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배중원(Joong-Won Bae),송재훈(Jae-Hoon Song),전향식(Hang-Sig Jeon),남기욱(Gi-Wook Nam),이한성(Han-Seong Lee) 한국항공우주연구원 2006 항공우주기술 Vol.5 No.2
위성항법시스템(GNSS)을 민간항공 분야에 활용하기 위해서는 국제민간항공기구가 정한 비행단계별 정확성(Accuracy), 무결성(integrity), 연속성(continuity), 가용성(availability) 요구조건을 만족시켜야 한다. 본 논문에서는 GBAS, GRAS 등 지상기반 위성항법보강시스템 개발에 활용될 수 있는 GNSS 원격 무결성 감시시스템을 제안하고 개발결과에 대해 기술 한다. GPS 수신기와 안테나로 구성된 위성신호 수신장치는 RS-232 to TCP/IP 프로토콜 변환장치를 통해 데이터 처리 및 분석을 수행하는 신호처리장치의 Host PC에 연결되도록 설계되었다. 이는 GPS 수신기의 설치 위치 제한을 극복하고 수신기와 안테나 간의 물리적 거리를 줄일 수 있어 CPS 수선 신호의 열화를 방지할 수 있는 방법이다. CPS 데이터를 수신하여 처리하는 신호처리장치는 실시간 운용 및 후처리 운용이 가능하며 GBAS CAT-I 급의 무결성 알고리즘과 차분보정 정보 생성을 지원하는 개발 환경을 제공한다. GNSS is a satellite-based radio navigation aid. For using it in civil air navigation area, any GNSS service should meet the requirements of accuracy, integrity, continuity and availability in each flight phase established by ICAO. In this study, a remote integrity monitoring system(RIM3) for GNSS are proposed and explained to utilize it in the design of GNSS augmentation system such as GBAS and GRAS. The RIM5 consists of signal-in-space receiving subsystem and signal processing subsystem Each as receiver is connected to Host PC by the serial to ethernet converting device which is able to convert serial port connection to LAN port connection in order to exchange information via the internet. We can overcome the siting limitation of as receiver and antenna, and reduce signal loses in the cable between as antenna and receiver. This system is providing the development environment for GBAS CAT-I system.
S-8 Comparison of tenofovir versus entecavir therapy in nucleos(t)ide-naive chronic hepatitis B
( Boram Min ),( Joong Gi Bae ),( Hyun Seong Lee ),( Young Min Shin ),( Kyung Hye Park ),( Byung Uk Lee ),( Jae Ho Park ),( Byung Gyu Kim ),( Seok Won Jung ),( In Du Jeong ),( Sung-jo Bang ),( Jung Woo 대한내과학회 2016 대한내과학회 추계학술발표논문집 Vol.2016 No.1
Backgrounds:?Entecavir (ETV) and tenofovir (TDF) are nucleoside analogues with high potency for profound and durable viral suppression and genetic barriers against resistance; these drugs are recommended for the first-line treatment of chronic hepatitis B (CHB) in current guidelines. But rare data are available on the comparison of TDF and ETV therapy in CHB patients with baseline high viral load (HVL), defined as having hepatitis B virus (HBV) DNA >8 log10 copies/mL (7.3 log10 IU/mL).?Methods:?We performed a retrospective analysis of the efficacy of TDF therapy, as compared to that of ETV therapy, in patients with HVL. A matched study population was constructed to compare the antiviral efficacy of TDF therapy and ETV therapy by a propensity score analysis. The primary endpoint was a virological response (VR), defined as an HBV DNA level of <12 IU/mL.?Results:?Three hundreds two patients were selected after matching propensity score with 1:1 ratio. VR was observed in 66.2% (100/151) of patients in the TDF group and in 63.6% (96/151) of the patients in the ETV group. The VR rates were not different between the two groups (78.1 vs. 76.2% at month 12, and 99.0 vs. 95.8% at month 24; log rank p=0.432). During therapy, 74.8% of patients in the TDF group, and 70.2% of patients in the ETV group had partial VR, respectively (p=0.367). ALT normalization rates also did not differ between both the treatment groups (94.2% and 92.1% in the TDF and ETV therapy groups, respectively; p=0.476). During therapy, 13.7% (18 of 131) of patients in the TDF group, and 21.2% (28 of 132) of patients in the ETV group achieved HBeAg seroconversion, respectively (p=0.111). Nineteen patients experienced a virological breakthrough. Among them, twelve patient (7.9 %) was in the TDF group and 7 patients (4.6 %) were in the ETV group (p=0.236). Conclusions:?In patients with a baseline HBV DNA level >8 log10 copies/mL (7.3 log10 IU/mL), TDF therapy was as effective as ETV therapy, in maintaining the viral suppression.
