Search results for "drons"
showing 10 items of 512 documents
"Table 1" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Experimental differential Thrust distributions.
"Table 8" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
The differential 2-jet rate D2 as a function of YCUT.
Botāniskā dārza sekciju "Augu daudzveidības pētījumi ex situ", "Augu selekcija un introdukcija" tēžu krājums (2018. gada 1. februāris, LU Botāniskais…
2018
Latvijas Universitātes 76. starptautiskās zinātniskā konferences Botāniskā dārza sekciju "Augu daudzveidības pētījumi ex situ" un "Augu selekcija un introdukcija" tēžu krājums. Sekciju sēdes notiek 2018. gada 1. februārī LU Botāniskajā dārzā Rīgā, Kandavas ielā 2.
Conceptual design and simulation of a water Cherenkov muon veto for the XENON1T experiment
2014
XENON is a direct detection dark matter project, consisting of a time projection chamber (TPC) that uses xenon in double phase as a sensitive detection medium. XENON100, located at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, is one of the most sensitive experiments of its field. During the operation of XENON100, the design and construction of the next generation detector (of ton-scale mass) of the XENON project, XENON1T, is taking place. XENON1T is being installed at LNGS as well. It has the goal to reduce the background by two orders of magnitude compared to XENON100, aiming at a sensitivity of $2 \cdot 10^{-47} \mathrm{cm}^{\mathrm{2}}$ for a WIMP mass of 50 GeV/c$^{2}$. With…
Search for weakly decaying b -flavored pentaquarks
2018
Investigations of the existence of pentaquark states containing a single $b$ (anti)quark decaying weakly into four specific final states J/$\psi K^+\pi^- p$, J/$\psi K^- \pi^- p$, J/$\psi K^- \pi^+ p$, and $J/\psi \phi (1020) p$ are reported. The data sample corresponds to an integrated luminosity of 3.0/fb in 7 and 8 TeV pp collisions acquired with the LHCb detector. Signals are not observed and upper limits are set on the product of the production cross section times branching fraction with respect to that of the $\Lambda_b$.
Synthesis of Globular Precursors
2015
o-Carborane (C2 B10 H12 ) was adapted to perform as the core of globular macromolecules, dendrons or dendrimers. To meet this objective, precisely defined substitution patterns of terminal olefin groups on the carborane framework were subjected to Heck cross-coupling reactions or hydroboration leading to hydroxyl terminated arms. These led to new terminal groups (chloro, bromo, and tosyl leaving groups, organic acid, and azide) that permitted ester production, click chemistry, and oxonium ring opening to be performed as examples of reactions that demonstrate the wide possibilities of the globular icosahedral carboranes to produce new dendritic or dendrimer-like structures. Polyanionic speci…
Single electron yields from semileptonic charm and bottom hadron decays in Au+Au collisions at √sNN = 200 GeV
2016
The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy flavor production in minimum bias Au + Au collisions at √sNN = 200 GeV via the yields of electrons from semileptonic decays of charm and bottom hadrons. Previous heavy flavor electron measurements indicated substantial modification in the momentum distribution of the parent heavy quarks owing to the quark-gluon plasma created in these collisions. For the first time, using the PHENIX silicon vertex detector to measure precision displaced tracking, the relative contributions from charm and bottom hadrons to these electrons as a function of transverse momentum are measured in Au + Au collisions. We compare …
"Table 3" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Hadronic cross section measured with the 1995 data. Additional systematic error of 0.10 PCT (efficiencies and backgrounds) and 0.11 PCT (absolute luminosity).
"Table 1" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Hadronic cross section measured with the 1993 data. Additional systematic error of 0.10 PCT (efficiencies and backgrounds) and 0.29 PCT (absolute luminosity).
Spektra menedžeris datu iegūšanai uz Android OS, lietojot dronu
2017
Super augsto frekvenču viļņu spektra analīzi no gaisa var veikt ar helikopteru, bet tā ir dārga metode un šo darbu varētu nomainīt droni. Darba mērķis bija izpētīt, vai saziņa starp spektra analizatoru, izmantojot drona saziņas kanālu, un mobilo ierīci, spēj notikt pietiekoši efektīvi un stabili, lai saņemtie un apstrādātie datu būtu noderīgi reālam darbam. Uzdevums bija radīt programmatūru mobilajai ierīcei, kas spētu izmantot drona programmatūras izstrādnes un izmantojot tās sazināties ar spektra analizatoru, kā arī spētu saņemt, apstrādāt un attēlot reālā laika datus uz ekrāna, kā arī ļaut uz ekrāna veikt citas lietotājam nepieciešamās darbības spektra analīzei. Izpildot uzdevumus un izp…