자기 광학적층을 갖는 광 도파로 아이솔레이터 제작을 위한 비가역적 위상변위에 대한 연구

양정수,김영일,변영태,우덕하,이석,김선호,이종창,Yang, Jeong-Su,Kim, Young-Il,Byun, Young-Tae,Woo, Deok-Ha,Lee, Seok,Kim, Sun-Ho,Yi, Jong-Chang 한국광학회 2003 한국광학회지 Vol.14 No.2

광 아이솔레이터의 제작을 위해 비가역적 위상변위 효과를 갖는 자기 광학물질을 클래딩 충으로 활용한 무한 평면 광도파로의 비가역적 위상변위 특성을 1.55 $\mu\textrm{m}$ 파장에서 계산하였다. 본 연구에서 사용된 무한 평면 광 도파로의 구조는 클래딩 충으로 자기 광학 물질인 Ce:YIG와 LNB(LuNdBi)$_3$(FeAl)$_{5}$)$_{l2}$)가 사용되었고, 각 각의 고유 패러데이 회전 Θ$_{F}$는 1.55 $\mu\textrm{m}$ 파장에서 4500$^{\circ}$/cm, 500$^{\circ}$/cm이다 가이딩 층은 1.3Q와 InGaAs로 이루어진 다중 양자 우물 구조를 사용하였다. 클래딩 층을 지나는 감쇄 전계에 따른 영향을 조사하기 위하여 기판의 굴절률이 InP와 공기의 굴절률을 갖는 경우에 대하여 도파 모드를 계산하였다. 여러 광 도파로 구조에서 비가역적 위상변위가 90$^{\circ}$가 되는 위상 변위기의 크기가 최소가 되는 길이와 최적화된 가이딩 충의 두께를 구하였다.다.다.다. The nonreciprocal phase shift characteristics of infinite slab optical waveguides with magneto-optic materials in the cladding layer was calculated at 1.55 ${\mu}{\textrm}{m}$ for optical isolators. The infinite slab waveguide structures considered in this paper were as follows. rho magneto-optic materials used as a cladding layer were Ce:YIG and LNB(LuNdBi)$_3$(FeAl)$_{5}$)$_{12}$,). Their specific Faraday rotations Θ$_{F}$ are 4500$^{\circ}$/cm, 500$^{\circ}$/cm at wavelength 1.55 ${\mu}{\textrm}{m}$ respectively. The guiding layer with multi-quantum well structure was used, and it consists of 1.3Q and InGaAs. In order to investigate the effect of evanescent field penetrating the cadding, layer, guiding mode characteristics were calculated for the cases when the substrate is InP and air. We calculated the minimum lengths of 90$^{\circ}$ nonreciprocal phase shifters and their optimum guiding layer thicknesses in various optical waveguide structures.res.s.

건강한 소아에서 발생한 원발성 폐렴구균성 복막염 1례

양정수,이민혜,최명범,박찬후,우향옥,윤희상,Yang, Jeong-Soo,Lee, Min-Hae,Choi, Myoung-Bum,Park, Chan-Hoo,Woo, Hyang-Ok,Youn, Hee-Shang 대한소아소화기영양학회 2002 Pediatric gastroenterology, hepatology & nutrition Vol.5 No.1

Primary peritonitis usually refers to a bacterial infection of the peritoneal cavity without a demonstrable intra-abdominal source. Most cases occur in children with ascites resulting from nephrotic syndrome or cirrhosis. Rarely, it may occur in previously healthy children less than 7years of age, usually a girl. Distinguishing primary peritonitis from appendicitis may be impossible in patients without a history of nephrotic syndrome or cirrhosis. Accordingly, the diagnosis of primary peritonitis is made only at laparotomy. We report one case of primary pneumococcal peritonitis in a 27-month-old female who underwent explorative laparotomy to discover the cause of suspicious intestinal perforation and mechanical ileus. Later, pneumococci were cultured in blood and gram-positive diplococci were isolated from the pus of peritoneal cavity.

