• 한국산학기술학회논문지
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• 제15권6호
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• pp.3429-3434
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• 2014

TFT-LCD 패널 제조 산업에서 삼성전자는 후발기업으로써 선발기업인 일본의 샤프를 추월하여 선도하고 있다. 트리즈 시스템 분석을 활용하여 디스플레이 산업은 노트, 모니터, TV & 모바일 제품 시장으로 변화를 하였으며 시장(고객)의 요구속성도 변화를 함을 제시하였다. 또한 삼성의 TFT-LCD 기술 중 빠른 응답 기술 혁신 사례를 제시하였다. 예를 들면, 응답속도 개선을 위해 기존 사용하고 있는 액정 혼합물에 트리즈의 모순성, 물질-장 방법 등을 활용하여 개발된 고복굴절률 액정물질을 첨가하여 광시야 각, 빠른응답 특성을 갖는 신규 액정 혼합물을 개발하였다. 새로운 액정혼합물의 응답속도는 60%정도로 단축 개선되었다(기존 액정 사용 시 16 ms, 새로운 액정혼합물 사용 시 10ms).

• 한국정밀공학회지
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• 제21권5호
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• pp.166-173
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• 2004

Axiomatic Design has been developed as a general design framework during past two decades and TRIZ has been developed for a design tool over 50 years. Axiomatic design is quite excellent in that the design should be decoupled. When a design matrix is established, the characteristics of the design are identified concerning the coupling properties. If the design is coupled, a decoupling process should be found. However, axiomatic design does not specifically indicate how to decouple. In this paper, a design method is developed to use TRIZ in the decoupling process. The decoupling ideas are extracted from the substance field analysis and various methods in TRIZ. The mettled is applied applied to the conceptual design of a beam splitter for the laser marker and the results are analyzed.

• 한국식생활문화학회지
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• 제14권2호
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• pp.167-175
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• 1999

This study examines the effects of the Korean horticultural foods which are, by traditional wisdom, supposed to contain anti-aging substance. All twenty three kinds of plants are chosen as a sample for the experiment in which the content of three main anti-aging nutrients, -carotene, Vitamin C, and Vitamin E are respectively measured by Nilis, Colorimetric, and AOAC method. The result shows: among the samples, top six plants that contain the most -carotene content are high quality tea(Camellia sinensis), thistle(Cirsium japonicum Var.), Angelica keiskei, mulberry leaves(Morus alba l.), field horsetail(Equisetum arvensa), and carrot(Daucus carota), in order; top four for a Vitamin C contents are low quality tea, mulberry leaves, pine leaves(Pinus densiflora), and high quality tea, in order; top four for a Vitamin E contents are persimmon leaves(Diospyros mongolicum) tea, high quality tea, low quality tea, and pine leaves, in order. Drying or boiling process increases the content of -carotene and Vitamin E in high quality tea, dropwort(Oenanthe javanica), field horsetail, and wild aster(Ligularia stenocephala Marsumum et Koldzumi), while, in case of mulberry leaves, drying process lowers them. Vitamin C content strikingly decreases in heating and drying process.

• 한국산학기술학회논문지
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• 제16권10호
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• pp.6925-6931
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• 2015

LED(Light Emitting Diode)는 저 전력, 긴 수명, 고 휘도, 빠른 응답, 친환경적 특성으로 인해 조명, 디스플레이 등 여러 분야에 사용되고 있다. 백색광 발광다이오드 구현 방식에는 대표적으로 청색 LED 칩과 황색 형광체를 조합하여 백색광을 방출하는 유형이 사용 편리성, 경제성, 효율성 측면에서 LED 백라이트 유닛 및 LED 조명 제조에 가장 적합한 것으로 연구되어 실제 적용되고 있다. 백색광 구현 LED 칩 패키징 공정에서 청색 LED 칩에 황색 형광체에 실리콘을 혼합한 형광봉 지재를 토출하는 공정은 중요한 공정이다. 따라서 본 연구에서는 조명용 백색 LED 제조 공정에서 실리콘 봉지재를 토출하기 위하여 정전기력 방식과 보이스코일 모터를 이용하여 EHD 펌프 시스템을 개발하였다. 이를 위하여 인가전압 및 시간에 따른 유체곡면 형상을 확인하기 위하여 기초 토출 실험을 통해 최적의 토출 조건이 결정하였고 또한 검증을 위하여 실험계획법을 사용하였다. 검증된 토출 조건의 균일도를 확인하기 위하여 반복 토출 실험을 수행하였다.

