사과 겹무늬썩음병에 걸린 가지로부터 분산되는 병포자의 정량적 조사법 개발

양희정,최창희,우현,김대희,엄재열,Yang, Hee-Jung,Choi, Chang-Hee,Woo, Hyun,Kim, Dai-Hee,Uhm, Jae-Youl 한국식물병리학회 1998 Plant Pathology Journal Vol.14 No.4

On the basis of the fact that the pycnidiospore of Botryosphaeria dothidea, the causal fungus of apple white rot is a typical water borne spore, a method for quantitative analysis of pycnidiospore dispersal from the warts produced on the diseased apple tree stem was developed. The warts on which cracks developed either on or around them were cut off at the base, and shaked in the water for 4hours at 2$0^{\circ}C$, in which condition the maximum number of spores were released. The volume of shaking solution was calculated as 1 ml per one wart. At the end of shaking, Trio, a household detergent was added to the shaking solution to the concentration of 0.1%, and shaked for additional 10 minutes at 35$^{\circ}C$ to take off the spores attached on the glass ware. One milliliter of the spore suspension thus prepared were passed through transparent membrane filter (pore size : 3.0 ${\mu}{\textrm}{m}$), and the spores attached on the filter were counted under a microscope ($\times$200) after staining them with lactophenol supplemented with aniline blue. The results thus obtained were statistically consistent when at least 30 warts were used simultaneously in single shaking. This method can be applicable in the elucidation of ecology of sporulation and spore dispersal, and also in the screening of the sporulation inhibitor which can be used in the control of the disease by reducing the inoculum density.

장년 성인의 특성들을 고려한 웹기반 코스웨어 설계 방안

양희정,이석균,Yang, Hee-Jung,Lee, Suk-Kyoon 한국정보처리학회 2003 정보처리학회논문지 A Vol.10 No.5

As the use of computers and internet service has increased fast, various web-based coursewares for the educational purpose have been devoloped. However, the development of web-based coursewares for old-aged adults is far from satisfactory. Since most existing web-based coursewares are designed for the youth, they are not proper for old aged people to use confidently. In this paper, we analyse psychological, social and physical characteristics of old aged adults and propose the starategy for designing web based coursewares for them. Then, We apply the design strategy to develop the web-based courseware in Excel subject and analyse the effect of the design strategy by means of questioning and answring. 컴퓨터와 인터넷 사용의 급속한 확산에 따라 다양한 교육용 웹기반 코스웨어의 개발이 이루어지고 있다. 그러나, 장년 성인학습자를 위한 웹기반 코스웨어의 개발은 아직 미흡한 편이다. 기존의 웹기반 코스웨어는 주로 젊은 층을 대상으로 설계되어 있어 장년 성인들이 사용하기에 적당하지 않다. 본 논문에서는 장년의 성인들의 심리적, 사회적, 신체적 특성을 분석하고 이들을 위한 웹기반 코스웨어의 설계 방안을 제시한다. 그리고 제안한 설계 방안을 엑셀과목의 웹기반 코스웨어에 적용하고 그 결과를 설문조사를 통해 분석하였다.

무우자갈버섯 ( Hebeloma crustulineforme ) 을 위시한 한국산 담자균류 46종의 용혈활성 검색

양희정,정수현,김진향,정경수 ( Hee Jung Yang,Soo Hyun Chung,Jin Hyang Kim,Kyeong Soo Chung ) 한국균학회 1997 韓國菌學會誌 Vol.25 No.4

TFT-LCDs 게이트 전극에 적용한 Cu(Mg) 합금 박막의 건식식각

양희정,이재갑,Yang Heejung,Lee Jaegab 한국재료학회 2004 한국재료학회지 Vol.14 No.1

The annealing of a Cu(4.5at.% Mg)/$SiO_2$/Si structure in ambient $O_2$, at 10 mTorr, and $300-500^{\circ}C$, allows for the outdiffusion of the Mg to the Cu surface, forming a thin MgO (15 nm) layer on the surface. The surface MgO layer was patterned, and successfully served as a hard mask, for the subsequent dry etching of the underlying Mg-depleted Cu films using an $O_2$ plasma and hexafluoroacetylacetone [H(hfac)] chemistry. The resultant MgO/Cu structure, with a taper slope of about $30^{\circ}C$ shows the feasibility of the dry etching of Cu(Mg) alloy films using a surface MgO mask scheme. A dry-etched Cu(4.5at.% Mg) gate a-Si:H TFT has a field effect mobility of 0.86 $\textrm{cm}^2$/Vs, a subthreshold swing of 1.08 V/dec, and a threshold voltage of 5.7 V. A novel process for the dry etching of Cu(Mg) alloy films, which eliminates the use of a hard mask, such as Ti, and results in a reduction in the process steps is reported for the first time in this work.

