نتایج جستجو برای: directional effect
تعداد نتایج: 1672925 فیلتر نتایج به سال:
Abstract Charge structure, which can instantly release much energy, is a significant research point in explosive protection and warhead. A nonaxisymmetric directional-focusing warhead based on quadrangular charge structure was designed, the distribution of fragments from involved studied. Numerical calculation carried out ABAQUS finite element software. The witness targets were obtained an equa...
There are three main elements deciding about the effect of mutations on the protein coding sequences—the type of the substitution of nucleotide, the selection for the function of the gene product and the nature of the genetic code itself. Selection used to be considered as the only directional process among the evolutionary mechanisms. In fact the mutational pressure is also “directional” which...
Both stress during development and response to directional selection were proposed to lead to reduced developmental stability of an organism, commonly measured as fluctuating asymmetry. Here, we investigated the direct physiological (plastic) effect of larval malnutrition and the effect of evolutionary adaptation to this form of stress on developmental stability, measured as fluctuating asymmet...
The response of motion-sensitive neurons to stimuli presented within their receptive field is often affected by stimulation in the surrounding region. These effects have perceptually relevant consequences that can be measured using behavioral techniques. We used psychophysical reverse correlation to characterize directional selectivity in human observers while they processed a local motion stim...
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