혈액투석을 받고있는 환자에서 자발성 뇌출혈

박재석,문재곤,김창현,이호국,황도윤,Park, Jae Suk,Moon, Jae Gon,Kim, Chang Hyun,Lee, Ho Kook,Hwang, Do Yun 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.1

Objective : The cause and clinical outcome of cerebral hemorrhage in patients on maintenance hemodialysis have been poorly studied in korea. The purpose of this paper is to clarify the clincal features and the outcome of cerebral hemorrhage in patients on maintenance hemodialysis. Method : We analyzed clincal features and the outcome of cerebral hemorrhage in 14 patients on maintenance hemodialysis. Hematomas were reviewed and evaluated for location, size, and intraventricular extension by the one of the authors without any prior informations. The axial slice of CT film that the hematoma was appeared in maximal dimension was chosen for evaluations. Result : Hypertension was found in 71.4%(10 cases) and motality rate was 78.5%(11 cases). Basal ganglia hemorrhage was found in 50%(7 cases), subcortex in 28.5%(4 cases), pons in 14.2%(2 cases). Size of hematoma in patients on maintenance hemodialysis was significantly larger than that of hypertensive cerebral hemorrhage patients(p=0.0061). The 4 cases of basal ganglia hemorrhage without intraventricular hemorrhage and subarachnoid hemorrhage were good mental state at the onset of stroke because of small mass effect relative to the size of hematoma. The duration of hemodialysis treatment prior to strokes ranged from 1 to 107 months. Strokes developed within 6 hours of the previous hemodialysis are 5 cases. Average serum albumin concentration was 3.4g/dl. The use of heparin is less responsible for the development of cerebral hemorrhage in patients on maintenance hemodialysis Conclusion : Cerebral hemorrhage in patients on maintenance hemodialysis is more severe in terms of hematoma size and clinical outcome. Therefore, the prevention and treatment of cerebral hemorrhage in patients on maintenance hemodialysis should be more aggressive.

인간의 보행 및 미끄러짐 특성에 기반한 끌기형 미끄러짐 저항 측정 조건

박재석 ( Jae Suk Park ),권혁면 ( Hyuk Myun Kwon ),오환섭 ( Whan Sup Oh ) 한국안전학회(구 한국산업안전학회) 2012 한국안전학회지 Vol.27 No.5

This study was performed to find out the measurement criteria of slip resistance from analysis of human gait and slips. Many kinds of slip resistance testers were developed based on mechanical friction testers. But, there are, as yet, no unambiguous slip resistance measurement methodologies and generally accepted safety criteria or safety thresholds for estimating slipping hazard exposures, Also, there are variety of measuring conditions between those testers, The measurement criteria should be tested within the range of human slipping conditions observed in biomechanical studies, It`s results should clearly consider whether the devices reflect the human slipping conditions. In this study a dragsled type friction tester, which was constructed in accordance with ISO 15133 basically, was used. Test conditions were set in order to determine the range of measurement criteria. It is shown that drag velocity should be more than 1 m/s, acceleration be more than 10 m/s2, contact time be less than 0.1sec, and contact pressure be within 350~400kPa.

자생지 춘란의 화아형성과 내생 GA 및 ABA 유사물질의 활성

박재석(Jae Suk Park),정재동(Jae Dong Chung),김홍열(Hong Yul Kim) 한국원예학회 2001 Horticulture, Environment, and Biotechnology Vol.42 No.2

Cognitive Radio 시스템을 위한 간섭온도 기반의 주파수 공유 기법

박재석(Jae-Suk Park),최주평(Joo-Pyoung Choi),이원철(Won-Cheol Lee) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7

In this paper, we proposed the scheme in which the CR user can coexist with the primary user assumed to be 802.l1b WLAN (Wireless Local Area Network) in the 2.4 ㎓ ISM (Industrial, Scientific and Medical} band without harming the primary user based on interference temperature. Based upon the systematic process introduced in this paper, the coexistence of CR user would be possible.