Cu oxide의 형성과 H(hfac) 반응을 이용한 Cu 박막의 건식식각

양희정,홍성진,조범석,이원희,이재갑,Yang, Hui-Jeong,Hong, Seong-Jin,Jo, Beom-Seok,Lee, Won-Hui,Lee, Jae-Gap 한국재료학회 2001 한국재료학회지 Vol.11 No.6

O$_2$plasma와 H(hfac)을 이용한 Cu 박막의 건식 식각을 조사하였다. 휘발성이 큰 Cu(hfac)$_2$와 $H_2O$를 탈착시키기 위하여 $O_2$ Plasma를 이용한 Cu 박막의 산화와 생성된 Cu 산화막을 H(hfac)과의 반응으로 제거하는 공정으로 식각을 수행하였다. Cu 박막의 식각율은 50-700 /min의 범위를 보였으며, 기판온도, H(hfac)/O$_2$ 유량비, plasma power에 따라 변하였다. Cu 박막의 식각율은 기판온도 215$^{\circ}C$보다 높은 온도구간에서 RF power가 증가함에 따라 증가하였고, 산화 공정과 H (hfac)과의 반응이 균형을 이루는 최적의 H (hfac)/O$_2$ 유량비는 1:1임을 확인하였다. Ti mask를 사용한 Cu Patterning은 유량비 1 : 1, 기판온도 25$0^{\circ}C$에서 실시하였고, 30$^{\circ}$외 taper slope를 갖는 등방성 etching profile을 얻을 수 있었다. Taper angle을 갖는 Cu 건식 patterning은 고해상도의 대면적 thin film transistor liquid-crystal(TFT-LCDs)를 위래 필요한 것으로써 기판온도, RF power, 유량비를 조절한 one-step 공정으로부터 성공적으로 얻을 수 있었다. Dry etching of copper film using $O_2$ plasma and H(hfac) has been investigated. A one-step process consisting of copper film oxidation with an $O_2$ plasma and the removal of surface copper oxide by the reaction with H(hfac) to form volatile Cu(hfac)$_2$ and $H_2O$ was carried but. The etching rate of Cu in the range from 50 to 700 /min was obtained depending on the substrate temperature, the H(hfac)/O$_2$ flow rate ratio, and the plasma power. The copper film etch rate increased with increasing RF power at the temperatures higher than 215$^{\circ}C$. The optimum H(hfac)/O$_2$ flow rate ratio was 1:1, suggesting that the oxidation process and the reaction with H(hfac) should be in balance. Cu patterning using a Ti mask was performed at a flow rate ratio of 1:1 on 25$0^{\circ}C$\ulcorner and an isotropic etching profile with a taper slope of 30$^{\circ}$was obtained. Cu dry patterning with a tapered angle which is necessary for the advanced high resolution large area thin film transistor liquid-crystal displays was thus successfully obtained from one step process by manipulating the substrate temperature, RF power, and flow rate ratio.

국내 미출간 해외도서 review

양희정,Yang, Hui-Jeong 대한출판문화협회 2003 출판저널 Vol.334 No.-

웹2.0 기반의 웹서비스 사례연구 - Ajax를 활용한 DashBoard 구현 -

양희정 ( Hee-jung Yang ) 한국인터넷정보학회 2007 인터넷정보학회지 Vol.8 No.2

HLB 변화와 전상유화에 의해 형성된 에멀젼의 안정성

양희정(Hee Jung Yang),김재현(Jae Hyun Kim),조완구(Wan Goo Cho),박수남(Soo Nam Park) 한국유화학회 2008 한국응용과학기술학회지 Vol.26 No.2

