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Wei-Che Lin,Wen-Chieh Chen,Pei-Wen Wang,Yi-Chia Chan,Yen-Hsiang Chang,Harn-Shen Chen,Szu-Tah Chen,Wei-Chih Chen,Kai-Lun Cheng,Shun-Yu Chi,Pi-Ling Chiang,Chen-Kai Chou,Feng-Fu Chou,Shun-Chen Huang,Feng 대한초음파의학회 2023 ULTRASONOGRAPHY Vol.42 No.3
Radiofrequency ablation (RFA) is a minimally invasive management strategy that has been widely applied for benign and recurrent malignant thyroid lesions as an alternative to surgery in Taiwan. Members of academic societies for specialists in interventional radiology, endocrinology, and endocrine surgery collaborated to develop the first consensus regarding thyroid RFA in Taiwan. The modified Delphi method was used to reach a consensus. Based on a comprehensive review of recent and valuable literature and expert opinions, the recommendations included indications, pre-procedural evaluations, procedural techniques, post-procedural monitoring, efficacy, and safety, providing a comprehensive review of the application of RFA. The consensus effectively consolidates advice regarding thyroid RFA in clinical practice for local experts.
Chen, Chien-Chou,Wu, Wen-Hwa,Huang, Chin-Hui,Lai, Gwolong Techno-Press 2013 Smart Structures and Systems, An International Jou Vol.11 No.4
Due to its easy operation and wide applicability, the ambient vibration method is commonly adopted to determine the cable force by first identifying the cable frequencies from the vibration signals. With given vibration length and flexural rigidity, an analytical or empirical formula is then used with these cable frequencies to calculate the cable force. It is, however, usually difficult to decide the two required parameters, especially the vibration length due to uncertain boundary constraints. To tackle this problem, a new concept of combining the modal frequencies and mode shape ratios is fully explored in this study for developing an accurate method merely based on ambient vibration measurements. A simply supported beam model with an axial tension is adopted and the effective vibration length of cable is then independently determined based on the mode shape ratios identified from the synchronized measurements. With the effective vibration length obtained and the identified modal frequencies, the cable force and flexural rigidity can then be solved using simple linear regression techniques. The feasibility and accuracy of the proposed method is extensively verified with demonstrative numerical examples and actual applications to different cable-stayed bridges. Furthermore, several important issues in engineering practice such as the number of sensors and selection of modes are also thoroughly investigated.
( Chen Wang Chang ),( Shu Chen Wei ),( Jen Wei Chou ),( Tzu Chi Hsu ),( Chiao Hsiung Chuang ),( Ching Pin Lin ),( Wen Hung Hsu ),( Hsu Heng Yen ),( Jen Kou Lin ),( Yi Jen Fang ),( Horng Yuan Wang ),( 대한장연구학회 2014 Intestinal Research Vol.12 No.4
Background/Aims: Only moderate to severe Crohn`s Disease (CD) patients without a satisfactory conventional therapy effect are eligible to get reimbursement from the National Health Insurance of Taiwan for using adalimumab. These are more stringent criteria than in many Western countries and Japan and Korea. We aim to explore the efficacy of using adalimumab in CD patients under such stringent criteria. Methods: A retrospective analysis was conducted in nine medical centers in Taiwan and we collected the results of CD patients receiving adalimumab from Sep 2009 to Mar 2014. The clinical characteristics, response measured by CDAI (Crohn`s Disease Activity Index), adverse events and survival status were recorded and analyzed. CR-70, CR-100, and CR-150 were defined as attaining a CDAI decrease of 70, 100 or 150 points compared with baseline. Results: A total of 103 CD patient records were used in this study. Sixty percent of these patients received combination therapy of adalimumab together with immunomodulators. CR-70 was 68.7%, 74.5% and 88.4% after week 4, 8 and 12 of treatment, respectively. The steroid-free rate, complications and survival were 47.6%, 9.7% and 99% of patients, respectively. In considering the mucosal healing, only 25% patients achieve mucosal healing after treatment for 6 to12 months. Surgery was still needed in 16.5% of patients. Combination treatment of adalimumab with immunomodulators further decreased the level of CDAI at week 8 when compared with the monotherapy. Conclusions: Even under the stringent criteria for using adalimumab, the response rate was comparable to those without stringent criteria. (Intest Res 2014;12:287-292)
Probing the surface viscoelasticity of polymer films
Chen, Ming-Chou,Kim, Choongik 한국유변학회 2014 Korea-Australia rheology journal Vol.26 No.1
Glass transition temperature, one of the most important properties of amorphous polymers in many technological applications, exhibits deviation from bulk value for nanoconfined polymer thin films. Glass transition temperature deviation due to enhanced/ restricted polymer chain dynamics at the polymer surface or substrate interface has been probed by many different experimental techniques. In this paper, we describe recent experimental techniques which could probe the surface glass transition temperature of polymer thin films, their advantages and limitations, and organic thin-film transistor as a new tool to probe the surface viscoelasticity of polymer films.
