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Comparison between Microwave Infrared Thermography and CO<sub>2</sub>Laser Infrared Thermography in Defect Detection in Applications with CFRP

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Materials Sciences and Applications 2013年第10期4卷 600-605页

作者： Sam-Ang Keo Didier Defer Florin Breaban franck Brachelet Laboratory of Civil Engineering and GeoEnvironment PRES Lille Nord of France Lille France Faculty of Applied Sciences Béthune France Laboratory of Civil Engineering and GeoEnvironment PRES Lille Nord of France Lille France University Institute of Technology of Bethune Béthune France

This paper presents two infrared thermography methods with CO2 Laser excitation and microwave excitation applied to defect detection in CFRP. The tests were conducted with two specimens, one with defect, and another one without defect. On two concrete plates 40 cm× 40 cm× 4.5 cmwere reinforced by CFRP;the defects were made by the absence of adhesive on an area10 cm× 10 cm. The specimens were heated by microwave, generated by a commercial magnetron of 2.45 GHz and guided by a pyramidal horn antenna, with a power of 360 W within 150 s. Another series of the tests was conducted with CO2 Laser, wavelength 10.6 μm, by heating the samples with a power of 300 W within 40 s. An infrared camera sensitive to medium waves in range of 3 - 5 μm, with a detector of 320 × 256 matrix detector in InSb (Indium Antimonide), was used to record the thermograms. As a result, the CO2 Laser excitation is better for the delamination detection in CFRP. This study opens interesting perspectives for inspecting other types of defects in materials sciences;the microwave excitation is suitable for the deep defects in the materials whereas the CO2 Laser excitation is better for the defects near the surface of the materials.

关键词： CFRP Defect Microwave CO2 Laser Infrared Thermography

Gastric emptying evaluation by ultrasound prior colonoscopy:An easy tool following bowel preparation

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World Journal of Gastroenterology 2014年第37期20卷 13591-13598页

作者： Romain Coriat Vanessa Polin Ammar Oudjit franck Henri Marion Dhooge Sarah Leblanc Chantal Delchambre Anouk Esch Tessa Tabouret Maximilien Barret Frédéric Prat Stanislas Chaussade Gastroenterology unit and endoscopy unit Université Paris DescartesSorbonne Paris CitéFaculté de MédecineH?pital CochinAssistance Publique?pitaux de Paris (AP-HP) Radiology Department H?pital CochinAssistance Publique-H?pitaux de Paris (AP-HP) Laboratoires Mayoly Spindler

AIM: To investigate the gastric emptying after bowel preparation to allow general anaesthesia.

关键词： Colonoscopy Preparation Ultrasound Gastric emptying

延长组长7段成岩演化对砂岩致密化发育的影响 ——以鄂尔多斯盆地下寺湾地区为例

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延长组长7段成岩演化对砂岩致密化发育的影响 ——以鄂尔多斯盆地...

作者： Djitieu Kouetcha franck Serdo（方克）西安石油大学

学位级别：硕士

A Framework for Qualifying and Evaluating Smart Grids Approaches: Focus on Multi-Agent Technologies

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Smart Grid and Renewable Energy 2013年第4期4卷 333-347页

作者： Gillian Basso Nicolas Gaud franck Gechter Vincent Hilaire Fabrice Lauri IRTES-SET UTBM Belfort Cedex France.

New needs and emerging societal constraints have put the emphasis on the inadequacy of the actual electrical grid. Indeed, it is impossible, or at least very hard, to 1) integrate renewable energy sources at a great scale within the actual electric grid, 2) enable communications between the various power suppliers and consumers, 3) design several different services that meet the needs of a wide range of end users. A key solution to these issues consists in using Smart Grids (SG). SG can efficiently control power flows by means of Information Technology (IT). Technically, a SG consists of a power system and a bidirectional communication system. Multi-Agent Systems (MAS) constitute a possible technology that can be applied to control and monitor the operation of power grids. Moreover, MAS exhibit distribution, adaptive and intelligent features. The goal of this paper is to propose a framework of qualification and evaluation for comparison SG approaches. First, a set of features of importance for smart grids definition is identified. Then, in a second step, some criteria are given to evaluate the impact of SG on the society. Finally, these features are applied to existing MAS approaches addressing SG in order to understand and compare their different contributions.

