http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yu-Chih Lin,Chung-Liang Chang,Tser-Sheng Lin,Hsunling Bai,Ming-Gu Yan,Fu-Hsiang Ko,Chia-Tien Wu,Cheng-Hsiung Huang 한국화학공학회 2008 Korean Journal of Chemical Engineering Vol.25 No.3
This study utilized the activated carbon fiber (ACF) modified with metal catalyst via physical vapor deposition (PVD) process (ACF/PVD) to diminish ozone. Furthermore, the ozone removal efficiency of ACF/PVD was compared with that of original ACF and ACF modified with metal catalyst via impregnation process (ACF/impregnation). In addition to the kinds of coated metal and the inlet ozone concentrations, the effects of the coating thickness and the reaction temperature on ACF/PVD for ozone removal were also examined. The results indicate that the ozone removal efficiency of ACF/PVD is better than that of original ACF and ACF/impregnation. The ozone removal efficiency of different metal-coated ACF/PVD in the superior order is gold (Au), and manganese (Mn). The increase of Au-coated thickness (3 nm to 80 nm) on ACF/PVD will enhance the ozone removal. However, when the Mn-coated thickness on ACF/PVD is larger than 15 nm, the ozone removal efficiency displays a declining trend. Furthermore, a higher reaction temperature will result in a better ozone removal of ACF/PVD and the original ACF.
OPEN SERVICE INNOVATION: PROPOSED ANTECEDENTS AND MODERATORS FROM KNOWLEDGE-BASED VIEW
Fu-Sheng Tsai,Julia L. Lin,Yu-Chia Chen 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7
The present paper discusses the interrelationship among knowledge creation, heterogeneity, and open service innovation – an important theme of marketing research. Drawing on the literature of knowledge based innovation, we argue that both researchers and practitioners should extend the functionality of created knowledge into open and service-oriented innovation context. Our conceptual framework represent the following major points. First, the four classic knowledge creation mode each has different influences on open service innovation, given employee and customer knowledge is a cornerstone of service innovation. Specifically, socialization positively, externalization positively, combination positively, and internalization negatively predicts open service innovation. Second, knowledge heterogeneity moderates in the above mentioned relationships. Implication are discussed
Inverse Analysis of Inconel 718 Laser-Assisted Milling to Achieve Machined Surface Roughness
Yixuan Feng,Tsung-Pin Hung,Yu-Ting Lu,Yu-Fu Lin,Fu-Chuan Hsu,Chiu-Feng Lin,Ying-Cheng Lu,Xiaohong Lu,Steven Y. Liang 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.11
This manuscript proposes an inverse analysis method for the machined surface roughness in laser-assisted milling on Inconel 718. The method solves the forward problem considering the tool profile and the elastic recovery of machined surface and applies the variance-based recursive method to guide the updating mechanism of process parameters to match the measurements. Subsequently, the inverse analysis identifies four process parameters of feed per tooth, tool tip radius, minimum cutting thickness, and tool tip angle, and finds the optimal solution for target performance, the surface roughness. The measurements are collected under the single beam coaxial laser-assisted milling spindle. The proposed modified Kalman filter algorithm introduces the gain coefficient G when updating the process parameters to improve robustness and accuracy. The inverse analysis is conducted on all measurements, and the average error of target performance is 0.460% when the laser is on and 0.394% when the laser is off. The average difference of process parameters is less than 5%, and the selection process is done in 50 loops within a minute. Therefore, the proposed inverse analysis model is robust, adaptive to different initial guesses and measurements, highly accurate, and saves computation time.
Yu, Fu-Chao,Hao, Xiao-Pan,Jiang, Xiu-Yang,Yan, Sheng-Jiao,Lin, Jun Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.6
A concise and efficient one-pot synthesis of chroman-2,4-dione-based HKA derivatives by three component reaction of HKAs, triethoxymethane and 4-hydroxycoumarin derivatives under solvent-free and catalyst-free conditions is described. This protocol has many advantages, in that the GAP (Group-Assistant-Purification) chemistry process is involved in this method. As a result, the experimenter can avoid cumbersome process steps such as traditional chromatography and recrystallization purifications. The desired products can be easily obtained by washing the crude products with 95% EtOH.
