Institution
The Cyprus Institute
Other•Nicosia, Cyprus•
About: The Cyprus Institute is a other organization based out in Nicosia, Cyprus. It is known for research contribution in the topics: Aerosol & Environmental science. The organization has 418 authors who have published 1252 publications receiving 32586 citations.
Topics: Aerosol, Environmental science, Lattice QCD, Geology, Nucleon
Papers published on a yearly basis
Papers
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TL;DR: In this article, the parton quasidistribution functions (PDFs) were computed using lattice ensembles with Wilson twisted mass fermions, a pion mass of approximately 370 MeV and three different lattice spacings.
Abstract: The parton quasidistribution functions approach provides a path to computing parton distribution functions (PDFs) using lattice QCD. This approach requires matrix elements of a power-divergent operator in a nucleon at high momentum and one generically expects discretization effects starting at first order in the lattice spacing $a$. Therefore, it is important to demonstrate that the continuum limit can be reliably taken and to understand the size and shape of lattice artifacts. In this work, we report a calculation of isovector unpolarized and helicity PDFs using lattice ensembles with ${N}_{f}=2+1+1$ Wilson twisted mass fermions, a pion mass of approximately 370 MeV, and three different lattice spacings. Our results show a significant dependence on $a$, and the continuum extrapolation produces a better agreement with phenomenology. The latter is particularly true for the antiquark distribution at small momentum fraction $x$, where the extrapolation changes its sign.
29 citations
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TL;DR: From the methods tested, LDA and the machine learning technique of linear SVM exhibit the best performance, with high prediction accuracy and relatively low bias in most of the tests.
29 citations
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TL;DR: In this paper, the authors investigated the thermodynamics properties of a ternary system, starting from its binary subunits, studying the phase diagram of this compound both experimentally and by a regular solution model.
Abstract: When designing a concentrating solar power (CSP) system, selection of a proper heat transfer fluid (HTF) material is a key, especially when employed in parabolic trough CSP plants. In particular, the use of low melting mixtures as an alternative to the widely commonly used “solar salt” can increase the CSP manageably and, as a result, several innovative nitrite/nitrate mixtures have been proposed. However, very few thermodynamics data are available for these compounds, especially regarding ternary compositions. One of the most interesting low freezing mixture is prepared with sodium and potassium nitrate together with sodium nitrite. The aim of this work is to investigate the thermodynamics properties of this ternary system, starting from its binary subunits, studying the phase diagram of this compound both experimentally and by a regular solution model. At this purpose, the literature phase diagrams of the binary subsystem were simulated in order to obtain the fitting parameters necessary for the employed semi-predictive tool. Then, the ternary system was modeled and the results showed very good agreement with the experimental points. It is quite interesting to note that both the theoretical and experimental results showed a low melting zone presenting greater sodium nitrate molar fractions with respect to sodium nitrite than previously reported in literature. This would lead to a decrease in the HTF price and an improvement regarding the fluid toxicity.
29 citations
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TL;DR: In this article, the low-lying glueball spectrum and various string tensions in SU(N) lattice gauge theories in 2+1 dimensions were calculated and extrapolate the results to the continuum limit.
Abstract: We calculate the low-lying glueball spectrum and various string tensions in SU(N) lattice gauge theories in 2+1 dimensions, and extrapolate the results to the continuum limit. We do so for for the range N=2 to N=16 so as to control the N-dependence with a useful precision. We observe a number of striking near-degeneracies in the various J^PC sectors of the glueball spectrum, in particular between C=+ and C=- states. We calculate the string tensions of flux tubes in a number of representations, and provide evidence that the leading correction to the N-dependence of the k-string tensions varies as 1/N rather than 1/N^2, and that the dominant binding of k fundamental flux tubes into a k-string is via pairwise interactions. We comment on the possible implications of our results for the dynamics of these gauge theories.
29 citations
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TL;DR: In this article, the feasibility of detecting diazomethane (CH2N2) in the gas phase by adsorption onto the exterior surface of inorganic-based X12O12 (where X can be Be, Mg, or Ca) nanocages is investigated using DFT.
29 citations
Authors
Showing all 459 results
Name | H-index | Papers | Citations |
---|---|---|---|
Philippe Ciais | 149 | 965 | 114503 |
Jonathan Williams | 102 | 613 | 41486 |
Jos Lelieveld | 100 | 570 | 37657 |
Andrew N. Nicolaides | 90 | 572 | 30861 |
Efstathios Stiliaris | 88 | 340 | 25487 |
Leonard A. Barrie | 74 | 177 | 17356 |
Nikos Mihalopoulos | 69 | 280 | 15261 |
Karl Jansen | 57 | 498 | 11874 |
Jean Sciare | 56 | 129 | 9374 |
Euripides G. Stephanou | 54 | 128 | 14235 |
Lefkos T. Middleton | 54 | 184 | 15683 |
Elena Xoplaki | 53 | 129 | 12097 |
Theodoros Christoudias | 50 | 197 | 7765 |
Dimitris Drikakis | 49 | 286 | 7136 |
George K. Christophides | 48 | 127 | 11099 |