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한성길,박종관 서울産業大學校 2005 논문집 Vol.54 No.2
In this study, a large pile load test was performed in the deep sand gravel deposit of Nakdong river basin so that the characteristics of the load transfer was identified. The fully instrumented circular bored pile of the diameter 1.5m was placed into the ground below 50m. Under the applied load of 2,400 tonf, the test results of the load transfer showed that 93% of the applied load on the bored pile was supported by the skin friction along the pile shaft. Also, it was revealed that the most of this skin friction mobilized in sand layer underlying clay layer having N-value more than 30. However, if embedded in the stiff sand graval layer, the pile was proven to be sufficient for using as the friction pile.
한성길(Sung Gil Han),신유인(Yoo-In Shin),윤찬헌(Chan Heon Yoon),송철기(Chul Ki Song) 한국기계가공학회 2014 한국기계가공학회지 Vol.13 No.5
A planetary gear train is more compact and endures greater amounts of transmission power compared to other gear systems. Although planetary gear systems operate in small volumes, they are capable of very high efficiency due to the compact combination of their gears in the planetary gear system. They also have outstanding efficiency of only 3% for power transmission, tantamount to the power loss that occurs in each of the shift stages. Given these advantages, planetary gear systems are used in the driving systems of, which are widely used in automobile transmissions, machine tools, semiconductor equipment, and in other areas in industrial fields. Current structural equipment requires higher efficiency and greater torque levels. According to these needs, we have designed a complex planetary gear system which creates higher levels of torque. In this paper, an evaluation of strength designs for the proposed planetary gear system was conducted to ensure the stability of the gear. In addition, a durability analysis based on Miner"s rule was performed using RS B 0095 device.
주상시험장치를 이용한 해안 폐기물 매립장 지반토지 오염물 흡착능에 관한 연구
장연수,한성길,김수삼,Jang, Yeon-Su,Han, Seong-Gil,Kim, Su-Sam 한국지반공학회 1997 지반 : 한국지반공학회지 Vol.13 No.4
본 논문은 해안 매립장의 해성점토와 그 기반 풍화토가 갖는 침출수 중의 무기물, 중금속 및 유기물에 대한 오염물 이동성 저감능력을 실내 주상실험에 의하여 조사하였다. 그 결과 무기물 인 칼릅의 경우 해성점토층의 흡착능이 하부 풍화토에 비하여 큰 것으로 나타났으며 중금속인 납과 카드윰의 경우는 매립장 실제 배출 농도보다 큰 농도에서도 완전 흡착되는 것으로 나타났다. 유기성 폐기물에 대한 실험결과 그 흡착능이 무기물이나 중금속에 비하여는 떨어지나 침출수내의 난분해성 유기물질을 기반 점토 및 풍화토가 저감시킬 수 있는 것으로 나타났다. In this paper, the retardation capacity of marine clay and weathered soil of seashore waste landfill is analyzed by using a laboratory column apparatus for organic and inorganic components which can represent the components of the leachate of municipal waste landfill. The results show that sorption capacity marine clay for potassium is larger than that of weathered soil. Lead and cadmium are adsorbed completely at concentrations higher than the real concentrations developed in the landfill. The bottom soils of seashore landfill can also retard some nondegradable components of organics although their sorption capacities for organics were less than those for inorganics.