• Title/Summary/Keyword: Ion component

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A Study on Individual Factors Affecting Knowledge Sharing Intention by Knowledge type

  • Li, Guo-Zheng;Cho, Nam-Jae
    • 한국디지털정책학회:학술대회논문집
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    • 2006.12a
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    • pp.355-366
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    • 2006
  • Knowledge sharing is an essential component of effective knowledge management, however, individuals' knowledge does nottransform easiIy into organizational knowledge even with the implementation of knowledge management program, rather , individuals tend to hoard knowledge for various reasons. this article is to explore what factors have influenced the knowledge sharing intent ion and knowledge sharing mechanism. Althoughseveral factors have been identified to help create a high performing knowledge organization, including leadershlp, organizational culture and so on, the major objective of the research. is to explore what kinds of individuals' factors have influence on knowledge sharing intent ion and knowledge sharing mechanism by knowledge types. This paper applied personality trait ability, extrinsic motivation, intrinsic motivation structure to explain knowledge sharing in organization.

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Analysis of the Contents in Stabilized Chlorine Dioxide (안정화 이산화염소의 성분분석)

  • Shin, Ho-Sang;Oh-Shin, Yun-Suk
    • Analytical Science and Technology
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    • v.12 no.5
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    • pp.403-407
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    • 1999
  • A method for detecting chlorine dioxide in drinking water was developed by the modified iodometric titration. This method requires prior removal of interfering chemicals such as chlorine and/or other oxidants: the interferents are removed by $N_2$ purging. Chlorite and chlorate were successfully quantified by the ion chromatography-conductivity detection. Stabilized chlorine dioxide that is commercially available contained only traces of chlorine dioxide (0.01-0.09%). In reality, its main component is chlorite.

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Analysis of Fatty Acyl Groups of Diacyl Galactolipid Molecular Species by HPLC/ESI-MS with In-source Fragmentation

  • Gil, Ji-Hye;Hong, Jong-Ki;Choe, Joong-Chul;Kim, Young-Hwan
    • Bulletin of the Korean Chemical Society
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    • v.24 no.8
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    • pp.1163-1168
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    • 2003
  • The structures of molecular species of galactolipids, such as monogalactosyl diacylglycerol (MGDG) and digalactosyl diacylglycerol (DGDG), isolated from wheat flour have been investigated using negative-ion electrospray ionization (ESI) mass spectrometry interfaced with high performance liquid chromatography (HPLC). According to the result of HPLC analysis, MGDG and DGDG were found to consist of mixtures of five and four molecular species, respectively. The galactolipids have been also analyzed to determine their fatty acid compositions, using HPLC/ESI-MS combined with in-source (or cone voltage) fragmentation. HPLC/ ESI-MS is very useful for one-step analysis of mixtures of galactolipids with a small sample quantity. Especially, the carboxylate anions produced in in-source fragmentations of the negative-ion of each component separated by HPLC provide valuable information on the composition of its fatty acyl chains.

The Study on Impurity Concentration Optimizing for the Refresh Time Improvement of DRAM (DRAM의 Refresh 시간 개선을 위한 불순물 농도 최적화에 관한 연구)

  • Lee Yong-Hui;Woo Kyong-Hwan;Yi Cheon Hee
    • Proceedings of the IEEK Conference
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    • 2000.11b
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    • pp.325-328
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    • 2000
  • The control of the data retention time is a main issue for realizing future high density dynamic random access memory. In this paper, we propose the new implantation scheme by gate-related ion beam shadowing effect and buffer-enhanced $\Delta$ Rp increase using buffered N- implantation with tilt and 4X-rotation that is designed on the basis of the local-field-enhancement model of the tail component. We report an excellent tail improvement of the retention time distribution attributed to the reduction of electric field across the cell junction due to the redistribution of N- concentration which is intentionally caused by Ion Beam Shadowing and Buffering Effect using tilt implantation with 4X-rotation.

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A Study on Low Temperature Phosphating for Cold Forming (냉간 가공용 인산염 피막처리의 저온화에 관한 연구)

  • 이만식;정충택;이광호;김준호;이근대;홍성수
    • Journal of the Korean institute of surface engineering
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    • v.35 no.5
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    • pp.279-288
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    • 2002
  • Zinc phosphating for cold forming of steel was studied with emphasis on decreasing phosphating temperature. To lower phosphating temperature, some techniques, such as adding Cu ion into bath, using activator in the form of pre-dip, and aeration in bath, instead of using conventional accelerator, namely oxidizing agent, have been tried. It was revealed that phosphating, leading to coatings of Improved uniformity and fine crystal size, can be carried out using above techniques at lower temperature ($55^{\circ}C$) compared to conventional phosphating temperature ($80 ~ 90^{\circ}C$ ). Under present condition, it was seen that optimum concentrations of Cu ion in phosphating bath and activator in pre-dip are 0.015% (w/w) and 2.0 g/1, respectively. The coating weight was within the range of 15 ~ 20 g/$\m^2$. When lubricant was applied into phosphating coatings, the amount of lubricating component (total soap) was found to be 6 ~ 10 g/$\m^2$ and the lubricated panel revealed excellent lubricating properties.

