http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이호영,강보경,이호창,허영우,김정주,김재육,이준형,Lee, Ho-Young,Kang, Bo-Kyung,Lee, Ho-Chang,Heo, Young-Woo,Kim, Jeong-Joo,Kim, Jae-Yuk,Lee, Joon-Hyung 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.5
In the $(La_{0.8}Ca_{0.2})(Cr_{0.9}Co_{0.1})O_3$ (LCCC), which has been using as interconnector materials in SOFC, Al ions were substituted for Co because ionic radius of Al is similar to that of Co. Because of the almost identical ionic radius of Al and Co, the substitution was not thought to be affect the tolerance factor of LCCC, and the densification behavior, high temperature electrical conductivity and thermal expansion coefficient were examined as a function of Al concentration. In the cases of the x= 0 and x= 0.02 in $(La_{0.8}Ca_{0.2})(Cr_{0.9}Co_{0.1-x}Al_x)O_3$ (x= 0~0.1), the samples showed the relative densities above ${\geq}95%$ when those were sintered at ${\geq}1,350^{\circ}C$. In the case of the $x{\geq}0.06$ the sintered density deteriorated greatly at lower sintering temperatures. High temperature electrical conductivity of the samples decreased as the content of Al increased. Since the valence state of Al ion is unchangeable, while Cr or Co ions contribute to the electrical conduction by changing those valence states, Al substitution resulted in the decreased electrical conductivity. Al doping of LCCC was an effective way of decreasing the thermal expansion coefficient (TEC).
답차 및 자전거 Ergometer 운동부하검사의 비교관찰
김경호(Kyung Ho Kim),황중하(Joong Hwa Hwang),이주형(Joo Hyung Lee),배현혜(Hyun Hae Bae),이호영(Ho Young Lee),김용민(Yong Min Kim),김현수(Hyeon Su Kim),이순규(Soon Gyu Lee),이병기(Byung Ki Lee),이중기(Choong Ki Lee),박희명(Hi Myung Pa 대한내과학회 1995 대한내과학회지 Vol.49 No.4
N/A Objectives: For the evaluation of cardiopulmonary endurance, treadmill (TM) and bicycle ergometer (EG) are the most commonly used modes of exercise testing, and the results obtained by these two modes are known to be different. However, it is still controversial that which parameters are how much different. The purpose of our study is to compare two modes of testing in healthy subjects. Methods: Sixty-nine healthy subjects consisting of 34 males and 35 females participated in the study. All the subjects underwent symptom-limited maximal exercise tests by both TM and EG modes at an interval of less than seven days. The TM tests were done by Bruce protocol in both genders, and in the EG tests, work load was increased by 25 watts once every minute for males and 15 watts for females. Results: The maximal heart rate, oxygen uptake and oxygen pulse (HR max, VO2 max & O2 pulse max) by the TM mode of testing were significantly greater than those by the EG mode in both genders, particularly in females. The differences in HR max were approximately 7% and 9% in males and females, respectively, whereas those in VO2 max and O2 pulse max were 11-25%. The VO2, max by TM and EG modes showed highly significant correlation. At maximal exercise, the minute ventilation was significantly different between the two modes, and VE by the TM mode was approximately 15% and 22% greater than by the EG mode in males ad females, respectively. Among variables reflecting ventilatory reserves at maximal exercise, the ratio of VE. max to maximal voluntary ventilotion (MVV) in ;he TM mode was approximately 15% and 22% greater in males and females, repectively. The breathing reserve (MVV-VE max) in the EG mode was approximately 79% and 147% greater in males and females, repectively. The results of these two variables, VE max/MVV and MUV-VE max, are explained by the more marked increase in VE max by the TM mode and denote that the ventilatory reserve capacity at maximal exercise is greater in the EG mode. Conclusion: Our study reveals that the TM mode of maximal exercise testing induces more pronounced cardiopulmonary responses than the EG mode, particularly in females. And this is well manifested by the facts that VO2 max, O2. pulse max and VE- max obtained by the TM mode of testings are 10% or more than those by the EG mode. The HR max by the TM mode was also greater than that by the EG mode in both genders, but its difference was less than 10%.
