99 research outputs found
NONDESTRUCTIVE INVESTIGATION METHODS FOR MECHANICAL EQUIPMENT: THERMAL & ULTRASOUND
Maintenance of mechanical equipment based on NDT methods has seen unprecedented development inrecent years due to the many advantages these methods: investigations are done remotely, without putting theoperator at risk and monitoring mechanical equipment can highlight potential problems that can be detectedlong before they escalate into serious fault. Well-regarded inspection tools include thermal inspections,vibration analysis, oil and ultrasound analysi
Main Features of Prevalence and Severity of Major Depressive Episode in Romania
The objectives of the current article are to present some nationally representative estimates of lifetime, 12-months prevalence of MDE the age of onset, years in episode, the effects of MDE on role impairment. The lifetime prevalence of MDE was 3.3% for âall agesâ, with higher values for females than for males (4.1% versus 2.5%) and the prevalence estimates of CIDI/DSM-IV 12-months Major Depressive Episode (MDE) was 1.8% (2.2% for females and 1.4% for males). Approximately half of those with lifetime prevalence MDE presented 12-months MDE too (53.8%). Within the age groups â18-34â, âall agesâ and â50-64â, the females have the mean onset of MDE earlier than males (a slight difference for the first two situations, a difference of about 8 years for the latter). Within the age groups â35-49â of â65 years and overâ, the males have the onset of MDE earlier than the females with 3-4 years. Regarding the mean number of years in episode, for all subjects was found a value of 5.7 years. Symptom severity assessed with the Quick Inventory of Depressive Symptomatology Self Report (QIDS-SR), revealed that almost two thirds of cases with MDE were âsevereâ or âvery severeâ from clinical point of view. Number of weeks depressed in the 365 days before the interview, expressed as mean was 30.8 for those with âsevereâ symptoms/domain. In the past 30 days, the highest WHODAS score was for out of role domain (36.2), then for mobility (14.6). Regarding the number of days out of role in the last year due to depression, this was 82.1 for the age group â50-64â and 63.5 for those of â65 years old and overâ. Major Depression Episode is a seriously impairment condition. The severe consequences of the depression on functioning in labour and social areas call attention to the need for early diagnostic, proper treatment and intervention. Key words: major depressive episode, lifetime prevalence, 12-mo prevalence, Sheehan score, disability assessment schedul
Analysis of Gross Domestic Product Evolution under the Influence of the Final Consumption
This paper will focus on the possible correlation between the evolution of the
final consumption and the dynamics of the Gross Domestic Product. The authors have
applied the linear regression method in order to draw a coherent model, whose parameters
were tested by using proper instruments
THE DIGITALIZATION PROCESS OF ROMANIAN PUBLIC ADMINISTRATION BETWEEN NECESSITY AND EFFICIENCY
The digitalization of public administration is a pertinent and significant subject matter at the European Union
level, and by extension, at the national level in Romania. The primary goal of this study is to examine the process of
digitalization in public administration and assess the implications generated by the adoption of e-government services
on several macroeconomic variables, namely economic growth, quality of life and potential growth. In this perspective,
we shall undertake an analysis of the advantages that digitalization confers, as well as the trajectory that digitalization
follows within Romaniaâs public administration. Also, the paper shows several models of best practices with varying
levels of digitalization observed within public administration and public services at the European Union (EU) level, as
a possible direction that Romanian policy makers can adopt, considering the current level of digitalization and the
competitiveness environment al EU level when it comes to the future of IT&C. The paper concludes that countries that
had a forward-looking perspective and adopted digitalization measures for public administration in the past will now
use the Recovery and Resilience Funds to develop Internet 4.0 elements to solve problems and compute data, as a way
of revolutionizing how governments operate and serve their citizens
