몽골 버러지역 토양의 중금속 오염 현황 조사

박주현,박제현,김탁현,연규훈,Park, Juhyun,Park, Jayhyun,Kim, Takhyun,Yeon, Gyuhun 한국지하수토양환경학회 2018 지하수토양환경 Vol.23 No.5

The Boroo area in Mongolia is known to have been contaminated with heavy metals due to irregular gold mining activities and the release of mercury from gold extraction process. Soil and mine tailings were collected to analyze contamination patterns of heavy metals in the Boroo area. Analyses revealed that mercury, arsenic and cadmium concentrations exceeded the regulatory standard of the nation (Mongolia National Standard). In case of mercury, about 80% of the survey area was over the limit and the concentration distribution heavily influenced by influx of mercury through water transport. Soil contamination by arsenic was most severe that the concentration exceeded the regulatory limit in almost entire survey area, showing peak concentrations at nearby streams and river along with ore processing facilities. For cadmium, about 20% of the survey area was over the limit with the concentration distribution similar to that of arsenic.

소비자 조사와 착의 실험을 통한 온도감응형 기능성 의류개발을 위한 기초연구

상정선 ( Jeong-seon Sang ),정경화 ( Kyunghwa Chung ),박주현 ( Juhyun Park ),오경화 ( Kyung Wha Oh ) 한국의류산업학회 2017 한국의류산업학회지 Vol.19 No.1

In this research, consumer awareness investigation and wearing test were carried out for obtaining useful data on the development of thermo-sensitive functional clothing material. A survey involved 216 people in Seoul and Kyeonggi- do, and 200 questionnaires data were analyzed by descriptive statistics and frequency using SPSS 17.0. Four healthy men in twenties were participated for wearing test. Subjects in normal loungewear were exposed to temperature change from the initial temperature 30oC down to 5oC for an hour in a climate chamber. The environmental temperature, surface temperature of garment and skin were measured. As a result, most of respondents have all season clothing products such as underwear, hosiery, and jogging suit for loungewear. Also, thermo regulator y functional clothes are frequently used as underwear and sweat shirt. The consumer awareness investigation on thermo regulatory functional clothing showed that the most important key buying factor is quick climate temperature response, easy maintenance, design and cost, in that order. Surface temperature of garment went down with the cooling down of environmental temperature. The lower environmental temperature, the greater temperature difference by body part showed. Skin temperature change by environmental temperature showed similar tendency of garment surface temperature. In comparison between garment surface and body skin, temperature difference became larger under the lower environmental temperature.

추진기관 시스템 시험설비 개발을 위한 해외사례 분석 및 적용방안

박주현(Juhyun Park),박순상(Soonsang Park),한영민(Yeoungmin Han),김지훈(Jihoon Kim) 한국추진공학회 2012 한국추진공학회 학술대회논문집 Vol.2012 No.5

로켓 추진기관 시스템의 성능을 입증하기 위한 시험설비는 로켓시스템의 개발을 위한 필수 인프라이다. PSTC는 발사체의 각 단별 추진기관 시스템의 수류시험 및 연소시험을 수행하고, 발사 프로세스에 대한 지상검증을 수행한다. PSTC 개발을 위해 국내외 기술을 조사하여, 관련분야의 사례를 적극 활용한다. 추진기관 시험설비는 유공압 시설 및 제어계측, Test Stand, 화염유도로 등을 구성한다. The test facility for confirming performance of a propulsion system is essential infra-structure to develop launch vehicle system. Using the PSTC, cold flow and combustion tests are performed to the propulsion system of individual stage in launcher. Moreover the ground test for the total launching process is conducted. In order to construct the PSTC, we not only have surveyed technology of internal and external countries, but also actively use the case in terms of the system. The test facility consists of feeding system, test stand, control and measurement, and flame deflector.

중한 문학번역에서의 의태어 사용 전략 — 중국어 소설 『草房子』를 중심으로

박주현(PARK, JUHYUN),이아형(LEE, AHYOUNG) 한국중국어교육학회 2022 중국어교육과연구 Vol.- No.38

수동 변속기가 장착된 전기자동차의 셀 성능 예측

박주현(Juhyun Park),이윤구(Yoonkoo Lee) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.5

광주지역 먹는물 공동시설의 미생물 특성 및 분포조사

박주현(Juhyun Park),김선정(Seonjung Kim),이윤국(Youn-gook Lee),김난희(Nanhee Kim),강유미(Yumi Kang),배석진(Seokjin Bae),김종민(Jongmin Kim) 한국환경보건학회 2021 한국환경보건학회지 Vol.47 No.2

Objective: This study was performed to detect indicator bacteria in drinking spring water samples in Gwangju City and to identify their genus using the VITEK-II system. Methods: The subjects were ten drinking spring water sites in Gwangju. Samples of spring water were taken every month from September 2019 to August 2020. We analyzed for the indicator bacteria Yersinia and microorganisms isolated from the spring water. Result: According to the research results on indicator bacteria, general bacteria in st1-st7 with sterilization facilities in the spring and summer were investigated in the range of 0-2 CFU/mL and 0-12 CFU/mL. In st9, where a sterilization facility was not installed, the most general bacteria were detected (160 CFU/mL). Total coliform and fecal coliform showed unsatisfied rates of 16.7 and 11.1% in spring and 14.7 and 11.8% in summer, respectively. The unsatisfied rates of total coliform for the designated and non-designated spring water facilities were 3.8 and 47.1%, respectively, and for the fecal coliform group they were 2.5 and 35.3%. The difference was confirmed according to the presence of a sterilization facility. Yersinia spp. was not detected in all drinking spring water. Forty-one strains in 25 species were isolated from ten sites. The results classified as major dominant species are Pseudomonas spp. 14.6%, Pantoea spp. 9.8%, Serratia spp. 9.8%, Acinetobacter spp. 9.8%, Citrobacter spp. 7.3%, Bordetella spp. 7.3%, Delftia spp. 4.9%, and Enterobacter spp. 4.9%. Conclusions: Based on the result that various species derived from fecal pollution and artificial pollutants were detected in the non-specified public spring water facilities that many people use, the facilities need institutional complements such as continuous management or complete shutdowns.