이주형(Ju Hyung Lee),이호영(Ho Young Lee),김현수(Hyeon Su Kim),김인기(In Ki Kim),이중기(Choong Ki Lee),손경락(Kyung Rak Sohj),문세광(Sac Kwang Moon) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.1
Multiple lymphomatous polyposis(MLP) of the gastrointestinal tract is a rare form of gastrointes- tinal lymphoma. Clinical, histopathologic, and immunohistochemical findings are somewhat different from those of primary gastrointestinal lymphoma. Therefore, it is important to recognize this rare form of gastrointestinal lymphoma for its prognostic and therapeutic implications. We report a case of MLP of descending colon, sigmoid colon and rectum in 56 years old man who has a soft tissue mass in right middle abdomen with a review of literature. He was treated with 6 cycles of CHOP regimen resulting in good clinical remission. (Korean J Gastroenterol 1996; 28:118 - 123)
이호영 ( Ho Young Lee ),구남형 ( Nam Hyung Koo ),김원식 ( Won Sik Kim ),김병엽 ( Byoung Yeop Kim ),정순홍 ( Snons Cheong ),김영준 ( Young Jun Kim ) 한국지구물리·물리탐사학회 2013 지구물리와 물리탐사 Vol.16 No.4
해양지질 조사 또는 엔지니어링 목적의 해양 탄성파 탐사에서 해상의 너울로 인하여 탐사자료의 품질이 저하된다. 1 ~ 2 m의 너울은 탐사 중에 종종 발생하는데, 1 m 이내의 정밀도를 요하는 고해상 해저탐사자료에서 이를 보정하여 줌으로써 탄성파 단면도의 수평적 연속성을 높일 수 있다. 이 연구에서는 8채널 고해상 에어건 탐사자료와 3.5 kHz천부지층탐사자료에 대하여 너울영향 보정을 적용하였다. 너울영향을 효율적으로 보정하기 위해서는 탐사자료에 나타나는 해저면의 위치를 정확하게 산출하는 것이 중요하다. 이 연구에서는 해저면 수심값 추출을 위하여 해저면 부근의 최대진폭을 이용하거나 최대진폭값의 일정 기준을 넘어서는 지점을 해저면 위치로 추출하는 방법 등을 사용하였다. 품질이 낮은 자료에 대해서는 수심값 추출이 용이하도록 엔벨로프 또는 해저면 요소파(wavelet) 신호와 상호상관을 수행한 자료를 사용하였다. 이와 같은 방법으로 산출한 수심값으로부터 평균값을 구한 후, 그 차이를 보정하여 주었다. 시험 적용된 에어건 탐사자료에서는 약 0.8 m, 2종의 3.5 kHz 천부지층탐사자료에서는 각각 약 0.5 m와 약 2.0 m 범위의 너울영향을 보정하였다. 자료의 상태에 따라 적절한 해저면 수심값 추출 방법을 사용하여 탐사자료의 너울 영향을 보정함으로써 지층의 연속성이 향상된 고품질의 고해상 해저 탄성파 단면도를 제작할 수 있었다. The seismic data quality of marine geological and engineering survey deteriorates because of the sea swell. We often conduct a marine survey when the swell height is about 1 ~ 2 m. The swell effect correction is required to enhance the horizontal continuity of seismic data and satisfy the resolution less than 1 m. We applied the swell correction to the 8 channel high-resolution airgun seismic data and 3.5 kHz subbottom profiler (SBP) data. The correct sea bottom detection is important for the swell correction. To detect the sea bottom, we used maximum amplitude of seismic signal around the expected sea bottom, and picked the first increasing point larger than threshold value related with the maximum amplitude. To find sea bottom easily in the case of the low quality data, we transformed the input data to envelope data or the cross-correlated data using the sea bottom wavelet. We averaged the picked sea bottom depths and calculated the correction values. The maximum correction of the airgun data was about 0.8 m and the maximum correction of two kinds of 3.5 kHz SBP data was 0.5 m and 2.0 m respectively. We enhanced the continuity of the subsurface layer and produced the high quality seismic section using the proper methods of swell correction.