• 보건교육건강증진학회지
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• 제18권2호
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• pp.129-140
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• 2001

Harmful environment around school area have been increased with socio-economic development in Korea. Those entertainment facilities have caused a negative effect on the learning environment in many schools. As a result of increased entertainment harmful facilities in school area, the numbers of deviant behaviors such as drinking, smoking, substance abuse and sexual activity among junior high school students have been significantly increased. Given this situation, the aim of this study was to describe the distribution of the facilities; to access applied(experience) of the facilities according to students demographic variables; and to identify the relationship between use of the facilities and students risk health behaviors such as smoking, drinking, substance abuse and sexual activity. The field theory was used to study the relationship between the use of the facilities and risk health behaviors among students. A self-administered questionnaire survey was conducted in Korea. 2,114 junior and senior high school students(middle and high school students) were recruited by the method of proportional stratified random sampling from June to July 2000. Results indicated that: 1) The rates of using game centers, PC rooms, Song rooms and comic rooms were 78.3%, 75.6%, 71.6%, and 34.3% respectively. 2) High school students visited the entertainment facilities significantly more than middle school students(p〈0.001). 3) The rates of using facilities near schools were significantly associated with parents job(p〈0.05). 4) The rates of drinking, smoking, drug abuse, and sexual activity were 21.6%, 11.9%, 4.3% and 1.6% respectively. 5) Risk health behaviors such as smoking(p〈0.001) and drinking(p〈0.001), amount of smoking and drinking(p〈0.001) and sexual activity(p〈0.05) were associated with the experience of using the facilities. Those who had drinking experience were more likely to go the facilities than those without drinking experience. Also, those who were smoker had higher probability of going using the facilities than non-smokers.

• 건축역사연구
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• 제7권4호
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• pp.29-47
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• 1998

The aim of this study is to understand the original methods of architectural composition in F. L. Wright's works, For this purpose, the principal thoughts based on his organic architecture was examined over all others, and the results of this study are as follows. 1. F. L. Wright knew Taoist Philosophy, especially Lao-tzu's thought about space based on traditional oriental arts included traditional japanese arts by his superior intuition. this is similar to Froebel Thought in the principal theory, that is, his own unique field of abstract architectural education with three-dimensional geometry learned through Froebel Gifts. 2. Space is reality ; such Lao-tzu's thought, reversed the sense of values, influenced F. L. Wright's way to accomplish his own continuous space. that is to say, he attempted taking precedence of spatial organization by the unit of three-dimensional module made the substance, Froebel Blocks (3, 4, 5, 6 Gifts) into non-substance, and trying to do the methods of continuous liberal composition in architecture. which is his original accomplishment, namely his mentioned 'democratic' because of judging the space and the mold of architecture as individualities. 3. F. L. Wright treated the space as a positive entity, so that he created his own architecture organically combined with spaces and forms. : This was the result that he comprehended both formative, physical worth in West and spatial, non-physical worth in East as equivalence. It is understood that F. L. Wright's works combined with East and West are the significance of his architecture and the progress of true internationalities and modernization in modern architecture. 4. From the analyses of his works, we knew the fact that F. L. Wright's architecture, especially in the spatial organization were performed by the reasonable methods with geometric system of Froebel Gifts. In the observation of our fundamental way of thinking on his architecture, this study shows the necessity to let us get out of preconceptions and conclusions that the organic architecture is mysterious and difficult, but to systematize and put his organic methods to practical use.

• 한국환경복원기술학회지
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• 제8권3호
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• pp.13-20
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• 2005

This study was conducted to suggest the ecological restoration methods of the decomposed granite cut-slope by organic soil amendment materials. Field test carried out for the cut-slope with organic soil amendment materials method and other three revegetation methods in Cheongwon. Test revegetation plants were Festuca arundinacea, Lolium perenne, Dactylis glomerata, Lespedeza cyrtobotrya, and Arundinella hirta. The result of this study can be summarized as follows; 1. The soil hardness, the soil acidity, and the soil humidity of organic soil amendment materials method were at a suitable value for plants growth. And it was better as compared with other three revegetation methods of cutting-rock slopes. 2. The result of toxic substance investigation, all items were at a suitable for standard law. 3. During one year after seeding, most plants germinated and especially Festuca arundinacea and Dactylis glomerata grows well. Seedling numbers were 336.7 per $m^2$(after 6 months), 183.3 per $m^2$(after 10 months), and 353.3 per $m^2$(after 6 months). Ten months later after seeding, plants showed 80% ground coverage. Visual rate, plant height, and growth rate were excellence, Also, high plant growth in spring better than autumn.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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• pp.1123-1125
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• 2005

본 논문에서는 3차원 공간에 종이와 같은 박막형 유전체가 있을 때 임의의 점에서의 전계$\vec{E}$를 구하기 위해 유전체의 분극벡터$\vec{P}$를 미지수로 하는 경계적분법(Boundary integral method)을 사용한다. 경계적분법의 사용으로 FEM 3차원 해석에 있어서의 요소분할의 난이성 및 계수 행렬의 대형화로 인한 컴퓨터 수행능력의 한계를 극복할 수 있다. 여기서 분극벡터$\vec{P}$를 구하기 위해 전하에서의 전계${ves{E}}_s$에 의한 유전체내의 분극벡터$\vec{P}$를 수식으로 정리하여 $[\vec{K}][\vec{P}]=[\vec{E}]$ 형태의 $\vec{P}$를 미지수로 하는 system matrix를 구성한다. 위의 system matrix 통해 구해진 분극벡터 $\vec{P}$를 이용하여 유전체 밖의 한 점에서의 전계세기 ${\vec{E}}_m$를 구한 후 우리가 구하고자 하는 전계$\vec{E}$를 계산한다.

