• Construction Engineering and Management
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• v.25 no.3
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• pp.28-39
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• 2024

• Construction Engineering and Management
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• v.25 no.4
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• pp.32-34
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• 2024

• KOREAN JOURNAL OF CROP SCIENCE
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• v.15
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• pp.99-113
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• 1974

This experiment was carried out to find reasonable semi. hot seedbed system for early transplanting of "Tongil"rice cultivar. The quality of the young rice-plants, yield, and the occurrence of the reddish dry leaves were not significant differences between the seedbed with polyethylene tunnel and that of Rat covering. The per cent of healthy seedling of the soil preparation with the dry soil plowing was increased than that of the water soil plowing. The stability of the seedling cultivation of the thin layer straw mulching seedbed beneath the polyethylene film was higher than that of the common flat seedbed system.ed system.

• Korean Journal of Construction Engineering and Management
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• v.8 no.5
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• pp.161-172
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• 2007

By prosperous condition of construction economy in the early 90s in Korea, the government needed a lot of the qualified professional engineers (PE) to manage the construction site. In order to meet the high demand of P.E., Government has established the admitted engineer systems(AES) in 1995 that give the authority of principal engineers to the admitted engineers who do not take the written examination but have equivalent working experience. Since 2000, professional $engineer^{\circ}{\phi}s$ shortage has been resolved. however, the opposite situation, which is serious over-supply of construction engineers has occurred. Thus, Government announced that would abolish the admitted engineer systems as recognized the existent admitted engineers(about 1,000,000 persons) from 2007. However, Professional Engineers Institution has strongly insisted that Government should not recognize existent admitted engineers. From this point of view, it is critical to make the supply-demand forecast systems as a derivative approach of System Dynamics also, that is useful in comparing the argument between Government and Professional Engineers Institution. This paper describes about principal $engineer^{\circ}{\phi}s$ supply change by admitted engineer system abrogation and suggests the idea to regulate the supply and demand with the improvement of the regal system.

• Journal of Practical Engineering Education
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• v.9 no.1
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• pp.57-68
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• 2017

The purpose of this study is to analyze the actual preparation process and outcomes of applying RPL in University Dual System based on KOREATECH's case. A comprehensive literature review on prior research and cases was described in this study to assist Korean educational institutions who might be interested in adopting RPL into their organizations. Furthermore, three different levels of support were suggested based on the results of this study for successful adoption of RPL in Korea. Support from national system level, sociocultural level, and university level should be considered carefully for the success of RPL.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.33 no.2
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• pp.87-92
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• 2000

This study was designed to investigate the effects og $10{\%},\;20{\%}\;and\;40{\%}$-addition of functional brown algae (FBA)-noodles on oxygen radicals and their scavenger enzymes in liver of Sprague-Dawley(SD) male rats. Hydroxyl radicals$({\cdot}OH)$ formations were significantly inhibited$(20{\~}35{\%}\;and\;12{\~}20{\%})$ in liver mitochondria and microsomes of rats administered $0{\%},\;20{\%}\;and\;40{\%}$ FBA-noodles compared with that of control group. Significant differences in $H_2O_2$ formations of liver microsome in these FBA-noodles fed groups could not be obtained, but superoxide-radical $(O_2^({\cdot}-))$ formations of liver cytosol resulted in a significant decrease about $10{\%}\;in\;20{\%}\;and\;40{\%}$ FBA-noodles compared with control group. Mn-SOD activities in liver mitochondria were significanlty increased $(10{\~}15{\%})$ in the groups fed $10{\%},\;20{\%}\;and\;40{\%}$ FBA-noodles, while a group administered $40{\%}$ FBA-noodle only resulted In a significant increases $(about 12{\%})$ in Mn-SOD activity of liver microsomes compared with control group. Cu, Zn-SOD activities in liver cytosol were significantly increased $(10{\~}20{\%})\;in\;10{\%},\;20{\%}\;and\;40{\%}$ FEA-noodles compared with control group. Administration of $10{\%},\;20{\%}\;and\;40{\%}$ FBA-noodles resulted in a marked increases$(20{\~}40{\%})$ in liver cytosolic glutathione peroxidase (GSHPx) compared with control group. Significant differences in lipid peroxide (LPO) levels of mitochondria and microsomes in $10{\%}$ FBA-noodle could not be obtained, while LPO levels of $20{\%} and 40{\%}$ FBA-noodles were significantly inhibited about $10{\%}$ in mitochondria and microsomes compared with control group. These results suggest that these FBA-noodles may play a desirable role in attenuating an oxygen radical formations and increasing a scavenger enzymes activity by some brown algae (Undaria pinnatifida) components.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.32 no.6
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• pp.758-763
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• 1999

