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Roads exposure to blizzard phenomenon in the plain area of Buzau county (Romania)
ROMULUS COSTACHE
Cinq Continents , 2012,
Abstract: L'exposition à la tempête de neige des routes dans les plaines de Buz u. Les plaines des Buz u represéntent unes des plus vulnérables zones au phénomène de la tempête de neige. Cette phénomèn produit le plus grand dommage en ce qui concerne la functionnement des routes, causant souvent leur bloc. Les plus vulnérables routes dans cette zone, en fonction de leur importance économique, sont les routes reliant les villes de Buz u, Ramnicu S rat et Pogoanele avec les résidences du comté voisin, et la route européen 85 avec la région du Moldavie. La carte de la vulnérabilité des routes dans les plaines de Buz u montre que les routes plus exposé sont E85 et DN 22 (entre Ramnicu S rat et Br ila).
Pipera Neighborhood - Voluntari City (Romania). Problems regarding inconsistency between the residential dynamic and the street network evolution between 2002 and 2011
ROMULUS COSTACHE,IONUT TUDOSE
Cinq Continents , 2012,
Abstract: Les problèmes de la croissance résidentielle et l'évolution du réseauroutier entre 2002 et 2011. La période de l’explosion immobilière a déterminé,seulement en dix ans, le doublage de la surface occupée par la zone résidentielle du quartier de Pipera. Le développement dans un rythme plus lent de la texture de la rue a déterminé l’apparition d’une série de problèmes dans les nouveaux quartiers de villas qui se référent surtout { l’accessibilité difficile dans cette zone, mais aussi {l’infrastructure utilitaire. Pour représenter spatialement les zones avec des problèmes, on a réalise, { l’aide des techniques GIS, la Carte des discordances entre la dynamique résidentielle et celle du réseau de la rue entre 2002-2011. On a utilisé la relation de la soustraction entre l’évolution de la densité des maisons dans dix ans et l’évolution de l’accessibilité donnée par la texture de la rue. On a détermine l’accessibilité par le produit de la densité des voies et la qualité de celles-ci. Les zones avec des problèmes identifiés sur le terrain sont, surtout, les nouveaux quartiers des promoteurs immobiliers, avec une grande densité des villas.
The temporal dynamic of the precipitations regime in the Basca Chiojdului Basin (Romania) and its impact on the surface flow regime
ROMULUS COSTACHE,,REMUS PR?V?LIE
Cinq Continents , 2012,
Abstract: Dynamique temporelle des précipitations dans la bassin de Basca Chiojdului et des impacts du déversement. Au cours des dernières décennies on remarque une forte variation des quantités pluviométriques dans la région de Courbure (les Carpates et les Sous-Carpates), l’empreinte laissée dans le régime de l’écoulement superficiel étant ressentie y compris dans la zone d’étude. L’analyse spatiotemporelle des précipitations dans la période des années 1962-1998 ainsi que la corrélation avec la variation des débits dans le Bassin Basca Chiojdului, mettent en évidence une forte diminution des quantités pluviométriques après 1980, les effets directs se retrouvant dans le régime de l’écoulement superficiel dans le même temps que la diminution simultanée des débits. Bien qu’il y ait aussi des facteurssecondaires qui influent sur le régime de l’écoulement superficiel, cet article envisage d’analyser en particulier la manière où la variation du principal facteur déterminant, les précipitations, conditionne directement le régime de l’écoulement du cours d’eau principal, Basca Chiojdului.
Health Newscasts for Increasing Influenza Vaccination Coverage: An Inductive Reasoning Game Approach
Romulus Breban
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0028300
Abstract: Both pandemic and seasonal influenza are receiving more attention from mass media than ever before. Topics such as epidemic severity and vaccination are changing the way in which we perceive the utility of disease prevention. Voluntary influenza vaccination has been recently modeled using inductive reasoning games. It has thus been found that severe epidemics may occur because individuals do not vaccinate and, instead, attempt to benefit from the immunity of their peers. Such epidemics could be prevented by voluntary vaccination if incentives were offered. However, a key assumption has been that individuals make vaccination decisions based on whether there was an epidemic each influenza season; no other epidemiological information is available to them. In this work, we relax this assumption and investigate the consequences of making more informed vaccination decisions while no incentives are offered. We obtain three major results. First, individuals will not cooperate enough to constantly prevent influenza epidemics through voluntary vaccination no matter how much they learned about influenza epidemiology. Second, broadcasting epidemiological information richer than whether an epidemic occurred may stabilize the vaccination coverage and suppress severe influenza epidemics. Third, the stable vaccination coverage follows the trend of the perceived benefit of vaccination. However, increasing the amount of epidemiological information released to the public may either increase or decrease the perceived benefit of vaccination. We discuss three scenarios where individuals know, in addition to whether there was an epidemic, (i) the incidence, (ii) the vaccination coverage and (iii) both the incidence and the vaccination coverage, every influenza season. We show that broadcasting both the incidence and the vaccination coverage could yield either better or worse vaccination coverage than broadcasting each piece of information on its own.