[생산기술부문] 관재의 하이드로 포밍 기술에 대한 실험적 연구

박재석(Jae-Suk Park),박춘달(Chun-Dal Park),김영석(Young-Suk Kim) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-

The hydroforming technology has gained in importance over the last few years, because of its potential for substantial weight savings costs reduction and quality improvement such as collision property, shape fixability and rigidity of white body. However, in comparison with the traditional sheet forming process, the hydro forming is much younger and the main development efforts were made in the last 15 years. The new technology, high pressure tublar hydro forming in particular, involves many process parameters to be optimized.<br/> This paper covers a brief overview of the hydro forming simulator as well as design of die and tools. The effects of typical parameters such as internal pressure and axial compression stroke are presented. Moreover, the conditions of forming failure occurrences such as fracture and wrinkle are examinated.

한국춘란의 핵형 및 동위효소분석

박재석(Park Jae-Suk),정재동(Chung Jae-Dong),정민섭(Chung Min-Sub) 한국원예학회 1989 한국원예학회 학술발표요지 Vol.7 No.1

일제 말기 자녀 입원기(入院記) 단편 고찰

박재석 ( Jae Suk Park ) 조선대학교 인문학연구소 2011 인문학연구 Vol.0 No.42

중일전쟁기에 들어서 주요 문학지에는 자녀의 입원기 형식을 취한 단편들이 연이어 엇비슷하게 발표된다. 이들 단편은 전시체제로 접어든 시점에서 제국의 전쟁수행이나 지배 체제 강화를 위해 식민지 내에서 가족 단위로부터의 건강한 인구 관리 및 재생산의 요구가 증대하고, 이것이 자녀의 건강과 질병에 대한 관심을 각별히 촉발했던 정치적 배경에 놓여 있다. 장덕조의 『입원』은 법정전염병인 디프테리아에 걸린 아이의 입원 과정에서 병실의 규칙 수용과 관련해 서로 마찰하고 전도되는 목소리들의 유동적 관계를 통해 병원에서의 규율이 작동하는 다면적 모습을 보여주고 있다. 더욱이 ``국어 상용``이 강화되어 가는 시점에서 ``국어``와 ``통역`` 간의 불투명한 관계를 드러내 주고 있다. 그로써 피식민자의 생명과 건강에 보다 규범적으로 작용하는 의료 규율은 언어적 전달과 소통 과정에서 여러 방식으로 어긋나거나 굴절될 수 있음을 이 단편은 시사하고 있다. 유진오의 『봄』은 법정전염병 성홍열에 감염된 아이를 전염병실에서 간병하는 부부가 생명 관리의 기술에 생리적으로 보다 자연스럽게 포섭되는 과정을 보여준다. 이것은 자연과 인위, 생명과 기술 사이의 공간적인 괴리와 균열이 사라지는 것인데, 규율의 근간이 되는 공간상의 분할 논리마저 초월한 생명 권력의 조화로운 통합 공간을 시사하고 있다. 한설야의 『술집』과 정인택의 『단장』에서 자녀의 입원과 치료는 자기 의사를 표현 못하는 아이 위치에서 의료적 소통과 인권의 문제를 제기한다. 한설야의 『술집』에서 자식의 병을 제대로 진단받지 못하는 ``삼등병실``의 공간은 의료적 소통 구조의 장애와 혼란을 그대로 보여준다. 여기서는 건강을 상품화하는 의료 공간이 일제말기의 전시 상황에서 ``국민``으로의 균등한 통합의 지향에 있어 분열과 차별의 모순을 내포하고 있음을 보여준다. 정인택의 『단장』은 현대의학에서 불치병인 수 암에 걸린 아이의 신체가 연구용의 시료 대상이 되면서 해부학적 시선에 지배받는 모습을 보여준다. 시간적으로 유일무이한 생명의 희생을 대가로 부단한 자기 갱신을 도모하는 ``현대의학``은 어린 생명에 대한 절대적 구원의 노력보다 임상 관찰을 통한 객관적 지식의 확보에 더 관심을 둔다. 그것은 자기 결정권이 없는 어린 생명의 타자성이 전유되고 말소되는 권력 관계의 장에 의사와 부모가 모두 속해 있는 상태를 드러낸다. 일제 말기의 전시 총동원을 위한 생명 권력의 체제는 생명의 지속적 관리와 조절을 통해 국민적 통합의 공간을 조직하고자 했다. 이 시기에 식민지의 자녀들은 제국의 소국민이자 제국의 미래로서 생명 정치의 중요한 관심 대상이 되었다. 