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Journal of Sustainable Bioenergy Systems 2020年第2期10卷 52-61页

作者： Sokhna khadidiatou Ben thiam Alassane Ba Mamadou Babacar Ndiaye Issa Diagne Youssou Traore Seydou Faye Cheikh thiam Pape Touty Traore Ablaye Fame Gregoire Sissoko Ecole Polytechnique de Thiès (EPT) Thiès Senegal University Institute of Technology University of Thiès Thiès Senegal Laboratory of Semiconductors and Solar Energy Physics Department Faculty of Science and Technology University Cheikh Anta Diop Dakar Senegal

Convective heat transfer coefficients, materializing exchanges between solid wall (here typha) and its environment, influence its behavior under excitation pulse. Temperature of wall and its density of flow vary with these coefficients according to its thickness (in depth). This study therefore focuses on the evaluation of convective heat transfer coefficient on front face and the optimal insulation thickness.

关键词： Typha Heat Transfer Coefficients Spectroscopy Optimal Insulation Thickness

Study at Two Dimensions of Thermal Transfer through a Fibers Panel Subjected to Climatic Constraints in Dynamic Frequency Regulations Established

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Energy and Power Engineering 2020年第5期12卷 135-142页

作者： Mohamed Sidya Ould Brahim Issa Diagne Mamadou Babacar Ndiaye Youssou Traore Seydou Faye Cheikh thiam Pape Touty Traore Ablaye Fame Sokhna khadidiatou Ben thiam Gregoire Sissoko Laboratory of Semiconductors and Solar Energy Physics Department Faculty of Science and Technology University Cheikh Anta Diop Dakar Senegal University Institute of Technology University of Thiès Thiès Senegal

From resolution of two-dimensional equation of heat in dynamic frequency regime, we have plotted evolution curves of temperature according to depth of material or in lateral direction. They will allow us to evaluate thermal behavior of towed material. Aim of study is to use fibers as a thermal insulating material by proposing a method for determining effective thermal insulation layer in dynamic frequency regime.

关键词： Thermal Transfer Heat Exchange Coefficient Frequency Dynamic Regime Fibers

Validation of a Capillary Electrophoresis Method for Analyzing Chlorphenamine Maleate-Based Drugs Using the Accuracy Profile Approach

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American Journal of Analytical Chemistry 2016年第5期7卷 452-459页

作者： Serigne Omar Sarr Eddy Kevin Senan Ouendo Thierno Mouhamed Wane El Hadji Assane Diop Diop Amadou Serigne Momar Ndiaye Rokhaya Gueye khadidiatou thiam Aminata Sarr Ousmane Niass Djibril Fall Bara Ndiaye Serge Rudaz Yérim Mbagnick Diop Laboratory of Analytical Chemistry and Food Sciences Cheikh Anta Diop University Dakar Senegal National Medicines Control Laboratory Ministry of Health Dakar Senegal Laboratory of Pharmaceutical Analytical Chemistry School of Pharmacy Geneva Switzerland Laboratory of Organic and Therapeutic Chemistry Cheikh Anta Diop University Dakar Senegal

This study aimed at validating an analytical method, using the accuracy profile approach, for the assay of chlorphenamine maleate by capillary electrophoresis. The validation was done using concentrations ranging between 75% and 125% of the target concentration of 600 mg/ml. Validation standards were prepared separately in triplicate for each series. Studied validation criteria were selectivity, linearity, trueness, precision (repeatability and intermediate precision), accuracy and limits of detection and quantification. The method was selective, with recoveries ranging between 99.55% and 99.84%. The relative standard deviations of repeatability and intermediate precision were <5%. The accuracy profile confirmed the performance of the assay method between 75% and 100% of the target concentration of 600 mg/ml. The detection and quantification limits were 5 mg/l and 15 mg/l respectively. This ecological and economical method was applied to identify and quantify chlorphenamine maleate in 3 samples of chlorphenamine maleate-based drugs provided by the Senegalese National Medicines Control Laboratory. All analyzed samples were in accordance with official standards.

关键词： Analytical Validation Chlorphenamine Maleate Quality Capillary Electrophoresis CEB Senegal

Coronary Angioplasty in a Low Income Sub-Saharan Country: Situational Analysis

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World Journal of Cardiovascular Diseases 2018年第12期8卷 539-544页

作者： Mouhamed Cherif Mboup Djibril Marie Ba Modou Jobe Massamba thiam khadidiatou Dia Pape Diadie Fall Hopital Principal de Dakar Dakar Senegal Military Hospital of Ouakam Dakar Senegal Clinique Du Golf Dakar Senegal

Introduction: Coronary angioplasty is not widely conducted in sub-Saharan Africa in general and Senegal in particular. The objective of this work was to describe the indications, techniques, results and difficulties of coronary angioplasty in Senegal. Patients and Methods: We prospectively included all patients who underwent coronary angioplasty between July 2012 and November 2014. We evaluated the clinical characteristics, techniques used, and the peri-procedural complications. Results: 110 coronary angioplasties were performed at the cardiac catheterisation unit of the Clinique du Golf in Dakar. The average age of patients was 60.41 ± 10.93 years. A male predominance was noted with a sex ratio of 6.3. Hypertension was found in 57% of patients. The principal indications for coronary angioplasty were for the management of acute coronary syndromes with or without ST elevation, in 29 and 39 patients respectively. The femoral artery was the puncture site in 104 patients. The lesions treated were type A/B1 or B2/C in 53 and 57 cases respectively. The success rates of coronary angioplasties and 30-day mortality were 91% and 0.9% respectively. Conclusion: In sub-Saharan Africa, Senegal in particular, the practice of coronary angioplasty is low. Indeed, many factors linked to socioeconomic status limit the development of coronary angioplasty in Senegal.

关键词： Coronary Angioplasty Acute Coronary Syndrome Interventional Cardiology

Incidental Finding of a Fenestrated Vertebrobasilar Junction Aneurysm

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Forensic Medicine and Anatomy Research 2022年第2期10卷 44-49页

作者： Youssoupha Kassé Géraud Léra Akpo Ibrahima Niang khadidiatou Diouf Ka Rokhaya Diagne Ndèye Bigué Mar Khaoulah Talhaoui Aminata Mbaye Papa Malick Dibor Diouf Mame Coumba Fall Sokhna BaDiop Radiology and Medical Imaging Department of FANN Hospital Dakar Senegal Neurology Department of FANN Hospital Dakar Senegal Anatomy Laboratory of Health Sciences Department of Iba Der Thiam University Thies Senegal

Basilar artery fenestration is a rare anatomical variation resulting from the failed fusion of the two vertebral arteries during embryonic life. In order of frequency, it is the second most common location of vascular fenestrations after the anterior communicating artery. Vertebrobasilar junction aneurysms are uncommon but often associated with basilar artery fenestration. We report the case of a fenestrated vertebrobasilar junction saccular aneurysm in a 57-year-old woman. The diagnosis was incidentally made on CT angiography which found the anatomical variant and the aneurysm. The radiological features illustrating this association are detailed here and a brief discussion of its pathogenesis and management was made. Vertebrobasilar junction aneurysms are rare and their presence should suggest an associated basilar fenestration.

关键词： Basilar Artery Fenestration Vertebrobasilar Aneurysm CT Brain Angiography