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Construction Technology of Biodigesters in Senegal

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energy and Power engineering 2023年第10期15卷 329-339页

作者： Momath Ndiaye Madialène Sene Goumbo Ndiaye ed Léon Sadio UFR Fundamental Sciences and engineering University of Sine Saloum El Hadj Ibrahima NIASS Kaolack Senegal SeN’eAU Dakar Senegal Renewable and Cold energies University of Sine Saloum El Hadj Ibrahima NIASS Kaolack Senegal

Faced with the depletion of fossil energy resources and given the current context of the fight against climate change, Renewable energies (Re) represent an increasingly growing challenge. Of all these energies, those resulting from the biomethanization of biomass now provide an opportunity in the world of farmers and breeders. The treatment of agro-pastoral residues by anaerobic digestion has been the subject of renewed interest in recent years, thanks in particular to the production of energy from biomass, not to mention the production of fertilizers from effluents. expelled from the digesters. This method of transformation offers many environmental, socio-economic and agricultural interests. Indeed, the biogas obtained from organic matter allows, among other things, to cook, light houses, and produce.electricity and heat. The objective of this study is to compare the construction techniques and costs of the biodigester models that exist in Senegal. There are many biodigesters, the choice of an installation depends on the available space and the nature of the soil. Several types of biodigester technologies are installed in Senegal. The GGC 2047 fixed dome, the RMB geomembrane and the BeG geomembrane. First we will describe the construction techniques of the modified GGC model fixed dome biodigester, then of the RMB model geomembrane and finally of the BeG model geomembrane.

关键词： Biodigester Biomass Fixed Dome Geomembrane Renewables energies

The Impact of electronic Supply Chain Management Usage on Firm’s Performance

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International Journal of Communications, Network and System Sciences 2016年第6期9卷 280-293页

作者： Dmaithan Almajali Khalid Mansour Ra’ed Masa’deh Mahmoud Maqableh Faculty of economics and Administrative Sciences Zarqa University Zarqa Jordan School of Business The University of Jordan Amman Jordan

This study investigates the status of e-SCM and performance among Jordanian manufacturing sector. The objective of this study is to analyze the impact of trust and communication on the e-SCM usage. Moreover, the study investigates the effect of the trust and communication on the firm’s performance while the e-SCM usage is used as a mediating factor on firm’s performance. The proposed research model was validated by distributing 250 survey questionnaires to the manufacturing sector in Jordan. Structural equation modelling (SeM) technique was used to analyze the results. One of the main limitations of this study was that the results could not be universal since the study was limited to Jordan. We discussed the implications of our results for research and practice.

关键词： Firm’s Performance Communication Trust electronic Supply Chain Management

A Finite.element Approximation of the Stokes equations

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World Journal of Mechanics 2011年第6期1卷 299-305页

作者： Samy Alami Abdeslam elakkad Jawad el-Mekaoui Ahmed elkhalfi mohammed el Hammoumi 不详

In this work, a numerical solution of the incompressible Stokes equations is proposed. The method suggested is based on an algorithm of discretization by the unstable of Q1 – P0 velocity/pressure ?nite.element approximation. It is shown that the inf-sup stability constant is O(h) in two dimensions and O( h2) in three dimensions. The basic tool in the analysis is the method of modi?ed equations which is applied to ?nite difference representations of the underlying ?nite.element equations. In order to evaluate the performance of the method, the numerical results are compared with some previously published works or with others coming from commercial code like Adina system.

关键词： Stokes equations Finite element Method Iterative Solvers Adina System

The impact of emergency department length of stay on the outcomes of trauma patients requiring hospitalization: a retrospective observational study

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World Journal of emergency Medicine 2023年第2期14卷 96-105页

作者： Ahmed Faidh Ramzee Ayman el-Menyar mohammad Asim Ahad Kanbar Khalid Ahmed Bahaa Daoud Saji Mathradikkal Ahmad Kloub Hassan Al-Thani Sandro Rizoli Trauma Surgery Section Hamad General Hospital(HGH)Doha P.O Box 3050Qatar Clinical Research Trauma&Vascular Surgery SectionHGHDoha P.O Box 3050Qatar Clinical Medicine Weill Cornell Medical CollegeDoha P.O Box 3050Qatar

