• Journal of Yeungnam Medical Science
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• v.19 no.1
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• pp.1-10
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• 2002

With the establishment of rapid sequence analysis of 16S rRNA and the recognition of its potential to determine the phylogenetic position of any prokaryotic organism, the role of 16S rRNA similarities in the present species definition in bacteriology need to be clarified. Comparative studies clearly reveal the limitations of the sequence analysis of this conserved gene and gene product in the determination of relationship at the pathogenic strain level for which DNA-DNA reassociation experiments still constitute the superior method. Since today the primary structure of 16S rRNA is easier to determine than hybridization between DNA strands, the strength of the sequence analysis is to recognize the level at which DNA pairing studies need to be performed, which certainly applies to similarities of 97% and higher.

• Journal of Korean society of Dental Hygiene
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• v.18 no.4
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• pp.441-453
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• 2018

Objectives: The purpose of this study was to contribute to the development of basic data for establishing and expanding the dental health centers in the future by examining the awareness of the dental health center establishment and the level of dental health knowledge in the school. Methods: A survey was conducted from April 2017 with 336 students over 10 years old in South Korea to investigate the awareness of the dental health center establishment in the school and their dental health knowledge level. The results were summarized as follows. Statistical analysis of the collected data was performed using the SPSS WIN 21.0 statistical program. Results: It was necessary to establish the dental health centers in the school with their establishment rate of 82.8%, and the reason for the establishment of the dental health center was the possibility of regular checkup with the highest at 43.6%. In the school, 62.8% answered no experience of dental health education with the highest rate. Dental health education in the school was answered to be necessary with 91.0% the most prevalent one. Factors affecting the recognition of the expected effect of establishing the dental health center in the school, it is expected that if the establishment of the oral health center is needed and the oral health education is needed in the school, And the perception of the effect is increased. Conclusions: 91% of the respondents considered that dental health education was necessary and 83% answered they needed dental hygiene. However, only 37.2% of the students experienced dental health education in the school. Therefore, it is necessary to expand the dental health center establishment, and to develop the foundation of life dental health care through regular dental examination and proper brushing education.

• Journal of Korea Society of Digital Industry and Information Management
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• v.18 no.2
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• pp.61-75
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• 2022

The purpose of this study is to analyze the impact of quality management system requirements, a management innovation technique, on business performance to secure the competitiveness of SMEs in an environment of increasing uncertainty in the global economy and intensifying competition. To this end, a survey was conducted on small and medium-sized enterprises (SMEs) operating a quality management system, and statistical analysis was performed through validity and reliability analysis, regression analysis, and group analysis using IBM SPSS 26.0. As a result of the study, it was found that planning, operation, support, and improvement, which are the core requirements of a quality management system, have a positive effect on business performance. In addition, through group analysis, it was found that the effect of quality management system requirements on business performance varies according to the level of the company. This means that the importance of quality management requirements required for strategy establishment varies according to the quality management introduction level of small and medium-sized manufacturers, and it can be used for small and medium-sized manufacturers to set strategic directions.

• Archives of design research
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• v.6 no.1
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• pp.11-22
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• 1993

The purpose of this study was to provide basic information for establishment of a desirable design promotion policy drive by research and analysis of recognition to design by consumers (including students) and designers and their level, merchandise evaluation evaluation and obstructing factors in revitalization of designs. To implement such purpose as referred to hereinabove, research was made by introduction of questionaires which were distributed to 500 persons of consumers group and 350 individuals of registered designers in Seoul, and for analysis of the data, density and percentage (%) were obtained by use of SAS Package and the dispersed analysis and correlationship were added for necessary parts. The result of study is summarized as follows; (l)The consumers remind the design as costume (21%) and molding (20%), and the designers remind it as creativity (27%) & molding (14%) respectively and the reminding of design by the two groups was indicated very simi lar. (p < 0.001) (2)As per the recogni tion of roles by the designers the research has highly indicated as contribution to improving living standards or development of economy & industry, and also indicated that it creates excessive consumption with sti$$\mu$ative manner. (3)The design reacts as an important parameter in selecting cri teria of merchandises and deciding factors for purchasing and also, in enhancement of competitive power of merchandise impact of design (2.36) was regarded very high. (4)The Korean-made home appliances in image is assessed as vulnerable than that of Japanese products, and the product designing level is also shown difference from advanced countries (1.36), but has indicated as somewhat better than those competitive nations (0.51) (5)The satisfaction to design policy of the Gov't is very low (1.69) and they recommended for new establishment of Policy undertaking department within the Gov't and indicated reasearch & development of design as the major issue. In regard to the above I'd like to emphasize the design industry $$\mu$t be dealt with the national level as a whole in order to promote thereof.

• Journal of Korean Society of Transportation
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• v.10 no.3
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• pp.59-74
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• 1992

The change of industrial structure, the expansion of economic scale, the elevation of national life level and rapid motorization bring about social problems that are traffic accident, traffic congestion, etc. Especially, big traffic accidents bring about the great number of dead and wounded person with damage of property. But there are no study results available mainly focused on the big traffic accident analysis. Accordingly, this study is essentially for the factor analysis of big accident types including laws violation and the assaulting driver's death using Quantification ll method.

