Results 21 to 30 of about 36,121 (245)

A new equation to estimate glomerular filtration rate in Chinese elderly population. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: We sought to develop a new equation to estimate glomerular filtration rate (GFR) in Chinese elderly population. METHODS: A total of 668 Chinese elderly participants, including the development cohort (n = 433), the validation cohort (n = 235 ...
Xun Liu   +9 more
doaj   +1 more source

Numerical Calculation of the Irreversible Entropy Production of Additively Manufacturable Off-Set Strip Fin Heat-Transferring Structures

open access: yesEntropy, 2023
In this manuscript, off-set strip fin structures are presented which are adapted to the possibilities of additive manufacturing. For this purpose, the geometric parameters, including fin height, fin spacing, fin length, and fin longitudinal displacement,
Marco Fuchs, Nico Lubos, Stephan Kabelac
doaj   +1 more source

Ulam Stability and Non-Stability of Additive Functional Equation in IFN-Spaces and 2-Banach Spaces by Different Methods

open access: yesJournal of Function Spaces, 2022
This paper introduces a new dimension of an additive functional equation and obtains its general solution. The main goal of this study is to examine the Ulam stability of this equation in IFN-spaces (intuitionistic fuzzy normed spaces) with the help of direct and fixed point approaches and 2-Banach spaces.
N. Uthirasamy   +2 more
openaire   +2 more sources

Optimization and quality attributes of novel toast breads developed based on the antistaling watermelon rind powder

open access: yesJournal of Agriculture and Food Research, 2020
In the current research, production of watermelon rind (WMR) powder was studied as a promising additive to improve the quality characteristics of toast breads. The main formulation (WMR (4.6–11.4%)), and bread-baking process (temperature (166–233 °C) and
Maryam Shivapour   +3 more
doaj   +1 more source

Some representations of the general solution to a difference equation of additive type [PDF]

open access: yesAdvances in Difference Equations, 2019
AbstractThe general solution to the difference equation$$x_{n+1}=\frac {ax_{n}x_{n-1}x_{n-2}+bx_{n-1}x_{n-2}+cx_{n-2}+d}{x_{n}x_{n-1}x_{n-2}},\quad n\in\mathbb{N}_{0}, $$xn+1=axnxn−1xn−2+bxn−1xn−2+cxn−2+dxnxn−1xn−2,n∈N0,where$a, b, c\in\mathbb{C}$a,b,c∈C,$d\in\mathbb{C}\setminus\{0\}$d∈C∖{0}, is presented by using the coefficients, the initial values ...
openaire   +2 more sources

Automatic Recognition Method of Letter Images in English Self-Learning Based on Partial Differential Equation Method

open access: yesAdvances in Mathematical Physics, 2021
According to the current situation of knowledge popularization, students simply rely on the knowledge learned in the classroom that is far from adapting to the development of modern society; so, every student needs to have the consciousness and ability ...
Yu Zhao, Shuping Du, Ran Li, Hong Yue
doaj   +1 more source

Investigation of Phase-Locked Loop Statistics via Numerical Implementation of the Fokker–Planck Equation

open access: yesApplied Sciences, 2020
The goal of this paper is to explore the effect of various parameters on the information geometric structure of the phase-locked loop (PLL) statistics, both transient and stationary. Comprehensive treatment on the behavior of PLL statistics will be given.
Dah-Jing Jwo
doaj   +1 more source

Sick leave and disability pension among TMD patients with musculoskeletal diseases, mental and behavioural disorders – a SWEREG-TMD population-based cohort study

open access: yesBMC Public Health, 2023
Background Temporomandibular disorders (TMD) are associated with musculoskeletal diseases (MSD), mental and behavioural disorders (MBD), and patients with TMD have been shown to have 2–3 times more days of sick leave (SL) and disability pension (DP) than
Adrian Salinas Fredricson   +8 more
doaj   +1 more source

Additive difference scheme for two-dimensional fractional in time diffusion equation

open access: yesFilomat, 2017
An additive finite-difference scheme for numerical approximation of initial-boundary value problem for two-dimensional fractional in time diffusion equation is proposed. Its stability is investigated and a convergence rate estimate is obtained.
Hodžić-Živanović, Sandra   +1 more
openaire   +2 more sources

Reduced Multiplicative (BURA-MR) and Additive (BURA-AR) Best Uniform Rational Approximation Methods and Algorithms for Fractional Elliptic Equations

open access: yesFractal and Fractional, 2021
Numerical methods for spectral space-fractional elliptic equations are studied. The boundary value problem is defined in a bounded domain of general geometry, Ω⊂Rd, d∈{1,2,3}. Assuming that the finite difference method (FDM) or the finite element method (
Stanislav Harizanov   +4 more
doaj   +1 more source

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