• 한국안전학회지
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• 제35권2호
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• pp.67-75
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• 2020

Due to various industrial accident that occur to the staff in the broadcasting production sites, the issue of safety at the broadcast production site is becoming a social issue. Nevertheless, not many researches have been carried out on the actual conditions of the staff's production environment and its safety issues. Therefore, the purpose of this study was to prepare a countermeasure based on engineering knowledge by analyzing working environment to improve the poor working environment of staff. First, this study analyzed statistical data of industrial accidents over the past five years to find out the current status of disasters at broadcasting production sites. As a result, the intensity of the accident was not weak in that the loss days was more than one month in 85% of accident. In addition, the type of accident was high in the fall/trip accidents. Second, this study visited 10 broadcasting production sites for risk assessment. By analyzing the characteristics of the working environment and 104 questionnaires, we predicted the types of accidents that can occur in the broadcasting production site. As a result, accident types such as fall, collision, and trip were relatively high, similar to the characteristics of construction site. Third, it was possible to quantify the scale of the risk in the broadcasting production, and as a result, the quantity of temporary structure and accident risk were proportional. In other words, this study analyzes broadcasting work environment and defines risk factors based on safety engineering knowledge. Finally, this study suggested a guideline to improve the safety of the broadcasting production site.

• 한국응용곤충학회지
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• 제56권1호
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• pp.77-81
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• 2017

환경오염원으로부터 지역별 솔잎혹파리 피해도의 차이를 조사하기 위하여 실시한 결과, 솔잎혹파리 충영형성율은 석유화학공단에 의한 환경오염이 심각한 상황에 있는 공단지역은 충영형성률 47.94%이었고, 대조지역은 9.94%였다. 솔잎혹파리 피해엽은 공단지역 피해엽의 길이는 평균 4.5 cm 였으며, 대조지역은 평균 4.9 cm 이었다. 솔잎혹파리 피해엽의 충영내 유충의 수는 공단지역은 평균 3.4개체이었고, 대조지역은 2.4개체 이었다. 성숙유충의 크기는 공단지역이 유충체장은 2.40 mm, 체폭은 0.7 mm 이었으며, 대조지역의 유충체장은 2.45 mm, 체폭은 0.71 mm 이었다.

• 한국산업정보학회논문지
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• 제5권4호
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• pp.73-80
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• 2000

본 논문에서는 NIN적으로 구현된 웹사이트와 직관적으로 명확한 웹사이트를 비교 분석하여 NIN적인 항해 설계가 지닌 단점을 보완하면서 시각적으로 우수한 직관적인 인터페이스를 웹사이트 유저들에게 제공할 수 있는 방법을 제시한다. NIN의 문제점을 안고 있는 웹사이트의 그래픽적 인터페이스를 본 논문에서 실험한 시각적 직관화로 개선하여 구매 의도를 가진 방문자가 시각적으로 뛰어나다는 느낌을 가질 수 있게 하면서도 직관적으로 사이트의 항해 구조를 쉽게 파악하게 할 수 있게 하였으며 또한 결제과정을 완료하기에 용이하도록 함으로써 인터넷 비즈니스 시스템의 고유 목적인 사업의 성공을 위한 토대를 마련하였다. 실험에 있어서 NIN적인 웹사이트는 실제로 운영되고 있는 사이트의 사례를 연구하였으며, NIN의 문제점을 시각적 직관화로 개선한 웹사이트의 구현에는 Flash 도구를 이용하였다.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2008년도 추계 공동 국제학술대회
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• pp.675-679
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• 2008

본 연구에서 웹사이트 구축시 Ajax를 사용하는 경우가 기존의 경우에 비하여 얼마만큼의 효율성을 갖는지를 비교 분석하였다. 본 연구에서의 성능비교는, 실제로 사용되는 웹사이트의 가장 적합한 환경을 비교하기 위해 ASP를 이용한 기존의 웹사이트 모델과 ASP.NET Ajax를 이용한 웹사이트를 같은 조건에서의 샘플사이트를 구축하여 비교 분석하였다. 두 사이트 모델의 각각에 데이터를 생성, 수정, 삭제, 질의 시의 응답속도 등을 비교 분석하였다. 실험을 통한 비교 분석 결과로 기존의 웹사이트 모델보다 Ajax를 이용한 모델의 응답속도가 향상된 것으로 나타났다.

• Environmental Engineering Research
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• 제12권2호
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• pp.46-54
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• 2007

Concentrations of the principal volatile organic compounds, such as benzene, toluene, ethylbenzene, m,p,o-xylene, styrene, and chlorobenzene were measured at the solid waste treatment plants classified into four categories; municipal waste incinerator, municipal waste landfill site, industrial waste incinerator and industrial waste landfill site. The average concentration of VOCs in industrial waste treatment facilities was 33.43 ppb and was significantly higher than that measured at municipal waste treatment facilities (4.71 ppb). The average toluene concentrations measured at incinerators (13.05 ppb) were a little higher than those measured at landfill sites (11.54 ppb). The contribution of the waste treatment facilities to the concentration of benzene (0.35 ppb) and o-xylene (0.15 ppb) in the industrial area was relatively small. However, toluene measured in the industrial waste treatment facilities was the most abundant VOCs with the average concentration of 21.37 ppb. As a result of analyses of fingerprint, in cases of IISH and ILUS, a variety of compounds other than major VOCs were detected in high level. On the Pearson correlation analysis, the correlation was generally positive and some pairs of these VOCs were very strongly correlated (correlation coefficient > 0.75).

