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- 저자 : 박병준(Byoung Joon Park) (검색결과 5 건)
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박병준 ( Byoung Joon Park ),이광재 ( Kwang Jae Lee ),황재철 ( Jae Chul Hwang ),신성재 ( Sung Jae Sin ),정재연 ( Jae Yeon Chung ),조성원 ( Sung Won Cho ) 대한소화기학회 2008 대한소화기학회지 Vol.52 No.1
Background/Aims: Ulcerative colitis (UC) is a chronic inflammatory bowel disease with heterogeneous clinical features. Data on the disease course and prognosis of UC patients who have been regularly treated are lacking. We aimed to investigate relapse rates of UC in remission and factors related to relapse. Methods: We retrospectively analyzed clinical courses of 84 patients (43 males, median age 43 years, ranged 20-73 years) diagnosed as UC at Ajou University Hospital between January 1997 and December 2005 based on clinical, endoscopic and pathologic findings, and who were regularly followed for at least one year after the remission. Results: Study subjects consisted of 32 proctitis (38%), 21 left-sided colitis (25%), and 31 subtotal or total colitis (37%). Of 84 patients, relapse was observed in 52 patients (62%) during the follow-up period (ranged 1-9 years). The relapse rate was 24%, 41%, 51%, 65%, 71%, and 79% at 1 year, 2 years, 3 years, 4 years, 5 years and 6 years, respectively. Among sex, age, hemoglobin, ESR, and the extent of disease on admission, decrease of hemoglobin level was the only independent factor related to relapse (odds ratio=2.67, 95% CI (1.32-5.42), p<0.01). Conclusions: In Korea, relapse of UC in remission is not rare. Decrease of hemoglobin level is an independent risk factor related to its relapse, while the extent of disease is not. (Korean J Gastroenterol 2008;52:21-26)
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女性 經典의 재탄생 - 明末『閨範』과 ‘列女傳’의 파라텍스트에 대한 연구
최수경(Choi, Soo-kyung) 한국중어중문학회 2020 中語中文學 Vol.- No.82
This paper aims to explore how the new female canon of this period was made and what is the meaning by analyzing the "paratext" of several biographies of notable women in the late Ming, including Guifan(閨範, 1536-1618) of Lü Kun(呂坤, 1536-1618). Without considering the relativity of the times, he thoroughly established standards that were common in his time and were consistent with his values. So he is critical of the rift between the Han dynasty era and his own, or the new standards of conduct related to women, which are prevalent in some. However, his criticism is sometimes contradictory and divisive, probably because the language in the original is difficult to express the ideal woman he imagines. So he interpreted it as a philosophy of flexibility (quan權) when it was difficult to fully accept the ideals and ethics used in ancient times, which sometimes seem unreasonable. This is because it is impossible for commenting (shu述), that is, those who quote and comment on the original text, and who make their own remarks on its authority, completely deviate from the shadow of the original text. Besides, we need to pay attention to the difference between paratext and its meaning in Guifan"s different editions. In this paper, the illustrations contained in Baoshan tang(寶善堂) edition and Boru zhai(泊如齋) edition were compared. Baoshan tang illustrations abuse similar "basic background" and sometimes distort some of the story"s meaning. In contrast, the illustrations in the Boru zhai edition avoided provocative and cruel scenes and instead emphasized the character"s inner conflict and included many elements of landscape painting. This, too, seems to have been influenced by illustrations in other genres, such as plays and poems in contemporary time. Contemporary illustrated books have an "equalization" phenomenon that shares the characteristics of the time, regardless of genre or region.
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주파수 선택적 페이딩 채널에서 시간오차에 의한 비동기 OFDMA 상향 시스템의 성능 분석
박명희,고균병,박병준,이영일,홍대식,Park, Myong-Hee,Ko, Kyun-Byoung,Park, Byung-Joon,Lee, Young-Il,Hong, Dae-Sik 한국통신학회 2005 韓國通信學會論文誌 Vol.30 No.2a
본 논문에서는 비동기 사용자가 존재할 때 OFDMA 상향 시스템의 성능을 주파수 선택적 페이딩 채널 환경에 대해 분석한다. 이를 위해, 각 사용자의 시간오차를 기지국 기준시간에 대한 상대적인 시간오차로 표현하고 상대적인 시간오차에 의한 다중접속간섭을 유도한다. 다중접속간섭은 주파수 선택적 페이딩 채널의 WSSUS (Wide-sense stationary uncorrelated scattering) 채널 모델에 기반하여 유도된다. 성능 분석을 위하여 다중접속간섭을 포함한 평균 신호대 간섭잡음비를 유도하고 최종적으로 평균 심볼에러확률을 표현한다. 유도된 심볼에러확률은 컴퓨터 모의실험을 통하여 분석의 정확도를 확인한다. In orthogonal frequency-division multiple access (OFDMA) uplink environments, asynchronously received signals can cause multiple access interference (MAI). This paper focuses on the performance degradation due to the MAI over frequency-selective fading channels. We first introduce the timing misalignment, which is defined as the relative timing difference between asynchronous timing error of uplink user and reference time of the base station, and analytically derive the MAI using the power delay profile of wide-sense stationary uncorrelated scattering (WSSUS) channel model. Then, the effective signal-to-noise ratio (SNR) and the average symbol error probability (SEP) are derived. The proposed analytical results are verified through simulations with respect to the region of the timing misalignment and the number of asynchronous users.
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Glass/phenol 복합적층판의 저속충격 특성-온도의 영향
김후식(Hu Shik Kim),김재훈(Jae Hoon Kim),이영신(Young Sin Lee),한영욱(Young Uk Han),박병준(Byoung Joon Park),안병욱(Byoung Wook An) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
In this study. low velocity impact tests and compression-after-impact(CAI) tests have been used to evaluate the effect of temperature on the low velocity impact characteristics of phenol-matrix composites reinforced with woven glass-fabric. Drop weight(low velocity) impact causes three principle types of damage in laminates. namely matrix cracking, delamin-ation, and fiber breakage, which together can seriously degrade residual compressive strength in laminates. The distribution of impact damage for the various temperature. can be determined from ultrasonic C-scan images. and the shape of damage is approximately elliptical. The damage area increases with increasing temperature and impact energy. All these observation indicate reduced impact damage tolerance of the laminates at evaluted temperature.
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