• Journal of Korean Neurosurgical Society
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• 제57권1호
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• pp.58-60
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• 2015

A 15-year-old female patient with progressive pulsatile exophthalmos caused by intraorbital encephalocele was evaluated with computed tomography (CT) and magnetic resonance imaging (MRI) in our clinic. She had no history of trauma or reconstructive surgery. When she was a little girl, she had undergone surgery for congenital glaucoma on the right eye. On the three-dimensional image of CT, a hypoplasic bone defect was observed in the greater wing of the right sphenoid bone. MRI and CT scan showed herniation through this defect of the arachnoid membrane and protruded cerebral tissue into the right orbita. Intraorbital encephalocele is an important entity that can cause pulsatile exophthalmos and blindness.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 추계학술대회
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• pp.483-493
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• 2009

The global economic recession caused a great change of the labor environment such as restructurings and unstable employment. This facts brought about an increase in sense of rivalry, over workload, job uncertainty and lowering of self-confidence. Due to the fact that the work process and employing system in construction field is little differ from normal industries, especially, labors working in construction field are much exposed to the job stress. On this study, we survey construction-field labors and made an analysis of the gathered data through the statistic method to reveal what kind of job-stress factors influence on the defects of construction works. As the result, we investigated the truth of the induction factors which cause the job-stress in costruction field and proposed an alternative plan for an effective job-stress management which make the defect rate low.

• Journal of Korean Neurosurgical Society
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• 제43권1호
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• pp.48-50
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• 2008

We experienced a case of giant arachnoid granulation misdiagnosed as dural sinus thrombosis. A 66-year-old woman presented with a one month history of progressive occipital headache. Computed tomography angiography and cerebral angiography showed a round filling defect at the transverse sinus which was speculated as a transverse sinus thrombosis. Anticoagulation therapy was performed to prevent worsening of thrombosis for 2 weeks and then a Gadolinium-enhanced magnetic resonance imaging scan was performed. The filling defect lesion at the transverse sinus revealed a non-enhancing granule with central linear enhancement, which was compatible with giant arachnoid granulation. We checked the intrasinus pressure difference across the lesion the through the dural sinus in order to exclude the lesion as the cause of headache. Normal venous pressure with no significant differential pressure across the lesion was noted. Headache was treated with medical therapy.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.126-131
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• 2004

The popularity of flat-panel display(FPD), including plasma display panel(PDP) and liquid-crystal display(LCD), has given rise to the need to streamline their production. In these days, PDP is one of the most popular display devices because of its expansion of manufacturing process and simplicity. Bus electrodes, sustain electrodes, barrier ribs and RGB phosphors are patterned on PDP panel to display an image. Since a minute damage on the pattern can cause a serious defect to display, it is important to inspect the pattern precisely. In this paper, an automatic inspection system of repeated pattern in PDP panel has been introduced to find the defect, such as open, short, dirt, island, and so on. And the inspection system has been operated in the mass production line of PDP.

• Journal of Chest Surgery
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• 제28권4호
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• pp.340-345
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• 1995

Between 1983 and 1993, 250 patients over 16 years of age who had undergone a surgical correction of a congenital cardiovascular disease were reviewed. 222 patients were divided into acyanotic group and 28 patients were cyanotic group. The most common defects were atrial septal defect [96 patients and ventricular septal defect [95 patients . There were 128 patients in the third decade, 71 patients under 20 years of age, 40 patients in the fourth decade and 11 patients over 40 years of age. The male to female ratio was 1.05:1. Operative mortality was 6.8% [4.1% in the acyanotic group and 26.8% in the cyanotic group and the most common cause of death was low cardiac output syndrome.

• 비파괴검사학회지
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• 제30권3호
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• pp.271-281
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• 2010

Brazing fitting which is one of the aircraft hydraulic power system components is widely used for saving weight and achieving higher reliability. Any inherent defects or damage of fitting can cause system failure and/or physical damage of human body due to highly pressurized fluid. Radiographic testing(RT) technique and additional micro-structure investigation on cut-away surfaces have been accomplished to find out some defect-like-inhomogeneity in the fittings. The radiography results showed that some defect-like-inhomogeneity existed inside body. Additional micro-structure investigation on cut-away surface reveals that the inhomogeneity is due to internal voids. In this study, it can be is said that RT technique can be a useful tool for field acceptance test of hydraulic brazing fitting in short time.

• 정보처리학회논문지D
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• 제12D권7호
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• pp.965-978
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• 2005

소프트웨어 개발 시, 일정과 품질에 저해 요인이 되는 결함이 다수 존재한다. 일정과 품질의 저해 요인을 제거하고 동시에 체계적으로 이를 관리하기 위하여 본 논문에서는 opportunity tree 프레임워크를 설계한다. 유사한 프로젝트를 수행 시 영역 전문가의 지식을 활용한 opportunity tree 발생되는 문제점을 예측, 대비할 수 있게 하여, 소프트웨어 프로세스를 개선할 수 있다 본 연구에서는 소프트웨어 개발 시 발생하는 일정관리에 대한 결함을 찾아내고, 원인을 식별 및 해결책을 제시하고자 한다.

