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Extensive Power Factor Calculation Method Using FPGA Considering Power Quality Disturbance
SHU-CHEN WANG,CHI-JUI WU 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
The power quality is more and more serious, because a lot of information technology equipments and power electric converters were used in recent years. Harmonic and load unbalance can affect the measurement result of power factor of utility. This paper used six formulas for power factor measurement, and they will be different according to the characteristics of load. The technology of semiconductor was more and more maturely. Design of SOC (System On a Chip) is a trend to achieve the strong and small volume in the future. The Fast Fourier Transform (FFT) is used to analyze the six formula of power factor. The simulation system was modeled in Hardware Description Language (VHDL) and some novel IP (intellectual property) cores, such as CORDIC core and FFT core by the way of Bottom-Up. The measurement data were employed to calculate active, reactive and apparent power. The average error rate of our design is about 0.05%.
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Comparison of Serum Tumor Associated Material (TAM) with Conventional Biomarkers in Cancer Patients
Shu, Jian,Li, Cheng-Guang,Liu, Yang-Chen,Yan, Xiao-Chun,Xu, Xu,Huang, Xin-En,Cao, Jie,Li, Ying,Lu, Yan-Yan,Wu, Xue-Yan,Liu, Jin,Xiang, Jin Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.5
Objective: To compare expression level of serum tumor associated materials (TAM) with several conventional serum tumor biomarkers, eg., carcinoembryonic antigen (CEA), carbohydrate antigen19-9 (CA19-9), carbohydrate antigen 15-3 (CA15-3), alpha-fetoprotein(AFP), in selected solid tumors. Methods: Patients diagnosed histologically or cytologically with liver, breast, esophageal, gastric, colorectal or pancreatic cancers were enrolled into this study. After diagnosis, the level of TAM was determined by chemical colorimetry, and levels of conventional tumor markers was measured by chemiluminescence methods. Results: A total of 560 patients were enrolled into this study. No statistically significant difference was detected in TAM and the above mentioned tumor biomarkers in terms of their positivity and negativity ( P>0. 05). Conclusions: Detection of TAM in liver, breast, esophageal, gastric, colorectal, and pancreatic cancer patients demonstrates a good accordance with CEA, CA199, CA153, and AFP, thus suggesting that further study is warranted to verify whether TAM could be a surrogate for these conventional biomarkers.
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A Wirelessly Powered Expanding-Extending Robotic Capsule Endoscope for Human Intestine
Shu He,Guo-Zheng Yan,Quan Ke,Zhi-Wu Wang,Wen-Wen Chen 한국정밀공학회 2015 International Journal of Precision Engineering and Vol. No.
Instruments for GI diagnostics are increasingly moving toward robotic capsule endoscopes because of their locomotion capabilities. This paper presents a wirelessly powered robotic capsule endoscope that can actively move in the small bowel exploiting the expanding–extending principle. After analyzing the demands of the locomotion, a novel radial motion mechanism with a large expanding/retracting radial ratio was designed, as was an axial motion mechanism with a compact structure. A control system with a special position detector to let the micro-motors avoiding stall state was developed to enhance the stability of the mechanism and reduce the robot’s power requirements. The wireless power system enabled the robot to inspect the full length of the intestinal tract. The assembled micro-robot was 14 mm in diameter and 45 mm in length. The maximum anchoring diameter was 32 mm, and the axial telescopic length was 9.5 mm. The test results proved the feasibility of the robot.
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Shu-Wan Chiang,Shu-Chen Wu,Tai-Chu Peng 한국간호과학회 2021 Asian Nursing Research Vol.15 No.1
Purpose: The purpose of this study was to explore the experiences of caregivers in long-term care facilities as they implement palliative care. Although palliative care has been available in Taiwan for more than 30 years, it is often provided in hospitals, few models in the long-term care facilities. Methods: Semi-structured interviews using grounded theory methodology and purposive sampling. Two small long-term care facilities that had performed well in palliative care were selected from eastern Taiwan. A total of 12 caregivers participated in in-depth semi-structured face-to-face interviews. Results: Four major stages in the implementation of palliative care were identified: (1) feeling insecure, (2) clarifying challenges, (3) adapting to and overcoming the challenges, and (4) comprehending the meaning of palliative care. The core category of these caregivers as “the guardians at the end of life” reflects the spirit of palliative care. Conclusion: This study demonstrates that successful palliative care implementation would benefit from three conditions. First, the institution requires a manager who is enthusiastic about nursing care and who sincerely promotes a palliative care model. Second, the institution should own caregivers who possess personality traits reflective of enthusiasm for excellence, unusual ambition, and a true sense of mission. Third, early in the implementation phase of the hospice program, the institution must have the consistent support of a high-quality hospice team.
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Understanding Breast Cancer Screening Practices in Taiwan: a Country with Universal Health Care
Wu, Tsu-Yin,Chung, Scott,Yeh, Ming-Chen,Chang, Shu-Chen,Hsieh, Hsing-Fang,Ha, Soo Ji Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.9
While the incidence of breast cancer (BC) has been relatively low in Asian countries, it has been rising rapidly in Taiwan. Within the last decade, it has replaced cervical cancer as the most diagnosed cancer site for women. Nevertheless, there is a paucity of studies reporting the attitudes and practices of breast cancer screening among Chinese women. The aim of this study is to assess Taiwanese women's knowledge of and attitudes toward BC screening and to identify potential factors that may influence screening behavior. The study population consisted of a sample of 434 Taiwanese women aged 40 and older. Despite access to universal health care for Taiwanese women and the fact that a majority of the women had heard of the breast cancer screening (mammogram, clinical breast exams, etc.), the actual utilization of these screening modalities was relatively low. In the current study, the majority of women had never had mammograms or ultrasound in the past 5 years. The number one most reported barriers were "no time," "forgetfulness," "too cumbersome," and "laziness," followed by the perception of no need to get screened. In addition, the results revealed several areas of misconceptions or incorrect information perceived by study participants. Based on the results from the regression analysis, significant predictors of obtaining repeated screening modalities included age, coverage for screening, barriers, self-efficacy, intention, family/friends diagnosed with breast cancer. The findings from the current study provide the potential to build evidence-based programs to effectively plan and implement policies in order to raise awareness in breast cancer and promote BC screening in order to optimize health outcomes for women affected by this disease.
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