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정호중,김기찬,엄문섭 고신대학교의과대학 2006 고신대학교 의과대학 학술지 Vol.21 No.2
Primary lymphedema tarda is considered to be a congenital disease with delayed manifestations. The cause is unknown; an autoimmune destruction of lymphatic channels can be hypothesized. We report a case of isolated lymphedema of the left lower extremity in a 38-year-old male. The diagnosis of lymphedema was confirmed by lymphoscintigraphy and appropriate diagnostic studies were done to rule out other known causes of limb edema. We report a rare case of primary lymphedema tarda of the left lower extremity.
Eom, Moon-Ho,Kim, Boeun,Jang, Hong,Lee, Sang-Hyun,Kim, Woohyun,Shin, Yong-An,Lee, Jay H. American Chemical Society 2015 ENERGY AND FUELS Vol.29 No.11
<P>A dynamic model for a fermentation process equipped with an ex situ butanol recovery (termed “ESBR” hereafter) system is proposed for continuous production of biobutanol. Since the proposed ESBR system integrates a fermenter with a stirred-tank-type adsorption column, the dynamic model includes kinetic models for both the fermentation (the Monod/Luedeking-Piret model) and the adsorption (the extended Langmuir model). Parameters in the kinetic models are initially determined using data from batch and fed-batch fermentation experiments with in situ butanol recovery (ISBR). The initially developed model is then used to find a feasible operating condition for an experimental ESBR system, and its parameter values are further tuned using experimental data from the proposed ESBR system for accurate predictions in the butanol and glucose concentration range seen in the ESBR operation. The approach to improving the model accuracy consists of two steps: (1) identifying the critical parameters by performing a sensitivity analysis and (2) re-estimating the selected parameters using data obtained during cyclic operation of the proposed ESBR system. Accordingly, the developed model based on the kinetics for both fermentation and adsorption can describe and predict the behavior of the proposed ESBR system. Thus, the proposed systematic approach provides a reliable platform for the optimal scale-up design and control studies of the ESBR system.</P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ef5b01031'>ACS Electronic Supporting Info</A></P>
웨이블릿 부밴드의 상호 정보량을 이용한 세일리언시 검출
문상환(Sang Whan Moon),이호상(Ho Sang Lee),문용호(Yong Ho Moon),엄일규(Il Kyu Eom) 대한전자공학회 2017 전자공학회논문지 Vol.54 No.6
본 논문에서는 웨이블릿 부밴드의 상호 정보량을 이용한 새로운 세일리언시 검출 방법을 제시한다. 본 논문의 방법은 웨이블릿 고주파 계수에 대한 승수와 가우시안 블러링을 이용하여 중간 세일리언시 지도를 형성한다. 웨이블릿 방향에 따른 세 개의 중간 세일리언시 지도를 방향별로 결합한 후 최소 엔트로피를 가지는 주 방향성 성분을 찾는다. 최소 엔트로피를 가지는 부밴드를 중심으로 각 부밴드의 상호 정보량을 구하고, 이를 이용한 가중치를 계산하고, Minkowski 합을 이용하여 최종 세일리언시를 검출한다. CAT2000 및 ECSSD 데이터베이스 대한 실험 결과, 본 논문의 방법은 기존 방법과 비교하여 적은 계산시간으로 ROC 및 AUC 관점에서 우수한 검출 결과를 보였다. In this paper, we present a new saliency detection algorithm using the mutual information of wavelet subbands. Our method constructs an intermediate saliency map using the power operation and Gaussian blurring for high-frequency wavelet coefficients. After combining three intermediate saliency maps according to the direction of wavelet subband, we find the main directional components using entropy measure. The amount of mutual information of each subband is obtained centering on the subband having the minimum entropy The final saliency map is detected using Minkowski sum based on weights calculated by the mutual information. As a result of the experiment on CAT2000 and ECSSD databases, our method showed good detection results in terms of ROC and AUC with few computation times compared with the conventional methods.