http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
크롬(Cr6+)을 이용한 만성독성이 물벼룩에 미치는 영향; Daphnia magna, Daphnia sp. Moina macrocopa
강한솔 ( Han Sol Kang ),김규리 ( Kyu Ri Kim ),박형순 ( Hyung Soon Park ),강민구 ( Min Koo Kang ),신관우 ( Gwan Woo Shin ),이상일 ( Sang Ill Lee ) 한국수처리학회 2013 한국수처리학회지 Vol.21 No.5
This study was evaluated in order to look into the influence factor reached to these water fleas when the international kind and domestic species was aimed at and the long time was exposed to the chromium, the effect that it reaches to the water flea rates of growth, reproduction and transformation was examined and the comparison about each water flea. Experiments were carried out for over 21days for Daphnia magna and Daphnia sp. and over 10days for Moina macrocopa with concentration of chromium of 0, 1, 3, 5, 10 ug/L in culture media. In the experimental result all concentrations, the water flea survived. Therefore, the that the chromium reaches to the alive of the water flea effect determined to write the effect. The time required for first birth of water fleas was longer periods were required with increase of chromium in every species. For testing period, the number of transformation of every species was decreased with the increase of chromium. The size of neonates, born from the survived adult water flea was significantly smaller with increase of toxic concentration. Also, the number of water flea produced per day was decreased in the order of Daphnia magna, Daphnia sp. and Moina macrocopa.
강한솔 ( Han Sol Kang ),강정규 ( Jung Kyu Kang ),강민구 ( Min Koo Kang ),류홍덕 ( Hoo Duck Ryu ),이상일 ( Sang Ill Lee ) 한국수처리학회 2012 한국수처리학회지 Vol.20 No.5
This study was aimed to evaluate magnetite`s ability in treating silicate of back grinding wastewater which is generally produced from semiconductor industry, The back grinding wastewater is the super pure water as the water come out of the semiconductor process and includes the partial silicon powder, By using the magnetite, that is the nano particle implying the magnetism in this wastewater, the silicon grain was absorbed and it removed. The optimum dosage of magnetite, pH, mixing intensity and duration time were investigated and the best silicate removal was 97 % at the magnetite dosage of 0.0 16mg/mL the pH range of 2 to 8 respectively. The magnetic force was also important parameter on the silicate removal. The silicate removal was not affected with magnetic force in the sedimentation time of over 10 mm, whereas, the silicate removal increased as magnetic force increased when the sedimentation time was below 10 mm.
강한솔(Han-Sol Kang),고윤호(Yun-Ho Ko) 대한전자공학회 2017 대한전자공학회 학술대회 Vol.2017 No.6
We proposed a novel stereo matching method using white auxiliary stripe. Conventional active stereo matching has a difficulty of pattern acquisition under the environment with irregular lighting. In order to solve this problem, we proposed a novel pattern called a white auxiliary stripe. The white auxiliary stripe helps color-based pattern acquisition. The proposed method is compared with conventional method by measuring a stepped sample.
CT 유도하 폐의 경피적 세침 조직 검사의 효과적인 시술 과정에 따른 선량 감소 및 환자 안정성에 대한 연구
강한솔(Han Sol Kang),김민정(Min Jung Kim),이기백(Ki Baek Lee),김선기(Sun Ki Kim),하동윤(Dong Yoon Ha) 대한전산화단층기술학회 2014 대한CT영상기술학회지 Vol.16 No.2
목적 : CT 유도 폐 조직검사의 효율성을 평가하고 본원에서 시행하는 CT 유도하 폐 조직검사 시술 과정을 소개하고 시술 준비 시 유의사항과 그 중요성에 대해 알고자 하였다. 대상 및 방법 : 모든 시술은 MDCT scanner (Somatom Definition AS, Siemens Healthcare, Germany)에 3 mm slice thickness, 3 mm increment, 100 kV, 25 ref.mAs, B30f kernel, spiral mode의 scan ptotocol로 시행하였다. PACS 프로그램을 통해 기록된 정보를 확인하여 1회 시술 시 평균 scan 횟수와 OCS 프로그램을 통한 1회 평균 시술 시간을 구하였다. 또한 Lung/Chest phantom (Model RS-330, Fluke Biomedical, Everett, USA)을 이용하여 본원에서 설정한 프로토콜과 장비 내에 기본 설정된 프로토콜로 각각 5회 scan하여 총 선량을 비교하였다. 결과 : 본원에서 설정한 프로토콜로 scan한 경우의 선량이 기본 설정된 프로토콜로 scan한 경우의 선량보다 크게 감소 하였고 환자 자세 교정 시 고려해야 하는 인자로는 fissure, breast, scapula 등이 있었다. 적합한 자세교정 등의 시술 준비로 인한 평균 시술 횟수는 5.1회 이었고, 평균 시술 소요 시간은 30분 이내였다. 결론 : 크기가 작고 조직 주변에 혈관이 위치해 있어 fluoroscopy 유도하 시술이 어려운 경우에는 CT 유도하 시술을 통해 보다 정확하게 조직검사를 할 수 있다. 또한 본원에서 설정한 조직검사 시 필요한 최저 선량을 사용하면서 시술 전 자세교정과 안정된 호흡연습 등을 통하여 시술 계획과 실제 시술의 오차를 줄인다면 시술 횟수와 시간을 단축시켜 환자 피폭 경감효과를 얻을 수 있으며, 합병증 발생과 단시간 시술로 환자의 부담을 줄여 환자 안정성을 높일 수 있다. Purpose : To evaluate the efficiency of CT-guided lung percutaneous needle biopsy (PCNB) and to introduce overall biopsy procedures in Asan Medical Center. Materials and Methods : All examinations were performed using MDCT scanner (Somatom Definition AS, Siemens Healthcare, Germany) with 3mm-slice thickness/increment, 100kV, 25 ref.mAs, B30f kernel and spiral mode. Average procedure time and average number of scan were investigated by PACS or OCS program. Moreover, radiation dose of pre-set protocol and AMC-set protocol were compared using Lung/Chest phantom (Model RS-330, Fluke Biomedical, Everett, USA). Results : AMC protocol was enough to find out the lesion during the procedure as well as reducing radiation dose. Also, anatomical structures such as fissure, breast, scapula should be considered when we take patients’ posture. Conclusion : For successful CT-guided lung PCNB, it is important to do our best to reduce radiation to patients, to take an ideal patients’ posture and to make patients breathe steadily. Cooperation between radiologist, nurse, radiological technologist and patients is also important.