Single-index models are becoming increasingly popular in many scientific applications as they offer the advantages of flexibility regression modeling well interpretable covariate effects. In context survival analysis, single-index hazards natural extensions Cox proportional models. this paper, we propose a novel estimation procedure for hazard under monotone constraint index. We apply profile l...

The concept of connectivity and its index have been widely discussed applied to environmental studies such as ecology, hydrology, geomorphology hydrosedimentology. Supposing that this is very useful also in disaster risk management, we define the hazard associated debris flows degree between flow occurrence (trajectory) point interest (location house, person, so on). Based on definition, Hazard...

Collision risk assessment is crucial for autonomous ships to identify risks and make decisions collision avoidance. In this paper, a field theory-based navel algorithm proposed define describe the of ship collision. Based on theory asymmetric Gaussian function, constructed, potential used characterize navigational hazard index. The effectiveness superiority are verified through study cases. res...

Particulate fires and explosions cause substantial loss of life and property. With the goal of understanding, preventing, or at least mitigating particulate fire and explosion hazards, we review basics. We distinguish between ‘hazard’ and ‘risk’ and discuss the fire and explosion hazards of particulates, the many factors determining such hazards, hazard indexes, and ways to reduce fire and expl...

The objective of this study was to determine the distribution of selected metal concentrations (Cd, Pb, Cr and Fe) in the muscles of five fish species (Sander lucioperca, Liza auratus, Alosa caspia, Cyprinus carpio and Liza saliens) from Gorgan Bay the south-eastern Caspian Sea, in order to assess health risk to the human via fish consumption by graphite furnace atomic absorption spectrophotome...