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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 · 7,859 accessesView PDFCite
Research ArticleOpen accessIn the abstractDesign of Flywheel with a Moving HoleJihad Said AddasiA special apparatus has been designed to study linear, circular, and rotational motions. This apparatus consists of a flywheel, rotating in horizontal plane by the mean of a hanging mass. This flywheel carries a hole, which can be moved on a radial rail. This hole can be fixed at desired distance from the flywheel axis. Putting a metallic sphere on … …American Journal of Applied Sciences, Vol. 2, Issue 1 · 31 Jan 2005 · 6,890 accessesView PDFCite
Research ArticleOpen accessIn the abstractSpectrometric Methods Used to Determine Heavy Metals and Total Cyanides in Accidental Polluted SoilsA. Mihaly-Cozmuta, L. Mihal Cozmuta, V. Viman et al.The study presents the level of soil pollution in the area adjacent to three sedimentation ponds as a result of an environmental accident. Soil samples from various sites have been collected and analyzed to determine the concentration of heavy metals (Cu, Pb, Zn) and total cyanides. The analysis methods used were ICP-AES for heavy metals and the colorimetric for total … …American Journal of Applied Sciences, Vol. 2, Issue 1 · 31 Jan 2005 · 6,912 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Research on Forest Road Planning and Projecting by Inroads Software in Bolu Region of TurkeyMurat Demir, Tolga OzturkThe computer software and hardware is extensively and effectively used especially in many countries of the world for the solution of complex problems. The facilities offered by the computer technology is used to great extend in forestry also as in numerous other areas. With this purpose, this research includes a study of forest road construction activities in Turkey, basic principles … …American Journal of Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2004 · 7,181 accessesView PDFCite
Research ArticleOpen accessIn the abstractStudy of Cutoff Frequency of High Collector Current Density in SiGe Single-Heterojunction Bipolar TransistorG. M. Khanduri, B. S. PanwarThe cutoff frequency performance of an NPN Si/SiGe/SiGe Single-heterojunction bipolar transistor (SiGe SHBT) at high collector current densities has been analyzed using a 2-dimensional MEDICI device simulator. A conventional NPN Si/SiGe/Si Double-heterojunction bipolar transistor (SiGe DHBT) having uniform 14%Ge in the base region has been investigated for comparison. The analysis shows the formation of a retarding potential barrier for minority … …American Journal of Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2004 · 6,895 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Causal Relationship between Trade, Foreign Direct Investment and Economic Growth in GreeceMelina Dritsaki, Chaido Dritsaki, Antonios AdamopoulosThis study investigates the relationship between Trade, Foreign Direct Investment (FDI) and economic growth in Greece over the period 1960-2002. The cointegration analysis suggested that there is a long-run equilibrium relationship. The results of the Granger causality test showed that there is a causal relationship between the examined variables. Economic growth, trade and FDI appear to be mutually reinforcing under … …American Journal of Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2004 · 9,633 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Computable General Equilibrium Model of Southern Region in Taiwan: The Impact of the Tainan Science-Based Industrial ParkChun-Chu Liu, Chia-Yon ChenThe primary modeling tools used to analyze regional economic issues include econometric forecasting models, fixed price Input-Output (I-O) multi-sector models, Social Accounting Matrix (SAM) and Computable General Equilibrium (CGE) models. CGE models combine the advantages of econometric, I-O models and SAM strengthening the theoretical basis of the modeling effort and thus enabling more precise policy analysis. The current CGE literature … …American Journal of Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2004 · 7,219 accessesView PDFCite
Research ArticleOpen accessIn the abstractDevelopment of Growth Medium for Centella Asiatica Cell Culture Via Response Surface MethodologyRozita Omar, M. A. Abdullah, M. A. Hasan, M. MarziahThe effects of sucrose, Indole-3-Acetic Acid (IAA) and 6-BenzylAminoPurine (BAP) concentrations on cell growth of Centella asiatica cell suspension culture were studied. The concentrations were designed using Central-composite experimental design and regression analysis was carried out to obtain response surface model describing cell growth for prediction of optimum conditions. Only sucrose as a single factor was positively significant for cell … …American Journal of Applied Sciences, Vol. 1, Issue 3 · 30 Sep 2004 · 7,206 accessesView PDFCite
Research ArticleOpen accessIn the abstractRobust Outlier Detection in Linear RegressionNethal K. Jajo, Xizhi WuNew methodology of robust outlier detection based on Robustly Studentized Robust Residuals (RSRR) examination is well established in linear regression analysis. Two new robust location estimators of linear regression parameters are developed in simple and multiple cases. Based on these robust estimators we obtain RSRR. We used RSRR to derive a new measure of distance to be used in outlier … …American Journal of Applied Sciences, Vol. 1, Issue 2 · 30 Jun 2004 · 6,939 accessesView PDFCite
Research ArticleOpen accessIn the abstractSurface Roughness Prediction Model in Machining of Carbon Steel by PCD Coated Cutting ToolsYusuf Sahin, A. Riza MotorcuThe surface roughness model in the turning of AISI 1040 carbon steel was developed in terms of cutting speed, feed rate and depth of cut using response surface methodology. Machining tests were carried out using PVD-coated tools under different cutting conditions. The surface roughness equations of cutting tools when machining the carbon steels were achieved by using the experimental data. … …American Journal of Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2004 · 7,968 accessesView PDFCite