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作者： yacouba coulibaly 中国石油大学(北京)

学位级别：硕士

Video super-resolution（VSR）is a deep learning-based video restoration task that aims to improve video *** a series of low-resolution（LR）input frames,the goal of VSR is to map the corresponding central high-resolution（HR）frame by exploring the temporal connection between consecutive *** convolution neural network（CNN）,due to its high efficiency in computer vision tasks,has been widely used in ***,given the input frames,these methods try to align the reference frame with the supporting frames using optical *** motion estimation and motion compensation（MEMC）using optical flow is computationally expensive and fails to guarantee proper high resolution（HR）.This study presents a novel approach to video super-resolution（VSR）that addresses the challenges of computational complexity and time consumption in existing *** focuses on extracting shared information from the reference frame and its neighboring frames and how different features across spatial,temporal,and channel dimensions interact and depend on each other to improve video *** achieve this,the proposed approach first adopts a three-step learning pipeline:efficient fast learning with the fast-learning block（3D-EFL）.The 3D-EFL introduces 3D depthwise separable convolution to learn feature representation from input frames with few computational *** second step consists of a triplet attention learning strategy that investigates the interactions between spatial and channel dimensions and exploits these interactions to enhance video *** final step consists of increasing the spatial dimension of the feature and high-resolving the reference ***,it adopts low-residual and high-residual learning to connect these steps,alleviating the gradient vanishing problem and allowing more gradient *** proposed approach not only reduces computational complexity but also provides an accurate high-resolution（HR）output without the need for inter-frame mot

关键词： deep learning video super-resolution attention neural network cross-dimensional learning dimensional reduction

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Design and Analysis of High Gain and Broadband Antennas Based on a Dielectric Resonator and a Superstrate for Millimeter-Wave Underground Communications

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通讯和计算机（中英文版） 2011年第7期8卷 569-577页

作者： Mourad Nedil yacouba coulibaly Larbi Talbi Tayeb A. Denidni UQAT-LRTCS Universitd de Qudbec en Abitibi-Temiscaminque and Underground Communications Research Laboratory （LRTCS） 450 3e avenue Val d＇Or Qc J9P 1S2 Canada Universite du Qudbec en Outaouais 101 Saint-Jean-Bosco Gatineau Qc 18X 3X7 Canada INRS-EMT Place Bonaventure 800 de la Gauchetibre O. Montrdal Qc H5A1K6 Canada

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Geochemical Signatures of Séguéla Peridotites in the West African Craton

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Journal of Geoscience and Environment Protection 2022年第12期10卷 100-116页

作者： Allialy Marc Ephrem Dicko Kagou Houssou N’guessan Nestor Kouamelan Alain Nicaise coulibaly yacouba Laboratory of Geology Mineral and Energy Resources (LGRME) Faculty of Earth Science and Mineral Resources Félix Houphoue&#235 t Boigny University Abidjan C&#244 te d’Ivoire

The present study deals with peridotites found in the paleo-proterozoic domain of the Leo Man Shield, Séguéla region, west-central of Côte d’Ivoire. Results show that Séguéla peridotites are composed of lherzolites, dunites and harzburgites. However, iherzolites are the most abundant. The phenocrysts in these rocks are olivine most often serpentinised, and pyroxenes, represented by diopside and enstatite. Amphiboles are divided into two groups: magmatic amphiboles and those from the destabilization of clinopyroxene. Spinels have CrO3 content which varies between 28% and 37%, Al2O3 between 33% - 41% and MgO is equal to 18%;they are poor in TiO2 and do not contain zinc oxide. Séguéla peridotites are characterised by a negative anomaly in Nb-Ta, associated with an enrichment of lithophilic elements and light rare earth elements with a fractionation rate (La/Yb) which varies between 46.22 and 150.72 and heavy rare earth elements, and HFSE depletion, which may suggest that were formed in an art context, that is, a mantle enriched by fluids from a subduction zone. However, another hypothesis could be considered, that of the interaction between the mantle and magmas in a subduction zone context.