Effects of Chloride Ion on Accelerator and Inhibitor during the Electrolytic Cu Via-Filling Plating (전해 Cu Via-Filling 도금에서 염소이온이 가속제와 억제제에 미치는 영향)

  • Yu, Hyun-Chul;Cho, Jin-Ki
    • Journal of the Korean institute of surface engineering
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    • v.46 no.4
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    • pp.158-161
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    • 2013
  • Recently, the weight reduction and miniaturization of the electronics have placed great emphasis. The miniaturization of PCB (Printed Circuit Board) as main component among the electronic components has also become progressed. The use of acid copper plating process for Via-Filling effectively forms interlayer connection in build-up PCBs with high-density interconnections. However, in the case of copper-via filled in a bath, which is greatly dependent on the effects of additives. This paper discusses effects of Cl ion on the filling of PCB vias with electrodeposited copper based on both electrochemical experiment and practical observation of cross sections of vias.

A study on the dyed cotton fabrics with loess for bedspreds (침구류에 사용되는 황토염색 면직물에 관한 연구)

  • Kim, Seo-In;Jeong, Sung-Hoon
    • Proceedings of the Korean Fiber Society Conference
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    • 2003.10b
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    • pp.229-230
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    • 2003
  • In these days, it is actively investigated to use loess in textile industry. The loess have been reported for emissivity of far-infrared and negative ion, and antibacterial efficacy. The loess consist of quartz, feldspar, clay mineral, iron oxide mineral, gibbsite [Al(OH)$_3$], etc. The main component of loess is clay minerals which have great adsorption about ion exchange and far-infrared emission properties. Recently, various inner-wears, sheets, and interior goods are manufactured using the loess due to its improved blood circulation, metabolism, antibacterial and deodorizing properties. (omitted)

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A Study on Low Temperature Phosphating for Cold Forming (냉간 가공용 인산염 피막처리의 저온화에 관한 연구)

  • 이만식;정충택;이광호;김준호;이근대;홍성수
    • Journal of the Korean institute of surface engineering
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    • v.36 no.1
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    • pp.59-68
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    • 2003
  • Zinc phosphating for cold forming of steel was studied with emphasis on decreasing phosphating temperature. To lower phosphating temperature, some techniques, such as adding Cu ion into bath, using activator in the form of pre-dip, and aeration in bath, instead of using conventional accelerator, namely oxidizing agent, have been tried. It was revealed that phosphating, leading to coatings of improved uniformity and fine crystal size, can be carried out using above techniques at lower temperature (55$^{\circ}C$) compared to conventional phosphating temperature ($80∼90^{\circ}C$). Under present condition, it was seen that optimum concentrations of Cu ion in phosphating bath and activator in pre-dip are 0.015 % (w/w) and 2.0 g/1, respectively. The coating weight was within the range of $\15∼20 g/m^2$. When lubricant was applied into phosphating coatings, the amount of lubricating component (total soap) was found to be$ 6∼10 g/\m^2$ and the lubricated panel revealed excellent lubricating properties.

Research for Patent Application Tendency in the In-Line System Manufacturing for Component of Nano Scale (Nano 스케일 부품 제조용 In-Line 시스템의 특허동향 분석에 관한 연구)

  • Kim, Seung-Min;Ko, Jun-Bin;Park, Hee-Sang
    • Journal of the Korean Society for Precision Engineering
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    • v.25 no.6
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    • pp.150-158
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    • 2008
  • This research considered that the significance of the NT(Nano Technology) which gradually increased the importance of it and investigated the technology development current situation of the Korea, U.S.A, Japanese, Europe. Therefore, in domestic and foreign, this research was widely used. It includes the tendency of the technology about processing methods using the ion beam and electron beam among the In-line system related technique field for the high efficiency energy beam application nano scale manufacturing components. The technique level of Korea, the international trend of technology and cooperation research present condition are dealt in. The information about the checked out of business of research and development of the country consistency and policy establishment try to be provided.

Determination of Acetyl-L-carnitine in human plasma by LC-ESI/MS/MS

  • Jang, Moon-Sun;Park, Chang-Hun;Kim, Ho-Hyun;Chang, Kyu-Young;Lee, Ye-Rie;Lee, Hee-Joo
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.217.3-217.3
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    • 2003
  • Acetyl-L-carnitine, a physiological component of the L-carnitine family, has been proposed for treating Alzheimer's disease in pharmacological doses. Acetyl-L-carnitine and d3-acetylcarnitine (internal standard) were analyzed by electrospray ionization / tandem mass spectrometry (ESI/MS/MS) after derivatization to their butylesters through treatment with butanolic hydrogen chloride. Acetyl-L-carnitine produced a protonated precursor ion at m/z 260 and a corresponding product ion of m/z 85. Analytes were separated on a Capcell Pak C18 (2.0${\times}$150mm, 5 mm). (omitted)

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