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고속통신망을 위한 멀티미디어 트랜스포트 프로토콜의 설계 및 구현
장종욱(Jongwook Jang),진교홍(Kyohong Jin),김동훈(DongHun Kim),이정태(Jungtae Lee) 한국정보과학회 1994 한국정보과학회 학술발표논문집 Vol.21 No.1
앞으로의 멀티미디어 트랜스포트 프로토콜은 Gbps이상의 처리율, 다양한 기능 및 융통성 있는 적용이 가능해야 한다. 프로토콜의 처리율을 높이려면 구조가 간단해야 하지만 다양한 기능을 제공하고 융통성 있는 적용이 가능하려면 구조가 복잡해진다. 따라서 상반된 요구조건을 동시에 만족시킬 수 있는 트랜스포트 프로토콜을 설계하기란 쉽지 않다. 다행히 앞으로의 통신망은 에러발생 확률이 낮아질 것이므로 트랜스포트 프로토콜은 고정된 일을 반복 수행하게 될 것이다. 본 논문에서는 이러한 특성을 이용하여 고속통신망에 적합한 MTP 프로토콜을 제안하고 Actel FPGA Chip을 이용하여 하드웨어로 구현하였다. MTP 프로토콜은 정보평면과 제어평면으로 구성된다. 여기서 정보평면은 에러가 발생되지 않는 한 프로토콜 상태정보에 관계없이 사용자 정보를 전달하는 고정된 일을 반복하고, 제어평면은 프로토콜 상태정보에 따라 정보평면의 동작을 제어한다. 따라서 MTP의 처리율은 정보평면에 의해 좌우되고 Gbps 이상의 처리율도 제공할 수 있다.
S-221 Diastolic dysfunction is much closely related with exercise intolerance in women
( Jongwook Yu ),( Youngwoo Jang ),( Sojung Lee ),( Mi-seung Shin ) 대한내과학회 2016 대한내과학회 추계학술발표논문집 Vol.2016 No.1
Background: Diastolic dysfunction is independently related with exercise intolerance. We analyzed the relationship between left ventricular (LV) filling pressure and exercise capacity that was measured through treadmill exercise test (TMT). Methods: The data of 1589 patients (1155 women, mean age=51.2±10.8 years) who presented with chest pain in outpatient clinic were analyzed. We evaluated and performed tests such as baseline blood tests including cardiac markers, TMT, echocardiography, coronary angiography (CAG), cardiac MRI and other imaging tests if indicated. We analyzed echocardiography and TMT results in these patients. First, we divided the patients into 2 groups according to the E/Ea of 13. Second, we estimated the exercise capacity with TMT test results (METs, total exercise time). Finally, we compared NT-proBNP, LV end diastolic dimension (LVEDD), LV end systolic dimension (LVESD), LV mass index (LVMI), LV ejection fraction (LVEF) and LV diastolic function such as E/Ea in each group to scrutinize the relationship among these values. Results: Work amount described by METs was higher for low E/Ea group (10.17±2.61 METs vs. 8.41±2.54 METs, p<0.001). Total TMT exercise time was longer for low E/Ea group (8.02±2.5 minutes vs. 6.59±2.7 minutes, p<0.001). NT-proBNP was higher in high E/Ea group (190.1±596.9 pg/mL vs. 1889.2±5720 pg/mL, p=0.006). LVEDD was different between groups (46.49±5.03 mm in low E/Ea group vs. 47.52±6.14 mm in high E/Ea group, p=0.01). LVESD was smaller in low E/Ea group (29.45±5.58 mm vs. 31.11±8.07 mm, p=0.002). LVMI was also significantly smaller in low E/Ea group (87.82±28.9 g/m2 vs. 98.15±35.94 g/m2, p<0.001). However, LVEF was not significantly different between two groups (61.67±6.82 % in low E/Ea group vs. 60.94±10.38 % in high E/Ea group, p=0.170). When the data was analyzed according to sex, the results were still meaningful in both sex. The relation between diastolic dysfunction and exercise capacity was much stronger in women than in men. Conclusion Diastolic dysfunction was closely related with exercise capacity in both men and women. However, the relation was much stronger in women than in men.
An Unusual Case of Tubo-ovarian Abscess by Gemella morbillorum
Jang, Hyoungsun,Kim, Seryun,Ryu, Kiyoung,Lee, Kkot Sil,Kim, Jaewook,Kim, Jongwook 대한감염학회 2009 감염과 화학요법 Vol.41 No.5
Gemellae is a gram positive cocci that forms part of the oropharyngeal microflora in humans and is anaerobic to aerotolerant. Unlike the other members of the same genus, G. morbillorum rarely causes human infections. Recently, we experienced a case of tubo-ovarian abscess caused by G. morbillorum which was initially suspected to be actinomycosis associated with intrauterine device. This is the first case in the world on tubo-ovarian abscess with G. morbillorum as the culprit.