BACKGROUND: We aimed to explore the impact of the emergency department length of stay(edLOS) on the outcome of trauma ***: A retrospective study was conducted on all trauma patients requiring hospitalization between 2015 and 2019. Patients were categorized into 4 groups based on the edLOS(24 h). Data were analyzed using Chi-square test(categorical variables), Student’s t-test(continuous variables), correlation coefficient, analysis of variance and multivariate logistic regression analysis for identifying predictors of short edLOS and hospital ***: The study involved 7,026 patients with a mean age of 32.1±15.6 years. Onefifth of patients had a short edLOS(er le.el trauma team T1 activation(TTA-1), higher Injury Severity Score(ISS), higher shock index(SI), and more head injuries than the other groups(P=0.001). Patients with an edLOS >24 h were older(P=0.001) and had more comorbidities(P=0.001) and fewer deaths(P=0.001). Multivariate regression analysis showed that the predictors of short edLOS were female gender, GCS, SI, hemoglobin le.el, ISS, and blood transfusion. The predictors of mortality were TTA-1(odds ratio [OR]=4.081, 95%CI: 2.364–7.045), head injury(OR=3.920, 95%CI: 2.413–6.368), blood transfusion(OR=2.773, 95%CI: 1.668–4.609), SI(OR=2.132, 95%CI: 1.364–3.332), ISS(OR=1.077, 95%CI: 1.057–1.096), and age(OR=1.040, 95%CI: 1.026–1.054). CONCLUSIONS: Patients with shorter edLOS had different baseline characteristics and hospital outcomes compared with patients with longer edLOS. Patients with prolonged edLOS had better outcomes;however, the burden of prolonged boarding in the ed needs further elaboration.

关键词： emergency department Length of stay Trauma Management Outcomes Trauma activation criteria

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红细胞生成素

国际输血及血液学杂志 1989年第5期12卷 296-297页

作者： Zanjani ed Asccnsao JL 金任天

红细胞生成素(erythropoicun,ep)已被确认为主要造血调节因子。1977年人ep被纯化,不久人ep基因被克降和表达。重组人ep的结构和生物特性与天然ep无显著不同。人ep为酸性糖蛋白,分子量约34.000,其蛋白质部份包含166个氨基酸残基,其糖组... 详细信息

红细胞生成素(erythropoicun,ep)已被确认为主要造血调节因子。1977年人ep被纯化,不久人ep基因被克降和表达。重组人ep的结构和生物特性与天然ep无显著不同。人ep为酸性糖蛋白,分子量约34.000,其蛋白质部份包含166个氨基酸残基,其糖组成部份,特别是唾液酸部份,与ep生物活性的发挥有重要关系,失去唾液酸部份的ep迅速被肝从血内清除。ep不能通过啮齿类和羊的胎盘,但初生鼠可经哺乳而获得ep。 ep促原始红细胞增殖,分化和成熟。较原始的红系细胞(如BFU-e)不仅受ep控制,也接受IL-3,GM-CSF等其他造血因子的影响,而稍成熟一些的原始红细胞(如CFU-e)主要受ep控

关键词：原始红细胞成熟网织红细胞红细胞数红细胞增多症

Study on the packed volume and the void ratio of idealized human red blood cells using a ?nite-discrete.element method

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Applied Mathematics and Mechanics(english edition) 2019年第5期40卷 737-750页

作者： Dong XU Chunning JI A.MUNJIZA e.KALIVIOTIS e.AVITAL J.WILLAMS State Key Laboratory of Hydraulic engineering Simulation and Safety Tianjin University School of engineering & Material Science Queen Mary University of London Faculty of engineering and Technology Cyprus University of Technology

Numerical simulations are performed to examine the packing behavior of human red blood cells(RBCs). A combined ?nite-discrete.element method(FDeM) is utilized, in which the RBCs are modeled as no-friction and no-adhesion solid bodies. The packed volume and the void ratio of a large number of randomly packed RBCs are clari?ed,and the effects of the RBC shape, the mesh size, the cell number, and the container size are investigated. The results show that the packed human RBCs with normal shape have a void ratio of 28.45%, which is slightly higher than that of the ?at or thick cells used in this study. Such information is bene?cial to the further understanding on the geometric features of human RBCs and the research on RBC simulations.

关键词： red blood cell (RBC) void ratio packed volume discrete element method

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Geophysical Contribution to the Determination of the Limit between Laayoune and Foum el Oued Aquifers, Origin of Supply Sources of Oued Sakia el Hamra, Laayoune Province, Morocco

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International Journal of Geosciences 2019年第11期10卷 1008-1035页

作者： moha.ed Chibout Anasse Benslimane moha.ed el Mokhtar Fatima Zahra Faqihi Sidi Mokhtar el Kanti Ahmed Ntarmouchant Laboratory of Geodynamics and Natural Resources (LGRN) Faculty of Sciences Dhar Mahraz Sidi Mohamed Ben Abdellah University Fez Morocco Laboratory of Geosciences and Natural Resources Faculty of Sciences University Ibn Tofail Kenitra Morocco. AFRICA GEO-SERVICES Company 33 Offices Al Manar Street Abd Elkarim Khattabi Fez VN Morocco Hydraulic Basin Agency of Sakia el Hamra and Oued ed-Dahab Administrative District Laayoune Morocco

