt%,40 wt%,and50 wt% carbon deliver a discharge capacity of 105,167,151,and 112 mAhg^(-1),respectively,at the rate of 0.1C.The increase of carbon content leads to the decrease of discharge capacity of LiFePO_4/C,owing to the fact that excess carbon delays the diffusion of Li^+ through the carbon layers during charge/discharge procedure.The LiFePO_4/C with low carbon content exhibits poor electrochemical performance because of its low electrical conductivity.Therefore,the amount of carbon must be optimized in order to achieve excellent electrochemical performance of LiFePO_4/C for its application in a lithium ion battery. | Majid Talebi-Esfandarani Oumarou Savadogo | 2016 | Rare Metals2016，35，4： | 2 |
| 7 | 85例肢体枪弹伤的早期外科处理显示文摘目的总结85例枪弹伤早期外科处理的经验和教训。方法对肢体枪弹伤患者进行早期清创、引流并应用抗生素治疗,合并骨折者进行适当固定。20例切线伤中有15例行一期伤口闭合。结果85例枪弹伤的总感染率为23.5%,伤情较轻的切线伤感染者有8例。结论早期肢体枪弹伤处理应当重视创口的减压和充分引流,重视环境因素的影响。 | 付立新 刘利民 Oumar Cherif | 2008 | 首都医科大学学报2008，29，5： | 2 |
| 8 | Etiology, Pathology, Management and Prognosis of Chronic Pancreatitis in Chinese Population: A Retrospective Study显示文摘The purpose of this study was to investigate the etiology, pathological characteristics, management and prognosis of chronic pancreatitis in the Chinese population. The clinical data of 142 patients with chronic pancreatitis were retrospectively studied. All patients were of Chinese nationality and hospitalized from January 2008 to December 2011. Their ages ranged from 14 to 76 years, with a mean of 43 years. Of 142 patients, there were 72 cases of obstructive chronic pancreatitis(50.70%), 19 cases of alcoholic chronic pancreatitis(13.38%), 14 cases of autoimmune pancreatitis(9.86%) and 37 cases of undetermined etiology(26.06%). Pathologically, the average inflammatory mass diameter was 3.8±3.3 cm, biliary obstruction occurred in 36 cases, gall stones in 70 cases, calcification in 88 cases, ductal dilatation in 61 cases, side branch dilatation in 32 cases, ductal irregularity in 10 cases, lymphocytic inflammation in 23 cases, obliterative phlebitis in 14 cases, extra pancreatic lesion in 19 cases and fibrosis in 142 cases. Location of pancreatic lesion in the region of head(n=97), neck(n=16), body(n=12), tail(n=15) and whole pancreas(n=2) influenced the choice of surgical procedures. Ninety-four patients(66.20%) received surgical treatment and 33.80% received other treatments. After operation, 80.85% of 94 patients experienced decreased pain, and 8.51% of 94 showed recovery of endocrine function but with a complication rate of 12.77%. All the operations were performed successfully. According to the pain scale of European Organization for Research and Treatment of Cancer(QLQ-C30) a decrease from 76±22 to 14±18 was observed. Etiology, pathological characteristics, management and prognosis of chronic pancreatitis in the Chinese population vary from others. | Soriba Naby Camara Sonam Ramdany 赵刚 勾善淼 熊炯炘 杨智勇 殷涛 杨明 Oumar Taibata Balde Ahmed Boubacar Barry Seid.Adji 李想 金岩 吴河水 王春友 | 2015 | Journal of Huazhong University of Science and Technology(Medical Sciences)2015，35，3： | 2 |
| 9 | Monitoring the response of circulating epithelial tumor cells to adjuvant chemotherapy in breast cancer allows detection of patients at risk c early relapse显示文摘 | Katharina P Oumar C Andreas K | 2008 | J Clin Oncol2008，26，8： | 1 |
| 10 | The cost of accuracy in crop area estimation显示文摘 | Hugo D G Oumar T | 2005 | Agricultural systems2005，84，： | 1 |
| 11 | Development and performance evaluation of impactbambara groundnut sheller显示文摘 | Oluwole F A Abdulrahim A T Oumarou M B | 2007 | International Agrophysics2007，21，3： | 1 |
| 12 | Cyclic behaviour of sand-steel plate interface 显示文摘 | Oumarou T A Evgin E | 2005 | Canadian Geotechnical Journal2005，42，6： | 1 |
| 13 | Adverse drug reac-tions to antiretroviral therapy:Prospective study in children inSikasso(Mali)显示文摘 | Oumar AA Diallo K DembéléJP | 2012 | J Pediatr Pharmacol Ther2012，17，4： | 1 |
