극저온의 생성 및 dc SQUID개발

박종철,Park, Jong-Chul 대한설비공학회 1989 설비저널 Vol.18 No.2

액체헬륨온도(4.2K)를 얻을 수 있는 극저온 소형 냉동기 개발과 정밀측정(전류, 자장, 전압 등)에 사용되고 있는 dc SQUID(초전도 양자간섭장치) 제작에 관하여 설명하였다. 이와 아울러 극저온 연구가 첨단과학 및 산업에 어떻게 응용하고 있는가와 국내외 연구현황에 대하여 간단히 기술하였으며 앞으로의 대책에 관하여 논의한다.

산소결핍 탄탈륨 산화물을 활용한 탄탈륨 산질화물 및 질화물 합성

박종철,피재환,김유진,최의석,Park, Jong-Chul,Pee, Jae-Hwan,Kim, Yoo-Jin,Choi, Eui-Seock 한국분말야금학회 2008 한국분말재료학회지 (KPMI) Vol.15 No.6

Colored tantalum oxy-nitride (TaON) and tantalum nitride ($Ta_{3}N_{5}$) were synthesized by ammonolysis. Oxygen deficient tantalum oxides ($TaO_{1.7}$) were produced by a titration process, using a tantalum chloride ($TaCl_5$) precursor. The stirring speed and the amount of $NH_{4}OH$ were important factors for controling the crystallinity of tantalum oxides. The high crystallinity of tantalum oxides improved the degree of nitridation which was related to the color value. Synthesized powders were characterized by XRD, SEM, TEM and Colorimeter.

맥류 바이러스병 발생 현황 및 BaYMV-Ik와 BnMMV에 대한 저항성 유전자의 반응

박종철,서재환,김양길,김정곤,Park Jong-Chul,Seo Jae-Hwan,Kim Yang-Kil,Kim Jung-Gon 한국작물학회 2005 한국작물학회지 Vol.50 No.3

The major symptom such as yellowish and mosaic spots in overwintering barley were mostly caused by viruses such as Barley yellow mosaic virus (BaYMV) and Barley mild mosaic virus (BaMMV) in the nation-wide for four years. The result showed that more than $78\%$ collected samples were infected by the viruses. The incidence of Ba YMV was more than $70\%$, and relatively uniformly distributed in the southern regions of barley fields in Korea. However the incidence of BaYMV in Gyeonggi Province was as low as $19\%$ compared to $65\~85\%$ in the rest of regions. Occurrence of BaMMV varied depending on investigated regions such as $20\~40\%$ in Jeonbuk, Jeonnam, Gangwon and Gyeongnam, and a lower infection in Gyeongbuk, Chungnam and Gyeonggi Provinces. In this result, $60\%$ of BaMMV was found to be in the southwest regions of Korea such as Jeonbuk and Jeonnam Provinces. Over all, both BaYMV and BaMMV were thought to be dominantly casual agents in overwintering barley by either solely or mixed infections. Soil-borne wheat mosaic virus(SBWMV) occurred at most $14\%$ in Gyeonggi and Barley yellow dwarf virus-MAY (BYDV­MAV) was found only one place in Jeonbuk, suggesting that SBWMV and BYDV-MAV were not significant diseases in Korea. Exotic genetic resources that possess different resistant genes to BaYMV and BaMMV were tested to identify the responses to the viruses occurred in Iksan. According to the ELISA results, BaYMV and BaMMV were infected in some plant materials but SBWMV was not identified. Any resistant gene was not effective to BaYMV-Ik (Insan strain) and BaMMY. Ishukushirazu (rym 3) and Chosen (rym 3), Tokushima Mochi Hadaka (rym 4y) and Hakei 1-41 (rym 5a) showed resistant response with little symptoms to BaYMY. The other five accessions possessing rym 1+5, rym 2, rym 4m, rym 5 and rym 9, respectively, were resistant to BaMMV. Various symptoms were observed in the tested plant materials such as not only yellowish and mosaic symptoms mostly but also necrotic spot, tissue necrosis, leaf stripe and leaf curling. However, it was difficult to find any relationship between resistant genes and specific symptoms.

