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배용태 朝鮮大學校 社會科學硏究所 2001 社會科學硏究 Vol.22 No.1
As a gateway of trade between countries. It is very important that our ports be managed efficiently, so as to provide a high standard of service quality. If the ports are run inefficiently, the result will be an increase in the cost of importing and exporting goods, which will directly effect trade competitiveness to facilitate countries. In order to have the ports function smoothly and maintain a country's trade competitiveness. we need, both appropriate facilities and efficient management systems. Most nations traditionally have two types of unions which evolved over time. one is always open union which anyone can join, the other is closed union. The unions can't seem to accept the introduction of improved mechanization this seems to be due to the resulting loss of manpower. this difference of viewpoint leads to many obstacles in relation to the efficient running of the port facility and the resolution of conflict between management and workers. Due to this background, the port authorities of each country have been carrying out reconstruction efforts in relation to the change and demand of other industries this has been done our continuous basis for the reformation of Port Labor Unions. for instance, a full time working plan through education training. and common use of a closing labor union form. they are drawing up a plan to settle this matter all over the world. Now a days, a private management of Port Labor Unions has been instigated in most countries and we can see the latest examples in Taiwan and England. Though, the developing terminals in Korea. the trend of labor usage goes to regular users. because the right of labor supply in the main ports is under the control of the Labor Unions. As a result the Labor Service Companies experience difficulty in increasing their handling capacity. This in turn results in an increase of port expenditure, which hampers trade competiriveress in trade company. Accordingly a new way of the purpose of this study is to suggest of improving the port labor supply systems by analysing the available of found examples of Port Labor Reformation Systems and specifically looking at the problems in relation to the Korean Ports Labor supply systems.
동백나무(Camellia japonica) 잎 추출물의 비만세포에서의 탈과립 억제 및 염증성 사이토카인 억제효과
배용태(Yong-Tae Bae),송태임(Tae-Im Song),임채영(Chae-Young Lim),이기영(Ki-Young Lee),이숙영(Sook-Young Lee) 한국인체미용예술학회 2018 한국인체미용예술학회지 Vol.19 No.1
This study investigated the effects of leaf extract of Camellia japonica (LECJ) on antigen-stimulated degranulation in mast cells and its mechanism of action in cell lines. It was identified that the inhibitor activation in the examination of β-hexosaminidase, inflammatory cytokines and Syk kinase activation upon which LECJ were collected in the prime of antioxidant activity were 1/10 concentration lower than the patent published in 2007 and the paper published 2008. In the case of preparing LECJ, the inhibition of the concentration was 10 times greater than the start as reported in the existing paper published in 2007 and the patent published 2008. The effects of LECJ verified it as an effective material for cosmetic use. In the study, the antigen-stimulated activation of mast cells, the inhibition of degranulation on LECJ and its mechanism of action, LECJ exhibited an inhibitory effect on degranulation in mast cells. Also, the activation of signaling pathways in antigen-stimulated mast cells depends initially on the interaction of FceRI on the downstream activation of Syk and other tyrosine kinases. This study showed that degranulation in antigen-stimulated mast cells and the secretion of inflammatory cytokines decreased in a concentration dependent manner. These results showed that the LECJ in cell line is effective for its anti-allergic activity. In the case of LECJ, the study showed that the effects of degranulation, the effects of the expression and secretion of inflammatory cytokines, and the directly inhibiting activation of signaling molecules such as adaptors.
강용태 ( Yong Tae Kang ),송근관 ( Kune Kwan Song ),한상윤 ( Sang Yun Han ),손정호 ( Jeong Ho Son ),김연은 ( Yun Eun Kim ),배종환 ( Jong Hwan Bae ) 한국수처리학회 2010 한국수처리학회지 Vol.18 No.5
In this paper, Characteristics of Tunneling wastewater is high alkali about pH 11.25~11.85, Turbidity is experimented from 2590NTU to 413NTU. On the other hand COD(Mn). T-N, T-P is very lower than Permissible discharge standards due to make almost particle. the optimum dosage of flocculant for tunneling wastewater with pH and turbiditiy changes. The samples were mixed rapidly(200rpm-3min) and mixed slowly (30rpm-30min), then settled(10min). The optimum dosage of aluminum sulfate is 20ml/L and Polymer is 0.4m1/L even pH changes and turbidity changes. As a result, pH changes and turbidity changes have not decisive effect on treatment water quility. Also, 바이오큐브 media is the best removal efficiency on sample 1 than other medias, The removal efficiency of particle in 바이오큐브 media on sample2 is 88% for 30min. More filtration studies of tunneling wastewater must be done.
