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Jaekyoung Ahn,Do-seob Ahn,Bon-Jun Ku 통신위성ㆍ우주산업연구회 2008 한국위성정보통신학회논문지 Vol.3 No.2
Traditionally R&D evaluation has been performed by experts who can understand the contents of the study area very well. Recently extensive application of quantitative evaluation methods have been attempted for introducing the administrative management system that poses greater importance on records and results. More objective reviews on the R&D outcomes are called for gaining public supports. In this paper a bibliometrical analysis is to be performed to evaluate satellite communication and broadcasting public R&D outcomes for last 7 years. Data envelopment analysis method is selected for evaluating the efficiencies of multiple outputs (papers, patents, royalties, technology transfers) where multiple inputs (number of researchers and R&D expenses) are given. R&D ou tcomes from 22 research institutes are being compared and satellite communication and broadcasting R&D efforts turn out to be highly efficient.
Preoperative chemoradiotherapy followed by local excision in clinical T2N0 rectal cancer
Young Seob Shin,Yong sik Yoon,Seok Byung Lim,Chang Sik Yu,Tae Won Kim,Heung Moon Chang,Jin hong Park,Seung Do Ahn,Sang Wook Lee,Eun Kyung Choi,Jin Cheon Kim,Jong Hoon Kim 대한방사선종양학회 2016 Radiation Oncology Journal Vol.34 No.3
Purpose: To investigate whether preoperative chemoradiotherapy (PCRT) followed by local excision (LE) is feasible approach in clinical T2N0 rectal cancer patients. Materials and Methods: Patients who received PCRT and LE because of clinical T2 rectal cancer within 7 cm from anal verge between January 2006 and June 2014 were retrospectively analyzed. LE was performed in case of a good clinical response after PCRT. Patients’ characteristics, treatment record, tumor recurrence, and treatment-related complications were reviewed at a median follow-up of 49 months. Results: All patients received transanal excision or transanal minimally invasive surgery. Of 34 patients, 19 patients (55.9%) presented pathologic complete response (pCR). The 3-year local recurrence-free survival and disease free-survival were 100.0% and 97.1%, respectively. There was no recurrence among the patients with pCR. Except for 1 case of grade 4 enterovesical fistula, all other late complications were mild and self-limiting. Conclusion: PCRT followed by an LE might be feasible as an alternative to total mesorectal excision in good responders with clinical T2N0 distal rectal cancer.
안석영 ( Ahn Seok-young ),도영찬 ( Do Young-chan ),강건욱 ( Kang Geon-uk ),이준섭 ( Lee Jun-seob ) 한국구조물진단유지관리공학회 2021 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.25 No.2
하자심사·분쟁조정위원회는 공동주택에서 발생하는 하자로 인한 입주자와 사업주체간의 분쟁을 신속·공정하게 해결함으로써 국민의 삶의 질을 높이고 있다. 하자심사·분쟁조정위원회의 하자여부 판정의 근간이 되는「공동주택 하자의 조사, 보수비용 산정 및 하자판정기준」은 하자심사·분쟁조정위원회에서 공동주택의 내력구조부별 및 시설공사별로 발생하는 하자에 관한 분쟁을 신속하고 공정하게 심사 및 조정하기 위하여 시행되었다. 2020년 11월 30일에 판정기준이 개정되며 하자유형이 현행 하자판정기준에서 12개 항목을 변경하고, 13개 항목을 신설하여 하자 항목이 31개에서 44개가 되어 하자 인정범위 확대와 명확한 판단 기준이 마련되었다. 따라서, 본 연구에서는 기존 사항 중 13개의 하자유형 주요 신설사항을 세부화하여 소개하여 하자 여부가 불명확했던 도배, 가구, 가전기기 등의 사항에 대한 판단기준으로써 하자에 대한 이해도를 높여 양당사자 간 하자여부에 대한 분쟁 저감에 기여하고자 한다.
Preoperative chemoradiotherapy followed by local excision in clinical T2N0 rectal cancer
Shin, Young Seob,Yoon, Yong sik,Lim, Seok-Byung,Yu, Chang Sik,Kim, Tae Won,Chang, Heung Moon,Park, Jin-hong,Ahn, Seung Do,Lee, Sang-Wook,Choi, Eun Kyung,Kim, Jin Cheon,Kim, Jong Hoon The Korean Society for Radiation Oncology 2016 Radiation Oncology Journal Vol.34 No.3
Purpose: To investigate whether preoperative chemoradiotherapy (PCRT) followed by local excision (LE) is feasible approach in clinical T2N0 rectal cancer patients. Materials and Methods: Patients who received PCRT and LE because of clinical T2 rectal cancer within 7 cm from anal verge between January 2006 and June 2014 were retrospectively analyzed. LE was performed in case of a good clinical response after PCRT. Patients' characteristics, treatment record, tumor recurrence, and treatment-related complications were reviewed at a median follow-up of 49 months. Results: All patients received transanal excision or transanal minimally invasive surgery. Of 34 patients, 19 patients (55.9%) presented pathologic complete response (pCR). The 3-year local recurrence-free survival and disease free-survival were 100.0% and 97.1%, respectively. There was no recurrence among the patients with pCR. Except for 1 case of grade 4 enterovesical fistula, all other late complications were mild and self-limiting. Conclusion: PCRT followed by an LE might be feasible as an alternative to total mesorectal excision in good responders with clinical T2N0 distal rectal cancer.
Ku, Bon-Jun,Ahn, Do-Seob,Baek, Dong-Cheol,Park, Kwang-Ryang,Lee, Seong-Pal Electronics and Telecommunications Research Instit 2000 ETRI Journal Vol.22 No.1
Wireless communication systems using airship have been proposed in worldwide. The airship will be located at the stratosphere about $20{\sim}23\;km$ above the sea level. The position of airship will vary within the station keeping range with time due to the drag of the wind in the stratosphere. When the earth station antenna has a high gain without the tracking function, the antenna performance may be degraded by a small variation of the airship. This means that variation of airship location could result in serious degradation of the system performance. In this paper, degradation in earth station's Equivalent Isotropic Radiated Power (EIRP) and Gain to noise Temperature ratio (G/T) due to the stratospheric platform movements has been derived by calculating the deviation angle of the main beam directions between the earth station and the platform antenna. In this case, the antenna of the earth station has been assumed circular and/or patch array antennas.