• Journal of Microbiology and Biotechnology
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• v.25 no.2
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• pp.185-195
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• 2015

Glucoamylase is an important industrial enzyme. Glucoamylase production by industrial Aspergillus niger strain featured with two major problems: (i) empirical substrate feeding methods deteriorating the fermentation performance; and (ii) the high raw materials cost limiting the economics of the glucoamylase product with delegated specification. In this study, we first proposed a novel three-stage varied-rate substrate feeding strategy for efficient glucoamylase production in a 5 L bioreactor using the standard feeding medium, by comparing the changing patterns of the important physiological parameters such as DO, OUR, RQ, etc., when using different substrate feeding strategies. With this strategy, the glucoamylase activity and productivity reached higher levels of 11,000 U/ml and 84.6 U/ml/h, respectively. The performance enhancement in this case was beneficial from the following results: DO and OUR could be controlled at the higher levels (30%, 43.83 mmol/l/h), while RQ was maintained at a stable/lower level of 0.60 simultaneously throughout the fed-batch phase. Based on this three-stage varied-rate substrate feeding strategy, we further evaluated the economics of using alternative carbon sources, attempting to reduce the raw materials cost. The results revealed that cornstarch hydrolysate could be considered as the best carbon source to replace the standard and expensive feeding medium. In this case, the production cost of the glucoamylase with delegated specification (5,000 U/ml) could be saved by more than 61% while the product quality be ensured simultaneously. The proposed strategy showed application potential in improving the economics of industrial glucoamylase production.

• Journal of Engineering Education Research
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• v.23 no.5
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• pp.68-75
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• 2020

In order to cultivate the talents acquired in the fourth industrial revolution, developed countries' government are actively engaged in the campaigns encouraging K-12 students to participate in the maker movement. Maker education is regarded as one possible solution based on high tech in the era of the 4th Industrial Revolution, and it is spreading widely along with STEM education. In South Korea, STEAM education was actively conducted nationwide, and since 2017, STEAM and maker education have been linked showing mutual development. However, compared to STEAM education linked to the curriculum, comparison and activity-based research on maker education for teenagers is still insufficient. Therefore, this study aimed to suggest implications for STEAM education and maker education by analyzing the motivation of Korean youth to participate in maker activities. The subjects of this study are high school students who participated in maker education programs in student community for the first time in Korea. In this study, students were classified into engineering-related career group and non-engineering-related career groups based on their career intentions, and the motivation and understanding of participation in maker activities were compared. As a result of the study, male students participated more in maker education community activities than female students, and the engineering-related career group had a higher intention to participate in games, outdoor activities, IT equipment, digital production, and electrical/electronic production activities than the non-engineering-related career group. In addition, in the fields of handicraft/art, home baking, installing, and horticultural agriculture, there was no difference in the intention of participate in the engineering-related career group and the non-engineering-related career group. It was found that the engineering-related career group believed that there was a strong relationship between the maker education community activity, career exploration and future career choice, while the non-engineering-related career group believed that the relationship is less strong. It was also found that the engineering-related career group was participating more actively in the maker activity than the other group.

• Journal of Industrial Convergence
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• v.12 no.2
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• pp.54-62
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• 2014

The significance of the research is to leverage on the policy makers and school education, and research in terms of human rights issues and for the improvement of multicultural education by seeking an effective training plan with the purpose of the present study it. The efforts to address human rights issues through real multicultural care center starts with the question of human rights education in multicultural education methodology that can protect the human rights of migrant workers, immigrant youth in a multicultural society such situation in Korea by. Accordingly we suggest that it is appropriate to human rights education in the moral multicultural care center for human rights education. Cant because the regular students on the basis of morality that respects the human rights of migrant workers, immigrant adolescents 'human rights' training done 'pursue human rights' migrant worker, immigrant youth in their own rights, as well as multicultural education is through morality The Seen to suggest ways through the development of multicultural education issues and the results of these studies.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.18 no.36
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• pp.349-363
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• 1995

The purpose of the study was to estimate and analyze the rates of return to educational investment. The study was designed to estimate the social and private rates of return to educational investment by school level and sex in order to measure education's economic value with a viewpoint of human capital theory. The produced result of this study are as follows. The social rates of return to education turned out to be male high school 7.94%, male junior college 3.74%, male university 8.50% female high school 4.30%, female junior college 10.11%, female university 6.92%. The private rates of return to education turned out to be male high school 8.41%, male junior college 3.39%, male university 8.38%, female high school 7.90%, female junior college 10.34%, female university 7.33%, In order to measure economic value of educational investment, rates of return to education were compared with those to physical capital investment. Social rates of return to education turned out to be profitable for female junior college, while for private rates of return to education turned out to be profitable in all school levels except for male junior college.

