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International Journal of Geosciences 2017年第2期8卷 189-204页

作者： N’Guessan nestor Houssou Marc Ephrem Allialy Fossou Jean-Luc Hervé Kouadio Allou Gnanzou Geology of Basement and Metallogeny Laboratory (GBML) Training and Research Unit of Earth Sciences and Mining Re-sources University of Felix HOUPHOUET-BOIGNY Abidjan-Cocody Cote d’Ivoire

Located in the southwestern of the Oume-Fettekro greenstone belt, the Agbahou gold deposit is controlled by structural factors. Geophysics, teledetection and core data suggest the presence of NE and NW faults. However, the NE-faults define two major shear zones (ATZ: Agbahou Tectonic Zone and WTZ: West Tectonic Zone) that control the Agbahou gold mineralization. These first order structures are subparallel to the regional tectonic grain mostly north-east oriented. They seem to respectively develop on the both arms (eastern and western) of an anticline moderately plunging ~25° towards northeast. Each shear-zone contains several second-order shear-zones or lenses of variable direction and of 50° - 80° dip. NW-faults however correspond to strike-slip faults and their development should be related to transcurrent tectonics. They acted as control channels on the distribution of gold mineralizations. The ductile-brittle character of shear-zones favored the ascent of hydrothermal fluids and the formation of multiple auriferous quartz veins: veins Type IIa and veins Type IIb relating respectively to the shear-veins and extensional veins. However, Agbahou also shows the existence of a disseminated sulphides-bearing mineralization within host-rocks. At Agbahou, the precipitation of gold probably occurred in a post to late ductile-brittle deformation period.

关键词： Gold-Bearing Mineralization Structural Control Birimian Agbahou Ivory Coast

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ASTRO橡木托盘

国际纺织品流行趋势 2017年第4期 240-241页

作者： nestor Campos 高红 NORMANN COPENHAGEN

西班牙设计师nestor Campos创造了一系列的橡木托盘，共有五种不同的尺寸。托盘可以用不同的方式组合和堆放。每一个托盘都有其独特的形状，使这个系列的视觉力动感十足。

关键词：托盘橡木设计师西班牙组合和动感

Productivity of cotton and sorghum in an agroforestry system of shea trees(Vitellaria paradoxa gaertn)in northern Benin

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Natural Science 2013年第2期5卷 207-213页

作者： Césaire Paul Gnanglè Charlemagne Gbemavo Kouèssi Aihou Romain GlèlèKakai nestor Sokpon National Institute of Agricultural Research of Benin Central Agricultural Research CentreForest Research ProgrammeSavèBenin School of Agricultural Sciences University of AbomeyCotonouBenin School of Agriculture University of ParakouParakouBenin

This study evaluates the productivity of cotton and sorghum in a shea-based agroforestry system in northernBenin. Tomboutou and Gounarou villages were respectively selected in the shea parklands of Bembèrèkè and Kandi. Within each parkland and village, three classes of tree crown diameter for shea trees (4 -8 m, 8 -10 mand <10 m), were defined after the inventory phase. In each class of crown diameter, three trees intercropped with cotton and sorghum were randomly selected among the 18 to 21 farms in each of the two village territories. The crops were planted in accordance with the technical procedures recommended by the national agricultural extension service. The following data was collected for sorghum and cotton on1 m2area under the crown and outside the crown, in the four cardinal directions of each sample tree: crop height, fresh biomass per crop and buds per cotton plant. Data analysis revealed a very significant difference in the variables (height of sorghum and cotton, biomass of cotton and sorghum, number cotton buds) between the areas under the crown and those outside the crown (P < 0.01). The productivity variables for sorghum, i.e., average plant height and average biomass, dropped by 9.75% and 29.31%, respectively, when planted under the crown. Cotton under the crown was 6.58% shorter compared to plants outside the crown. Average bud production and average fresh biomass for cotton plants was 13.06% and 36.06% less, respectively, when planted under the crown of shea trees.

