여성 단순 급성 신우신염 환자에서 당뇨 및 당화혈색소가 치료 경과에 미치는 영향

배민호,박창후,조영삼,주관중,권칠훈,박흥재 대한요로생식기감염학회 2015 Urogenital Tract Infection Vol.10 No.1

Purpose: We investigated potential difference in the clinical features of hospitalized female acute pyelonephritis (APN) patients with and without diabetes mellitus (DM). The additional purpose of the study was to determine whether HbA1c has a role in predicting clinical outcome in terms of morbidity compared with those considered to have normal glycemic control in female APN patients with DM.Materials and Methods: Among the female patients who received inpatients care due to APN from January 2011 to December 2013, 282 patients (86 with DM and 196 without DM) were selected and their medical records were analyzed. Laboratory results (white blood cell, blood urea nitrogen, serum creatinine, fasting plasma glucose, HbA1c) were dichotomized. Primary outcomes for comparison between the groups of patients with or without DM were early clinical response rate and length of in-hospital stay. Subgroup analysis was also performed in DM patients according to HbA1c status (<6.5%, ≥6.5%).Results: In multivariate logistic regression analysis, DM was not found to show independent association with poor early clinical response or longer hospital stay. HbA1c was the common risk factor of poor early clinical response (odds ratio [OR] 4.88, 95% confidence interval [CI] 1.61-14.8) and longer hospital stay (OR 4.20 95% CI 1.52-11.60) in APN patients with DM.Conclusions: Strict glucose control may be more important prognostic factor than presence or absence of DM in APN patients. As a marker of prolonged hospitalization and poor early clinical response, HbA1c can complement the present clinical and laboratory parameters used as guide in the proper treatment of DM patients with APN.

窒化薄膜의 絶緣破壤現象에 關한 硏究

金明寧,裵民鎬 大田工業大學 1990 한밭대학교 논문집 Vol.7 No.1

요소 기술 및 사용자 정책이 건물에너지 절감에 미치는 기여도 분석을 위한 기초연구

배민호(Minho Pae),이은주(Eunju Lee),박은미(Eunmi Park),김동호(Dongho Kim),김재민(Jaemin Kim),조수(Soo Jo) 한국건축친환경설비학회 2008 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-

In Korea, for greenhouse gas reduction, it was indicated that the field of Building has the highest potentiality. So there's a great need to investigate the policy for effective carbon dioxide reduction by reducing building energy consumption. This study has made a research of some techniques for building energy reduction and user self reduction methods. It databased the result of how each techniques has worked out. Evaluation not only of single effect of a certain technique but also of complex effects of compounded techniques should be made. And this should be further backed up by establishing solid evaluation methods on technical effects and economical feasibility. There's been a few studies on the effect of user self reduction methods in korea yet. But some studies made in european countries showed the cost-effectiveness which is high and meaningful enough to deserve attention. To achieve effective building energy reduction, investment for contents and systems not only on devices and system, but also on end-users part should be actively made.

이종의 다중 가속기 환경에서 큐 기반 인공지능 추론 시스템 설계 및 구축

배민호(Minho Bae),윤성재(JaeYoon Sung),전승협(SeungHyub Jeon),이성희(Seonghee Lee) 한국정보과학회 2023 한국정보과학회 학술발표논문집 Vol.2023 No.12

군 통신환경을 효과적으로 활용하는 하이브리드 메시징 시스템 구조와 XML Element 기반의 필터링 기법

배민호(Minho Bae),민경준(Kyoungjun Min),박규동(Gyudong Park),전호철(Hocheol Jeon),오상윤(Sangyoon Oh) 한국정보과학회 2019 정보과학회논문지 Vol.46 No.10

