393 research outputs found
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2024 Portal Partners Forum Student Posters
No full textThis poster is a reflection on how immersive opportunities and skill-building, specifically cursive training, can equip student digitization assistants to consider deeper historical connections with written items. The author also details their personal cursive training as part of their reflection
Motivation of employees in a selected company
No full textTato bakalářská práce se zabývá motivací zaměstnanců ve společnosti Flexima s.r.o. Cílem práce je analýza motivace zaměstnanců ve vybraném podniku, vyhodnocení výsledků a navržení zlepšení situace v dané oblasti. První část práce je věnována literární rešerši pojmů z oblasti motivace a řízení lidských zdrojů. V části druhé je na základě dotazníkového šetření provedena analýza současné motivace zaměstnanců v uvedené společnosti a jsou navrženy změny pro zlepšení situace v dané oblasti.This bachelor thesis deals with employee motivation in Flexima s.r.o. The aim of the thesis is to analyse the motivation of employees in the selected company, to evaluate the results and to propose improvements in this area. The first part of the thesis is devoted to a literature research in the field of motivation and human resource management. In the second part, based on a questionnaire survey, an analysis of the current motivation of employees in the company is performed and suggestions are proposed to improve the situation in this area.Fakulta ekonomicko-správníStudent přednesl obhajobu práce s názvem:Motivace zaměstnanců ve vybraném podniku
Cílem práce je:analýza motivace zaměstnanců ve vybraném podniku, vyhodnocení výsledků a navržení zlepšení situace v dané oblasti.
Během rozpravy byly položeny dotazy dle posudku vedoucího bakalářské práce:
Otázka 1.: V závěru práce doporučujete pro podnik návrhy na zlepšení. Jak vedení na tyto návrhy reagovalo?
Otázka 2.: Jak přesně si představujete zavedení změny v oblasti formulování pochvaly a kritiky ve vztahu k podřízeným?
Student na položené otázky reagoval správně.
Následně byly během rozpravy položeny doplňující dotazy:
Otázka 3.: Ověřoval jste své výsledky D-testem?
Otázka 4.: Přemýšlel jste o vnitřní motivaci, dalo by se to nějak zabezpečit?
Student na položené otázky reagoval správně.Dokončená práce s úspěšnou obhajobo
Measurement of temperature and gas flow velocity in test conditions of room corner test
No full textCílem práce je shrnutí problematiky měření teploty a rychlosti proudění v podmínkách zkoušky Room Corner Test, především se zaměřuje na typy používaných měřidel, princip měření a přepočet na žádané jednotky, dále také na možnosti a vliv připevnění měřidel, konkrétně termoelektrických článků k povrchu stropní konstrukce. Vše bylo řešeno teoreticky i prakticky, teoreticky pomocí literatury popisující jednotlivá měřící zařízení a udávající metodiku zkoušení, dále vytvořením matematických modelů v sotfwaru FDS (Fire Dynamics Simulator), který je založen na metodě CFD (Computational Fluid Dynamics). V matematických modelech byla vytvořena zkušební místnost (Room Corner Test) ve zmenšeném měřítku a zadefinována potřebná měřící zařízení. Praktickou částí je provedení požárního experimentu na základě jednoho matematického modelu, kde byly navíc zkoumány již zmíněné způsoby připevnění měřidel povrchových teplot. Výsledkem práce je popis získaných informací z matematických modelů i požárního experimentu a porovnání výsledků v jednotlivých matematických modelech a vybraného modelu s požárním experimentem. V neposlední řadě diplomová práce udává směr pro možnou navazující výzkumnou činnost.The goal of the thesis is to summarize the problems of temperature and gas velocity measurement in a Room Corner Test, especially the thesis focuses on device types used during measurement, measurement principles and required unit conversion, as well as options and the impact of the attachment of the measuring devices, namely fastening thermocouples to the surface of the ceiling. Everything was handled both theoretically and practically: theoretically by using literature which describes individual measuring devices and provides the methodology of testing and by creating mathematical models in FDS (Fire Dynamics Simulator) software, which is based on the CFD (Computational Fluid Dynamics) method. A small-scale Room Corner Test was created in mathematical models and the necessary measuring devices were defined. The practical part consists of a performing a fire experiment based on one mathematical model. Mentioned methods of attachment of the devices measuring surface temperature were observed here. A description of the information acquired through mathematical models and the fire experiment is the result of the work, and also the comparison of the results in individual mathematical models and a selected model with a fire experiment. Last but not least, the thesis gives the direction for possible follow-up research activity
Measurement of CP asymmetry in D0 → K−K+ decays
No full textA measurement of the time-integrated CP asymmetry in the Cabibbo-suppressed decay D0→K−K+ is performed using pp collision data, corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. The flavour of the charm meson at production is determined from the charge of the pion in D⁎+→D0π+ and D⁎−→D‾0π− decays. The time-integrated CP asymmetry ACP(K−K+) is obtained assuming negligible CP violation in charm mixing and in Cabibbo-favoured D0→K−π+, D+→K−π+π+ and D+→K‾0π+ decays used as calibration channels. It is found to be ACP(K−K+)=(0.14±0.15 (stat)±0.10 (syst))%. A combination of this result with previous LHCb measurements yields ACP(K−K+)=(0.04±0.12 (stat)±0.10 (syst))%,ACP(π−π+)=(0.07±0.14 (stat)±0.11 (syst))%. These are the most precise measurements from a single experiment. The result for ACP(K−K+) is the most precise determination of a time-integrated CP asymmetry in the charm sector to date, and neither measurement shows evidence of CP asymmetry
Observation of the Decay Ξ − b → p K − K −
No full textDecays of the Ξ[subscript b][superscript -] and Ω[subscript b][superscript -] baryons to the charmless final states ph[superscript -]h[superscript ′-], where h[superscript (′)] denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies √s =7 and 8 TeV, corresponding to an integrated luminosity of 3 fb [superscript -1]. The decay Ξ [subscript b][superscript -] → pK[superscript -]K[superscript -] is observed with a significance of 8.7 standard deviations, and evidence at the level of 3.4 standard deviations is found for the Ξ [subscript b] [superscript -]→pK[superscript -]π[superscript -] decay. Results are reported, relative to the B[superscript -] →K[superscript +]K[superscript -]K[superscript -] normalization channel, for the products of branching fractions and b-hadron production fractions. The branching fractions of Ξ[subscript b][superscript -] →pK[superscript -]π[superscript -] and Ξ[subscript b][superscript -] → pπ[superscript -]π[superscript -] relative to Ξ[subscript b][superscript -] →pK[superscript -]K[superscript -] decays are also measured.National Science Foundation (U.S.
