منابع مشابه
Stable carbon isotope composition of atmospheric methyl bromide
[1] Methyl bromide (CH3Br) constitutes the largest source of bromine atoms to the stratosphere and plays an important role in stratospheric ozone depletion. However, the CH3Br atmospheric budget remains uncertain. We report the first measurements of stable carbon isotope ratios for atmospheric CH3Br and explore the constraints they provide for the atmospheric budget. The measured dC of CH3Br ra...
متن کاملCarbon isotope fractionation of methyl bromide during agricultural soil fumigations
The isotopic composition of methyl bromide (CH3Br) has been suggested to be a potentially useful tracer for constraining the global CH3Br budget. In order to determine the carbon isotopic composition of CH3Br emitted from the most significant anthropogenic application (pre-plant fumigation) we directly measured the δ13C of CH3Br released during commercial fumigation. We also measured the isotop...
متن کاملinvestigation of the electronic properties of carbon and iii-v nanotubes
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
15 صفحه اولRocuronium Bromide Versus Vecuronium Bromide
BACKGROUND: Rocuronium Bromide is a newer, low potency nondepolarising neuromuscular blocking agent. It is proven to be five to seven times less potent than vecuronium.The aim of the present study was to evaluate the effectiveness of 2ED95 (2 times effective dose 95) dose (0.6mg/kg) of rocuronium with regard to onset time, the intubating conditions and the duration of action and to compare it w...
متن کاملElectrochemical Analysis of Tryptophan using a Nanostructuring Electrode with Multi-walled Carbon Nanotubes and Cetyltrimethylammonium bromide Nanocomposite
Multi-walled carbon nanotubes (MWCNTs) were immobilized on the surface of a glassy carbon electrode (GCE) in the presence of cetyltrimethylammonium bromide (CTAB) to form a MWCNTs-CTAB nanocomposite-modified electrode. The electrocatalytic response of the modified electrode towards tryptophan (Trp) was investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The surface...
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ژورنال
عنوان ژورنال: The Philosophical Magazine
سال: 1829
ISSN: 1941-5850,1941-5869
DOI: 10.1080/14786442908675152