Results 31 to 40 of about 57,951,730 (260)

The development of 1 MW ECRH system on J-TEXT [PDF]

open access: yesEPJ Web of Conferences, 2023
A 1 MW electron cyclotron resonance heating system has been designed and developed for J-TEXT tokamak not only to enhance the total heating power but also to provide another possible way to control the plasma parameters.
Chen Xixuan   +4 more
doaj   +1 more source

An optimal condition for the uniqueness of a periodic solution for linear functional differential systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2009
Unimprovable effective efficient conditions are established for the unique solvability of the periodic problem $$ \begin{aligned} u'_i (t)&=\sum\limits_{j=2}^{i+1} \ell_{i,j}(u_{j})(t) + q_i(t) \qquad \text{for} \quad 1 \leq i\leq n-1,\\ u'_n (t ...
Sulkhan Mukhigulashvili, I. Grytsay
doaj   +1 more source

Shedding light on the X(3930) and X(3960) states with the $$B^- \rightarrow K^- J/\psi \omega $$ B - → K - J / ψ ω reaction

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We have studied the contribution of the state X(3930), coming from the interaction of the $$D \overline{D}$$ D D ¯ and $$D^{+}_s D^{-}_s$$ D s + D s - channels, to the $$B^- \rightarrow K^- J/\psi \omega $$ B - → K - J / ψ ω decay.
L. M. Abreu   +4 more
doaj   +1 more source

The Changing Dynamics of a Universe in Transition

open access: yesReports in Advances of Physical Sciences, 2023
It is shown in this paper that the distorted space model of matter can describe a universe transitioning between conception and an open-ended finality.
Dale. R. Koehler
doaj   +1 more source

Pólya fields and Kuroda/Kubota unit formula

open access: yesMathematics Open, 2023
Let K be a number field. The Pólya field concept is used to know when the module of integer-valued polynomials over the ring of integers [Formula: see text] of K has a regular basis. In [C. W.-W.
Charles Wend-Waoga Tougma
doaj   +1 more source

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

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

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

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