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Che Yu Kuo,Kao Chin Chen,I Hui Lee,Huai-Hsuan Tseng,Nan Tsing Chiu,Po See Chen,Yen Kuang Yang,Wei Hung Chang 대한정신약물학회 2022 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.20 No.2
Objective: The impact of serotonergic system on obsessive-compulsive disorder (OCD) is well studied. However, the correlation between OC presentations and autonomic nervous system (ANS) is still unclear. Furthermore, whether the correlation might be modulated by serotonin is also uncertain. Methods: We recruited eighty-nine healthy subjects. Serotonin transporter (SERT) availability by [123I]ADAM and heart rate variability (HRV) tests were measured. Symptoms checklist-90 was measured for the OC presentations. The interaction between HRV and SERT availability were calculated and the correlation between HRV and OC symptoms were analyzed after stratified SERT level into two groups, split at medium. Results: The interactions were significant in the factors of low frequency (LF), high frequency (HF), and root mean square of successive differences (RMSSD). Furthermore, the significantly negative correlations between OC symptoms and the above HRV indexes existed only in subjects with higher SERT availability. Conclusion: OC symptoms might be correlated with ANS regulations in subjects with higher SERT availability.
A 5MHz LC-LC Resonant Wireless Power Transfer System
Che-Yu Lu,Hung-Chi Chen,Chin-Wei Chan 전력전자학회 2023 ICPE(ISPE)논문집 Vol.2023 No.-
This paper proposes a wireless power transfer system with an LC-LC resonant power transmitter and a series resonant power receiver whose resonant frequency is close to 5MHz. Different from the inductive wireless power transfer system discussed in current topologies, it has a wide range of power supplies, long transfer distance, and one-to-many power supply, which improves the defects of inductive power transfer systems. In the experimental result, the power transmitter can provide a stable coil current, which will not change too much due to the placement of metal objects on the coil, the load change in the power receiver, and the rapid movement of the power receiver position. Therefore, the power receiver can obtain a stable power supply that provides a constant charging current and rectified voltage.
(Chin Tsai Lin),(Chie Bein Chen),(Che Wei Chang) 한국품질경영학회 2002 The Asian Journal on Quality Vol.3 No.1
Silicon wafer slicing manufacturing process exhibits several characteristics. They are: (1) the product type is small batch production, (2) saw cutting must be very precise, (3) the process run time is long, and (4) inspecting samples is difficult. Furthermore, the process involves several synchronously occurred multiple quality characteristics, such as thickness(THK), bow and warp, which must be closely monitored and controlled. Synchronously monitoring multiple quality characteristics is more expensive than monitoring a single quality characteristic in the manufacturing process. The sizes of inspected samples in the existing process are difficult to maintain the quality control chart. Grey situation decision method is used to screen the worst quality characteristic from the synchronously occurred multiple quality characteristics to monitor the process. Finally, a case study is presented to demonstrate the feasibility and effectiveness of proposed decision method. The exponential weighted moving average (EWMA) control chart is used to verify that the process quality is more reliable.
Lin, Chin-Tsai,Chang, Che-Wei,Wu, Cheng-Ru,Chen, Huang-Chu The Korean Society for Quality Management 2006 The Asian Journal on Quality Vol.7 No.2
This study describes a novel algorithm for optimizing the quality yield of silicon wafer slicing. 12 inch wafer slicing is the most difficult in terms of semiconductor manufacturing yield. As silicon wafer slicing directly impacts production costs, semiconductor manufacturers are especially concerned with increasing and maintaining the yield, as well as identifying why yields decline. The criteria for establishing the proposed algorithm are derived from a literature review and interviews with a group of experts in semiconductor manufacturing. The modified Delphi method is then adopted to analyze those results. The proposed algorithm also incorporates the analytic hierarchy process (AHP) to determine the weights of evaluation. Additionally, the proposed algorithm can select the evaluation outcomes to identify the worst machine of precision. Finally, results of the exponential weighted moving average (EWMA) control chart demonstrate the feasibility of the proposed AHP-based algorithm in effectively selecting the evaluation outcomes and evaluating the precision of the worst performing machines. So, through collect data (the quality and quantity) to judge the result by AHP, it is the key to help the engineer can find out the manufacturing process yield quickly effectively.
Hui-Fen Wu,Suresh Kumar Kailasa,Ja-Yi Yan,Chen-Che Chin,Hsin-Yi Ku 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.4
This paper describes the use of single-drop microextraction and micro-volume pipette extraction coupled with capillary electrophoresis for the analysis of five antidepressant drugs (nortriptyline, imipramine, trimeprazine, promethazine, and iminodibenzyl). The five antidepressant drugs are well separated by using micellar electrokinetic capillary chromatography with SDS and organic modifiers. The best extraction was achieved within 10 min and effectively separated within 15 min by using ammonium acetate buffer at 28 kV. This method shows good reproducibility, with RSD values ranging from 4.3 to 8.7%. The LODs values were found to be 0.4 and 1.0 mg mL-1 for SDME-CE and 0.15 and 0.5 mg mL-1 for MVPE-CE. These methods are simple, rapid, sensitive and efficient for the extraction, separation and detection of tricyclic antidepressant drugs.