• Journal of Information Technology Applications and Management
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• v.27 no.1
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• pp.75-95
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• 2020

Smart Factory is the decisive factor of the Fourth Industrial Revolution and is a key field for national competitiveness. Until now, most smart factory research has focused on policy and technology. In order to spread more technology, it is necessary to study what factors influence the adoption of smart factory technology in the enterprise. Nevertheless, little research has been done. In this study, based on the UTAUT (Unified Theory of Acceptance and Use of Technology), which has been proved through many years of research, I have studied the factors that influence the acceptance of smart factory technology. As a result of research, performance expectancy, social influence, and facilitating conditions of UTAUT model had a positive(+) effect on behavior intention. Their relationship of influence was in the order of performance expectancy (β = .459)> facilitating conditions (β = .212)> social influence (β = .210). However, it was found that the effort expectancy did not affect the behavior intention, and the impact of the newly perceived risk on the behavior intention to use was not confirmed. The main reason is that the acceptance of smart factory technology is not a matter of personal interest but a matter of organizational choice. Trust, on the other hand, was found to be partially mediated between performance expectancy, facilitating conditions, social influence and behavior intention. For many years, many researchers have validated the UTAUT, which has been validated through various empirical studies. It is academically meaningful to begin the study of factors affecting the acceptance of smart factory technology in terms of the UTAUT. In practice, it is necessary to provide SME employees with more information related to the introduction of smart factories, to provide advanced services related to the establishment of smart factories, and to establish a standardized model for each industry.

• Convergence Security Journal
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• v.16 no.7
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• pp.173-180
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• 2016

There has been a growing interest in automation of factories in the country. And, the development in this regard has been actively attempted. In particular, on the basis of the "innovation 3.0 strategy of manufacturing industry", interest in the smart of the manufacturing plant of small and medium-sized enterprises has increased rapidly. As well as policy for building smart plant, technical, seeking a strategic approach. But, in order to introduce such a smart plant or factory automation systems, manufacturing plant security with vulnerability and personal information protection problems, it should always be top priority there. Accordingly, we provide the applicable lightweight secure protocols in RFID communication. It is a wireless communication technology that is most often introduced for factory automation. Our proposed lightweight secure protocol in this study, less the number of calculations in comparison with the existing public key-based and the symmetric key encryption algorithm. And it is fast in compare with the existing protocol. Furthermore, we design that it system can support to low power consumption and small consume the memory size.

• Korean Journal of Applied Biomechanics
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• v.30 no.3
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• pp.197-204
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• 2020

Objective: The purpose of this study was to investigate the effect of increased running speed on the magnitude of impact shock attenuation in high frequency (9~20 Hz) at support phase on the treadmill running. Method: Twenty-four healthy male heel-toe runners participated in this study. Average age, height, mass, and preference running speed were 23.43±3.78 years, 176.44±3.38 cm, 71.05±9.04 kg, and 3.0±0.5 m/s, respectively. Three triaxial accelerometer (Noraxon, USA) were mounted to the tuberosity of tibia, PSIS (postero-superior iliac spine), and forehead to collect acceleration signals, respectively. Accelerations were collected for 20 strides at 1,000 Hz during treadmill (Bertec, USA) running at speed of 2.5, 3.0, 3.5, and 4.0 m/s. Power Spectrum Density (PSD) of three acceleration signals was calculated to use in transfer function describing the gain and attenuation of impact shock between the tibia and PSIS, and forehead. One-way ANOVA were performed to compare magnitude of shock attenuation between and within running speeds. The alpha level for all statistical tests was .05. Results: No significant differences resulted for magnitude of the vertical and resultant impact shock attenuation between the tibia and PSIS, and forehead between running speeds. However, significant differences within running speed were found in magnitude of the vertical shock attenuation between tibia and PSIS, tibia and forehead at speed of 2.5, 3.0 m/s, respectively. Conclusion: In conclusion, it might be conjectured that muscles covering the knee and ankle joints and shoe's heel pad need to strengthen to keep the lower extremities from injuries by impact shock at relatively fast running speed that faster than preferred running speed.

• The Journal of the Korea Contents Association
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• v.10 no.5
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• pp.303-313
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• 2010

The purpose of this study is to evaluate the performance efficiency and productivity change of the regional public hospital in Korea. We use DEA(Data Envelopment Analysis) for CCR, BCC model, and MPI(Malmquist Productivity Index). DEA is a useful nonparametric technique for measurement of efficiency of a DMU(Decision Making Unit) and MPI is a evaluation method to measure DMU's productivity change. We utilize 34 regional public hospital's time-series data over 6 years from 2003 to 2008.The results of this study were as follows. First, technical efficiency(TE) shows that approximately 3.6% of inefficiency exists on the regional public hospitals and it reveals that the cause for technical inefficiency is due to scale inefficiency. Second, MPI's results show that regional public hospital made effort to improve total factor productivity change to raise technical efficiency. In order to raise efficiency, the regional public hospitals should deploy internal innovation and the government should support welfare policies.

• Journal of Engineering Education Research
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• v.7 no.1
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• pp.87-96
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• 2004

The number of schools that implement English medium instruction (EMI) to improve students' English proficiency has been increasing. Despite the increasing popularity of EMI, little attention has been paid to evaluating the effectiveness of EMI and its impact on students and instructors. This study explores these issues, focused on the case of the College of Engineering at Y University. A survey questionnaire was administered to 19 engineering professors who offered EMI courses in the Fall of 2003. The survey results show that: 1) the professors perceive that students' low English proficiency is a large obstacle to successful implementation of EMI, and that pre-EMI language courses are needed to prepare students for EMI. 2)Though the professors expressed confidence in their English proficiency, they indicated that they felt quite a lot stressed at teaching EMI courses; hence, support of the school administration is needed to help faculty offering EMI courses. 3)To improve students' English proficiency, native-speaking language instructors are needed to provide feedback on students' written and spoken English.

