• Title/Summary/Keyword: 이호남

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Polyimide Film-coated Side-polished Optical Fiber Humidity Sensor (폴리이미드가 코팅된 측면 연마 광섬유를 이용한 습도 센서)

  • Kwang Taek Kim;Jae Chang Yang
    • Journal of Sensor Science and Technology
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    • v.32 no.1
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    • pp.51-54
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    • 2023
  • We investigated a humidity sensor based on a polyimide-coated side-polished optical fiber. The polyimide film absorbed moisture, causing the resonant wavelength of the sensor to shift to a longer wavelength owing to the changes in the optical properties of the film. The experimental results showed that the resonant wavelength of the device shifted by 17-18 nm when relative humidity changed from 30% to 90%.

Regional Divisions of Honam Region by Summer Precipitation and Variation Patterns over a Period of 10 days (하계강수량과 그 순변화형에 의한 호남지방의 지역 구분)

  • Park, Hyun-Wook
    • Journal of the Korean association of regional geographers
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    • v.11 no.1
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    • pp.101-113
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    • 2005
  • The seasonal variation and frequency of precipitation phenomenon of the Honam region in summer show strong local weather phenomena because of its topographical and geographical factors in southwestern area of Korea. The propose of this treatise is to induce variation patterns over a period 10 days of summer precipitation(that is one of the important elements of the precipitation characteristics), clarify the variations of their space scales, and study the subdivision of precipitation regions in Honam according to the combinations of precipitation amounts and variation pattern over a period of a 10 days of summer precipitation, using the mean values during the years 1994$\sim$2003 at 79 stations(the surface synoptic stations 16 AWS 63) of Honam region. The classified precipitation of a period of 10 days summer precipitation, and the principal component vector and the amplitude coefficient by the principal component analysis were used for this study. The characteristics of variation pattern over a period of 10 days of summer precipitation can be chiefly divided into four categories and the accumulated contributory rate of these is 78.0%. And the change patterns of summer precipitation during a period of 10 days in honam region are classified into 11 types from A to K And regional divisions of summer precipitation in Honam region can be classified into 18 types.

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ON THE PROPERTIES OF LOCAL HOMOLOGY GROUPS OF SHEAVES

  • PARK, WON-SUN
    • Honam Mathematical Journal
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    • v.2 no.1
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    • pp.13-18
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    • 1980
  • 모든 기호(記號)는 G.E Bredon의 저(著) Sheaf Theory의 기호(記號)를 따른다. A가 torsion free이며 elementary sheaf이라 하자. 그리고 L을 injective L-module이라 하자 $dim_{\varphi}X<{\infty}$이라면 support의 $family{\varphi}$와 locally subset z에 대하여 ${\Gamma}_{z}(^{\sim}Hom({\Gamma}_{\varphi}(L),L){\otimes}A){\simeq}H_0{^{z}}(X:A)\;H_{-p}{^{z}}(X:A)=0,\;p=1,2,3,$⋯⋯ 이며 support의 family c와 compact subset z에 대하여도 ${\Gamma}_{z}(^{\sim}Hom({\Gamma}_{c}(L),L){\otimes}A){\simeq}H_0{^{z}}(X:A)\;H_{-y}{^{z}}(X:A)=0,\;p=1,2,3,$⋯⋯ A가 elementary이면 locally closed z와 z에서 closed인 $z^{\prime}$ 그리고 $z^{\prime\prime}=z-z^{\prime}$에 대하여 exact sequence ⋯⋯${\rightarrow}H^{z^{\prime}}_{p}\;(X:A){\rightarrow}H^{z}_{p}(X:A){\rightarrow}H^{z^{\prime\prime}}_{p}\;(X:A){\rightarrow}$⋯⋯ 가 존재(存在)한다.

