49 research outputs found
A Study on export container preprocessing method to decrease the number of rehandling
The export of the containers consists of two steps, carrying them into the container yard and, then, out to the ship. For the safety of the ship, the heavier container should be loaded at the lower part of the ship. Because of this, the container rehandling happens during carrying out to the ship, and the number of the rehandling container is an important factor for the loading and unloading capability. There has been many studies for utilizing the idle times after loading the containers in the container yard. This study suggests the method of decreasing the number of container rehandling by preprocessing the container using the information about the weight of the container. This method is the preprocessing one which can decrease, during carrying into the container yard, the number of container rehandling which can happen during carrying out to the ship, and, according to the simulation test, it showed to be more effective than other method.μ 1μ₯ μ λ‘ 1
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λ³Έ μ°κ΅¬λ λμμ§κ° κΈ°μ‘΄μ κ°μ§κ³ μλ λΆμ μ μΈ μ΄λ―Έμ§λ₯Ό λ²μ΄λ λμλ―Όμκ² μ§μκ°λ₯ν νκ²½μ κ°μΉλ₯Ό μ 곡νλ κ²μ κ°λ₯νκ² νλ€. κ·Έλ¦¬κ³ μ§μμ μ€μ¬μ μμΉν μ°μ
μμ€μ λν μ‘°κ²½μ κ°λ₯μ±μ λͺ¨μνλ©°, μ§μμ κ±°μ μΌλ‘μ¨ λμμ§μ λν μ¬μΈμ κ°μΉλ₯Ό μ§μκ³Όμ 곡쑴 μμμ λ°κ²¬νλ κ²μ λͺ©μ μΌλ‘ νλ€.Jung-gu Incheon, the representative underdeveloped region in Incheon has strived in different aspects to put an effort transform to be the city of culture and tourism. Even so, the Sunchang Corporation area, a factory site located in the center of the region has been disregarded. Main spaces of the region has been recognized as the disparate things since the site is used as a industrial site. But, the development of the site provides the opportunity to see the region polysynthetically. Jung-gu, Incheon has made variety of the projects to strengthen the character and connect the main regions. And the site is involved in many major tasks that the region have pursued because of the geography. So, this design plan is to revive the space of the factory while concentrating on the regions capability.
For this, Main issues of the region will be made to three different basic direction.
First, The site will be made as a sea experiential space. Try to re-establish the boundary between land and water for a more active procurement of waterfront and enhancement of contact by the sea. Also try to use the change in sea level try to dynamically perceive the geography.
Second, Using the industrial heritage, try to remove the boundary between the old and new architectural structures. In the context of landscape level of contribution, physical value, historical and cultural value, decide on the criteria of tearing down or using it.
Third, There will be many open green spaces. Though the artificial environment on the reclaimed land lead the development of the region, it also be the mainly responsible for of living environment deteriorating. So, the development of the site should take more interest in the improvement of the living environment.Maste
Evaluation of caries prevention effect fiom pit and fissure sealant program added by community water fluoridation program in Habchon-Up, Habcheon-Gun, Korea
Objectives: The aim of this study was to evaluate caries preventive effects of oral health programs composed of pit and fissure sealant and community water fluoridation in Habchon-Up, Habcheon-Gun, Korea.
Methods: Dental surveys were conducted on 6 to 14 year old children at Habchon-Up, Habcheon-Gun in 2000 and 2006, respectively. The number of the subjects was 1,957 and 1,263 children in 2000 and 2006, respectively. The percentage of samples among total population aged 6 to 14 years in 2000 and 2006 was 90.6% and 69.2%, respectively. The obtained data from these surveys were analyzed with the SPSS statistical package version 12.0(SPSS Inc., Chicago, IL, USA). The 2006-year dental health data including the prevalence of dental caries and fissure sealants on children's permanent teeth was compared to the 2000-year dental health data and assessed using chi-square test and independent-sample t-test between 2000 year and 2006 year data.
Results: DMF rate of 12-year olds was 76.9% in 2000 and it significantly decreased to 44.5% in 2006. DMFT index of 12-year olds was 3.03 in 2000 and it significantly decreased to 1.31 in 2006. The prevalence rate of sealed permanent teeth among 12-year olds was 14.2% in 2000 and it significantly increased to 79.4% in 2006. The caries reduction rate from pit and fissure sealant added by community water fluoridation program was calculated as 56.8% at 12-year olds by the difference of DMFT indexes between 2000 and 2006 year.
Conclusions: These results suggests that oral health program composed of pit and fissure sealant and community water fluoridation in Habchon-Up, Habcheon-Gun was very effective in caries prevention and they should be expanded to other area to prevent dental caries among children.μ΄ λ
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