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RISS 인기검색어
- 검색키워드
- 저자 : Sunghoon Baik (검색결과 2 건)
- 무료
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- 유료
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Lidar Measurement of a Full Raman Spectrum of Water by Using a Multichannel Detector
김덕현,Sunghoon Baik,Hyungki Cha,Yonggi Kim,Imkang Song 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.54 No.1
To measure the phase change of water molecules, we designed a new multi-channel meteorological Raman lidar system that can measure a full spectrum of the ro-vibrational Raman signal for water vapor and the vibrational Raman signal for liquid water simultaneously. To accomplish this, we have designed a receiving system by using a double grating and a holographic notch filter so that the total blocking ratio is approximately 10^-14. Using this system, we have measured a full spectrum of the vibration Raman signal for both liquid water and water vapor by using a multi-channel PMT near a cloud and in a clear atmosphere. From the preliminary experimental results, we can distinguish between cloud droplets and water vapor Raman signals. Using these Raman signals, we can also elucidate a difference between both hydrogen-bonded liquid water and water vapor near clouds and under clear conditions.
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( Miseon Kim ),( Jeong-yeol Park ),( E Sun Baik ),( Hee Seung Kim ),( Sunghoon Kim ),( Dong Hoon Suh ) 대한산부인과학회 2016 대한산부인과학회 학술대회 Vol.102 No.-
목적: To evaluate the survival impact of low anterior resection (LAR) in patients with epithelial ovarian cancer (EOC) grossly confined to pelvis. 방법: A total of 397 patients who underwent primary staging operation for the treatment of stage II-IIIA EOC was retrospectively reviewed: 116 (29.2%) IIA, 212 (53.4%) IIB, 30 (7.6%) IIIA1, and 39 (9.8%) IIIA2. Patients who had grossly enlarged retroperitoneal lymph nodes positive for metastatic carcinoma were excluded. Total study population comprised three groups according to the presence of gross tumor on intrapelvic rectosigmoid colon and bowel resection: no-tumor/non-LAR group (n=305, 76.8%), tumor/non-LAR group (n=68, 17.1%), and tumor/LAR group (n=24, 6.1%). Survival rates were compared between the groups. 결과: Median follow-up was 36 months (range 0-260 months). Five-year progression-free survival (PFS) of stage IIA, IIB, IIIA1, and IIIA2 were 65.1%, 61.0%, 50.4%, and 45.5%, respectively. There was no survival difference between no-tumor (n=305) and tumor (n=92) groups. All patients of tumor/non-LAR group underwent tumorectomy and/or electrocoagulation. Survival difference was not observed between no-tumor/non-LAR group and tumor/non-LAR group (5-yr PFS, 60.4% vs.58.3%; p=0.530 and 5-yr overall survival [OS], 81.2% vs. 88.0%; p=0.985) even though complete cytoreduction rate was significantly higher in no-tumor/non-LAR group than tumor/non-LAR group (p<0.001). There was no significant survival difference between tumor/LAR and tumor/non-LAR groups (5-yr PFS, 62.5% vs. 58.3%; p=0.787 and 5-yr OS, 63.5% vs. 88.0%; p=0.078). Age, histologic type, optimal cytoreduction rate (residual tumor size≤1cm), and cycle number of adjuvant chemotherapy were not different between the groups of comparisons. Postoperative ileus ≥grade 2 was more frequently observed in LAR group than non-LAR group (13.6% vs. 3.2%; p=0.013). 결론: Survival benefit of LAR does not appear to be significant in the patients with grossly pelvis-confined EOC where post-tumorectomy site on intrapelvic rectosigmoid colon might not be considered as residual tumor.
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