Search results for "2S"
showing 10 items of 1037 documents
"Table 11" of "$\Upsilon$ production and nuclear modification at forward rapidity in Pb-Pb collisions at $\mathbf{\sqrt{\textit{s}_{\textbf{NN}}}=5.0…
2021
Interpolated production cross sections and cross-section ratio for $\Upsilon(1\mathrm{S}) \rightarrow \mu^{+}\mu^{-}$ and $\Upsilon(2\mathrm{S}) \rightarrow \mu^{+}\mu^{-}$ in proton–proton collisions, integrated over the rapidity interval 2.5–4.0 and $p_{\mathrm{T}} <$ 15 GeV/$c$. Results used for the determination of the integrated nuclear modification factors and of the nuclear modification factors as a function of centrality (Figures 4 and 5 (right)).
"Table 10" of "$\Upsilon$ production and nuclear modification at forward rapidity in Pb-Pb collisions at $\mathbf{\sqrt{\textit{s}_{\textbf{NN}}}=5.0…
2021
Nuclear modification factor of $\Upsilon(2\mathrm{S})$ as a function of rapidity for the 0–90% centrality interval.
Łojasiewicz exponents, the integral closure of ideals and Newton polyhedra
2003
We give an upper estimate for the Łojasiewicz exponent $\ell(J,I)$ of an ideal $J\subseteq A(K^{n})$ with respect to another ideal I in the ring $A(K^{n})$ of germs analytic functions $f$ : $(K^{n},\mathrm{O})\rightarrow K$ , where $K=C$ or $R$ , using Newton polyhedrons. In particular, we give a method to estimate the Łojasiewicz exponent $\alpha_{0}(f)$ of a germ $f\in A(K^{n})$ that can be applied when $f$ is Newton degenerate with respect to its Newton polyhedron.
Thermomineral waters of Greece: geochemical characterization
2020
Sb2S3 nanovadu fotoelektriskās īpašības
2015
Perspektīvā nanovadus varēs izmantot sensoros, slēdžos, saules baterijās un citās optoelektriskajās ierīcēs, ņemot vērā to lielo virsmas un tilpuma attiecību. Pateicoties šai attiecībai, fizikālās īpašības nanoizmēros ir izteiktākas nekā makroskopiskos izmēros. Līdz šim nebija iespējams iegūt informāciju par Sb2S3 nanovadu fotoelektriskajām īpašībām. Darbā tika pētītas Sb2S3 nanovadu fotoelektriskās īpašības atkarībā no ierosinātās gaismas viļņu garuma, uzņemot I-V un fotostrāvas raksturlīknes. Darbā tika pētīta Sb2S3 nanovadu piemērotība dažādu optoelektrisko ierīču izstrādē. Anodētā alumīnija oksīda (AAO) matricā iekapsulēto nanovadu masīvu īpašības tika salīdzinātas ar individuālo nanova…
New insight into the systematic position of the endemic Madagascan genus Amberiana (Hemiptera: Heteroptera: Dinidoridae) using 12S rDNA sequences
2015
The systematic position of the endemic Madagascan genus Amberiana Dist. İs studied using DNA sequences (the mitochondrial 12S rDNA subunit) for the first time. The phylogenetic relationships within the superfamily Pentatomoidea were computed using neighbor-joining, maximum parsimony, minimum evolution, and maximum likelihood methods, as well as Bayesian estimation. All results based on the mtDNA analyses stand in contrast with previous morphological data. The mtDNA analysis showed close relationships of the genus Amberiana to the genus Sehirus (Cydnidae: Sehirinae) and to species of the family Parastrachiidae, whereas the morphology indicated that the genus was a typical representative of t…
Photocatalytic green synthesis of piperonal in aqueous TiO2 suspension
2014
Abstract Piperonal (heliotropine or 3,4-methylenedioxybenzaldehyde) has been synthesized by oxidizing piperonyl alcohol in aqueous UV-irradiated TiO2 suspensions. This compound was identified by GC–MS chromatography, 1H NMR and melting point determination. The other products of the photoprocess were 1,3-bis(3,4-(methylenedioxy)benzyl) ether (found in traces) and CO2, derived from the parallel pathway of photo-mineralization. Commercial and home-prepared TiO2 samples have been tested and the best selectivity (ca. 35%) was obtained by using the home-prepared ones. The reported green process allows to obtain an added value product (piperonal), upon partial oxidation of a cheap reagent.
"Table 1" of "Measurement of Upsilon production in 7 TeV pp collisions at ATLAS"
2013
Corrected cross-section measurements in the isotopic spin-alignment scenario. The second (sys) error is the uncertainty in the luminosity.
Bismuta selenīda nanovadu integrēšana nanoelektromehāniskos slēdžos un to raksturošana
2022
Bi2Se3 nanovadu integrēšana nanoelektromeāniskās ierīcēs un to raksturošana. Dzene E., zinātniskie vadītāji Mg. Phys. Jasulaņeca L. un Dr. Chem. Erts D. Bakalaura darbs, 37 lappuses, 39 attēli, 35 literatūras avoti, 1 pielikums. Latviešu valodā. Darbs veltīts Bi2Se3 nanovadu sakārtošanai uz metāla elektrodiem, atsevišķu nanovadu elektriskajai raksturošanai, kā arī NEM slēdžu izveidei un to darbības demonstrēšanai kriogēnās temperatūrās. Veikta nanovadu sintēze, suspensijas pagatavošana, elektrodu izgatavošana un nanovadu sakārtošana uz elektrodiem ar mērķi izveidot nanoelektromehāniskus slēdžus. Izveidotajam slēdzim demonstrēta elektromehāniska pārslēgšanās kriogēnās temperatūrās.
Magnetotransport Studies of Encapsulated Topological Insulator Bi2Se3 Nanoribbons
2022
This research was funded by the Latvian Council of Science, project “Highly tunable surface state transport in topological insulator nanoribbons”, No. lzp-2020/2-0343, and by the European Union’s Horizon 2020 research and innovation program, Grant Agreement No. 766714/ HiTIMe. Institute of Solid-State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2.