• 대한한방내과학회지
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• 제25권3호
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• pp.569-572
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• 2004

Marchiafava-Bignami Disease(MBD) is a rate disease caused by chronic alcohol abuse and involves the degeneration of corpus callosum pathological in character. Until recently there was no method to diagnose MBD except postmortem examination, but nowadays rodiology has advanced increasingly, so MBD can be diagnosed correftly and easily. A case of MBD with stroke symptoms is reported. A 56-year-old man who has been a heavy alcoholic for several years was admitted with stroke symptoms such as stuporous mental, hemi-extremities weakness, dysphasia and dysphagia. After treatment these symptoms were improved.

• 한국정보통신학회논문지
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• 제8권2호
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• pp.338-343
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• 2004

블록 정합 알고리즘 (Block Matching Algorithm: BMA)에서 탐색 패턴은 탐색 속도와 화질에 매우 중요한 요소로 작용한다. 본 논문이 제안하는 HDS(Half Diamond Search) 패턴은 대부분 영상들의 움직인 벡터가 탐색 영역의 중심과 상ㆍ하ㆍ좌 우 방향에 집중되어 있는 특성을 고려하여 먼저 탐색 원점을 중심으로 4 방향 탐색 점을 배치한 후 블록 정합을 실행한다. 이들 중 정합 오차가 가장 작은 지점을 기준점으로 상 방향으로 탐색 점을 확장하여 정합 오차를 측정하고 기준점보다 오차가 작으면 상 방향확장을 선택하고 그렇지 않으면 기준점을 중심으로 좌우 두 점 중 정합오차가 작은 점을 선택한다. 선택된 방향으로 이 과정을 반복하며 움직임을 추정한다. 탐색하면서 움직임이 낮은 부분을 탐색 대상에서 제외해가기 때문에 탐색이 비교적 빠르고 정확하게 이루어진다. 이 방법은 기존의 부분 최적 탐색 기법인 NTSS, DS, 그리고HEXBS등의 탐색법과 비교할 때 유사한 화질을 유지하면서도 탐색 점수에서는 평균 23%의 개선된 결과를 얻었다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2003년도 춘계학술대회논문집
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• pp.839-845
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• 2003

This paper introduces multichannel blind source separation (BSS) and multichannel blind deconvolution (MBD) based on higher order statistics of signals from convolutive mixtures. In particular, we are concerned with the case that the number of inputs is the same as the number of outputs. Simulations for two input two output cases are carried out and their performances are assessed. One of the major applications of those sequential algorithms (BSS and MBD) is demonstrated through the fault signal detection from only a single measurement of rotating machine, which offers a certain degree of practicability in the engineering field such as machine health monitoring or condition monitoring.

• Childhood Kidney Diseases
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• 제24권1호
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• pp.14-18
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• 2020

Chronic kidney disease-mineral bone disorder (CKD-MBD) is a systemic disorder of mineral and bone metabolism caused by CKD. Patients with early-stage CKD who present with disordered regulation of bone and mineral metabolism may be asymptomatic. However, if untreated, the condition can be a significant barrier in achieving optimal bone strength, linear growth, and cardiovascular health in pediatric patients with CKD. Thus, the current study evaluated the definition, pathogenesis, diagnosis, and management of pediatric CKD-MBD.

• 한국CDE학회지
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• 제23권1호
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• pp.22-25
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• 2017

• Archives of Plastic Surgery
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• 제41권3호
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• pp.258-263
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• 2014

Background For early breast cancer patients, skin-sparing mastectomy or nipple-sparing mastectomy with sentinel lymph node biopsy has become the mainstream treatment for immediate breast reconstruction in possible cases. However, a few cases of skin necrosis caused by methylene blue dye (MBD) used for sentinel lymph node localization have been reported. Methods Immediate breast reconstruction using a silicone implant was performed on 35 breasts of 34 patients after mastectomy. For sentinel lymph node localization, 1% MBD (3 mL) was injected into the subareolar area. The operation site was inspected in the postoperative evaluation. Results Six cases of immediate breast reconstruction using implants were complicated by methylene blue dye. One case of local infection was improved by conservative treatment. In two cases, partial necrosis and wound dehiscence of the incision areas were observed; thus, debridement and closure were performed. Of the three cases of wide skin necrosis, two cases underwent removal of the dead tissue and implants, followed by primary closure. In the other case, the breast implant was salvaged using latissimus dorsi musculocutaneous flap reconstruction. Conclusions The complications were caused by MBD toxicity, which aggravated blood disturbance and skin tension after implant insertion. When planning immediate breast reconstruction using silicone implants, complications of MBD should be discussed in detail prior to surgery, and appropriate management in the event of complications is required.

