12,663 research outputs found
Chosen logistics processes in Škoda JS
No full textThis master thesis deals with the purchase and sale process in Škoda JS company. The aim of this work is to assess whether the setting of the purchase and sale process is met by the company also within a real business case, in compliance with set controls, and whether the degree of perfect delivery is sufficient. In the introduction, the author specifies the basic terms: logistics, logistic chain, customer benefits, information systems in logistics, buying and selling. The following chapter introduces Škoda JS company, including the sphere of its entrepreneurial activity. This chapter also deals with the nuclear power industry. In the crucial chapter, the author describes the process of purchase and sale in Škoda JS company and compares it with a real business case. In conclusion, the author evaluates discrepancies and suggests recommendations to avoid them
A study on the double insulating layer for HgCdTe MIS structure
No full textThe double insulating layer consisting of anodic oxide grown in H2O2 electrolyte and thermally evaporated ZnS fiIm was formed for HgCdTe metal-insulator-semiconductor (MIS) structure in connection with the improvement of HgCdTe surface passivation. It was found for the first time through transmission electron microscopy (TEM) observation that an interface layer of 15 nm in thickness was formed between ZnS and anodic oxide layer. The chemical compositions investigated by energy dispersive: spectroscopy (EDS) using TEM and XPS measurements of depth composition profile and Zn chemical state indicated that the interface layer is composed of ZnO. It can be deduced that ZnO interface layer was caused by the chemical reactions between Zn atoms adsorbed on the surface of anodic oxide and the oxygen atoms diffusing out to the oxide surface in the initial stage of ZnS evaporation. Also TEM high resolution image showed that the structure of anodic oxide layer was changed from the amorphous state to the nanocrystalline structure of 10 nm in diameter after the evaporation of ZnS. The resistivity of double insulating layer was measured to be about 10(10) Omega cm which was proper as an insulating layer for HgCdTe MIS device. The small optical reflectance of about 75 in the region of 5 mu m showed an anti-reflection effect of the double insulating layer. The measured high frequency C-V curve showed a large shift of Rat band voltage due to the high density of fixed oxide charges, about 1.2 x 10(12) cm(-2). The oxygen vacancies and possible cationic state of Zn in the anodic oxide layer were estimated to cause this high density of fixed oxide charges
Modelling of crystal growth process in heat exchanger method
No full textTransient two-dimensional model of bismuth germanium oxide (EGO) crystal growth by the heat exchanger method has been developed. The moving boundary problems for the melt/solid interface location, the temperature field in the whole calculation domain and the flow held in the melt were solved by the two mapping rule method, which enabled the simulation of the melt/solid interface, changing from hemispherical to planar shape. The maximum deflection of the interface was observed when the melt/solid interface is at the corner of crucible. The effects of the various growth parameters were studied on the interface shape, the temperature profile and the stream function using this model. As the excess heating temperature was increased, the maximum deflection of the interface decreased. The heal exchanger temperature hardly affects the maximum deflection of the melt/solid interface. The maximum deflection of the melt/solid interface is not very sensitive to the value of the thermal conductivity of the melt of EGO
Clinical application of the ice water test in evaluation of neurogenic bladder dysfunction.
No full textAn ELISA for antibodies against infectious bronchitis virus using an S1 spike polypeptide
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Clinical outcome following DIAM implantation for symptomatic lumbar internal disk disruption: a 3-year retrospective analysis [Corrigendum]
No full textLu K, Liliang PC, Wang HK, Chen JS, Chen TY, Huang R, Chen HJ. J Pain Res. 2016;9:917–924. Page 917, author affiliation list, the authors have requested for the affiliations to be listed as shown below. Kang Lu1Po-Chou Liliang1Hao-Kuang Wang1Jui-Sheng Chen1Te-Yuan Chen1Ruyi Huang2Han-Jung Chen1,3 1Department of Neurosurgery, E-Da Hospital, I-Shou University, 2Department of Family Medicine, E-Da Hospital, I-Shou University, 3Department of Neurosurgery, E-Da Cancer Hospital, College of Medicine, I-Shou University, Kaohsiung, TaiwanRead the original articl
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