서울 및 경기도 지역 주민에서의 B형 간염항원에 대한 조사(제4보)

임병욱 대한미생물학회 1982 大韓微生物學會誌 Vol.17 No.1

To investigate the annual distribution of hepatitis B surface antigen (HBs Ag) in healthy adults, this study vras performed by rneans of counter-imrnunoelectrophoresis with sera obtained from 4,856 healthy adults who reside in Seoul and Gyunggi-Do area from January to December, 1981. The experimental procedures were same with the previous reports. The subjectives were consisted of two groups: one is mass life group (3, 853 adults) and the other, home life group (1,003 adults), The resu1ts were as follows: 1. Among the 4,856 cases tested, 326 cases (6.71%) showed HBs Ag positive. HBs Ag positive rates in the group of mass life and home life were 6.51% and 7.48%, respectrvely. 2. It showed slightly high positive rates in the home life and long terrn duration group, and upper class group showed slightly high positive rate. 3. In seasonal variation, it showed relatively high positive rate (7.38%) in winter, and A blood group showed higher rate (7.60%) than the other blood groups. And then, boundary area of Seoul city showed slightly high positive rate (7.36%) in areal distribution.

내시경적 역행성 담췌관조영술상 특이한 모양을 보인 담관 Cast 1예

임병욱,김해경,채선애,유광렬,김구영,권영우,허병원,김호정,이성구,김명환 대한소화기내시경학회 2003 Clinical Endoscopy Vol.27 No.4

Cast formation of biliary sludge leading to obstruction and cholangitis have been reported in patients who received orthotopic liver transplantation. The pathogenesis of biliary cast after orthotopic liver transplantation appeared to be multifactorial. Cold ischemic damage, immunologic attack to the bile duct and bile stasis may have played a role. On the other hand, only three cases of biliary cast have been reported in non-transplanted patients. We described the successful endoscopic removal of this complication in a 70-year-old man whose biliary sludge aggregated into firm casts occupying the extrahepatic ducts which has been developed after cholecystectomy and segmentectomy for intrahepatic cholangiocarcinoma. We speculated on the hemolysis and prolonged fasing as the initiating events but the exact pathogenesis of biliary cast remains to be clarified. (Korean J Gastrointest Endosc 2003;27:254-257) 담관 cast는 담관 오니(sludge)가 담관의 형태를 따라 원주 모양의 종괴를 형성한 것으로 주로 간이식 후에 호발하며 임상적으로 담관 폐쇄와 담관염을 일으킬 수 있다. 이러한 담관 cast의 병인은 여러 가지가 있는 것으로 생각되며 담즙 정체나 면역학적인 공격에 의한 담관 상피의 손상이 주된 요인으로 알려져 있으나 정확한 기전에 대해서는 더 연구가 필요하다. 간이식을 하지 않고 담관 cast가 발생된 예는 매우 드문 경우로 최근 저자들은 말초 담관암으로 간구역절제술과 담낭절제술을 받으며 수술 전후로 농축적혈구 10단위를 수혈 받은 환자에서 발생한 담관 cast를 내시경적 역행성 담췌관조영술로 발견하고 제거하였기에 이를 문헌고찰과 함께 보고하는 바이다.

포스터 전시 발표 : 소화기 ; 장중첩증을 보인 원발성 소장 악성 섬유성 조직구종 1예

임병욱,류웅,이상은,노재욱,손현배,양전호,김경아,이준성,문영수,김한성,이우진 대한내과학회 2003 대한내과학회 추계학술대회 Vol.65 No.10

서울 및 경기도 지역 주민에서의 B형간염 항원에 대한 조사(제3보)

임병욱 大韓免疫學會 1981 大韓免疫學會誌 Vol.3 No.1

To investigate the annual distribution of hepatitis B surface antigen (HBs Ag) in healthy adults, this study was performed by means of counter-immunoelectrophoresis'with sera obtained from 4,145 healthy adults who reside in Seoul and Gyunggi-Do area from January to December, 1980. The experimental procedures were same with the previous reports. The subjectives were consisted of two groups: one is mass life group (3,152 adults) and the other, home life group (993 adults). The results were as follows; 1. Among the 4,145 cases tested, 283 cases (6.83%) showed HBs Ag positive. HBs Ag positive rates in the group of mass life and home life were 6.69% and 7.25%, respectively. 2. Whereas the positive rate of HBs Ag in the aspect of the differencies of mass life duration was not significant, upper class group showed slightly high positive rate. 3. In seasonal variation, it showed relatively high positive rate (8.5%) in spring, and AB blood group showed higher rate (7.87%) than the other blood groups. And then, western seaside area in Gyunggi-Do showed slightly high positive rate (7.5%) in areal distribution.

초협대역 환경에서 영상전송 및 표적탐지를 위한 영상압축 전처리 방법에 대한 연구

임병욱,백승호,전기남,김도경,정주현,김대식,Im, Byungwook,Baek, Seungho,Jun, Kinam,Kim, Dokyoung,Jung, Juhyun,Kim, Daesik 한국군사과학기술학회 2020 한국군사과학기술학회지 Vol.23 No.1

Due to the continued demand for high-definition video, video compression technology is steadily developing and the High Efficiency Video Coding standard was established in 2013. However, despite the development of this compression technology, it is very difficult to smoothly transmit VGA-level videos in Ultra-narrowband environments. In this paper, the target information preprocessing algorithm is presented for smooth transmission of target images moving in forest or open-terrain in Ultra-narrowband environment. In addition, for algorithm verification, the target information preprocessing algorithm was simulated and the simulated results were compared with the video compression result without the algorithm being applied.

