지역사회 중심 가정간호사업 운영연구(가정간호사업 운영을 위한 정보전달체계 개발Ⅱ)

박정호,김매자,홍경자,한경자,박성애,윤순녕,이인숙,조현,방경숙,Park, Jung-Ho,Kim, Mae-Ja,Hong, Kyung-Ja,Han, Kyung-Ja,Park, Sung-Ae,Yun, Soon-Nyoung,Lee, In-Sook,Cho, Hyun,Bang, Kyung-Sook 한국가정간호학회 1998 가정간호학회지 Vol.5 No.-

The purpose of this study was to develop the framework of community-based home care nursing delivery system, and to examine the validity of it. For these, home care nursing study team of College of Nursing, Seoul National University has studied home care nursing system since September, 1996, and has operated home care center since August, 1997. This study has been supported by the Korean Sience Foundation. We organized Committee of rules, and Clinical specialist consultant group for more efficient running of the home care center. In nursing station, research assistant controlled general work, and 5 home care nurses were hired for home visiting. We developed the Standards for operations, that included criteria for clients, central supply system of nursing materials, central management of nursing care cost, advertisement, patient referral system, and so forth. In our center, 108 patients enrolled, and neurologic disorders including cerebrovascular accident, and cancer were the most prevailing diseases. We tried to overcome the limitations of hopital -based home care, and to provide more accessible, efficient, safe, and stable home care nursing. Therefore, we were referred clients from patients and families, public health care center, industries, as well as from hospitals. Meanwhile, we developed home care recording system and assessment-intervention algorithm for various diseases for quality control and standardization. Also, we did continuing education, and tried to detect problems and to find solutions by regular meeting between the committee of rules and home care nurses. As the results of this study, several limitations of operation were found. First, it was difficult to manage and communicate with the doctor in the emergency situation, Second, we spent too much time for trasnsportation, because only five nurses covered all areas of Seoul and nearby cities. Third, preparation for special care of home care nurses were lacked. Forth, criteria for termination of care and frequency of home visit were ambiguous. Fifth, some difficulties were found in retrospective payment system. And finally, interconnection with home care machinery company were needed. Strategies for solving these problems were suggested.

중요 웨이브렛 계수 검출에 의한 임베디드 영상 부호화 기법

박정호,최재호,곽훈성,Park, Jeong-Ho,Choi, Jae-Ho,Kwak, Hoon-Sung 대한전자공학회 1999 電子工學會論文誌, S Vol.s36 No.8

본 논문에서는 웨이브렛 영역에서 임베디드 영상 부호화를 위한 새로운 알고리즘을 제안하였다. 이 방식은 Shapiro가 제안한 알고리즘을 에지 검출, 계층적 트리 및 분류벡터 양자화 기법등과 결합하여 이를 확장한 형태이다. 일반적으로 영상에서의 에지는 시각적으로 중요한 요소이며, 기존의 많은 문헌에서 이러한 에지 정보가 웨이브렛 변환 영역에서의 중요계수와 관련이 있음을 보여주었다. 본 논문에서는 이러한 특성을 이용하여 웨이브렛 트리에서 그의 하위 계층을 조사하지 않고도 중요계수를 쉽게 검출하는 알고리즘을 제안하였다. 이러한 중요계수에 대하여 계층적 트리를 구성하였고 트리의 부호화를 위하여 분류벡터 양자화가 적용되었다. 실험결과 제안한 부호화기는 기존의 방식에 비하여 특히 낮은 비트율에서도 좋은 결과를 나타냄을 확인하였으며 전기적 전송이 요구되는 분야에 응용될 수 있을 것으로 기대된다. A new method for wavelet embedded image coding is presented extending the bases of the Shapiro's algorithm by incorporating edge detection, zerotree scheme, and classified VQ(CVQ). Generally edges in the image are regarded an visually important components and the previous literatures have proved that significant coefficients in wavelet transform domain correspond to the edges in spatial domain. Hence, by identifying the edge elements, the significant coefficient can be easily detected in wavelet domain without investigating descendant coefficients across layer. Hierarchical trees for the significant components are organized, and then CVQ method is applied to these trees. Since the significant information has higher priority in transmission, the simulation shows that our coder provides a superior performance over the conventional method and can be successfully applied to the application areas that require of progressive transmission.

Dose Attenuation in the Mid-Cranial Fossa with 6 MV Photon Beam Irradiations

박정호,최태진,김옥배,Park, Jeong-Ho,Choi, Tae-Jin,Kim, Ok-Bae The Korean Society for Radiation Oncology 1990 Radiation Oncology Journal Vol.8 No.1

방사선조사시 선량분포에 영향을 미치는 여러가지 요소들 중에서 조직불균등성은 선량을 상당히 변화시킨다. 특히, 중뇌강은 여러골조직으로 구성되어 있어 조직 불균등성에 따른 상당한 선랑감쇠가 예상된다. 6 MV X-선 조사후 중두개와에서의 선량분포측정은 LiF TLD 소자를 이용하였으며 같은 측정장소에서, 계산에 의한 예상선량과 실측선량의 비교를 시도하였다. 계산에 의하면, 골조직 1 cm당 예상선량감쇠는 $3.74\%$를 나타내었다. 한편, 골조직을 고려한 예상선량과 실측선량의 차이는 매우 적었으며 $\pm0.21\%$의 오차범위내에서 일치됨을 나타내었다. In X-ray irradiation, dose distribution depends on multiple parameters, one of them being tissue inhomogeneity to change the dose significantly. considerable dose attenuation through the mid-cranial fossa is expected because of various bony structures in it. Dose distribution around the mid-cranial fossa, following irradiation with 6 MV photon beam, was measured with LiF TLD micro-rod, and compared with the expected dose inthe same sites. In our calculation with $C_f$(correction factor), the expected dose attenuation revealed about $3.74\%$ per 1 cm thickness of bone tissue. And the differences between the expected dose with correction for bone tissue and the measured dose by TLD was small, agreeing within an average variation of $\pm0.21\%$.