전술 환경에서 자주 발생하는 통신 대역폭 제한을 극복하기 위해서는 메시징 미들웨어 구조와 함께 새로운 메시지 포멧 및 메시지 유통 기법 등 통합적 관점에서의 문제 해결 방안이 필요하다. 본 논문에서는 출판-구독 기반의 전술 네트워킹 미들웨어에서 전술 통신 환경이 가지는 제한적 특성으로 인해 발생하는 문제를 극복하기 위해, 출판-구독의 구현 아키텍처로서 P2P와 브로커를 결합한 하이브리드 메시징 시스템 구조를 제안하고, 또한 유통되는 정보를 통제-조절하기 위한 방안으로 XML Element 기반 새로운 필터링 기법을 제안한다. 본 제안의 타당성을 검증하기 위해 오픈소스 시스템들을 기반으로 하이브리드 메시징 시스템의 프로토타이핑과 성능실험을 진행하였으며, 테스트 데이터에 대해 기존 XML 대비 평균적으로 34% 정도 감소된 메시지 사이즈와 EXI 대비 평균적으로 7.1배 정도 빨라진 인코딩 프로세싱 시간 및 최대 21.7배의 빨라진 메시지 필터링 속도를 확인하였다. To overcome limited network bandwidth conditions which occur frequently in tactical networking environments, an integrated solution that includes architecture, a message format, and a messaging scheme is needed. In this paper, we propose a publish-subscribe based hybrid messaging system architecture and a novel messaging model with an XML element level filtering scheme and data representation to overcome limited networking conditions in tactical environments. Herein, we present the prototype messaging system based on our proposed hybrid architecture. Evaluations of our proposed scheme were conducted to prove its effectiveness. The empirical experimental results showed that our scheme enhanced the message size performance by an average of 34% compared to conventional XML and message encoding performance was also enhanced an average of 7.1 times compared to EXI. The prototype system achieved a 21.7-fold maximum improvement in filtering performance processing time.

공공 하,폐수처리시설에서 사용하는 응집제와 생태독성과의 상관관계

배민호 ( Min Ho Bae ),박정구 ( Joung Ku Park ) 한국물환경학회 ( 구 한국수질보전학회 ) 2012 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2012 No.-

블록 중심 그래프 처리 시스템의 부하 분산을 위한 동적 블록 재배치 기법

김예원,배민호,오상윤,Kim, Yewon,Bae, Minho,Oh, Sangyoon 한국정보처리학회 2018 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.7 No.5

최근 웹, 소셜 네트워크 서비스, 모바일, 사물인터넷 등의 ICT 기술의 발전으로 인해 처리 및 분석이 필요한 그래프 데이터의 규모가 급속하게 증가하였다. 이러한 대규모 그래프 데이터는 단일 기기에서의 처리가 어렵기 때문에 여러 기기에 나누어 분산/병렬 처리하는 것이 필요하다. 기존 그래프 처리 알고리즘들은 단일 메모리 환경을 기반으로 연구되어 분산/병렬 처리환경에 적용되기 힘들다. 이에 대규모 그래프의 보다 효과적인 분산/병렬 처리를 위해 정점 중심 방식의 그래프 처리 시스템들과, 정점 중심 방식의 단점을 보완한 블록 중심 방식의 그래프 처리 시스템들이 등장하였다. 이러한 시스템들은 초기 그래프 분할 상태가 전체 처리 성능에 상당한 영향을 미친다. 한 번에 최적의 상태로 그래프를 분할하는 것은 매우 어려운 문제이므로, 그래프 처리 시간에 점진적으로 그래프 분할 상태를 개선하는 여러 로드 밸런싱 기법들이 연구되었다. 그러나 기존 기법들은 대부분 정점 중심 그래프 처리 시스템을 대상으로 하여 블록 중심 그래프 처리 시스템에 적용이 어렵다. 본 논문에서는 블록 중심 그래프 처리 시스템을 대상으로 적용 가능한 로드 밸런싱 기법을 제안한다. 제안 기법은 동적으로 블록을 재배치하여 점진적으로 그래프 분할 상태를 개선시키며, 해를 찾아나가는 과정에서 지역 최적해를 벗어나기 위한 블록 분할 전략을 함께 제시한다. The scale of graph data has been increased rapidly because of the growth of mobile Internet applications and the proliferation of social network services. This brings upon the imminent necessity of efficient distributed and parallel graph processing approach since the size of these large-scale graphs are easily over a capacity of a single machine. Currently, there are two popular parallel graph processing approaches, vertex-centric graph processing and block centric processing. While a vertex-centric graph processing approach can easily be applied to the parallel processing system, a block-centric graph processing approach is proposed to compensate the drawbacks of the vertex-centric approach. In these systems, the initial quality of graph partition affects to the overall performance significantly. However, it is a very difficult problem to divide the graph into optimal states at the initial phase. Thus, several dynamic load balancing techniques have been studied that suggest the progressive partitioning during the graph processing time. In this paper, we present a load balancing algorithms for the block-centric graph processing approach where most of dynamic load balancing techniques are focused on vertex-centric systems. Our proposed algorithm focus on an improvement of the graph partition quality by dynamically reassigning blocks in runtime, and suggests block split strategy for escaping local optimum solution.

