http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Lu-Ting Chiu (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
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.
-
Peng-Yi Lee,Jung-Nien Lai,Shang-Wen Chen,Ying-Chun Lin,Lu-Ting Chiu,Yu-Ting Wei 대한부인종양학회 2021 Journal of Gynecologic Oncology Vol.32 No.2
Objective: This study aimed to determine the effect of radiotherapy (RT) on the risk of herpeszoster (HZ) in patients with gynecological cancers via a nationwide population-based study. Methods: Based on patient data obtained from the National Health Insurance ResearchDatabase, 1928 gynecological cancer patients were identified with 1:1 matching for RT andnon-RT cohorts by age, index date, and cancer type. Another cohort consisting of 964 non cancer individuals matched was used as normal control. The incidence of HZ was comparedbetween cancer patients with and without RT. Age, comorbidities, cancer-related surgery andchemotherapy (CT), and cancer type were adjusted as confounders. Results: The risk of HZ in cancer patients was higher than that of non-cancer individuals(14.23 versus 8.34 per 1,000 person-years [PY], the adjusted hazard ratio [aHR]=1.38,p=0.044). In the cancer population, the incidence of HZ for the RT and non-RT cohorts was20.55 versus 10.23 per 1,000 PY, respectively (aHR=1.68, p=0.009). Age >50 years was anindependent factor for developing HZ. The 5-year actuarial incidence for patients receivingneither RT nor CT, RT alone, CT alone, and combined modalities was 5.4%, 6.9%, 3.7%,and 9.9%, respectively (p<0.001). In the RT cohort, the risk rose rapidly in the first year,becoming steady thereafter. Conclusion: This population-based study showed that gynecological cancer patientsreceiving RT combined with CT had the highest cumulative risk of HZ. Health careprofessionals should be aware of the potential toxicities.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
