Results 11 to 20 of about 1,002,910 (222)

Studying the inertias of LCM matrices and revisiting the Bourque-Ligh conjecture [PDF]

open access: yes, 2019
Let $S=\{x_1,x_2,\ldots,x_n\}$ be a finite set of distinct positive integers. Throughout this article we assume that the set $S$ is GCD closed. The LCM matrix $[S]$ of the set $S$ is defined to be the $n\times n$ matrix with $\mathrm{lcm}(x_i,x_j)$ as ...
Haukkanen, Pentti   +2 more
core   +2 more sources

Experimental and Numerical Study of Closed Loop Solar Chimney Assisted with PCM and CFM as Thermal Energy Storage Collector [PDF]

open access: yesEngineering and Technology Journal, 2016
In this work, a test room was built in Baghdad city, with selective dimensions, while the solar chimneys (SC) where designed with aspect ratio (ar) bigger than 12 and setup to the oriented wall to the south.
Talib K. Murtadha   +2 more
doaj   +1 more source

CONCRETE BASED ON MODIFIED DISPERSE CEMENT SYSTEM

open access: yesNauka ta progres transportu, 2016
Purpose. The article considers definition of the bond types occurring in a modified cement concrete matrix, and the evaluation of the quality of these links in a non-uniform material to determine the geometrical and physical relationships between the ...
D. V. Rudenko
doaj   +1 more source

Partially shared buffers with full or mixed priority [PDF]

open access: yes, 2011
This paper studies a finite-sized discrete-time two-class priority queue. Packets of both classes arrive according to a two-class discrete batch Markovian arrival process (2-DBMAP), taking into account the correlated nature of arrivals in heterogeneous ...
Dieter Fiems   +4 more
core   +1 more source

Lipidomics of intact mitochondria by MALDI-TOF/MS

open access: yesJournal of Lipid Research, 2012
A simple and fast method of lipid analysis of isolated intact mitochondria by means of MALDI-TOF mass spectrometry is described. Mitochondria isolated from bovine heart and yeast have been employed to set up and validate the new method of lipid analysis.
Roberto Angelini   +6 more
doaj   +1 more source

Evaluation of the E‐polarization focusing ability in Thz range for microsize cylindrical parabolic reflector made of thin dielectric layer sandwiched between graphene

open access: yesIET Microwaves, Antennas & Propagation, 2021
We consider two‐dimensional (2‐D) thin dielectric parabolic reflector, covered with graphene from both sides, illuminated symmetrically by an E‐polarized electromagnetic plane wave.
Taner Oğuzer, Ayhan Altıntaş
doaj   +1 more source

Ising-like transitions in the O($n$) loop model on the square lattice [PDF]

open access: yes, 2013
We explore the phase diagram of the O($n$) loop model on the square lattice in the $(x,n)$ plane, where $x$ is the weight of a lattice edge covered by a loop. These results are based on transfer-matrix calculations and finite-size scaling. We express the
Blöte, Henk W. J., Fu, Zhe, Guo, Wenan
core   +3 more sources

Vibration analysis of fluid-conveying multi-scale hybrid nanocomposite shells with respect to agglomeration of nanofillers

open access: yesDefence Technology, 2021
The vibration problem of a fluid conveying cylindrical shell consisted of newly developed multi-scale hybrid nanocomposites is solved in the present manuscript within the framework of an analytical solution.
Farzad Ebrahimi, Ali Dabbagh
doaj   +1 more source

Hillslope subsurface flow is driven by vegetation more than soil properties in colonized valley moraines along a humid mountain elevation [PDF]

open access: yesHydrology and Earth System Sciences
Valley moraines along an elevation gradient are colonized by different climax vegetation; here, preferential flow paths (PFPs) and ground layers, as important hillslope structures, critically influence hillslope flow.
F. Wang   +8 more
doaj   +1 more source

Geometric parameters in the target matrix mesh optimization paradigm

open access: yesPartial Differential Equations in Applied Mathematics, 2022
The Target Matrix Optimization Paradigm for improving mesh quality has always had, as its agenda, to create a direct path between application mesh quality requirements and a set of target matrices that can result in an optimal mesh that meets the ...
Patrick Knupp
doaj   +1 more source

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