• Title/Summary/Keyword: 유분도

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Condition of Facial Skin by Non-invasive Measurement and Lipid.Moisture Type of the Facial Ski by Subjective Self-consciousness in Some Middle-aged Women (중년여성의 자각하는 유.수분 유형과 비침습적 방법으로 측정한 안면피부상태)

  • Kang, Soo-Kyung;Ryu, So-Yeon;Park, Jong
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.31 no.3 s.52
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    • pp.279-283
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    • 2005

  • The content of lipid or moisture and index of erythema or melanin on each facial part of 170 urban middle-aged women without dermic disease was measured by non-invasive method. This measurement intended to understand the skin condition on each facial part of middle-aged women, and to determine the correlation between objective measured values and subjective symptom of lipid content/moisture content. The results was summarized as follows. At each facial Part, the order of moisture content was eye rims, forehead, and cheek and that of lipid content was forehead, eye rims, and cheek. The erythema index was in the order oi forehead, cheek and eye rims and melanin index, in the order of eye rims, forehead and cheek. It turned out that the middle-aged women generally lacked lipid content rather than moisture one. The objective measured values of lipid content coincided with subjective symptom of lipid type. The lipid content, erythema index and melanin index showed correlation significantly.

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Thermodynamic Correlations for Predicting the Properties of Coal-Tar Fractions and Process Analysys (석탄 유분에 대한 물성예측식 개발 및 공정에 대한 연구)

  • Oh, Jun Sung;Lee, Euy Soo;Park, Sang Jin
    • Korean Chemical Engineering Research
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    • v.43 no.4
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    • pp.458-466
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    • 2005

  • Full-scale utilizations of batch separation process often require knowledge about thermodynamics and correlation techniques of physical properties of complex mixture consisting of a great number of many unknown components. Various empirical correlations have been proposed to predict the physical properties mostly about the pseudocomponent of petroleum. In this study, one parameter correlations are developed for the calculations of the critical physical properties and ideal heat capacity of the pseudo-component of coal tar fractions. Developed model can provide a tool for the design and operations for the batch distillation of coal tar mixture.

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일본의 중질유대책

  • Korea Petroleum Association
    • Korea Petroleum Association Journal
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    • no.9 s.19
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    • pp.73-81
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    • 1982

  • 이 자료는 최근 일본의 중질유대책위원회가 앞으로의 중간유분대책에 관한 정부에 제출한 보고서내용을 옮긴 것이다. <편집자주>

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