تصفح Mathematics, Statistics & Physics حسب العنوان
السجلات المعروضة 41 -- 60 من 715
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Adsorption and gas sensing properties of CuFe2O4 nanoparticles
( Sciendo , 2019 , Article)Spinel ferrite nanoparticles in the form CuFe2O4 were tested for gas sensing applications. Nanoparticles pressed in a disk form were used to construct conductometric gas sensors. The disk was placed between two electrical ... -
Adsorption study of Pb(II) in aqueous medium using polyaniline nanocomposites
( John Wiley and Sons Ltd , 2017 , Article)This research work presents a simple and effective way for preparation of polyaniline (PANI) nanofiber composites mixed with polyvinyl alcohol or polystyrene (PS) and their application for lead (Pb) removal from an aqueous ... -
Algorithms for simultaneous block triangularization and block diagonalization of sets of matrices
( AIMS Press , 2023 , Article)In a recent paper, a new method was proposed to find the common invariant subspaces of a set of matrices. This paper investigates the more general problem of putting a set of matrices into block triangular or block-diagonal ... -
Alternative method of diffraction-enhanced imaging
( Elsevier B.V. , 2007 , Article)Diffraction-enhanced imaging (DEI) is a radiographic technique that derives contrast from an object's X-ray absorption, refraction gradient and small-angle scatter properties (extinction). The DEI imaging system prepares ... -
An alternative proof of Lie’s linearization theorem using a new λ-symmetry criterion
( Elsevier , 2015 , Article)An alternative proof of Lie’s approach for the linearization of scalar second-order ordinary differential equations is derived by using the relationship between λ-symmetries and first integrals. This relation further leads ... -
Ameliorated ensemble strategy-based evolutionary algorithm with dynamic resources allocations
( Atlantis Press , 2021 , Article)In the last two decades, evolutionary computing has become the mainstream to attract the attention of the experts in both academia and industrial applications due to the advent of the fast computer with multi-core GHz ... -
An algorithm approach to maximal monotone operators and pseudo-contractions
( International Scientific Research Publications , 2016 , Article)The purpose of this article is to find the minimum norm solution of maximal monotone operators and strict pseudo-contractions in Hilbert spaces. A parallel algorithm is constructed. Some analysis techniques are used to ... -
An analytical study of employee happiness in service sectors: A pilot study
( Natural Sciences Publishing , 2021 , Article)The present paper aims to investigate happiness levels of employees in services and underpin disparate evidences from existing literature, to any reported differences in the levels of happiness among employees. This paper ... -
An Assorted Design for Joint Monitoring of Process Parameters: An Efficient Approach for Fuel Consumption
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)Due to high fuel consumption, we face the problem of not only the increased cost, but it also affects greenhouse gas emission. This paper presents an assorted approach for monitoring fuel consumption in trucks with the ... -
An efficient algorithm for large-scale extended trust-region subproblems with non-intersecting linear constraints
( Springer Science and Business Media Deutschland GmbH , 2021 , Article)In this paper, we study the extended trust-region subproblem in which the trust-region intersects the ball with m linear inequality constraints (m-eTRS). We assume that the linear constraints do not intersect inside the ... -
An efficient image encryption scheme based on double affine substitution box and chaotic system
( Elsevier , 2021 , Article)Privacy of information is one of the most important and unavoidable issues in our digitally advance era. A huge amount of information transmitted over different servers and networking protocols. The sphere of digitally ... -
An efficient image encryption scheme based on fractal Tromino and Chebyshev polynomial
( Springer International Publishing , 2021 , Article)The security of digital content during transmission and storage through insecure communication links and databases is a challenging issue in today's world. In this article, an encryption scheme based on fractal Tromino and ... -
An Efficient Phase I Analysis of Linear Profiles with Application in Photo-Voltaic System
( Springer Verlag , 2019 , Article)In many manufacturing industries, quality of an item depends on different characteristics and their relationship may be modeled by profiles. For instance, in photo-voltaic (PV) system, output voltage is dependent on the ... -
An enhanced nonparametric EWMA sign control chart using sequential mechanism
( Public Library of Science , 2019 , Article)Control charts play a significant role to monitor the performance of a process. Nonparametric control charts are helpful when the probability model of the process output is not known. In such cases, the sampling mechanism ... -
An ensemble neural network framework for improving the detection ability of a base control chart in non-parametric profile monitoring
( Elsevier , 2022 , Article)Profile monitoring is a challenging issue in statistical process control (SPC). It aims to use a functional relationship between a response variable and one or more explanatory variable(s) to summarize the quality of a ... -
An exploratory study on medications in Qatar homes
( Dove Medical Press Ltd , 2011 , Article)Background: Drug therapy is the most often used intervention for treatment and prevention of disease. However, if used inappropriately, drugs can cause more harm than good. Improper drug storage and disposal can have a ... -
An improved adaptive EWMA control chart for monitoring time between events with application in health sector
( John Wiley and Sons Ltd , 2023 , Article)Nonconforming events rarely occur in high-quality processes, and the time between events ((Formula presented.)) is likely to be followed by a skewed distribution, such as an exponential distribution. This paper proposes ... -
An Improved Control Chart for Monitoring Linear Profiles and its Application in Thermal Conductivity
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In most of the manufacturing processes, we encounter different quality characteristics of a product and process. These characteristics can be categorized into two kinds; study variables (variable of interest) and the ... -
An improved whale optimization algorithm for solving multi-objective design optimization problem of PFHE
( IOS Press , 2019 , Article)In this paper, we have used a novel initialization strategy to improve Whale optimization algorithm (WOA), which is named as The Improved Whale Optimization Algorithm (IWOA). To evaluate the capability of the algorithm in ... -
An iterative method for common solution to various problems
( Jangjeon Mathematical Society , 2019 , Article)In this paper, we introduce a new iterative method to find a common solution of a generalized mixed equilibrium problem, a variational inequality problem and a hierarchical fixed point problem for demicontinuous nearly ...