Study of forward Z + jet production in pp collisions at âs=7 TeV
A measurement of the +jet production cross-section in collisions at a centre-of-mass energy TeV is presented. The analysis is based on an integrated luminosity of recorded by the LHCb experiment. Results are shown with two jet transverse momentum thresholds, 10 and 20 GeV, for both the overall cross-section within the fiducial volume, and for six differential cross-section measurements. The fiducial volume requires that both the jet and the muons from the Z boson decay are produced in the forward direction (). The results show good agreement with theoretical predictions at the second-order expansion in the coupling of the strong interaction.A measurement of the +jet production cross-section in collisions at a centre-of-mass energy TeV is presented. The analysis is based on an integrated luminosity of recorded by the LHCb experiment. Results are shown with two jet transverse momentum thresholds, 10 and 20 GeV, for both the overall cross-section within the fiducial volume, and for six differential cross-section measurements. The fiducial volume requires that both the jet and the muons from the Z boson decay are produced in the forward direction (). The results show good agreement with theoretical predictions at the second-order expansion in the coupling of the strong interaction
A study of CP violation in B-+/- -> DK +/- and B-+/- -> D pi(+/-) decays with D -> (KSK +/-)-K-0 pi(-/+) final states
A first study of CP violation in the decay modes and , where labels a or meson and labels a or meson, is performed. The analysis uses the LHCb data set collected in collisions, corresponding to an integrated luminosity of 3 fb. The analysis is sensitive to the CP-violating CKM phase through seven observables: one charge asymmetry in each of the four modes and three ratios of the charge-integrated yields. The results are consistent with measurements of using other decay modes
Study of the rare B-s(0) and B-0 decays into the pi(+) pi(-) mu(+) mu(-) final state
A search for the rare decays and is performed in a data set corresponding to an integrated luminosity of 3.0 fb collected by the LHCb detector in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. Decay candidates with pion pairs that have invariant mass in the range 0.5-1.3 GeV/ and with muon pairs that do not originate from a resonance are considered. The first observation of the decay and the first evidence of the decay are obtained and the branching fractions are measured to be and , where the third uncertainty is due to the branching fraction of the decay , used as a normalisation.A search for the rare decays Bs0âÏ+ÏâÎŒ+ÎŒâ and B0âÏ+ÏâÎŒ+ÎŒâ is performed in a data set corresponding to an integrated luminosity of 3.0 fbâ1 collected by the LHCb detector in protonâproton collisions at centre-of-mass energies of 7 and 8 TeV . Decay candidates with pion pairs that have invariant mass in the range 0.5â1.3 GeV/c2 and with muon pairs that do not originate from a resonance are considered. The first observation of the decay Bs0âÏ+ÏâÎŒ+ÎŒâ and the first evidence of the decay B0âÏ+ÏâÎŒ+ÎŒâ are obtained and the branching fractions, restricted to the dipion-mass range considered, are measured to be B(Bs0âÏ+ÏâÎŒ+ÎŒâ)=(8.6±1.5 (stat)±0.7 (syst)±0.7(norm))Ă10â8 and B(B0âÏ+ÏâÎŒ+ÎŒâ)=(2.11±0.51(stat)±0.15(syst)±0.16(norm))Ă10â8 , where the third uncertainty is due to the branching fraction of the decay B0âJ/Ï(âÎŒ+ÎŒâ)Kâ(892)0(âK+Ïâ) , used as a normalisation.A search for the rare decays Bs0âÏ+ÏâÎŒ+ÎŒâ and B0âÏ+ÏâÎŒ+ÎŒâ is performed in a data set corresponding to an integrated luminosity of 3.0 fbâ1 collected by the LHCb detector in protonâproton collisions at centre-of-mass energies of 7 and 8 TeV . Decay candidates with pion pairs that have invariant mass in the range 0.5â1.3 GeV/c2 and with muon pairs that do not originate from a resonance are considered. The first observation of the decay Bs0âÏ+ÏâÎŒ+ÎŒâ and the first evidence of the decay B0âÏ+ÏâÎŒ+ÎŒâ are obtained and the branching fractions, restricted to the dipion-mass range considered, are measured to be B(Bs0âÏ+ÏâÎŒ+ÎŒâ)=(8.6±1.5 (stat)±0.7 (syst)±0.7(norm))Ă10â8 and B(B0âÏ+ÏâÎŒ+ÎŒâ)=(2.11±0.51(stat)±0.15(syst)±0.16(norm))Ă10â8 , where the third uncertainty is due to the branching fraction of the decay B0âJ/Ï(âÎŒ+ÎŒâ)Kâ(892)0(âK+Ïâ) , used as a normalisation.A search for the rare decays and is performed in a data set corresponding to an integrated luminosity of 3.0 fb collected by the LHCb detector in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. Decay candidates with pion pairs that have invariant mass in the range 0.5-1.3 GeV/ and with muon pairs that do not originate from a resonance are considered. The first observation of the decay and the first evidence of the decay are obtained and the branching fractions, restricted to the dipion-mass range considered, are measured to be and , where the third uncertainty is due to the branching fraction of the decay , used as a normalisation
