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임플란트 지지 서베이드 금관을 이용한 하악의 가철성 국소의치 수복 증례
박재호,민병귀,양홍서,박찬,박상원,Park, Jae-Ho,Min, Byung-Kwee,Yang, Hong-So,Park, Chan,Park, Sang-Won 대한치과보철학회 2018 대한치과보철학회지 Vol.56 No.2
소수의 잔존치가 편측으로 남아 있을 때 전통적인 가철성 국소의치를 제작하는 경우, 기능시 잔존 치아를 연결한 축을 중심으로 의치의 회전이 발생하며 부분 무치악 부분이 긴 경우 점막 지지 비중이 증가되어 지대치에 대한 유지와 안정을 얻기 어렵다. 이런 의치의 움직임은 의치의 유지와 안정을 감소시키며 지대치에 과도한 힘을 가하게 되고 치주 건강에 좋지 않은 영향을 미치게 된다. 따라서 추가적인 임플란트를 식립하여 부가적인 유지와 안정을 얻는 국소의치의 치료가 좋은 선택이 될 수 있다. 잔존치와 대칭적인 위치에 임플란트를 식립 후 임플란트 지지 서베이드 금관을 제작하여 국소의치 삽입로와 각종 구성 요소를 받아들일 수 있는 설계로 제작하여 좋은 임상 결과를 얻었기에 보고하는 바이다. When making conventional removable partial denture for the remaining teeth where the remaining teeth are only on one side, rotation of the denture occurs -in function- on the axis of the connected remaining teeth. If the edentulous portion is long, it becomes harder to obtain retention and stability for the abutment as the importance of the mucous membrane support is elevated. Such movements of denture decrease denture retention and stability, put excessive stress on the abutment, and give bad influence on periodontal health. Therefore, additional implant placement can be of a good choice in gaining additional retention and stability for partial denture. Thus hereby we report this clinical case as successful results were obtained by placing implants symmetrical to the remaining teeth and putting implant-supported surveyed crowns on the implants, allowing the partial denture to be designed to accept varying components and to have suitable path of insertion.
박재호 ( Jae-ho Park ),이병준 ( Byung-joon Lee ),최윤영 ( Yun-young Choi ),이병철 ( Byung-chul Lee ) 한국환경기술학회 2016 한국환경기술학회지 Vol.17 No.2
본 연구에서는 MODFLOW모형과 MODPATH모형을 이용하여 수문해석이 난해한 도서지역에 대해 지하수 유동과 포획구간산정을 동시에 모의함으로써 대상지역의 적정양수량에 관하여 분석하였다. 본 분석지역의 지하수 함양량 산정 결과에서 수문총량은 219백만 ㎥, 지하수함양량은 연간 950만 ㎥이며, 1일 평균 함양량은 약 258천 ㎥이고, 한림유역의 지하수 함양률(42.9%)은 제주도 전체 함양률(44.5%)과 비슷한 값을 보이고 있는 것으로 분석되었다. 대상지역의 관측정 실측지하수위를 이용하여 시행착오법으로 수리인자에 대한 보정과정을 통해 MODFLOW모형의 최적매개변수를 산정하고 이를 적용하여 지하수유동을 분석한 결과, 관측공의 지하수두와 평균 5% 내외의 오차로 모형의 적합성을 잘 반영하는 것으로 나타났다. 분석지역의 지하수 관정에 대해 양수량을 130 ㎥/일로 1년, 2년 및 3년간 지속적으로 양수하였을 경우, 이에 대한 포획구간은 1년 동안 양수할 경우 예상되는 포획범위는 약 146.3∼211.1 m, 2년 양수시에는 324.7∼387.4 m 및 3년 양수시에는 495.8∼567.9 m로 분석되어, 양수기간이 길어질수록 포획범위도 비례하여 증가하는 것으로 나타났다 This study analyzed the safe pumping rate in islands by simultaneously simulating the estimation of capture zone and groundwater flow in the islands, which it was difficult to make a hydrologic analysis of, using MODFLOW model and MODPATH model. According to the results of estimating the groundwater recharge quantity in this analyzed area, the analysis showed that total precipitation amount was 2.19 million ㎥, and groundwater recharge quantity was 9.5 million ㎥/year, and average daily recharge quantity was approximately 258,000 ㎥, and groundwater recharge rate of Hanlim basin (42.95%) was similar to that of entire Jeju Island. According to the results of analyzing groundwater flow by applying optimum parameter of MODFLOW model, which was estimated through compensation process for hydraulic parameter by trial and error method, using the actually measured groundwater level in the observation well of analyzed area, it was shown that there was an average of approximately 5% error between the groundwater head of observation well and analysis result, and appropriateness of model was successfully reflected. In case of continuous pumping for 1 year, 2 years, and 3 years at 130 ㎥/day of pumping rate from groundwater well in the analyzed area, the analysis showed that the expected capture zone was approximately 146.3∼211.1 m in case of pumping for 1 year, 324.7∼387.4 m in case of pumping for 2 years, and 495.8∼567.9m in case of pumping for 3 years. And it was shown that capture zone proportionally increased as pumping duration increased.
구리-L-리신 킬레이트의 Bacillus megaterium 내 축적
박재호(Jae Ho Park),박혜민(Hye Min Park),윤현식(Hyun Shik Yun) 한국생물공학회 2018 KSBB Journal Vol.33 No.3
Copper is a bivalent mineral and nutritionally necessary for mammals. It has been used as an animal feed additive or growth factor for animals. However, large amount of copper contained in animal manure by oversupplying of copper have a negative impact on the soil environment. Chelates of copper and amino acids have the advantages of being better absorbed into the intestines than copper ions and less sensitive to photodegradation than amino acids. Bacillus spp., a sporeforming probiotic, have stability against heat and low pH and are used as animal growth factor or feed additives. In this study, copper-L-lysine chelate was accumulated in Bacillus megaterium ATCC 10778 to use as mineral-containing probiotics or feed additives. The highest chelation rate of copper sulfate and L-lysine was 62.53% after 1:1 reaction of copper sulfate to Llysine for 25 minutes at 70℃. FB media was selected for bioaccumulation of copper-L-lysine chelate in flask culture. In the fermentor culture, 38,043 ppm of copper ion was accumulated in 6.50×108 CFU/mL of B. megaterium.