关键词： Geochemestry Peridotites Lherzolite West African Craton Séguéla Côte d’Ivoire

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面向广州马里贸易商的中国服装公司营销策略研究

面向广州马里贸易商的中国服装公司营销策略研究

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作者：瑟伊都（SEYDOU yacouba coulibaly）昆明理工大学

学位级别：硕士

1978年开始的经济改革大大提高了国家的生产力,提高了生活水平。随着20世纪80年代中国对外开放,这极大地促进了中国对外贸易的发展和营销。由于经济改革,中国的国家贸易公司和其他主要贸易集团建立了出口贸易公司。在全球经济增长多元... 详细信息

1978年开始的经济改革大大提高了国家的生产力,提高了生活水平。随着20世纪80年代中国对外开放,这极大地促进了中国对外贸易的发展和营销。由于经济改革,中国的国家贸易公司和其他主要贸易集团建立了出口贸易公司。在全球经济增长多元化发展的有利条件下,中国服装企业的产品技术环境和营销模式逐渐由模仿向创新逐渐增加。中国成为非洲人民的目的地,特别是马里商人来到这里做生意。广州是中国最大的国际贸易城市,有超过1000名马里人贸易商在那里生意,他们中的大部分已经由于中国的新贸易政策而回国。本文将分析广州某些批发服装市场中的马里商人的消费行为,如白马,天马,玉龙等服装批发市场,并对广州地区商家的满意服务和面临的问题进行细致的分析,并分析中国批发服装的营销策略试图通过提高服务质量来改善服务。通过调查问卷收集和分析本文设计结论的数据:由于我们知道马里贸易商由于中国的新贸易政策而回国。在广州,仅有100名马来西亚贸易商接受了采访,其中近99%在广州商业。据他们说,他们在广州时,每天都会去不同的批发市场购买他们的产品.95%的马里贸易商是男性,5%是女性。每个交易者都有自己的购买商品的目标,有些交易员为男性和女性购买,有些还为男性和女性购买。他们花费的金额取决于每个交易者获得多少钱。最高的结果是每天100,000到2000000元人民币。据贸易商说,他们面临的大问题是沟通（语言）的问题,99%的人不会说当地语言,甚至一点点咬他们也不会说话的普通话。在对调查结果的相关分析结论中,服装的质量,服装的价格,服装的种类,服装的大小,服装的样式与大多数马里贸易商对服装的购买行为有着显著相关程度,而在进一步分析中,服装的质量、男士服装种类和女士服装种类对马里贸易商的满意程度显著相关,而服装的颜色、布料、性别种类对满意度的相关性不显著。通过上述分析结果,文章针对性地提出了中国服装公司对马里贸易商的营销策略,包括目标营销策略和市场营销策略,旨在为中马服装贸易交易提供有益的建议。

关键词：中国服装公司马里贸易商服装营销策略

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Numerical analysis and geophysical monitoring for stability assessment of the Northwest tailings dam at Westwood Mine

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International Journal of Mining Science and Technology 2017年第4期27卷 701-710页

作者： coulibaly Yaya Belem Tikou Cheng LiZhen Research Institute on Mines and Environment (RIME) Universite du Quebec en Abitibi-Temiscamingue Rouyn-Noranda J9X 5E4 Canada

The Westwood Mine aims to reuse the tailings storage facility #1(TSF #1) for solid waste storage, but,downstream of the Northwest dike is considered critical in terms of stability. This paper uses numerical modeling along with geophysical monitoring for assessing the Northwest dike stability during the restoration phase. The impact of waste rock deposition in the upstream TSF #1 is considered. The geophysical monitoring is based on electrical resistivity methods and was used to investigate the internal structure of the dike embankment in different deposition stages. The numerical simulations were performed with SLOPE/W code. The results show a factor of safety well above the minimum recommended value of 1.5. Geophysical monitoring revealed a vertical variation in the electrical resistivity across the dike, which indicates a multilayer structure of the embankment. Without any current in situ data, the geophysical monitoring helped estimating the nature of the materials used and the internal structure of the embankment. These interpretations were validated by geological observation of geotechnical log of the embankment. Based on this study, it is recommended that the water polishing pond be partly filled before waste rock is deposited in TSF #1. In addition, to ensure the stability of the dike, the piezometric head monitoring prior to and during waste rock deposition is recommended.