Measurement of the (eta c)(1S) production cross-section in proton-proton collisions via the decay (eta c)(1S) -> p(p)over-bar
The production of the state in proton-proton collisions is probed via its decay to the final state with the LHCb detector, in the rapidity range GeV/c. The cross-section for prompt production of mesons relative to the prompt cross-section is measured, for the first time, to be at a centre-of-mass energy TeV using data corresponding to an integrated luminosity of 0.7 fb, and at TeV using 2.0 fb. The uncertainties quoted are, in order, statistical, systematic, and that on the ratio of branching fractions of the and decays to the final state. In addition, the inclusive branching fraction of -hadron decays into mesons is measured, for the first time, to be , where the third uncertainty includes also the uncertainty on the inclusive branching fraction from -hadron decays. The difference between the and meson masses is determined to be MeV/c.The production of the state in proton-proton collisions is probed via its decay to the final state with the LHCb detector, in the rapidity range . The cross-section for prompt production of mesons relative to the prompt cross-section is measured, for the first time, to be at a centre-of-mass energy using data corresponding to an integrated luminosity of 0.7Â fb , and at using 2.0Â fb . The uncertainties quoted are, in order, statistical, systematic, and that on the ratio of branching fractions of the and decays to the final state. In addition, the inclusive branching fraction of -hadron decays into mesons is measured, for the first time, to be , where the third uncertainty includes also the uncertainty on the inclusive branching fraction from -hadron decays. The difference between the and meson masses is determined to be .The production of the state in proton-proton collisions is probed via its decay to the final state with the LHCb detector, in the rapidity range GeV/c. The cross-section for prompt production of mesons relative to the prompt cross-section is measured, for the first time, to be at a centre-of-mass energy TeV using data corresponding to an integrated luminosity of 0.7 fb, and at TeV using 2.0 fb. The uncertainties quoted are, in order, statistical, systematic, and that on the ratio of branching fractions of the and decays to the final state. In addition, the inclusive branching fraction of -hadron decays into mesons is measured, for the first time, to be , where the third uncertainty includes also the uncertainty on the inclusive branching fraction from -hadron decays. The difference between the and meson masses is determined to be MeV/c
Search for the lepton flavour violating decay tau(-) -> mu(-)mu(+)mu(-)
A search for the lepton flavour violating decay is performed with the LHCb experiment. The data sample corresponds to an integrated luminosity of 1.0 fb of proton-proton collisions at a centre-of-mass energy of 7 TeV and 2.0 fb at 8 TeV. No evidence is found for a signal, and a limit is set at 90% confidence level on the branching fraction, .A search for the lepton flavour violating decay Ï â ÎŒ ÎŒ ÎŒ is performed with the LHCb experiment. The data sample corresponds to an integrated luminosity of 1.0 fb of proton-proton collisions at a centre-of-mass energy of 7 TeV and 2.0 fb at 8 TeV. No evidence is found for a signal, and a limit is set at 90% confidence level on the branching fraction, .A search for the lepton flavour violating decay is performed with the LHCb experiment. The data sample corresponds to an integrated luminosity of of proton-proton collisions at a centre-of-mass energy of and at . No evidence is found for a signal, and a limit is set at confidence level on the branching fraction,
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