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김홍수,인수일 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-
Invasive bioelectrode, as called acupuncture needle, originated within the auspices of Oriental medicine, and today is used as an alternative method for treating various diseases and symptoms. The physiological mechanisms of invasive bioelectrode appear to involve the release of endogenous opiates and neurotransmitters, with the signals mediating through electrical stimulation of the central nervous system. Earlier we reported a invasive porous bioelectrode with enhanced therapeutic properties, evaluated by electrophysiological and behavioral responses in Sprague-Dawley rats. Herein, we investigate molecular changes in colorectal cancer rats by acupuncture treatment using the invasive bioelectrodes. Treatment at acupoint HT7 is found most effective at reducing average tumor size, β-catenin expression levels, and the number of aberrant crypt foci in the colon endothelium. Invasive porous bioelectrode further enhances the therapeutic effects of acupuncture treatment in CRC rats.
Some Consideration on Structure of Carbon fibers during Hot Stretching
김홍수,Kim, Hong-Su Materials Research Society of Korea 1999 한국재료학회지 Vol.9 No.1
A polyacrylonitrile(PAN)-based carbon fiber tow was heat-treated by directly passing electric current through the tow. The effects of the stretching stress applied during high temperature heat-treatment of PAN-based carbon fibers were investigated by measuring the electric resistance changes taking place during the internal resistance heating. The structure parameters characterizing the stacks of carbon layer, such as interlayer spacing, sizes and orientation of the carbon fibers heat-treated with hot-stretching were evaluated as a function of surface temperature of tow during heat treatment in the range of $1000~2400^{\circ}C$. Though the layer extent in the fiber axis direction depends strongly on the electric resistance, the changes in a crystallite parameter is independent of the longitudinal strain.
Electroluminescent Properties of Anthracene Chromophore with Naphthylethenyl Substituents
김홍수,정노희 한국응용과학기술학회 2004 한국응용과학기술학회지 Vol.21 No.1
New electroluminescent materials based on anthracene chromophore with naphthylethenyl substituent, 9,10-bis(α-naphthylethenyl)anthracene (a-BNA), as well as four kinds of its derivatives were synthesized, and luminescent properties of these materials were investigated. Electroluminescent(EL) emission band was discussed based on their substituent structure differences. It was found that the emission band strongly depends on the molecular structure of introduced substituent. It can be tuned from 557 nm to 591 nm by changing the substituent structures. On the other hand, the anthracene chromophore with bulky substituent possessed high melting point and they gave stable films through vacuum-sublimation. The double layer EL device of ITO/TPD/emission layer/Mg:Ag was employed, and exhibited efficient orange light originating from emitting materials. EL emission with a maximum luminance was observed in the b-BNA emitting material, : maximum luminance was about 8,060 cd m-2 at an applied voltage of 10 V and current density of 680 mA/cm2. In conclusion, the electroluminescent properties also showed good difference with their substituent structure.
金烘受 東亞大學校 1966 東亞論叢 Vol.3 No.-
微粉炭灰(發電所 無煙炭灰) 施用에 依한 作物 生育試驗에 있어서 1) Pot 試驗 結果 供試作物인 大豆의 子實重에 대하여는 10a當 施用量 5t, 10t의 경우 無施用區보다 各 13%, 23%의 增收를 나타내었으나 分散分析의 結果 有意性이 있는 것은 아니었다. 2) 圃場試驗에 있어서 供試作物인 甘藷 生産物量을 보면, 10a當 施用量이 많을수록 增收效果를 나타내었는데 根量은 10a當 5t, 10t, 20t의 施用에 따라 各各 7,13, 14%의 增收實績을 보았다. 그러나 分散分析의 結果 P=0.05에 대한 F n₁=3 n₂=6 値 4.76에 대하여 ??=4.18로서 若干의 有意性이 考慮되며, 微粉炭灰의 施用效果가 甘藷 增收에 대하여 若干은 있다고 結論지어진다. On the growing of crops by supplying powder coal ash (smokeless coal ash discharged from the electric powerhouse), the result of experiments are summarized as follows: (1) The result of pot experiments, on the seed weight of soy beans, showed that the 5 and 10 tons block (per 10 ares) yielded more than non-treatment (check control) block by 13 and 23 percentage each, but the result of the variance analysis showed indifference. (2) For the result of the field experiment on sweet potatoes, the effect of the ash showed that the more supplied the more yielded them. Percentage of the root weight for each treatment block (0.5, 1 and 2 tons block) were 7, 13 and 14 percentage higher than check block. But compared with the result of the variance analysis for them they showed some difference as ??=4.18<4.76=?? ?? n₁=3 n₂=6. Consequently, it was pointed out that the supplying effect of powder coal ash to the sweet potato may be effective for root yield.
金又俊,安明浩,金洪秀 麗水大學校 産業基術硏究所 1999 産業基術硏究所 論文集 Vol.8 No.-
This study was carried out to investigated the contents of heavy metal of mercury and lead with the purpose of preserving the health and sanitation of the public in imported marine product. The samples used this study were live fish of 6 species. The ranges of mercury content in imported fish were 0.009∼0.060ppm in 1995, and 0.007∼0.032ppm in 1996. The ranges of lead content of live fish in 1995 and 1996 were 0.29∼0.40ppm and 0.25∼0.44ppm, respectively. The seasonal variation of mercury and lead in red sea bream from 1995 to 1996 was the range of 0.008∼0.094ppm and 0.02∼0.40ppm and sea bass was 0.007∼0.051ppm and 0.23∼0.41ppm, respectively. From the result of this study, mercury and lead contents of imported live fish in all used samples were natural content.