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아질산성질소 축정용 FIA의 제작 및 용용에 관한 연구 (광주광역시 광주천 시료를 대상으로)
이재성 ( J. S. Rhee ),박완철 ( W. C. Park ),이수원 ( S. W. Lee ),김용준 ( Y. J. Kim ) 한국물환경학회 2002 한국물환경학회지 Vol.18 No.3
In this study, home-made detection system by means of noble FIA is introduced on the measurement of toxic nitrite in the water samples collected from the area of Kwangju. As the standard calibration between 30 to 1000 ppb, the linearity has been shown more than 0.9999 as the correlation coefficient(R^2) with the detection limit 1.5 ppb(S/N>2). The distribution of sample concentration was monitored as N.D. - 123 ppb which is wide span of concentrations in field water samples. The low level of nitrite is hardly detectable with other expensive sophisticated instruments including ion chromatography. Whereas the result of high concentration brings forth the necessity monitoring constantly our precious water resources. Successfully, the FIA system has played a very important role detecting wide span of nitrite in water sample. This technique can be adopted for controlling our environment in the near future.
이재성,최선미,안춘모,유영상,J.S. Lee,S.M. Choi,C.M. Ahn,Y. Yoo 한국전자통신연구원 2023 전자통신동향분석 Vol.38 No.4
Cyberspace is emerging as a critical domain requiring national-level governance and international cooperation owing to its potential financial and societal impacts. This research aims to investigate the cybersecurity policies from major countries for understanding with comprehensive perspectives. Global trends emphasize a comprehensive command-centered approach, with top leadership directing cybersecurity policies. Key policy areas include security across technology ecosystems, protection of critical infrastructure, and software supply chain security. Investment is being focused on zero-trust architectures, software bills, and new technologies like artificial intelligence. For countries like Korea, immediate response and adaptation to these trends are crucial to develop and enforce national cybersecurity policies.
초음파에너지를 이용한 가솔린 인젝터의 충돌분무특성에 관한 연구
이재성(J.S.Lee),윤면근(M.K.Yoon),류정인(J.I.Ryu) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_1
In this experiment, we used the collisional spray and the ultrasonic energy adding system to minimize the droplets. So we obtained the small droplets by the collisional effect and the ultrasonic energy effect. To obtain the collisional droplets, we used the intake valve. The ultrasonic energy fuel system is composed the step-type horn coupled the inner bolted Langevin type transducer and the gasoline injector. We measured the droplets(SMD) around the model intake valve using the Malvern 2600D system with a variation of the injection pressure and test position.<br/>
딥러닝 자연어처리(NLP)와 일반수사학 (General Rhetoric)과의 융합적 접점 분석 - 그룹 뮤(Groupe μ)의 『A General Rhetoric』을 중심으로
지승학 ( Chi Seung-hak ) 한국기호학회 2020 기호학연구 Vol.64 No.-
본 논문에서는 그룹 뮤(Groupe μ)의 『일반수사학』에서 주목하고 있는 시학과 수사 학적 언어의 형태와 RNN 언어모델의 구조적 유사성을 분석하고자 한다. 여기에서 주로 동원되는 것은 시학과 수사학적 언어의 기능을 분류하는 ‘메타볼’(Metaboles)의 유 형이다. 특히 메타볼은 본 논문에서 다루게 될 ‘수사학적 공간’의 아이디어로 발전하여 딥러닝 기술을 통한 자연어처리와 실질적으로 연결될 수 있다는 점에서 중요한 개념이라고 할 수 있다. 또한 수사학적 공간 개념을 RNN 언어모델에 적용하기 위해서는 무엇보다도 정밀한 언어 데이터 셋 마련과 적확한 ‘의미의 영점’(Degree-Zero) 마련 역시 중요하다. 이런 사실은 결국 학문적 융합이 현재 A.I. 기술에 얼마나 필수적인지를 보여준다. 마지막으로 『일반수사학』의 내용은 현재의 딥러닝 언어모델에서도 여전히 유효하다는 점에서 날카로운 혜안을 증언하고 있으며 우리에게 여전히 인문학과 공학의 초학제적 태도는 중요할 수밖에 없음을 보여준다. In this article, I attempt to analyze the structural similarity between the semantic structure of poetry and rhetorical language on which Groupe μ is focusing and the RNN language model. The main focus of this article was concentrated on the type of ‘metaboles’ that categorizes the functions of poetry and rhetorical language. This type and its insight are considerably useful not only in connection with natural language processing technology but also a application field. In particular, the approach for the idea of ‘rhetorical space’ can be substantially an important concept in terms of connection with deep learning technology of NLP. In addition, this approach shows the fact that it is the paramount importance to prepare a precise language data set which has ‘Degree Zero’ and ‘Subunits’ of the linguistic code. Ultimately, through this convergence analysis, we realize that the trans-disciplinary attitude of the humanities and engineering is inevitably important.