In the process of butadiene rubber production, internal leakage occurs in heat exchangers due to excessive pressure difference. It leads considerable flow organic matters into circulating water system. Since these are volatile and prone explode cold tower, is potentially dangerous for enterprise. To prevent this phenomenon, a novel intelligent early warning risk assessment method (DYN-EW-QRA) p...

An (n, 1, p)-quantum random access (QRA) coding, introduced by Ambainis et al (1999 ACM Symp. Theory of Computing p 376), is the following communication system: the sender which has n-bit information encodes his/her information into one qubit, which is sent to the receiver. The receiver can recover any one bit of the original n bits correctly with probability at least p, through a certain decod...

Many scientists, activists, regulators, and politicians have expressed urgent concern that using antibiotics in food animals selects for resistant strains of bacteria that harm human health and bring nearer a "postantibiotic era" of multidrug resistant "super-bugs." Proposed political solutions, such as the Preservation of Antibiotics for Medical Treatment Act (PAMTA), would ban entire classes ...

Abstract Quantile Regression Averaging (QRA) has sparked interest in the electricity price forecasting community after its unprecedented success Global Energy Forecasting Competition 2014, where top two winning teams track used variants of QRA. However, recent studies have reported method's vulnerability to low quality predictors when set regressors is larger than just a few. To address this is...

Offshore quantitative risk assessments (QRA) have historically been complex and costly. For large offshore design projects, the level of detail required for a QRA is often not available until well into the detailed design phase of the project. In these cases, the QRA may be unable to provide timely hazard understanding. As a result, the risk reduction measures identified often come too late to ...

Quantitative risk analysis (QRA) is a systematic approach for evaluating likelihood, consequences, and risk of adverse events. QRA based on event (ETA) and fault tree analyses (FTA) employs two basic assumptions. The first assumption is related to likelihood values of input events, and the second assumption is regarding interdependence among the events (for ETA) or basic events (for FTA). Tradi...

Landslides are a worldwide natural hazard that cause more damage and casualties than other hazards. Therefore, social economic losses can be reduced through landslide quantitative risk assessment (QRA). In the last two decades, many attempts of analysis on various scales have been performed; nevertheless, major difficulty QRA lies in how precise reliable should to useful. For this reason, paper...

Based on chemical, cellular, and molecular understanding of dermal sensitization, an exposure-based quantitative risk assessment (QRA) can be conducted to determine safe use levels of fragrance ingredients in different consumer product types. The key steps are: (1) determination of benchmarks (no expected sensitization induction level (NESIL)); (2) application of sensitization assessment factor...

Quantitative Risk Assessment (QRA) models have already been developed and used to assess various risks of road tunnels, including the societal risk and expected number of fatalities (ENF). Fire in a road tunnel is considered as the most severe disaster in that road tunnel is an enclosed space. The risk assessment for fire in road tunnels involves a number of parameters. Some of these parameters...

Persistent episodes of extreme weather in the Northern Hemisphere summer have been shown to be associated with the presence of high-amplitude quasi-stationary atmospheric Rossby waves within a particular wavelength range (zonal wavenumber 6-8). The underlying mechanistic relationship involves the phenomenon of quasi-resonant amplification (QRA) of synoptic-scale waves with that wavenumber range...