Search For New Physics at BABAR
Godang, Romulus
High Energy Physics - Phenomenology , 2013,
Abstract: Using a full BABAR data sample of 426 $fb^{-1}$, we present improved measurements of the ratio ${\cal{R}}(D^{(*)}) = {\cal{B}} (\bar{B} \to D^{(*)}\tau^{-}\bar{\nu}_{\tau})/$ ${\cal{B}} (\bar{B} \to D^{(*)}\ell_{\ell}^{-}\bar{\nu}_{\ell})$, where $\ell$ is either electron or muon. We measure ${\cal{R}}(D) = 0.440 \pm 0.058 \pm 0.042$ and ${\cal{R}}(D^*) = 0.332 \pm 0.024 \pm 0.018$. These ratios exceed the Standard Model predictions by $2.0\sigma$ and $2.7\sigma$, respectively. The results disagree with the Standard Model predictions at the level of $3.4\sigma$. The ratios are sensitive to new physics contributions in the form of a charged Higgs boson. However, the access cannot be explained by a charged Higgs boson in the type II two-Higgs-doublet model.
Charm Decays and Spectroscopy at BABAR
Godang, Romulus
High Energy Physics - Phenomenology , 2013,
Abstract: We present searches for rare charm decays of the form $X_c^+ \to h^{\pm} \ell^{\mp} \ell^{(')^+}$, where $X_c^+$ is a charm hadron either $D^+$, $D_s^+$, or $\Lambda_c^+$, and $\ell^{(')^{\pm}}$ is an electron or muon. These modes are based on 384 $fb^{-1}$ of $e^+ e^-$ annihilation data collected at the $\Upsilon(4S)$ resonance with the BABAR detector at the SLAC National Accelerator Laboratory. We also present the flavor-changing neutral-current decays $D^0 \to e^+e^-$, $D^0 \to \mu^+ \mu^-$, and $D^0 \to e^{\pm} \mu^{\mp}$ that corresponds to an integrated luminosity of 468 $fb^{-1}$ of data. The decay $D^0 \to e^+ \mu^-$ is further lepton-flavor violating, and thus occur only through very slow neutrino mixing. These decays constitute sensitive probes for possible new-physics contribution. We report new limits on the branching fractions of these decays.
Romanian Democracy, Theory and Method
Romulus Brancoveanu
Sfera Politicii , 2013,
Abstract: This is a comment on the type of democracy in Romania, as illiberal democracy. Given the Romanian democratization process, we can hope that, in the future, all populisms and politicization will cease, and a true liberal and constitutional democracy will be installed, which will not be a Romanian democracy” as Paul Wolfowitz suggested to be exported in Iraq. The question is whether it is good or not to export” such a political model. Romanian democracy” could be an exporting model only as an alternative to dictatorship and under the assumption that it will be adjusted in time, under the external pressure.
Why Networking matters?
Romulus OPRICA
Bulletin of the Transilvania University of Bra?ov. Series VII : Social Sciences and Law , 2012,
Abstract: The business bureaucracy, in general, makes the majority of the managers (both top and middle management) neglect a key matter of success (both personal and businesslike): networking. The present paper wishes to raise a series of questions regarding Herminia Ibarra’s theory referring to the networking styles of managers on the basis of her own research on a series of managers included in the 100 top young managers” catalogue of Business Magazin.
BABAR Results on CP Violation in B Decays
Romulus Godang
Physics , 2011,
Abstract: We report on the study of the decay $B^+ \to D^0(\bar{D0}) K^+$ where $D^0$ and $\bar{D0}$ decaying to $K \pi \pi^0$, with the Atwood Dunietz and Soni (ADS) method. We measure the ratios Rads, $R^+$, $R^-$ since the processes $B^+ \to D^0 \bar{K^+}$ and $B^+ \to D^0 K^+$ are proportional to $V_{cb}$ and $V_{ub}$, respectively, are sensitive to $r_B$ and to the weak phase $\gamma$.
Search For New Physics at BABAR
Romulus Godang
Physics , 2013, DOI: 10.1051/epjconf/20134915002
Abstract: Using a full BABAR data sample of 426 $fb^{-1}$, we present improved measurements of the ratio ${\cal{R}}(D^{(*)}) = {\cal{B}} (\bar{B} \to D^{(*)}\tau^{-}\bar{\nu}_{\tau})/$ ${\cal{B}} (\bar{B} \to D^{(*)}\ell_{\ell}^{-}\bar{\nu}_{\ell})$, where $\ell$ is either electron or muon. We measure ${\cal{R}}(D) = 0.440 \pm 0.058 \pm 0.042$ and ${\cal{R}}(D^*) = 0.332 \pm 0.024 \pm 0.018$. These ratios exceed the Standard Model predictions by $2.0\sigma$ and $2.7\sigma$, respectively. The results disagree with the Standard Model predictions at the level of $3.4\sigma$. The ratios are sensitive to new physics contributions in the form of a charged Higgs boson. However, the access cannot be explained by a charged Higgs boson in the type II two-Higgs-doublet model.
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