A Study on Electrical Characteristics of Outdoor Termination with Viscosity of Insulating Oil

Jin‑Wook Choe,Seok‑Hyun Nam,Jin‑Gyu Kim 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.3

Outdoor terminations connecting overhead transmission lines and power cables comprise a stress relief cone, which is made of silicone rubber, and insulating oil in a composite or porcelain insulator. The lower the insulating oil viscosity, the greater is its ease of injection. However, the swelling and the degree of change in the electrical properties of the silicone rubber increase with a decrease in the insulating oil viscosity. Therefore, the efect of the expected change in the electrical proper‑ ties of the silicone rubber on the outdoor termination quality should be examined before choosing the insulating oil. In this study, specimens made of insulating and semiconducting silicone rubber were made to swell by impregnating them with three types of insulating oils with diferent viscosities. The AC breakdown strength of the swollen insulating specimens and the volume resistivity and relative permittivity of the semiconducting specimens were measured. The Weibull statistical analysis showed that the lower the insulating oil viscosity, the lower was the AC breakdown strength in overlapping con‑ fdence intervals. The volume resistivity and relative permittivity of the semiconducting specimens changed considerably with a change in the viscosity of the insulating oil. In particular, the volume resistivity of the specimen impregnated with the lowest viscosity insulating oil was 1.57×106 Ω m, indicating loss of semiconducting properties. Furthermore, the efect of changes in the electrical characteristics of the specimens on the outdoor termination quality was examined by performing an electric feld analysis. Compared with the other oils, impregnation with the lowest viscosity insulating oil resulted in the electric feld strength at the edge of the outer semiconducting layer increasing by 15.7%.

Parthenogenetic Activity of Porcine Sperm Factor to In Vìtro Matured tured Porcine Oocyte

Park, Chun_Gyu,Jin-Ki Parκ,Sung-Woo Kim,Ju-Young Lee,Joo-hee Han,Seung-Eun Lee,Kyung-Nye Baek,Won-Chung Chang 한국동물생명공학회(구 한국동물번식학회) 2004 Reproductive & Developmental Biology(Supplement) Vol.28 No.2s

[스마트대전력 및 고전압기술] 가속전극의 적용에 따른 이온풍 발생 특성

김철규(Chol-Gyu Kim),장경민(Kyeong-Min Jang),김진규(Jin-GyuㆍKim) 대한전기학회 2019 전기학회논문지 Vol.68 No.5

Currently, the devices to generate ion winds in air are mainly composed of corona electrodes and induction(ground) electrodes, of which the corona electrodes mainly use needles or wires as electrodes and the induction electrodes use plate electrodes of ring or mesh type. Ion winds can be effectively generated through a diverse combination of corona electrodes and induction electrodes mentioned above. However, only changing the form and structure of corona electrodes and induction electrodes has a limit in raising the speed of ion winds. This paper conducted a study on the characteristics of ion wind generation by additionally installing acceleration electrodes in addition to corona electrodes and induction electrodes to increase the speed of ion winds.

부부(夫婦) 사이의 좁혀지지 않는 거리와 가부장적(家父長的) 질서(秩序)의 자기모순(自己矛盾) - 현진건(玄鎭健)과 은희경(殷熙耕)의 「빈처(貧妻)」를 中心으로 -

김진규 (金振規) ( Kim Jin-gyu ) 한국어문교육연구회 2019 어문연구(語文硏究) Vol.47 No.2

이 논문은 현진건과 은희경의 「빈처」를 ‘가면과 진상, 분과 멍’ 그리고 ‘판과 틀’ 등을 중심으로 분석함으로써 작품 속 가부장적 질서의 자기모순을 드러내는 것을 목표로 한다. 현진건의 작품은 ‘정신/남성’ 아래에 ‘물질/여성’을 복속시킴으로써 이 둘 사이의 갈등을 해결하고, 은희경의 작품은 아내가 전유하는 ‘비루한 삶’을 ‘신성한 삶’으로 재구성함으로써 부부 사이의 갈등을 해결한다. 하지만 겉으로 드러난 텍스트의 통일성에서 벗어나 작품 속 이항대립과 조화를 해체할 때, 두 가부장의 모순과 불안정한 지위가 분명하게 드러난다. 이들은 일상과 아내의 일방적인 헌신의 피상적 숭고화로 부부갈등의 근본 원인인 불평등한 성 역할의 고착화를 은폐하고, 자기중심적인 환상 속에서 조화를 경험한다. 자기중심적 환상 속에서 가까스로 유지되는 ‘가부장’의 정체성과 위상에 대한 분석은 가부장적 질서의 작동양상에 대한 비판적 인식으로 확장될 수 있을 것이다. This paper aims to reveal the self-contradiction of the patriarchal order in the “Poor Wife” by Hyeon Jin-geon and Eun Heui-gyoung. The work of Hyeon Jin-geon solves the conflict between husband and wife by submitting “the material life/woman” under the “the spiritual life/male”, and the work of Eun Heui-gyoung resolves the conflict by reconstructing the “humble life” of the wife-only into “sacred life.” When breaking away from the uniformity of the externally exposed text and deconstructing binary oppositions and harmony in the works, the contradictions and unstable status of the two patriarchs of the works are effectively revealed. They conceal the fixation of unequal gender roles, which is the root cause of marital conflicts, as a superficial sublime of unilateral devotion of wives, and experience harmony in self-centered fantasy. This study, which clearly revealed the self-contradiction of patriarchy, will contribute to reducing the influence of the hierarchy between male and female that is still continuing in our lives.

