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282.189  Articles
1 of 28.220 pages  |  10  records  |  more records»
This paper aims to explore spatial heterogeneity present in the crop yields data collected from 170 administrative districts in the forest and forest-steppe zones of Ukraine for 27 years using the PCA and GWPCA methods. As a result of the principal compon... see more

In the present article, the patterns of the geographic variability in yields of rye within Polesia and the Forest-Steppe zone of Ukraine are presented and the correlation of the factors and dynamics of an agroeconomic and agroecological nature was determi... see more

Agricultural production in Kenya is dominated by smallholder enterprises which provide up to 60% of the country's workforce. The agrarian transition to enhance smallholder participation in neoliberal capitalistic markets demands compliance to sanitary and... see more

This paper reveals the spatial and temporal patterns of grain and leguminous crops yield dynamics in Dnipropetrovsk region and evaluates the role of agro-environmental and agro-economic factors in their formation. Crop data were obtained from the State St... see more

Face recognition is one of many important researches, and today, many applications have implemented it. Through development of techniques like Principal Components Analysis (PCA), computers can now outperform human in many face recognition tasks, particul... see more

Factor analysis (principal components analysis is a factor method) of downsizing thecomplexity of data and fixing the number of principal components to be retained in the final model. Inthis paper we present the usefulness of Principal Components Analysis... see more

Groundwater drinking water supply surveillance data were accessed to summarize water quality delivered as public and private water supplies in southern Saskatchewan as part of an exposure assessment for epidemiologic analyses of associations between water... see more

This article provides a quantification of the territorially varied relation between socio-economic factors and the amount of municipal waste in Polish districts. For this purpose, eight causes were identified: revenue budgets, the number and are... see more

This paper presents a way of predicting the biochemical oxygen demand (BOD) of the output stream of the activated sludge of a food processing industry. A combination of principal components analysis (PCA) and artificial neural networks (ANN) was used to d... see more

1 of 28.220 pages  |  10  records  |  more records»