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자기재/폴리머 계면이 하이브리드 애자의 미세구조, 절연특성과 전계분포에 미치는 영향
조준영,김우석,안호성,안희성,김태완,임윤석,배성환,박찬,Cho, Jun-Young,Kim, Woo-Seok,An, Ho-Sung,An, Hee-Sung,Kim, Tae-wan,Lim, Yun-Seog,Bae, Sung-Hwan,Park, Chan 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.9
Hybrid insulators that have the advantages of both porcelain (high mechanical strength and chemical stability) as well as polymer (light weight and high resistance to pollution) insulators, can be used in place of individual porcelain and polymer insulators that are used for both mechanical support as well as electrical insulation of overhead power transmission lines. The most significant feature of hybrid insulators is the presence of porcelain/polymer interfaces where the porcelain and polymer are physically bonded. Individual porcelain and polymer insulators do not have such porcelain/polymer interfaces. Although the interface is expected to affect the mechanical/electrical properties of the hybrid insulator, systematic studies of the adhesion properties at the porcelain/polymer interface and the effect of the interface on the insulation characteristics and electric field distribution of the hybrid insulator have not been reported. In this study, we fabricated small hybrid insulator specimens with various types of interfaces and investigated the effect of the porcelain/polymer interface on the microstructure, insulating characteristics, and electric field distribution of the hybrid insulators. It was observed that the porcelain/polymer interface of the hybrid insulator does not have a significant effect on the insulating characteristics and electric field distribution, and the hybrid insulator can exhibit electrical insulating properties that are similar or superior to those of individual porcelain and polymer insulators.
조준영,양내원,Cho, Junyoung,Yang, Naewon 한국의료복지건축학회 2017 의료·복지 건축 Vol.22 No.3
Purpose: This study analyzed the status of general hospitals as an expanded concept of medical resources including medical staff and equipment. The purpose of this study is to provide a basic for the feasibility study of the scale and establishment of facility guidelines at the planning stage of general hospitals. Methods: The subjects of this study were limited to general hospitals. The status of medical resources was based on the data of the Health Insurance Review and Assessment Service. The number of beds, doctors, nursing grades and major medical equipment were surveyed in 335 general hospitals. Results: 1) The characteristic of general hospitals varies depending on the number of inpatient beds. To be concrete, there were differences in the number of medical staffs and equipments in general hospitals based on 300 500 800 1,000 beds. 2) As the number of hospital beds increases, the number of medical staff increases more than medical equipment and facilities. Medical equipment and facilities remain constant, even when the number of beds increases. On the other hand, the number of medical staff increased about 1.5 times in each level. Implications: Architectural plans for medical staff should be considered differently depending on the number of beds. In particular, architectural planning and facility guidelines should be applied differently based on 300 and 500 beds.
스마트폰을 활용한 개인 병사용 지휘 통제 시스템 설계 및 구현
조준영,임만엽,Cho, Joon-Young,Lim, Man-Yeob 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.1
The modern warfare needs sharing tactical situation and Command and Control(C2) capacity. Lately, developing of C2 System for Soldiers has dramatically increased according to increase of asymmetric state of hostilities like a guerilla war or a street-to-street fighting. In this paper, we explain the concepts of C2 System for Soldiers and Smart Phone. We describe the proposed system composed of HMD equipment, Smart Phone, and exclusive software. This system provides that Soldiers have C2 capacity and share the image of a visual field. It also offers efficient military power disposition and understanding tactical situation in operations.
조준영,이지영,이진무,장준복,이경섭,Cho, Jun-Young,Lee, Ji-Yung,Lee, Jin-Moo,Jang, Jun-Bock,Lee, Kyung-Sub 대한한방체열의학회 2010 대한한방체열의학회지 Vol.8 No.1
Purpose : The purpose of this study is to know the temperature difference between hysterectomy patients and non-hysterectomy patients. Methods : We studied 45 who had and 45 non-hysterectomy visiting ${\bigcirc}{\bigcirc}$ medical center from January 1st 2010 to December 31st 2010. We measured 3 points temperature of specific acupoints-Chonjung(CV17), Chungwan(CV12), Kwanwon(CV4) by DITI in each group. And then we checked the difference of temperature between CV17 and CV4, CV12 and CV4. For statistics, we used Independent T-test and SPSS version 17.0 for windows. Results : There is no statistically differences between hysterectomy group and non-hysterectomy group on CV17, CV12, CV4 and CV12-CV4 temperature. There is statistically significant difference between group and group on CV17-CV4 temperature. Conclusion : The result showed that the difference between Chonjung(CV17) and Kwanwon(CV4) is higher in group than non-hysterectomy group. Further study will be needed.