트레드밀 운동시 흡기근 테이핑이 폐활량에 미치는 영향

김민지,신수영,송월섭,조수진,최동락,황미진,황진규,박진현,김경,Dennis W. Fell 대구대학교 특수교육재활과학연구소 2011 再活科學硏究 Vol.29 No.1

이 연구는 트레드밀 운동과 키네시오 테이핑의 효과에 따른 폐활량의 변화를 알아보기 위해 26명의 비흡연자가 참가하였으며 키네시오 테이핑을 적용하지 않은 그룹과 키네시오 테이핑을 적용한 두 그룹으로 무작위로 배정하고 각 군들을 주 3회 6주간의 트레드밀 훈련을 실시하였다. 실험 전과 후, 스파이로미터를 사용하여 키네시오 테이핑의 적용 따른 폐활량 변화 효과를 측정하였다. 이 연구의 결과를 종합해보면 키네시오 테이핑을 적용 그룹에서 적용하지 않은 그룹에 비해 FVC, FEV1에서 유의한 증가를 보였다. 이러한 결과는 건강한 성인에서 키네시오 테이핑을 적용한 경우 키네시오 테이핑을 적용하지 않고 트레드밀 운동을 한 경우보다 폐활량의 향상에 효과적이라고 생각되어진다. The purpose of this study was to investigate the variation of vital capacity(VC) according to the effects of kinesio taping with treadmill exercise. Twenty-six non-smokers were participated in this research and these subjects were randomly assigned into two groups. To measure the VC variation effects of kinesio taping, spirometer was used. The collected data were analyzed statistically by using a paired Mauchly test and repeated measure ANOVA. The results of this study were as follows; A group: treadmill with kinesio taping B group: treadmill without kinesio taping. Between A and B, there were significant differences. In the case of A group, there was 11.66% increase of VC, during 3 weeks experiment(p<.01). In the case of B group, there were significant differences, 3.35% increase of VC, during 3 weeks taping intervention(p<.01). After 6 weeks experiment, the improvement of VC shown a significant difference with intergroup (p<.05). From this result, it was revealed that treadmill exercise with kinesio taping was effective to improve VC to healthy adult than treadmill exercise without kinesio taping.

시멘트 제조사 및 W/C 변화에 따른 콘크리트의 초기 강도발현 특성

金光華,裵正烈,김규도,이승훈,한천구 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)

This study is to investigate the influence of cement manufacturing company and W/C on the properties of fresh concrete, strength of hardened concrete and rebound value of P type Schmidt hammer. According to the result, setting time of concrete is shortened with and increase of W/C, and when cement made in A and B corporation is used in concrete, the final setting time is measured at about 10 hours and 13 hours. Compressive strength increases with elapse of time and decrease of W/C, and concrete using cement made in A corporation shows higher compressive strength and rebound value until 24 hours, but from 3rd day, the contrary tendency is shown. As for the properties of early strength, the strength develop fast with decrease of W/C, and the time when compressive strength of 5MPa is gained and the form can be removed, is about 15, 18, 21 hours and 20, 22, 27 hours at the W/C 40, 45, 50% in concrete using cement made in A and B Co. respectively. The correlativity between compressive strength and the rebound value, which a coefficient of correlation is over 0.97, is very favorable. Therefore this method is effective to estimate the strength of removing the form.

