http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Xue Qin,Xie Guohua 한국정보디스플레이학회 2020 Journal of information display Vol.21 No.3
Organic light-emitting devices (OLEDs) on the silicon backplanes processed via the standard foundry complementary metal–oxide-semiconductor (CMOS) processes were developed with the state-of-the-art electrical doping technology to meet the optical and electrical requirements, resulting in high luminance (over 5000 cd/m2) for the green emissive OLED microdisplay. The unavoidable oxidized aluminium contact after the CMOS processes on the top layer of the pixel was found to significantly increase the driving voltage of the device (up to 1 V at 100 cd/m2 luminance). To aid in the extraction of the accurate device parameters for setting up an equivalent circuit, the reference top-emitting OLEDs without bottom metal contacts were deposited directly on interconnection-metal-only silicon substrates from the CMOS foundry. The distribution of the AlOx of the top-layer metal contact on silicon (the bottom anode of OLEDs) was confirmed by the X-ray photoelectron spectroscopy (XPS) depth profiles.
On Accurate and Efficient Judgment Method of Milling Stability Based on Predictor–Corrector Scheme
Weida Lou,Guohua Qin,Xiaochun Lai,Yuanjun Hou 한국정밀공학회 2023 International Journal of Precision Engineering and Vol.24 No.11
The accurate and efficient identification of milling stability region is key to suppressing chatter and improving production efficiency. Therefore, the theory of “predictor–corrector” is dependent on proposing a new method for milling stability prediction. Firstly, the delay differential equation on regenerative chatter is turned into the state space expression. Then, the Milne formula is used to predict the displacement whereas the Simpson formula corrects this predicted value. Furthermore, a discrete prediction-correction expansion with higher precision is constructed to obtain the state transition express. Based on the Floquet theory, the milling stability can be judged. Finally, the comparison of local discretization errors obtained by the proposed method with other methods shows that the proposed method has a faster convergence speed than the contrast methods. Obviously, under the same discretization conditions, the proposed method can not only achieve higher computational accuracy than the contrast methods but also obtain faster computational efficiency. Both 29 groups of the simulation results and 9 groups of experimental measurements can further validate the presented method in actual prediction effect.
Effect of Hydrogen and Oxygen Mixed Inhalation on Non-alcoholic Fatty Liver Disease
Xue Yazhuo,Zhang Guangjie,Song Guohua,Qin Shucun 한국물학회 2019 한국물학회지 Vol.7 No.1
Non-alcoholic fatty liver disease is closely related to insulin resistance and genetic susceptibility, and it is a metabolic stress liver injury. As a result of the multifactorial pathological development in vivo, endogenous reactive oxygen species (ROS) increase, leading to inflammatory necrosis of hepatocytes. In recent years, many studies have confirmed that hydrogen is not a physiological inert gas. It has reliable therapeutic properties for some diseases, such as type 2 diabetes, Parkinson's disease, atherosclerosis and so on. It can be said that hydrogen is a gas with great potential medical value. We used nitrogen-oxygen mixture as control, and inhaled hydrogen-oxygen mixture (66% hydrogen and 33% oxygen) to non-alcoholic fatty liver patients. We found that hydrogen can improve the blood lipid level, reduce the plasma total cholesterol level and low density lipoprotein level, and increase the liver/spleen CT ratio in patients with non-alcoholic fatty liver. At the same time, hydrogen can improve the anti-inflammatory and anti-oxygen ability of plasma in patients with non-alcoholic fatty liver. It can reduce plasma glutamic oxaloacetic transaminase and alanine transaminase levels in patients with nonalcoholic fatty liver disease. The results showed that hydrogen could protect hepatocytes and alleviate the degree of nonalcoholic fatty liver.