경남 지역 가와사끼병의 역학적 조사

양정수,조은영,정혜성,황지영,이동진,노은석,최명범,박찬후,윤희상,우향옥,Yang, Jeong Soo,Cho, Eun Young,Jung, Hae Sung,Hwang, Ji Young,Lee, Dong-Jin,No, Eun Suk,Choi, Myoung-Bum,Park, Chan-Hoo,Youn, Hee-Shang,Woo, Hyang-Ok 대한소아청소년과학회 2002 Clinical and Experimental Pediatrics (CEP) Vol.45 No.7

목 적: 가와사끼병의 발병 원인은 아직 확실히 알려지지 않았지만 여러 차례의 역학조사와 임상 고찰을 통하여 원인으로 감염성 인자가 관여한다고 예측되고 있다. 본 연구에서는 경남 지역에서 역학 조사를 시행하여 발병 원인으로서 감염성 인자를 지지하는 지를 비교 분석하였다. 방 법: 1995년 1월부터 1999년 12월까지 5년간 동부 경남의 울산 동강병원과 중부 경남의 마산삼성병원, 서부 경남의 진주 경상대학교병원에서 가와사끼병으로 진단된 환아 717명을 대상으로 하였다. 각 병원에 연령, 성별, 발병일, 진단일을 적은 설문지를 보내어 연구 기간동안 가와사끼병으로 진단된 환아의 정보를 후향적 방법으로 조사하여 본원에서 종합하여 분석하였다. 결 과 : 1) 연도별 발생자수는 1995년 151명, 1996년 140명, 1997년 134명, 1998년 136명, 1999년 156명으로 연도에 따른 큰 차이는 없었고, 4월과 7월에 높은 환자 발생을 보였다. 2) 동부 경남에서 연도별 환자 발생의 최고치를 보인 달은 각각 1995년에 4월과 7월, 1996년에 4월과 7월, 1997년에 7월, 1998년에 4월, 1999년에 4월과 7월로 나타났다. 3) 중부 경남에서 연도별 환자 발생의 최고치를 보인 달은 각각 1995년에 4월, 1996년에 4월, 1997년에 4월과 7월, 1998년에 7월, 1999년에 7월로 나타났다. 4) 서부 경남에서 연도별 환자 발생의 최고치를 보인 달은 각각 1995년에 11월, 1996년에 8월, 1997년에 10월, 1998년에 12월, 1999년에 11월로 나타났다. 결 론 : 동부 경남과 중부 경남은 매년 유사하게 4월과 7월에 높은 환자 발생 빈도를 보인 반면 진주 지역에서는 두 지역과 다르게 늦가을과 겨울에 환자 발생 최고치를 보였다. 결론적으로 경남 지역내에서 단일 감염성 원인의 파급으로 인하여 발병 될 것이라는 가설은 검증할 수 없었으나 동부, 중부 경남에서 보인 매년 유사한 월별 발생 빈도를 볼 때 감염성 인자가 내재 되었음을 시사하는 소견으로 볼 수 있다. Purpose : The aim of this study was to determine the epidemiology of Kawasaki disease in the Kyung Nam area and to evaluate whether the results of this epidemiological study could support infectious etiology. Methods : We sent a questionnaire to three training hospitals in the Kyung Nam area and retrospectively reviewed their medical records of Kawasaki disease from Jun. 1995 to Dec. 1999. Results : The total number of patients was 717 cases, with little differences of annual prevalence during the five years. In all cases, the monthly prevalence of Kawasaki disease was high in Apr. and Jul. At the eastern of Kyung Nam, the monthly prevalence was high in Apr. and Jul. in 1995 and 1996, Jul. in 1997, Apr. in 1998 and Apr. and Jul. in 1999. In the central area of Kyung Nam, the monthly prevalence was high in Apr. in 1995 and 1996, Apr. and Jul. in 1997 and Jul. in 1998 and 1999. In the western Kyung Nam, the monthly prevalence was high in Nov. in 1995, Aug. in 1996, Oct. in 1997, Dec. in 1998 and Nov. in 1999. Conclusion : In the eastern and central areas of Kyung Nam, the monthly prevalence of Kawasaki disease was similarly high in Apr. and Jul. However, in the western district, the prevalence was high in late fall and winter. We could not prove the hypothesis that Kawasaki disease occurred with the spread of single infectious agent, but the a nnually similar prevalence in eastern and central Kyung Nam supported the infection theory for the etiology of the disease.

