نتایج جستجو برای: oes
تعداد نتایج: 2063 فیلتر نتایج به سال:
The paper presents possibilities and difficulties in nondestructive analysis of small multielement single crystals performed by means of X-ray spectrometry techniques: micro-X-ray fluorescence spectrometry (μ-XRF), energy-dispersive electron probe microanalysis (ED-EPMA), and X-ray photoelectron spectroscopy (XPS). The capability of the X-ray spectroscopy techniques in elemental analysis is dem...
In the present paper, the elemental composition of wood ashes obtained by the combustion of wood in a fireplace was determined with the use of ICP-MS and ICP-OES techniques. Wood ashes may find a potential application as deacidifying agents and soil conditioners, since they contain calcium (in the form of CaCO(3) and CaO), potassium (in the form of K(2)SO(4) and K(2)CO(3)) and significant level...
In Arabidopsis thaliana, acyl-CoA-binding proteins (ACBPs) are encoded by a family of six genes (ACBP1 to ACBP6), and are essential for diverse cellular activities. Recent investigations suggest that the membrane-anchored ACBPs are involved in oxygen sensing by sequestration of group VII ethylene-responsive factors under normoxia. Here, we demonstrate the involvement of Arabidopsis ACBP3 in hyp...
Deposition rates over 10 Å/s can be obtained for device-grade microcrystalline silicon with the VHF-GD (Very High Frequency Glow Discharge) method, as applied to hydrogendiluted silane plasmas. The morphological phase transition from amorphous to microcrystalline silicon can be controlled by varying e.g. the applied VHF-power or the dilution level. The glow of the plasma associated with this mo...
The radiation from the arc plasma ignited between flat ends of copper electrodes in atmospheric pressure air at a direct current 3.5 A is analyzed to determine temperature and composition. Side-on spectra range (430 – 650) nm are recorded using CMOS camera connected spectrograph. spectral emission coefficient evaluated radiance, which provides radiator number density. excitation obtained by app...
The Occupational Employment Statistics (OES) Survey is a yearly mail survey designed to produce estimates of employment and wages for more than 700 occupations in the U.S. The OES sample is stratified by geographic area, economic activity, and employment size class; with geographic area defined by State, Metropolitan Statistical Area (MSA) and balance of State area, and economic activity define...
A simple, fast, low-cost and sensitive microfluidic paper-based analytical device (u-PADs) integrated with the co-precipitation enrichment procedure was developed to analyse Ni(II) in tap mineral water samples. The impacting factors, including pH, centrifugation (5 min at 4000 rpm), amounts of reagents were optimized. limit detection 0.009 mg L-1 linear range 0.03-2.00 achieved good intra- inte...
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