225 articles for “Existence”

Research ArticleOpen accessIn the abstractOn a Problem Connected with Navier-stokes Equations in Non Cylindrical DomainsJ. Limaco, S. B. de Menezes, C. Vaz, J. F. MontenegroIn this study we showed the existence of weak solutions of equations that represent flows of a non-homogeneous viscous incompressible fluids in a non cylindrical domain in R3 . The classical Navier-stokes equation is a particular case of the equations here considered. …Journal of Mathematics and Statistics, Vol. 1, Issue 1 · 31 Mar 2005 · 6,610 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAn Investigation into the Use of the Least Significant Bit Substitution Technique in Digital WatermarkingKevin Curran, Xuelong Xi, Roisin ClarkeDigital imaging companies lose revenue each year to people who are illegally copying and using their images. One prevention mechanism is to digitally encode images making it difficult for others to copy. This could be done using digital fingerprinting or simply adding a visible watermark. The information is hidden in a way that should not attract attention, but make it … …American Journal of Applied Sciences, Vol. 2, Issue 3 · 31 Mar 2005 · 7,469 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

Research ArticleOpen accessIn the abstractActive Faulting and Quaternary Landforms Deformation Related to the Nain FaultAbolghasem Gourabi, Mojtaba YamaniProblem statement: Landforms developed across terrain defining boundary the Nain fault have imprints of recent tectonic activity in the west region of Central Iran. Depositional landforms such as alluvial fans bear signatures of later phases of tectonic activity in the form of faulting of alluvial fan deposits and development of fault traces and scarps within 100 km long and a … …American Journal of Environmental Sciences, Vol. 7, Issue 5 · 2 Nov 2011 · 7,823 accessesView PDF Cite

Research ArticleOpen accessIn the abstractOn Sixtic Lacunary Spline Solutions of Second Order Initial Value ProblemJwamer Karwan Hama FarajProblem statement: The lacunary problem, which we had investigated in this study, consider in finding the spline function of degree six S(x) of deficiency four, interpolating data given on the function value and third, forth order in the interval [0,1]. Also, on the extra initial condition was prescribed on the first derivative. Other purpose of this construction was to solve … …Journal of Mathematics and Statistics, Vol. 5, Issue 4 · 31 Dec 2009 · 7,763 accessesView PDF Cite