نتایج جستجو برای: ceramic 2 sno
تعداد نتایج: 2545829 فیلتر نتایج به سال:
Tin oxide (SnO2)nanoparticles were synthesized by co-precipitation method and the synthesized nanoparticles were annealed at different temperatures for characterization. The powders were investigated with X-ray diffraction, scanning electron microscopy and optical spectroscopy. The structural characterization was carried out by X-ray diffraction which confirms the crystalline nature ...
Our previous results run counter to the hypothesis that S-nitrosohemoglobin (SNO-Hb) serves as an in vivo reservoir for NO from which NO release is allosterically linked to oxygen release. We show here that SNO-Hb undergoes reductive decomposition in erythrocytes, whereas it is stable in purified solutions and in erythrocyte lysates treated with an oxidant such as ferricyanide. Using an extensi...
Given the increasing number of proteins reported to be regulated by S-nitrosylation (SNO), it is considered to act, in a manner analogous to phosphorylation, as a pleiotropic regulator that elicits dual effects to regulate diverse pathophysiological processes by altering protein function, stability, and conformation change in various cancers and human disorders. Due to its importance in regulat...
SnO₂ and F doped SnO₂ (FTO) nanoparticles (NPs) have been synthesized by the hydrothermal method with subsequent annealing at 500 °C. The microstructure and photoluminescence (PL) property of SnO₂ and FTO NPs have been investigated, and an assumption model about the luminescence process of FTO NPs has been proposed. All of the SnO₂ and FTO NPs possess polycrystalline tetragonal rutile structure...
Photocurrent density in excess of 10 mA cm ?2 reported on 2.0 eV CuInGaS 2 solar cells integrated SnO :F substrates, yet new wide bandgap n-type buffers required to achieve higher photoconversion efficiency.
We have studied the optical properties and carrier dynamics in SnO(2) nanowires (NWs) with an average radius of 50 nm that were grown via the vapor-liquid solid method. Transient differential absorption measurements have been employed to investigate the ultrafast relaxation dynamics of photogenerated carriers in the SnO(2) NWs. Steady state transmission measurements revealed that the band gap o...
Systemic hypoxia results in oxidative stress due to a change in the reactive oxygen species (ROS)-nitric oxide (NO) balance. These experiments explored two mechanisms for the altered ROS-NO balance: 1) decreased NO synthesis by NO synthase due to limited O(2) substrate availability and 2) increased superoxide generation. ROS levels and leukocyte adherence in mesenteric venules of rats during hy...
Transparent conducting oxides (TCO’s) have widespread uses as electrodes in solar cells and liquid crystal displays and as heat-reflecting window coatings. The commercial TCO of choice is ITO (tin-doped indium oxide). ITO has a typical conductivity of 1!5]103 S/cm and a transparency 85—90% in thin films (1). In addition to ITO, which has been reviewed (2), a number of promising TCO’s consisting...
The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active (nu_x) 8B solar neutrino flux. This technique is independent of previous methods employed by SNO. The total flux is found to be 5.54_-0.31;+0.33(stat)-0.34+0.36(syst)x10(6) cm(-2) s(-1), in agreement with p...
We perform a model-independent analysis of solar neutrino flux rates including the recent charged-current measurement at the Sudbury Neutrino Observatory (SNO). We derive a universal sum rule involving SNO and SuperKamiokande rates, and show that the SNO neutral-current measurement cannot fix the fraction of solar nu(e) oscillating to sterile neutrinos. The large uncertainty in the standard sol...
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