نتایج جستجو برای: during the 2004
تعداد نتایج: 16276118 فیلتر نتایج به سال:
We studied the effect of nearest pattern interaction on a global pattern formation in a two-dimensional space, where patterns are to grow initially from a noise in the presence of a periodic supply of energy. Although our approach is general, we found that this study is relevant in particular to the pattern formation on a periodically vibrated granular layer, as it gives a unified perspective o...
New species of lance lacewings, Spilosmylus spilopteryxsp. n. and Spilosmylus tephrodestigmasp. n., are described from the Philippines and compared with congeners. Both species are characterised by a distinctive wing pattern, which in the case of Spilosmylus spilopteryxsp. n. is relatively spectacular among lacewings. An identification key to the species of Spilosmylus Kolbe known from the Phil...
background: this study attempted to investigate traffic accident fatalities during 2004-2009 and the effect of fuel rationing on traffic accident fatalities . materials and methods: this was a cross-sectional study on available data of all traffic accident fatalities in fars province, iran, during 2004-2009. to identify and fit the best model, various instruments, including the autocorrelatio...
The ability of Gaussian noise to induce ordered states in dynamical systems is here presented in an overview of the main stochastic mechanisms able to generate spatial patterns. These mechanisms involve: (i) a deterministic local dynamics term, accounting for the local rate of variation of the field variable, (ii) a noise component (additive or multiplicative) accounting for the unavoidable env...
Localized ecological interactions can generate striking large-scale spatial patterns in ecosystems through spatial self-organization. Possible mechanisms include oscillating consumer-resource interactions, localized disturbance-recovery processes and scale-dependent feedback. Despite abundant theoretical literature, studies revealing spatial self-organization in real ecosystems are limited. Rec...
abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...
Wireless networks are commonly used by people. Market devices are equipped with the new security standard 802.11i. The standard announced in the middle of 2004 is commonly used to protect WLANs. Currently we can find the information that vulnerabilities were found in that standard. Then a question arises: Are WLANs compromised again? The article describes vulnerabilities which were discovered i...
Iolanthe Beddard, 1886a is shown to be a senior synonyn of Acanthaspidia Stebbing, 1893, the replacement name for the preoccupied Acanthoniscus Sars, 1879 (Isopoda: Asellota: Acanthaspidiidae). Ischnomesus kussakini nom. nov. is erected as a replacement name for Ischnomesus antarcticus (Kussakin, 1982), preoccupied in this combination (Isopoda: Asellota: Ischnomesidae).
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