关键词： Smart Grids Qualification and Evaluation Multi-Agent Systems

Benin and Western Nigeria Offshore Basins: A Stratigraphic Nomenclature Comparison

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International Journal of Geosciences 2016年第2期7卷 177-188页

作者： Gérard Alfred franck d’Almeida Christophe Kaki James Adejimi Adeoye Department of Earth Sciences University of Abomey-Calavi Cotonou Benin Department of Geology and Mineral Sciences University of Ilorin Ilorin Kwara State Nigeria

The Benin and Western Nigeria Offshore Basins, which are parts of an extensive basin called the Dahomey (Benin) Embayment, were formed during the Early Cretaceous under similar tectonic conditions and continental sedimentary environments. Based mainly on available lithological, biostratigraphic and paleoenvironmental data, this paper summarizes the stratigraphic succession of theses basins and attempts a comparison of these stratigraphic nomenclatures. The bulk of data shows that sedimentation begins with terrestrial at the base, passes through shallow marine, deep marine (with restrictive bottom circulation) and ends with open deep marine conditions. The stratigraphy of the Offshore Benin Basin was established later and considering lithological and paleontological similarities with formations of various southern Nigeria basins, the stratigraphic chart adopted for this basin was a mixed variant of various Southern Nigerian basins nomenclatures. For the first time, a correlation of stratigraphic charts of each basins and a schematic cross section showing their lithostratigraphic units, especially the Cretaceous-Paleocene interval which is petroliferous, are proposed. The study shows that the nomenclature adopted in Benin Republic must be revised by using type section/locality names for some particular Formations and widely accepted Formations names of Nigeria for the others. This will permit to avoid confusions as it is presently the case for the name “Afowo Formation” representing a Cretaceous sequence in Nigeria and which is use in Benin Republic to distinguish some sediments of Miocene age. Moreover, a High Resolution Biostratigraphy summary (including micropaleontology, nannopaleontology and palynology distributions) relating to each offshore basin is needed for sequences correlations and entire harmonization of the stratigraphic nomenclature of these offshore basins.

关键词： Benin Western Nigeria Offshore Basins Stratigraphy Stratigraphic Nomenclature Comparison

Energy Analysis and Exergy Utilization in the Residential Sector of Cameroon

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Energy and Power Engineering 2015年第3期7卷 93-104页

作者： Talla Konchou franck Armel Aloyem Kazé Claude Vidal Tchinda René Environmental Energy Technologies Laboratory (EETL) University of Yaounde I Yaounde Cameroon LISIE University Institute of Technology Fotso-Victor University of Dschang Bandjoun Cameroon HTTTC Department of Electrical and Power Engineering/FSC University of Bamenda Bamenda Cameroon

In this paper, we present an analysis of energy and exergy utilization in the residential sector of Cameroon by considering the sectoral energy and exergy flows for the years of 2001-2010. Exergy analysis of Cameroon residential sector utilisation indicates a less efficient picture than that obtained by the energy analysis. Cooking stands out as the most inefficient end use in the Cameroon’s residential sector. In 2010, the energy and exergy efficiency are determined and were respectively 58.74% and 22.63%. Energy and exergy flows diagrams for the overall efficiencies of Cameroon residential sector are illustrated and a comparison with the residential sector of other countries is also done. To carry out this study, a survey of 250 households was conducted and the sharing of the end uses of energy was done and data were gathered.

关键词： Exergy Efficiency Energy Flow Residential Sector

Creation of a Meta-Model for the Generation of a Webmapping Application

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Journal of Geographic Information System 2021年第4期13卷 452-465页

作者： Paul franck Hery Antenaina Aimé Richard Hajalalaina Hasina Rakotonirainy Reziky Zafimarina School of Management and Technological Innovation University of Fianarantsoa Fianarantsoa Madagascar Laboratory of Computer Science and Mathematics Applied to Development University of Fianarantsoa Fianarantsoa Madagascar Computer Science Geomatics Mathematics and Application University of Fianarantsoa Fianarantsoa Madagascar University of Antananarivo Antananarivo Madagascar

Our research focuses on creating a meta-model for generating a web mapping application. It was difficult for non-geomatics developers to implement a webmapping application. Indeed, this type of application uses geospatial data that require geomatics skills. For this reason, in order to help non-geomatics developers to set up a webmapping application, we have designed a meta-model that automatically generates a webmapping application using model-driven engineering. The created meta-model is used by non-geomatics developers to explicitly write the concrete syntax specific to the webmapping application using the xtext tool. This concrete syntax is automatically converted into source code using the xtend tool without the intervention of the non-geomatics developers.

