• Title/Summary/Keyword: Degree of nonhomogeneity

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Mechanical Properties of GMT-Sheet on Press joined Molding (프레스 접합성형 GMT-Sheet의 기계적 성질)

  • Kim, Hyuk;Choi, Yu-Sung;Lee, Dong-Ki;Han, Gil-Young;Kim, Yi-Gon
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.553-553
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    • 2000
  • The application as the parts of an automobile, using the property of GMT-Sheet, is increasing. In order to exchange the parts of an automobile for GMT-Sheet, at first, the establishment and joining problem of exact joining strength must be determined. We have studied it using composites which is not same each other fiber oriented condition so as to determine joining strength and joining condition of GMT-Sheet. h this study, the result of experiment of forming condition concerned joining problem of GMT-Sheet is this ; joining efficiency of of GMT-Sheet, increases as lap joint length L increases. Increase of compression ratio causes decrease of joining efficiency after of GMT-Sheet joining. In the viewpoint of recycling, randomly oriented composite of GMT-Sheet is desirable more than unidirectional oriented composite. We has better design the structure so as not to occur to stress centralizatien on the joining part.

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Significance of Diffuse Lung Uptake of $^{99m}Tc-Tin$ Colloid in Liver Scanning (간스캔상 $^{99m}Tc-Tin$ Colloid의 미만성 폐섭취의 의의)

  • Sohn, In;Kwon, In-Soon;Park, Jung-Sik;Lee, Myung-Chul;Cho, Bo-Yeon;Koh, Chang-Soon;Lee, Mun-Ho
    • The Korean Journal of Nuclear Medicine
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    • v.17 no.1
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    • pp.33-39
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    • 1983
  • Sixty-nine patients with diffuse lung uptake of $^{99m}Tc-tin$ colloid were evaluated to determine the kinds of associated diseases, the incidence of associated liver scan abnormalities, and prognosis. The results were as follows: 1) Diseases associated with diffuse lung uptake included malignancies in 31 patients, infectious diseases in 19, chronic liver diseases in 14, and others in 5. It appeared that the marked degree of lung uptake was associated with severe diseases. 2) Thirty-one of the 69 patients(45%) had abnormal liver size, 43(62%) had space occupying lesions or nonhomogeneity in liver image, 37(54%) had splenomegaly and 45(65%) had increased splenic uptake. Increased bone marrow uptake was found in 48(70%) and renal uptake in 15(22%). As the degree of lung uptake increased, there was a statistically significant (p<0.05) tendency for the incidences of the abnormal liver image and renal uptake to increase. 3) Sixty-two of the 69 patients were followed up for one to 439 days(mean 44 days) after liver scanning. Eleven(18%) were dead, 10(16%) were aggravated, and 13(21%) were improved. Most of improved patients had infectious diseases. It appeared that diffuse lung uptake of $^{99m}Tc-Tn$ colloid was found in the various diseases including malignancies, infections, and chronic liver diseases, and that it was strongly associated with other liver scan abnormalities, but was not necessarily associated with a poor prognosis, particularly when underlying diseases were infections.

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