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Agro-Morphological Characterization of a Collection of Fonio [Digitaria exilis (Kippist.) Stapf.] Accessions from Burkina Faso

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American Journal of Plant Sciences 2023年第6期14卷 677-690页

作者： balma patrice Kabore Boukare Kiebre Mariam Kiebre Zakaria Sanou Jacob Bationo/Kando Pauline Laboratoire Biosciences Unité de Formation et de Recherche en Sciences de la Vie et de la Terre Université Joseph KI-ZERBO Ouagadougou Burkina Faso Institut de l’Environnement et de Recherches Agricoles/Farako-Bñ (INERA/Farako-B&#241) Bobo Dioulasso Burkina Faso

Considered as the oldest cereal, fonio (Digitaria exilis Stapf.) is grown in West Africa for its therapeutic virtues, its nutritional and organoleptic qualities. It plays an important socio-cultural and economic role for the populations of western Burkina Faso. However, very few studies on the genetic diversity of fonio have been carried out. This study aims to contribute to a better knowledge of the diversity of Digitaria exilis in Burkina Faso using agro-morphological descriptors. Thus, 60 accessions of fonio collected from western Burkina Faso were characterized using 21 agro-morphological characters according to an Alpha Latice design with three replications. The study showed morphological variability for most of the qualitative and quantitative characters studied. Principal component analysis (PCA) explained 56.07% of the variability. Hierarchical cluster analysis splits the accessions of the collection into four clusters using seven characters. These characters can constitute basic criteria for differentiating fonio accessions in Burkina Faso. The accessions of Group II have a long cycle and high production of grain, while the accessions of Group IV have a short cycle and low production of grain. The groups identified can serve as a starting point for fonio breeding in Burkina Faso.

关键词： Digitaria exilis Agro-Morphological Variability Accession Burkina Faso

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Experiment/simulation correlation-based methodology for metallic ballistic protection solutions

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Defence Technology（防务技术） 2023年第11期29卷 24-38页

作者： Yohan Cosquer patrice Longère Olivier Pantalé Claude Gailhac DGA-Techniques Aéronautiques 31130BalmaFrance Institut Clement Ader Universite de ToulouseISAE-SUPAEROIMT Mines AlbiUPSINSACNRS3RueCarolineAigle31400ToulouseFrance Laboratoire Genie de Production INP/ENITUniversitéde Toulouse47Avenued’AzereixF-65016TarbesFrance CNIM Systemes Industriels 83500 La Seyne-sur-MerFrance

A methodology is developed based on the coupling of a finite element code with an optimisation module for the design of land vehicle armouring composed of lightweight aluminium alloy and high strength steel *** an experiment/simulation correlation,a numerical model has been built and calibrated considering monolithic plates and then verified considering a bi-metal protection against tungsten carbide projectile mimicking the core of a 7.62×51 AP8 *** addition,a method is proposed to obtain the v_(res)-v_(i) curve for the full 7.62×51 AP8 bullet from the v_(res)-v_(i) curve obtained from the core only.

关键词： Impact Terminal ballistics Ballistic limit MARS380 Aluminium alloy 7.62×51 AP8

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