关键词： Webmapping Model Driven Engineering Model Driven Architecture Meta-Model WebGis GIS

A Probable Connection between a Bitumen Sample from the Western Niger Delta and Isan Well Sample from the Lower Cretaceous (Neocomian) Shale

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Open Journal of Geology 2022年第12期12卷 1081-1092页

作者： Selegha Abrakasa Koffi Eugene Kouadio franck-Hilaire Essiagne Emma Laure Oura Department of Geology University of Port Harcourt Rivers State Nigeria Institut National Polytechnique Felix Houphouë t-Boigny Yamoussoukro C&#244 te d’Ivoire Civil Engineering Geoscience and Geographic Sciences Laboratory Yamoussoukro Cote d’Ivoire Center of Analysis and Research PETROCI Abidjan Cote d’Ivoire

An earlier study of GC-MS analysis on bitumen samples from the Agbabu area in Western Niger Delta showed the significant presence of gammacerane and no Oleanane and is suggested to be generated from the Lower Cretaceous (Neocomian) source rock, however, twelve core samples were obtained from the geological survey of Nigeria for both optical geochemical and biomarker analysis, two of the samples from Isan-9 well indicated the presence of Botryococcus braunii a freshwater alga which is characteristic of a lacustrine lake type environment. The extracts from the same core showed m/z = 191 chromatogram with the significant presence of gammacerane which is diagnostic for stratified water columns and characterizes a typical lake environment. However, the m/z = 191 chromatogram also shows the presence of Oleanane which is diagnostic for vascular plant materials, this doesn’t corroborate with that of the Ise-2 well. The Isan-9 well source rock is suggested to have occurred due to the evolving structural geology of the continental shelf after the onset of the rifting, whereby the dominant lake-type environment in the Early Cretaceous was accompanied by a sediment fill of continental runoffs containing vascular plant materials. This implies that an ancient lacustrine lake system was gradually modified as a result of sedimentary infill. And that the bitumen is sourced from the lower Cretaceous Neocomian source rocks.

关键词： Amorphous Botryococcus Braunii Bitumen Gammacerane Neocomian Niger Delta Basin Oleanane

Human Habitats and Malaria Vector Control in Benin: Current Situation and Implications for Effective Control

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Advances in Infectious Diseases 2023年第4期13卷 706-721页

作者： Barikissou G. Damien Armel Djènontin Badirou Aguemon franck Remoué MIVEGEC (Maladies Infectieuses et Vecteurs: Ecologie Génétique Evolution et Contr&#244le) Université de Montpellier IRD CNRS Montpellier France/Centre de Recherche Entomologique de Cotonou (CREC) Cotonou Benin Centre de Formation et de Recherche en matière de Population Université d’Abomey-Calavi Abomey-Calavi Bénin Faculté des Sciences et Techniques Université d’Abomey-Calavi Abomey-Calavi Bénin Faculté des Sciences de la Santé Université d’Abomey-Calavi Abomey-Calavi Bénin

Long-lasting insecticide-treated nets (LLINs) and indoor residual spraying (IRS) are the main indoor malaria vector tools control tools. The study examined housing characteristics and investigated the relationship between the total volume of household possessions, the volume of the sleeping room, and the hanging of LLINs. A total of 831 bedrooms were randomly selected in Benin in 2015. The findings showed that mud walls were predominant in rural areas (more than 75%), while metal roofs were common (77.3% - 97.9%). Battery-powered lighting was prevalent in rural areas in Northern (97%), while open-flame oil lamps were commonly used in rural areas in Southern (86%). The availability of correct bedding was low, ranging from 1% to 10% in all households. 20% of the bedrooms had at least 50% of their volume occupied by household possessions in urban areas. In rural areas, bedrooms without LLINs had a lower mean rate ratio of the volume occupied by possessions per the total volume of the room compared to bedrooms with at least one LLIN installed (p < 0.0001). The characteristics of human habitats are not favourable to the correct use of vector control intervention indoors. It is therefore important to improve people’s living conditions as the next step for malaria elimination.

关键词： Housing Lighting Bedding Possessions Malaria Vector Control LLINs IRS