关键词： Ecophysiology Productivity Agrosystem Cotton Sorghum Shea Tree Shade-Tree Management Benin

Influence of Post-Harvest Storage Technologies on Weight and Rate Losses and Sensory Profile of Cola Nuts (<i>Cola nitida</i>) Produced in Côte d’Ivoire

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Open Journal of Applied Sciences 2018年第9期8卷 371-380页

作者： Jean-Marc N’Guessan Elisée Yapi Kouakoua nestor Kouakou Kouassi Georges N’Guessan Amani Department of Food Sciences and Technologies Nangui Abrogoua University Abidjan C&ocirc te d’Ivoire

The conservation of cola nuts (Cola nitida) poses a real problem in Côte d’Ivoire because of the post-harvest losses. The objective of this study was to evaluate the impact of post-harvest technologies on organoleptic and physical properties of cola nut during storage. A biopesticide, glucose syrup and biopesticide + glucose syrup were applied to fresh cola nuts before conditioning and kept at 28°C for 6 weeks. Physicochemical and sensory analyses were performed to check the quality of the nuts during storage. The results showed that the biopesticide keep cola nuts better than the others methods with only 11.66% ± 3.04% and 13.66% ± 3.95% of loss rates for white and red cola nuts respectively. Cola nuts treated with bio-pesticide retain significantly their freshness with 62.00% ± 1.15% of moisture for white nuts and 64.00% ± 2.00% of moisture for red nuts compared to those treated with glucose syrup and bio-pesticide + glucose syrup (56.66% ± 1.15%). Cola nuts treated with biopesticide have a better acceptability compared to those subjected to others treatments. The use of biopesticide for the storage of cola nuts minimizes the losses and maintains the quality whatever the type of cola.

关键词： Cola nitida Storage Post-Harvest Losses Biopesticide Glucose Syrup Quality

Impacts of Field Harvesting and Conservation Practices on the Physical Quality of Yam “Kponan” (Dioscorea cayenensis-rotundata) of Côte D’Ivoire

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Open Journal of Applied Sciences 2022年第12期12卷 1979-1994页

作者： Yapo Hypolithe Kouadio Kouakou nestor Kouassi Daouda Nimaga Yao Denis N’dri N’Guessan Georges Amani Laboratory of Food Biochemistry and Technology of Tropical Products Department of Food Science and Technology NANGUI ABROGOUA University Abidjan C&ocirc te D’Ivoire Swiss Center for Scientific Research in Cô te d’Ivoire (CSRS-CI) Abidjan C&ocirc te D’Ivoire Agronomic Forestry and Environmental Engineering Department University of Man Man C&ocirc te D’Ivoire

Yam “Kponan” (Dioscorea cayenensis-rotundata) is a popular staple food in Côte d’Ivoire. However, its rapid decay during conservation prevents regular supply of markets. The objective of this study was therefore to assess the impact of field cultivation and conservation practices on some physical quality parameters of “Kponan”. To this end, “Kponan” yam from three production areas (Bondoukou, Bouna, Kouassi-Kouassikro) was cultivated in each area. At maturity, physical parameters of yams at harvest and after 3 months of storage in field were analyzed. The results showed that injury was the most significant deterioration in yam harvest. The rate of injured yams was highest for hoe-harvested in Kouassi-Kouassikro area (16.67% - 22.22%) regardless of the origin of the cuttings. The main damage observed after the 3 months of storage was rots (22.86% - 60.00%) and weight loss (8.57% - 42.86%). However, yams stored in pits in Bouna zone had less damage (40% - 48.87%) than those stored under straw huts in Bondoukou locality (100%) and at shade under a tree in Kouassi-Kouassikro area (100%). In conclusion, the physical quality of “Kponan” in field is most affected by abusive use of herbicides during weeding and clearing, hoe harvesting and storage in the shade under a tree.

关键词： “Kponan” Yam Post-Harvest Loss Cultivation Practices Conservation Practices Physical Quality

Expression of triggering receptor on myeloid cell 1 and histocompatibility complex molecules in sepsis and major abdominal surgery

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World Journal of Gastroenterology 2005年第47期11卷 7473-7479页

作者： nestor González-Roldán Eduardo Ferat-Osorio Rosalía Aduna-Vicente Isabel Wong-Baeza Noemí Esquivel-Callejas Horacio Astudillo-de la Vega Patricio Sánchez-Fernández Lourdes Arriaga-Pizano Miguel Angel Villasís-Keever Constantino López-Macías Armando Isibasi Unidad de Investigación Médica en Inmunoquímica Hospital de EspecialidadesCentro Médico Nacional Siglo ⅩⅪInstituto Mexicano del Seguro Social (IMSS)México Laboratorio de Oncología Molecular Unidad de Investigación Médica en Enfermedades OncológicasHospital de OncologíaCentro Médico Nacional Siglo ⅩⅪIMSSMéxico Servicio de Gastrocirugía Hospital de EspecialidadesCentro Médico Nacional Siglo ⅩⅪIMSSMéxico Unidad de Investigación en Epidemiología Clínica Hospital de PediatríaCentro Médico Nacional Siglo ⅩⅪIMSSMéxico

