Asymmetric Structures of a Squall-Line MCS over Taiwan with Significant Hydraulic Jumps

Yu‑Tai Pan,Ming‑Jen Yang 한국기상학회 2022 Asia-Pacific Journal of Atmospheric Sciences Vol.58 No.3

On 19 April 2019, a mature squall-line mesoscale convective system (MCS) with the characteristics of a leading convective line and trailing stratiform landed on Taiwan, resulting in strong gust wind and heavy rainfall. This squall-line MCS became asymmetric after landfall on Taiwan. Two sets of idealized numerical simulations (mountain heights and low-level vertical wind shear) using the Weather Research and Forecasting (WRF) model were conducted to examine the impacts of realistic Taiwan topography on a squall-line MCS. Results showed numerous similarities between the idealized simulations and real-case observations. The low-level Froude number which considered the terrain height ( Fmt) was calculated to examine the blocking effect of the Taiwan terrain, and the cold pool (determined by − 1.5 K isotherm) was found to be completely blocked by the 500-m height contour. The northeast-southwest orientation of the Snow Mountain Range (SMR), and the north–south orientation of the Central Mountain Range (CMR) led to the upwind side asymmetry. On the other hand, the lee-side asymmetry was associated with different intensities and occurrence locations of the hydraulic jump between the SMR and southern CMR, and the cold-pool Froude number ( Fcp) indicated the flow-regime transition from subcritical to supercritical.

韓 ·中同聲傳譯初探

宇仁浩 韓國外國語大學校 外國學綜合硏究센터 中國硏究所 1992 中國硏究 Vol.13 No.-

經濟, 禮貌原則與漢語會話敎學

宇仁浩 中國語文硏究會 2002 中國語文論叢 Vol.22 No.-

한국 학생들이 중국어 특히 구어를 통한 의사소통을 하는데 있어서 어법적인 오류 또는 어휘 사용상의 오류를 범하는것 외에도 모국어의 형태나 표현법ㅇ의 간섭으로 인하여 두 개의 내용이 포하묀 복잡한 문장을 만들거나 모국어 표현과의 직접적인 1대1 대응으로 상황에 적절치 못한 즉 상대방으로 하여금 불쾌함을 느끼게 하는 표현을 만들어내는 경우가 있다. 이는 대화의 순조로운 진행에 지장을 줄 수 있으며 의도한 대화의 목적을 이룰 수 없게 할 수도 있으므로 중국어회화 교육 내용에 적절히 반영되어야 할 것이다. 이를 위하여 본고에서는 담화의 경제성 원칙 및 예절성 원칙에 입각하여 대화속에 나타나는 표현 방식과 의미상의 오류를 분석하고 원칙의 적용문제를 다루어 보았다.

淺談漢語寫作敎學及連句成段的中要性

宇仁浩 중국어문연구회 2001 中國語文論叢 Vol.20 No.-

중국어 작문 교육에 있어서 단계설정과 단계간 연계성의 결여로 과도 단계라는 학습내용상의 공백이 존재할 수도 있다. 이는 주로 하나의 문단 또는 글로서의 문장을 구성하는데 있어서 연결방법이나 그 성분에 대한 이해 부족에서 비롯되는 것으로 문단구성하기 연습을 강화하여 중국어 글짓기에 있어서 보다 체계적인 학습이 이루어지도록 해야 할 것으로 보여지며, 과거에 비하여 학습자의 구성이 다양해진 강의실내 현실을 고려하여 통제작문의 형식과 소그룹별 집단 학습의 도입이 필요한 것으로 여겨진다. 이러한 필요성에 착안하여 이 논문에서는 單位組合寫作法(Terminal Unit Technique), 口頭寫作法(Oral Composition), 速寫作文法(Speedwriting Technique), 模擬寫作法(Imitation Method)등 기존의 방법론에 대한 현실을 감안한 개조를 통하여 대안을 제시하고자 하였다.

Computed tomographic analysis of maxillary sinus anatomy relevant to sinus lift procedures in edentulous ridges in Taiwanese patients

Yu, Shun-Jen,Lee, Yi-Hao,Lin, Ching-Ping,Wu, Aaron Yu-Jen Korean Academy of Periodontology 2019 Journal of Periodontal & Implant Science Vol.49 No.4

Purpose: To analyze the maxillary sinus anatomy over edentulous ridges in the bilateral posterior maxillary area in Taiwanese patients using cone-beam computed tomography (CBCT). Methods: In total, 101 anatomical sites from 61 patients, including 32 premolar and 69 molar regions, were analyzed using CBCT. Measurements were made of the width and height of edentulous ridges, the thickness of the lateral wall of the maxillary sinus, and the presence of a sinus septum and the posterior superior alveolar artery (PSAA). A statistical analysis of the measurements was performed, and correlations among the measurements were assessed. Results: The average ridge width was $10.26{\pm}3.16mm$, with a significantly greater ridge width in the second molar region than in the premolar region. The mean residual ridge height was $8.55{\pm}4.09mm$, and ridge height showed an opposite trend from ridge width for the premolar and molar regions. A sinus septum was present at 5.9% of the sites, and the PSAA was observed in 24.5%. The average thickness of the lateral wall of the maxillary sinus was $2.08{\pm}0.94mm$, with no significant difference between the tooth position and lateral wall thickness. Conclusions: This study presents the anatomical features of the maxillary sinus, which should be considered in sinus lift procedures for implant placement, in the Taiwanese population. The use of CBCT is recommended to avoid intraoperative complications.