목재펠릿 도입에 따른 시설재배의 경제적.환경적 타당성 분석 -목재펠릿과 경유의 비교분석을 중심으로-

양정수,윤성이,Yang, Jeong-Soo,Yoon, Sung-Yee 한국유기농업학회 2013 韓國有機農業學會誌 Vol.21 No.3

With the efforts to development of renewable energy technologies, and increasing awareness to environmental issues, the usage of wood pallets has been increasing every year since the introduction of wood pallet technology to the domestic market. until 2009, majority usage of pellet boiler was in the residential houses. In an effort to increase the distribution of wood pellet boiler to cultivation facilities with high usage of fuels, The Ministry of Agriculture and Forestry has launched a distribution project of wood pellet boiler for fuel usage as a part of the agricultural and fishery energy efficiency projects. Although only small number of farms with a heat-culturing facility have replaced from conventional boiler to pellet boiler. Although part of reason for low usage of pallet boiler is lack of understanding and information of it, the main reasons are high initial cost and uncertainty of its cost efficiency. Also, most people from agricultural industry don't realize it's significance in terms of environmental benefit due to lack of understanding in 'resource circulation' and 'adopting to climate change'. In this study, first, we did a cost-efficiency analysis of the farm which uses a diesel boiler to grow cucumber, tomato, paprika. Then we replaced the diesel boiler to a pallet boiler and measured its cost-efficiency again. By comparing the cost-efficiency of the diesel boiler with the pellet boiler, we analyzed the economic viability of pellet boiler. Then we analyzed viability of pallet boiler usage in terms of 'resource circulation' and 'adopting to climate change'. As a result of our analysis, we have found out that under the current system of government support, the energy usage varies depends of the types crops grown and the higher the energy use, the more cost efficient it is to use the pallet boiler. Also, it is economically viable to use the pallet boiler in terms of 'resource circulation' and 'adopting to climate change'.

투과 광을 이용한 치아 균열 진단기 개발

양정수,서효기,이준석,최금연,조진형,Yang, Jeong Su,Seo, Hyo-Gi,Lee, Joon-Seok,Choi, Keum Yeon,Cho, Jin-Hyoung 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.5

In order to acquire clear images capable of diagnosing cracked tooth by light transmission, the optical properties of LED light source were examined. Based on the results, the prototype which basically consisted of LED light source, bandpass filter and commercial compact camera module was designed and manufactured. The wavelength and optical power of the LED in the prototype were 850 nm and 7 mW/Sr, respectively. In evaluation of the prototype using microscope, the observation of the crack with width of above $17{\mu}m$ was possible. In addition, image analysis to obtain shape information on the observed tooth cracks was carried out.

1980년대(年代) 한국(韓國) 현대무용사(現代舞踊史) 연구(硏究)