장기 투석치료 환자에서 투석유형별 임상지표에 관한 비교연구
이호영(Ho Yung Lee),함영환(Young Hwan Ham),윤여운(Yoe Wun Yoon),김형길(Hyung Kil Kim),정동균(Dong Kyoon Chung),최규헌(Kyu Hun Choi),한대석(Dae Suk Han) 대한내과학회 1989 대한내과학회지 Vol.36 No.2
N/A We investingated 71 cases with ESRD who had undergone CAPD or hemodialysis for more than 2 years without diabetic nephropathy, and the following results were obtained: 1. The mean age and male to female ratio for the patients in the hemodialysis group (n:38) were 50 and 2.8;1, respectively. The mean age of the CAPD group (n:33) was 43 and the male to female reatio was 1,2:l. The mean duration of dialysis in hemodialysis and CAPD was 3.6 and 2.9 years, respectively. 2. Hypertension and anemia associated with ESRD were more easily controlled in the CAPD patients than in the hemodialysis group. So, after 3 months of dialysis, both the systolic and diastolic blood pressures were lower in the CAPD group(p<0.05) The average value of annual transfusion requirements in hemodialysis patients was 1.9 pints and that in CAPD patients was 0.35 pints. 3. Values of BUN, serum potassium and CO, content were more stable in the CAPD group as compared to hemodialysis patients after 3 months of dialysis, However, serum cholesterol, triglyseride and HDL - cholesterol values were significantly higher in the CAPD group than in hemodialysis patients(p<0.05), 4 The number of days spent in the hosjpital during dialysis was longer in the CAPD group, probably due to peritonitis The annual duration of hospitalization per patient in the CAPD group was 6.3 days as compared to 1.9 days in hemodialysis patients, 5 The quality of life of the CAPD group, as assessed by the physical performance status, was superior to that of the hemodialysis group Based on these results, although CAPD still has the unsolved problems of a longer duration of hospitalization and hyperlipidemia, it seemed to have many advantages in controlling hypertension, electrolyte imbalance, acidosis and anemia Therefore it could be employed as a primary mode of treatment in ESRD patients, especially in Korea with shortage of hemodialyeis machines.
해저면 신호가 약한 천부해저지층 탐사자료의 너울영향 보정
이호영 ( Ho-young Lee ),구남형 ( Nam-hyung Koo ),김원식 ( Won Sik Kim ),김병엽 ( Byoung-yeop Kim ),정순홍 ( Snons Cheong ),김영준 ( Young-jun Kim ),손우현 ( Woo Hyun Son ) 한국지구물리·물리탐사학회 2015 지구물리와 물리탐사 Vol.18 No.4
3.5 kHz 또는 첩(chirp) 천부해저 지층탐사는 해양지질 조사나 엔지니어링 탐사에 널리 사용되고 있다. 그러나 해상에서의 너울은 탐사자료의 품질을 저하시킨다. 이와 같은 너울의 영향을 보정함으로써 연속성이 향상된 탐사자료를 얻을 수 있다. 정확한 해저면의 위치 선정은 너울영향 보정에 매우 중요하다. 이 연구에서는 원자료와 이를 엔벨로프 또는 에너지비율자료로 변형시킨 자료들에 대해 최대 진폭값의 일정 기준을 초과하는 지점을 선정하는 방법으로 해저면 위치 선정을 시도하였다. 그러나 파도의 잡음으로 인하여 해저면 신호가 분명하지 않은 품질이 낮은 자료에서는 개별 트레이스에서의 자동적인 해저면 위치 선정이 어려웠다. 이 연구에서는 이전 트레이스에서 구한 해저면 평균값을 고려하여 해저면 선정범위 내에서 해저면을 선정하는 방법과, 선정 결과의 신뢰도가 낮은 경우에는 이를 보정에서 제외하는 방법을 사용함으로써 품질이 낮은 자료의 해저면 선정에서도 만족스러운 결과를 얻었다. 개별 트레이스에서 해저면을 선정할 때에는 에너지비율자료를 사용한 경우에 오류가 가장 적었으며, 이전 트레이스 해저면 평균값을 고려하는 방법에서는 원자료를 직접 사용한 경우에 보정결과가 비교적 양호하였다. A 3.5 kHz or chirp sub-bottom profiling survey is widely used in the marine geological and engineering purpose exploration. However, swells in the sea degrade the quality of the survey data. The horizontal continuity of profiler data can be enhanced and the quality can be improved by correcting the influence of the swell. Accurate detection of sea bottom location is important in correcting the swell effect. In this study, we tried to pick sea bottom locations by finding the position of crossing a threshold of the maximum value for the raw data and transformed data of envelope or energy ratio. However, in case of the low-quality data where the sea bottom signals are not clear due to sea wave noise, automatic sea bottom detection at the individual traces was not successful. We corrected the mispicks for the low quality data and obtained satisfactory results by picking a sea bottom within a range considering the previous average of sea bottom, and excluding unreliable big-difference picks. In case of trace by trace picking, fewest mispicks were found when using energy ratio data. In case of picking considering the previous average, the correction result was relatively satisfactory when using raw data.
지속성 외래 복막투석 환자의 합병증 및 생존율에 관한 임상적 고찰
김형직(Hyung Jik Kim),하성규(Sung Kyu Ha),최규헌(Kyu Hun Choi),이호영(Ho Yung Lee),한대석(Dae Suk Han),김문재(Moon Jae Kim) 대한내과학회 1989 대한내과학회지 Vol.37 No.3
N/A From March 1983 through August 1987, 140 patients with end stage renal disease of various causes were treated by continuous ambulatory peritoneal dialysis(CAPD). The following results were obtained: 1) Peritonitis was the most common complication and the incidence was 1 episode/8.9 patient-months. 2) The positive rate in gram stain or culture of peritoneal dialysate was 31.3%, of which 35.6% was Staphylococcus epidermidis. 3) Peritonitis incidence according to the peritoneal dialysis solution used showed 1 episode/11.2 patient-months with Dianeal® and 1 episode/7.0 patient-months with Peritosol®. 4) The catheter was removed in 12.4% of all patients. The most common cause for catheter removal was peritonitis, which accounted for 76.5% of cases. 5) Patient survival and technical success rates at the end of the first year were 93.3% and 90.7% respectively. 6) Peritonitis incidences were 2.27 episodes/patient/ year in 1983, 0.98 episodes/patient/year in 1984, 1.01 episodes/patient/year in 1985, 1.39 episodes/patient/ year in 1986, and 1.32 episodes/patient/year in 1987. Peritonitis still remains the most frequent complication of continuous ambulatory peritoneal dialysis(CAPD). In order to reduce its incidence, further efforts are required.
EPO 사용이 없었던 말기신부전으로 혈액투석 중인 환자에서 발생한 적혈구증가증
김형종 ( Hyung Jong Kim ),이동형 ( Dong Hyung Lee ),류동열 ( Dong Ryeol Ryu ),유태현 ( Tae Hyun Yoo ),최훈영 ( Hoon Young Choi ),정준원 ( Jun Won Jeong ),강신욱 ( Shin Wook Kang ),최규헌 ( Kyu Hun Choi ),이호영 ( Ho Yung Lee ) 대한신장학회 2005 Kidney Research and Clinical Practice Vol.24 No.4