• 한국건설관리학회논문집
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• 제21권1호
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• pp.40-49
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• 2020

건설사업의 소송판결에 영향을 미치는 요인을 도시정비사업의 조합설립인가 사건을 중심으로 분석하였다. 판결에 영향을 미치는 요인을 카이제곱 검정에 의한 교차분석 및 로지스틱회귀분석을 활용하여 계량법학적 접근을 통해 분석하였다. 교차분석 결과, 본 안전항변그룹의 경우 조합원지위 또는 소유권 없음, 과거법률관계, 중복제소, 소권남용·소송신탁, 가판력존재, 원·피고적격없음, 제소기간도과 법률상이익없음, 인가고유하자아님 등이 유의한 것으로 나타났다. 반면, 본안쟁점그룹의 경우 유의한 변수는 없는 것으로 분석되었다. 로지스틱 회귀분석 결과, 본안전항변그룹의 경우 원·피고적격없음, 조합원지위 또는 소유권없음, 과거법률관계, 중복 제소, 인가고유하자아님, 소권남용·소송신탁, 기판력존재 등이 유의한 것으로 나타났다. 본안쟁점그룸의 경우 정관관련하자만 유의한 것으로 나타났다. 전반적으로 본안전항변그룹에 비해 본안쟁점그룹의 경우 유의미한 결과가 없거나 매우 낮은 것으로 나타났다.

• 대한유전성대사질환학회지
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• 제15권2호
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• pp.72-77
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• 2015

Purpose: Deficits of the respiratory chain are reported to be the major cause of Leigh syndrome is said to be the underlying causes. The need for biochemical diagnosis to draw more accurate diagnosis or prognosis to support treatments is rapidly increasing. This study tried to analyze the aspects of clinical characteristics and biochemical diagnosis of mitochondrial respiratory chain complex (MRC) defect in Leigh syndrome, using methods of biochemical enzyme assay. Methods: We included total number of 47 patients who satisfied the clinical criteria of Leigh syndrome and confirmed by biochemical diagnosis. All those patients went through muscle biopsy to perform biochemical enzyme assay to analyze MRC enzyme in order to find the underlying cause of Leigh syndrome. Results: MRC I defect was seen in 23 (48.9%) cases taking the first place and MRC IV defect in 15 (31.9%) following it. There were 9 (19.2%) cases of combined MRC defect. Combined cases of type I and IV were detected in 7 (14.9%) patients while type I and V in 2 (4.3%). The onset age of symptom was less than 1 year old in 28 (59.6%). The most common early symptom, observed in 23 (48.9%), was delayed development, but there were other various neurological symptoms observed as well. In regard with the disease progression, 35 (74.5%) patients showed slowly progressive course, the one that progressed continuously but slowly over 2 years of period. As for Maximum motor development, 22 (46.8%) were bed-ridden state, most of them suffering serious delayed development. Patients showed various symptoms with different organs involved, though neuromuscular involvement was most prominent. Delayed development was seen in all cases. Multifocal lesion in brain MRI study was seen in 36 (76.6 %) cases, taking a greater percentage than 11 (23.4%) cases with single lesion. In MR spectroscopy study, the characteristic lactate peak of mitochondrial disease was identified in 20 (42.6%) patients. Conclusions: Further analysis of clinical and biochemical diagnosis on more extended group of patients with Leigh syndrome will enable us to improve diagnostic precision and to understand the natural course of mitochondrial disease.

• Archives of Plastic Surgery
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• 제37권4호
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• pp.421-426
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• 2010

Purpose: Patients with serious burns are prone to chondritis due to lack of soft tissue in the auricle, which can cause severe defects in the auricular morphology. In addition, skin damage occurs frequently in the vicinity of post-burn wounds, presenting difficulties in reconstruction surgery. An auricular reconstruction has functional and cosmetic significance. The aim of this study is to develop appropriate reconstruction methods for auricular defects. Methods: Thirty seven patients, who were treated for auricular defects from 2005 to 2009, were enrolled in this study. A local flap, multiple regional flaps and cartilage framework with or without a temporal fascial flap were applied in reconstruction surgery according to the location of the auricular defect. Results: The age of the subjects ranged from 11 to 56. Some subjects had defects that cover more than half of the helical rim with most exhibiting post-burn scars in the vicinity, for whom a multiple regional flap was used. A single use of a tubed flap was sufficient for subjects with defects that covered less than half of the helical rim. A regional flap was also used for reconstruction in subjects with defects covering both the helical rim and antehelix. Conclusion: Achieving satisfactory results from the skin flaps and skin grafts for post-burn auricular defects in both functional and cosmetic aspects is a difficult task. Therefore, selecting an appropriate surgical method through proper diagnosis of the auricular defect and the state of the available skin in the vicinity is essential.