• Korean Journal of Veterinary Service
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• v.24 no.2
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• pp.117-126
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• 2001

To ensure the safety of domestic livestock products, the government made it obligatory to enforce the hazard analysis critical control point(HACCP) in all domestic slaughterhouses. Under the HACCP, most of the hazards generated in slaughterhouses are bio-hazards, especially pathogenic bacteria. In order to reduce to the pathogenic bacteria, critical control point (CCP) is established and controled in the process of slaughter. A study was carried out to measure the level of bacterial contamination of swine carcass in 6 slaughterhouses selected. As a result, the aerobic plate counts(cfu/$\textrm{cm}^2$) of all samples was $10^2$-10 in average, except slaughterhouse C. The level of the aerobic plate counts on the surface of lower loin in slaughterhouse C was $10^4$ and it was considered that slaughterhouse C should set the process of manual transport of carcass as the CCP. Escherichia coli level was the highest in middle line cut surface. Especially, E coli level of slaughterhouses C and D were about 6.5- and 3.0-fold higher than that of other 4 slaughterhouses. Thus, it was considered that the slaughterhouses C and D should set the process of the entrails treatment as the CCP. The air contamination was measured at two point in a slaughterhouse. The air contamination level was 4-13 times higher than that of the standard Japanese slaughterhouses.

• Journal of Korea Port Economic Association
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• v.26 no.4
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• pp.101-121
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• 2010

Domestic trucking transportation market does not have only the poor business environment but also the serious defects on the transportation trading structure. It makes weaken the competitiveness of trucking industry and hinders the development of trucking industry. The problems of trucking industry such as the recession of the Korean economy and decrease of the trucking charge cause the truck drivers suffer. Korean government and national assembly try to change the law of truck transportation business. The suggested law includes the obligation of trucking information networking system and it can make the transportation business structures more efficiently. This article deals with the strategies for the establishment of trucking transportation networking system and examines the cost-benefit analysis assuming the four demand senario. The results suggest the establishment of the information system not based on the individual trucking industry but on the joint industry at the level of the local area. This article also suggests that the information system has a positive financial feasibility.

• Journal of Korean Society of Steel Construction
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• v.20 no.2
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• pp.259-268
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• 2008

This paper proposes a method to establish an optical lifetime maintenance strategy for deteriorating bridges in consideration of life-cycle performance and cost. A program is developed based on the proposed method, which can generate optimum maintenance scenarios not only at the individual member level but also at the system level of the bridge. By applying the developed program is studied through the comparative analysis of maintenance strategies generated at each level. According to the results of comparison between maintenance strategies of the member-level analysis and system-level analysis. It is expected that the establishment of a maintenance strategy through the bridge system-level analysis considering target, members reflects practical and reasonable results.

• Journal of the Korean Society of Safety
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• v.33 no.1
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• pp.66-72
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• 2018

This study analyses the types, related operations, facilities, and causes of chemical accidents in Korea based on the RISCAD classification taxonomy. In addition, human error analysis was carried out employing different human error classification criteria. Explosion and fire were major accident types, and nearly half of the accidents occurred during maintenance operation. In terms of related facility, storage devices and separators were the two most frequently involved ones. Results of the human error-based analysis showed that latent human errors in management level are involved in many accidents as well as active errors in the field level. Action errors related to unsafe behavior leads to accidents more often compared with the checking behavior. In particular, actions missed and inappropriate actions were major problems among the unsafe behaviors, which implicates that the compliance with the work procedure should be emphasized through education/training for the workers and the establishment of safety culture. According to the analysis of the causes of the human error, the frequency of skill-based mistakes leading to accidents were significantly lower than that of rule-based and knowledge based mistakes. However, there was limitation in the analysis of the root causes due to limited information in the accident investigation report. To solve this, it is suggested to adopt advanced accident investigation system including the establishment of independent organization and improvement in regulation.

• Fire Science and Engineering
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• v.24 no.2
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• pp.9-20
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• 2010

This study indicates direction on establishment of the operational plan for disaster mitigation and its implementation for maintaining business continuity of the local company of the first step, and seeks plans for maintaining their continuity through the establishment of early counter system constructed for achieving lasting safe at the any disaster. For achieving it, we investigated the standard of disaster management selected by the government called "Incident Preparedness and Operational Continuity Plan" Guideline, and investigated a guideline to be easily applied to domestic companies. And, we also studied on how to build the operational plan of disaster mitigation and apply IT techniques to A corporation. Especially, this study indicates the models of establishment of risk assessment, impact analysis, prevention and mitigation plan, response management plan for the establishment of plan among 5 main steps on "Incident Preparedness and Operational Continuity Management" Guideline. We devised the plan to activate the disaster mitigation activity throughout the country. It shows the skills to be prepared to upgrade the level of disaster response in this study.