S-137 Comparison of tenofovir therapy between nucleos(t)ide-naive and -resistant chronic hepatitis B
( Dahye Kim ),( Joong Gi Bae ),( Hyun Seong Lee ),( Young Min Shin ),( Kyung Hye Park ),( Byung Uk Lee ),( Jae Ho Park ),( Byung Gyu Kim ),( Seok Won Jung ),( In Du Jeong ),( Sung-jo Bang ),( Jung Woo 대한내과학회 2016 대한내과학회 추계학술발표논문집 Vol.2016 No.1
Background:?Tenofovir (TDF) is a nucleotide analog used in the treatment of chronic hepatitis B (CHB) infection regardless of whether nucleos(t)ide (NA) resistance. Little data are available on the comparison of TDF therapy between NA-naive and NA-resistant chronic hepatitis B (CHB) patients.?Methods:?Of the 735 eligible patients, 466 were NA-naive and 269 were resistance to NA therapy prior to TDF rescue therapy. A matched study population was constructed to compare the antiviral efficacy of TDF therapy by a propensity score analysis. The primary endpoint was a virological response (VR), defined as an HBV DNA level of <12 IU/mL.?Results: Two hundreds fifty-four CHB patients were selected after matching propensity score with 1:1 ratio. VR occurred in 204 patients (111 patients belonged to the NA-naive group and 93 patients belonged to the NA-resistant group) during the treatment period. There was statistically significant difference in VR between the NA-naive group and the NA-resistant group (87.4% vs. 73.2%; p=0.005). Partial virologic response rates were also differ between both groups (37.8% and 55.1% in the NA-naive group and the NA-resistant group, respectively; p=0.006). ALT normalization rates did not differ between both groups (91.0% and 93.0% in the NA-naive group and the NA-resistant group, respectively; p=0.770). During TDF therapy, 17.5% (14 of 80) of patients in the NA-naive group, and 13.0% (10 of 77) of patients in the NA-resistant group achieved HBeAg seroconversion, respectively (p=0.432). Multivariate logistic regression analysis using selected baseline factors identified absolute HBV-DNA levels at baseline (p<0.001; OR, 0.755; 95% CI, 0.683-0.834), NA-resistant group (p<0.001; OR, 1.655; 95% CI, 1.249-2.194), and HBeAg positivity (p<0.001; OR, 0.531; 95% CI, 0.383-0.737) as factors showing significant association with VR.?Conclusions:?TDF therapy would be more superior in NA-naive patients than NA-resistant chronic hepatitis B patients. The lower HBV DNA levels at baseline and HBeAg-negative CHB patients also were significantly associated with virologic response.
장기간 규칙적인 복합운동이 농촌 노인의 신체구성 및 SFT 요인에 미치는 영향
이중철(Lee, Joong-Chul),박창운(Park, Chang-Woon),박재용(Park, Jae-Young),배종진(Bae, Jong-Jin),박기덕(Park, Gi-Duck) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.5
This study was conducted to investigate the effect of long-term combined exercise program on general characteristics, muscle strength and muscle function of 1284 elderly(men 374, women 910) living in rural areas. The conclusions of this study are as follows:<br/> 1. Factor in body composition body fat, BMI, body fat for both men and women in the exercise program, according to the application showed that the difference between time (p<.01). <br/> 2. Upper and lower strength for both men and women between the time of measurement was increased significantly(p<.01). Flexibility is improved in both men and women showed that between the time of measurement. Upper extremity flexibility, the women were higher than men(p<.01) and the flexibility of lower extremity was higher in men than in women(p<.05). In addition, depending on gender and the time of measurement, and the difference was statistically significant (p<.01). Balance in both men and women, depending on the time of measurement was improved significantly(p<.01). And even general endurance of the men and women (men<women) was significantly higher(p.<01). From these results, it suggested that combined exercise program using a long-term of stretching, resistance exercise and the dance sport have a crucial role for daily life and physical activity of older people n rural elderly by improving of muscle strength and function.