Laayoune and the Foum el Oued aquifers are in hydraulic communication only at the le.el of Oued Saguia el Hamra. The present study has accordingly made use of all the hydrogeological, hydrological, geological and geophysical data that preceded the watershed of Oued Saguia el Hamra in its downstream part. These data are by no means omplementary with the objective of having a better understanding of the boundary line between Laayoune and Foum el Oued aquifers and the origin of feeding the sources of Oued Saguia el Hamra. This study will focus only on the previous geophysical studies where a reinterpretation of electrical soundings has proved useful as a result of the recent well-logging results. It makes it possible to highlight the presence of a significant rise in the truncated marly substratum of Oued Saguia el Hamra and depressions (left and right banks) which could correspond to stream channels or depressed areas. At the le.el of the Wadi bed, there has been a regular immersion of the conductive le.el roofs from east to west towards Foum el Oued favoring the flow of wastewater from the zone and spraying the brackish water sources towards the groundwater of Foum el Oued. In the light of the reinterpretation of electric polls, plus as well as the geophysical surveys by electrical tomography and high definition made at the right and left banks of the Oueed Saguia el-Hamra, it was possible to verify the existence of dry ridge separating the two webs of Laayoune and Foum el Oued and stream channels or depressed areas of the left bank for drainage of brackish water to sources located along Oued Saguia el Hamra. The true resistivity models tomography profiles confirm the presence of the backbone at the left and right banks and the graben of the left bank for underground water drainage of the web Laayoune to sources welling the river Saguia el Hamra. They reveal the presence of a quaternary plio-cover (coastal platform Moghrebian) as being heterogeneous and affected by m

关键词： Laayoun and Faum Al Oued Aquifers Ridge Limit Wastewater Brackish Wa-ter Marl Bedrock Vertical electrical Sounding (SeV) electrical Tomography (eTR)

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低通胀国家的货币政策

In vitro antimicrobial and synergistic effect of essential oil from the red macroalgae Centroceras clavulatum (C. Agardh) Montagne with conventional antibiotics

作者：大卫·e. 阿提格(David e. Altig) 埃德·诺塞尔(ed Nosal)

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Asian Pacific Journal of Tropical Biomedicine 2021年第9期11卷 414-420页

作者： Ahmed Nafis Fatima el Khalloufi Asmae Aknaf Brahim Oudra Najat Marraiki Sarah Al-Rashed Abdallah Melgorban Asad Syed Lahcen Hassani Luísa Custódio Microbiology Health and Environment TeamFaculty of Sciences Chouaïb Doukkali UniversityEl JadidaMorocco Laboratory of Chemistry Modeling and Environmental SciencesPolydisciplinary Faculty of KhouribgaSultan Moulay Slimane University of Beni MellalB.P.:14525000KhouribgaMorocco Polydisciplinary Faculty of Nador University Mohammed FirstBP 30062700NadorMorocco Laboratory of Water Biodiversity and Climate Change.Faculty of Sciences Semlalia MarrakechCadi Ayyad UniversityP.O.Box 239040000MarrakechMorocco Department of Botany and Microbiology College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia Laboratory of Microbial Biotechnologies Agrosciencesand Environment(BioMAgE)Faculty of Sciences Semlalia MarrakechCadi Ayyad UniversityP.O.Box 239040000MarrakechMorocco Center of Marine Sciences Faculty of Sciences and TechnologyUniversity of AlgarveEd.7Campus of Gambelas8005-139 FaroPortugal

Objective:To study the chemical profile,antimicrobial properties,and synergistic effect with known antibiotics of essential oil extracted from the marine red macroalgae Centroceras clavulatum(***)Montagne,collected in ***:The chemical composition of the oil was analyzed by gas chromatography-mass *** oil was evaluated for antibacterial(Pseudomonas aeruginosa,escherichia coli,Bacillus subtilis,Micrococcus luteus,Staphylococcus aureus,and Klebsiella pneumoniae),and antifungal activity(Candida albicans,Candida glabrata,Candida krusei,and Candida parapsilosis),by the disc diffusion *** minimum inhibitory and minimum microbicidal concentrations of the oil were determined,as well as the synergistic effects of its application combined with the antibiotics ciprofloxacin and fluconazole,by the checkerboard ***:Thirty molecules were identified in the essential oil,comprising 96.27%of the total oil *** such as carvacrol(36.06%)were the most abundant compounds,followed by caryophyllene(14.67%),endo-borneol(9.04%),pyroterebic acid(3.23%)and caryophyllene oxide(3.13%).The oil exhibited a moderate antimicrobial activity with inhibition zone diameters ranging from 9.0 to 15.0 *** minimum inhibitory concentration values varied between 0.9 and 14.7 mg/mL,and Bacillus subtilis and escherichia coli were the more sensitive bacteria with 0.9 and 1.9 mg/mL,*** minimum microbicidal concentration values ranged from 0.4 to 14.7 mg/mL.A significant synergic action was observed when the oil was applied in combination with ciprofloxacin and fluconazole,with fractional inhibitory concentration index values ranging from 0.31 to *** was found in 80%of the combinations and a 2 to 16-fold reduction of antibiotics MIC was ***:Our findings suggest that the essential oil of Centroceras clavulatum should be further appraised for its potential use in the management of multi-drug resistant microo

关键词： Macroalgae Centroceras clavulatum(C.Agardh) Antimicrobial potential Microbial drug resistance Marine natural products Synergism with antibiotics