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권기준,김용길 안성산업대학교 1998 論文集 Vol.30 No.-
In the seismic design of bridges equipped with seismic isolation system, the use of equivalent linear approach method makes it possible to take into account the nonlinearity inherent to seismic isolation system. In this paper, equivalent linear approach methd is developed and applied to aseismic analysis of base isolated bridge. Comparing the response spectrum analyses of bridges equipped with common pot bearing and bridges equipped with seismic isolation system, the effect of seismic isolation systems appears clearly and such equipment strengthen bridges seismic design and their seismic performance.
뇌자도 측정을 위한 저잡음 Nb SQUID 센서의 설계 및 제작
이용호,권혁찬,김진목,이상길,임청무,박용기,박종철 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
We report on the design, fabrication and performances of a low-noise Nb SQUID sensor for neuromagnetic measurements. The main features of the developed sensor are i) large flux-to-voltage transfer, making the SQUID readout electronics simple, and ii) use of the integrated planar pickup coil to eliminate the environmental magnetic field noises. The magnetic field noise of the developed SQUID sensor is below 5 fT/√Hz at 100 Hz, which is low enough to be used in neuromagnetic measurements.
김은희,김철규,이순교,김순덕,이혜옥,권정순,이경미,이민미,심순미,유용만,신종식,강은희,이상일,김병식,오성태,육정환,박수길 한국의료QA학회 2003 한국의료질향상학회지 Vol.10 No.2
Background : Gastric cancer is the most common malignant tumor in Korea. surgical operation is one of the major treatment modalities for gastric cancer patients. Therefore, gastrectomy is one of the most common procedures in General Surgery. There were variation in length of hospital stay and medical treatment for gastrectomy between three surgeons at Asan Medical Center. Clinical pathways have received considerable attention as a tool for recucing the medical practice variation, increasing the efficiency of care process, and improving the quality of care. The aim of this study was to evaluate the effect of a clinical pathway for gastrectomy in gastric cancer patients. Methods : The clinical pathway for gastrectomy was developed and implemented by a multidisciplinary group in Asan Medical Center. A computerized clinical pathway program was developed and revised after a pilot test. A total of 145 patients underwent gastrectomy by three surgeons at Asan Medical Center. We compared the length of hospital stay, patient satisfaction, and unplanned readmission rate between the pre-pathway group(n=67) and the post-pathway group(n=78). We also investigated the degree of satisfaction among the physicians and nurses who were main end-users of the clinical pathway. Results : The clinical pathway was applied to all target patients. The average length of hospital stay was shortened from 12.7days to 10.6days(p<0.01). The degree of patient satisfaction with the care process changed from 90.3% to 89.2% after the implementation of the clinical pathway, but the difference was of satistically significant(p=0.761). Unplanned readmission rate was 2.9% in the pre-pathway group. More than 90% of physicians and nurses answered that the clinical pathway had been a useful tool in their medical practice. Conclusions : The findings of the study demonstrated that implementation of the clinical pathway for gastrectomy produced substantial reduction in the length of hospital stay while improving the quality of patient outcomes. The computerized clinical pathway program can be used as one of the powerful patient management tools for reducing the practice variations and increasing the efficiency of care process in Korea hospital settings.
( Yong Hwan Kwon ),( Hyun Soo Chung ),( Byung Seok Bae ),( Seok Min Hong ),( Da Hyun Jung ),( Jun Chul Park ),( Sung Kwan Shin ),( Sang Kil Lee ),( Yong Chan Lee ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: Little is known regarding the relationship between diagnostic accuracy of endoscopic ultrasound (EUS) and peritumoral atrophy and intestinal metaplasia (IM). We aimed to evaluate the contribution of peritumoral atrophy and IM to EUS accuracy. Methods: A total of 349 patients with early gastric cancer (EGC) who underwent surgical resection (69.9%, 244/349) or endoscopic resection (30.1%, 105/349) with curative intent at Severance Hospital, Yonsei University, Seoul, Korea from January to December, 2013 were included. Preoperative EUS staging was compared with the postoperative histopathological outcomes. Peritumoral atrophy and IM were assessed endoscopically by a single experienced endoscopist blinded to the pathologic results. Diagnostic accuracy and clinicopathologic factors affecting the diagnostic accuracy of EUS were also investigated. Results: The overall accuracy of EUS was 62.8% (219/349) for T staging, 81.6% (146/179) for T1a, and 51.8% (73/141) for T1b. Overdiagnosis and underdiagnosis were 27.8% (97/349) and 9.5% (33/349), respectively. Peritumoral atrophy and IM were observedin 50.7% (177/349) and 46.4% (162/349). In univariate analysis, the accuracy rate was negatively associated with endoscopic grade of peritumoral atrophy and IM (p<0.05). In multivariate analysis, presence of ulcer, tumor size and endoscopic grade of peritumoral atrophy and IM remained signifi cant (p<0.05, p<0.001 and p<0.05). Conclusions: In this study, the diagnostic accuracy of EUS for T1b EGC was signifi - cantly lower than of T1a EGC. Along with tumor size and presence of ulcer, endoscopic grade of atrophy and IM were associated with low accuracy of EUS. When T1b cancer was suspected on EUS, these factors should be addressed in the treatment planning.
A New Waxy Rice Cultivar with Multiple Disease Resistance and High Yield, "Boseogchal"
Ki Yong Ha,Ki Young Kim,Jong Cheol Ko,Man Gee Baek,Jae Kil Lee,Jae Kwon Ko,Bo Kyeong Kim,Jeong Kwon Nam,Jin Il Choung,So Hyeon Baek,Yeong Doo Kim,Chung Kon Kim,Kwang Yong Jung 한국육종학회 2006 한국육종학회지 Vol.38 No.4
Boseogchal is a newjaponica rice cultivar developed from the three-way cross ofHwayoung, Tamjin and Sinseonchalat Honam Agricultural Research Institute (HARI), RDA, in 2004. It is a waxy rice with about 117 days of growth duration fromtransplanting to har