• Title/Summary/Keyword: 1394.1

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1.5' Full Color ECR(Enhanced Contrast Ratio) OLED Using Black Layer Technology

  • Kang, Seong-Jong;E, Jung-Yoon;Roh, Byeong-Gyu;Lee, Jong-Ho;Kim, Woo-Young
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1394-1397
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    • 2005
  • Hyundai LCD Inc. and LUXELL Technologies Inc. have jointly developed a 1.5" passive matrix full color OLED display ($132{\times}RGB{\times}96$, 111ppi) with characteristics of enhanced contrast ratio using black layer technology. This prototype ECR OLED was fabricated with the structure of ITO/HIL/HTL/RGB EML/HBL/ETL/LiF/Black Layer/Cathode and showed significant improvement of contrast ratio comparing with that of non-filtered OLED as well as compatible with circular polarizer OLED

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An Analytical Study on the Disease Pattern of a Rural Population in Korea (하기(夏期) 무의촌진료(無醫村診療)에서 나타난 우리 나라 일부(一部) 농촌주민(農村住民) 의 질병양상(疾病樣相))

  • Meng, Kwang-Ho;Lee, Se-Hoon
    • Journal of agricultural medicine and community health
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    • v.2 no.1
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    • pp.65-72
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    • 1977
  • This study was made with 1394 clinical records obtained by a mobile charity health team in a rural Korea for 10 days from July 23 to Aug. 1, 1977 to see the disease pattern of the rural population in Korea. The health team consisted of 7 physicians in different clinical departments of the St. Mary's Hospital tried to cover as many as patients in that area by giving full informations and instructions before starting health services. which supposed to minimize the omissions of patients visits in that area. The proportion of each disease as well as its order in terms of the number of patients was reviewed by matching with age and sex distribution of patients, and with the duration of illness (complaints). Major findings obtained in this analysis were as follows; 1. Among 1394 patients, 536 (38.5%) was male and 858(61.5%) was female. As to the age distribution of the patients. those who are in the age group of 10-19 showed the highest proportion of 15.6% and those who are in the age group of 5-9 and 40-49 was the next with the proportion of 15.4% and 15.2% respectively. 2. The most prevalent cause of general morbidity were diseases of digestive system, diseases of nervous system and sensory organs, diseases of respiratory system, and diseases of skin and subcutaneous tissue in order. And their proportions among all patients were 21.8%, 20.7%, 14.5%, and 12.4% in respectively. The order of the diseases ranked by the number of patiens was slightly different in female population from that of total population, i. e. diseases of nervous system and sensory organs was the first. diseases of digestive system was the second, and the diseases of circulatory system was the third. 3. 23.2% of all patients were found to have had symptoms relating to their illness for more or less 5 years, and 18.3%, for more or less 6 months. Looking at the duration of illness by diseases, 28.6% of digestive tract disease patients and had the relating symptoms for about 1 week while 24.3% had had the symptoms for about 5 years, and in diseases of nervous system and and sensory organs, many(33.7%) had had symptoms for relatively long period (more than one year). On the other hand, in diseases of respiratory system, those who had had the relating symptoms for about 1 month was 24.3 % among all patients in this category and those who had had the symptoms for less than 1 week was 32.2%. 4. The duration of illness (complaints) was longer in females than in males and shorter in younger age groups than in older age groups.

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Quality Characteristics of Radish Treated with Environmentally-friendly Red Clay-processed Materials (친환경 황토 가공 신소재 적용 재배법에 의한 무의 품질 특성)

