126 articles for “multivariate”

Research ArticleOpen accessIn the abstractA Total Productivity PCA Model for Assessment and Improvement of Electrical Manufacturing SystemsAli Azadeh, Farid GhaderiThis study presents a framework for assessment of electrical manufacturing systems based on a total machine productivity approach and multivariate analysis. Furthermore, the total model is developed by Principle Component Analysis (PCA) and validated and verified by Numerical Taxonomy (NT) and non-parametric correlation methods, namely, Spearman correlation experiment and Kendall Tau. To achieve the objectives of this study, a comprehensive … …Journal of Mathematics and Statistics, Vol. 1, Issue 3 · 30 Sep 2005 · 6,270 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMacroeconomic Variables Analysis in Ukraine: An Empirical Approach with Cointegration MethodNikolaos Dritsakis, Katerina GialetakiThis study investigates the relationship among exports, economic growth, investments and employment in a former country of the Soviet Union such as Ukraine. The purpose of this study was to examine the long-run relationship between these variables using quarterly data for the period 1991:I-2000:IV and applying the cointegration analysis as suggested by Johansen and Juselious. Then a multivariate autoregressive vector … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,706 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSystem Availability in the Presence of Estimating Common-cause Time-varying Failure RatesM. A. El-Damcese, Kh. A. Abd AlttifThis study presents a method for calculating the availability of a system depicted by availability block diagram, with identically distributed components, in the presence of estimating common cause hazard, we use the Marshall and Olkin formulation of the multivariate exponential distribution. That is, the components are subject to failure by Poisson failure processes that govern simultaneous failure of a specific … …American Journal of Applied Sciences, Vol. 2, Issue 4 · 30 Apr 2005 · 6,732 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMacroeconomic Impact of Trade on Namibian Growth: An Empirical IllustrationCyril A. OgbokorThe study analyses the role of trade on the economy of Namibia by considering a different specification of the traditional export-growth model. Foreign direct investment is included to capture the potential effect of this variable on growth. Utilising a combination of bivariate and multivariate models, the researcher estimated the relationship between the selected macroeconomic variables used for the study. Macroeconomic … …Journal of Social Sciences, Vol. 1, Issue 1 · 31 Mar 2005 · 6,864 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAssociation of Landscape Metrics to Surface Water Biology in the Savannah River BasinMaliha S. Nash, Deborah J. Chaloud, Susan E. FransonSurface water quality for the Savannah River basin was assessed using water biology and landscape metrics. Two multivariate analyses, partial least square and canonical correlation, were used to describe how the structural variation in landscape metrics may affect surface water biology and to define the key landscape variable(s) that contribute the most to variation in surface water quality. The results … …Journal of Mathematics and Statistics, Vol. 1, Issue 1 · 31 Mar 2005 · 6,292 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Causal Relationship and Macroeconomic Activity: Empirical Results From European UnionChaido Dritsaki, Antonios AdamopoulosThis study investigates the relationship among macroeconomic variables using quarterly data for European Union covering the period from 1970 I to 2000 IV. The purpose of this study is to estimate the dynamic interrelation among macroeconomic variables such as money, gross domestic product, interest rates, level of price and exchange rates. For the empirical analysis of this investigation, we employ … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 7,854 accessesView PDF Cite