Design guide for high pressure oxygen systems

A repository for critical and important detailed design data and information, hitherto unpublished, along with significant data on oxygen reactivity phenomena with metallic and nonmetallic materials in moderate to very high pressure environments is documented. This data and information provide a ready and easy to use reference for the guidance of designers of propulsion, power, and life support systems for use in space flight. The document is also applicable to designs for industrial and civilian uses of high pressure oxygen systems. The information presented herein are derived from data and design practices involving oxygen usage at pressures ranging from about 20 psia to 8000 psia equal with thermal conditions ranging from room temperatures up to 500 F

Right ventricular responses to CPAP therapy in obstructive sleep apnoea: CMR analysis of the MOSAIC randomised trial

Effects of continuous positive airway pressure (CPAP) on right ventricular (RV) function in patients with untreated mild-to-moderate obstructive sleep apnea (OSA) are unclear. In this exploratory analysis of cardiac magnetic resonance (CMR)-derived indices of RV function in patients with minimally symptomatic OSA from the MOSAIC randomized control trial we found no effect of CPAP on RV CMR parameters. In those with lower RV ejection fraction and higher RV end-diastolic volume (EDV) at baseline, CPAP treatment appeared to improve RV function with a significant reduction in both RV EDV and RV end-systolic volume although between-group effects were not observed. These data suggest potential merit in a larger randomized study of CPAP in patients with mild-to-moderate OSA and a greater breadth of RV dysfunction

The Ideal Woman as She Is Represented by the Best English Writers from Chaucer\u27s Time to the Present

A study of various English writers\u27 representations of the Ideal Woman

Factors influencing the behaviour of people who drive at work.

Work-related road accidents account for around 25-33% of all road fatalities in Britain and in the region of 250 serious injuries per week. Previous studies show that those who drive for work have a higher accident risk than the general driving population even when their greater exposure is factored out.Quantitative and qualitative data was collected from Strathclyde drivers who drive as part of their work. The data show that drivers who have points on their licence or have recently received a speeding ticket are more likely to have been involved in a road traffic accident and these accidents are more likely to have occurred during work time. This confirms the theory that cameras spot crash magnets and illustrates the importance of educating those who drive as part of their work, in particular, to slow down. This paper also examines why occupational drivers are vulnerable on the roads by giving an insight into their attitudes and motives surrounding the driving task.A greater understanding of the beliefs and behaviours of drivers who are at risk of being involved in a third of road traffic accidents should serve to inform more effective road safety policies. With the possible advent of a graduated penalty system, attitudes to the current points and fine system will be of interest in a group the security of whose livelihood is most likely to be impacted by such changes

Factors influencing the behaviour of people who drive at work.

Work-related road accidents account for around 25-33% of all road fatalities in Britain and in the region of 250 serious injuries per week. Previous studies show that those who drive for work have a higher accident risk than the general driving population even when their greater exposure is factored out.Quantitative and qualitative data was collected from Strathclyde drivers who drive as part of their work. The data show that drivers who have points on their licence or have recently received a speeding ticket are more likely to have been involved in a road traffic accident and these accidents are more likely to have occurred during work time. This confirms the theory that cameras spot crash magnets and illustrates the importance of educating those who drive as part of their work, in particular, to slow down. This paper also examines why occupational drivers are vulnerable on the roads by giving an insight into their attitudes and motives surrounding the driving task.A greater understanding of the beliefs and behaviours of drivers who are at risk of being involved in a third of road traffic accidents should serve to inform more effective road safety policies. With the possible advent of a graduated penalty system, attitudes to the current points and fine system will be of interest in a group the security of whose livelihood is most likely to be impacted by such changes

MB 700 Anthropology for Christian Mission

Textbook: Cultural Anthropology: An Applied Perspective, fifth edition by Gary Ferraro Readings: Anthropology and Christian Mission: A Reader, Darrell Whiteman (ed.)Customs and Cultures by Eugene Nidahttps://place.asburyseminary.edu/syllabi/2521/thumbnail.jp

High temperature GaAs X-ray detectors

Two GaAs p+-i-n+ mesa X-ray photodiodes were characterized for their electrical and photon counting X-ray spectroscopic performance over the temperature range of 100 °C to –20 °C. The devices had 10 μm thick i layers with different diameters: 200 μm (D1) and 400 μm (D2). The electrical characterization included dark current and capacitance measurements at internal electric field strengths of up to 50 kV/cm. The determined properties of the two devices were compared with previously reported results that were made with a view to informing the future development of photon counting X-ray spectrometers for harsh environments, e.g., X-ray fluorescence spectroscopy of planetary surfaces in high temperature environments. The best energy resolution obtained (Full Width at Half Maximum at 5.9 keV) decreased from 2.00 keV at 100 °C to 0.66 keV at –20 °C for the spectrometer with D1, and from 2.71 keV at 100 °C to 0.71 keV at –20 °C for the spectrometer with D2. Dielectric noise was found to be the dominant source of noise in the spectra, apart from at high temperatures and long shaping times, where the main source of photopeak broadening was found to be the white parallel noise

Al0.6Ga0.4As x-ray avalanche photodiodes for spectroscopy

No description supplie

Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at s√=8 TeV with ATLAS

Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of s√=8 TeV. The analysis is performed in the H → γγ decay channel using 20.3 fb−1 of data recorded by the ATLAS experiment at the CERN Large Hadron Collider. The signal is extracted using a fit to the diphoton invariant mass spectrum assuming that the width of the resonance is much smaller than the experimental resolution. The signal yields are corrected for the effects of detector inefficiency and resolution. The pp → H → γγ fiducial cross section is measured to be 43.2 ±9.4(stat.) − 2.9 + 3.2 (syst.) ±1.2(lumi)fb for a Higgs boson of mass 125.4GeV decaying to two isolated photons that have transverse momentum greater than 35% and 25% of the diphoton invariant mass and each with absolute pseudorapidity less than 2.37. Four additional fiducial cross sections and two cross-section limits are presented in phase space regions that test the theoretical modelling of different Higgs boson production mechanisms, or are sensitive to physics beyond the Standard Model. Differential cross sections are also presented, as a function of variables related to the diphoton kinematics and the jet activity produced in the Higgs boson events. The observed spectra are statistically limited but broadly in line with the theoretical expectations

Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.Comment: 24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal