• Title/Summary/Keyword: Kim Sung-ok

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A Study on Edge Detection of Image using Morphology Arithmetic (형태학적 연산을 이용한 영상의 에지 검출에 관한 연구)

  • Kim, Jae-Seog;Jung, Sung-Ok;Oh, Moo-Song
    • Proceedings of the Korea Information Processing Society Conference
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    • 2002.04a
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    • pp.791-794
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    • 2002
  • 본 연구는 영상분석에서 이진 영상의 잡음제거 및 에지 검출을 위한 연구로 임펄스 잡음이 존재하는 영상의 잡음 제거는 임펄스가 크거나 잡음 에너지가 상대적으로 작을 때는 기존의 메디언 필터를 이용하여 잡음을 제거하지만 임펄스 잡음과 같지 않는 잡음이 존재하는 경우에는 본 연구에서 제안한 형태학적인 연산을 적용하여 잡음을 제거하고, 에지를 검출하는 방법을 제안한다.

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Optimum Design of a Linear Induction Motor for Electromagnetic Pump using Genetic Algorithm (유전알고리즘을 이용한 전자기 펌프용 선형유도전동기의 최적설계)

  • Kim, Chang-Eob;Hong, Sung-Ok
    • Proceedings of the KIEE Conference
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    • 2000.07b
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    • pp.744-746
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    • 2000
  • This paper presents an optimum design of a linear induction motor(LIM) using genetic algorithm(GA). Sequential unconstrained minimization technique(SUMT) is used to transform the nonlinear optimization with constraints to a simple unconstrained problem. The objective functions of LIM such as trust, weight are optimized and the result was applied to the design of linear induction pump.

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The study on the Electrical Property of the Fuse Element Notch (휴즈엘리먼트의 노치형태에 따른 전기적 특성 연구)

  • Lee, Sei-Hyun;Lee, Byung-Sung;Han, Sang-Ok;Kim, Jong-Suk;Lee, Deok-Chool
    • Proceedings of the KIEE Conference
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    • 1993.07b
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    • pp.1153-1155
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    • 1993
  • This paper presents some experimental result of current limiting, fusing and short circuit interruption behavior by notch construction of thin copper film $35{\mu}m$ on epoxy substrate. A fuse-link having elements of copper film provided high-precision small holes by photo eatching process.

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Bone formation-suppressing Activities in Osteoblast like-UMR106 cells by high Glucose contents

  • Jung, In-Ok;Kwon, Eun-Hee;Kim, Sung-Jin
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.125.1-125.1
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    • 2003
  • Diabetes is complex in nature but it gets further complicated in associating with number of other diseases like hypertension, ratinal disintegration, renal failure and many others. The latest addition to diabetic-complication is its association with bone degeneration disease:osteoporosis, which is a form of bone loss. In both the types of primary diabetes, the insulin dependent diabetes militus (IDDM) as well in insulin independent diabetes millitus (IIDM) the glucose metabolism is altered. (omitted)

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A novel potassium channel opener, KR-31378, protects cortex neurons from oxidative injury by restoring antioxidant enzyme activities and glutathione levels

  • Kim, Sun-Ok;Cho, In-Sun;Lee, Dong-Ha;Lim, Hong;Yoo, Sung-Eun
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.197.1-197.1
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    • 2003
  • Neuronal hyperexcitability followed by high level of intracellular calcium and oxidative stress play critical roles in neuronal cell death in stroke and neurotrauma. Hence, KR-31378, a novel benzopyran derivative was designed as a new therapeutic strategy for neuroprotection possessing both anti-oxidant and potassium channel modulating activities. In the present study, we tested for its neuroprotective efficacy against oxidative stress-induced cell death in primary cortical cultures and further investigated its neuroprotective mechanism. (omitted)

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CoMFA and CoMSIA 3D QSAR Studies on Pimarane Cyclooxygenase-2 (COX-2) Inhibitors

  • Suh, Young-Ger;Lee, Kwang-Ok;Park, Hyun-Ju;Kim, Young-Ho;Moon, Sung-Hyun
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.250.1-250.1
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    • 2003
  • In this work, we have conducted 3D-QSAR studies on a series of acanthonic acid derivatives that act as COX-2 inhibitors, using two different methods: comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA). CoMFA and CoMSIA analysis of twenty five pimarane analogues produced good models with high predictive abilities. (omitted)

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