연구발표논문초록 : 3성분계에 있어서 TPTT 식의 각변수에 미치는 영향이 분자간 상호작용에너지 PARAMETER 의 상관관계 RESPONSE MODEL 에 주는 영향

박종철,이성래,조창휘 ( JONG CHUL PARK,SEOUNG RAE LEE,CHANG WHEE CHAO ) 한국화학공학회 1982 춘계총회초록집 Vol.- No.-

인태아 방실결절의 발육에 관한 전자현미경적 연구

박종철,박성식,윤재룡,Park, Jong-Chul,Park, Sung- Sik,Yoon, Jae-Rhyong 한국현미경학회 1998 Applied microscopy Vol.28 No.1

Ultrastructural study of the development of the atrioventricular (AV) node was studied by electron microscopy in human fetus ranging from 30 mm to 260 mm crown rump length, and compared with human adult. By 30 mm fetus, the right AV nodal primordium was located below the attachment of the right venous valve. The left AV nodal primordium was observed below the attachment of septum primum. The cytoplasm of the nodal primordia contained few mitochondria, and myofibrils. These cells were apposed to each other with occasional desmosomes. In 40 mm fetus, the AV node cells were poorly organized myofibrils, while working myocardial cells were well organized myofibrils with sarcomere. At 70 mm fetus, intercalated discs were developed in the working myocardial cells. At 100 mm fetus, the nodal cells contained a relatively clear cytoplasm with a few groups of myofibrils and mitochondria. By $140\sim200$ mm fetuses, the nodal cells were an increasing number of myofibrils and mitochondria and these were scattered throughout the cytoplasm. At 260 mm fetus, the nodal cells were small and contained a clear cytoplasm with sparse and poorly organized myofibrils and mitochondria. All major ultrastructural features which characterize the adult AV nodal cells were found in this stage. The working myocardial cells were larger and had a more compact cytoarchitecture than nodal cells. Zonula adherens or fasciae adherens type junction were not found between nodal cells, but they frequently observed between nodal and working myocardial cells.

PRISM, 역거리가중법, 공동크리깅으로 작성한 1km 공간해상도의 남한 강수 자료에서 강수 분포의 비교

박종철,김만규,Park, Jong-Chul,Kim, Man-Kyu 한국지리정보학회 2013 한국지리정보학회지 Vol.16 No.3

The purpose of this study is to compare precipitation distributions in precipitation data sets over South Korea produced by three interpolation methods. The differences of precipitation caused by interpolation methods is an important information when the interpolated precipitation data sets were used in researches such as ecological and hydrological modeling as well as regional climate impact studies. In this study, the precipitation data sets were produced by IDW(Inverse Distance Weighting) and Cokriging in this study and the PRISM(Precipitation-elevation Regressions on Independent Slopes Model) data set obtained from Climate Change Information Center of Korea. The spatial resolution of the precipitation data is 1km. As a result, there was a great precipitation difference caused by interpolation methods in data of mountainous watersheds in general. Especially the difference of monthly precipitation was 10~20% or more in the mountainous watersheds near the Military Demarcation Line dividing North and South Korea, Mt. Sobaik, Mt. Worak, Mt. Deogyu, Mt. Jiri and Taeback Mountain Range. It means that a final result of a research can be affected by adopted interpolation method when an interpolated precipitation data set is used in the research for the these study sites.