양정수(Yang, Jung Su) 한국체육철학회 1997 움직임의철학 : 한국체육철학회지 Vol.5 No.2

The main purpose of this study is to investigate the major trend and characteristics shown throughout the history of Korean modern dance in 1980`s by analyzing various factors which affected to the development of Korean modern dance, and to suggest a new direction of creative activity to Korean modem dance. For this the study are examined and in terms of the socio-cultural contexts of modern dance, as well as the educational and artistic aspects of the danceworks and performance activities at that time. The results of analysis of the major trend and characteristics shown by Korean modern dance in the 1980`s are as follows; First, Korean government began to reinforce the folicies of finacial support to the artworld for the re-establishment of the national culture and art of Korea. In addition, Korean dance world in 1980`s flourished vividly in that there were big events such as `Korean Dance Festival` `86 Asian Game` and `88 Seoul Olympic Game.` As a result, The Korean modern dance came to establishe as one of the popular cultures since 1980`s. Secondly, by enlarging the opportunity of dance education in korean university, Korean modern dance got to be popular remarkably and produced a number of professional dancer. Thirdly, the small-theatre-movement and outdoor performance prevaled activiely in the 1980`s made intimate conveyance of message to the audience possible through the free relationship between audience and the space of stage. Especially outdoor performance enlarged the expression scope and stage space, and also contributed to widespreadness of dance audience. And the artistic aspect of Korean modem dance shown in the course of its Koreanization was the beauty of formal expression based on the modern interpretation of the traditional style of dance.

심리제스처를 응용한 무용 교육프로그램의 질적 접근

양정수 ( Jung Su Yang ),홍선미 ( Sun Mi Hong ) 한국예술교육학회 2009 예술교육연구 Vol.7 No.1

본 연구는 무용교육에 있어서 표현예술에 적합한 프로그램을 개발하여 실질적으로 무용 전공생들에게 경험하게 하여 어떠한 인식변화가 이루어지며, 배우들이 사용하는 심리제스처 활용의 필요성을 무용수들에게 인지시켜주려는데 목적을 두고 있다. 본 연구의 참여자는 4명의 무용과 4학년 학생들이며, 12주 동안 프로그램에 참여하게 하여 참여 즉시 자기보고서 작성 및 심층면담을 통해 보다 정확하고 구체적인 체험결과를 얻어내었다. 본 연구는 심층면담과 자기보고서 작성, 참여관찰자 일지 등을 통해 다음과 같은 결과를 도출해 내었다. 새로운 `나`, 즉 예술적 기질 발견, 상상력에 의한 정서 구축, 자신감 획득의 긍정적 결과와 동작의 지나친 절제라는 부정적 결과도 얻게 되었다. 결론적으로, 무용교육에 있어서 학생 들에게 자신의 심리적 상태에서 자연스럽게 표출 되어지는 움직임, 즉, 상상력을 발휘할 수 있게 하는 기회 마련에 좀 더 노력을 기울여야 한다는 것이다. 심리구축에 의한 정서 표출은 자신에 대한 믿음과 관객과 공유할 수 있다는 장점을 가져다 준다는 점에서 무용수들이 표현예술을 해나감에 있어서 보다 수준 높은 모습으로 무대에 설수 있기를 기대하게 한다. 그러므로 본 연구가 교육 현장 및 실습현장에서 적극적으로 잘 활용될 수 있기를 바라며, 연극과 무용교육의 병행이 보다 적극적으로 이루어져서 무용수들의 내적 표현, 작품의 이해와 역할 분석능력이 발휘될 수 있는 기회가 마련이 될 수 있기를 바란다. This study aims to develop programs practically suitable for expressive arts in dance education, have dance majors experience such program, examine how their recognition changes and have them realize necessity of utilizing mental gestures used by the actors. Participants of this study are 4 4th graders of dance departments and they had participated in the program for 12 weeks. As a result of this study, they could achieve positive results such as finding new "self", improving their imagination and obtaining confidence, as well as negative results such as excessive moderation of motions, through in-depth interview, preparation of reports and daily log by observers. In conclusion, dancers are expected to appear on the stage with more developed version of expressive arts if they are given with more opportunity in dance education for displaying their imagination and naturally expressing their movement based on their own mental status. This study will be utilized in the education site as well as the actual practice.

