• Pediatric Infection and Vaccine
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• 제24권2호
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• pp.108-111
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• 2017

영아에서의 결핵은 소아나 성인의 결핵에 비해 더 심한 증상과 합병증을 초래할 수 있다. 하지만 증상이 전형적이지 않거나 균 검출이 잘 되지 않는 경우가 많아 진단에 어려움이 있다. 본 증례는 폐결핵으로 진단된 3개월 환아에 대한 보고이다. 환아는 광범위한 양측 폐의 병변에도 불구하고 발열이나 호흡곤란, 기침 등의 증상을 보이지 않았으며 항결핵제 투약 6개월째 폐병변이 호전되었다. 일부 영아 결핵에서 증상이 나타나지 않는 것은 면역반응의 미성숙으로 부분적으로 설명될 수 있을 것이다. 따라서 영아에서 결핵 접촉자 검진의 중요성이 강조된다.

• 한국지진공학회:학술대회논문집
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• 한국지진공학회 2006년도 학술발표회 논문집
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• pp.89-96
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• 2006

Recently, many researches on the dissipation of excess pore pressure in liquefied sand grounds have been performed to evaluate post-liquefaction behaviors of structures. In this paper. centrifuge tests were performed to simulate liquefaction behaviors of prototype soil. The evaluation model of solidified layer thickness was developed to simulate non-linear variation of solidified layer thickness with time. Also, the dissipation of excess pore pressure in liquefied sand was evaluated by applying the solidification theory and the consolidation theory. The developed model gives a good estimation of the solidified layer thickness and the time history of excess pore pressure.

• Korean Journal of Radiology
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• 제1권3호
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• pp.162-164
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• 2000

Malignant transformation of teratoma in the anterior mediastinum is rare; the mass usually has a long history and is seen in older patients. We report a case of teratoma with malignant transformation in the anterior mediastinum, complicated by rupture. CT revealed a lobulated, inhomogeneous cystic mass with a fat component and wall calcifications. The lateral wall was disrupted and consolidation in the adjacent left upper lobe was noted, suggesting rupture. A heterogeneously enhanced solid portion, obliterating the fat plane between the mass and the great vessels was present in the medial aspect of the mass, and pathologic examination demonstrated the presence of adenocarcinoma.

• Clinical and Experimental Pediatrics
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• 제58권5호
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• pp.190-193
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• 2015

Allergic bronchopulmonary aspergillosis (ABPA) is a hypersensitivity lung disease due to bronchial colonization of Aspergillus fumigatus that occurs in susceptible patients with asthma or cystic fibrosis. A 10-year-old girl was referred to the Department of Pediatric Pulmonology for persistent consolidations on chest radiography. Pulmonary consolidations were observed in the right upper and left lower lobes and were not resolved with a 4-week prescription of broad-spectrum antibiotics. The patient had a history of atopic dermatitis and allergic rhinitis but no history of asthma. She had no fever but produced thick and greenish sputum. Her breathing sounds were clear. On laboratory testing, her total blood eosinophil count was $1,412/mm^3$ and total serum IgE level was 2,200 kU/L. Aspergillus was isolated in the sputum culture. The A. fumigatus-specific IgE level was 15.4 kU/L, and the Aspergillus antibody test was also positive. A chest computed tomography scan demonstrated bronchial wall thickening and consolidation without bronchiectasis. An antifungal agent was added but resulted in no improvement of pulmonary consolidations after 3 weeks. Pulmonary function test was normal. Methacholine provocation test was performed, revealing bronchial hyperreactivity ($PC_{20}=5.31mg/mL$). Although the patient had no history of asthma or bronchiectasis, ABPA-seropositivity was suspected. Oral prednisolone (1 mg/kg/day) combined with antifungal therapy was started. Pulmonary consolidations began decreasing after 1 week of treatment and completely resolved after 1 month. This is the first observed and treated case of seropositive ABPA in Korean children without previously documented asthma.

• 한국지반공학회논문집
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• 제21권4호
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• pp.41-49
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• 2005

점토의 거동은 온도변화에 민감하기 때문에 고온이력을 받는 점토의 공학적 성질에 관한 연구가 최근 증가하고 있다. 이러한 증가 현상은 온도의 영향을 연구함으로서 점토의 거동을 지배하는 본질적인 메커니즘을 해명할 수 있고 최근 경제활동의 증가와 더불어 화학적인 지반개량, 토양 열 비축시스템 및 방사성 핵폐기물 지하처리 시스템 등 지반이 고온환경에 노출되는 기회가 증가하고 있기 때문이다. 이러한 측면에서 열 이력을 받는 점토 지반의 압밀 및 강도특성을 파악하는 것은 매우 중요하다 따라서 본 연구에서는 고온조건에 있는 점토의 역학적 거동을 삼축압축 시험을 통해 조사하였다. 구체적인 방법으로는 고온고압형 삼축압축시험기를 이용해서 압밀비배수 삼축압축시험을 $20^{\circ}C,\;50^{\circ}C,\;75^{\circ}C,\;80^{\circ}C$ 및 $100^{\circ}C$등으로 온도를 변화시켜 실온 및 고온조건에 있는 점토의 변형${\cdot}$전단강도 및 압축${\cdot}$압밀특성 등을 조사하였다.

