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Research ArticleOpen accessIn the keywordsA Comparison of the Bayesian and Other Methods for Estimation of Reliability Function for Burr-XII DistributionSafaa Ali Nasir, Nashaat Jaisam Al-AnberProblem statement: The Burr-XII distribution has been widely used especially in the modeling of life time event data. It provides a statistical model which has a wide variety of application in many areas and the main advantage is its ability in the context of life time event among other distributions. The conventional maximum likelihood method is the usual way to … …Journal of Mathematics and Statistics, Vol. 8, Issue 1 · 27 Dec 2011 · 7,856 accessesView PDFCite
Research ArticleOpen accessIn the keywordsComparison of the Bayesian and Maximum Likelihood Estimation for Weibull DistributionAl Omari Mohammed Ahmed, Hadeel Salim Al-Kutubi, Noor Akma IbrahimProblem statement: The Weibull distribution has been widely used especially in the modeling of lifetime event data. It provides a statistical model which has a wide variety of applications in many areas, and the main advantage is its ability in the context of lifetime event, to provide reasonably accurate failure analysis and failure forecasts especially with extremely small samples. The … …Journal of Mathematics and Statistics, Vol. 6, Issue 2 · 30 Jun 2010 · 10,959 accessesView PDFCite
Research ArticleOpen accessIn the keywordsElements of Formal Probabilistic MechanicsFarida Kachapova, Ilias KachapovIn this study model of particle motion on a three-dimensional lattice is created using discrete random walk with small steps. A probability space of the particle trajectories is rigorously constructed. Unlike deterministic approach in classical mechanics, here probabilistic properties of particle movement are used to formally derive analogues of Newton’s first and second laws of motion. Similar probabilistic models can … …Journal of Mathematics and Statistics, Vol. 18, Issue 1 · 18 Mar 2022 · 6,259 accessesView PDFCite
Research ArticleOpen accessIn the keywordsConversion of a Conventional Vehicle into a Battery-Super Capacitor Hybrid VehicleAnuradha Herath, Pasan Gunawardena, Vimukthi Randeny et al.The use of a super capacitor pack parallel with a battery pack in electric vehicles can have effects on the battery life as well as on the driving range of the vehicle. In this research a conventional IC engine vehicle was converted into a motor driven electric vehicle. The converted vehicle was tested on a drive cycle defined to match … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 3 · 11 Oct 2018 · 7,709 accessesView PDFCite
Research ArticleOpen accessIn the keywordsLithofacies and Depositional Environment of Volcano-Sedimentary Deposits of Se Mayo Oulo BasinElie Fosso Menkem, David Sebag, Benjamin Ngounou Ngatcha, Alain DurandThe study of volcano-sedimentary deposits of Mangbai in SE Mayo Oulo basin-Cameroon leads to the identification of five major distinct lithofacies types. From the coarset to the finest lithofacies, there are: Gb-clast supported by massive coble and boulder, Gg-granule to massive gravel, Sm-massive sand, Sh-horizontal layered sandstones, Fml-massive laminated claystones. Coarse facies (Gb, Gg, Sm) are cemented with volcanic matrix … …Current Research in Geoscience, Vol. 3, Issue 2 · 19 Dec 2013 · 7,375 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAnalysis of Handwriting Velocity to Identify Handwriting Process from Electromyographic SignalsMohamed Benrejeb, Afef Abdelkrim, Ines ChihiProblem statement: Handwriting movement is one of the most complex activities of human motions. It’s a blend of kinesthetic, cognitive, perceptual and motor components. The study of this biological process shows that a bell-shaped velocity profiles are generally observed in the handwriting motion. We, therefore, assume that the handwriting speed has an important role in control and generation of this … …American Journal of Applied Sciences, Vol. 9, Issue 10 · 27 Aug 2012 · 7,925 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExploring Alternative Solutions Regarding Conservation AgricultureReza Movahedi, Hadi Fathi, Mousa Aazami, Somaye LatifiProblem statement: Studies show that no effective measures have been taken towards conservative agriculture in Iran. Social, economical and technical agricultural factors and conditions need to be provided to meet conservation agriculture at the farm, regional and national level. Accordingly, this research aimed at exploring some solutions to protect and conserve agriculture. Approach: To achieve this, of all 100 populations, … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 31 Jan 2011 · 7,946 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRegression Analysis of Effective Factor on People Participation in Protecting, Revitalizing, Developing and Using Renewable Natural Resources in Ilam Province from the View of UsersBagher Arayesh, Sayed Jamal HosseiniProblem statement: The purpose of this study was the regression analysis of effective factor on people participation in protecting, revitalizing, developing and using renewable natural resources in Ilam province. Approach: This study was a casual comparative and applies one. Sample was taken from natural resources users. Results: The sample size of groups was 317 for users respectively. For sample selection, … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 7,959 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOn The Estimation of Survival Function and Parameter Exponential Life Time DistributionHadeel Salim Al-Kutubi, Noor Akma IbrahimProblem statement: The study and research of survival or reliability or life time belong to the same area of study but they may belong to a different area of application. In survival analysis one can use several life time distribution, exponential distribution with mean life time θ is one of them. To estimate this parameter and survival function we must … …Journal of Mathematics and Statistics, Vol. 5, Issue 2 · 30 Jun 2009 · 8,068 accessesView PDFCite
Research ArticleOpen accessIn the keywordsWeyl's Type Theorems for Quasi-Class A OperatorsM.H.M. Rashid, M.S.M. Noorani, A.S. SaariA variant of Weyl theorem for a class of quasi-class A acting on an infinite complex Hilbert space were discussed. If the adjoint of T is a quasi-class A operator, then the generalized a-Weyl holds for f(T) , for every function that analytic on the spectrum of T. The generalized Weyl theorem holds for a quasi-class A was proved. Also, … …Journal of Mathematics and Statistics, Vol. 4, Issue 2 · 30 Jun 2008 · 7,224 accessesView PDFCite