Fu-hua Lin,Bo Wang,Shuang-dan Mao,Xiang-yang Li,Yu-ying Zhao,Ying-Hui Wei 한국고분자학회 2021 폴리머 Vol.45 No.5
The microcrystalline cellulose (MCC) was used for inducing crystallization of the isotactic polybutene-1 (iPB) and the maleic anhydride grafted polybutene-1 (MAPB) was used as a compatibilizer. The crystallization behavior of the composite demonstrated that the addition of MCC could significantly accelerate the crystallization rate of iPB and the addition of MAPB could improve the compatibility between MCC and iPB. Moreover, the properties of the composites with MAPB were better than those without MAPB. The crystal transformation had been completed after storage for 5 days and the form I was formed after storage for 3 days which was faster than pure iPB. The non-isothermal crystallization kinetics data of the composites indicated that the modified Avrami equation could describe the non-isothermal crystallization process of the iPB/MCC composite and the t1/2 of the composites was shortened for 24.32% and 40.27% which indicated that MCC could promote the crystallization of iPB.
Features Extraction and Mechanism Analysis of Partial Discharge Development under Protrusion Defect
Yu-lin Dong,Ju Tang,Fu-ping Zeng,Min Liu 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.1
In order to study the development of partial discharge (PD) under typical protrusion defects in gas-insulated switchgear, we applied step voltages on the defect and obtained the φ.u and φ.n spectrograms of ultra-high frequency (UHF) PD signals in various PD stages. Furthermore, we extracted seven kinds of features to characterize the degree of deterioration of insulation and analyzed their values, variation trends, and change rates. These characteristics were inconsistent with the development of PD. Hence, the differences of these features could describe the severity of PD. In addition, these characteristics could provide integrated characteristics regarding PD development and improve the reliability of PD severity assessment because these characteristics were extracted from different angles. To explain the variation laws of these seven kinds of parameters, we analyzed the relevant physical mechanism by considering the microphysical process of PD formation and development as well as the distortion effect generated by the space charges on the initial field. The relevant physical mechanism effectively allocated PD severity among these features for assessment, and the effectiveness and reliability of using these features to assess PD severity were proved by testing a large number of PD samples.
Mutual Funds Herding under Financial Crises : Evidence from Taiwan Stock Markets
Yu-Fen Chen,Sheng-Yung Yang,Fu-Lai Lin 한국재무학회 2012 한국재무학회 학술대회 Vol.2012 No.09
This paper intends to investigate herding behavior of mutual fund managers participated in Taiwan stock market, especially as they were facing the regional and global financial crises in 1997 and 2008. Furthermore, it identifies fund managers’ optimal choices of trading strategies as they are facing the shallow-dish characteristics in Taiwan stock market. The empirical results reveal that fund managers do herd as they are picking up their portfolios. Instead of pursuing stocks with high speculative intensity, mutual fund managers adhere to the prudent rule to trade. However, the trading styles are not robust during the period of 1997 Asian financial crisis.
Fu-Chao Yu,Xiao-Pan Hao,Xiu-Yang Jiang,Sheng-jiao Yan,Jun Lin 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.6
A concise and efficient one-pot synthesis of chroman-2,4-dione-based HKA derivatives by three component reaction of HKAs, triethoxymethane and 4-hydroxycoumarin derivatives under solvent-free and catalyst-free conditions is described. This protocol has many advantages, in that the GAP (Group-Assistant-Purification) chemistry process is involved in this method. As a result, the experimenter can avoid cumbersome process steps such as traditional chromatography and recrystallization purifications. The desired products can be easily obtained by washing the crude products with 95% EtOH.