• Tuberculosis and Respiratory Diseases
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• 제79권3호
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• pp.179-183
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• 2016

A 59-year-old man presented with acute dyspnea following sudden productive cough and expectoration of a full cup of "blood-tinged" sputum. He had been diagnosed with hepatitis B virus-related hepatocellular carcinoma and had received transarterial chemoembolization 5 years ago for a 20-cm hepatic mass; he denied any history of hematemesis and the last esophagogastroduodenoscopy from a year ago showed absence of varix. Chest computed tomography (CT) with angiography showed new appearance of right basal lung consolidation but no bleeding focus. Despite the use of systemic antibiotics, the patient developed respiratory failure on day 7 of hospitalization. After intubation, a massive amount of brown sputum with anchovy-paste-like consistency was suctioned via the endotracheal tube. Bronchoscopic toileting was performed and the patient was extubated. In the ward, he continued to expectorate the brown sputum. On day 25 of hospitalization, a repeat CT scan showed simultaneous disappearance of the pneumonic consolidation and the necrotic fluid within the hepatic mass, suggesting the presence of a fistula. He has continued to receive systemic antibiotics, sorafenib, and entecavir, and follow up by respiratory and hepato-oncology specialists.

• Tuberculosis and Respiratory Diseases
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• 제66권3호
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• pp.220-224
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• 2009

콕시디오이데스 진균증은 미국 남서부 지역의 풍토병으로 알려져 있고 국내 발병 사례가 적으므로 진단에 혼선과 지연을 초래할 수 있다. 따라서 풍토지역 거주력이나 여행력을 문진하는 것이 매우 중요하고 호산구 증다증을 동반할 경우 콕시디오이데스 진균증을 감별질환의 한 가지로 생각해야 할 것이다. 또한 의심이 되는 경우 적극적인 조직검사 및 엄격한 보호아래 시행되는 배양검사를 통한 진단과 치료가 필요하겠다. 저자들은 C.immitis 풍토지역인 미국 애리조나 주에서 거주 후 입국한 정상 면역력환자에서 다발성 폐경화 및 폐문부 림프절 비대 소견을 보여 조직 검사와 기관지세척액 및 폐조직배양검사를 통하여 폐 콕시디오이데스 진균증으로 진단한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• 한국지반공학회논문집
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• 제36권4호
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• pp.5-15
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• 2020

본 논문은 점성토의 응력-변형률 관계를 모사하기 위해 한계 상태 이론을 기반으로 하여 수정한 Modified Cam-Clay 파괴면을 제안한다. 평균유효응력과 von Mises 응력의 공간에서 타원형상의 파괴면을 가지는 Modified Cam-Clay 모델의 경우, 강성 및 발달법칙 미적용시, 비배수 전단조건하에 한계상태 평균유효응력은 선행압밀 평균유효응력의 절반이 되며, 이는 실제 점성토의 거동과 차이가 있다. 본 연구에서는 선행압밀 평균유효응력은 점성토의 압밀이력으로 정량화되고, 한계상태 평균유효응력은 점성토의 현재 간극비로 산정되어, 이 둘간의 비율이 고정되지 않는 찌그러진 형태의 파괴면을 제안한다. 제안된 파괴면을 항복평면으로 가정하고, 비배수 삼축압축 거동을 모사한 결과, 실내 실험 결과와 유사한 결과를 얻을 수 있었다

• 건축역사연구
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• 제15권1호
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• pp.41-60
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• 2006

Preservation of wooden architecture by means of synthetic resin, is physical and chemical work. Synthetic resins are using for consolidation and restoration of decayed members. Since 1978, synthetic resin became useful preservation of architectural heritage in Korea. The first object was Chimgyeru of Songgwang-temple in Suncheon city. In the 1980s, have begun the care of materials for conservation on the architectural heritage, it was influenced according to authenticity of UNESCO Venice charter's principle, in 1964. In Korea, preservation of wooden architecture by means of synthetic resin that is sing many kinds of epoxies. Among the specific types of epoxies are araldite XN1023, SV427, etc. The use of synthetic resin have merits and demerits in the restoration for architectural heritage. The merit is that it is more smaller change with new members during preservation work. But the demerit is an irreversibility of the epoxy resin. In 1999, 'ICOMOS International Wood Committee' recommend contemporary materials and techniques, should be chosen and used with the greatest caution. And preservation work should reversible, as possible as technically. Therefore, should be data continous for preservation of wooden architecture by synthetic resin. Because data is very important work about a preservation of wooden architecture by synthetic resin. And should be try to think about new materials and techniques instead of synthetic resin, in the long view.

• Tuberculosis and Respiratory Diseases
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• 제71권4호
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• pp.278-281
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• 2011

Allergic bronchopulmonary aspergillosis (ABPA) is a complex clinical entity resulting from an allergic immune response to Aspergillus species, and most often occurs in patients with asthma. ABPA is rarely observed in the absence of asthma, which is, in fact, the principal criterion for its diagnosis. Our patient was a 53-year-old woman with no history of bronchial asthma. She presented with a 1-month history of cough, mucopurulent nasal discharge, and localized pulmonary consolidation. Peripheral blood eosinophilia and elevated serum IgE were observed. Sinus radiography showed right maxillary sinusitis. Pathologic examination of bronchoscopic biopsy specimens revealed conglomerates of fungal hyphae. Pulmonary function and bronchial provocation tests were within normal ranges. The patient was successfully treated for 3 months with itraconazole and oral prednisolone. There has been no evidence of recurrence over a 7-month follow-up. ABPA coupled with sinusitis in a nonasthmatic patient is a very rare occurrence and warrants reporting.