수종 시판 경추보조기의 물성에 관한 평가조사

박종철,김경태,서활,Park, Jong-Chul,Kim, Kyung-Tae,Suh, Hwal 대한의용생체공학회 1997 의공학회지 Vol.18 No.3

This is to investigate the physical properties of the commercially available Soft, Thomas, Minerva, and Philadelphia cervical braces which are widely used in orthopedics, neurosurgery, and rehabilitation medicine clinics as assisting devices for physical stabilization of cervical vertebrates, to use as a basic data for designing new type brace. Tensile strengths were observed by universal mechanical measuring device and Thomas brace required the highest stress to break by tensile stress. Durabilities against continuous frictional forces were also determined, and Minerva brace demonstrated the longest frictional time until being perforated. According to these results, poly ethlene is recommendable as a frame and preparation of pores in the material is favorable to provide ventilation to skin.

호텔기업 리더의 권력유형에 따른 종사원의 경력지향성이직무몰입 및 조직몰입에 미치는 영향

박종철(Jong Chul Park),이광욱(Gwang Ock Lee) 한국관광연구학회 2014 관광연구저널 Vol.28 No.3

This study is focusing on the dyadic relationship of career orientation and job involvement, organizationalcommitment, and is trying to testify the influence of leader`s power types on career orientation meanwhile the studyis trying to testify the affects of career orientation on the job involvement and organizational commitment. Toaccomplish the goals, a field survey was conducted on the employees` of the Deluxe Hotel in Seoul area. Thestatistical tools to be undertaken in this research were frequency analysis, exploratory factor analysis, reliabilityanalysis, correlation analysis, confirmatory factor analysis, and covariance analysis using the statistical package ofSPSS(12.0) and AMOS(6.0). The results of this study, based on a positive analysis, could be summarized as follows. First, the more the leader`s power types(expert, referent power) is, the more the influence to career orientation theyperceived. Second, the more the leader`s power types(expert, reward, referent power) is, the more the influence to jobinvolvement they perceived. Third, the more the leader`s power types(legitimate, expert, referent power) is, theinfluence to organizational commitment they perceived. Fourth, the more the career orientation is, the more theinfluence to job involvement. Fifth, the more the career orientation is, the more the influence to organizationalcommitment. At the last chapter, the paper concludes with discussions and the managerial implications for theeffective personnel policies.

호텔종사원의 직무환경에 따른 자기효능감이 조직몰입 및 이직의도에 미치는 영향

박종철(Jong Chul Park),윤용보(Yong Bo Yoon) 한국관광연구학회 2014 관광연구저널 Vol.28 No.6

This study is focusing on the inter-relationships of employee`s job environment, self-efficacy, organizational commitment and turnover intention. In other words, the present study is trying to testify the influence of employee`s job environment on self-efficacy, and the affects of self-efficacy on the organizational commitment and turnover intention. To accomplish the goals, a field survey was conducted on the employees` of the Deluxe Hotel in Seoul area. The statistical tools to be undertaken in this research were frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis, confirmatory factor analysis, and covariance analysis using the statistical package of SPSS(12.0) and AMOS(6.0). The results of this study could be summarized as follows; First, the employee`s job environment(the human environment, facilities environment) has significantly positive effects on the self-efficacy. Second, the employee`s job environment(the human environment, welfare environment, facilities environment) might increase employee`s organizational commitment. Third, the employee`s job environment negatively affects on the turnover intention Fourth, self-efficacy positively effects employee`s organizational commitment and negatively affects on turnover intention. At the last chapter, the paper concludes with discussions and the managerial implications for the effective personnel policies.

부동산개발프로젝트 파이낸싱 위험관리 방안에 관한 연구

박종철(Jong chul Park),김동현(Dong hyun Kim) 한국전자통신학회 2013 한국전자통신학회 학회지 Vol.6 No.1

부동산 개발 PF 또는 사업의 안정화를 꾀하기 위한 모든 사업에서 일반적으로 접근되는 사업주 위험, 공사완공 위험, 운영위험, 시장위험, 정부위험, 환경위험 등에 대해서 기본적인 관리 방향을 제시하고 부동산개발프로젝트 파이낸싱 사업 위험관리방안을 주로 다루었다.