نتایج جستجو برای: fire fighting
تعداد نتایج: 50712 فیلتر نتایج به سال:
For the last century, fire management has focused on techniques to both protect human communities from catastrophic wildfire and to maintain fire-dependent ecological systems. However, despite a large and increasing allocation of resources and personnel to these goals, we are losing ground. It is clear that current fire management techniques are no match for the challenges requested of fire man...
The firefighter problem models the situation where an infection, a computer virus, an idea or fire etc. is spreading through a network and the goal is to save as many as possible nodes of the network through targeted vaccinations. The number of nodes that can be vaccinated at a single time-step is typically one, or more generally O(1). In a non-standard model, the so called spreading model, the...
Some studies suggest that fire fighters are at a higher risk of developing coronary heart disease than are males in the general population. We followed 1646 men for 10 years to determine the incidence of coronary heart disease. Subjects were participants of the Normative Aging Study, a longitudinal study of aging. Comparison of fire fighters (n = 171) and non-fire fighters (n = 1475) showed no ...
First, we will briefly introduce oriented percolation with our focus on a special orientation on the square grid. Then we will discuss critical probabilities of bond or site percolation on this particular orientation. Finally, we will introduce the Fire-fighting Problem and prove a theorem regarding an upper bound for these critical probabilities in the case that fractional fire-fighters were a...
• This solution was developed for an Unmanned Aerial Vehicle (UAV) System of the Department of Computer Architecture, Escola Politècnica Superior de Castelldefels, Universitat Politècnica de Catalunya. • The aim is to identify fire embers (that is, hot spots) in the images captured by an infrared video camera on the UAV in real time. The location and characteristics of the hot spots are then tr...
Introduction: using fossil fuels, some hazards such as explosion and fire are probable. This study was aimed to consequence modeling of fire on Methane storage tanks in a gas refinery using analyzing the risk, and modeling and evaluating the related consequences. Method: Hazard analysis by PHA was used to choosing the worst-case scenario. Then, causes of the scenario were determined by FTA. ...
It’s a catchy term, but let us beware of mistaking a slogan for an argument! Dissatisfied with several features of [2, p. 224–225], I attempt here belatedly to restore the original train of thought. Fighting fire with fire, I coin a new term of my own, calling the expression (1) the “total norm” of ξ. Though chosen in reference to the summation involved, the name is happily consistent with the ...
Our limited understanding of the short and long-term effects of fire on fish contributes to considerable uncertainty in assessments of the risks and benefits of fire management alternatives. A primary concern among the many potential effects of fire is the effects of fire and fire management on persistence of native fish populations. Limited evidence suggests vulnerability of fish to fire is co...
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