로커암 밸브 트레인의 동적 탄성유체윤활 유막 연구 ( Dynamic Elastohydrodynamic Film Thickness in Rocker-Arm Valve Train System )

이희락,장시열 한국트라이볼로지학회 2000 한국트라이볼로지학회 학술대회 Vol.32 No.-

나노 펄스 레이저를 이용한 은 나노입자 어블레이션에서 기판이 어블레이션 에너지에 미치는 영향

이희락,문윤재,황준영,최정현,문승재 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.5

나노 초 펄스레이저를 이용한 은 나노 입자층 어블레이션에 미치는 열 영향부의 영향

이희락,문윤재,황준영,문승재 대한기계학회 2018 대한기계학회 춘추학술대회 Vol.2018 No.5

IoT 기반 화장(火葬) 안내 자동화 지원 시스템 설계

이희락,김재웅 한국지식정보기술학회 2017 한국지식정보기술학회 논문지 Vol.12 No.4

Changes in trends and national sentiment are gradually changing funeral culture from burial to cremation. A number of cremation facilities are newly introduced to the funeral facilities and the number of cremation is increasing every year. As the number of visitors to cremation facilities increases, the need for proper guidance systems is also increasing. However, cremation facilities at Funeral Cultural Center are not equipped with automation due to the nature of facilities. Even if it is equipped, the automation is insufficiently applied. In this paper, We suggest a solution of the problem that the ending signal is not generated by the different business process as per each cremation object in the cremation facility adopting the automation system. We would like to design the system which mounts IoT-based automation support module which guides cremation progress on the car using for funeral. The construction of the cremation progress guide automation system will provide precise progress to the mourners, simplify complicated procedures such as wired wireless communication between the managers in the field and the management room, and reduce the burden on the field support personnel. The support system is designed to be lightweight and wireless so that it does not interface with the cremation work.

Gerund Phrases as NPs with N Heads: No Empty or Mixed Categories

채희락 현대문법학회 2006 현대문법연구 Vol.43 No.-

채희락(2020)의 서평을 읽고

채희락 형태론 2022 형태론 Vol.24 No.1

필자는 다음 제목의 형태-통사론 및 통사론 분야 책을 (이하 “책”이라 칭함) 2020년에 영국의 Routledge 출판사에서 출판하였다: [Korean Morphosyntax: Focusing on Clitics and their Roles in Syntax]. 영광스럽게도 국어학계의 대원로이신 고영근 서울대 명예교수께서 2021년 『형태론』 23권 2호의 216-226쪽에 이 책의 서평을 (이하 “서평”이라 칭함) 써 주셨다. 책 내용의 장단점을 모두 언급하셨지만 전체적으로는 긍정적으로 평가를 해 주신 것에 감사한다. 이 글의 목적은 서평에서 지적해 주신 부분에 대해 소명의 기회를 가짐과 동시에 책을 읽는 독자들에게 책의 전체적인 윤곽을 파악하는 데에 도움이 될 수 있도록 하는 것이다. 먼저 책의 주요 내용을 살펴 보고 다음으로 지적해 주신 부분을 용어 불일치로 인한 것과 문법관 차이로 인한 것으로 나누어 검토하려고 한다. 서평과 이 글의 출판을 계기로 국어학계와 (일반) 언어학계가 좀 더 활발하게 교류할 수 있게 되기를 바란다.

이동동사의 정의와 분류

채희락(Hee Rahk Chae) 현대문법학회 1999 현대문법연구 Vol.15 No.-

In this paper, we will, firstly, examine morphological, syntactic and semantic issues related to the analysis of locomotion verb constructions. Secondly, after showing that locomotion verbs cannot be properly defined syntactically on the basis of the complements they take, we will provide a semantic definition of them and then a new classification of them. The classification will be based on a couple of parameters: whether the “Figure (moving entity)” is a subject or an object, and whether it is an Agent or not. In providing the definition and classification, we will make it clear that locomotion verbs are different from “motion verbs.” In addition, we will factor out a group of “pseudo-locomotion verbs” from the group of locomotion verbs in the traditional sense. Lastly, we will clarify the relationship between locomotion verbs and the -le complement, which is assumed to uniquely characterize the Korean locomotion verbs in syntactic approaches. We will show that there are two groups of verbs which can take the complement (one is a subgroup of locomotion verbs and the other is a group of non-locomotion verbs), and that the complement shows different properties in each of the two groups.