정보윤리측면에서 본 실명제에 관한 연구

김영인,배민호 동덕여자대학교 2000 정보과학연구 Vol.4 No.-

Wilms’ Tumor in a Horseshoe Kidney

이상훈,배민호,최성호,이진석,조영삼,주관중,권칠훈,박흥재 대한비뇨의학회 2012 Investigative and Clinical Urology Vol.53 No.8

The incidence of horseshoe kidney is about 1 in 400 cases. The presence of Wilms’ tumor with a horseshoe kidney is unusual, and the occurrence of Wilms’ tumor in a horseshoe kidney is estimated at 0.4 to 0.9% of all Wilms’ tumors. We report the case of a 5-year-old boy who presented with a stage IV Wilms’ tumor in a horseshoe kidney. The patient was treated with preoperative chemotherapy followed by surgical resection and adjuvant chemotherapy. This case illustrates the role of preoperative chemotherapy for preserving renal function and aims to highlight the multimodality treatment of Wilms’ tumor.

Tumor Establishment Features of Orthotopic Murine Bladder Cancer Models

이진석,배민호,최성호,이상훈,조영삼,박흥재,권칠훈,주관중 대한비뇨의학회 2012 Investigative and Clinical Urology Vol.53 No.6

Purpose: Animal tumor models are important for the evaluation of novel therapeutic modalities. Since the initial report of an orthotopic bladder tumor model, several modifications have been proposed to improve the tumor take rate. Here we compared the HCl-pretreated and electrocauterization-pretreated orthotopic murine bladder tumor models. Materials and Methods: MBT-2 murine bladder cancer cells were transurethrally implanted in the bladder of syngeneic C3H/He mice. The mice were divided into three groups according to pretreatment methods (electrocautery, HCl, and control group) and were subjected to pretreatment before instillation of MBT-2 tumor cells into the bladder. Mice were sacrificed on day 21, and bladders were harvested, weighed, and examined histopathologically. Results: The tumor take rate of the control, electrocautery, and HCl groups was 0%, 54%, and 100%, respectively. The tumor take rate of the HCl group was significantly higher than that of the control group (p<0.01) and the electrocautery group (p=0.01). Pathologic reports revealed that all established bladder tumors were high-grade papillary urothelial carcinomas. Conclusions: The HCl pretreatment model was a preferable murine bladder tumor model for evaluating further therapeutic interventions. Purpose: Animal tumor models are important for the evaluation of novel therapeutic modalities. Since the initial report of an orthotopic bladder tumor model, several modifications have been proposed to improve the tumor take rate. Here we compared the HCl-pretreated and electrocauterization-pretreated orthotopic murine bladder tumor models. Materials and Methods: MBT-2 murine bladder cancer cells were transurethrally implanted in the bladder of syngeneic C3H/He mice. The mice were divided into three groups according to pretreatment methods (electrocautery, HCl, and control group) and were subjected to pretreatment before instillation of MBT-2 tumor cells into the bladder. Mice were sacrificed on day 21, and bladders were harvested, weighed, and examined histopathologically. Results: The tumor take rate of the control, electrocautery, and HCl groups was 0%, 54%, and 100%, respectively. The tumor take rate of the HCl group was significantly higher than that of the control group (p<0.01) and the electrocautery group (p=0.01). Pathologic reports revealed that all established bladder tumors were high-grade papillary urothelial carcinomas. Conclusions: The HCl pretreatment model was a preferable murine bladder tumor model for evaluating further therapeutic interventions.