| 14 | 直接涂膜技术用于质子交换膜燃料电池膜电极制备显示文摘A new membrane electrolyte assembly (MEA) preparation method for polymer electrolyte membrane fuel cell (PEMFC) was developed by applying the directly printing catalyst on membrane technique.This method was simple and easy to be controlled as verified by repetition experiment. When the membrane with catalyst prepared by the new technique and the electrode with diffusion layer was only sandwiched but not hot pressed, this kind of MEA was called not-hot-press MEA (NPMEA) and its fuel cell performance was better than that of MEA which was hot pressed (HPMEA).The effects of 6 different kinds of solvents in catalyst mixture ink on the performance of fuel cell were assessed.It was discovered that iso-propanol was the best solvent in catalyst mixture ink and showed the best performance of fuel cell. Finally several MEAs prepared by different ways were tested on fuel cell station and it was reported that the performance of MEA prepared by the directly printing catalyst on membrane technique was the best in the whole voltage region. | 蒋淇忠 马紫峰 Oumarou Savadogo | 2004 | 磁流体发电情报2004，55，3： | 1 |
| 15 | Nanofiltration of seawater:fractionation ofmonoand multi-valent cations显示文摘 | Oumar Anne C Dominique Trebouet Pascal Jaouen | 2001 | Desalination2001，140，： | 1 |
| 16 | Phylogeography of Rice yellow mottle virus in Africa显示文摘 | Zakia Abubakar Fadhila Agnes Pinel Oumar Traore | 2003 | Journal of General Virology2003，84，： | 1 |
| 17 | African bovine trypanosomiasis: the problem of drug resistance显示文摘 | Stanny Geerts Peter H Holmes Mark C Eisler Oumar Diall | 2000 | Trends in Parasitology2000，，1： | 1 |
| 18 | The role of marine protected areas in sustaining fisheries: The case of the National Park of Banc d’Arguin, Mauritania显示文摘Mauritania is characterized by fast-growing fisheries that have developed over the past several decades from low levels of fishing to intense fishing and have led to severe decreases in biomass and severe signs of overexploitation.To ensure sustainable fisheries,a primary goal of science-based fisheries policy is to provide an adequate conservation status of marine habitats that are directly,or indirectly,fundamental for the lifecycle of fish populations of commercial interest.The National Park of Banc d’Arguin has been recognized for its nursery and fish biomass export functions.In this paper,we present the economic value of the fish provisioning service of marine coastal ecosystems of the protected area.We estimated the added value of artisanal fisheries,the spatial distribution of fishing activities,the contribution of the Park to the Mauritanian fisheries and the heritage value of artisanal fisheries.Overall,the average added value for artisanal fisheries is about 43 million MRU(1 million euros)over the period 2006–2017.It mainly benefits to the ship-owners,which generates inequalities and threatens the livelihoods of the Imraguen.The spatial distribution of fishing activities and associated revenues shows high variability throughout the years,the seasons and the geographic areas,and reveals the high adaptability of Imraguen fishers.Fishing grounds are mostly located close to the shore,associated with seagrass beds,confirming the service of fish provisioning rendered by this ecosystem.Furthermore,the high productivity of seagrass beds contributes to the spill-over of biomass.The contribution of the Park to fishing activities that occur within the Mauritanian Exclusive Economic Zone is estimated to 15%,representing an added value creation of 3.2 billion MRU(71 million euros).The heritage value of the fisheries is assessed,through fishers’willingness to accept to stop their fishing activities,at 17.5 million MRU(0.4 million euros).Thus,this paper highlights the necessity of incorporating an ecosystem-based approach along with fishers’knowledge and adaptability into future conservation plan of the National Park of Banc d’Arguin and fisheries management at the local,national and regional scale. | Ewan Trégarot Beyah Meissa Didier Gascuel Ousmane Sarr Yeslem El Valy Oumar Hamet Wagne Elimane Abou Kane Abou Cire Bal Mohamed Saleck Haidallah Assane Deda Fall Abdou Daïm Dia Pierre Failler | 2020 | Aquaculture and Fisheries2020，5，5： | 1 |
| 19 | Control of phytoplankton bacteria interactions by stoichiometric constraints显示文摘 | Danger M Leflaive J Oumarou C | | 0，，： | 1 |
| 20 | Bacteria can control stoichiometry and nutrient limitation of phyto-plankton显示文摘 | Danger M Oumarou C Benest D | | 0，，： | 1 |
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