12.086 / 12.586 Modeling Environmental Complexity Fall 2008
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The MASON HouseholdsWorld Model of Pastoral Nomad Societies
Computational modeling of pastoralist societies that range as nomads over diverse environmental zones poses interesting challenges beyond those posed by sedentary societies. We present HouseholdsWorld, a new agentbased model of agro-pastoralists in a natural habitat that includes deserts, grasslands, and mountains. This is the paper-of-record for the HouseholdsWorld model as part of a broader i...
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Nitrate losses from subsurface tile drained row cropland in the Upper Midwest U.S. contribute to hypoxia in the Gulf of Mexico. Strategies are needed to reduce nitrate losses to the Mississippi River. This paper evaluates the effect of fertilizer rate and timing on nitrate losses in two (East and West) commercial row crop fields located in south-central Minnesota. The Agricultural Drainage and ...
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The purpose of this paper is to indicate the applicability of decision analyses to environmental problems, which we define to be those problems where the alternatives might alter the natural environment. Thus, we are concerned with possible changes in our air, water, and lard caused by, for example, auto emissions, noise, nuclear reactors, extinction of animal or floral species, weather modific...
متن کاملModeling and managing uncertainties in rock-fall hazards
The assessment of rock-fall hazards is subject to significant uncertainty, which is not fully considered in general practice and research. This paper reviews and classifies the various sources of the uncertainty. Taking a generic framework for risk assessment as source, a probabilistic model is presented that consistently combines the different types of uncertainties, in order to obtain a unifi...
متن کاملComparison of low-complexity fall detection algorithms for body attached accelerometers.
The elderly population is growing rapidly. Fall related injuries are a central problem for this population. Elderly people desire to live at home, and thus, new technologies, such as automated fall detectors, are needed to support their independence and security. The aim of this study was to evaluate different low-complexity fall detection algorithms, using triaxial accelerometers attached at t...
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تاریخ انتشار 2008