AIM： To evaluate the surface expression of triggering receptor on myeloid cell 1 （TREM-1）, class Ⅱ major histocompatibility complex molecules （HLA-DR）, and the expression of the splicing variant （svTREH-1） of TREM-1 in septic patients and those subjected to major abdominal surgery. METHODS： Using flow cytometry, we examined the surface expression of TREM-1 and HLA-DR in peripheral blood monocytes from 11 septic patients, 7 elective gastrointestinal surgical patients, and 10 healthy volunteers, svTREM-1 levels were analyzed by RT-PCR. RESULTS： Basal expression of TREM-1 and HLA- DR in healthy volunteers was 35.91±14.75 MFI and 75.8±18.3%, respectively. In septic patients, TREM-1 expression was 59.9±23.9 MFI and HLA-DR expression was 44.39±20.25%, with a significant difference between healthy and septic groups （P〈0.05） for both molecules. In the surgical patients, TREM-1 and HLA-DR expressions were 56.8±20.85 HFI and 71±13.8% before surgery and 72.65±29.92 MFI and 72.82±22.55% after surgery. TREM-1 expression was significantly different （P = 0.0087） between the samples before and after surgery and svTREM-1 expression was 0.8590± 0.1451 MF1, 0.8820±0.1460 MF1, and 2.210±0.7873 MF1 in the healthy, surgical （after surgery） and septic groups, respectively. There was a significant difference （P = 0.048） in svTREM-1 expression between the healthy and surgical groups and the septic group. CONCLUSION： TREM-1 expression is increased during systemic inflammatory conditions such as sepsis and the postoperative phase. Simultaneous low expression of HLA-DR molecules correlates with the severity of illness and increases susceptibility to infection. Additionally, TREM-1 expression is distinctly different in surgical patients at different stages of the inflammatory response before and after surgery. Thus, surface TREM-1 appears to be an endogenous signal during the course of the inflammatory response, svTREM-1 expression is significantly increased during sepsis, appearing to be a

关键词： TRFM-1 HLA-DR SIRS CARS Sepsis

Thermal and Physicochemical Characterization of Fibers from Coffee Hulls as Filler for Linear Low Density Polyethylene (LLDPE)

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Advances in Materials Physics and Chemistry 2021年第10期11卷 155-166页

作者： Ahmat Tom Abel Tame Paul nestor Djomou Djonga Bakary Tigana Djonse Justin Eugenie Géraldine Nga Abena Department of Energy Engineering University Institute of Technology University of Ngaoundere Ngaoundere Cameroon Department of Chemistry Faculty of Science University of Yaoundé I Yaoundé Cameroon Department of Textile and Leather Engineering National Advanced School of Engineering of Maroua Maroua Cameroon Department of Chemistry Faculty of Science University of Maroua Maroua Cameroon Department of Physics Faculty of Science University of Yaoundé I Yaoundé Cameroon

This work presents the thermal, physical and chemical characterization of Coffee canephora, from littoral region of Cameroon, for their use as reinforcement for polymeric materials. The infrared of coffee hulls shows the presence of a large peak intensity at 3299 cm-1 that can be attributed to O-H stretching group of alcohol (cellulose content in coffee pulp). The intensity 2926 cm-1 can be attributed to C-H stretching group of alkanes or the vibration of methoxy group of lignin. Thermo gravimetric analysis shows that around 440°C, the biomass has been completely consumed;the temperature profiles show a peak at 86°C that could correspond to the loss of water as evaporation at a percentage of 8%;the peak at 321°C is accompanied by a water loss of 64.50%; this temperature is assimilated to the degradation of hemicelluloses;the temperature range from 321°C to 401°C is accompanied by a loss of mass of 22.80%, which would be due to the degradation of cellulose. SEM images of the surface of raw coffee hulls, coffee hulls treated with caustic soda respectively clearly reveal gaps between the fibers. The results showed that the incorporation of coffee hulls fiber in LLDPE matrix might result in composites with suitable property application for various industrial fields

关键词： Characterization Coffee Hulls Filler LLDPE Physicochemical and Thermal

Microclimatic Experimentation Applied to Insulating Horizontal Coverage in Mexicali, Mexico

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Journal of Environmental Science and Engineering(A) 2013年第9期2卷 561-568页

作者： Zalia Haro-Rincon nestor Santillfin-Sot1 Rafael Garcia-Cueto Sara Ojeda-Benltez AlejandroLambert-Arista Institute of Engineering Autonomous University of Baja California Mexicali 21280 Mexico Faculty of Engineering Autonomous University of Baja California Mexicali 21280 Mexico