  • Seo, Yoojin;Yoon, Sungjin;Kim, SungGun;Cho, Wonwoo;Lee, Sora;Kang, Ho-Duck;Yoon, Moon-Young;Park, Jung-Keug;Yoo, Byoungseung;Chang, Yoonhyuk;Lee, Youngseung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.9
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    • pp.1394-1399
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    • 2014
  • Quality characteristics of radish treated with red clay-processed materials (RCPM) were investigated. Two different types of treatments using RCPM including a control were farm-raised in identical environments. General components, texture, nutrients, and antioxidant activities were performed. For general components analysis, total amounts of crude fat and ash were higher in radish treated with RCPM than in control. RCPM-treated radish showed higher contents of minerals (P, Mg, K, Zn, Mn, and Na) and vitamins (vitamin C, thiamin, and riboflavin) than those of control. RCPM-treated radish exhibited higher DPPH radical scavenging activities and total polyphenol contents than those of control, indicating higher antioxidant activities of radish raised by RCPM. In the textural analysis following refrigeration for 4 weeks, RCPM-treated samples showed a more stable texture and higher hardness values than those of control. Therefore, these results indicate that RCPM can be used to produce high-value radish of premium quality.

Human and Animal Study on the Natural Food for Obesity and Metabolic Syndrome Risk Factors (비만 및 대사성증후군 위험인자에 대한 천연물 식품의 인체 및 동물 효능연구)

  • 문근아;최선미;김선형;김성수;강지연;윤유식
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.32 no.8
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    • pp.1394-1400
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    • 2003
  • In this study a natural composition containing oriental herbs, KSH28, for reducing obesity and metabolic syndrome was constructed and its efficacy was evaluated in animal and human. To investigate the anti-obesity effect of KSH28, animal study was conducted using high fat diet-induced obese mice. KSH28 significantly decreased body weight and adipose tissue in high fat diet-fed obese mice. The mean size of fat cells in adipose tissue was significantly reduced. Glucose and triglyceride levels were also significantly decreased. To elucidate its efficacy in human, a natural food containing KSH28 with grains, vegetables, vitamins, minerals and dietary fibers was constructed and 40 subjects (8 male and 32 female) were tested for the change of body composition, blood pressure and blood lipid profile. All subjects had 2 pack (309 each) of natural food per day for 4 weeks. Compared to the baseline value, body fat was significantly reduced, however, water, protein and mineral contents in the body were not changed, suggesting selective reduction of fat tissue. Blood pressure and serum lipid profile were significantly decreased to reduce risk for metabolic syndrome. Serum GPT, a liver function indicator, was not changed and no significant side effects were detected. Therefore, it was shown that the KSH28 is a safe and effective composition for reducing obesity and metabolic syndrome.

Syunthesis of Silica Aerogel at Ambient Pressure and Characterization (I) (실리카에어로겔의 상압합성 및 특성연구(I))

  • 강신규;최세영
    • Journal of the Korean Ceramic Society
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    • v.33 no.12
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    • pp.1394-1402
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    • 1996
  • The Silica gel with the density of 0.2g/cm3 and porosity of 90% was synthesized. The silica wet gel was dried and heat-treated under the ambient pressure after modification of the wet gel surface by TMCS. Specific surface area total pore volume and mean pore radius of dried gel were all increased with increasing heat treatment temperature and confirmed about 1400m2/g, 4.5cc/g and 8 nm respectively after heat treatment above 25$0^{\circ}C$. But the pore size distribution of dried gel was in the range of 1-100nm and was almost indepen-dent of temperature. As the result of external shape pore characteristics and microstructure of gel using SEM similar properties were observed between the silica gel synthesized in this study and the silica aerogel through the super critical drying.

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Preparation and Characterization of Activated Henequen Fiber

  • Jeong, Jong-Seon;Lee, Young-Seak;Yang, Xiao Ping;Ryu, Seung-Kon
    • Carbon letters
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    • v.10 no.4
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    • pp.339-344
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    • 2009
  • Henequen fiber was air-stabilized, carbonized, and steam-activated to obtain high surface area activated henequen fiber (AHF). Thermal behavior of henequen fibers has been studied by TGA. The structural morphology and characteristics were observed by SEM and BET surface area measurement. The yield of AHF from natural henequen was in the range of 20~25 wt%. Mesopores (2~2.5 nm) were developed on the AHF as the activation temperature was raised up to $700^{\circ}C$, and the band of mesopore size distribution moved to 15~30 nm when the activation were carried out at $900^{\circ}C$ for 30 min. The specific surface area and the total pore volume were about $1394\;m^2/g$ and $1.30\;cm^3/g$, respectively at this activation conditions.