Observation of the Annihilation Decay Mode B-0 -> K+K-
No full textA search for the B-0 -> K+K- decay is performed using pp-collision data
collected by LHCb. The data set corresponds to integrated luminosities
of 1.0, 2.0 fb(-1) at center-of-mass energies of 7, 8 TeV,
respectively. This decay is observed for the first time with a
significance of more than 5 standard deviations. The analysis also
results in an improved measurement of the branching fraction for the
B-s(0) -> pi(+)pi(-) decay. The measured branching fractions are B(B-0
-> K+K-) = (7.80 +/- 1.27 +/- 0.81 +/- 0.21) x 10(-8), B(B-s(0) ->
pi(+)p(-)) = (6.91 +/- 0.54 +/- 0.63 +/- 0.19 +/- 0.40) x 10(-7). The
first uncertainty is statistical the second is systematic the third is
due to the uncertainty on the B-0 -> K+pi(-) branching fraction used as
a normalization. For the B-s(0) mode the fourth accounts for the
uncertainty on the ratio of the probabilities for b quarks to hadronize
into B-s(0), B-0 mesons
Observation of Bc+→J/ψD(*)K(*) decays
No full textA search for the decays
B
+
c
→
J
/
ψ
D
(
*
)
0
K
+
and
B
+
c
→
J
/
ψ
D
(
*
)
+
K
*
0
is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of
3
fb
−
1
. The decays
B
+
c
→
J
/
ψ
D
0
K
+
and
B
+
c
→
J
/
ψ
D
*
0
K
+
are observed for the first time, while first evidence is reported for the
B
+
c
→
J
/
ψ
D
*
+
K
*
0
and
B
+
c
→
J
/
ψ
D
+
K
*
0
decays. The branching fractions of these decays are determined relative to the
B
+
c
→
J
/
ψ
π
+
decay. The
B
+
c
mass is measured, using the
J
/
ψ
D
0
K
+
final state, to be
6274.28
±
1.40
(
stat
)
±
0.32
(
syst
)
MeV
/
c
2
. This is the most precise single measurement of the
B
+
c
mass to date
Measurement of CP observables in B-+/- -> D(*)K-+/- and B-+/- -> D(*)pi(+/-) decays
No full textMeasurements of CP observables in B-+/- -> D(*)K-+/- and B-+/- -> D(*)pi(+/-) decays are presented, where D(*) indicates a neutral Dor D* meson that is an admixture of D(*)(0) and (D) over bar(*)(0) states. Decays of the D* meson to the D pi(0)and D gamma final states are partially reconstructed without inclusion of the neutral pion or photon, resulting in distinctive shapes in the Bcandidate invariant mass distribution. Decays of the D meson are fully reconstructed in the K-+/-pi(-/+), K+K- and pi(+)pi(-) final states. The analysis uses a sample of charged Bmesons produced in ppcollisions collected by the LHCb experiment, corresponding to an integrated luminosity of 2.0, 1.0 and 2.0fb- 1taken at centre- of- mass energies of root s = 7, 8 and 13 TeV, respectively. The study of B-perpendicular to -> D*K-perpendicular to and B-perpendicular to -> D*pi(perpendicular to) decays using a partial reconstruction method is the first of its kind, while the measurement of B-+/- -> DK +/- and B-+/- -> D pi(+/-) decays is an update of previous LHCb measurements. The B-+/- -> DK +/- results are the most precise to date. (c) 2017 The Author. Published by Elsevier B. V
Fracture Mechanics Concepts for Evaluation of Irradiated Reactor Pressure Vessel Material Behavior
No full textMeasurement of the CP violation parameter AΓ in D0 → K+K- and D0 → π+π- decays
No full textAsymmetries in the time-dependent rates of
D
0
→
K
+
K
−
and
D
0
→
π
+
π
−
decays are measured in a
p
p
collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of
3
fb
−
1
. The asymmetries in effective decay widths between
D
0
and
¯¯¯
D
0
decays, sensitive to indirect
C
P
violation, are measured to be
A
Γ
(
K
+
K
−
)
=
(
−
0.30
±
0.32
±
0.10
)
×
10
−
3
and
A
Γ
(
π
+
π
−
)
=
(
0.46
±
0.58
±
0.12
)
×
10
−
3
, where the first uncertainty is statistical and the second systematic. These measurements show no evidence for
C
P
violation and improve on the precision of the previous best measurements by nearly a factor of two
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