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this research was carried out in order to quantify throughfall (tf) and interception loss (i) and to compare the chemical composition of tf, i.e. lead (pb) and cadmium (cd) as well as electrical conductivity (ec) and ph beneath pinus eldarica and cupressus arizonica plantations and the open field rainfall. the research was accomplished in the chitgar forest park, a semi-arid polluted urban area...

Many studies have investigated how the visual system influences motor control (Jackson and Husain, 1997). The reverse relationship of how the motor system influences visual perception has been less studied. For example, it has been suggested that when perceiving the actions of others, the observer’s motor system provides an internal model that is used for ongoing perceptual predictions (Wilson ...

Interacting with a moving object poses a computational problem for an animal's nervous system. This problem has been elegantly solved by the dragonfly, a formidable visual predator on flying insects. The dragonfly computes an interception flight trajectory and steers to maintain it during its prey-pursuit flight. This review summarizes current knowledge about pursuit behavior and neurons though...

Vulnerability in the interception of radar transmission by anti-radiation missiles or the like, can be avoided by using Low Probability of Intercept (LPI) techniques like Barker codes, Frank codes, polyphase codes, Costas code, etc. In this project, we simulate different kinds of complex waveforms that are obtained by superimposing LPI signal onto the radar signal. Analysis of the power spectra...

This paper develops a set of graphoid-like axioms for causal relevance, that is, statements of the form: \Changing X will not aaect Y if we hold Z constant". Both a probabilistic and deterministic deenition of causal irrelevance are proposed. The probabilistic definition allows for only two axioms, unless stability is assumed. Under the stability assumption, probabilis-tic causal irrelevance is...

Four methods of estimating daily light interception (fisheye photography with image analysis, multiple-light sensors, ceptometer, and point grid) were compared using various apple (Malus domestica Borkh.) tree forms: slender spindle, Yand T-trellises, and vertical palmette. Interactions of tree form, time of day, and atmospheric conditions with light interception estimates were examined. All me...

The magnitude, seasonality, and duration of peak discharge responses to forest removal and regrowth and roads in 10 pairs of experimental basins in the western Cascade Range of Oregon are consistent with fundamental water balance and routing concepts in hydrology. Hypothesized effects of forestry treatments on evapotranspiration, cloud water interception, snowpack dynamics, and subsurface flow ...