18 research outputs found

    Measurements of π±\pi^\pm, K±^\pm, p and pˉ\bar{\textrm{p}} spectra in proton-proton interactions at 20, 31, 40, 80 and 158 GeV/c with the NA61/SHINE spectrometer at the CERN SPS

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    Measurements of inclusive spectra and mean multiplicities of π±\pi^\pm, K±^\pm, p and pˉ\bar{\textrm{p}} produced in inelastic p+p interactions at incident projectile momenta of 20, 31, 40, 80 and 158 GeV/c (s=\sqrt{s} = 6.3, 7.7, 8.8, 12.3 and 17.3 GeV, respectively) were performed at the CERN Super Proton Synchrotron using the large acceptance NA61/SHINE hadron spectrometer. Spectra are presented as function of rapidity and transverse momentum and are compared to predictions of current models. The measurements serve as the baseline in the NA61/SHINE study of the properties of the onset of deconfinement and search for the critical point of strongly interacting matter

    Measurements of ππ±^{±} , KK±^{±}, pp and pˉ\bar{p} spectra in proton-proton interactions at 20, 31, 40, 80 and 158 GeV/cc with the NA61/SHINE spectrometer at the CERN SPS

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    Measurements of inclusive spectra and mean multiplicities of π ± π± , K ± ± , p and p ¯ p¯ produced in inelastic p + p interactions at incident projectile momenta of 20, 31, 40, 80 and 158 GeV /c GeV /c (s √ = s= 6.3, 7.7, 8.8, 12.3 and 17.3 GeV GeV , respectively) were performed at the CERN Super Proton Synchrotron using the large acceptance NA61/SHINE hadron spectrometer. Spectra are presented as function of rapidity and transverse momentum and are compared to predictions of current models. The measurements serve as the baseline in the NA61/SHINE study of the properties of the onset of deconfinement and search for the critical point of strongly interacting matter

    Two-particle correlations in azimuthal angle and pseudorapidity in inelastic p + p interactions at the CERN Super Proton Synchrotron

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    Results on two-particle ΔηΔϕ correlations in inelastic p + p interactions at 20, 31, 40, 80, and 158 GeV/c are presented. The measurements were performed using the large acceptance NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The data show structures which can be attributed mainly to effects of resonance decays, momentum conservation, and quantum statistics. The results are compared with the Epos and UrQMD models.ISSN:1434-6044ISSN:1434-605

    Two-particle correlations in azimuthal angle and pseudorapidity in inelastic p + p interactions at the CERN Super Proton Synchrotron

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    Estimating shipping emissions – A case study for cargo Port of Zadar, Croatia

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    Reducing air pollutant emissions and energy consumption, as a necessary step to make ports more sustainable, is one of the crucial tasks and challenges of port management. Some of the port strategies to meet the term “green port” usually include reducing fuel consumption from vessels and vehicles in ports. This paper estimates the emission inventory of maritime traffic for the cargo Port of Zadar. For this research, emissions from cargo ships are estimated in the period from January 01. 2018 until October 01. 2019. The “bottom-up” methodology has been applied for estimating emissions, which includes detailed data on the ship’s characteristics (engine power, the load factor, fuel type, the emission factor) and time spent cruising and hotelling. The emissions from cargo ships have been estimated for three ship’s activities: cruising in the reduced speed zone, hotelling (time spent at berth), and maneuvering. The emission results (tons/year) refer to the pollutants such as nitrogen oxides (NOx), sulphur oxides (SOx), particulate matter (PM), volatile organic compounds (VOC), and carbon dioxide (CO2) which represents greenhouse gases. Estimating emission inventory is the first step for planning effective port air quality control. Some recommendations for reducing emissions in port areas are emphasized in this paper

    Impact of late and early fuel injection on main engine efficiency and exhaust gas emissions

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    Exhaust gas emissions from ships are an aspect of the global maritime industry which has been given great importance in recent years. Increasing the efficiency of maritime transport regarding fuel consumption and exhaust gas emissions is an ongoing effort which requires a detailed analysis of all ship systems that have an effect on the aforementioned issue. One aspect that can be analyzed in this regard are the various machinery faults which influence the ships exploitation efficiency. This paper will focus on the analysis of the two stroke slow speed diesel main engine with early and late fuel injection faults. This analysis is based on a set of data acquired from a simulation model of a LCC tanker vessel including fuel consumption and emission pollutants such as carbon monoxide (CO), sulphur oxides (SOX) and carbon dioxide (CO2) as a greenhouse gas with early and late fuel injection fault introduced to different number of main engine cylinders. This methodology of research has the advantage of analyzing various scenarios which are not as easily reproduced on actual vessels

    Alterations of pancreatic acinar cells and biochemical changes in serum due to experimentally induced acute pancreatitis in dogs

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    Experimentally induced acute pancreatitis was initiated in 16 male German shepherd dogs by application of sodium taurocholate into the pancreatic duct system. Potential effects of oxygen free radicals were evaluated by premedication with an antioxidant: superoxide dismutase (SOD). Therefore in 8 animals sodium taurocholate solution was applied simultaneously with intra-arterial inoculation of superoxide dismutase, while another 8 dogs were treated only with sodium taurocholate. The effects of sodium taurocholate solution and SOD were evaluated biochemically bi the amylase activity, the concentrations of ceruloplasmin (Cp) and PAGE (polyacrylamide gel electrophoresis) of serum proteins, together with the pathohistological observations. The results confirmed that bile salt injected into the pancreatic duct caused widespread progressive necrotic hemorrahagic lesions in the acinar, ductal and vascular cells. The biochemical injury response in all examined dogs was hyperamylasemia, increased amount of macroglobulin and decreased albumin and globulin fractions. There was a statistically significant increase in amylase activity and statistically significant differences in Cp concentrations between the examined groups. Pathohistological alterations were similar in both experimental groups, except in their rate, which was rather sluggish in the group treated with SOD. We therefore assumed that the oxygen free radicals as well as the detergent effect of the applied bile salt mediated the initial lesions in the induction of acute pancreatitis
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