전자부품 산업의 육성발전 제안

박정호,Park, Jeong-Ho 한국전자정보통신산업진흥회 1986 電子振興 Vol.6 No.4

Cover Story - 해빙기 무사고! 동절기 안전관리가 선제조건

박정호,Park, Jeong-Ho 한국방재협회 2012 방재저널 Vol.14 No.1

중성자 발생용 구형 집속빔 핵융합 장치의 방전현상 연구

박정호,주흥진,고광철,Park, Jeong-Ho,Ju, Heung-Jin,Ko, Kwang-Cheol 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.5

Application field of neutron beam is very broad including industry, medicine and science. But the research and development and use of neutron beam is restricted within in narrow limits in this country, because neutron beam facility is insufficient - a big research facility of nuclear reactor(HANARO) and some small industrial facilities which use radioisotope neutron source are available. This paper compare and investigate the results of experiment and numerical analysis of the discharge in the spherically convergent beam fusion device which were expected as a portable neutron source. The spherically convergent beam fusion device will offer stability in neutron production, possibility of movement for convenience, low construction cost and higher neutron flux than radioisotope neutron source. The star mode discharge which efficiently generate neutron, were observed at both results.

레이저 직접묘화법(Laser Directing Writing)을 이용한 미세패턴 금속화 기술

박정호,이제훈,한유희,Park, Jeong-Ho,Lee, Je-Hun,Han, Yu-Hui 재료연구소 1999 機械와 材料 Vol.11 No.1

Specific elimination of coxsackievirus B3 infected cells with a protein engineered toxin-antitoxin system

박정호,Jin-Ho Park,Wonho Choi,Byung-Kwan Lim 대한독성 유전단백체 학회 2019 Molecular & cellular toxicology Vol.15 No.4

Backgrounds: Coxsackievirus B3 (CVB3) is a member of the family Picornaviridae, and along with polioviruses, belongs to the Enterovirus genus. The CVB3 genome is composed single-stranded RNA encoding polyproteins, which are cleaved to individual functional proteins by 2A and 3C proteases proteins which have been targeted for drug development. Here, we showed that protease activity required to activate a toxic protein may be used to prevent viral infection. Methods: We modified the MazE-MazF antitoxin-toxin system of Escherichia coli to fuse a C-terminal fragment of MazE to the N-terminal end of toxin MazF with a linker having a specific protease cleavage site for CVB3. This fusion protein formed a stable dimer and was capable of inactivating the mRNA interferase activity of MazF which cleaves the ACA sequence in mRNA substrates. Results: The incubation of 2A proteases with the fusion proteins induced cleavage between the MazE and MazF fragments from the fusion proteins; the subsequent release of MazF significantly inhibited virus replication. Additionally, we note that, CVB3 infected HeLa cells quickly died through a MazF toxin mediated effect before virus protein expression. Conclusion: These findings suggest that the MazEF fusion protein has a strong potential to be developed as an anti-virus therapy following CVB3 infection.

Cover Story - 2012 해빙기 재난취약시설 안전관리대책

박정호,Park, Jeong-Ho 한국방재협회 2012 방재저널 Vol.14 No.2

생성트리와 강결합요소의 갱신을 위한 분산 알고리즘

박정호,박윤용,최성희,Park, Jeong-Ho,Park, Yun-Yong,Choe, Seong-Hui 한국정보처리학회 1999 정보처리논문지 Vol.6 No.2

생성트리와 같은 문제를 해결하는데 필요한 정보가 네트워크상의 프로세서에 분산되어 있는 상황에서 그들 정보를 교환하면서 그 문제를 해결하는 알고리즘을 분산알고리즘(Distributed Algorithm)이라고 한다. 생성트리와 강결합요소가 이미 구성되어 있는 비동기식 네트워크상에서 네트워크 형상이 변할 경우, 이로 인해 구성되어 있던 생성트리와 강결합요소를 갱신해야 해는 경우가 발생한다. 본 논문에서는 이러한 경우 생성트리와 강결합요소를 효율적으로 갱신하는 메시지 복잡도 O(n'log n'+ (n'+s+t)), 이상시간복잡도 O(n'log n')의 분산 알고리즘을 제안한다. 여기서 n'는 토폴로지 변화후의 네트워크의 프로세서수, s는 추가 링크수를 나타낸다. 또 t는 삭제 링크를 포함하는 강결합요소에 포함되어 있는 전체 링크수를 나타낸다. Considers the problem to update the spanning tree and strongly-connected components in response to topology change of the network. This paper proposes a distributed algorithm that solves such a problem after several processors and links are added and deleted. Its message complexity and its ideal-time complexity are O(n'log n'+ (n'+s+t)) and O(n'logn') respectively where n'is the number of processors in the network after the topology change, s is the number of added links, and t is the total number of links in the strongly connected component (of the network before the topology change) including the deleted links.