منابع مشابه
stability and attraction domains of traffic equilibria in day-to-day dynamical system formulation
در این پژوهش مسئله واگذاری ترافیک را از دید سیستم های دینامیکی فرمول بندی می کنیم.فرض کرده ایم که همه فاکتورهای وابسته در طول زمان ثابت باشند و تعادل کاربر را از طریق فرایند منظم روزبه روز پیگیری کنیم.دینامیک ترافیک توسط یک نگاشت بازگشتی نشان داده می شود که تکامل سیستم در طول زمان را نشان می دهد.پایداری تعادل و دامنه جذب را توسط مطالعه ویژگی های توپولوژیکی تکامل سیستم تجزیه و تحلیل می کنیم.پاید...
Efficient Superfluorescent Light Sources with Broad Bandwidth
We demonstrate various efficient broad-band light sources at ~1μm wavelength with a 3dB bandwidth of up to 65nm at 108mW output power, based on rare-eartb doped silica fibers and a simple adjustable spectral filter.
متن کاملLight as a Broad-Spectrum Antimicrobial
Antimicrobial resistance is a significant and growing concern. To continue to treat even simple infections, there is a pressing need for new alternative and complementary approaches to antimicrobial therapy. One possible addition to the current range of treatments is the use of narrow-wavelength light as an antimicrobial, which has been shown to eliminate a range of common pathogens. Much progr...
متن کاملSoaring and Gliding Flight of Migrating Broad-winged Hawks: Behavior in the Nearctic and Neotropics Compared
—We compared migrating behavior of Broad-winged Hawks (Buteo platypterus) at two sites along their migration corridor: Hawk Mountain Sanctuary in eastern Pennsylvania and the Kéköldi Indigenous Reserve in Limón, Costa Rica. We counted the number of times focal birds intermittently flapped their wings and recorded the general flight type (straight-line soaring and gliding on flexed wings versus ...
متن کاملNight-time neuronal activation of Cluster N in a day- and night-migrating songbird
Magnetic compass orientation in a night-migratory songbird requires that Cluster N, a cluster of forebrain regions, is functional. Cluster N, which receives input from the eyes via the thalamofugal pathway, shows high neuronal activity in night-migrants performing magnetic compass-guided behaviour at night, whereas no activation is observed during the day, and covering up the birds' eyes strong...
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ژورنال
عنوان ژورنال: Science
سال: 1894
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-23.577.109