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김문환,김미진,김재순,남라주,박정옥,심소영,최은경,김선엽,Kim, Mun-Whan,Kim, Mi-Jin,Kim, Jae-Suen,Nam, La-Ju,Park, Joung-Ok,Sim, So-Young,Choi, Eun-Kyung,Kim, Suhn-Yeop 대한물리치료과학회 2000 대한물리치료과학회지 Vol.7 No.1
The relationship between symptoms of temoromandibular joint dysfunction(TMJD) and stomatognathic habit was studied in 500 adolescents(mean age 22.45). The severity of TMJD was determined by using a self-reported anamnestic questionnaire composed of 10 questions regarding common TMJD. The index of oromandibular habit was determined by using a self-reported anamnestic questionnaire composed of 17 questions. There was a positive correlation(p<0.01) between the index of TMJD and index of stomatognathic habit. The most frequent symptoms were clicking sounds from the TMJ(37.4%) and a feeling of pain in the jaws(33.3%). The most frequent stomatognathic habit were a chin support(69.8%) and one side chewing(68.0%).
원발성 자연기흉에서 흉부 컴퓨터 단층촬영의 진단적 의의
김문환,이철주,김세환,Kim, Mun-Hwan,Lee, Cheol-Ju,Kim, Se-Hwan 대한흉부심장혈관외과학회 1993 Journal of Chest Surgery (J Chest Surg) Vol.26 No.3
The pathogenesis of the primary spontaneous pneumothorax is the rupture of subpleural bleb or bullae and subsequent sudden collapse of the affected lung. Mostly, the bullae or blebs are present bilaterally, but detecting the number, size, and location of the causating foci by plain chest film is quite difficult . We have performed chest CT scans for detecting the bullous lesions in 33 cases of primary spontaneous pneumothorax, and compared the results with surgical findings.1. Seventy-four blebs were identified in the chest CT scan, and 100 blebs or bullae were detected surgically [ Sensitivity was 0.74 ].2. Diagnosis rate was 80% [40/50] at right upper lobe, 75.7% [28/37] at left upper lobe, 55.6% at right lower lobe, and 25.0% at left lower lobe, respectively.3. Blebs or bullae smaller than 1 cm of its diameter were detected by 57.1% [24/42] of sensitivity, and in the cases of size larger than 1 cm, it revealed 86.2% [50/58] of sensitivity respectively.4. Of the 45 cases, 7 cases were false negative [15.6%], most of these were ruptured or small size [< 0.5 cm]. 5. One case was false positive, which was irregular adhesion at the apex of the lung.6. We could detect blebs or bullae with preoperative CT scans in 84.4% [38/45] of total patients. In conclusion, chest CT scan is a very advantageous diagnostic tool for proper management and preventing recurrence of primary spontaneous pneumothorax patient.
다양한 버퍼층 위에 증착한 In<sub>2</sub>O<sub>3</sub> 박막의 구조, 광학 및 전기적 특성
김문환,Kim, Moon-Hwan 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.7
The effects of various buffer layers on the $In_2O_3$ transparent conducting films grown on glass substrates by radio-frequency reactive magnetron sputtering were investigated. The $In_2O_3$ thin films were deposited at $400^{\circ}C$ of growth temperature and 100% of oxygen flow rate. The optical, electrical, and structural and morphological properties of the $In_2O_3$ thin films subjected to buffer layers were examined by using ultraviolet-visible spectrophotometer, Hall-effect measurements, and X-ray diffractometer, respectively. The properties of $In_2O_3$ thin films showed different results, depending on the type of buffer layer. As for the $In_2O_3$ thin film deposited on ZnO buffer layer, the average transmittance was 89% and the electrical resistivity was $7.4{\times}10^{-3}\;{\Omega}cm$. The experimental results provide a way for growing the transparent conducting film with the optimum condition by using an appropriate buffer layer.