• International Journal of Computer Science & Network Security
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• v.22 no.7
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• pp.259-267
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• 2022

With the rapid development and introduction of digital technologies, both everyday human life and technological processes of any production are changing, which stimulates the transformation of the economy and education. Digital technologies are not only a tool, but also a living environment of modern human, which opens up new opportunities: learning at any convenient time, continuing education, the ability to form individual educational learning trajectories and more. However, the digital environment requires teachers to take a modern approach to the organization of the educational process, the formation of new skills and abilities to work in the digital educational environment. As a result of the study, it was found that the system of vocational education should provide training for masters of industrial training who have a high level of digital competence. The purpose of the article is to single out, theoretically substantiate and determine the level of formation of structural components of digital competence of future masters of agricultural training. The structure of digital competence of agricultural master was analyzed on the basis of domestic and foreign scientists researches. Systematized research results indicate that digital competence consists of four components: motivational-value (combination of internal and external motives for the use of digital technologies in future professional activities), cognitive (a set of theoretical knowledge, skills and abilities of future master of industrial training to effectively build educational process with the use of digital technologies), activity-professional (expansion and deepening of knowledge, skills, necessary skills for effective implementation of digital technologies in the educational process) and evaluative-reflexive (ability to analyze and self-analyze own activities and its results taking into account professional characteristics, self-realization in professional activities through the use of digital technologies). These components are comparable with the indicators that describe the knowledge, skills and abilities needed by the future master of industrial training to organize the modern educational process. A questionnaire was conducted to determine the levels of this competence formation, which allows us to conclude that it is necessary to increase the level of formation of all components of digital competence of future masters of industrial training in agriculture. The results of the study can be used as a basis for the development of disciplines that form the special competencies of masters of industrial training in agriculture and programs of advanced training of teachers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.3
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• pp.1084-1090
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• 2012

The objectives of this study were to investigate needs and determine the priority of needs of women immigrants on life-long education. The subjects of the study were 121 women immigrants who participated in life-long education programs before. Borich priority determination formula and Locus for Focus Model were used for the determination of the priority of needs. The result indicated that the priority of needs were in order of education for employment, education for child rearing, and education for pregnancy, delivery and health life. The suggestions for program development of women immigrants are discussed.

• Journal of Fisheries and Marine Sciences Education
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• v.10 no.2
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• pp.115-128
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• 1998

Fisheries and merchant marine high school education is the core for human resources of fisheries and merchant marine industries. In the past, fisheries and merchant marine high school education was terminal education producing skilled worker in water area. But fisheries and merchant marine high school education are rater desired on educational role of helping student go on to college and to have continuing education after graduate high school. In this regard, the central purpose of this study was direction of basic composition on the 7th revised curriculum for the fisheries and merchant marine high school. The specific objectives were follow contents, this study present importance for 7th revised curriculum, and comparative analysis by the change of direction of basic composition from 1st revised curriculum to 7th revised curriculum. Also, this study present direction of basic composition on the curriculum in accordance with a change and demand of industrial society. The objective on the 7th revised curriculum for fisheries and merchant high schools is to teach students basic knowledge and skills related to fisheries and merchant marine industries, and self-reliant attitude so that students can get to the successful career roles in the rapidly changing industrial society.

• Proceedings of the Korea Society of Design Studies Conference
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• 2005.10a
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• pp.208-209
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• 2005

• Journal of Industrial Convergence
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• v.18 no.5
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• pp.102-107
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• 2020

The purpose of this study is conduct development and assessment of the on-site customized education program in college curriculum with utilizing Living Lab. The development process is conducted in Living Lab's mechanism ; idea expression, setting agenda, actual activities, and feedback. The developed early education program is constructed four subjects, sixteen sub themes, and fifty three activities. For the assessment of the program, the satisfaction survey was conducted to sixty eight teachers who work for early education institutes in Busan, S. Korea. In the result, more than 80% of respondents answered that the program was satisfying. The study is meaningful as a basic data to utilize Living Lab in various subjects and majors in college.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.7
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• pp.3247-3252
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• 2013

The convergence of ICT and cloud computing is treated as a main issue all over the fields including education. This development leads to change from e-learning to u-learning and smart education. Therefore, we need to study in term of the systematic and a long-term viewpoint how smart education environment have an influence on the practical space. And we need a concrete study for smart education space based on property of space. Under these critical mind, this study understands the smart education space in terms of the convergence of computing space and physical space. As a Result, smart education space have major property such as flexibility, communication, polyvalence.