저전압에서 비트 인터리빙 구조 사용 시 안정된 데이터 보존을 위한 10T SRAM

박주현(Juhyun Park),양영휘(Younghwi Yang),송승철(Seung Chul Song),Joseph Wang,Geoffrey Yeap,정성욱(Seong-Ook Jung) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.6

산업보안 기술유출방지의 인적관리 개선방안 연구

박주현(Park Juhyun),박용석(Park Yongsuk) 한국IT서비스학회 2018 한국IT서비스학회 학술대회 논문집 Vol.2018 No.-

본 논문에서는 회사의 비밀정보 유출자의 동기를 고려하여 애사심을 유도하는 일환의 자율적 보안관리의 체제를 수립하고, 통제적 보안관리 방안이 연계될 수 있도록 대안을 제시한다.

무도(武道) 지도자의 정치의식에 관한 연구

박주현(Juhyun Park) 한국무예학회 2014 무예연구 Vol.8 No.2

본 논문의 목적은 무도 수련생들의 정치사회화과정에 중요한 영향을 미칠 수 있는 매개자로서 무도지도자들의 정치의식의 특징들을 조사하는데 그 목적이 있다. 본 연구 의 측정도구로는 설문지를 사용하였으며, 설문조사 대상은 태권도, 합기도, 택견의 지도 자를 대상으로 하였다. 분석방법은 빈도분석, 신뢰도분석을 실시하였으며, 연구대상의 인구통계학적 배경, 그룹별 집단 간의 기술 통계량을 구하고, 인구사회학적 배경과 그 룹별에 따른 각 집단 간의 정치의식의 차이를 검증하기 위해 일원분산분석을 실시하였으며, 사후 검증으로는 던컨 테스트를 실시하였으며, 지도 경력이 정치의식에 미치는 영향을 규명하기 위해서는 단순회귀분석을 실시하였다. 본 연구의 결론은 다음과 같다. 지도 경력이 정치의식에 미치는 영향에 대한 분석 결과, 정치 신뢰도와 민주 시민의 식을 제외한 정치 관심도, 정치 성향, 정치 효능감, 정치 참여태도에서 유의한 영향을 미치는 것으로 나타났으나, 부(-)의 영향을 미치는 것으로 나타났다. 이상의 결과들은 무도 지도자는 무도 수련의 기간이 오래되고 지도 경력이 높을수록 부(-)의 영향을 미치는 것으로 보아 무도지도자들의 정치에 대한 적극적인 관심과 참여 가 필요함을 알려주며, 특정한 연령층에서의 정치의식이 높게나오는 것으로 보아 특정한 정치적 경험은 그 세대의 정치 사회화에 중요한 영향을 미치는 것을 알려준다. 또한 이러한 연구결과들은 향후 무도자도자의 정치의식을 연구하는데 근거 자료로 활용될 수 있으며, 후속연구에 중요한 초석이 될 것이라고 판단된다. The purpose of this paper is to investigate the characteristics of the political consciousness of martial arts teachers that may have significant impact on the political socialization process of their students as an intermediary. This study has used questionaries as the measurement tools, and surveyed the teachers of Taekkyon, Taekwondo, Hapkido as a study target. In analysis methods, it was conducted by the 'frequency analysis' and the demographic background of the study target, and the research has used the analysis to calculate the factor of Cronebacha' alpha (Cronbach'a) and verified the reliability scale of political consciousness. In addition, they obtained demographic backgrounds, between groups technique statistics, Inorder to identify the impact of careers on the political consciousness, a simple regression analysis was conducted. The main conclusions of this study are as follows: "the political consciousness based on Teaching experience" showed no significant impact about 'political interest', 'political inclination', 'political efficacy', 'political participation' except for 'political credibility', 'Democratic Citizenship', but, impacton negative(-). Therefore, it suggests that the economic stability is necessary for martial arts teachers, and also that they require effective and systematic teaching program with scientific management system. next, the political consciousness has appeared highly in certain generation. It means that the specific political experience has impact on political socialization of the generation. In special, the political consciousness was shown highly in young martial arts teachers. The political role and impact of young martial arts teachers is expected to increase in the future. Therefore, it implies that the creating condition to enlarge the political aisle of young martial arts teachers is important. and also that proper politi calcare and active political participation of senior martial arts teachers should be supported.

단순 연화층 모델을 적용한 석탄 성상별 Coke Oven 내의 가스압 특성

박주현(Juhyun Park),최상민(Sangmin Choi) 한국연소학회 2006 KOSCOSYMPOSIUM논문집 Vol.- No.-

A simplified model of plastic layer and internal gas pressure in a coke oven is presented. We calculate internal gas pressure using presented model. And results are compared with calculated results using experimental data. Results show the difference of internal gas pressure by coal composition. The model is used to show that the permeability at the resolidification end of the plastic layer is a key determinant of the magnitude of the internal gas pressure.