터널폐수 처리를 위한 섬유여과 공정의 응집 전처리에 따른 최적운전조건결정
강용태 ( Yong Tae Kang ),송근관 ( Kune Kwan Song ),송정호 ( Jeong Ho Sohn ),김연은 ( Yun Eun Kim ),배종환 ( Jong Hwan Bae ) 한국수처리학회 2012 한국수처리학회지 Vol.20 No.3
The purpose of this study is to investigate the optimal operating conditions of fiber filter process for effective tunnel wastewater treatment. Tunnel construction wastewater was discharged into the ocean, The sea water polluted by the tunnel wastewater, The average concentration of raw water in SS, Turbidity, COD, TN, TP, Salinity and pH were respectively 675mg/L, 747NTU, 0.76mgIL, 3.gmg/L, 0.32mg/L, 1 5o and 7.46. The sampling port of filter bed depth was 30-100cm. And Filtration velocity of fiber filter process was 100-1000m/day. Suitable pre-treatment is required because of high turbidity for Tunnel wastewater treatment. As a result, the optimal operating conditions of fiber filter process are 1 000m/day of filtration velocity, 80cm of bed depth without coagulation and 1 000m/day of filtration velocity, 30cm of bed depth with coagulation, In 400NTU, turbidity of raw water without coagulation showed 2,601, 783won, which is more cost-effective than fiber filter process with coagulation.
강용태 ( Yong Tae Kang ),김연은 ( Yun Eun Kim ),손정호 ( Jeong Ho Sohn ),배종환 ( Jong Hwan Bae ),김희영 ( Hee Young Kim ),김남경 ( Nam Kyoung Kim ),송근관 ( Kune Kwan Song ),한상윤 ( Sang Yun Han ),황순주 ( Sun Ju Hwang ) 한국수처리학회 2011 한국수처리학회지 Vol.19 No.4
The purpose of this study is to investigate the characteristics of undersea tunnel construction wastewater and treatment using Highrate Clarifier filtration (HCF). The raw water characteristics of pH, turbidity, salinity, T-N and COD(Mn) were 10.2, 597 NTU, 15 ‰, 13.03 mg/L and 16.25 mg/L, respectively. The linear velocity (LV) of HCF were 300 and 500 m/day. As a result, the efficiency of turbidity and heavy metals removal at linear velocity of 300 m/day were higher than that at LV 500 m/day. For Fe and Mn reduction, the efficiency of HCF were in the range of 14~25% more efficient than that of HF.
강용태 ( Yong Tae Kang ),송근관 ( Kune Kwan Song ),한상윤 ( Sang Yun Han ),손정호 ( Jeong Ho Sohn ),김연은 ( Yun Eun Kim ),배종환 ( Jong Hwan Bae ) 한국수처리학회 2011 한국수처리학회지 Vol.19 No.3
This experiment used to synthetic of tunneling wastewater with Biocube and fiber media. Filtration efficiency were operated at 0% of the compression rate. In addition, fiber media was changed to 0%, 15%, 30% of compression rate and 300m/day, 500m/day, 1000m/day of Lv in this period. Using of the filtration for treatment of the tunneling wastewater was compared filtration efficiency and backwash cycle of media. For characteristics of filter media, high quality treatment of media investigated compression and change of filtration efficiency. Also, high turbidity of tunneling wastewater examined spiked experiment. Fiber media backwash cycle was 4 times longer than Biocube, The smaller the compression ratio tended to be longer backwash cycle. Except for filtration rate of 1000m/day, removal of turbidity was exceeded 90%.
이승현,유우식,배혜림,김영호,박용태 한국경영과학회 2003 經營 科學 Vol.20 No.2
A workflow management system is a Software System to Support accurate execution, control and management of business processes. It has been known that the system automatically executes complex processes and effectively manages them to improve the productivities. However, though existing systems assure the automatic execution of an individual process, there is a room for enhancement from the view of efficient execution of all the processes. In this paper, we propose a method of executing business Processes efficiently by introducing the PERT/CPM techniques in the workflow management systems We first consider the differences between workflow process models and PERT/CPM models, and then develop a method of calculating the critical path and slack time in workflow processes. This leads us to develop a dispatching rule that can guide task performers to prioritize their tasks to increase the efficiency of all the processes. We have carried out a set of simulation experiments and analyzed the results to demonstrate the effectiveness of the proposed method.