نتایج جستجو برای: trap efficiency
تعداد نتایج: 414055 فیلتر نتایج به سال:
Comprehensive field observations characterizing the biological carbon pump (BCP) provide foundation needed to constrain mechanistic models of downward particulate organic (POC) flux in ocean. Sediment traps were deployed three times during EXport Processes Ocean from RemoTe Sensing campaign at Station Papa August–September 2018. We propose a new method correct sediment trap sample contamination...
Evaporative cooling was performed to cool fermionic 173Yb atoms in a crossed optical dipole trap. The large elastic collision rate leads to efficient evaporation and we have successfully cooled the atoms to 0.37+/-0.06 of the Fermi temperature, that is to say, to a quantum degenerate regime. In this regime, a plunge of evaporation efficiency was observed as a result of Fermi degeneracy.
We propose a scheme for simultaneously trapping and detecting single atoms near the surface of a substrate using whispering gallery modes of a microdisk resonator. For efficient atom-mode coupling the atom should be placed within approximately 150 nm from the disk. We show that a combination of red and blue detuned modes can form an optical trap at such distances while the back-action of the at...
Recent years have witnessed the increasing popularity of housing allowance as a major housing policy in countries across the world. However, the research on behavior impacts of housing benefits is still in paucity. In this paper, we present a tentative attempt to investigate an issue that not explored before: does higher level of welfare reliance on housing allowance promote or depress recipien...
A linear octopole trap interface for an ion mobility time-of-flight mass spectrometer has been developed for focusing and accumulating continuous beams of ions produced by electrospray ionization. The interface improves experimental efficiencies by factors of approximately 50-200 compared with an analogous configuration that utilizes a three-dimensional Paul geometry trap (Hoaglund-Hyzer, C. S....
abstract during growing seasons of years 2006 & 2007, a faunistic survey on syrphidae family(diptera) in agroecosystems of neyshabor region, khorasan-e-razavi province was carried out. in this study, 3 collection methods: yellow water trap, malaise trap and sweeping net were applied. the results showed a large difference between different collection methods. specimens of 14 species collected by...
fruit fly, ceratitis capitata (diptera:tephritidae), worldwide. to determine the best combination of trap and attractant for mass trapping of mediterranean fruit fly, a field experiment was conducted in a randomized complete block design (rcbd) with 6 treatments in 3 replications in a pomegranate orchard in shiraz (iran) in 2009. treatments included: 1-jackson trap baited with trimedlure, 2- mc...
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