http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 이경민(Gyung-Min Lee) (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
이경민(Gyung-Min Lee),김휘강(Huy-Kang Kim) 한국컴퓨터정보학회 2018 韓國컴퓨터情報學會論文誌 Vol.23 No.12
As the IT industry developed, the information held by the company soon became a corporate asset. As this information has value as an asset, the number and scale of various cyber attacks which targeting enterprises and institutions is increasing day by day. Therefore, research are being carried out to protect the assets from cyber attacks by using the attack graph to identify the possibility and risk of various attacks in advance and prepare countermeasures against the attacks. In the attack graph, security metric is used as a measure for determining the importance of each asset or the risk of an attack. This is a key element of the attack graph used as a criterion for determining which assets should be protected first or which attack path should be removed first. In this survey, we research trends of various security metrics used in attack graphs and classify the research according to application viewpoints, use of CVSS(Common Vulnerability Scoring System), and detail metrics. Furthermore, we discussed how to graft the latest security technologies, such as MTD(Moving Target Defense) or SDN(Software Defined Network), onto the attack graphs.
-
살구 중 Flonicamid 및 그 대사산물의 잔류특성 연구
김영진 ( Yeong-jin Kim ),최성길 ( Sung-gil Choi ),권영상 ( Young-sang Kwon ),이경민 ( Gyung-min Lee ),김종환 ( Jong-hwan Kim ) 한국환경농학회 2020 한국환경농학회 학술대회집 Vol.2020 No.-
This study was conducted to investigate residual characteristics of Flonicamid and metabolites among minor crop apricots, evaluate safety and use them as data for expanding the registration of pesticides. The test pesticide was harvested after diluting Flonicamid 10 % water dispersible granule (WG) 2,000 fold and spraying it from 50 days before harvest to 7 days before harvest. 10mL of acetonitrile containing 5% acetic acid was added to 10g ± 0.05g of homogenized sample, and after shaking for 10 minutes, a sample was extracted by adding a QuEChERS (Original)kit. The extracted sample was analyzed for Flonicamid, metabolites TFNA, and TFNG using LC-MS/MS. Standard calibration curves were made by matrix matched standards and their correlation coefficients were higher than 0.99. The method limit of quantitation (MLOQ) was each 0.02 mg/kg for Flonicamid and metabolite TFNA, TFNG. Average recovery rates of Flonicamid, metabolites TFNA, and TFNG were 89.2-110.2 %, 91.4-103.8 %, and 95.8-113.6 %, respectively. The converion residue amounts of Flonicamid at 50-40 DAT (days after treatment) were 0.12- 0.15 mg/kg, 40-30 DAT were 0.16-0.17 mg/kg, 30-21 DAT were 0.10-0,11 mg/kg, 21-14 DAT were 0.11-0.15 mg/kg, 14-7 DAT were 0.11-0.21 mg/kg, respectively. Residual concentration of Flonicamid in the crop was increased as spraying more closer to harvest day. The percentage of estimate daily intake(%EDI) compared to ADI based on the residual amount of Flonicamid in apricots from 0.0018% to 0.0034%. The %ADI was considered safe at less than 10%.
-
-
박현경(Hyun-kyung Park),정지원(Ji-Won Jeong),이경민(Gyung-Min Lee) 한국산학기술학회 2018 한국산학기술학회논문지 Vol.19 No.5
최근에 안전기준과 환경규제 강화의 증대로 인해, 차체의 경량화에 대한 연구가 지속적으로 증가하고 있다. 고강도강의 응용은 가장 보편화 된 차체 경량화의 효과적인 방법 중에 하나이다. TWB(Tailor Welded Blank)는 다양한 두께와 용접을 사용하여 부분적인 강도와 경량화를 만족시키는 주요한 공법으로 활용되고 있다. 그러나 추가적인 용접공정으로 인해 판재간의 용접성이 중요하고 용접부에 대한 품질관리가 중요하다. 이점을 개선하기 위해, TRB(Tailor Rollded Blank)공법이 제안되었다. TRB는 롤러 압력을 조절하여 판재의 두께를 다르게 하고, 용접을 사용하는 TWB 공법보다 추가적인 용접공정이 없기 때문에 생산 비용적인 측면에서 훨씬 더 효율적이다. 본 연구에서는 Blank의 압연 영향을 조사하기 위해 스탬핑용 고강도강 TRB 판재의 성형성을 분석하였다. 성형성을 분석하기 위해, TRB 판재에서 0.8 mm, 1 mm의 두께를 갖는 부분을 채취 하여 시험하였다. 시편에 새겨진 그리드마킹의 변형도를 분석하여 변형률을 조사하였고, 0.8 mm와 1.0 mm의 두께를 갖는 TRB 시편으로 Erichsen 시험을 한 후에 FE분석을 활용하여 성형성과 고유진동수를 비교하였다. Recently, research on lightweight automobiles is increasing continuously to respond to the high safety standards and environmental regulations. The application of high strength steel is one of the effective methods for developing lightweight car bodies. A TWB (Tailor Welded Blank) is major method that allows partial high strength with light weighting using a multi-thickness and multi-material welded blank. On the other hand, additional welding process is required to prepare the blank and quality control for the welding process also required. To secure this point, the TRB (Tailor Rolled Blank) method was suggested. In the TRB method, the thickness of sheet is controlled by the rolling presses and the production efficiency is much higher than welding in TWB methods. In this study, the formability of high strength TRB steel plate was analyzed to examine the rolling effect of the blank. The formability of the specimen was tested using 0.8 and 1 mm thick steel sheets for the TRB plate. The strain was analyzed by the digital image sensing of grid markings on the specimen and the forming limit diagram was calculated. An Erichsen test for the 0.8 and 1 mm thick TRB specimens was carried out and the formability was investigated by comparing with FE analysis.
-
신이식술 시 발생한 폐부종환자에 적용한 비침습적 지속성 기도양압법의 치료효과
이영복,최재찬,임재우,이경민,임현교,김순열 대한마취과학회 2000 Korean Journal of Anesthesiology Vol.39 No.4
Non-invasive positive pressure ventilation (NIPPV) was mainly applied to acute respiratory failure in chronic obstructive pulmonary disease (COPD) and to intrinsic lung disease such as neuromuscular disorders. It hss been reported that this maneuver reduces morbidity, mortality and hospital stay in patients in the intensive care unit, We observed a 32-year-old female renal transplantation patient who developed pulmonary edema during the perioperative state. The mainteance of an endotracheal tube in intubated patients who were on immunosuppresive therapy might increase nosocomial pneumonia significantly. In this case, the mortality increase was expected, therefore we considered that early extubation and mask continuous positive airway pressure (mask CPAP) could help. By using mask CPAP, the patient showed a good response and the pulmonary edema was improved. We report a case about the benefits of NIPPV in the treatment of pulmonary edema in an immunosuppressed patient of which the result was very satisfactory.
ScienceON
DBpia연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