정치인 이미지 형성 메커니즘에 관한 연구-플라시보 효과와 노시보 효과를 중심으로

전희락 한국정치커뮤니케이션학회 2010 정치커뮤니케이션 연구 Vol.16 No.-

1960년, 텔레비전 토론 시작 이후부터 이미지 정치에 대한 논란이 가속화되었다. 그 중 하나는 이미지 정치가 실체를 담보하지 못한 허상이라는 비판이었다. 본 연구는 이들 비판을 검토하여 대략 6가지로 정리했다. 본 연구는 이미지 정치 비판은 이미지의 형성 메커니즘에 대한 오해로부터 야기되었다고 보고, 이미지 구성체와 함께 심리학의 플라시보 효과와 함께 노시보 효과 개념을 차용하여 스키마 이론과 함께 이미지 형성 및 확산 메커니즘에 대해 검토하였다. 그 결과에 의하면 이미지 형성 메커니즘에 초두효과와 최신효과가 영향을 미치거나, 사회적 동조현상에 의한 이미지 확산 메커니즘에서 대중매체의 공명성으로 일시적 플라시보 효과가 나타날 수도 있으나, 지속되는 ‘이미지 경합 메커니즘’ 속에서 플라시보의 정체를 숨기는 것은 어렵다. 플라시보의 정체가 밝혀지면 즉각적인 노시보 효과로 인해 정치인의 이미지는 손상을 받기 때문에 실체를 배제한 정치인 이미지 형성이나 사회적 확산은 불가능하다. 또한 정치 상황은 항상 ‘이미지 경합 메커니즘’에서 이루어지는데, 이미지는 스스로 만들어지고 성장하기도 하는 독립성과 자율성 그리고 상대 정치인과의 이미지 경합을 통해 이미지의 확대 및 축소가 이루어지는 상대성을 갖는다는 사실을 밝혀냈다. Arguments about image politics have been continued since 'The Greate Debate on Television' came true in 1960. One of arguments is criticism of a false image that politician image couldn't comprehend substance of politician. This paper classified these criticism to 6 category. This paper have regarded that criticism about image politics have caused from misunderstanding about image making mechanism. Therefore this paper studied on making mechanism and diffusion mechanism of politician image using image construct theory and psychological concepts of placebo effects and nocebo effects. The results of this paper disclosed that the placebo effects may be occurred temporarily in image making mechanism by the first effects and the recent effects and in diffusion process by mass media resonance in social sympathy phenomenon. But the placebo effects can't have continuously influence on in the image making mechanism and the diffusing mechanism, because one politician can't conceal placebo identity in competition situation in a example of election situation, and because a politician's image will be damaged and disappeared if people know the identity of placebo, the nocebo effects may occur immediately. Therefore a politician's image can't be made excluding his substances and the diffusing of his image can't be impossible. And this paper disclosed that the image making mechanism and the diffusing mechanism are working in image competition circumstance and that both of these mechanism have the self-independent and autonomous trait and the relative trait. The self-independent and autonomous trait is so-call that if the image of a politician have been made first and his image increase by itself, and the other is that if one politician increase his good image, otherwise the image of his opponent relatively reduce his good image or increase his bad image on the contrary in competition situation among politicians.

Pb₂C₂O₄(NO₃)₂ㆍ2H₂O의 제조 및 특성평가

최희락(Hee-Lack Choi) 한국해양공학회 1997 韓國海洋工學會誌 Vol.11 No.1

On the precipitation and ripening reaction of the precipitates from a lead nitrate and an oxalic acid dissolved in ethanol, a new crystalline phase was obtained, whose X-ray diffraction data have not previously been reported. The crystal system was determined to be monoclinic. The unit-cell parameters were refined to a =10.613(2)Å, b =7.947(2)Å, c =6.189(1)Å, and β =104.48(2)°.

수직 콘크리트 도로구조물 적용을 위한 가압식 TiO2 고정화 방안에 대한 기초연구

안희락,이승우,김영규 한국도로학회 2021 한국도로학회논문집 Vol.23 No.1

PURPOSES : Nitrogen oxides (NOx) are the main precursors to generate fine particulate matter, which significantly contribute to air pollution. NOx gases are transmitted into the atmosphere in large quantities, especially in areas with a high volume of traffic. Titanium dioxide (TiO2), which is a photocatalytic reaction material, is very efficient for removing NOx. The application of TiO2 to concrete road structures is a good alternative to remove NOx. Generally, TiO2 concrete is produced by mixing concrete with TiO2 . However, a significant amount of TiO2 in concrete cannot be exposed to air pollutants or UV. Therefore, an alternative method of penetrating TiO2 into horizontal concrete structures using a surface penetration agent was proposed in a previous study. This method may not only be economical but also applicable to various types of horizontal concrete structures. However, the TiO2 penetration method may not be applied to vertical structures because it has a mechanism for the penetration of TiO2-containing penetration agents via gravity and capillary forces. Therefore, this study aimed to evaluate the applicability of the pressurized TiO2 fixation method for existing vertical road structures. METHODS : For the application of vertical concrete structures — such as retaining walls, side ditches, and barriers — the applicability of a static and dynamic pressurized TiO2 fixation method was evaluated according to the experimental conditions, considering the amount of pressure and time. The penetration depth and distribution of TiO2 particles in the concrete specimen were measured using SEM/EDAX. In addition, the NOx removal efficiencies of TiO2 concrete were evaluated using the NOx analysis system. RESULTS : As a result of measuring the penetration depth and distribution of TiO2 in the concrete, it was found that the surface-predicted mass ratio increased with increasing pressure and time. In the case of the static pressurized fixation method, it was confirmed that a pressure time of at least 10 s at a pressure of 0.2 MPa and 5 s at a pressure higher than 0.3 MPa were required to achieve a NOx removal efficiency higher than 40 %. Conversely, for the dynamic pressurized fixation method applying a hitting energy of 16.95 J, NOx removal efficiencies higher than 50 % were secured in a pressure time of more than 3 s. CONCLUSIONS : The results of this study showed that the static and dynamic pressurized TiO2 fixation method was advantageous in penetrating and distributing TiO2 particles into the concrete surface to effectively remove NOx. It was confirmed that the proposed method to remove NOx was sufficiently applicable to existing vertical concrete road structures.