자녀 입원기 단편은 그러한 환경에서 제국의 공간 정치학과 미래 기획이 가진 이념과 균열을 동시에 드러내 주는 측면이 있다. In the Chinese- Japanese War period, the main literary magazine in the colonial Korea similarly ran the children`s hospital record fictions, This fictions reflect the political background increasing the demand of healthy population administration and reproductin for empirial war potential or control system reinforcement, and this being moved the interest about children`s health and disease, Chang duck-jo(장덕조)`s Ib-won(Hospitilization) shows the diversified aspect operating a hospital discipline through the fluid relation of reciprocally recording and reversing voices relating to hospital room`s rule adatation in diphtheria-infected children`s hospital admission procedures. Especially in the time of intensifying the ``Kokugo(the Japanese language) Daily Use`` policy, that reveals the relation of uncertain relarion between ``Kokugo`` and ``interpreting``. This fiction suggests the medical discipline canonically operating on the colonized people`s life and health would tun out and refract at variance. Yu jin-o(유진오)`s Bom(Spring) shows the course of naturally being ruled under the life administration technology through scarlatina-infected children nursing. This shows a disappearance spatial alienation and split between the natural and artficial, life and technology, and suggests the harmonized unified space of bio-power overcoming the space-divisional logic founding the medical discipline. Han Sul-ya(한설야)`s Sul-jib(A Drinking House) and Jung in-taek(정인택)`s Dan-jang(Short Chapter) narrating the children`s hospitalizatin and treatment suggest the problem of medical communication and human rights in the position of children having inability to express himself. In the Sul-jib, a third-class sickroom taking not thoroughly diagnosed patient reveals disorder and confusion of the medical communication system, Here, medical space commercializing health shows involving the contradiction of split and discrimination at an intentionality in the even national integration in late colonial period`s wartime, Jung in-taek`s Dan-jang shows the children`s body being dominated by anatomical gaze at a charity patient becoming an incurable noma study case. Contemporery medicine is more concerned about the secure of the objective knowledge rather than efforts of an absolute salvation for a little life. That presents a condition that a medical man and parents are subjecting the field of power relation appropriating and erasing the otheness of a little life not having the self-determination right. The bio-power system for wartime mobilization in the late colonial period intended to organize the national integrated space through the continuously administration and regulation. At this time, the colonial children as an imperial little-national and an empire`s future becomes the primary concern of bio-power. In ths circumstance, children`s hospital record fictions have an aspect revealing the ideology and split of empire`s space politics and future project at the same time.

점도변화에 따른 바닥 오염물질의 미끄러짐 저항 특성

박재석 ( Jae Suk Park ),오환섭 ( Whan Sup Oh ) 한국안전학회(구 한국산업안전학회) 2012 한국안전학회지 Vol.27 No.5

