상처치료용 하이드로콜로이드 점착체의 제조 및 물성 분석

편도기,양경모,이서연,정동준 한국생체재료학회 2009 생체재료학회지 Vol.13 No.2

Hydrocolloid adhesives are unique in that they are inherently a pressure sensitive adhesive and also absorbent of body fluids. This important duality has led these materials to become key components in a number of medical device fields, in particular, wound care. In this study, the absorbency, fluid handling characteristics and other physical properties of hydrocolloid pressure sensitive adhesives were measured. Peel strength increased with the increase of tackifier. FHC and fluid retention increased with the increase of CMC, wetting agent. Fluid handling capacity and fluid retention of TL-HCD was better than Duoderm. The integrity of Comfeel, Duoderm and TL-HCD were 68.7, 79.3 and 74.7%, respectively. Cell viability of hydrocolloid used in this study was not significantly different from that of commercial hydrocolloid dressing materials.

Poly ( N - isopropylacrylamide ) 계 온도 / pH 민감성 IPN 의 팽윤 및 기계적특성

편도기,임영호,안정호,김덕준,이두성 한국고분자학회 1996 한국고분자학회 학술대회 연구논문 초록집 Vol.1996 No.4

New Energy - Absorbing Polyurethane Material

편도기,조우현,최윤소,최운철,이정남 한국고분자학회 1995 한국고분자학회 학술대회 연구논문 초록집 Vol.1995 No.10

신이식후 발생한 자가면역 용혈성 빈혈 1 예

편도철(Do Chul Pyun),김중경(Jung Kyoung Kim),공덕경(Deog Gyeong Gong),김태용(Tae Yong Kim),주운수(Woon Soo Joo),김홍기(Hong Khee Kim),이시래(Si Rhae Lee) 대한내과학회 1989 대한내과학회지 Vol.37 No.4

N/A Antibody formation against the A or B antigen in renal transp1antation resulting in autoimmune hemolytic anemia has been reported on rare occasions. We recently experienced a case of autoimmune hemolytic anemia in a blood group Rh+A male patient, who had received a kidney from his blood group Rh0 mother. He was maintained under immunosuppression with Cyclosporin-A and prednisolone. On days 12 to 13 posttransplantation, hemolysis developed. The Hb dropped from 9.6%/dl to 6.4%/dl, reticulocyte count was 3,0%, and peripheral blood smear showed spherocytosis. LDH was 580units and haptoglobin was 27 mg/dl. His direct Coomb`s test was positive with both anti-IgG and anti-complement. Anti-A was eluted from his serum. He was transfused with 2 units of compatible blood group Rh'0 washed RBCs without any incident. There was improvement of anemia after reducing Cs-A and adding azathioprine.

43<SUP>rd</SUP> Annual Review of Progress in Quantitative Nondestructive Evaluation (QNDE) 참관기

편도경,김종범 한국비파괴검사학회 2016 한국비파괴검사학회지 Vol.36 No.5

CT 환자누적선량 관리 프로그램의 효용성 연구

편도현(Do Hyeon Pyeon),이윤상(Yun Sang Lee),남진현(Jin Hyeon Nam),이준협(Jun Hyeop Lee),최기권(Gee Gwon Choi),조평곤(Pyong Kon Cho) 대한CT영상기술학회 2012 대한CT영상기술학회지 Vol.14 No.2

목적 CT 환자누적선량 관리를 위해서 검사 후 환자에게 영향을 미치는 유효선량 및 흡수선량을 관리하여 일정기간 동안의 누적선량을 분기 혹은 연간 권고치와 비교하여, 권고량 이상일 경우 의사처방 단계 및 CT검사 시 방사선량 주의 표시를 의료정보시스템과 연계할 수 있는 프로그램을 개발하여, CT 검사 시 표준 프로토콜 및 선량 저감화 프로토콜을 누적선량에 따라 선택적으로 적용함으로써, 환자 피폭선량 저감화에 기여할 수 있는 프로그램을 제안한다. 대상 및 방법 CT 환자누적선량 관리를 위해서 CT 장비에서 제공되는 CTDIvol과 DLP값의 신뢰도를 평가하기 위해서 본원의 임상조건을 적용하여 두부 및 전신용 팬텀과 ImPACT 프로그램을 이용한 선량측정 방법을 통해서 흡수선량과 유효선량을 비교하였고, 성인 및 소아의 연령대별 변환 인자를 DLP값에 대입하는 방법을 통해 유효선량을 비교 평가하였다. 결과 임상조건을 적용한 두부용 팬텀에서의 선량측정은 CTDIvol 35.8mGy, DLP 537mGyㆍcm, 복부용 팬텀에서는 CTDIvol 15.4mGy, DLP 616mGyㆍcm, ImPACT 프로그램에서는 두부에서 CTDIvol 41.1 mGy, DLP 617mGyㆍcm, 복부에서는 CTDIvol 18.8 mGy, DLP 752 mGyㆍcm, CT장비 표시 선량은 두부는 CTDIvol 42.0mGy, DLP 649 mGyㆍcm, 복부는 CTDIvol 17.2 mGy, DLP 951 mGyㆍcm로 나타났다. 또한, 유효선량 값은 두부용 팬텀에서는 1.12 mSv, ImPACT에서는 1.4mSv, CT장비는 1.36 mSv, 복부용 팬텀에서는 9.24 mSv, ImPACT에서는 12 mSv, CT장비에서는 14.2 mSV로 나타났다. 결론 본 연구의 CT환자누적선량관리 프로그램을 통해서 선량 저감화를 위한 적극적인 자세와 노력을 한다면 누적선량관리 프로그램의 효용성은 높을 것으로 생각한다. I. Purpose The purpose of this study is to propose a program that can manage the patient radiation dose of CT for active reduction in the radiation exposure of patient by devising a program where effective dose and absorbed dose that influence the patient are controlled after conducting the test far the management of patient radiation dose of CT, accumulated dose for certain period is compared with the recommended dose per quarter or year, and alert for radiation dose can be carried out in accordance with the medical information system in the stage of doctor’s prescription and CT test in case it has exceeded the recommended dose and selectively applying the standard protocol and radiation dose reduction protocol in accordance with the accumulated dose when conducting CT test. II. Meterial and Methods Materials and Method: In order to evaluate the reliability of CTDIvol and DLP value provided by CT equipment for the management of patient radiation dose of CT, absorbed dose and effective dose were compared through radiation dose measurement using head and whole body phantom and ImPACT program applying clinical conditions. Also, comparative evaluation of effective dose was carried out through method that substitutes conversion factors for each age group of adult and child to DLP value. III. Result In regards to dose measurement with the use of head phantom applying clinical conditions, CTDIvol of 35.8 mGy, DLP of 537 mGyㆍcm were displayed. In addition, CTDIvol of 15.4 mGy and DLP of 616 mGyㆍcm were displayed with the use of whole body phantom, In regards to ImPACT program, CTDIvol of 41.1 mGy and DLP of 617mGyㆍcm for head and CTDIvol of 18.8mGy and DLP of 752 mGyㆍcm for abdomen were displayed, In regards to CT modality, CTDIvol of 42.0mGy and DLP of 649mGyㆍcm for head and CTDIvol of 17.2mGy and DLP of 951 mGyㆍcm for abdomen were displayed Also, effective dose of head CT was revealed to be 1.12 mSv for phantom, 1.4 mSv for ImPACT, and 1.36 mSv for CT equipment and effective dose for Abdomen CT was revealed to be 9.24mSv for phantom, 12mSv for ImPACT, and 14.2mSv for CT equipment. IV. Conclusions Conclusion: Although no precise degree of danger or standard regarding the radiation exposure has been proposed through PDIS of CT in this study, I believe that the efficiency of PDIS for the reduction in radiation dose will be high when there is the willingness and effort to reduce the radiation dose with any means available.

