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김대성,이민혁,권오정,정인범,손지웅,나문준,권선중 대한결핵및호흡기학회 2015 Tuberculosis and Respiratory Diseases Vol.78 No.4
A 45-year-old man presented with dyspnea and hemoptysis during exercise. A chest computed tomography (CT) revealed multifocal diffuse patchy ground glass opacity and interlobular septal thickening in both the lungs. Permeability pulmonary edema or pulmonary hemorrhage was suspected. Serologic studies for autoimmune disorders and vasculitis were negative. There was no laboratory evidence of coagulopathy, other hematopoietic disease or infectious disease. Considering correlation with exercise, we diagnosed exercise-induced pulmonary hemorrhage (EIPH) or exerciseinduced pulmonary edema (EIPE). The patient was managed with antifibrinolytics, antibiotics, and antitussive agent. After a week, follow-up chest CT revealed completely resolved pulmonary hemorrhage. About 2 months after the first event, he visited again with dyspnea and hemoptysis during running. In the present study, we report a case of recurrent pulmonary hemorrhage after exercise.
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Work-related Cerebro-Cardiovascular Diseases in Korea
김대성,강성규 대한의학회 2010 Journal of Korean medical science Vol.25 No.-
Cerebro-cardiovascular disease (CVD) is one of compensable occupational diseases in Korea as in Japan or Taiwan. However, most countries accept only cardiovascular diseases (ischemic heart diseases) as compensable occupational diseases if any, but not cerebrovascular diseases. Korea has a prescribed list of compensable occupational diseases. CVD was not included in the list until 1993. In the early 1990s, a case of cerebral infarction was accepted as occupational disease by the Supreme Court. The decision was based on the concept that workers’ compensation system is one of the social security systems. In 1994,the government has established a diagnostic criterion of CVD. The crude rate of compensated cerebrovascular disease decreased by 60.0% from 18.5 in 2003 to 7.4 in 2008per 100,000 workers, and that of compensated coronary heart disease decreased by 60.5%from 3.8 in 2003 to 1.5 in 2008 per 100,000 workers. The compensated cases of CVD dramatically increased and reached its peak in 2003. Since many preventive activities were performed by the government and employers, the compensated cases have slowly decreased since 2003 and sharply decreased after 2008 when the diagnostic criterion was amended. The strategic approach is needed essentially because CVDs are common, serious and preventable diseases which lead to economic burden.
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김대성,김창은 한국경영공학회 2009 한국경영공학회지 Vol.14 No.3
For this data quality analysis case, S finance domain users were questioned and analyzed on the data quality issues. Also, an approach of the information quality improvement based on the 6 sigma was suggested. It suggests ⑴ data quality management process based on the DMAIC, ⑵ factors for data quality management and ⑶ an organization view for managing data quality.
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김대성 한국일본문화학회 2012 日本文化學報 Vol.0 No.55
The aim of this study is to verify the validity of my reconstruction Zhi rhyme(之韻) [ i i] and [i i] in Zhi rhyme group(止攝), using the literature on Sino-Korean, Many? Kana or Japanese phonetic alphabet, Sino-Vietnamese and Sino-Tibetan. To sum up, the following grounds can be considered : (1) In fourth division all the initials in Zhi rhyme except apical sibilants that have something to do with Pre-Ancient Chinese are /이/ in Sino-Korean, whereas in third division especially velars and laryngeals are /의/. The fact that Sino-Korean has vowel /으/ of final /의/ in velars and laryngeals implies it had central vowel in Ancient Chinese. ; (2) In third division except velars that have the other /i/ or /i/ in Many? Kana, all the other initials are /i/ in Zhi rhyme, and in fourth division all the initials are /i/. However, in Pre-Ancient Chinese Many? Kanas as 思里已 are /so/·/ro/·/yo/, that is, the other /o/ or /o/, which means that vowels in Zhi rhyme are strong and central [ ]. In Ancient Chinese the weakening of [ ] in [ i i] and [i i] may be suitable for /i/. ; (3) In Sino-Vietnamese and Sino-Tibetan the third and fourth divisions are rendered as /i/ in all the initials except dentals’s [ ] in Sino-Vietnamese. The fact tells us two assumptions: vowel might be weak and ending [i]. In Sino-Vietnamese we can trace the vowel [ ] in Zhi rhyme that may be rendered in Pre-Ancient Chinese.
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Resonant Structures of Overlapping Autoionization Rydberg Series in Photoionization of the N3+ Ion
김대성,김영순 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.51 No.I
The resonant structures of absolute photoionization cross sections for N$^{3+}$ ion are calculated and compared with the recent experimental measurements and the previous calculations performed in the Opacity Project. We have used a noniterative eigenchannel R-matrix method, which is different from the R-matrix used in the Opacity Project. Comparisons with experimental results for the photoionization of the $^1S^e$ ground state and the $^{1,3}P^o$ excited states of N$^{3+}$ in the photon energy range 62 -- 90 eV show overall good agreement with the present theoretical results. The lower members of the autoionizing Rydberg series converging to each of the N$^{4+}$ $2p$ threshold are identified and discussed The resonant structures of absolute photoionization cross sections for N$^{3+}$ ion are calculated and compared with the recent experimental measurements and the previous calculations performed in the Opacity Project. We have used a noniterative eigenchannel R-matrix method, which is different from the R-matrix used in the Opacity Project. Comparisons with experimental results for the photoionization of the $^1S^e$ ground state and the $^{1,3}P^o$ excited states of N$^{3+}$ in the photon energy range 62 -- 90 eV show overall good agreement with the present theoretical results. The lower members of the autoionizing Rydberg series converging to each of the N$^{4+}$ $2p$ threshold are identified and discussed
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