• 한국콘텐츠학회논문지
• /
• 제20권10호
• /
• pp.268-283
• /
• 2020

본 연구에서는 중국의 대표적인 탄막 동영상 사이트인 비리비리(Bilibili)를 중심으로 미디어 노출 신체이미지와 탄막의 이용이 다이어트 의도에 미치는 영향을 살펴보았다. 20대 중국인 여성 310명을 대상으로 온라인 실험 연구가 진행되었으며, 3 (탄막 여부: 탄막 없음 vs. 신체이미지 칭찬하는 탄막 vs. 신체이미지 비판하는 탄막) x 2 (미디어 노출 신체이미지: 이상적 vs. 현실적) 피험자 간 설계로 이루어졌다. 주요 연구 결과를 살펴보면, 이상적인 신체이미지를 칭찬하는 탄막과 현실적인 신체이미지를 비판하는 탄막에서 시청자의 다이어트 의도가 더 강하게 나타났다. 더 나아가, 시청자의 다이어트 의도는 현실적인 신체이미지를 탄막 없이 볼 때보다 이상적인 신체이미지를 탄막과 같이 볼 때, 그리고 현실적인 신체이미지를 비판하는 탄막을 볼 때보다 이상적인 신체이미지를 칭찬하는 탄막을 볼 때 더 강하게 나타나는 것을 확인하였다. 이러한 연구 결과는 사회적 시청의 방식 중 하나로서의 탄막의 이용과 수용자의 행동 의도에 미치는 영향을 이해하는 데 도움이 될 것이다.

• 대한인간공학회:학술대회논문집
• /
• 대한인간공학회 1995년도 추계학술대회논문집
• /
• pp.62-74
• /
• 1995

This study surveys four characteristics (overall density, local density, grouping, complexity) to effect user's performance on the on-line terminal displays of commercial banks, and makes the new screen by the screen design procedure. The new screen includes to increase the number of groups and to arrange the items on the screen. And then, this study carrys out experiments to compare performance(operating time and error number ) by each screen. The result is described that the operating time decreases about 20% at the new OUT-screen than the existing OUT-screens; about 25% at the new IN-screen.

• 농업과학연구
• /
• 제43권3호
• /
• pp.496-505
• /
• 2016

The purpose of this study was to investigate the economic effects of a flame retardant aluminum screen developed by a company Economic effects were analyzed in terms of micro and macro-economic aspects. In the macro-economic aspect, economic effects were analyzed under the assumptions that the total import volume of flame retardant aluminum screen was approximately $50m^2$ in 2015 and that possible import substitution rates were 100%, 80%, and 60%. Results showed economic values of 2.25 billion won (100% import substitution rates), 1.8 billion won (80% import substitution rates), and 1.35 billion won (60% import substitution rates). If existing farms which had been using imported flame retardant aluminum screen replaced it newly developed with the flame-retardant aluminum screen developed in this study at rates of 100%, 80%, and 60%, the farms could save 750 million won, 60 million won, and 45 million won, respectively. Furthermore, the social cost savings from fire prevention could be 1.184 billion won. In the micro-economic aspect, if a farm with a typical-size ($1,000m^2$) greenhouse growing red pepper wanted to install flame retardant aluminum screen instead of generic aluminum screen, the farm may only pay an additional cost of 720,000 won. In comparison, if the farm chose fire insurance instead of flame-retardant aluminum screen, then the farm would pay 21,000,000 won for fire insurance. The above results show that the economic effect of flame retardant aluminum screen developed by the company would be be very efficient compared to the imported one.

• 한국환경과학회지
• /
• 제13권6호
• /
• pp.591-597
• /
• 2004

In this study, sixty chemicals including 47 pesticides were screened for estrogenic activity using E-screen assay. MCF-7 cell, used in E-screen assay, is known to be proliferated by addition of estrogenic chemicals. Eight of the measured pesticides showed estrogenic activity at the concentration range of 100-10,000nM. Their relative proliferative effect (RPE) and the relative proliferative potency (RPP) were 20-65% and 0.01-1.0%, respectively, when compared with 1.0nM of $\beta-Estradiol-17-acetate(E_{2}).$ DDVP and diazinone showed most strong estrogenic potency(RPP; 1.0%) and effect(RPE; 65%) of the eight pesticides. These results are in agreement with estrogenic activity of bisphenol A is known as a positive endocrine disrupter. Also, in this study, paraquat, DDVP, 4-chloro-3-methylphenol, 2,4,6-trichlorophenol and diazinon of the measured pesticides are estimated to estrogenic chemical.

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2007년도 춘계학술대회B
• /
• pp.3150-3155
• /
• 2007

This paper describes an experimental work to investigate the effect of mesh screen device on the jet structure and acoustic characteristics of over-expanded supersonic jet. The mesh screen device is placed into the supersonic jet stream. In order to perturb mainly the initial jet shear layer, the hole is perforated in the central part of the mesh screen. The diameter of the perforated hole and the location of mesh screen device are varied. A Schlieren optical system is used to visualize the flow fields of supersonic jet without and with the mesh screen device. Pitot pressure measurement is carried out to obtain the pressure distribution in the jet flow. Acoustic measurement also is performed to obtain the OASPL and noise spectra. The results obtained show that the jet structure and the jet noise control effectiveness is strongly dependent upon the diameter of the perforated hole and the location of the mesh screen device in the jet stream. Provided that the mesh screen device is placed at the location to perturb effectively the initial shear layer, the present control method is effective in suppressing the supersonic jet noise.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2007년도 추계학술대회 논문집
• /
• pp.1337-1345
• /
• 2007