关键词： Mine tailings impoundment Dike Embankment Numerical analysis Factor of safety Geophysical monitoring

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A study of the factors affecting mobile money penetration rates in the West African Economic and Monetary Union (WAEMU) compared with East Africa

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Financial Innovation 2021年第1期7卷 536-561页

作者： Sionfou Seydou coulibaly Department of Economics and Management University Félix Houphouët Boigny of AbidjanCocodyPO Box:01 BP 974 Abidjan 01AbidjanCôte d’Ivoire

According to the 2017 Global Financial Inclusion(Global Findex)database,the average penetration rate of mobile money accounts in East Africa is higher than that of the *** study attempts to understand the factors driving the adoption and the use of mobile financial services in the WAEMU compared to East *** achieve this,micro-level data from the 2017 Global Findex database are used to perform probit and multinomial logit *** findings reveal that the same determinants influence the adoption and use of mobile money accounts across the populations of both groups of countries,specifically those related to the least vulnerable social categories(i.e.,males,older,more educated,richer and part of the workforce).Therefore,in comparison to East Africa,the delay in the penetration of mobile money accounts observed in the WAEMU may be attributed to insufficient policies for increasing the awareness of the benefits of mobile financial *** study recommends that governments in WAEMU countries promote the use of mobile money accounts among the working-age population(adults aged between 25 and 64)through the improvement of individual income level,and the introduction of incentives into the education system to encourage their population to attain higher levels of education.

关键词： Financial inclusion Mobile money Probit Multinomial logit East Africa WAEMU

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Bubble Coalescence Heat Transfer During Subcooled Nucleate Pool Boiling

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工程热物理学报 2012年第12期33卷 2171-2175页

作者： Abdoulaye coulibaly LIN Xipeng Bi Jingliang David M Christopher Department of Thermal Engineering Tsinghua University

Bubble coalescence during subcooled nucleate pool boiling was investigated experimentally using constant wall temperature boundary conditions while the wall heat flux was measured at a various locations to understand the effects of coalescence on the heat *** observations showed that the coalesced bubble moved and oscillated on the heater surface with significant heat transfer variations prior to *** observations also showed coalescence with no increase in the heat transfer *** heat flux for boiling with coalescence fluctuated much more than for single bubble boiling due to the vaporization of the liquid layer trapped between the bubbles.

关键词： microheater pool boiling bubble coalescence bubble dynamics

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Sanitation By-Products Used for Lettuce (<i>Lactuca sativa</i>L.) Production: Quantitative Microbial Risk Assessment

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Journal of Geoscience and Environment Protection 2021年第10期9卷 47-61页

作者： Drissa Sangare Loukou Alexis Brou Mariam Sou/Dakoure Nowaki Hijikata Hamma yacouba Lacina coulibaly Naoyuki Funamizu Agronomic Forestry and Environmental Engineering Department University of Man Man C&#244te d’Ivoire Laboratory of Geosciences and Environment University Jean Lorougnon Guede Daloa C&#244te d’Ivoire Water and Sanitation Department International Institute for Water and Environmental Engineering (2iE) Ouagadougou Burkina Faso Division of Environmental Engineering Faculty of Engineering Hokkaido University Kita-ku Sapporo Hokkaido Japan

Sanitation by-products (i.e. greywater, human urine and toilet compost) reuse for agriculture presents an opportunity to enhance food security while overcoming water scarcity and fertilizers issues in developing countries. However, the risks to health from farmers and consumers’ exposure to pathogenic micro-organisms persistent in sanitation by-products has hindered their popularity in these regions. This study was conducted to apply a quantitative microbial risk assessment to estimate the annual risk probability of Salmonella infection associated with these sanitation by-products reuse for lettuce production and explore options for health risk reduction. Risk was performed a Monte Carlo simulation for farmers and consumers. The exposure routes were contaminated soil ingestion, urine/greywater/compost ingestion and lettuce consumption without washing. Results showed that the annual infection risks of Salmonella through ingestion contaminated soil associated with urine and compost were typical scenario: 9.04 × per-person-per-year (pppy) and 2.97 × pppy, respectively, are higher than the WHO benchmark (≤1.0 × pppy). Conversely, those contaminated from gre

关键词： Greywater QMRA Salmonella Toilet Compost Urine

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A Secure and Efficient Data Sharing Scheme for Device-to-Device Communication in LTE-A Network

A Secure and Efficient Data Sharing Scheme for Device-to-Dev...

