이기종 환경에서의 벤치마크 성능 분석

문현주(Hyun-ju Moon),전중남(Joong-Nam Jeon),김석일(Sukil Kim) 한국정보과학회 1996 한국정보과학회 학술발표논문집 Vol.23 No.2B

이기종 시스템은 상이한 연산 특징을 지닌 다수의 머신을 네트워크로 연결하여 빠른 계산을 가능하도록 한다. 따라서 단일 기종 시스템과는 달리, 이기종 시스템의 성능을 측정하기 위해서는 프로그램별로 코드의 특성을 분석하고 알맞은 머신을 선정해야하는 절차가 필요하며, 이 과정에서 머신간의 통신에 따른 비용을 감안하여야 한다. 본 논문에서는 벡터 컴퓨터와 MPP 컴퓨터로 구성된 이기종 환경에서 통신 비용이 시스템의 성능에 미치는 영향을 연구하였다. 본 연구에서는 SLALOM 벤치마크 프로그램을 사용하였으며, SLALOM의 모듈별 프로파일링을 통하여 이기종 연산 방안을 수립하고 통신 오버헤드를 문제 크기에 관한 함수로 표현하여 이기종 연산에 의한 성능을 예측하였다. 실험 결과, 사용할 MPP의 노드 수가 이기종 연산에 미치는 효과가 큰 것으로 판명되었으며, 프로그램에 따라 사용할 노드 수를 결정할 수 있음을 확인하였다.

신장 및 위장관 침범을 보인 Churg - Strauss 증후군 1 예

문현주(Hyun Ju Moon),이지범(Jee Bum Lee),김성진(Seong Jin Kim),이승철(Seung Chul Lee),원영호(Young Ho Won) 대한피부과학회 2002 대한피부과학회지 Vol.40 No.2

Churg-Strauss syndrome is a systemic necrotizing vasculitis occurring in patients with asthma or allergic rhinitis, and characterized by eosinophilic infiltration of various tissues and peripheral eosinophilia. A 28-year-old male was admitted due to painful purpuric papules and patches on both lower legs and both hands with dysesthesia and weakness for 4 days. He had been well until 8 months earlier when asthma developed. Abnormal laboratory findings including peripheral blood eosinophilia, p-ANCA(+), elevated BUN and creatinine, hematuria, proteinuria, and stool occult blood were observed. Parenchymal renal disease of both kidneys was confirmed by abdominal sonogram. Marked muscular atrophy in the first web space of left hand dorsum and difficulty in dorsiflexion of both feet had developed, suggesting mononeuritis multiflex in bilateral peroneal and tibial nerves, left ulnar and radial nerves.

기업특성에 따른 회계이익의 질 - 코스닥기업 대상

문현주 ( Hyun-ju Moon ) 한국중소기업학회 2020 중소기업연구 Vol.42 No.4

This study, targeting KOSDAQ-listed companies, examined the relationship between variability of accruals and corporate characteristics. First, the analysis results show that executives of companies with high debt ratios are more likely to violate debt contracts, so there is a strong temptation to use discretionary accrual items. Second, for companies with large volatility in operating cash flows, Executives of these companies are strongly inclined to utilize accruals for the purpose of abuse of discretion. Third, the larger the company, the more sensitive it is to political costs, so it is less tempted to use the accruals item than a smaller company. Fourth, the corporate age is thought to be the maturity of the company, Executives of such companies have little room to use accruals to abuse their discretion. Fifth, in the case of profit dummy variables, the companies reporting losses have more temporary accrual items than those reporting profits, so this increases the uncertainty in their accounting information than the latter. Sixth, for those companies that are indicated as inappropriate as a result of audit, the more likely their executives are to use the accrual items, and the lower the quality of their accounting profits is. Lastly, Companies audited by 4 Big domestic accounting firms have less discretionary accrual fluctuations than companies audited by non-big 4 accounting firms. Thus, it was found that the accrual amount allows the discretion of corporate executives differently according to the characteristics of the company.

통신의 영향을 줄이기 위한 이기종 태스크 스케쥴링 기법

문현주(Moon Hyun Ju),전중남(Jeon Joong Nam),김석일(Kim Suk II),황인재(Hwang In Jae) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.10

This paper proposes Heterogeneous Duplication Scheduling(HDS) which alleviates excessive communication overhead between tasks for distributed computing on a heterogeneous distributed environment. HDS is to allocate a copy of a task that causes excessive data communication with a message-receiving task to the same machine wherein the message-receiving task is scheduled. The proposed algorithm allows only the duplication of parent tasks so as not to increase the complexity of the algorithm. Simulation on various type of task graphs provides that the scheduling results by using HDS are better than those by using the existing heterogeneous scheduling schemes.