Caprylic/Capric triglyceride-in-water emulsions stabilized by Nikkol HCO-60 and HCO-10 were prepared using emulsion inversion point method at different HLB values. Emulsions with various droplet sizes were formed, and emulsion inversion point was detected by electrical conductivity. The change in emulsion droplet sizes and long term stability were monitored using laser scattering method and visual method. The droplet sizes and stability of emulsions were affected by HLB of surfactant. At emulsion inversion point, the water volume fraction increased as the HLB of surfactants decreased. According to our analysis, this resulted from a tendency of forming the W/O (water-in-oil) emulsion as the HLB of surfactants was decreased. The emulsion inversion point was clearly detected by the microscope and the electric conductivity meter. Nanometer-sized emulsion was obtained at the optimum HLB by using emulsion inversion point method. The main pattern of instability of emulsions in HLB 12 and 13 systems was Ostwald ripening. However, The patterns of instability of emulsions below 11 of HLB systems were Ostwald ripening and coalescence. All emulsions produced with surfactants in the range of HLB 8-13, creaming caused by density difference between water phase and oil phase.

NCS 분류체계에 따른 보건행정 관련 학과의 직무별 직업기초능력과의 상관관계 연구

양희정(Yang hee-jeong) 한국사회안전학회 2016 한국사회안전학회지 Vol.11 No.1

본 연구는 NCS기반 보건행정 관련 학과의 직무별 직업기초능력에 대한 상호 상관성을 규명하는데 연구의 목적을 갖고 있다. 그 연구결과를 보면 다음과 같다. 전체 보건계열 직무들 중 NCS 분류체계 대분류 06. 보건·의료 > 중분류 01. 보건 > 소분류 02. 보건지원 > 세분류 01. 병원행정(병원행정사), 02. 병원안내(병원코디네이터) 및 대분류 06. 보건·의료 > 중분류 01. 보건 > 소분류 01. 의료기술지원 > 세분류 14. 의료정보관리(의무기록사)의 직무별 능력단위와 능력단위별 직업기초능력에서 직무성격과 수준에 비추어 볼 때 차이가 있음을 알 수 있다. 이러한 NCS 분류체계는 종합병원급의 직무를 각 능력단위로 분류하고 이에 따른 능력단위별 직업기초능력이 분류되어 3개 직무의 차이를 나타내고 있다. 그러나 병원 및 의원급 같은 경우는 3개의 직무를 한 사람이 다방면으로 모두 수행하고 있기 때문에 모든 의료기관을 NCS 분류체계에 따라 동일하게 적용되기 쉽지 않고, NCS 분류체계에 따른 능력단위별 직업기초능력 또한 동일시하여 적용되기 쉽지 않다. 따라서 3개의 직무를 모두 수행하기 위한 직업기초능력의 과목을 도출할 수 있도록 기초자료를 제시한다. This study is intended to look into the relationship between jobs and professional basic abilities based on the NCS in the health administration-related department. The results of this study are as follows. In light of job characteristics and levels in the competency unit by job and the professional basic ability by competency unit of large classification 06. health·medical care > medium classification 01. health > small classification 02. health support > sub-classification 01. hospital administration(hospital administrator), 02. hospital guidance(hospital coordinator) and large classification 06. health·medical care > medium classification 01. health > small classification 01. medical technology support > sub-classification 14. medical information management(medical record administrator), there was a difference in the NCS classification system of health-related jobs. In the NCS classification system, general hospital jobs were classified into each competency unit, and professional basic abilities were classified according to competency unit, which there was a difference in 3 jobs. For hospital and clinic, it isn"t easy to have equal application of professional basic abilities by competency unit as well as all medical institutions according to the NCS classification system, because one person have performed all 3 jobs in many ways. Consequently, this study put forward basic data to draw the subject of a professional basic ability for performing all 3 jobs.

