• Transactions of the Korean hydrogen and new energy society
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• v.11 no.4
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• pp.149-159
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• 2000

This paper is concerned with the performence of a steam reformer for 25kW class MCFC, which is compared with the theoretically calculated results at various operating conditions. The theoretical $H_2$ production amount and $CH_4$ conversion rate are calculated with variations of temperature and steam/carbon (S/C) ratio using fortran program, and the actual values are measured from flowmeter and gas chromatography. As a result of the comparison of theoretical and actual values, the theoretical $H_2$ production amount is calculated by $24.4m^3/hr$ at the normal operating condition(LNG $9m^3/hr$, S/C ratio 5, absolute pressure $2.77kg/cm^2$, $610^{\circ}C$), but the actual production amount is only $19.4m^3/hr$, which is 79.5% of the theoretical value. Nevertheless, at the normal operating condition, the reformer for 25kW class MCFC performed well for a 2,100 hr long run operation, constantly producing $H_2$.

• Journal of the Korean Society of Safety
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• v.39 no.2
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• pp.22-27
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• 2024

The purpose of this study is to explore the trend in insulation resistance values according to temperature and overcurrent by conducting an investigation on the actual condition and experiments on the electrical wiring during the melting furnace process. In addition, the Arrhenius equation is used to determine whether temperatures in the furnace operating process can be applied to the actual field. In the investigation of the actual condition, the insulation resistance started to decrease seven years after replacement, even though cables in oil pump A were replaced in 2010. Both the experimental and theoretical values of the insulation resistance obtained using the Arrhenius equation decreased with an increase in temperature. Errors in insulation resistance (MΩ) values between tests and the Arrhenius equation ranged from ±2 to ±10, demonstrating a high similarity. Results revealed that when the insulation resistance cannot be measured in a manufacturing workplace (quarterly analysis), it can be estimated by partially applying the Arrhenius equation.

• Journal of Digital Convergence
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• v.19 no.8
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• pp.49-57
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• 2021

This paper aims to confirm the effect of self-control and organization-control on information security attitude. The research method is composed of a cross-design of locus of control and tightness culture. The measurement variables used in the assessment are information security actual attitude, compliace behavioral attitude, and information security efficacy. As a result, the locus of control had a significant effect on information security actual attitude, information security efficacy, information security efficacy, and it was found that influence of the internal-based condition was greater than the external-based condition. The tightness culture had a significant effect on compliace behavioral attitude, information security efficacy, and it was found that influence of the tight culture-based condition was greater than the loose culture-based condition. In addition, the discussion contatins the implications of information security direction that reflect these research results.

• Journal of Nutrition and Health
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• v.20 no.5
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• pp.367-382
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• 1987

The purpose of this study was to achieve a desriable nutritional condition and eating habit of Korean through nutritional counseling. For this purpose, the survey of actual nutritional condition of young woman was carried out and the results were being applied to the nutritional status assessment program and the menu planning program which were being developed on this study. Computerized programs developed for this study were as follows ; 1) Program for the assessment of nutrition status was made by the analysis of general status, obesity measure, eating habits, athletic status, activity expenditure energy, distribution and nutrients of food intake.

• Korean Journal of Environment and Ecology
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• v.19 no.4
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• pp.358-366
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• 2005

This study was carried out through the analysis of the actual vegetation types and characteristics in Baengma Urban Natural Park, Incheon to accumulate basic data for the forest vegetation management. The actual vegetation was classified into 39 types. Area of Robinia pseudoa-cacia forest was the widest($34.0\%$) in the afforested vegetation types, while Quercus monglica forest occupied the widest area($12.1\%$) in the natural vegetation types. The map of actual vegetation characteristics was drawn on the basis of stratum structure, plant development tendency and environmental condition of the actual vegetation types. We reclassified it into 16 types and proposed the management plan.

• The monthly packaging world
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• s.288
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• pp.90-96
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• 2017

베트남에서 포장산업은 식량 안보 확보, 인구의 70%에 일자리와 소득을 만들어주는 데에 중요한 역할을 했다. 또한 국가의 경제 발전, 빈곤 감소와 정치 사회 안정에 기여한 바가 크다. 베트남 농산물의 부가가치 증가에 결정적 역할을 하고 있는 베트남 포장산업, 그 중에서도 유리, 플라스틱, 금속 포장산업의 최신 동향을 3회에 걸쳐 살펴보도록 한다. 첫 번째로 베트남 유리포장산업에 대해 알아본다.

• Proceedings of the Korea Contents Association Conference
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• 2017.05a
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• pp.171-172
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• 2017

경찰관의 자살은 수차례 언론에 보도된 바와 같이 점차 증가하는 추세이며, 일반 공무원과 비교할 때 1.7배 높은 수준이다. 이 연구에서는 그 동안 경찰청에서 공개해 온 자료를 수집하여 우리나라 경찰관의 자살 실태를 파악하고 이에 대한 함의에 관하여 분석하고자 하였다.

• Journal of the Korean Society of Safety
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• v.20 no.1 s.69
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• pp.113-118
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• 2005

This study delivers the actual condition of investment for industrial accident prevention based on survey of 500 construction sites from 'reports far industry safety and health' published by Korea Occupational Safety & Health Agency (KOSHA). The various research techniques were used such as technical statistic analysis for construction industry, cost comparison of industrial accident prevention and accident loss. A formula was deduced to calculate accident loss and accident frequency by accident prevention cost through regression analysis.

• Journal of the Korea Safety Management & Science
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• v.7 no.5
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• pp.19-30
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• 2005

This study delivers the actual condition of investment for industrial accident prevention based on survey of 526 construction sites. The various research techniques were used such as technical statistic analysis for construction industry, construction and civil engineering works, cost comparison of industrial accident prevention and accident loss. A formula was deduced to calculate accident loss and accident frequency by accident prevention cost through regression analysis.

• Journal of the Korea Safety Management & Science
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• v.4 no.3
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• pp.1-11
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• 2002

It has been Management for stabilize Enterprise-Management for Economic demand for to Productivity, Automation, customer satisfaction, Especially Semiconductor-Industry has been, potential-risk in working to factory to machine equipment, all kinds of utility, gas, chemical, electronic, Fire. This study of basic-purpose has Research Different From as Follow to analysis and Solution For semiconductor product Factory of a actual point Data and specific-gravity to Relation for company-Injury. 1. It has been try to Injury-Tendency and cause-Analysis for our County-Manufacture-Occupation. 2, Semiconductor Injury of Actual-condition in Enforcement for problem and Analysis that Injury Problem has occupated it Submitted to Solution for ordinary Injury theory View to point Solve at for New Model has applicated to that nilem for processed to Solution.