SVD 알고리즘 및 HMM을 이용한 얼굴 및 눈 패턴 검출

진경찬,김명남,신장규,손병기,조진호 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

The studies about automatic pattern detection of the eye and face from the human image acquired by the CCD image sensor have good applicabilities in the industry, home automation, and data communication field. In general, pattern detection method consists of feature based matching and template matching. In feature based matching, the feature vector is extracted with DLM(dynamic linking matching), EBGM(elastic bunch graph matching), HMM(hidden markov model) matching and knowledge based matching using statistical characteristics. In template matching, in general, the template vector is extracted with PCA(principal component analysis). When these method applied in the face and eye detection, each method has its own merits and some disadvantage. Therefore, by combined utilization of SVD(singular value decomposition) and HMM algorithm, is expected that we can selectively make use of each methods advantage and it result in improved detection accuracy. In this paper, we proposed the method for face and eye detection, which was combined by the two algorithms, to be suitable for the high speed image processing using DSP chip or microprocessor. In the beginning, template matching was followed by a template extraction using batch SVD algorithm and then face pattern was classified and recognized by HMM algorithm which is one of feature based matching technique. Finally, eye pattern detection was performed by pattern search neural network utilizing eigeneye image.

희귀 진세노사이드 Rg6, Rg4, Rk3 및 Rh4의 효능 연구

정규진, 이지현, 조수현, 송규용 충남대학교 약학대학 의약품개발연구소 2017 藥學論文集 Vol.32 No.-

The research on the efficacy of rare ginsenosides in comparison to that of major ginsenosides has not been performed systematìcally and is insufficient, Therefore, with based on the literature survey, the efficacy of the rare ginsenosides, such as Rg6, Rg4, Rk3, and Rh4, is reviewed, and the direction for further research is presented. Sìnce ginsenosides Rg6, Rg4, Rk3, and Rh4 show very diverse and strong activities in various disease models, such as antioxidant activity, anticancer activity, immunity enhancing activity, antì-microbial activity, etc., it can be strong potential candidates as new materials derived from natural materials for pharmaceuticals, cosmetics. and food industry. However, most research is limited to the in-vitro efficacy. Therefore, to systematically investigate the in-vivo effìcacy of individual ginsenosides is required for the application of the ingredients. To do that, it is essential to establish standardized mass production and iso-lation method for individual rare ginsenosides

김동진의 가곡 「수선화」에서 가사와 음악의 관계

나진규 민족음악학회 2001 음악과 민족 Vol.21 No.-

It is important to study composing art used in a work, because this gives us more information than the arrangement of the composer's life stories, exploration of his personal thoughts and disposition through his letters, books, dialogues, anecdotes etc. In the 19th century such study attracted marry people because of the necessity of description for music history, and criticism on the composition. But since the 20th century this kind of deep understanding of composition interests people more because this let them approach to the substance of the composition. This thesis is focused on composing art of Korean lyric song "Soo Sun Hwa"(Daffodil); what elements of composing art dominate the structure of music, and how these elements are related. Herein the relation between text and music is most importantly dealt because music styles or contents of songs are often strong influenced by language. In this song the procedure of musical contents follows the lyric contents but the style is independent each other. We can find this point for example in that three-line lyric structure is set to two period structure, and each part of composition is different in text structure but similar in music structure. This fact means that the composer tries to express the taste of the lyric but stress the unique musical characteristics of this work, which are different from lyric.

다문화시대의 문학 정전(正典)

고규진 한국독일언어문학회 2004 독일언어문학 Vol.0 No.23

Die vorliegende Arbeit gliedert sich in h i Teile. Der erste Teil berichtet uber die heutige Landschaft der Kanonforschung, in der sowohl die Geschichte der literarischen Kanonbildung, als auch das Problem der literaturgeschichtlichen Kanonbildung im Hauptinteresse stehen. Ferner wird der hegemoniale Charakter des gegenwiirtigen literarischen Kanons aus pststrukturalistischer, soziologischer, literaturwissenschaftlicher Perspektive kritisch erortert. Der zweite Teil zielt darauf, mit Hilfe von systemtheorischen Ansatzen die ubertriebene Wirkung der philosophischen, asthetischen Nonnen(wahr/falsch, schodhasslich) auf den Kanonisierungsprozess der Literatur zu luitisieren und die systemtheoretische Leitdifferenz interessant/langweilig als ein alternatives Kriterium fur die literarische Kanonbildung zu skizzieren. In diesem Kontext wird betont, dass die heutige Krise der Lita-atur zugleich die Krise des literarischen Kanons bedeutet. Dass in dem multikulturellen Zeitalter die Auslandsgermanistik in Rucksicht des unterschiedlichen kulturellen Werts den deutschen Kanon akzeptieren muss, belegt der letzte Teil dieser Arbeit am Beispiel des deutschen Bildungsromans. Dass die Bildungsidee und das Hummitiitsideal der deutschen Klassik fUr die Reflexionsprobleme der modemen Gesellschaft keine orientierende Kraft hat, unterstiitzt paradoxweise die Tatsacbe, warum die Kanonforschung zu einm wichtigen Gebiet der Kulturwissenschaft wird.