• 사상체질의학회지
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• 제4권1호
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• pp.5-29
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• 1992

In this study, the author researched the process in which the philosophical basis of 'Sa Sang Medicine (四象醫學)' and its methodology build up the principles of Sa Sang Medicine, and then, examined how the principles were applied to the theoretical system of Sa Sang Medicine. The conclusion would be summarized as follows. 1. 'Nae Kyung Medicine (內經醫學)' was developed under the concept that the cosmos's order and its moving rule could be directly applied to that of human body, which corresponded to the 'Theory of Hwang-No (黃老之學)'. On the contrary, Sa Sang Medicine is a thoroughly human-oriented theory formed in the Confucianism system. 2. Lee Jae-Ma's Substantialism can be briefed into 'Mind 心' (Tae Keuk 太極), 'Mind-Body 心身' (Yang Eui 兩儀) and 'Activity-Mind-Body-Matter 事心身物' (Sa Sang 四象), which respectively represents one-elemented substance, two-elemented substance and four-elemented substance. Especially, Sa Sang was used as a basic framework in which he recognized all the objects and phenomena. So, most critical significance of his substantialism consists in the intention of Sa Sang type classifying. 3. By the method of Sa Sang type classifying, Lee Jae-Ma not only redefined the main concepts of confucianism and developed a unique philosophy of his own, but also, in the field of medical science, resystemized and re-explained the structure and function of human body. 4. From the recognition that Activity-Mind-body-Matter (Sa Sang) are four different existence forms of energy 氣 (or four variation types of energy), Yi Jae-Ma thinks that the viscera of human body have a vertical structure of 'four parts 四焦' (upper, mid-upper, mid-lower and lower parts) and its physiological function is operated by the rising and falling action of four energy presentations (sorrow 哀, anger 怒, joy 喜 and pleasure 樂). 5. In "Gyuk Chi Go 格致藁", Lee Jae-Ma understood the concept of joy, anger, sorrow and pleasure on the basis of nature-emotion theory 性情論 from the philosophical viewpoint. But, from the medical viewpoint of "Dong Eui Su Se Bo Won 東醫壽世保元", he understood them on the basis of vital energy theory. That is, sorrow, anger, joy and pleasure are expression of advance or reverse of nature vital-energy 性氣 and emotion vital-energy 情氣. 6. The rising and falling action principle of four energy presentations (sorrow, anger, joy and pleasure) which produces and helps each other is an identical principles of Sa Sang Medicine, distinguished from the Oh-Haeng 五行 circulating principle in Nae Kyung Medicine. Through this principle, Lee Jae-Ma explained the viscera physiology of human body, pathology & diagnosis and pharmacology.

• 분석과학
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• 제15권3호
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• pp.196-213
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• 2002

물 시료 중 알킬페놀류, 클로로페놀류 및 비스페놀 A의 동시분석을 기체크로마토그래피/질량분석기-선택이온검색법을 사용하여, US EPA 분석방법, isoBOC 유도체화 분석방법과 TBDMS 유도체화 분석방법을 비교하였다. 시료의 전처리는 유기용매로 추출하고 농축하여 분석한 방법과 XAD-4를 이용한 액체-고체 추출 후 isoBOC 유도체화와 TBDMS 유도체화를 실시하였다. 11종의 페놀류에 대한 회수율 실험은 3차 증류수에 각각 10 ${\mu}g/{\ell}$ (US EPA 방법) 또는 2 ${\mu}g/{\ell}$ (isoBOC 유도체화 분석방법과 TBDMS 유도체화 분석방법)의 농도를 대상으로 측정한 결과 각각 85.1~109.9%와 90.3~126.6%의 결과를 얻었다. 각 분석방법의 비스페놀 A에 대한 분석방법 검출한계는 US EPA 분석방법, isoBOC 유도체화 분석방법과 TBDMS 유도체화 분석방법이 각각 0.732 ${\mu}g/{\ell}$, 0.002 ${\mu}g/{\ell}$와 0.021 ${\mu}g/{\ell}$로 나타났으며, $5{\sim}400ng/{\ell}$의 농도 범위에서 isoBOC 유도체화 분석방법과 TBDMS 유도체화 분석방법 각각 0.9755~0.9981과 0.9908~0.9996의 직선성을 보였다. 폴리에틸렌 공장의 방류수를 대상으로 잔류량을 측정한 결과 일부페놀이 검출한계 이하에서 흔적으로 나타났다.