• Journal of Digital Convergence
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• v.9 no.3
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• pp.105-116
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• 2011

The innovation is an important element controlling national economic growth and the competitive power reinforcement of the company. The developed nations concentrate interest on upbringing and investment in knowledge intensive industry and advanced technology base industry for national competitive power reinforcement. I support in particular it as Korean representative industry in the case of the advanced technology base industry positively in the government. Though a patent can become the important competition predominance element of the company by such an advanced technology base industry, this and the proof study in the country to be concerned with are the facts that are not enough now. As for the article of the book, what kind of difference there is in importance by IT and BT industry distinction comment on current events value factors of the patent valuation; of the study is aimed. I derived an importance factor among factors shown in the valuation model of the patent valuation organization and an existing precedent study for comparison analysis in the study and used it. In addition, it was analysis hello it utilized AHP technique, and what kind of difference patent value evaluation important factors showed by IT and BT industry distinction. Analysis, Because patent value evaluation important factors showed a difference by industrial distinction, I appeared.

• Management & Information Systems Review
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• v.30 no.4
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• pp.511-537
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• 2011

The start-up program of service company is able to give the positive effect to the job creation and growth but actually the rate of success for start-up program in service industry low and thus the effective support program is required. Recently, it is required that entrepreneurial spirit for success of start-up program in service industry. We examined entrepreneurial spirit between participation motivation in service industry. The results are as follows. As a result of survey for education program participant, it was found that 4 causes of Entrepreneurial Spirit such as innovation thought, market-oriented thought and art-oriented thought, management thought are all significant and especially, the effect of management thought showed somewhat high level in entrepreneurial spirit. Hereafter, this study may help to guide the motivation of preliminary entrepreneurs as food & beverage, restaurant business, retailer, other service industry.

• The Journal of Information Technology
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• v.7 no.1
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• pp.87-104
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• 2004

This study is to understand basic knowledge on e-logistics through the analysis of third party logistics(3PL) as well as fourth party logistics(4PL) and to suggest some activation plans of e-logistics of information era to get competition in the field of international logistics. Compared with advanced countries, Korean companies has not activated 3PL logistics as Korean companies are not inclined to open their business information to others and they didn't recognize the importance of logistics. As the business environments are worsening little by little, there has been greater concerns for e-logistics as a way of focusing on the core-business. Most of Korean companies has outsourced simple and limited scope of 3PL and 4PL services with 1st level of logistics outsourcing. To activate e-logistics, Korean government and private enterprises have to pursue the following strategies. First, Korean government should change the present laws preventing the enterprises specialized in 3PL from doing business and should pursue logistics information and standardization. Also the government needs to support 3PL companies. Second, private companies do their best to retain and develope factors of logistics resources professional and to develope the latest technology. 3PL providers have pursue effective logistics strategies and to invest capitals for the information technology.

• Journal of Korean Society of Archives and Records Management
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• v.22 no.1
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• pp.1-25
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• 2022

This study aims to identify the current situation and core competencies of records managers and archivists through an in-depth interpretation of the perception and its meaning behind their experiences and, based on them, to seek the educational service directions of professional organizations. As a result of qualitative data analysis using interpretive phenomenological research method, this study identified three categories of field needs, core competencies, and educational service directions, as well as 10 super-topics, 30 sub-topics, and 82 semantic units. Based on this, this study has suggested the educational service directions of professional organizations, such as the provision of opportunities to secure external driving forces for work innovation, the provision of learning opportunities for communication and public discussion among institutions, and the provision of new partnerships and practical learning opportunities. This study is meaningful in having derived the main educational service directions that professional organizations should focus on and support by identifying the current situation and core competencies of records managers and archivists.

• ALGAE
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• v.37 no.2
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• pp.105-121
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• 2022

Modern seaweed farming relies heavily on seedlings from natural beds or vegetative cuttings from previous harvests. However, this farming method has some disadvantages, such as physiological variation in the seed stock and decreased genetic variability, which reduces the growth rate, carrageenan yield, and gel strength of the seaweeds. A new method of seedling production that is sustainable, scalable, and produces a large number of high-quality plantlets is needed to support the seaweed farming industry. Recent use of tissue culture and micropropagation techniques in eucheumatoid seaweed production has yielded promising results in increasing seed supply and growing uniform seedlings in large numbers in a shorter time. Several seaweed species have been successfully cultured and regenerated into new plantlets in laboratories using direct regeneration, callus culture, and protoplast culture. The use of biostimulants and plant growth regulators in culture media increases the seedling quality even further. Seedlings produced by micropropagation grew faster and had better biochemical properties than conventionally cultivated seedlings. Before being transferred to a land-based grow-out system or ocean nets for farming, tissue-cultured seedlings were recommended to undergo an acclimatization process to increase their survival rate. Regular monitoring is needed to prevent disease and pest infestations and grazing by herbivorous fish and turtles during the farming process. The current review discusses recent techniques for producing eucheumatoid and other valuable seaweed farming materials, emphasizing the efficiency of micropropagation and the transition from laboratory culture to cultivation in land-based or open-sea grow-out systems to elucidate optimal conditions for sustainable seaweed production.