نتایج جستجو برای: ion content
تعداد نتایج: 613059 فیلتر نتایج به سال:
Laser desorption laser-induced fluorescence ~LD-LIF! detection of GeCl was used to determine in situ the surface coverage of chlorine during the etching of germanium by Cl2 in an inductively coupled plasma ~ICP! reactor. The ICP operated in the dim mode for radio frequency ~rf! power &350 W and in the bright mode for higher powers. The etch rate was 3.5 mm/min with 540 W rf power and 240 V subs...
In this paper we report on the first edit ion of the HEp-2 Cells Classificat ion contest , held at the 2012 edit ion of the Internat ional Conference on Pattern Recognit ion, and focused on Indirect Immunofluorescence (IIF) image analysis. The IIF methodology is used to detect autoimmune diseases by searching for ant ibodies in the pat ient serum but, unfortunately, it is st ill a subject ive m...
Total phenolic contents (TPC) of five different extracts (petroleum ether, dichloromethane, ethyl acetate, ethanol and ethanol-water) of Artemisia biennis Willd were measured in this work. The antioxidant activity was investigated by three different methods: β-carotene bleaching (BCB) test, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method and ferrous ion chelating (FIC) assay. Amo...
Porous silicon (PS) samples are obtained by electrochemical anodization of Si wafers in HF+DMF solution. The hydrogen complex components are formed on the inner surface walls of porous silicon. In this work the depth profile of porous silicon is estimated by measurement of hydrogen content in the depth of the sample. Since the well-known ion beam analysis simulation programs are inappropriate f...
The investigation on the modification of NaY zeolite on LaHY and AEHY (AE refers Ca and Sr and the molar ratio of Ca and Sr is 1:1) zeolites was proformed by XRD, N2-physisorption (BET), XRF, XPS, NH3-TPD, Py-IR, hydrothermal stability, and catalytic cracking test. These results indicate that HY zeolite with ultra low content Na can be obtained from NaY zeolite through four exchange four calcin...
The goal of this study was to determine whether calcium ion, (one of the electrolytes released after plant cell attack), may have a direct eect on fungal growth and chemistry of the fungal cell wall. B. cinerea was grown on Richard's solution containing dierent amounts of CaCl2, and the cell walls were extracted from the mycelium after 7 days of growth. Mineral, neutral and aminosugar, protei...
The effect of nitrogen addition on the properties of tetrahedral amorphous carbon ~ta-C! has been studied. The ta-C is deposited by a filtered cathodic vacuum arc. The effect of introducing nitrogen on its plasma was measured by a retarding field analyzer and optical emission spectroscopy. The ta-C:N films were studied as a function of nitrogen content, ion energy, and deposition temperature. T...
A method is described for continuous, nondestructive analysis of xylem-borne mineral nutrients in intact transpiring plants. The method uses the xylem-feeding insect the meadow spittlebug (Philaenus spumarius L. [Homoptera: Cercopidae]). This insect will feed from a wide range of plant species and organs. Insect excreta can be collected at all times of the day and night, and its mineral ion con...
The effects of salinity on growth, water relations, glycinebetaine content, and ion accumulation in the perennial halophyte Atriplex griffithii var. stocksii were determined. The following questions were addressed: (1) What effect does salinity have on growth responses at different ages? (2) Is A. griffithii an ion accumulator? (3) Does A. griffithii accumulate glycinebetaine in response to sal...
BACKGROUND/AIM Glass ionomer cements (GIC) belong to the group of polycarboxyl cements, and one of the principal characteristics of these materials is their anticariogenic potential of fluorine release into saliva and enamel-dentin substance. The aim of this study was to examine the content of released fluorine from GIC restorations (Fuji IX, GC, Japan) of young permanent teeth in the medium of...
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