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作者： Alassane coulibaly 南京理工大学

学位级别：硕士

设备到设备通信(D2D)是指不通过LTE-Advanced(LTE-A)基站(BS)应用的用户之间的直接通信,它提供了许多优势,如更高的吞吐量,频谱效率,降低延迟等。尽管有这些明显的优势,该技术仍面临着许多安全问题。在本文中,我们提出了用于LTE-Advance... 详细信息

设备到设备通信(D2D)是指不通过LTE-Advanced(LTE-A)基站(BS)应用的用户之间的直接通信,它提供了许多优势,如更高的吞吐量,频谱效率,降低延迟等。尽管有这些明显的优势,该技术仍面临着许多安全问题。在本文中,我们提出了用于LTE-Advanced的用户设备之间的D2D通信中的安全数据共享协议。该协议基于椭圆曲线群上的无证书数字签名和签密方案。其思想是,一个通过D2D服务访问数据的用户向传统蜂窝网络的基站(eNB)发送请求,eNB认证用户并将消息转发给检测用户能够共享数据的网关。然后,可信机构(这里是eNB)向两个用户发送通知消息以开始数据传输过程。基于无证书数字签名方案的用户认证和注册阶段确保了用户的隐私受保护以及数据不可抵赖性。基于数据传输的签密保证了数据的机密性,完整性并使传输更加简单。本文出的协议的优点是双重安全性,协议的分析表明了协议对恶意攻击和仿真,的抵抗力以及计算成本的效率。

关键词：安全性数据共享 D2D LTE-A

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Participatory forest management in Burkina Faso: Members' perception of performance

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Journal of Forestry Research 2014年第3期25卷 637-646页

作者： Pascaline coulibaly-Lingani Mulualem Tigabu Patrice Savadogo Per-Christer Oden Centre National de la Recherche Scientifique et Technologique Institut de l’Environnement et de Recherches Agricoles Departement Produc-tions Forestieres 03 BP 7047 0uagadougou 03 Burkina Faso World Agroforestry Centre & International Crop Research Institute for the Semi-Arid Tropics ICRAF-ICRISAT West and Central Africa Swedish University of Agricultural Sciences Faculty of Forest Scienc-es Southern Swedish Forest Research Centre P.0.Box 49 SE-230 53 Alnarp Sweden

This study examines variations in the performance of partic-ipatory forest management programs among four forest management groups (FMGs) in southern Burkina Faso, and assesses the factors that influence their members’ perceptions of performance through a house-hold survey of 216 members. Variations in performance scores among the FMGs were analyzed through multivariate analysis of variance while multinomial regression analysis was used to identify factors that influ-ence their perception of the performance. The results reveal significant differences in performance scores among FMGs. Members of some FMGs perceived that the participatory forest management program ena-bled them to get benefits from the sale of fuelwood while performance scores in the forest conservation and decision-making processes is gener-ally poor. The score for economic performance of FMGs in turn was related to better access to roads and markets. Group size tended to en-hance economic performance via its strong influence on annual fuelwood harvest, while the resource base appeared to be inconsequential. Mem-bers of the forest management groups perceived that large group size and group heterogeneity, particularly in terms of ethnicity, as well as knowledge and awareness of problems related to the forest environment have no influence on the performance of their respective groups. For rural communities to have a favorable disposition toward sustainable forest management, differences in member understanding of collective actions and their impact before and during the implementation of partic-ipatory forest management programs should be considered.

关键词： Common-pool resources Collective action Sustainableforest management West Africa

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