자료 : Channel Tunnel-설계와 시공

편도권 ( T. K. Pyun ) 대한화약발파공학회 1995 화약발파 Vol.13 No.1

Channel Tunnel-설계와 시공

편도권 한국기술사회 1994 技術士 Vol.27 No.4

국방 지능형 플랫폼 기반체계 발전방향

편도후(Dohoo Pyeon),김성태(Sungtae Kim) 한국정보통신학회 2022 한국정보통신학회 종합학술대회 논문집 Vol.26 No.1

데이터가 디지털 전환을 위한 핵심자산으로 평가됨에 따라, 국방분야에서도 데이터의 효율적·안정적 관리와 원활한 공유, 그리고 데이터를 활용한 서비스 제공이 요구되고 있다. 이를 지원하기 위해 우리 군은 국방데이터 관리 기반체계인 국방 지능형 플랫폼 구축을 위한 초석을 마련하고 있다. 본고에서는 우리나라 및 주요 선진군의 데이터전략과 데이터 플랫폼 추진방향을 살펴보고, 주요 시사점과 함께 우리군의 국방 지능형 플랫폼 발전방향을 제시하였다. 이를 통해 안전하고 효율적인 우리 군의 국방데이터 관리 기반체계 구축에 기여할 수 있기를 기대한다. As data is evaluated as a key asset for digital transformation, efficient and stable management of data, smooth sharing data, and provision of services using data are also required in the defense. To support this, the Korean military is laying the foundation for the Military Artificial Intelligence Platform which is a defense data management infrastructure. In this paper, we examine the data strategies and data platform promotion directions of Korea and major advanced groups, and we look for suggestion and present the direction of development of the Military Intelligent Platform. We are expected that it can contribute to the establishment of a safe and efficient defense data management infrastructure for the Korean military.

신이식 100예에서 이식신의 예후에 영향을 미치는 인자

편도철(Do Chul Pyun),정인권(In Kweon Jung),임창범(Chang Bum Lim),양영란(Young Ran Yang),임정식(Jeong Sik Lim),김종진(Jong Jin Kim),하봉준(Bong Jun Ha),김홍기(Hong Khee Kim),이시래(Si Rhae Lee),이승도(Sung Do Lee),류현열(Hyun Yul Rhew 대한내과학회 1989 대한내과학회지 Vol.37 No.5

N/A It has been reported that many factors other than HLA and the mode of immunosuppression influence the results of renal transplantation. The factors are constantly changing with the advances in surgical techniques and introduction of Cyclosporin-A s-A), etc. We analyzed the possible prognostic factors in 100 cases of renal allograft which were performed by the transplantation team of Kosin Medical College from Dec. 1984 to Aug. 1988. Detailed results are presented for the several factors as follows: 1) HLA and the mode of immunosuppression. Excluding 9cases of graft failure due to non-immunological causes, the actuarial graft survival in 3 years was 100% in the E3LA-II) group, 95.1% in the HLA-HID group and 84.6% in the LUR group. In the HLA-HID group, the 3 year graft survival (3YGS) was 96.8% in the Cs A+P treated group and 93.3% in the Aza+P treated group, and the difference in these 2 groups was not significant statistically (p>0.1). Numbers of patients with serum creatinine equal or above 2 mg/dl were 5 of 17cases (29.4%) in the Aza+P treated HLA-HID group, and 8 of 47cases (17.1%) in the Cs-A+P treated HLA-HID group, but the difference was not significant statistically (p>0.1). 2) Pretransplant transfusions. Twenty-seven cases which were transfused with more than 10 units of packed red cells were 100% in 3YGS and the other cases were 97.8% in 3YGS, And there was no significant difference between Aza+P and Cs A+P treated HLA-HID groups in relation to transfusion (p>0.1), 3) Donor and recipient age. The 3YGS in donors older than 50 years and in those 50 years old and under were 93.796 and 94.895, respectively, The percentages of cases with serum creatinine equal or above 2mg/dl were 26. 5% in the older than 50 years group and 12.3% in the other group, but the difference was not significant statistically (p>0.1). Thirteen cases older than 60 years were 10096 in 3YGS. Recipient age had no significant effect on 3YGS between the older than 50 years group and the other group (p>0.1). 4) Donor and recipient sex. The 3YGS was highest (100%) in the male to male group and lowest (87.5%) in the male to female group, but the difference was not significant in these 2 groups (p>0.1). 5) Minor ABO incompatibility. Seventeen cases with minor ABO incompatibility were 100% in 3YGS, and in remaining compatible 74 cases, the 3YGS was 93.4% and there was no significant difference (p>0.1). In summary, the 3YGS was higherst in the HLA-ID group, and there was no signifcant difference in 3YGS between Aza+P and Cs A+P treated HLA-HID groups. And the elder (more than 50 years or 60 years) donor group did not show lower 3YGS than the younger age group despite somewhat worse graft function. There appears to be a minimal effect with mismatch of sex and minor ABO incompatibility. And the fact that there is no significant relation between pretransplant transfusion and 3YGS seems to be due to DST, which was done in all cases except HLA-ID and 2cases of the HLA-HID group.