Browsing Mathematics, Statistics & Physics by Title
Now showing items 156-175 of 715
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Confidence intervals for quantiles using record values from the generalized exponential distribution
( Nova Science Publishers, Inc. , 2012 , Book chapter)Likelihood-based and bootstrap confidence intervals for the quantiles of the generalized exponential distribution based on record values are developed. Intervals for the difference of quantiles based on two independent ... -
Confidence intervals for the quantiles of the Weibull distribution based on record values
( Nova Science Publishers Inc , 2008 , Article)We consider likelihood-based and bootstrap confidence intervals for the quantiles based on record values from the Weibull distribution. We developed also intervals for the difference of quantiles based on two independent ... -
Confidence intervals for the two-parameter exponential reliability with type II censored data
( Taylor and Francis Ltd. , 2016 , Article)We consider interval estimation of the reliability of the two-parameter exponential distribution.We consider asymptotic intervals, Bayesian, as well as intervals based on the generalized pivot variable. Transformations to ... -
Conformal capacity and polycircular domains
( Elsevier , 2023 , Article)We study numerical conformal mapping of multiply connected planar domains with boundaries consisting of unions of finitely many circular arcs, so called polycircular domains. We compute the conformal capacities of condensers ... -
Conformal Invariants in Simply Connected Domains
( Springer Link , 2020 , Article)This paper studies the numerical computation of several conformal invariants of simply connected domains in the complex plane including, the hyperbolic distance, the reduced modulus, the harmonic measure, and the modulus ... -
Construction of (n+ 1) -dimensional dual-mode nonlinear equations: multiple shock wave solutions for (3 + 1) -dimensional dual-mode Gardner-type and KdV-type
( Springer International Publishing , 2019 , Article)The goal of this study is to offer an exclusive functional conversion to produce (n+ 1) -dimensional dual-mode nonlinear equations. This transformation has been implemented and new (3 + 1) -dimensional dual-mode Gradner-type ... -
Construction of S-Box based on chaotic map and algebraic structures
( MDPI AG , 2019 , Article)The Advanced Encryption Standard (AES) is widely used in different kinds of security applications. The substitution box (S-box) is the main component of many modern symmetric encryption ciphers that provides confusion ... -
Contributing risk factors of common psychiatric disorders in the Pakistani population
( Springer Science and Business Media Deutschland GmbH , 2022 , Article)With an increasing incidence of psychiatric disorders worldwide, there is a need for a better understanding of the population-specific contributing risk factors that are associated with common psychiatric conditions. This ... -
Control of parabolic PDEs with time-varying spatial domain: Czochralski crystal growth process
( Taylor and Francis Ltd. , 2013 , Article)This paper considers the optimal control problem for a class of convection-diffusion-reaction systems modelled by partial differential equations (PDEs) defined on time-varying spatial domains. The class of PDEs is characterised ... -
Convergence of RK-iterative process for generalized nonexpansive mappings in CAT(0) spaces
( World Scientific Publishing Co. Pte Ltd , 2019 , Article)In this paper, we introduce a new four-step iterative process and name it as RK-iterative process and prove some ?-convergence and strong convergence results using this process for generalized nonexpansive mappings in ... -
Convergence theorems for nonself asymptotically nonexpansive mappings
( Elsevier B.V. , 2007 , Article)In this paper, we prove some strong and weak convergence theorems using a modified iterative process for nonself asymptotically nonexpansive mappings in a uniformly convex Banach space. This will improve and generalize the ... -
Coronary Heart Disease Risk Factors among University Female Students
( Radcliffe Medical Press , 2017 , Article)Background: Coronary heart disease (CHD) is a main cause of morbidity and mortality globally. High levels of cholesterol are considered a major risk factor of CHD. This study sought to find out the prevalence of high ... -
Correlated decay of triplet excitations in the shastry-sutherland compound SrCu2 (BO3)2
( American Physical Society , 2014 , Article)The temperature dependence of the gapped triplet excitations (triplons) in the 2D Shastry-Sutherland quantum magnet SrCu2(BO3)2 is studied by means of inelastic neutron scattering. The excitation amplitude rapidly decreases ... -
Correlating the rheological and magneto-optical properties of cobalt substituted magnetite ferrofluids (CoxFe1?xFe2O4) with theoretical studies
( Elsevier B.V. , 2023 , Article)Magnetite ferrofluids are widely reported due to their outstanding physicochemical, magnetic and antibacterial properties. This study focusses on the synthesis of magnetite ferrofluids and the effect of Co2+ substitution ... -
Corrosion properties of duplex treated Ti-6Al-4V alloy in chloride media using electrochemical and positron annihilation spectroscopy techniques
( Elsevier B.V. , 2006 , Article)The corrosion properties of duplex-treated and nitrided Ti-6Al-4V have been investigated in 0.025, 0.25 and 2.5 M NaCl using electrochemical techniques, Positron Annihilation Spectroscopy (PAS), X-ray diffraction (XRD), ... -
Coupled coincidence point results for (ψ,φ) -weakly contractive mappings in partially ordered Gb-metric spaces
( Hindawi Publishing Corporation , 2013 , Article)In this paper we present some coupled coincidence point results for (ψ,φ) -weakly contractive mappings in the setup of partially ordered Gb -metric spaces. Our results extend the results of Cho et al. (Fixed Point Theory ... -
Covid-19 Vaccine Protection among Children and Adolescents in Qatar.
( Massachusetts Medical Society , 2022 , Article)The BNT162b2 vaccine against coronavirus disease 2019 (Covid-19) has been authorized for use in children 5 to 11 years of age and adolescents 12 to 17 years of age but in different antigen doses. We assessed the real-world ... -
Creating textured surfaces using plasma electrolysis
( Materials Research Society , 2013 , Article)Plasma electrolysis (PE) is a combination of electrolysis and plasma discharge. Previous studies indicated that PE usually created porous surface with irregular morphology as a result of the plasma-cathode interaction that ... -
Cryptanalysis of nonlinear confusion component based encryption algorithm
( Elsevier , 2021 , Article)Recently many substitution box based encryption algorithms ensuring privacy have been proposed. Many, chaotic map based S-boxes have been generated posing high nonlinearity and strong cryptographic properties. Encryption ... -
Dark soliton scattering in symmetric and asymmetric double potential barriers
( Elsevier B.V. , 2017 , Article)Motivated by the recent theoretical study of (bright) soliton diode effects in systems with multiple scatterers, as well as by experimental investigations of soliton-impurity interactions, we consider some prototypical ...