http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Daeseok Lee,Joonmyoung Lee,Seungjae Jung,Seonghyun Kim,Jubong Park,Biju, K. P.,Minhyeok Choe,Takhee Lee,Hyunsang Hwang IEEE 2011 IEEE transactions on nuclear science Vol.58 No.6
<P>In this study, we investigated proton irradiation effects on resistive random access memory (ReRAM) comprising ZrO<SUB>x</SUB>/HfO<SUB>x</SUB> stacks. After irradiation, changes of current were observed in the initial state (IS). From the electrical conduction mechanism in the IS, we have concluded that the different initial conditions of the active layer lead to different radiation effects. The radiation-induced leakage paths have been concluded as main origin of the increased leakage current, whereas radiation-induced charge trapping is dominant fact of the decreased leakage current in the IS. From the results of noise analysis in the low resistance state (LRS) and high resistance state (HRS), we observed that the radiation effects became negligible because of the formed local conducting path during forming process.</P>
Less Weight Gain in Obese Rats by Feeding Biocellulose
Daeseok Han,Tae-Cheol Song,Dong Woo Kim,Chang-Ho Lee,Young-Eon Kim,In-Ho Kim 한국식품과학회 2009 Food Science and Biotechnology Vol.18 No.1
This study evaluated the effect of biocellulose and the diet formulation on reducing body weight gain of obese rats induced by high-fat diet for 10 weeks. Thirty male Sprague-Dawley rats were randomly assigned to high-fat diet group (OBCON), high-fat diet group containing 5% biocellulose (OB-BIO), and high-fat diet group containing 5% dietary formulation (OB-DF). After feeding each diet for additional 10 weeks, body weight gains of OB-BIO and OB-DF groups were lower by 3.3 and 4.8%, respectively as compared with that of OB-CON group. Although not significant, measured values of the perirenal and visceral fat pads of OB-BIO and OB-DF groups were lower than those of the OB-CON group. The weight of interscapular brown adipose tissue did not show significant difference in all groups. The size of adipocyte in rats was lower in both OB-BIO and OB-DF groups. Thus, biocelluose and the diet formulation showed the anti-obesity effect.
Daeseok Han,Kiyoyuki Kaito,Kiyoshi Kobayashi 대한토목학회 2014 KSCE Journal of Civil Engineering Vol.18 No.7
The heart of asset management systems for road infrastructure is the deterioration forecasting model. It provides the most fundamental information for better asset management. So far, there are many practices to build a reliable forecasting model using inspection data in conjunction with statistical theories. In many applications, however, an inadequate stock of inspection data or difficulty in applying sophisticated statistical methods have often been serious obstacles. As a solution, this paper suggests applying the Bayesian estimation method with a multi-state exponential hazard Markov chain model for simple and reliable deterioration forecasting for infrastructure. The main contents of this paper are an introduction of the model’s framework combining Markov chain, hazard theory, and Bayesian estimation method, and a demonstration of its practical application with an empirical study. The empirical study was conducted with time-series inspection data of pavement from the Korean National Highways. The estimation results from the suggested method would be useful for improving the current pavement maintenance strategy for Korean National Highways. However, the most important message of this paper is that the framework of the Bayesian Markov hazard model could be the best model to use for other civil infrastructure that has gradual changes in condition. The great advantages from the Bayesian estimation method may facilitate development of customized asset management systems.