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- 검색키워드
- 저자 : Chih-Hsiang Ko (검색결과 3 건)
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Chih-Weim Hsiang,Wei-Chou Chang,Chang-Hsien Liu,Hsiu-Lung Fan,Kai-Hsiung Ko,Chih-Yung Yu,Hong-Hau Wang,Wen-I Liao,Hsian-He Hsu 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.2
Purpose: To compare the clinical and computed tomography (CT) appearances of liver abscesses caused by non-Klebsiella pneumoniae bacterial pathogens in elderly and nonelderly patients. Materials and Methods: Eighty patients with confirmed non-Klebsiella pneumoniae liver abscesses (non-KPLAs) were enrolled and dividedinto two age groups: elderly (age ≥65 years, n=42) and nonelderly (age <65 years, n=38). Diagnosis of non-KPLA was established by pus and/or blood culture. We compared clinical presentations, outcomes, and CT characteristics of the two groups, and performed multivariate analysis for significant variables and receiver-operating-characteristic analysis to determine the cutoff value of abscess diameter for predicting non-KPLA. Results: Elderly patients with non-KPLA were associatedwith a longer hospital stay (p<0.01). Regarding etiology, biliary sources had a strong association in the elderly group (p<0.01), and chronic liver diseases were relatedto the nonelderly group (p<0.01). Non-KPLAs (52.5%) tended to show a large, multiloculated appearance in the elderly group and were associated with bile duct dilatation (p<0.01), compared with the nonelderly group. The abscess diameter (cutoff value, 5.2 cm; area under the curve, 0.78) between the two groups was predicted. In multivariate analysis, underlying biliary tract disease [odds ratio (OR), 3.58, p<0.05], abscess diameter (OR, 2.40, p<0.05), and multiloculated abscess (OR, 1.19, p<0.01) independently predicted elderly patients with non-KPLA. Conclusion:In the elderly patients with non-KPLA, a large, multiloculated abscess with a diameter greater than 5.2 cm was the predominant imaging feature.
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AN AUGMENTED REALITY BASED SERVICE DESIGN MODEL FOR DIGITAL FABRICATION
Chih-Hsiang Ko 글로벌지식마케팅경영학회 2023 Global Marketing Conference Vol.2023 No.07
The focus of this paper was on the establishment of a service design model for digital fabrication. Service design processes and tools were used to identify problems of current digital fabrication systems. Augmented reality was deployed to substantiate two-dimensional information by combining it with digital fabrication equipment to enhance interactivity and engagement. The fuzzy Delphi method was used to consult the expert’s opinions to optimize the model for increasing overall system satisfaction. A two-dimensional quality questionnaire was designed to survey the participant’s opinions on the system’s satisfaction. The result indicated that the participants reacted positively to augmented reality and the service design model. The result of this paper was helpful for the exchange and diffusion of digital knowledge to strengthen people’s interaction with information. It can improve the efficiency of entire value chains, including product development, marketing and service, which is crucial to future innovative design and fabrication practice.
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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.
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