Performance Prediction for Small Horizontal Axis Wind Turbine (HAWT) by Integrated Theory and Experimental Verifications

Yu-Jen Chen,Guo-Yuan Huang,Y. C. Shiah,Yi-Lun Tsai 한국정밀공학회 2020 International Journal of Precision Engineering and Vol.7 No.1

In this paper, a theoretical study on the performance of a small horizontal axis wind turbine (HAWT) is presented. This research aims to establish a reliable assessment platform for the small HAWT, upon which the design and dynamic analysis for turbine blades and axial-flux permanent magnet generator can be expediently carried out. The predicted results were verified by experiments undertaken in a wind tunnel as well as in outdoor environment. By adopting the model without involving any time-consuming computer simulations, various performance curves were obtained for different designs. Graphical user interface software implementing the proposed model has been developed to facilitate the performance assessment of the complete HAWT system. As a powerful and expedient tool, the developed software helps engineers effectively design a turbine system to be compatible with operation environment.

Biochemical Studies on the Anti-Carcinogenesis of Tea Polyphenols

Jen-Kun Lin,I-Ming Juan,Ying-Ling Chen,Yu-Chih Liang,Yu-Li Lin 한국식품과학회 1995 식품과학과 산업 Vol.28 No.4

Does serum vitamin D level alter ovarian response to ovarian stimulation in IVF/ICSI cycles?

( Jen-yu Wen ) 대한산부인과학회 2019 대한산부인과학회 학술대회 Vol.105 No.-

Introduction: Vitamin D is essential for proper functioning of the entire human body. There is some evidence of its association with female fertility but its impact on the effectiveness of IVF treatment has not been clarified. Our study is aimed to investigate of serum vitamin D level influence the outcome of ovarian stimulation in IVF/ICSI cycles. Materials, Settings and Methods: This retrospective data analysis included patients undergoing IVF/ICSI from May 2015 to June 2016 in our hospital. Vitamin D status was determined by measurement of serum 25-hydroxyvitamin D (25-(OH)D) level. All the patients underwent controlled ovarian stimulation either with antagonist protocol or with long agonist protocol depending on individual condition. The patients were divided into two groups according to the serum 25-(OH) D level < 30ng/mL or ≥ 30ng/mL. The ovarian stimulation outcomes were compared. Student t-test was used for statistical analyses. P value < 0.05 was considered statistically significant. Results: Totally 134 patients undergoing IVF/ICSI were included, in which 85% had vitamin D insufficiency. The age, BMI, AMH, basal FSH and basal estrogen level were similar in both groups. The days of ovarian stimulation, peak estrogen level after stimulation were comparable. There were no statistical differences in the number of mature oocytes retrieved between the two groups. Conclusion: The incidence of vitamin D insufficiency among infertile women in southern Taiwan is high. The status of vitamin D insufficiency did not alter the ovarian response to controlled ovarian stimulation in our study.

항암작용에 대한 차폴리페놀의 생화학적 연구

Jen Kun Lin,I Ming Juan,Ying Ling Chen,Yu Chih Liang,Yu Li Lin 한국식품과학회 1995 국제녹차심포지엄 Vol.1995 No.1

Risk factor analysis of coexisting endometrial carcinoma in patients with endometrial hyperplasia: a retrospective observational study of Taiwanese Gynecologic Oncology Group

Yu-Li Chen,Kung-Liahng Wang,Min-Yu Chen,Mu-Hsien Yu,Chen-Hsuan Wu,Yu-Min Ke,Yi-Jen Chen,Yin-Yi Chang,Keng-Fu Hsu,Ming-Shyen Yen 대한부인종양학회 2013 Journal of Gynecologic Oncology Vol.24 No.1

Objective: To evaluate the clinical outcome and parameters related to coexisting endometrial carcinoma in women with tissuediagnosed endometrial hyperplasia. Methods: Between January 1991 and December 2009, three hundred and eighty-six patients with the presumptive diagnosis of endometrial hyperplasia were retrieved. Among these, one hundred and twenty-five patients were identified as having coexisting endometrial carcinoma in hysterectomy specimens. The three hundred and eighty-six patients were divided into two groups: the hyperplasia-benign group (261 cases) and the hyperplasia-malignant group (125 cases). Several clinical parameters including age, menopausal status, history of abnormal uterine bleeding, obstetrical history, medical history of diabetes and hypertension, BMI, and preoperative pathologic results were investigated. Results: Age ≥53 (odds ratio [OR], 2.40; 95% confidence interval [CI], 1.26 to 4.57), menopausal status (OR, 2.07; 95% CI, 1.14to 3.76), diabetes history (OR, 7.33; 95% CI, 2.79 to 19.26), abnormal uterine bleeding (OR, 3.99; 95% CI, 1.22 to 13.02), atypical endometrial hyperplasia (OR, 7.38; 95% CI, 4.03 to 13.49), and body mass index ≥27 (OR, 3.24; 95% CI, 1.76 to 5.97) were independent risk factors for prediction of endometrial hyperplasia coexisting with endometrial carcinoma. The diagnostic efficacy of atypical endometrial hyperplasia to predict the endometrial hyperplasia coexisting with endometrial carcinoma was better than or similar to those of other independent factors and combinations of these factors. Conclusion: Coexisting malignancy should be considered when examining endometrial hyperplasia patients with the related risk factors, especially atypical endometrial hyperplasia.