• 대한기계학회논문집A
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• 제36권4호
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• pp.465-474
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• 2012

본 연구에서는 수 많은 입자가 포함된 다물체 동역학 모델을 시뮬레이션 하여 그 결과를 도출하였다. 수 많은 입자들은 GPU 를 적용한 이산 요소법을 이용해 풀었다. 입자들의 Contact Force 를 계산하기 위해 Fast Algorithm 이 적용되었고 계산 속도 향상을 위해 NVIDIA 사의 CUDA 프로그래밍을 하였다. 입자들간의 계산은 Explicit 적분기가 사용되었으며 다물체 동역학은 순환 공식(Recursive Formulation)을 사용 하고 Implicit 적분기를 사용하였다. 입자들과 다물체 사이의 Contact Force 를 동시에 시뮬레이션 하기 위해서 입자동역학과 다물체 동역학의 통합해석을 할 수 있는 알고리즘을 개발하였다. 수치 실험의 예로서 화물트럭의 입자 영향을 알아 보기 위한 화물트럭 모델과 대부분의 동력 전달 장치에 사용되는 기어 모델을 시뮬레이션 하였다.

• Childhood Kidney Diseases
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• 제18권2호
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• pp.64-70
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• 2014

목적: 본 연구는 만성복막투석환자에서 만성 신부전 무기질 골 장애의 목표 달성 정도의 평가와 중증 부갑상선기능항진증에서 비타민 D 치료에 대해 검토하였다. 방법: 본 연구는 2003년 1월부터 2012년 12월까지 1년 이상 복막투석을 시행한 53명의 환자를 대상으로 한 후향적 연구이다. 결과: 인산염 결합제제와 비타민 D 치료에도 불구하고 투석기간 중 인, 칼슘, PTH가 KDOQI의 목표치 내에 있었던 비율의 평균${\pm}$표준편차 값은 각각 $25.06{\pm}17.47%$, $53.30{\pm}23.03%$, $11.52{\pm}9.51%$이었다. 10명(18.9%)의 환자에서 CKD-MBD의 임상적 증상 혹은 영상의학적 징후가 있었고, 이는 증상 혹은 징후가 없었던 군과 비교하여 PTH가 목표치보다 높았던 시간의 비율이 길고($63.79{\pm}27.86%$ vs. $37.09{\pm}27.76%$, P=0.022) PTH가 목표치보다 낮았던 시간의 비율이 짧은 것($11.74{\pm}7.37%$ vs $40.77{\pm}25.39%$, P<0.001)과 유의한 상관관계가 있었다. 중증 부갑상선기능항진증이 있었던 25명의 환자 중 고용량비타민 D 치료를 받은 환자는 13명이었고 이 중 7명의 환자가 특별한 합병증 없이 부갑상선기능항진증이 조절되었다. 결론: 만성복막투석에서 CKD-MBD를 조절하기 위한 노력에도 불구하고 칼슘, 인, 비타민 D, PTH가 목표치를 만족하는 기간의 비율은 낮은편이다. 중증 부갑상선기능항진증 환자의 반 정도에서 고용량 비타민 D 치료가 필요하였고 이 중 50% 정도에서 효과가 있었다.

• 한국자동차공학회논문집
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• 제25권1호
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• pp.116-126
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• 2017

We suggest a process for the basic software configurations and application development in the mode management design of AUTOSAR-based ECU. Mode management is an essential task and AUTOSAR provides the mode management components for the runtime state handling of an ECU, such as BswM, application mode manager and RTE. BswM is used to meet the custom's requirements for ECU state handling. The behavior of BswM is configured with a set of rules in the form of "if-else" statements, so it is a complicated job and a potential source of errors as the number of rules increases. These difficulties can be overcome using the Model-Based Development approach, which is widely used in the AUTOSAR SW development. An efficient process is proposed to apply the MBD approach to the BswM configuration. An application mode development process is also proposed to improve the mode management design by combining the MBD process. Development tools are developed to adapt these proposed processes to the traditional ones. Simulation and experimental results are provided to prove the feasibility of the proposed approach.

• Nuclear Engineering and Technology
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• 제55권11호
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• pp.4125-4133
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• 2023

The transportation of spent nuclear fuel is an important process that involves road and sea transport from an interim storage facility to storage and final disposal sites. As spent nuclear fuel poses a significant risk, carefully evaluating its vibration and shock characteristics under normal transport conditions is essential. In this regard, full-scale multi-modal transport tests (MMTT) have been conducted domestically and internationally. In this paper, we discuss the process of developing a multi-body dynamics (MBD) model to analytically simulate conditions that cannot be considered in tests. The MBD model is based on the KORAD-21 transportation system was validated using the Korean MMTT results from 2020 to 2021. This paper summarizes the details of the development and verification of the MBD model for the KORAD-21 transportation system under normal transport test conditions. This approach can be applicable to various transportation scenarios and systems, and the results of this study will help to ensure that nuclear fuel transportation is conducted safely and effectively.