نتایج جستجو برای: beo
تعداد نتایج: 285 فیلتر نتایج به سال:
Purpose Little is known about the long-term status of pediatric rheumatology patients who transition to adult care. Increasing numbers of Med-Peds graduates have chosen to train in dual subspecialties such as rheumatology. These practitioners are able to provide continuity of care to such patients. A Med-Peds rheumatologist (BEO) has practiced at our medical center providing pediatric rheumatol...
Abstract The corrosion behavior of TiZrHfBeCu(Ni) high-entropy bulk metallic glasses (HE-BMGs) has been investigated. HE-BMGs exhibited high resistance in 3.5 wt. % NaCl solution because accumulation ZrO 2 and TiO the passive film. Ni promoted increases , HfO contents a decrease BeO content, which improved HE-BMG behavior. Compared with Zr 41.2 Ti 13.8 10 Cu 12.5 Be 22.5 BMG, effect can signifi...
Thin oxide films formed on commercial metal/porcelain Ni-Cr alloy containing Be, were studied by using the electron probe microanalyzer (EPMA) with the glass lining technique and by the X-ray diffraction method with the Debye-Scherrer camera. Oxidation was restricted to form thin oxide films as follows; at 700•Ž for 5 minutes in air, at 1,000•Ž for 2 minutes in air, and at 1,000•Ž for 40 minute...
Beryllium oxide (BeO) nanopowder was synthesized using sol-gel method and the effects of changes of chemical reagents were investigated. Because of tissue equivalence and other outstanding thermoluminescence (TL) properties of the bulk material in X and γ dosimetry, the applicability of this nanostructure in TL dosimetry was studied following irradiation to the 137 C...
We carried out a combined study of UV-VUV luminescence and resonant x-ray emission from BeO single crystals with incident photon energies in the vicinity of the Be 1s absorption edge. The x-ray emission spectra show that at the Be 1s photoabsorption edge the lattice relaxation processes in the excitation site take place already on the timescale of the radiative decay of the core excitation. Com...
The gravitational spectrometer GRANIT will be set up at the Institut Laue Langevin. It will profit from the high ultracold neutron density produced by a dedicated source. A monochromator made of crystals from graphite intercalated with potassium will provide a neutron beam with 8.9 Å incident on the source. The source employs superthermal conversion of cold neutrons in superfluid helium, in a v...
Only limited data are available on tritium release from irradiated Be. Few models have been suggested for tritium release from beryllium. Simple diffusion/desorption models have been proposed, but lack the capability of accounting for important phenomena such as burst release through interconnected porosity and the effect of the Be0 impurity layer. This paper describes the application of a new ...
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