수중 통신시 다중경로 적응 BISMO (Bi-Switch Modulation)알고리즘 설계

임병욱,심태보,Im, Byung-Ook,Shim, Tae-Bo 한국음향학회 2008 韓國音響學會誌 Vol.27 No.7

Multipath makes clear message transfer difficult in the underwater communication. To solve this problem, we propose a new method producing proper MFSP (Modulation Frequency Shift Period) which could be obtained by calculating time delay caused by different path from a transmitter to a receiver. At the transmitter end, messages were divided according to the size of the MFSP and transmitted accordingly alternating Frequency. At the receiver end, the received messages were demodulated in order to recover the original message by the adaptive BISMO algorithm which is constructed at the algorithm design stage. Adaptive MFSP and estimated BER (Bit Error Rate) were calculated through simulation test. 수중통신 시 다중 음파 경로의 생성은 명확한 메시지전송을 어렵게하는 원인중 하나이다. 본 논문에서는 이러한 문제점의 해결을 위하여 각기 다른 경로에 따라 형성된 다중 경로간의 지연 시간을 계산하여 변조주파수변환구간을 생성하는 방법을 제안하였다. 송신단에서는 생성된 변조주파수변환구간의 크기에 따라 메시지를 분할하여 두 개의 주파수를 사용하여 QPSK(Quadrature Phase Shift Keying)방식을 교대로 호핑하여 메시지를 전송 하였다. 이에 대응하여 수신단에서는 수신된 메시지를 알고리즘 설계 시 구축한 프로토콜에 의하여 복조하여 원신호로 복원하는 적응 BISMO 알고리즘을 제안 하였고 모의실험을 통하여 적응적 변조주파수변환구간, 추정 오류율을 계산하였다.

표층 해상의 기포가 음파전달에 미치는 영향

임병욱,심태보,김영규,박정수,Im, Byun-Kook,Shim, Tae-Bo,Kim, Young-Gyu,Park, Joung-Soo 한국음향학회 2009 韓國音響學會誌 Vol.28 No.3

해양에서는 파도, 빗방울 등 해수면에 일어나는 많은 물과 물의 충돌, 해양에서 운행되는 선박, 여러 해양 생물들의 생명활동 그리고 여러 발생 원들에 의해 많은 기포들이 생성될 수 있다. 이렇게 생성된 기포들은 해양에서 사용되는 음파의 세기와 음속에 영향을 미치게 된다. 본 연구에서는 2007년 9월 19일 04:00 부터 17:00 까지 남해 남형제도 해역에서 Acoustic Bubble Spectrometer (ABS)와 CTD를 사용하여 해양 기포생성과 생성기포가 음파에 미치는 영향을 관측하였다. 관측자료를 통하여 풍속과 기포생성의 연관성, 기포의 반경에 따른 기포량, 주파수별 음속비를 분석하였다. 최종적으로 분석자료를 통해 기포가 음파전달에 미치는 영향을 모의하였다. The bubbles are created by waves, raindrops, water collision, vessels sailing at sea, life activities of various marine organisms in the ocean and other sources. The bubbles affect the intensity and sound speed of acoustic waves in the ocean. We indirectly observed bubbles in order to understand the creation of and the effects of bubbles on sound waves, using an Acoustic Bubble Spectrometer (ABS) and CTD, from 04:00 to 17:00, 19 September, 2007. We also analyzed the correlation of wind speed and the generation of bubbles, the amount of bubbles, and the sound speed variation at 50, 60, and 70 kHz. Finally, We simulated the way how bubbles affect sound transmission based on the analysis results.

지하철.외1편

임병욱 중앙대학교 예술대학 문예창작학과 1991 창작문화 Vol.8 No.-

SPIO를 사용한 자기공명영상의 적정 Parameter 비교에 관한 고찰

임병욱,김세영,김윤국,김성식,조병권 대한방사선사협회 1998 대한방사선사협회지 Vol.24 No.2

단일항체를 이용한 한국형출혈열의 병인성 연구

임병욱,김금용,유문간,김태규 대한미생물학회 1987 大韓微生物學會誌 Vol.22 No.1

Hantaan virus(HV) 76-118 strain was inoculated into suckling ICR mice by intra-nasal route with an inoculum of 10LD_(so). Mortality was 65% at the 3rd week after inoculation, but declined to 35% at the 4th week. Infectivity was determined hy the measuring immuno-fluorescent antibody in sera. The peak of infectivity was 80% at the 4th week after inoculation. Viremia was reached peak level of 1.7×10^4 PFU/ml by day 10. Immunofluorescent antibody and neutralizing antibody appeared by 2 weeks and 15-17 days respectively, but achieved similar titer by 35 days. By using a monoclonal antibody to HV 76-1l8, viral antigens were initially detected in inguinal and axillary lymph node by 2 days. Viral antigens in bone marrow and lung were delayed much more than in those of lymph node. These we- re similar with those of intra-peritoneal and intra-muscular route. Immune complex against IgG, IgM and C3 appeared by 16 days, 14 days, and 18 days respectively. The pattern of immunofluorescence in the basement membrane of glomeruli was diffuse membranous. Spotted pattern was also observed in the tissue stained with anti-mouse C3 antibody. By 20 days, control tissue was also shown immune complex in the glomeruli.