항해사의 피로가 해양사고에 미치는 영향 평가에 관한 연구
조준영,금종수,장운재,Cho, Jun-Young,Keum, Jong-Soo,Jang, Woon-Jae 해양환경안전학회 2010 해양환경안전학회지 Vol.16 No.2
최근 국내에서는 연간 약 600여건의 각종 해양사고가 발생하고 있다. 해양사고의 발생에 관한 국 내외 많은 연구와 분석에 의하면 해양사고의 약 70~80%가 인적요인에 의해 발생하고 있다. 여러 인적요인 중에서도 항해사의 피로는 매우 중요한 요인이다. 항해사의 피로가 해양사고에 중요한 역할을 한다고 인식되고 있음에도 불구하고 항해사의 피로도를 정량적으로 파악할 수 있는 연구는 거의 미미하다. 따라서 본 연구에서는 해양사고 종류별로 인적요인에 의한 발생률을 분석하고, 문헌과 5점 척도를 이용한 설문조사를 통하여 항해사의 피로에 영향을 미치는 중요한 5가지 요인을 추출하였다. 그리고 ISM법을 이용하여 피로요인에 의한 해양사고 발생 위험성의 평가요소를 계층구조화하였다. 마지막으로 AHP법을 이용하여 추출된 각 피로요인의 중요도를 구하고 항해사의 피로에 의해 발생할 가능성이 높은 해양사고의 순위를 결정하였다. 그 결과 수면시간 0.386, 스트레스 0.302, 건강상태 0.139, 휴식시간 0.099, 음주 약물 0.074순으로 높은 것으로 나타났다. 또한, 인명사상사고 0.328, 충돌사고 0.308, 좌초사고 0.195, 침몰사고 0.094, 화재사고 0.075로 나타났다. 따라서 중요도가 높은 요소들을 중심으로 제어방안을 마련해야 할 필요가 있다. Recently, about 600 cases of marine accidents occur annually in Korea. According to many studies and analyses on occurrence of marine accidents, 70~80% of marine accidents were caused by human factors. Among the human factors, navigation officers' fatigue is very important factor. Although navigation officers' fatigue serves as an important role in marine accidents, there is no method to exactly examine the degree of officers' fatigue. Accordingly, this study analyzed human factors according to types of marine accidents and extracted important five factors affecting navigation officers' fatigue through the questionnaire survey by means of literatures and 5-point scale. In addition, evaluation factors of marine accident risks caused by fatigue factors were divided and structured by using ISM. Lastly, it found out the importance of each fatigue factor drawn by AHP and decided marine accidents that were most highly caused by navigation officers' fatigue in order. At the result, weights were high as sleep time 0.385, stress 0.302, health condition 0.139, rest time 0.099, alcohol and drug 0.074 in fatigue factors, and death and injury 0.328, collision 0.308, grounding 0.195, sinking 0.094, fire accident 0.075 in evaluation factors of marine accident risks. Therefore, the control plan to lower marine accident risks should be prepared on the basis of high weight factors.
조준영(Cho, Jun-Young),양내원(Yang, Nae-Won) 대한건축학회 2013 대한건축학회논문집 Vol.29 No.11
This study is to investigate the status of total floor area in Korean general hospital. Total floor area is analyzed to hospital characteristics, region and number of beds. The purpose of this study is to provide data on the basis for architectural planning of total floor area. The subjects of this study is general hospitals through the evaluation of the healthcare accreditation. For comparison among hospitals is based on total floor area per bed. The analysis is focusing on the distribution range rather than status of complex statistical analysis. And for comparison, the objective distribution of the minimum, average, medium, and maximum values were written. The results of this study could be summarized as follows; Average of total floor area per bed is 80.2㎡ and distribution range is 33.7㎡ to 142.3㎡. National, public or tertiary hospitals has relatively large total floor area compared to private or general hospitals. In addition, according to the distribution area can be classified into four groups. First group is less than 60㎡/bed, this group is generally private general hospitals. Second group is generally private university hospitals that distributed in 60㎡/bed to 80㎡/bed. Third group shows the average hospital that distributed between 80㎡/bed to 100㎡/bed. Fourth group, more than 100㎡ /bed, is the National university hospitals or a company or foundation is sponsored tertiary hospitals.