http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Development and Experimental Testing of an Autonomous Jellyfish Detection and Removal Robot System
Kim, Donghoon,Shin, Jae-Uk,Kim, Hyungjin,Kim, Hanguen,Lee, Donghwa,Lee, Seung-Mok,Myung, Hyun Institute of Control, Robotics and Systems 2016 International Journal of Control, Automation, and Vol.14 No.1
The development of an autonomous jellyfish removal robot system, named JEROS, and related experimental results are presented in this paper. The number of jellyfish has drastically increased due to changes to the marine environment. Large jellyfish swarms are threatening marine ecosystems and inducing enormous damage globally to marine-related industries. JEROS has been designed based on a twin hull-type surface vehicle equipped with a device for shredding jellyfish. Additionally, an electrical control system, a guidance, navigation, and control (GNC) system, and a vision-based jellyfish detection system are embedded to remove jellyfish autonomously. The jellyfish removal mission starts when the location of jellyfish is detected, followed by planning a path for jellyfish removal, tracking the path using an autonomous navigation system, and shredding jellyfish while tracking. The performance of the vision-based jellyfish detection, navigation, and jellyfish removal was demonstrated through experiments in a pond and field tests in Masan Bay located on the southern coast of South Korea.
Han, Donghoon,Kim, Yang-Rae,Oh, Jeong-Wook,Kim, Tae Hyun,Mahajan, Rakesh Kumar,Kim, Jong Seung,Kim, Hasuck Royal Society of Chemistry 2009 The Analyst Vol.134 No.9
<P>We have developed a selective, sensitive, and re-usable electrochemical sensor for Hg<SUP>2+</SUP> ion detection. This sensor is based on the Hg<SUP>2+</SUP>-induced conformational change of a single-stranded DNA (ssDNA) which involves an electroactive, ferrocene-labeled DNA hairpin structure and provides strategically the selective binding of a thymine–thymine mismatch for the Hg<SUP>2+</SUP> ion. The ferrocene-labeled DNA is self-assembled through S–Au bonding on a polycrystalline gold electrode surface and the surface blocked with 3-mercapto-1-propanol to form a mixed monolayer. The modified electrode showed a voltammetric signal due to a one-step redox reaction of the surface-confined ferrocenyl moiety. The ‘signal-on’ upon mercury binding could be attributed to a change in the conformation of ferrocene-labeled DNA from an open structure to a restricted hairpin structure. The differential pulse voltammetry (DPV) of the modified electrode showed a linear response of the ferrocene oxidation signal with increase of Hg<SUP>2+</SUP> concentration in the range between 0.1 and 2 µM with a detection limit of 0.1 µM. The molecular beacon mercury(<SMALL>II</SMALL>) ion sensor was amenable to regeneration by simply unfolding the ferrocene-labeled DNA in 10 µM cysteine, and could be regenerated with no loss in signal gain upon subsequent mercury(<SMALL>II</SMALL>) ion binding.</P> <P>Graphic Abstract</P><P>This sensor is based on the Hg<SUP>2+</SUP>-induced conformational change of a single-stranded DNA which involves an electroactive, ferrocene-labeled DNA hairpin structure and provides strategically the selective binding of a thymine–thymine mismatch for Hg<SUP>2+</SUP> ion. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b908457f'> </P>
김동훈 ( Donghoon Kim ),권동근 ( Donggeun Kwon ),김성겸 ( Seonggyeom Kim ),홍득조 ( Deukjo Hong ),성재철 ( Jaechul Sung ),홍석희 ( Seokhie Hong ) 한국정보처리학회 2020 한국정보처리학회 학술대회논문집 Vol.27 No.2
최근, 딥러닝 기술을 활용하여 암호 알고리즘 식별, 평문 복구, 이론적 암호분석을 향상시키는 방법 등이 제안되고 있다. 이 중, 2019년에 Xiao 등이 암호학적 특성을 고려되지 않고 2-라운드 DES의 평문복구 공격에 딥러닝을 적용하는 방법을 제안하였다. 본 논문에서는 이러한 기법을 향상하여 암호문과 평문의 선형 연관성을 고려한 평문 복구 공격을 딥러닝을 통해 수행하는 방법을 제안한다. 이를 활용하여, PRESENT의 평문 복구 공격을 5-라운드까지 가능함을 보인다.