While there is no standards on slip risk for contaminants on surface, glycerol is described in standard contaminant for measuring coefficient of friction (COF) and slip resistance such as ISO 13287, But that is just used to measure the slip resistance of surface materials and shoes not to evaluate the contaminant materials, Therefore the objective of this study was to find out the relationship between standard contaminant and the contaminants used usually at the workplaces. For this, some measurement criteria were acquired from the analysis based on biomechanics and kinetics of human gait during slips. The slip resistance according to viscosity of the contaminants was measured applying the criteria and slip probability was determined by the gait analysis. Some factors which should be considered when measuring the slip resistance were identified. The velocity, acceleration, contact time and contact pressure should be 1 m/sec, 10 m/sec2, 350kPa and less than 0.5sec respectively. The variation of viscosity according to temperature for working oils was different from that of standard contaminant. The static coefficient of friction (SCOF) of working oils was almost 0.5 times as large as the SCOF of standard contaminant. So it was assumed to be difficult to compare the contaminants at the workplaces with the glycerol as a standard contaminant for estimating the slip risk.

스프링강의 판압연시 폭확대에 관한 연구

박재석(Jae-Suk Park),최운(Woon Choi),남승의(Seung-Eui Nam) 한국소성·가공학회 1995 소성가공 : 한국소성가공학회지 Vol.4 No.2

프로축구 팬의 비디오판독(VAR)에 대한 인식과 관람몰입, 관람만족 및 재관람의도와의 구조적 관계

박재석(Park, Jae-Suk),최용석(Choi, Yong-Suk),신승호(Shin, Seung-Ho) 한국스포츠산업경영학회 2020 한국스포츠산업경영학회지 Vol.25 No.4

이 연구는 프로축구 팬의 비디오판독(VAR)에 대한 인식과 관람몰입, 관람만족 및 재관람의도와의 관계를 규명하고자 하였으며, 이를 토대로 효율적인 비디오판독 제도의 운영을 도모하고, 프로축구의 발전과 활성화를 위한 기초자료를 제공하는 데 연구의 목적이 있다. 이 연구를 위하여 K리그1 경기 관람경험이 있는 팬들을 대상으로 하여 총 331부의 설문지를 최종 분석 자료로 활용하였다. 연구결과 다음과 같은 결론을 도출하였다. 첫째, 비디오판독 인식의 하위요인 중 공정성, 일관성, 신뢰성은 관람몰입에 유의한 영향을 미쳤으며, 신속성은 유의한 영향을 미치지 않았다. 둘째, 비디오판독 인식의 하위요인 중 공정성, 신뢰성은 관람만족에 유의한 영향을 미쳤으며, 신속성, 일관성은 유의한 영향을 미치지 않았다. 셋째, 비디오판독 인식의 하위요인 중 공정성, 일관성은 재관람의도에 유의한 영향을 미쳤으며, 신속성, 신뢰성은 유의한 영향을 미치지 않았다. 넷째, 관람몰입은 관람만족 및 재관람의도에 유의한 영향을 미쳤으며, 관람만족은 재관람의도에 유의한 영향을 미쳤다. 프로축구에서 비디오판독(VAR)은 신속성보다 우선적으로 공정성, 일관성, 그리고 신뢰성에 더욱 중점을 두고 판정을 내려야 할 것이다. The purpose of this study was to study the structural relationships among spectating flow, spectating satisfaction, re-spectating intention and professional football fan’s perception on VAR(Video Assistant Referee), and to provide basic data for the development and revitalization of VAR system in professional football. Total 350 subjects for this study were selected among members of the K-League"s online community site and 331 of them were used as final analysis data. The results were as follow. First, among the sub-dimensions of VAR perception(i.e., fairness, consistency, reliability, speed), fairness, consistency, and reliability had significant influences on spectating flow. Second, fairness and reliability had significant effects on spectating satisfaction. Third, fairness and consistency had significant impacts on re-spectating intention. Finally, fourth, spectating flow has a significant impact on spectating satisfaction and re-spectating intention, spectating satisfaction has a significant impact on re-spectating intention. VAR judgement in professional football game should focus more on fairness, consistency and reliability rather than making quick decisions to avoid disrupting the flow of the game. VAR is a recently introduced system, but as the system settles down, the equipment improvement and judging techniques are improved, the judgment time will be reduced, thereby minimizing disruption to the flow of the game.