Search results for "2S"
showing 7 items of 1037 documents
CuO un Bi2Se3 nanovadu ar kontrolētām īpašībām iegūšana pielietojumiem nanoierīču aktīvajos elementos
2021
Pusvadītāju nanovadi ir perspektīvi materiāli pielietojumiem nanoelektromehāniskās (NEM) ierīcēs. Lai nanovadi būtu piemēroti industriāliem pielietojumiem, nepieciešams izstrādāt tādas sintēzes metodes, kas nodrošinātu paredzamu iznākumu, morfoloģiju, elektriskās un mehāniskās īpašības sintezētajiem nanovadiem. Lai nodrošinātu NEM slēdžu darbību ekstrēmos apstākļos, nepieciešams iegūt plašā temperatūru diapazonā pielietojamus nanovadus. Pielietojumiem istabas temperatūrā tika pētīti CuO un ar Sn dopēti Ge nanovadi. CuO nanovadi tika sintezēti ar pārveidotu termiskās oksidācijas metodi. Tika izpētīts, kā, papildinot termisko oksidāciju ar elektrisko lauku un ūdens tvaiku klātbūtni, iespējams…
Search for the double-beta decay of 82Se to the excited states of 82Kr with NEMO-3
2020
The double-beta decay of 82Se to the 0+1 excited state of 82Kr has been studied with the NEMO-3 detector using 0.93 kg of enriched 82Se measured for 4.75 y, corresponding to an exposure of 4.42 kg y. A dedicated analysis to reconstruct the gamma-rays has been performed to search for events in the 2e2g channel. No evidence of a 2nbb decay to the 0+1 state has been observed and a limit of T2n 1/2(82Se; 0+gs -> 0+1) > 1.3 1021 y at 90% CL has been set. Concerning the 0nbb decay to the 0+1 state, a limit for this decay has been obtained with T0n 1/2(82Se; 0+g s -> 0+1) > 2.3 1022 y at 90% CL, independently from the 2nbb decay process. These results are obtained for the first time with a tracko-…
Bi-2212 and Y123 highly curved single-crystal-like objects: whiskers, bows and ring-like structures
2012
High-temperature superconducting objects of Bi2Sr2CaCu2O8 and Y Ba2Cu3O7 highly curved in the ab-plane, such as curved/kinked whiskers, bows and ring-like structures, were obtained within a solid?liquid?solid (SLS) grass-like growth mechanism. As-grown objects are crystals with three-dimensional epitaxy similar to conventional single crystals: they can be viewed as crystal parts ?cut? from a conventional rectangular crystal. Between our curved objects and conventional crystals, whiskers or thin films there are some differences in the superconducting properties induced only by the shape factors and no new physics is observed. Some details of the growth mechanism are discussed, emphasizing cu…
SNP and SML estimation of univariate and bivariate binary–choice models
2008
We discuss the semi-nonparametric approach of Gallant and Nychka (1987, Econometrica 55: 363–390), the semiparametric maximum likelihood approach of Klein and Spady (1993, Econometrica 61: 387–421), and a set of new Stata commands for semiparametric estimation of three binary-choice models. The first is a univariate model, while the second and the third are bivariate models without and with sample selection, respectively. The proposed estimators are root-n consistent and asymptotically normal for the model parameters of interest under weak assumptions on the distribution of the underlying error terms. Our Monte Carlo simulations suggest that the efficiency losses of the semi-nonparametric a…
Characterization of synthetic Fe-Mg silicate spinels in the gamma-(Mgx,Fe1-x)2SiO4 series by means of single crystal XRD (x=0,0.4,0.5)
2009
CCDC 1814033: Experimental Crystal Structure Determination
2018
Related Article: Guocheng Deng, Sami Malola, Juanzhu Yan, Yingzi Han, Peng Yuan, Chaowei Zhao, Xiting Yuan, Shuichao Lin, Zichao Tang, Boon K. Teo, Hannu Häkkinen, Nanfeng Zheng|2018|Angew.Chem.,Int.Ed.|57|3421|doi:10.1002/anie.201800327
"Table 37" of "Investigations of anisotropic flow using multi-particle azimuthal correlations in pp, p-Pb, Xe-Xe, and Pb-Pb collisions at the LHC"
2019
$v_2\{6\}$ with 2-subevent method in Pb-Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV.