Results 41 to 50 of about 1,079,787 (297)

In Memory of Professor Wojciech Józef Burszta

open access: yesSprawy Narodowościowe. Seria nowa, 2021
In Memory of Professor Wojciech Józef Burszta The text is dedicated to the memory of Professor Wojciech J. Burszta.   Pamięci Profesora Wojciecha Józefa Burszty Tekst poświęcony pamięci Profesora Wojciecha J. Burszty.
Michał Rauszer
doaj   +1 more source

Influence of Hydrolytic and Chemical Treatment on the Mechanical Properties of Aramid and Copolyaramid Fibers [PDF]

open access: yes, 1998
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence
Abu Obaid, A.   +3 more
core   +1 more source

On the Convergence of Decentralized Gradient Descent

open access: yes, 2015
Consider the consensus problem of minimizing $f(x)=\sum_{i=1}^n f_i(x)$ where each $f_i$ is only known to one individual agent $i$ out of a connected network of $n$ agents.
Ling, Qing, Yin, Wotao, Yuan, Kun
core   +2 more sources

Pre-yield tensile set of a semi-crystalline polymer, its blend and composite [PDF]

open access: yes, 2007
Tensile set was studied at low strains on\ud polypropylene, aliphatic polyketone, rubber toughened\ud blends and CaCO3 particle toughened composites. The\ud rubber in the rubber toughened blends had a particle size of\ud 0.7 lm. The CaCO3 particles had a
Gaymans, R.J.   +2 more
core   +4 more sources

Prompt and non-prompt $$J/\psi $$ J/ψ elliptic flow in Pb+Pb collisions at $$\sqrt{s_{_\text {NN}}} = 5.02$$ sNN=5.02 Tev with the ATLAS detector

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The elliptic flow of prompt and non-prompt $$J/\psi $$ J/ψ was measured in the dimuon decay channel in Pb+Pb collisions at $$\sqrt{s_{_\text {NN}}}=5.02$$ sNN=5.02  $$\text {TeV}$$ TeV with an integrated luminosity of $$0.42~\mathrm {nb}^{-1}$$ 0.42nb-1 ...
M. Aaboud   +2925 more
doaj   +1 more source

Algorithms for Positive Semidefinite Factorization

open access: yes, 2017
This paper considers the problem of positive semidefinite factorization (PSD factorization), a generalization of exact nonnegative matrix factorization. Given an $m$-by-$n$ nonnegative matrix $X$ and an integer $k$, the PSD factorization problem consists
Gillis, Nicolas   +2 more
core   +1 more source

Squared distance matrices of trees with matrix weights

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
Let T be a tree on n vertices whose edge weights are positive definite matrices of order s. The squared distance matrix of T, denoted by Δ, is the ns × ns block matrix with [Formula: see text], where d(i, j) is the sum of the weights of the edges in the ...
Iswar Mahato, M. Rajesh Kannan
doaj   +1 more source

Near open generalizations of rough sets and their applications

open access: yesBeni-Suef University Journal of Basic and Applied Sciences
Background The concept of near open sets is a potent tool that empowers researchers to achieve a more encompassing approximation of rough sets, thereby enhancing the accuracy of measurements.
A. S. Salama   +4 more
doaj   +1 more source

Search for rare decays of $$\mathrm {Z}$$ Z and Higgs bosons to $${\mathrm {J}/\psi } $$ J/ψ and a photon in proton-proton collisions at $$\sqrt{s}$$ s = 13$$\,\text {TeV}$$ TeV

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
A search is presented for decays of $$\mathrm {Z}$$ Z and Higgs bosons to a $${\mathrm {J}/\psi } $$ J/ψ meson and a photon, with the subsequent decay of the $${\mathrm {J}/\psi } $$ J/ψ to $$\mathrm {\mu ^+}\mathrm {\mu ^-} $$ μ+μ- .
A. M. Sirunyan   +2304 more
doaj   +1 more source

Josephson effect in thin-film superconductor/insulator/superconductor junctions with misaligned in-plane magnetic fields

open access: yes, 2007
We study a tunnel junction consisting of two thin-film s-wave superconductors separated by a thin, insulating barrier in the presence of misaligned in-plane exchange fields.
A. I. Larkin   +8 more
core   +1 more source

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