Chen-Ju Lin,Ching-Chou Chen 기술경영경제학회 2013 ASIAN JOURNAL OF TECHNOLOGY INNOVATION Vol.21 No.1
This paper establishes how management can strengthen the proactive innovation of businessunits as well as how frontline employees can react to local environments through theidentification of the strategic actions by local firms. We examine the environment-strategyperformanceparadigm through a comparative analysis of a vertical and horizontal structureperspective tested by structural equation modelling, yielding a sample of 252 groups of 382dual informants interrelated as local managers and frontline employees from local insuranceservice firms. The findings indicate that perceived market uncertainty is influential indecentralizing management and in the proactive innovation of frontline employees. Consistent with management perception, employees consider resource commitment fromhubs and environmental scanning to be effective practices to facilitate proactive innovation. Frontline employees do not strongly consider tolerance in task conflict as a means toachieve proactive innovation, whereas their managers regard it as a method to encourage thefree expression of ideas. We use a comparative analysis to disclose the implied perceptionaldifferences in multilevel interactions for promoting organizational proactive innovationinstead of the monotonous method to test and interpret a theoretical model.
Data Hiding for HTML Files Using Character Coding Table and Index Coding Table
( Yung-chen Chou ),( Ping-kun Hsu ),( Iuon-chang Lin ) 한국인터넷정보학회 2013 KSII Transactions on Internet and Information Syst Vol.7 No.11
A data hiding scheme in HTML files is presented in this paper. Web pages are a very popular medium for broadcasting information and knowledge nowadays, and web pages are a good way to achieve the goal of secret message delivery because the different HTML coding codes will render the same screen in any of the popular browsers. The proposed method utilizes the HTML special space codes and sentence segmentation to conceal secret messages into a HTML file. The experimental results show that the stego HTML file generated by the proposed method is imperceptible. Also, the proposed method can conceal one more secret bit in every between-word location.
( Shu-Chen Wei ),( Ting-An Chang ),( Te-Hsin Chao ),( Jinn-Shiun Chen ),( Jen-Wei Chou ),( Yenn-Hwei Chou ),( Chiao-Hsiung Chuang ),( Wen-Hung Hsu ),( Tien-Yu Huang ),( Tzu-Chi Hsu ),( Chun-Chi Lin ) 대한장연구학회 2017 Intestinal Research Vol.15 No.3
Ulcerative colitis (UC) is an inflammatory bowel disease characterized by chronic mucosal inflammation of the colon, and the prevalence and incidence of UC have been steadily increasing in Taiwan. A steering committee was established by the Taiwan Society of Inflammatory Bowel Disease to formulate statements on the diagnosis and management of UC taking into account currently available evidence and the expert opinion of the committee. Accurate diagnosis of UC requires thorough clinical, endoscopic, and histological assessment and careful exclusion of differential diagnoses, particularly infectious colitis. The goals of UC therapy are to induce and maintain remission, reduce the risk of complications, and improve quality of life. As outlined in the recommended treatment algorithm, choice of treatment is dictated by severity, extent, and course of disease. Patients should be evaluated for hepatitis B virus and tuberculosis infection prior to immunosuppressive treatment, especially with steroids and biologic agents, and should be regularly monitored for reactivation of latent infection. These consensus statements are also based on current local evidence with consideration of factors, and could be serve as concise and practical guidelines for supporting clinicians in the management of UC in Taiwan. (Intest Res 2017;15:266-284)
Chien-Chou Chen,Wen-Hwa Wu,Chun-Yan Liu,Gwolong Lai 국제구조공학회 2016 Smart Structures and Systems, An International Jou Vol.17 No.6
This study aims to establish an effective methodology for the detection of instant damages occurred in cable-stayed bridges with the measurements of cable vibration and structural temperatures. A transfer coefficient for the daily temperature variation and another for the long-term temperature variation are firstly determined to eliminate the environmental temperature effects from the cable force variation. Several thresholds corresponding to different levels of exceedance probability are then obtained to decide four upper criteria and four lower criteria for damage detection. With these criteria, the monitoring data for three stay cables of Ai-Lan Bridge are analyzed and compared to verify the proposed damage detection methodology. The simulated results to consider various damage scenarios unambiguously indicate that the damages with cable force changes larger than +-1.5% can be detected within 12 hours. Even though not exhaustively reflecting the environmental temperature effects on the cable force variation, both the effective temperature and the air temperature can be considered as valid indices to eliminate these effects at high and low monitoring costs.