تصفح Mathematics, Statistics & Physics حسب العنوان
السجلات المعروضة 437 -- 456 من 726
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Multi-species attributes as the condition for adaptive sampling of rare species using two-stage sequential sampling with an auxiliary variable
( The Modelling and Simulation Society of Australia and New Zealand Inc , 2011 , Conference Paper)Assessing populations of rare species is challenging because of the large effort required to locate patches of occupied habitat and achieve precise estimates of density and abundance. The presence of a rare species has ... -
Multistable dynamics and control of a new 4D memristive chaotic Sprott B system
( Elsevier , 2022 , Article)This work proposes and investigates the dynamic behavior of a new memristive chaotic Sprott B system. One of the interesting features of this system is that it has a bias term that can adjust the symmetry of the proposed ... -
The multistage homotopy-perturbation method: A powerful scheme for handling the Lorenz system
( Elsevier , 2007 , Article)In this paper, a new reliable algorithm based on an adaptation of the standard homotopy-perturbation method (HPM) is presented. The HPM is treated as an algorithm in a sequence of intervals (i.e. time step) for finding ... -
Multivariate coefficient of variation control charts in phase I of SPC
( Springer London , 2018 , Article)Multivariate control charts are mostly available for monitoring the process mean vector or the covariance matrix. Recently, work has been done on monitoring the multivariate coefficient of variation (CV) in phase II of the ... -
Multivariate control charts for monitoring process mean vector of individual observations under regularized covariance estimation
(2021 , Article)Multivariate control charts are generally used in industries for monitoring and diagnosing processes characterized by several process variables. The applications of charts assume that the in-control process parameters are ... -
Multivariate Mixed EWMA-CUSUM Control Chart for Monitoring the Process Variance-Covariance Matrix
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)The dispersion control charts monitor the variability of a process that may increase or decrease. An increase in dispersion parameter implies deterioration in the process for an assignable cause, while a decrease in ... -
Multivariate multilevel models for attitudes toward statistics: multi-disciplinary settings in Afghanistan
( Taylor & Francis , 2016 , Article)The present paper focuses on examining students' attitudes and perception of statistics in Afghanistan universities and the factor structure of the statistical anxiety rating scale (STARS). In total, 209 undergraduate ... -
Nanofluid in tilted cavity with partially heated walls
( Elsevier , 2014 , Article)Lattice Boltzmann Method is applied to investigate the natural convection flow utilizing nanofluids in square enclosure with partially heated walls. The fluid in the cavity is a water-based nanofluid containing different ... -
Nanostructured Metal Oxide-Based Acetone Gas Sensors: A Review.
( MDPI , 2020 , Article Review)Acetone is a well-known volatile organic compound that is widely used in different industrial and domestic areas. However, it can have dangerous effects on human life and health. Thus, the realization of sensitive and ... -
Network Analysis of MERS Coronavirus within Households, Communities, and Hospitals to Identify Most Centralized and Super-Spreading in the Arabian Peninsula, 2012 to 2016
( Hindawi Limited , 2018 , Article)Contact history is crucial during an infectious disease outbreak and vital when seeking to understand and predict the spread of infectious diseases in human populations. The transmission connectivity networks of people ... -
New combination of simple additive and entropy weighting criteria for the selection of best substitution box
( IOS Press BV , 2021 , Article)Substitution boxes (S-boxes) are among the most widely recognized and fundamental component of most modern block ciphers. This is on the grounds that they can give a cipher fortifying properties to oppose known and possible ... -
New efficient exponentially weighted moving average variability charts based on auxiliary information
( John Wiley and Sons Ltd , 2020 , Article)Control chart is a well-known tool for monitoring the performance of an ongoing process. The variability of a process is an important parameter that may deteriorate the process performance if it is not taken care on time. ... -
New Multiple-kink solutions and singular-kink-solutions of (2 + 1) - Dimensional coupled burgers system with time variable coefficients
( American Scientific Publishers , 2017 , Article)In this paper, we show that the (2+1)-dimensional coupled Burgers system with time variable coefficients which arise in engineering, chemistry, chemical physics, plasma physics, complex physics and phenomena gives multiple ... -
A New One-Step Iterative Process for Common Fixed Points in Banach Spaces
( Hindawi Publishing Corporation , 2008 , Article)We introduce a new one-step iterative process and use it to approximate the common fixed points of two asymptotically nonexpansive mappings through some weak and strong convergence theorems. Our process is computationally ... -
New parametric solutions of some abel equations
( University of Miskolc , 2016 , Article)New parametric solutions of some Abel equations of second kind are found. The scheme for construction of these solutions utilizes a combination of differential invariants of a symmetry of an associated second order ODE and ... -
New solitary wave and multiple soliton solutions for fifth order nonlinear evolution equation with time variable coefficients
( Elsevier B.V. , 2018 , Article)In this paper, we investigate the multiple soliton solutions and multiple singular soliton solutions of a class of the fifth order nonlinear evolution equation with variable coefficients of t using the simplified bilinear ... -
New solitary wave and multiple soliton solutions for the time-space coupled fractional mKdV system with time-dependent coefficients
( American Scientific Publishers , 2016 , Article)In this paper, a simplified bilinear method combined with a fractional transform has been used to obtain new multiple soliton solutions for the Fractional coupled modified KdV systems with variable coefficients. These ... -
New tellurite glass: Optical properties
( Elsevier , 2008 , Article)The refractive index and UV spectra of the quaternary tellurite glass system of the form 80TeO2-5TiO2-(15 - x) WO3-xAnOm where AnOm is Nb2O5, Nd2O3 and Er2O3, x = 0.01, 1, 3 and 5 mol% for Nb2O5 and x = 0.01, 0.1, 1, 3, 5 ... -
Nitrogen K-shell photoionization of NO<sup>+</sup>
( IOP Publishing Ltd , 2020 , Conference Paper)Photoionization measurements of NO+ at Nitrogen K-shell, performed at the SOLEIL Light Source will be presented. The main observed structure corresponds to the 1s to π* resonant transition. -
Noether symmetries and conservation laws of wave equation on static spherically symmetric spacetimes with higher symmetries
( Elsevier , 2014 , Article)In Bokhari et al. (2011), the Noether symmetries of the wave equation on a general spherically symmetric spacetime metric were provided in terms of five functions of the variables t and r subject to certain differential ...