• Title/Summary/Keyword: DTI

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The Interaction between Bank Lending and Housing Prices in Korea (은행대출과 주택가격 간의 상호작용)

  • Jeong, Jun Ho
    • Journal of the Economic Geographical Society of Korea
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    • v.16 no.4
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    • pp.631-646
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    • 2013
  • This paper empirically explores the pattern of causality between bank lending and housing prices in Korea over a period of the early 1990s to the end of 2000s by employing a long term cointegration and short-term time series regression analysis. Although the contemporaneous correlation between bank lending and housing prices is large, the analysis shows that the intense interaction between credit growth and bank lending to household arises from a growth in banking lending responding to an increase in housing prices. In addition, the regulatory change such as the introduction of financial constraints on bank loans such as LTV and DTI in the early and mid-2000s has played a significant role in stabilizing financial and real estate markets.

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A multi-field CAE analysis for die turning injection application of reservoir fluid tank (리저버 탱크의 Die Turning Injection 적용을 위한 Multi-field CAE 해석)

  • Lee, Sung-Hee
    • Design & Manufacturing
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    • v.15 no.1
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    • pp.66-71
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    • 2021
  • In this study, die turning injection(DTI) mold design for manufacturing reservoir fluid tanks used for cooling in-vehicle batteries, inverters, and motors was conducted based on multi-field CAE. Part design, performance evaluation, and mold design of the reservoir fluid tank was performed. The frequency response characteristics through modal and harmonic response analysis to satisfy the automotive performance test items for the designed part were examined. Analysis of re-melting characteristics and structural analysis of the driving part for designing the rotating die of the DTI mold were performed. Part design was possible when the natural frequency performance value of 32Hz or higher was satisfied through finite element analysis, and the temperature distribution and deformation characteristics of the part after injection molding were found through the first injection molding analysis. In addition, it can be seen that the temperature change of the primary part greatly influences the re-melting characteristics during the secondary injection. The minimum force for driving the turning die of the designed mold was calculated through structural analysis. Hydraulic system design was possible. Finally, a precise and efficient DTI mold design for the reservoir fluid tank was possible through presented multi-field CAE process.

Localization of Bilateral Hemisphere Lesion Using Combined Transcranial Magnetic Stimulation and Diffusion Tensor Imaging: Report of Two Cases (경두개 자기자극과 확산텐서 신경섬유로 검사를 통한 대뇌 병변의 국소화: 증례보고)

  • Lee, Hyung Nam;Oh, Young-Bin;Kim, Gi-Wook;Won, Yu Hui;Ko, Myoung-Hwan;Seo, Jeong-Hwan;Park, Sung-Hee
    • Journal of Electrodiagnosis and Neuromuscular Diseases
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    • v.20 no.2
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    • pp.106-111
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    • 2018
  • Transcranial magnetic stimulation (TMS) has been a gold standard for investigating central motor pathways in humans. Diffusion tensor imaging with fiber tractography (DTI FT) is known for its usefulness in detecting white matter lesion in vivo. We investigated the clinical usefulness of elucidating the integrity and continuity of corticospinal tract (CST) by combined use of TMS and DTI FT in this study. We report two cases who have presented with left hemiparesis and evaluated by both TMS and DTI FT; 10-year-old boy with Mitochondrial Encephalomyopathy with Lactic Acidosis and Stroke-like episode syndrome and 20-year-old woman with traumatic brain injury. Combined use of TMS and DTI FT successfully led to localize the brain lesion that might cause motor impairment in patients with abnormal signal intensities in MRI. The results of this study suggest that TMS and DTI FT might provide the detailed information between function and anatomy of the CST, complementarily.

Delayed Anoxic Encephalopathy after Carbon Monoxide Poisoning: Evaluation of Therapeutic Effect by Serial Diffusion-Tensor Magnetic Resonance Imaging and Neurocognitive Test (일산화탄소중독 이후 발생한 지연무산소뇌병증: 확산텐서영상 및 신경인지기능검사를 이용한 치료 효과의 평가)

  • Ryu, Ho-Sung;Kim, Youngwook;Jung, Boo-Kyoung;Kim, Yong-Won
    • Journal of the Korean neurological association
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    • v.36 no.4
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    • pp.358-362
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    • 2018
  • Delayed anoxic encephalopathy after carbon monoxide (CO) poisoning is characterized by neurological deterioration that occurs after recovery from acute CO intoxication. There has been no established therapy. We report a patient recovered from acute CO intoxication developed various neurological symptoms. After the administration of high dose prednisolone and anticholinesterase inhibitor, the therapeutic effect was remarkable and confirmed by quantitative analysis of diffusion-tensor imaging (DTI). DTI could be used to evaluate the therapeutic effect for delayed anoxic encephalopathy after CO poisoning.