교사와 부모의 무용 자율성 지지, 기본욕구, 즐거움 및 수업참여 의도간의 인과모형 검증

양정수 ( Jung Su Yang ),이선화 ( Sun Hwa Lee ) 한국예술교육학회 2011 예술교육연구 Vol.9 No.1

본 연구의 목적은 무용수업 맥락에서 초등학생들이 무용교사와 부모로부터 지각된 자율성 지지, 기본 심리적 욕구, 즐거움 및 수업참여 의도간의 인과적 관계를 검증하는 것이다. 본 연구에 316명의 4-6학년 초등학생들이 참여하였으며, 이들 중 남학생은 18명(5.7%)이며, 여학생은 298명(94.3%)이었다. 이들의 평균 나이는 10.99(±.81)세이고, 평균 무용학습 기간은 2.42(±1.54)년이었다. 연구목적을 위해 지각된 무용 자율성 검사지, 기본 심리적 욕구 검사지, 무용 즐거움 검사지, 그리고 수업참여 의도 검사지가 사용되었다. 자료는 기술통계, 주성분분석, 신뢰도 분석, 확인적 요인분석, 일원 분산분석, 일원 다변량분석, 상관분석, 그리고 구조방정식모형 분석을 통해 분석되었다. 결론적으로 무용교사와 부모들의 자율성 지지 수준은 초등학생들의 기본 심리적 욕구만족을 통해 긍정적인 정서경험을 가져오며 그로 인해 무용수업에 보다 적극적으로 참여하려는 의도를 촉진시킨다고 할 수 있다. 본 연구결과는 자기결정성 이론에 근거하여 초등학생들의 동기촉진과 관련하여 논의되었다. The purpose of this study was to examine the causal relationships among autonomy support perceived from teachers and parents, basic psychological needs, enjoyment, and intention for participation in elementary school dance classes. 316 elementary school students (boys 18, 298 girls) from grade 4 to grade 6 participated in the study. An average age of the students was 10.99(±.81) years old, and an average duration of learning was 2.42(±1.54) years. The students responded to a set of questionnaires measuring perceived autonomy support, basic psychological needs, dance enjoyment, and intention for class participation. Data were analyzed by descriptive statistics, principle factor analysis, reliability, confirmatory factor analysis, one-way ANOVA, one-way MANOVA, correlation, and structural equation modelling. Fourth, competence among three basic need satisfactions had positively a direct effect on the level of enjoyment in dance classes, but did not predicted intention for class participation via enjoyment indirectly. Autonomy and relatedness had positively a direct effect on intention for class participation, which, in turn, positively influenced to it via enjoyment indirectly. In conclusion, results of this study are suggested that teachers` and parents` autonomy support bring into positive emotions through elementary school students` basic need satisfactions and can facilitate the level of intention for class participation. The results of the study were discussed with students` motivation based on self-determination theory.

대학생의 신체활동 코칭에 필요한 선호경향 분석

양정수(Yang Jung-Su),유신환(Yoo Shin-Hwan) 한국코칭능력개발원 2010 코칭능력개발지 Vol.12 No.1

규칙적인 운동의 참여가 화훼종사자의 농부증 농작업 관련 건강행위 및 정신건강에 미치는 영향 : A Pilot Study

양정수(Yang, Jung-Su),노희태(Roh, Hee-Tae) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.5

The purpose of this study is to examine the effect of regular exercise on farmers’ syndrome, farming related health behavior, and mental health in floriculture workers. The subjects of this study were totally 402 floriculture workers and divided into two groups : exercise group(n=174) and control group(n=228). As a questionnaire survey was conducted from May to October, 2013 and were analyzed using x² test and independent t-test using SPSS 17.0. The results of the study showed that the farmers’ syndrome test scores and nine symptoms of mental health, which is somatization scores were significantly lower in exercise group compared to in control group(p<.001). It was also found that the farming related health behavior test scores was significantly higher in exercise group compared to in control group(p<.001). These results suggest that regular exercise has positive effects on farmers’ syndrome, farming related health behavior, and mental health in floriculture workers.