The protective effects of sea tangle (Laminaria japonica) extract and fucoidan components on the attack of oxygen radicals in kidney were studied, Sprague-Dawley (SD) male rats (210 $\pm$ 5 g) were with fed experimental diets of Dasi-Ex group (sea tangle extract powder of $4.0\%$ added to control diet), Euco-I, II and III groups (fucoidan powder of 1, 2 and $3\%$, respectively, added to Dasi-Ex group) for 45 days, Hydroxyl radical formations were significantly decreased ($10\~15\%$ and $15\~30\%$) in mitochondria and microsomes of Dasi-Ex and Fuco-I, II, III groups compared with control group. Hydrogen peroxide formations were also significantly decreased ($10\~15\%$) in microsomes of Dasi-Ex and Fuco-I, II, III groups compared with control group. Significant differences in mitochondrial basal oxygen radical (BOR) and microsomal induced oxygen radical (IOR) formations of Dasi-Ex and Fuco-I groups could not be obtained, but mitochondrial BOR and microsomal IOR formations were significantly decreased ($12\~15\%$ and $13\~14\%$) in Fuco-II and III groups compared with control group. BOR formations were significantly decreased ($12\~25\%$) in microsomes of Dasi-Ex and Fuco-I, II, III groups, and IOR formations were also significantly decreased ($10\~15\%$) in mitochondria of Fuco-I, II, III groups compared with control group, Significant differences in mitochondrial Mn-SOD activities of Dasi-Ex group could not be obtained, but mitochondrial Mn-SOD activities were dose-dependently increased by $8\%,\;16\%$ and $36\%$ in Fuco-I, II and III groups compared with control group, Mn-SOD activities an microsome were significantly increased about $20\%$ in Dasi-Ex group, while they were remarkably increased about $40\%$ in Fuco-I, II and III groups compared with control group. lipid peroxide contents were significantly decreased about $15\%$ and $15\~25\%$ in mitochondria and microsomes of Fuco-II and III groups. Membrane fluidities resulted in marked increases ($20\~35\%$ and $17\~24\%$) in mitochondria and microsomes of Dasi-Ex and Fuco-I, II and III groups. These results suggest that administrations of fucoidan added to sea tangle may play a pivotal role in attenuating attack of oxygen radicals in kidney.

• KIPE Magazine
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• v.4 no.3
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• pp.36-38
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• 1999

종전에는 전력회사가 전력수요에 따라 공급설비를 확충하는데 중점을 두어 왔으나, 최근에는 미국 등 선진국을 중심으로 공급력을 확보하는 것과 같은 효과를 거두면서, 국가의 총 비용을 줄이는 수요관리 위주로 경영방향이 변화하고 있다. 한국전력공사는 전기이용효율 향상을 통한 수요관리방안으로 고효율기기 보급지원제도를 검토하고, 조명기기를 대상으로 장려금 지급방안을 마련하여 시행하고 있으며, 지원기기에 대한 품질의 신뢰성 확보를 위하여 기술규격과 품질인정제도를 제정하고 인정표시로 "고 마크"를 운용하고 있다.

• Journal of Korea Fair Competition Federation
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• no.91
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• pp.15-19
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• 2003

경제력 집중에 따른 부작용을 원천적으로 치유하거나 시장규율을 통하여 치유하기에는 오랜 시간이 필요하고 그 효과가 매우 더디다는 점이 인정된다. 또한, 계열사간 출자, 지급보증, 그리고 상호주는 이론상 어느 정도 긍정적인 측면을 갖는 것도 인정되므로, 원천적 치유가 가능한 시기까지 존재하는 경제적 부작용을 필요악으로 인정하고 그대로 둘 것이 아니라 한시적이나마 정부가 일정한 역할을 할 필요가 있다고 할 때, 그리고 현 자본시장의 감시 및 견제기능이 제대로 작동하지 않는다고 파악할 때 경제력 집중을 억제하기 위한 정책수단인 출자총액제한, 지금보증, 그리고 상호주에 대한 규제는 어느 정도 설득력을 갖는다.

• 월간 기계설비
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• s.288
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• pp.83-85
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• 2014

건설기술진흥법령 시행령 및 시행규칙과 건설기술자 등급 및 경력인정 등에 관한 기준이 지난 5월 23일부터 본격 시행에 들어갔다. 국토교통부(장관 서승환)는 "건설기술관리법"이 "건설기술진흥법"으로 전부 개정된 이후 그동안 추진해왔던 하위법령(시행령 및 시행규칙)의 개정 작업을 마무리했으며, 건설기술자 역량지수(ICEC)의 구체적인 내용을 담고 있는 "건설기술자의 등급 및 경력인정 등에 관한 기준"도 함께 개정 공포했다.