• Journal of the East Asian Society of Dietary Life
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• v.20 no.6
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• pp.863-872
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• 2010

The overall effects of three different beers on white bread were examined in terms of mixograph, pH, fermentation rate, TPA, crumbScan, colorimeter, sensory evaluation, and the hardness of bread through different storage times (0, 1, 2, 3 days), and texture as measured by texture analyzer. According to mixograph, the control (CON), black beer stout (BOB) and Asahi beer (AOB) but not max beer (MOB) were found to be proper between 3 and 5 minutes of peak time. All samples for peak value were at the level of over 60%. AOB showed the highest specific volume, and was the lowest in hardness (i.e. highest in softness) by TPA and storage days. In sensory evaluation, the difference test showed that AOB had the best volume, springiness, moistness, and softness. Moreover, in an overall preference test AOB scored the highest points in texture, flavor, taste, and overall acceptance.

• Proceedings of the Korean Geotechical Society Conference
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• 2009.09a
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• pp.651-659
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• 2009

There are a great number of man-made and natural slopes in many parts of the world including Hong Kong and Mainland China. For example, there are over 40,000 slopes in Hong Kong registered by the Hong Kong Government. Landslides due to slope failures can often cause catastrophes that involve the loss of both lives and important facilities. GPS has been demonstrated to have great potentials for use in monitoring slope stability and landslides. However, the high hardware cost of GPS has limited the wide spread use of GPS for such applications. The multi-antenna GPS technology initiated by the research group and our collaborators has significantly reduced the cost of GPS and provided a solution to a number of associated problems such as data management and power supply. This paper discusses practical applications of multi-antenna GPS technology in slope monitoring, including system design, setting up, data transmission and management, and data quality analysis and control. Some slope monitoring examples are given to illustrate the points discussed.

• Journal of the Korea Safety Management & Science
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• v.13 no.3
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• pp.1-8
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• 2011

The overall goal of a safety based railroad system is either to eliminate hazards in designing or to minimize the possibility of it. In order to indicate system safety or low risk although it may not be possible to achieve zero risk conditions, first, it shall ensure that any disasters would occur due to system operation because the prescribed specifications are properly fulfilled and there are no failures of any kind. Second, the risk of faults or failures leading to a mishap must be eliminated or minimized by using fault-tolerance or fail-safe procedures. This paper will attempt to summarize the personal and social risk criterion at widely scattered points, presently used as a safety approach in all over EU, in order to establish the step by step procedures of the detailed standard for railway facilities. In addition, we present the new safety analysis method using the SIL-based evaluation standard and the Reachability Graph of the Petri Net.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.3
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• pp.65-74
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• 2012

A barcode is a representative means of cognition. It is either printed on the package of a product or attached to it as a sticker. It is used for the fast cognition of a product at a store. It is considerably cheap to make a barcode. Also, it is possible to read it fast by using a barcode reader. Because of such convenience provided by the barcode, a new system using the barcode as a means of settling payments like a currency or a credit card has been developed. However, due to its characteristics, it is easy to reduplicate, forge or falsify a barcode easily. Therefore, this study focuses on the case of applying the system using barcodes as a means of settling payments without providing solutions for the potential weaknesses. Also, this study suggests various points to consider regarding the creation of safe barcodes as one of the related measures, while providing various methods using additional means of certification other than the one of using barcodes in addition to the way of applying complexity with barcode numbers. Throughout this study, it will be possible to safely establish and operate the payment-settlement system using barcodes.

• Journal of the Korean Society of Safety
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• v.23 no.6
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• pp.158-163
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• 2008

Although prior researches have been investigated the impact of insured cost(direct cost) on employers and employees, little work has attempted to categorize the items of unsecured cost(indirect cost) by accidents. On this basis, the goal of this study was to achieve a better understanding of the nature of accident cost of unsecured cost. Specifically, this study aimed to categorize the unsecured cost items according to the domestic industry circumstances and use these results for a basis of other accident cost related studies. The results of this study are as follows: (1) accident development steps were categorized as twelve items for improved management according to each step of accident development (2) the points of occurrence and termination of the unsecured cost were identified for the improved management according to each step of accident development and (3) characteristics of each item in unsecured cost were studied and identified for a better control of accident costs. These results provide a basis for further researches on the unsecured cost.

• Journal of the Korean Society of Food Culture
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• v.15 no.2
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• pp.123-137
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• 2000

Korea market of food service industry has been increased greatly since early 90's with the emergence of professional catering business and the expansion of school food service. Because of the characteristics of food service establishment, feeding many people at a time, there is always a high potential of foodborne outbreak which requires special sanitary management to prevent. Currently, many catering businesses are interested in HACCP(Hazard Analysis Critical Control Points), a new sanitary management system, and are trying to develop HACCP Plans for their food service establishment. Microbiological hazard analysis, a most important step for developing HACCP Plan, provides also basic information for evaluating sanitary aspect of prepared foods and their materials. There are not extensive data of microbiological hazard analysis for food service operations, especially for prepared foods and raw materials, which are helpful for developing a HACCP Plan. The extensive microbiological hazard analyses for 65 prepared foods and 51 raw materials selected from a couple of food service establishment were performed in this research. These results will provide useful information to determine hazards for developing a HACCP plan, and also to understand sanitary status for prepared foods and raw materials in food service establishment.