유방에 발생한 Lupus Panniculitis 1 예

문현주(Hyun Ju Moon),이지범(Jee Bum Lee),김성진(Seong Jin Kim),이승철(Seung Chul Lee),원영호(Young Ho Won) 대한피부과학회 2002 대한피부과학회지 Vol.40 No.7

Lupus panniculitis is a chronic inflammatory disease of subcutaneous fat that occurs in 2∼3% of patients with systemic lupus erythematosus. Lupus panniculitis typically presents with firm, indurated subcutaneous nodules or plaques commonly developed in proximal extremities, trunk, head and neck. Breast involvement with lupus panniculitis (lupus mastitis) has been infrequently reported. We experienced a case of lupus mastitis developed in a 44-year-old female confirmed by histologic features and laboratory findings. Antimalarial therapy resulted in the complete resolution of the lesions.

혈중 항뮬러관호르몬 저하를 진단 받은 난임 환자의 한방치료 후 임신 4례

문현주 ( Hyon Ju Moon ),조현주 ( Hyun Ju Cho ) 대한한방부인과학회 2015 대한한방부인과학회지 Vol.28 No.2

Objectives: AMH (Anti-Mullerian Hormone) is considered a sensitive marker of ovarian reserve, and it tends to be included among basic fertility tests. This paper is to report four pregnancies which were achieved by subfertile women with low AMH level after Korean medical treatments. Methods: Four cases of pregnancy by subfertile women, aged 34 to 37, with low AMH level (0.04 to 0.76 ng/mL), after Korean medical treatments between July 2012 and May 2015, were analysed. The patients were diagnosed as Kidney deficiency (腎虛), Blood extravasation (瘀血) and/or Liver Qi stagnation (肝氣 鬱結). Herbal medicine, acupuncture, pharmacopuncture and moxibustion treatments were applied. Results: The four subfertile women with low AMH level achieved pregnancy after Korean medical treatments. Conclusions: The case report suggests that Korean medical treatment can be an effective option for subfertile women with low AMH level before Assisted Reproductive Technology.

Cyclosporin A에 의한 치은 과증식의 형태학적 특성

문현주,김창성,서종진,박지숙,윤정훈,조규성,최성호,Moon, Hyun-Ju,Kim, Chang-Sung,Suh, Jong-Jin,Park, Ji-Sook,Yoon, Jung-Hoon,Cho, Kyoo-Sung,Choi, Seong-Ho 대한치주과학회 2000 Journal of Periodontal & Implant Science Vol.30 No.3

Cyclosporin A(CsA) is now widely used to treat organ transplant recipients. But CsA has various short-and long-term side effects. Especially, gingival hyperplasia is not easy to resolve since its nature is still unknown. This study discusses the pathogenesis of CsA-induced gingival hyperplasia on the basis of data obtained from light and electron microscopic studies of biopsis from patients on CsA treatment after kidney transplantation. Light microscopically, the multilayered squamous epithelium showed an irregular surface of parakeratosis and deep invaginations in the subepithelial tissue. At lamina propria, we observed bundles of irregularly arranged collagen fiber, some fibroblasts, numerous capillary vessels and a large diffuse infiltration of plasma cells. Ultrastructurally, many fibroblasts, collagen fibers, collagen fibrils were present in lamina propria. On the basis of the data collected, we propose that the morphological features of the dimensional increase in gingival tissue associated with CsA treatment in kidney transplant patients may be considered proliferative fibroblasts, collagen fibers, collagen fibrils in lamina propria.

발달장애인 지원자가 바라본 발달장애인 리더교육 프로그램

문현주(Hyun-Ju Moon),류주현(Ju-Hyun Ryu),김필호(Pil-Ho Kim) 한국산학기술학회 2024 한국산학기술학회논문지 Vol.25 No.4

자산유동화증권을 활용한 자본조정에 관한 연구

문현주(Moon, Hyun Ju) 대한경영학회 2009 大韓經營學會誌 Vol.22 No.4

미디어 데이터의 빠른 참조를 위한 캐시 운영 전략

문현주,김석일,Moon, Hyun-Ju,Kim, Suk-il 한국정보처리학회 2004 정보처리학회논문지 A Vol.11 No.1

스트리밍 형태로 처리되는 멀티미디어 응용 데이터는 공간적 지역성은 큰 대신 시간적 지역성이 낮은 특징이 있다. 이 논문에서는 멀티미디어 응용 데이터에 내재된 메모리 참조의 규칙성을 활용하는 동적 선인출 기법을 제안하였다. 제안된 기법은 배열을 작은 블록으로 나누어 블록별로 계산을 수행하는 응용 프로그램의 경우에 기존의 방법과 비교하여 선인출 에러를 크게 줄일 수 있다. 여러 가지 미디어 벤치마크에 대한 실험 결과, 제안된 기법이 기존의 선형 선인출 기법에 비하여 예측의 정확도가 높고 성능이 우수함을 확인하였다. Multimedia data processing in streaming pattern contains high spatial locality and low temporal locality. This paper has proposed a dynamic data prefetching scheme that fully exploits the regularity between memory addresses referred consecutively. Compared to the existing data Prefetching scheme, the Proposed scheme can reduce data Prefetching error when an application divides an way into smaller blocks and processes them block by block. Experimental results on various media benchmark programs show the proposed scheme predicts memory addresses more accurately and results in better performance than existing prefetching schemes.