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Results for “Reliability”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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On reliable identification of factors influencing wildlife-vehicle collisions along roads
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A suction blister model reliably assesses skin barrier restoration and immune response
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Structural reliability analysis of contact fatigue design of gears in wind turbine drivetrains
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Reliability evaluation method for pipes buried in fault areas based on the probabilistic fault displacement hazard analysis
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Reliable hydrogen production from methanol photolysis in aqueous solution by a harmony between In and Zn in bimetallic zinc indium sulfide
Highlights: • Band-gaps in Zn{sub x}In{sub y}S{sub z} particles were shorten. • Hydrogen production by methanol photolysis was the best on ZnInS{sub 2.5}. • Recombination between electrons and holes during methanol photolysis became long on ZnInS{sub 2.5}. - Abstract: This study focuses on hydrogen production by methanol photolysis using zinc indium sulfide (Zn{sub x}In{sub y}S{sub z}). The X-ray diffraction identified that the synthesized Zn{sub 2}InS{sub 2.5} and ZnInS{sub 2.5} particles have a hexagonal Zn{sub 3}In{sub 2}S{sub 6} structure, but when In of twice amount against Zn is coexisted, the particle exhibits a perfect hexagonal ZnIn{sub 2}S{sub 4} structure. The results in ultra-violet absorption and X-ray photoelectron spectroscopy analysis confirmed that the band-gaps of Zn{sub x}In{sub y}S{sub z} particles decrease depend on the coexistence of In. However, the photocurrent which related to the life time of excited electrons was no correlation with the Zn/In molar ratio, and it was the highest on ZnInS{sub 2.5} particle with a ratio of Zn:In = 1:1. Eventually, the hydrogen production by methanol photolysis in aqueous solution was the best on ZnInS{sub 2.5} particle. This result gives ultimately relevant that the recombination between electrons and holes during methanol photolysis could be suppressed on bimetallic ZnInS{sub 2.5} particle.
Reducing digital risks and improving reliability in nuclear power integrated energy systems
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Reliability of Monte Carlo simulations in modeling neutron yields from a shielded fission source
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A faster and more reliable data acquisition system for the full performance of the SciCRT
The SciBar Cosmic Ray Telescope (SciCRT) is a massive scintillator tracker to observe cosmic rays at a very high-altitude environment in Mexico. The fully active tracker is based on the Scintillator Bar (SciBar) detector developed as a near detector for the KEK-to-Kamioka long-baseline neutrino oscillation experiment (K2K) in Japan. Since the data acquisition (DAQ) system was developed for the accelerator experiment, we determined to develop a new robust DAQ system to optimize it to our cosmic-ray experiment needs at the top of Mt. Sierra Negra (4600 m). One of our special requirements is to achieve a 10 times faster readout rate. We started to develop a new fast readout back-end board (BEB) based on 100 Mbps SiTCP, a hardware network processor developed for DAQ systems for high energy physics experiments. Then we developed the new BEB which has a potential of 20 times faster than the current one in the case of observing neutrons. Lastly, we installed the new DAQ system including the new BEBs to a part of the SciCRT in July 2015. The system has been operating since then. In this article, we describe the development, the basic performance of the new BEB, the status after the installation in the SciCRT, and the future performance.
Functional components for a design strategy: Hot cell shielding in the high reliability safeguards methodology
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To bin or not to bin: Does binning in multiplicity reliably suppress unwanted volume fluctuations?
Here, in this study, we examine the effect of the so-called Centrality Bin Width Correction (CBWC) on the measurement of (net-)proton number cumulants in nucleus-nucleus collisions. We present an analytically tractable model, which includes correlations between multiplicity and proton number similar to those generated by the decay of baryon resonances. Within this model, we analyze the circumstances under which the CBWC method correctly removes the undesired effects of volume or impact parameter fluctuations. Additionally, we explore situations where the method fails and produces misleading results.
Quantitative characterization of the reliability of simplex buses and stars to compare their benefits in fieldbuses
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Time-variant reliability assessment through equivalent stochastic process transformation
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Capturing cognitive causal paths in human reliability analysis with Bayesian network models
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