• Journal of Environmental Science International
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• v.25 no.9
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• pp.1253-1267
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• 2016

After large-scale flooding damage occurred along the Imjin river in 1996, 1998, and 1999, the Hantan river flood control dam was planned, and it has since been under construction. Unlike existing dams in Korea, the Hantan river flood control dam will remain fully open except during high floods, when the dam will store flood water temporarily to reduce flood peaks and flood water volume downstream. During past flooding seasons, floating debris has caused difficulties in the management of large-scale dams. Most of the existing multipurpose dams in Korea have installed nets to collect floating debris based on many years of experience with and data about inflow and distribution of floating debris in the dams. For the Hantan river flood control dam, however, collection of data about inflow and distribution of floating debris is not possible as the dam is located near the border area between North and South Korea. In order to devise a preliminary plan to collect floating debris in the Hantan river flood control dam, an EFDC hydrodynamic model was used to analyze the behavior of floating debris during high floods. The Lagrangian particle tracking method was utilized to simulate the behavior of floating debris in the dam. Based on the analysis of paths and final destinations of the particles, seven collection points were selected where it seemed to be effective to collect floating debris, as debris is likely to accumulate there in high density.

• Journal of Digital Convergence
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• v.14 no.2
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• pp.415-426
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• 2016

The purpose of this study is to explore the effects of ACT on smartphone addiction level, self-control, and anxiety of college students with smartphone addiction. 320 college students who lived in Chonbuk completed SAPS-A. 42 students who gained more than 40 points score by SAPS-A completed SCRS, STAI, and AAQ-16 as pre-treatment. Final 18 participants were randomly assigned to 9 in the ACT group and 9 in control group. ACT program was administered for 8 sessions, follow-up study was conducted at the end of treatment and at 4 weeks follow-up periods. The results of this study were as follows: Smartphone addiction and anxiety levels of ACT group were significantly reduced and maintained until the follow-up. Self-control and Acceptance-action levels were significantly increased and maintained until the follow-up. It has been confirmed that ACT had an effect on smartphone addiction treatment, anxiety decrease and self-control ability improving, therefore, based on this result, further research will be needed to apply the ACT on smartphone addiction treatment in families, school, local community, etc.

• Journal of the Korea Institute of Building Construction
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• v.24 no.2
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• pp.239-248
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• 2024

The adjustment in guidelines for quality certification of recycled aggregate permitted the Quality Control Manager of a company specializing in recycled aggregate quality certification to concurrently assume the role of Environmental Management Manager. Analysis of the outcomes from the 2023 recycled aggregate quality certification follow-up management audit conducted by the certification agency revealed that in 95 out of 242 cases, constituting approximately 39% of the total cases, individuals held concurrent positions. Following the regulatory revision, there has been a notable proliferation of concurrent roles across various enterprises. Concerns arose regarding the potential neglect of quality control for certified recycled aggregates in comparison to scenarios where individuals are solely responsible for specific duties related to quality and environmental management. Audit results encompassing six aspects, including waste management, were evaluated on a scale of 6 points. A comparative analysis was conducted between the outcomes of 147 cases managed by dedicated personnel, as previously practiced, and 95 cases managed by individuals with concurrent roles. Although the average score of the latter group was marginally lower, no statistically significant disparity was observed between the two groups. Consequently, apprehensions regarding the oversight of quality control stemming from the allowance of concurrent roles appear unfounded. Within the context of recent regulatory revisions, permitting concurrent roles in managerial capacities is deemed an appropriate relaxation of regulations.

• Journal of Fisheries and Marine Sciences Education
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• v.27 no.6
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• pp.1646-1655
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• 2015

Korean government has issued the ratings standard for disease control of aquaculture farms according to the Aquatic Life Disease Control Act in 2008. There are five rating criteria within the enforcement regulations; period of disease free, performance of disinfection, environmental and hygienic management, keeping record of trade and sales, completion of education for disease control. There are no application has been applied on the basis of the rating criteria so far because detailed subcriteria and scoring indicators has not established for assessment process. In order to apply the ratings standard for disease control, we set up the subcriteria and new scoring for rating disease control level based on legal criteria in this study. This study was conducted on 90 targeted olive flounder farms in Jeju. The result of disease control level assessment on olive flounder aquaculture farms show the overall average of Jeju-do was 72.9 points and differed depending on the district; 74.7 in Jeju-si and 71.1 in Seogwipo-si, respectively. The Spearman correlation of each evaluation index show the disease control level score was correlated highly with the performance of disinfection(R=0.715, p<0.01), and environmental and hygienic management(R=0.661, p<0.01). The result of correlation analysis show that there is the highest correlation between the aquaculture farm status and the total mortality(R= -0.618, p<0.01). The reliability of the results are considered to be accurate in the Cronbach's alpha value of 0.727.