A New Correlation on Heat Transfer Coefficient in Horizontal Multi Channels (수평 다채널에서의 열전달 계수에 관한 새로운 상관식)

  • CHOI, Yong-Seok;LIM, Tae-Woo
    • Journal of Fisheries and Marine Sciences Education
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    • v.28 no.5
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    • pp.1388-1394
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    • 2016
  • This paper presents a experimental study of two-phase flow boiling of FC-72 in multi channels. Flow boiling heat transfer coefficients are obtained with mass flux ranging from 152.9 to $353.9kg/m^2s$ and heat flux from 5.6 to $46.1kW/m^2$. The experimental results show that the heat transfer is governed by nucleate boiling mechanism in the low heat flux region. However, it is found that the effects of nucleate boiling and forced convection boiling are combined as the heat flux increases. A new correlation to predict the heat transfer coefficient is developed by using the dimensionless number such as Reynolds number, Weber number, boiling number. This correlation shows good predictive accuracy against the measured data.

A Fuzzy Microprocessor for Real-time Control Applications

  • Katashiro, Takeshi
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1993.06a
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    • pp.1394-1397
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    • 1993
  • A Fuzzy Microprocessor(FMP) is presented, which is suitable for real-time control applications. The features include high speed inference of maximum 114K FLIPS at 20MHz system clocks, capability of up to 128-rule construction, and handing of 8 input variables with 8-bit resolution. In order to realize these features, the fuzzifier circuit and the processing element(PE) are well optimized for LSI implementation. The chip fabricated in 1.2$\mu\textrm{m}$ CMOS technology contains 71K transistors in 82.8 $\textrm{mm}^2$ die size and is packaged in 100-pin plastic QFP.

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Ferroelectric properties of NKN Thin Films prepared by Metal Organic Decomposition method (유기금속열분해 방법으로 제작된 NKN 박막의 강유전특성)

  • Kim, Kyoung-Tae;Kim, Chang-Il;Lee, Sung-Gap
    • Proceedings of the KIEE Conference
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    • 2006.07c
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    • pp.1394-1395
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    • 2006
  • $(Na_{0.5}LaK_{0.5})NbO_3$ (NKN) thin films were fabricated by the alkoxide-based MOD method. NKN stock solutions were made spin-coated onto the Pt/Ti/$SiO_2$/Si substrate. The structural properties of the NKN thin films examined by x-ray diffraction. The perovskite phase was obtained as a function of the annealing temperature from $550^{\circ}C$ to $700^{\circ}C$ for 1h. The crystallinity and grain size of the NKN thin films increased with increasing annealing temperature. The dielectric constants and loss of the NKN thin films annealed at $650^{\circ}C$ ($t_{eq}$=2.35 nm) showed 323 and 0.025.

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An Improved Treatment of Animal Wastewater

  • Oh, I.H.;Kim, B.S.;Lee, S.R.;W.J.Maeng
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1993.10a
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    • pp.1379-1394
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    • 1993
  • The purpose of this study is to examine the purification efficiency of the septic tank method which has been applied by the most of Korean livestock farms, in terms of anaerobic and aerobic treatment. Except several days in summer, BOD of effluent shows 1,500 -3,000 ppm by anaerobic process. In most cases , it exceeds according to the seasons show an increase by decrease of temperature. The removal effect on T-N is hardly found. The suspended solids contents of effluent are reduced to the level of 50-90%. Although BOD contents of effluent are kept high in the beginning, the removal rate of BOD shows 80 percent in the latter half by the aerobic treatment . The removal efficiency of total nitrogen does not appear through the experimental period, but the contents of T-N are not increased in the aerobic process unlike in the anaerobic process. The total phosphorous contents in effluent keep a constant level of 14 mg/L in average. The removal rate of phosphorous shows 91 percent i the last stage.

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