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	Provedor de dados CIGR Journal (3) Autor Okechukwu, Michael Emeka (3) Obi, Okey Francis (2) Ijere, Chimuanya Emeka (1) Palavra-chave Physical properties (2) Aerodynamics properties (1) African breadfruit (1) Agricultural and Bioresources Engineering (1) Agricultural and Bioresources Engineering Canarium schweinfurthii nut (1) Frictional properties (1) Models (1) Parboiling time (1) Soil and Water Engineering Rainfall Reference evapotranspiration Inverse Distance Weighting Kriging Spatial Interpolation. (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2020 (2) 2018 (1) País China (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Spatial Distribution of Rainfall and Reference Evapotranspiration in Southeast Nigeria CIGR Journal Okechukwu, Michael Emeka.  Spatial trends of rainfall and reference evapotranspiration (ETo) are crucial for sustainable water resources management. Rainfall and ETo trends were evaluated and estimated using FAO Penman-Monteith model and their spatial distributions were mapped across Southeast Nigeria. Two spatial interpolation techniques, Inverse Distance Weighting (IDW) and Kriging in ArcGIS were employed for monthly, annual and seasonal rainfall and ETo. Results showed that rainfall increased gradually from North to South while ETo increased from South to North of the study area. ETo was found to be higher during dry seasons as the average rise in temperature within the period of study stood at 1.1%. There was a positive correlation of the predicted results obtained by the IDW... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural and Bioresources Engineering; Soil and Water Engineering Rainfall Reference evapotranspiration Inverse Distance Weighting Kriging Spatial Interpolation.. Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5478 Parboiling Duration Effects on Physical Properties of African Breadfruit Seed CIGR Journal Obi, Okey Francis; Okechukwu, Michael Emeka. Abstract Parboiling is a pre-dehulling operation and, the effect on the physical properties of African breadfruit seed (var. africana) was investigated. Freshly extracted seeds were parboiled for 0 (control), 5, 10, 15, and 20 minutes, and their physical properties determined. It was observed that parboiling time had a significant effect (p&lt;0.05) on all the physical properties of African breadfruit seeds investigated. The moisture content of the seed ranged from 32.92±0.23 to 50.78±0.19 % (w.b.) as the parboiling time increased. Generally, it was observed that the mean values observed for the physical dimensions (axial dimensions, mean diameters, sphericity, aspect ratio and surface area) increased from 0 to 10 min. parboiling time after which the... Tipo: Info:eu-repo/semantics/article Palavras-chave: African breadfruit; Parboiling time; Physical properties; Frictional properties. Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4918 Determination of Physical and Aerodynamic Characteristics of African Olive (Canarium Schweinfurthii) Nut CIGR Journal Obi, Okey Francis; Ijere, Chimuanya Emeka; Okechukwu, Michael Emeka. This study investigated the physical and aerodynamic properties of African olive (Canarium schweinfurthii) nuts. The nut mass frequency was identified and three fractions of the nut were defined to determine their properties. Generally, it was observed that the physical and aerodynamic characteristics of the nut were significantly influenced by the unit mass. Comparison of means revealed that the mean values of the nut physical and aerodynamic properties were significantly different between fractions at p<0.05 except for the true density. The static angle of repose appeared higher than the dynamic angle of repose for all the nut fractions. The coefficient of static friction of the nut fractions on different material surfaces was highest on plywood and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural and Bioresources Engineering Canarium schweinfurthii nut; Physical properties; Aerodynamics properties; Models. Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4820 Registros recuperados: 3 Primeira ... 1 ... Última

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