Impurity physics is a traditional topic in condensed matter that nowadays being explored the field of ultracold gases. Among different classes impurities, we focus on charged impurities an bath. When single ion brought contact with gas, it subjected to reactive processes can be understood from cold chemistry perspective. In this work, present outlook approaches for dynamics bath atoms or molecu...

In this review, we emphasize three aspects of the regrowth of ion-implanted amorphous Si layers: (l) orientation dependence of the regrowth kinetics, (2) impurity effects on the regrowth kinetics, and (3) impurity distribution due to regrowth. To account for the orientation dependence there are at least three proposed models: (1) geometric model, (2) stress relaxant model, and (3) surface recon...

Gas delivery from a liquid source, common in semiconductor manufacturing, raises contamination control concerns not only due to impurity levels in the source. In addition, the lower vapor pressure of impurity species compared to that of the host (source) species causes impurity concentrations in delivered gas to increase as the source is used up. A physics-based dynamic simulator to describe th...

The performance of plasma facing components (PFC) is of great important for the realization of prototype nuclear fusion. Tungsten has been considered as the leading high-Z PFC material for these reactors and tokamaks due to its superior thermophysical properties, high melting point, low sputtering yield, and low tritium inventory. However, its surface deteriorates significantly under helium ion...

The transport of intrinsic impurities is investigated during standard and improved confinement regimes of the Madison Symmetric Torus (MST) reversed-field pinch. The impurity diffusion coefficient (D) and pinch velocity (v) are obtained through comparing the time evolution of experimental impurity density profiles with the results of a one-dimensional impurity transport code. Experimental hollo...

Amlodipine maleate is a maleate salt of 3-ethyl 5-methyl 2-[(2-aminoethoxy)methyl]-4-(2chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate. An unknown impurity at m /z 392.2 for [M+H] ion has been detected during the accelerated stability analysis (40 °C /75 % RH) of amlodipine maleate drug substance by reverse-phase high performance liquid chromatography–mass spectrometry (RP-HPLC-MS)...

background: acute methanol poisoning is one of the most important chemical poisoning due to drinking of illegal and handmade alcoholic beverages in iran. the aim of this study was to evaluate clinical and biochemical parameters as prognostic factor in acute methanol poisoning. methods: a retrospective study was performed on acute methanol poisoning cases admitted to the loghman hakim hospital p...

Systematic impurity doping in the Cu-O plane of the hole-doped cuprate superconductors may allow one to decide between unconventional (”d-wave”) and anisotropic conventional (”s-wave”) states as possible candidates for the order parameter in these materials. We show that potential scattering of any strength always increases the gap minima of such s-wave states, leading to activated behavior in ...