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Image generation and classification using GAN-based Semi Supervised Learning (GAN기반의 Semi Supervised Learning을 활용한 이미지 생성 및 분류)

  • Doyoon Jung;Gwangmi Choi;NamHo Kim
    • Smart Media Journal
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    • v.13 no.3
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    • pp.27-35
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    • 2024
  • This study deals with a method of combining image generation using Semi Supervised Learning based on GAN (Generative Adversarial Network) and image classification using ResNet50. Through this, a new approach was proposed to obtain more accurate and diverse results by integrating image generation and classification. The generator and discriminator are trained to distinguish generated images from actual images, and image classification is performed using ResNet50. In the experimental results, it was confirmed that the quality of the generated images changes depending on the epoch, and through this, we aim to improve the accuracy of industrial accident prediction. In addition, we would like to present an efficient method to improve the quality of image generation and increase the accuracy of image classification through the combination of GAN and ResNet50.

A Study on the Strategic Plan for Honam Sea Grant College Program (호남지역 Sea Grant 사업단의 발전방향에 관한 연구)

  • Nam, Taek-Kun;Lee, Don-Chool;Yim, Jeong-Bin
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.13 no.3
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    • pp.183-189
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    • 2007
  • In this paper, the strategic plan for Honam Sea Grant College Program will be discussed. The main activity area of Hanam SGCP is research and development, education and public information, outreach. Honam SG theme areas and priorities of its activity area will be determined to enhance the sustainable use and conservation of marine and fishery resources for Honam region. In the education and public information, marine education program executed by MOMAF and relative institutions is introduced and suitable program direction will be suggested. The network composition between HSGCP and other institution in domestic or abroad is also tackled. An interchange of beneficial information is accomplished through the effective network with other organizations. Finally the result of survey to develop the pending problems of Honam area will be discussed.

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Effective Screening Methods for Lipoxygenase Isozymes in Soybean Seeds (콩 lipoxygenase 효소의 효율적인 검정법)

  • Kim, Young Jin;Park, Tae Il;Cho, Sang Kyun;Oh, Young Jin;Kim, Tae Soo;Kim, Jung Gon
    • Korean Journal of Breeding Science
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    • v.40 no.1
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    • pp.26-30
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    • 2008
  • Normal soybean seed contains three lipoxygenase isozymes called L-1, L-2, and L-3, respectively, which are responsible for the generation of undesirable grassy-beany flavors. Simple and effective methods for the detection of lipoxygenase isozymes were developed in soybean seeds. Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) has been tried in separating these isozymes. It was done effectively on 7.5% separating gel and 4.5% stacking gel. However, no reliable method has been developed specifically for separating L-3, L-13 and L-23. Visual judging methods were based on the bleaching activities of lipoxygenase in contact with methylene blue and ${\beta}$-carotene. Sodium linoleate bleaching method was adopted to determine L-1 and L-2. Carotene bleaching and spectrophotometric methods were used to determine L-3. These systems were very rapid within one minute, furthermore only required a small piece of cotyledon (below 10 mg) and the other part could be used for generation advance after analysis. It was demonstrated that 200 seed samples could be analyzed per day by one laboratory assistant. The combination of visual judging methods and electrophoresis is suitable for breeding programs. It took 6.5 hours for analysis of 100 seed samples by one person.

Consideration of Changed Attitude of Discontinuity through the Depth -Example at Honam Coal Field and Around Suwon Area- (심도에 따른 불연속면의 형태 변화에 대한 고찰 -호남탄전과 수원인근 지역을 예로 하여-)

  • Lee, Byung-Joo;Choon, Sun-Woo
    • The Journal of Engineering Geology
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    • v.18 no.2
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    • pp.159-166
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    • 2008
  • We have a question about the changing possibility of orientation of discontinuities through the depth of under-ground. To know this, the data from Honam coalfield composed of shale, sandstone and coal and Suwon area which crops out mica schist, were analyzed the discontinuities measured by BIPS and Televiewer. In Honam coalfield the orientations of joints are changed at 30-40 m depth of underground and in Suwon area they are changed around 20 m depth. To compared the results from Honanam coalfield and Suwon area, there are different rock type and geologic structure. However, the attitude of the discontinuities are changing at 20-30 m depth of underground.