http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오현철,박희완,한대용,양규현,양익환 대한골절학회 1995 대한골절학회지 Vol.8 No.3
Nawadays, tibial fractures are not uncommon and those treatment methods are varied also. Recently interlocking nailing for tibial fracture is widely used, Between March 1992 and February 1994, 20 tibial fractures were treated with interlocking nail in 18 patients over 12 months follow up. The results were as follows: 1. Seventeen cases(85.0%) were able to perform active ROM exercise of knee and ankle within 1 week, Partial weight bearing for dynamic interlocking nailing, was allowed in 2.6 weeks(mean). For static interlocking nailing, weight bearing was allowed in 6.7 weeks. 2. The average operation time was 42 minutes, blood loss within 100ml. The fracture sites were not exposed. 3. Union without complications was achieved in 19 cases(95.0%) in average 12.8 weeks. One case needed a secondary operation later with Ilizarov external fixator due to reduction failure. 4. There was no nonunion or reduction loss after weitht bearing. 5. Complications were reduction failure, superficial infections, and screw breakages. In conclusion, interlocking nailing for tibial fractures was gained good results with low compiications and early weight bearing, leads to excellent results.
Oh, Hyeon Ji,Kim, Jung-Hyun,Mun, Seong Hee,Kim, Jin Hui,Kim, Dae-Jung,Kwon, Joon Yeong The Korean Society of Developmental Biology 2018 발생과 생식 Vol.22 No.3
Large quantity of eggs fail to be fertilized and many of fertilized eggs are unable to hatch in the eel, Anguilla japonica. Larvae of eel absorb egg yolk up to 8 days after hatching but the majority of hatched larvae die before they reach the stage of first feeding in this species. Genes of key enzymes for yolk processing (cathepsin B, D, L and lipoprotein lipase - abbreviated as ctsb, ctsd, ctsl and lpl, respectively) could be associated with egg quality. In this study, we investigated differences in the expression of these genes between floating eggs and sinking eggs, and also the relationship between the gene expressions of the enzymes and fertilization rates in the fertilized eggs obtained from artificially matured female eels. Expressions of yolk processing enzyme genes did not show significant difference between floating and sinking egg groups. Expression of ctsb decreased when fertilization rate was high. Expression of ctsd, ctsl and lpl, however, did not show any significant differences. These results suggest that ctsb expression could be an indicator of egg quality, and that some proteins prone to be digested by ctsb could be very important in the process of fertilization and normal cleavage in this species. Further study should identify these critical proteins to improve our understanding on the quality of fish eggs.
Oh, Jae-Won,Lee, Chang-Ho,Hong, Sup,Bae, Dae-Sung,Cho, Hui-Je,Kim, Hyung-Woo The Society of Naval Architects of Korea 2014 International Journal of Naval Architecture and Oc Vol.6 No.3
This paper concerns the kinematic characteristics of a coupling device in a deep-seabed mining system. This coupling device connects the buffer system and the flexible pipe. The motion of the buffer system, flexible pipe and mining robot are affected by the coupling device. So the coupling device should be considered as a major factor when this device is designed. Therefore, we find a stable kinematic device, and apply it to the design coupling device through this study. The kinematic characteristics of the coupling device are analyzed by multi-body dynamics simulation method, and finite element method. The dynamic analysis model was built in the commercial software DAFUL. The Fluid Structure Interaction (FSI) method is applied to build the deep-seabed environment. Hydrodynamic force and moment are applied in the dynamic model for the FSI method. The loads and deformation of flexible pipe are estimated for analysis results of the kinematic characteristics.
Oh, Hoo-Kyu,Son, Chang-Hyo,Yu, Tae-Geun,Kim, Dae-Hui The Korean Society of Marine Engineering 2007 한국마린엔지니어링학회지 Vol.31 No.3
The heat transfer coefficient and pressure drop during 9as cooling process of $CO_2$ (R744) in a helically coiled copper tube with the inner diameter of 4.55 mm and outer diameter of 6.35 mm were investigated experimentally. The main components of the refrigerant loop are a receiver, a variable-speed pump. a mass flow meter a pre-heater and a helically coiled type gas cooler (test section). The refrigerant mass fluxes are varied from 200 to $800kg/m^2s$ and the inlet pressures of gas cooler are 7.5 to 10.0 MPa. The heat transfer coefficients of $CO_2$ in a helically coiled tube are higher than those in a horizontal tube. The Pressure drop of $CO_2$ in the gas cooler shows a relatively good agreement with those predicted by Ito's correlation developed for single-phase in a helically coiled tube. The local heat transfer coefficient of $CO_2$ agrees well with the correlation by Pitla et al. However. at the region near pseudo-critical temperature. the experiments indicate higher values than the Pitla et al correlation. Therefore, various experiments in helically coiled tubes have to be conducted and it is necessary to develop the reliable and accurate prediction determining the heat transfer and pressure drop of $CO_2$ in a helically coiled tube.