본 연구는 플랫폼 스크린도어가 설치된 역사에서 화재시 스크린도어에 의한 효과와 화재에 대한 방재연구를 체계적으로 진행하기 위한 기초연구이다. 본문에는 스크린 도어의 종류와 특징에 대하여 기술하였다. 본 연구의 대상이 되는 스크린 도어에는 완전밀폐형이 설치된 역사를 대상으로 하였으며 승강장 종류는 섬식 승강장이다. 스크린 도어가 설치된 역사의 화재유동 전산수치모사에 화재전용 CFD code를 이용하여 수행하였다. 플랫폼 스크린도어의 영향을 분석하기 위하여 스크린도어가 설치된 경우와 설치되지 않은 경우를 해석 하였다. 또한 화원의 위치는 승강장과 선로부에 있는 경우로 나누었다. 화원의 성장시나리오는 Ultrafast model로 하였으며, 화원크기는 10MW로 하였다. 해석결과 플랫폼 스크린도어가 설치된 경우는 화원의 위치가 승강장에 있을 때 온도 및 연기의 전파가 주 탈출구인 계단에까지 4분 이내로 전파된다. 선로부에 있을 때는 스크린 도어에 의해 열, 연기 전파의 차단 효과가 있었다.

• 한국기계가공학회지
• /
• 제17권6호
• /
• pp.177-185
• /
• 2018

There is a need to study dust separator screens with good drainage efficiency while effectively filtering suspended solids and other contaminants entering the intake pumping station, the drainage pumping station and the mediation pumping station, the cooling water inlet of the power plant, and the like. In this paper, Numerical studies were conducted for the optimal design of the dust separator screen using the Coanda effect. The shape of the dust separator screen is important, such as the right curvature radius $R_1$ at the top of the dust separator screen and the left curvature radius $R_2$ at the top, h is the height difference and shape between the screen and the accelerating plate, and ${\theta}$ is the inclination angle of the screen. A total of 4 shape factors were set and the effects of Coanda and drainage performance of each element were compared and analyzed, the optimum length and size of each shape element were derived by classifying the shape elements into direct and indirect influences. Finally, it was possible to effectively filter foreign matter by narrowing the screen spacing, and the drainage performance was analyzed and optimized through numerical studies of dust separator screen.

• Human Ecology Research
• /
• 제61권2호
• /
• pp.169-182
• /
• 2023

This study aimed to investigate the mediating effect of the screen media time of young children on the relationship between mothers' reasons for allowing young children to use screen media and their children's ability to regulate screen media. The participants consisted of 614 children aged 5-6 (312 boys and 302 girls), and all the survey questions were answered by their mothers. Descriptive statistics, Pearson's correlation, structural equation modeling, and bootstrapping analysis were employed to analyze the data using SPSS 25.0 and Mplus 8.6. The results were as follows. First, mothers' educational and ritualized reasons for allowing young children to use screen media and children's screen media time directly affected young children's ability to regulate screen media. Second, children's screen media time mediated the relationship between mothers' educational and ritualized reasons for allowing their children to use screen media and children's ability to regulate screen media. When mothers permitted their children to use screen media for educational purposes, their children were likely to spend less time on screen media usage which, in turn, increased their ability to regulate screen media. Conversely, the more mothers allowed their children to use screen media for ceremonial purposes, the more time their children spent on screen media and the less ability they had to regulate screen media usage. These outcomes suggest that, to improve children's screen media regulation ability, mothers must not routinely allow their children to use screen media and should manage their children's screen media time.

• International Journal of Internet, Broadcasting and Communication
• /
• 제15권2호
• /
• pp.157-167
• /
• 2023

As a new trend in the development of urban public spaces, the use of right-angle LED screens perfectly combines building facades with naked-eye 3D visual effects, providing designers with a brand-new creative platform. How to create a realistic naked-eye 3D effect on a right-angle LED screen and bring an immersive visual experience to the audience has become a question worth exploring. So far, production companies have yet to announce the relevant design ideas and complete production methods. In order to explore the production principle and production process of the naked-eye 3D effect of the right-angle LED screen, we summarize the basic production principle of the naked-eye 3D impact of the right-angle LED screen through case analysis. Based on understanding the production principle, the actual case production test was carried out, and a complete production process of the naked eye 3D visual effect of the right-angle led screen was tried to be provided by off-line rendering. For the problem of how to deal with image deformation, we provide two production methods: post-production software correction and UV mapping. Among them, the UV mapping method is more efficient and convenient. Referring to this paper can help designers quickly understand the production principle of the naked eye 3D effect of right-angle LED screens. The production process proposed in this paper can provide a reference for production method for related project producers.

• 한국콘텐츠학회논문지
• /
• 제17권12호
• /
• pp.473-484
• /
• 2017

본 연구의 목적은 스크린 스포츠 테마파크의 마케팅믹스, 제약요인 및 재방문의도 간의 인과관계를 실증적으로 검증하는데 있다. 이런 목적을 위해 편의표집방법을 이용하여 서울과 대구에 위치한 스크린 스포츠 테마파크를 이용하는 253명의 고객을 대상으로 설문조사를 실시하였고, 수집된 자료는 빈도분석, 상관관계 분석 및 다중회귀분석을 통해 분석되었다. 주요 연구결과는 다음과 같다. 첫째, 스크린 스포츠 테마파크의 마케팅믹스는 고객의 제약요인에 유의한 영향을 미치는 것으로 나타났다. 둘째, 스크린 스포츠 테마파크의 마케팅믹스는 고객의 재방문의도에 유의한 영향을 미치는 것으로 나타났다. 셋째, 스크린 스포츠 테마파크 방문객의 제약요인 중 내재적 제약요인만이 재방문의도에 유의한 영향을 미치는 것으로 나타났다.