• 대한안전경영과학회지
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• 제17권3호
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• pp.33-44
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• 2015

Domestic plant construction sites have a tendency to become bigger, more various and complicated. Moreover frequency of industrial incident is increasing due to short project period, coexistence work condition and using heavy construction equipment. Installing safety facilities and safety training contribute to prevent incident. But mostly incident happens due to workers' unsafe action and wrong work method. Technically, it is very difficult for us to closely manage workers preventing incident. Therefore, the role of foreman who ordinarily works together with his workers is considered more important. Specific execution plan was drawn through industrial incident statistics from Ministry of Labor and questionnaire survey to interest parties(supervisor, safety staff and foreman). If foreman has raised sense of belonging and responsibility by conducting practical safety training for his workers, manages job site and receives proper compensation for these roles, it will be expected that it fully influences incident decrease.

• International Journal of Internet, Broadcasting and Communication
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• 제8권1호
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• pp.64-68
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• 2016

These fields are integrated to visualize and finalize the proposed development, in simulation environment. SCADA (supervisory control and data acquisition) systems and distributed control systems (DCSs) are widely deployed in all over the world, which are designed to control the industrial infrastructures, in real ways. To supervise and control the various parts of designed systems; trends to require a deep knowledge to understand the overall functional needs of industries, which could be a big challenge. Industrial field devices (or network sensors) are usually distributed in many locations and are controlled from centralized site (or main control center); the communication provides various signs of security issues. To handle these issues, the research contribution will twofold: a method using cryptography is deployed in critical systems for security purposes and overall transmission is controlled from main controller site. At controller site, multimedia components are employed to control the overall transmission graphically, such as system communication, bytes flows, security embedded parameters and others, by the means of multimedia technology.

• 패션비즈니스
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• 제17권6호
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• pp.98-110
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• 2013

This research is to study the functional color arrangement of work clothes based on the color chroma value arrangement, which could affect the safety of workers at the site of the mechanical industry. For the study, 5PB hue, indicating a high satisfaction level with proper colors at the site of the mechanical industry, were selected from previous research for 6 types of CAD simulation on a 2-color chroma value arrangement. To analyze the color data of each color arrangement after applying the color chroma value arrangement as well as to figure out the level of recognition on the color arrangement, an analytical result, which was based on the NCS color system, was evaluated. Furthermore, the survey study on items regarding the safety of the relevant work site for the simulated result was executed. As a result of the evaluation, the color arrangements which include high color chroma value indicated a high satisfactory level in all items under the visibility criteria for the safety of workers, propriety as a color arrangement of work clothes, and safety from the perspective of work site management. In particular, the color arrangement mixture between high color chroma obtained the highest satisfactory evaluation, indicating that the color arrangement of high color chroma is essential in the color arrangement of work clothes for the establishment of safety by adjusting the color chroma value. Yet, in order to figure out the independent function of the color chroma value, other factors are restricted in this study. Thus, it is not proper to apply the result of this study only at the actual work site. Therefore, a follow-up research centered on the tones of all three types is proposed, from which we can expect, a suggestion of the applicable color guideline for the industrial site.

• 환경영향평가
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• 제6권2호
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• pp.123-135
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• 1997

The solid waste incineration facilities which cause environmental pollution. And those are some kind of loathing facilities for residents who do not want it. This problem could be solved by location feasibility study. The purpose of location feasibility study was to determine one site out of three candidate sites. This study which was done by the law, environmental and economic factor was considered for optimum site selection. Comparative evaluation among the candidate sites was done by ordinal scale and thus the optimum site was selected.

• Journal of Microbiology and Biotechnology
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• 제17권8호
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• pp.1249-1253
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• 2007

A hyperthermostable endoglucanase from Pyrococcus horikoshii with the capability of hydrolyzing crystalline cellulose was analyzed. A protein engineering study was carried out to obtain a reduced-size mutant. Five amino acid residues at both the N- and C-terminus were found to be removable without any loss of activity or thermal stability. Site-directed mutagenesis was also performed on R102, N200, E201, H297, Y299, E342, and W377, residues possibly involved in the active center or in the recognition and binding of a cellulose substrate. The activity of the resulting mutants was considerably decreased, confirming that the mutated residues were all important for activity. A reduced-size enzyme, as active as the wild-type endoglucanase, was successfully obtained, plus the residues critical for its activity and specificity were confirmed. Consequently, an engineered enzyme with a reduced size was obtained, and the amino acids essential for activity were confirmed by site-directed mutagenesis and comparison with a known three-dimensional structure.