The thermal response of hedges alters the urban climate, resulting in energy and comfort affectations that impact city dwellers, so the aim of this study is to analyze the energy fluxes of urban horizontal coverage, especially expanded polystyrene waterproofed with elastomeric paint in the city of Mexicali, Baja California, located northwest of Mexico. The experiment was realized on summer of 2011 and 2012 by using four components radiometric sensor, eddy covariance equipment, which was possible to analyze the behavior and intensities of heat fluxes using the model Q＊ = QE ＋ QG ＋ QH ＋ QF ＋ QD. The results show that in both campaigns the sensible heat flux exceeds the net radiation, in 2011 the net radiation was 31.41 W/mE and sensible heat flux of 74.9 W/m2, in 2012 resulted 43.46 W/m2 and 87.32 W/mE, respectively. This additional heat flux is attributed to the thermal influence of the air conditioning units, which changes the energy balance model to Q＊ = QH ＋ QF ＋ QD. With the results arise the need for experimentation on a larger scale in which it is possible to model the flow in housing development. The knowledge of the energy balance model will help to propose materials that minimize the thermal impact to the city of Mexicali.

关键词： Energy fluxes coating insulating coverage thermal impact urban climatology.

Low Density Linear Polyethylene Reinforced with Alkali and MAPE Treated Fibers from Coffee Pulp

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Open Journal of Composite Materials 2021年第4期11卷 94-110页

In this work fibers derived from coffee, hulls have been incorporated into Linear Low Density Polyethylene (LLDPE). The influence of the filler content on the thermal and physicomechanical properties of the composites obtained was assessed. The results showed that the incorporation of fibers was able to improve the thermostability of LLDPE/Coffee hulls fibers;comparing the treated fiber composite with untreated fiber composites, the chemical treatment reduces by 58.3% the water absorption, while increasing the elongation and tensile strength by about 48% and 17% respectively. Moreover, due to better interfacial interaction induced by MAPE, the corresponding composite exhibited better properties compared to the untreated fiber composite. Results are indicative of the fact that both mercerization and MAPE (coupling agent) have significant positive effects on the fiber-matrix interaction in terms of adhesion, wetting and dispersion, this treatment produced a better fiber distribution and consequently a more uniform composite morphology without voids and gaps between the fibers and the matrix, allowing the possibility to use higher fiber contents (up to 30% wt.) with acceptable mechanical properties.

关键词： Fiber from Coffee Fiber Hull Linear Low Density Polyethylene Composite MAPE

Tracing the Origin of Metasedimentary Rocks in the Tortiya Diamond Region (Northern Côte d’Ivoire)

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Open Journal of Geology 2023年第12期13卷 1271-1290页

作者： Tessia Miryam Adingra Martial Pohn Koffi Koffi Yao Augustin Houssou nestor Allialy Marc Ephrem Kouassi Brice Roland Félix Houphouë t-Boigny University of Abidjan Abidjan C&#244te d’Ivoire Peleforo Gon Coulibaly University of Korhogo Korhogo C&#244te d’Ivoire

Metasedimentary rocks from the Tortiya diamondiferous region (northern Côte d’Ivoire), located in the Ivorian Paleoproterozoic domain, were analyzed with the aim of identifying their different petrographic facies, constraining their provenance and tectonic environment, and assessing the effects of sedimentary processes and weathering on the signature of their source rocks. These analyses were carried out with a view to helping trace the origin of Tortiya diamonds, which are generally hosted in these metasediments. Major and trace element geochemical data reveal that these samples are characterized by negative Eu anomaly values, low to moderate weathering index values and a high compositional variation index (ICV). These results led to the definition of these metasediments as immature sediments potentially originating from rapid erosion and sediment deposition from local sources. Chemical alteration index (CIA) values and Al2O3-(CaO* + Na2O)-K2O composition space suggest low to medium degrees of meteoric alteration of the parent rock. These rocks therefore show poorly differentiated compositions from the parent rock and poor sediment sorting. Geochemical data and ratios of immobile elements, e.g. Al2O3/TiO2, Cr/Th, Eu/Eu* and (La/Yb)n, indicate that the clastic materials derive mainly from felsic to intermediate sources. Sedimentary tectonic discrimination diagrams demonstrate that most of the samples from the Tortiya diamond-bearing region were deposited on an active continental margin or in a continental arc-island environment. Although this region has a long history of diamond mining, its petrogenesis remains unresolved, and this petrogeochemical work is a step towards initiating scientific research in the area.

关键词： Petrography Geochemistry Metasediments Tortiya Ivory Coast