종병(宗炳)의 ‘와유(臥遊)’개념에 관한 연구

양희정 ( Yang Hui Jeong ) 한국철학사연구회 2021 한국 철학논집 Vol.0 No.68

본 논문에서는 종병(宗炳)의 화론서인 『화산수서(畵山水序)』속 ‘와유(臥遊)’ 개념이 후대에 끼친 영향에 대하여 북송 곽희(郭熙)의 『임천고치(林泉高致)』와 조선 초기 사대부들의 와유적 감상법과 관련하여 살펴보려고 한다. 와유는 위진남북조 시기 종병에 의해 제기된 개념으로 산수화 속 공간을 정신 해방의 공간으로 보는 것이다. 그가 늙고 병들게 되었을 때 다시는 명승고적을 유람하지 못하게 되었음을 안타까워하며 그동안 자신이 유람했던 자연의 경치들을 그림으로 그려 감상의 입장에서 다시 한 번 느끼고자 한 것으로 간접적인 체험방법이라 할 수 있다. 이러한 와유개념은 북송의 곽희, 동기창, 석도를 지나 보편적으로 받아들여지게 되면서 동양 산수화의 기본개념이 되었다. 그중 곽희의 화론서인 『임천고치』의 도입 부분인 「산수훈」에 있는 산수화의 뜻과도 상통하는 부분이 있다. 이러한 간접 체험방법은 송대 사대부들과 조선 초기 사대부들에게서도 나타난다. 이들은 현실 속 정치적 갈등으로 인한 심리적 불안감을 해소하는 공간으로 진취(進就)와 퇴은(退隱)의 모순된 이중심리를 ‘중은(中隱)’의 형태로 합리화 시키는 것으로 사대부들에게서 나타나는 이중적 태도라고 할 수 있다. 유가적 삶 속 꿈꿨던 은거의 삶을 간접체험하는 공간으로써 산수화를 즐기는 것이다. 산수화 속 공간은 감상자가 산수 속 자연을 보며 창작자가 불어 넣은 감성을 나누는 공간이 된다. 비록 산수 속의 이상향은 갈 수 없는 미지의 공간이지만, 산수화는 상상 속 간접체험 공간으로 ‘유’를 즐길 수 있는 곳이 된다. 조선 초기 사대부들 또한 어지러운 현실 속 자신이 갈 수 없는 이상향을 그려 낸 작품을 감상하며 그 속에서 정신적 소요를 즐기는 것이다. 현실에서 실현할 수 없는 이상향에 대한 동경을 산수화를 통하여 간접적으로 체험한다. 현실의 유가적 삶 속에서 자신의 마음을 온전히 드러내고 풀어낼 수는 없지만 정신의 측면에서 정신의 무한한 확장과 가능성을 열어 놓는 것이라 볼 수 있다. This paper searched the concept of ‘Wayu’ in the Zongbing's painting book and its influence on next generations. Also, it looked into way to appreciate towards ‘Wayu’ in Zongbing's ImcheonGochi among the gentry in the early Joseon Dynasty. ‘Wayu’ is a concept raised by Zongbingg during the era of Wei and Qin Dynasty and sees spaces in landscape paintings as mental liberation. It was an indirect method to take a tour of historic sites when he bore painfulness because he no longer allowed to go out again, getting old and sick. So, he draw pictures of natural sceneries where he had been there. ‘Wayu’ had been the basic concept of the landscape painting and became widely accepted by Guoxi, Dongqichang, and shitao in the era of Northern Song. Among them, there is a part that is in line with the meaning of the landscape painting in the introduction part of 'Sansuhun' of Guoxi's painting book "ImcheonGochi." Such an indirect experiencing method also appeared among the gentry in the era of both Song and the early Joseon Dynasty. The method was used as virtual places for the gentry where they relieved their psychological anxiety caused by political conflicts. Those places refer to 'JoongEun', which justified contradictory double psychologies of initiative and regression in their lives. They enjoyed landscape paintings to dream of living in a secluded life. The spaces in landscape paintings helped share the emotions of the artist with appreciators. Although the utopia in landscape paintings was an unknown place where they couldn't go, landscape paintings were the indirect virtual spaces in their imagination and they could enjoy 'Yu'. In the early Joseon Dynasty, the gentry also enjoyed the utopia in landscape paintings where they couldn't go in the dizzy reality. They experienced illusions through landscape paintings indirectly. This means they couldn't fully open their mind in real life, but they could open and expand possibilities via landscape paintings.