• Korean Journal of Medicinal Crop Science
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• v.25 no.3
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• pp.146-151
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• 2017

Background: Rehmannia glutinosa is a perennial herb belonging to the family Scrophulariaceae. Its roots have been utilized as a traditional medicine. The aim of this study was to elucidate the basic information of the roots of the R. glutinosa cultivars and their utilization. Methods and Results: The roots of R. glutinosa cultivars were harvested in the end of March. The two iridoid glycosides, aucubin and catalpol, were analyzed by liquid chromatography/mass spectrometry (LC/MS), whereas ${\gamma}-aminobutyric$ acid (GABA) was analyzed by gas chromatography/mass spectrometry (GC/MS). The aucubin content was the highest in the Dakang cultivar, whereas no aucubin was detected in the five cultivars. All cultivars had more than 12 mg/g catalpol content, and the maximum catalpol content was found in Jihwang 1. The GABA content was the highest in Suwon 1, and it was 40 times more than that in the Yeongang cultivar. Conclusions: The highest aucubin, catapol and GABA contents were detected in the Dakang, Jihwang 1, and Suwon 1, cultivars respectively. This study provides the crucial information regarding the versatile utilization and pedigree selection of R. glutinosa cultivars.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.2
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• pp.188-198
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• 2021

Digital data was collected using modern three-dimensional digital technology. Current content-specific technologies were investigated through domestic and foreign cases so that three-dimensional digital technology could be applied to the utilization of various contents. First, the use of three-dimensional digital technology of architectural cultural assets has been changing from the restoration of cultural assets. Second, some of the contents produced were found to be underutilized. Third, the type of content has been changing in experience and exhibition, but the online approach was small. Fourth, digital restoration using domestic IT technology has been used as a technology to restore overseas cultural heritage. The fifth analysis of the relationship between the content types and 3D digital technologies shows the use of currently limited technologies. This study analyzed the status of digital architecture and the application of three-dimensional digital technologies to lay the foundation for the active development and utilization of content. Subsequent studies on various layers and digital technologies will be needed to revitalize digital architectural cultural assets in the future.

• Journal of Korean Clinical Nursing Research
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• v.18 no.1
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• pp.159-170
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• 2012

Purpose: This study was designed to examine the validity of the evidence-based guideline on pain developed by Registered Nurses Association of Ontario(RNAO) translated into Korean based on the experts' opinions. Methods: The panel consisted of experts of 60 registered nurses in surgical units, medical doctors and nursing managers who were experts in pain assessment and management. The validity of translated RNAO guideline was evaluated in terms of appropriateness, applicability, and utilization in current practice. Appropriateness and applicability of each recommendation were measured with 9 point scale, whereas utilization was measured by yes/no question. Data were analyzed by mean, standard deviation, and percent. The experts' opinions were analyzed by content analysis method. Results: In general, most of the recommendations in the guideline received above 7 point in appropriateness and applicability. However, above 20% of recommendations showed less than 50% of utilization rates in current practice. Conclusion: The reasons for low utilization of recommendations in current practice are in need for investigation. This study can be used for the development of guideline more acceptable in Korean health care settings and improve the quality of care for the abdominal surgery patients suffering from pain in Korea.

• Korea Science and Art Forum
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• v.19
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• pp.623-633
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• 2015

Use of technology through utilization of ICT (Information Communication Technology) in field study area is rapidly increasing. Thus, when applying ICT to experiential education, apart from experiential education contents in simple form, the demand for new high quality contents is increasing considering change in education paradigm focusing on creativity. As a result, high quality interactive experiential education content for developing self-directed future talents is required. As a result of this, the development of ARD-based ICT experiential education content system that enhances learning effect of students by integrating ARD-based (Augmented Reality Display) ICT and experiential education to promote existence and immersion is being tested. This paper aims to improve efficacy and achieve vitalization through case analysis of AR-based ICT experiential education content. As a result of case analysis, the composition of content for improving education content included 1) constant securing and strengthening of experiential education content, 2) necessity for development of participating education content by diverse age groups, 3) development of differentiated ICT experiential education content, and 4) securing professional manpower and development of content in connection with education process. Therefore, with the efficacy of ARD-based ICT experiential education content, this study can first, enhance bond between students, second, enable self-directed learning, third, increase practical understanding in contents that were difficult to control by textbook contents, and fourth, increase interest and immersion in learning. Therefore, the contents on new converging technology that can maximize the development of constant content and cooperation between ICT technology and pedagogy for educating creativity and autonomy of ICT experiential education content.

• Bulletin of the Korean Chemical Society
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• v.34 no.8
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• pp.2408-2412
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• 2013

We demonstrate herein the synthesis and modification of magnetic nanoparticles and its use in the immobilization of the lipase. Magnetic $Fe_3O_4$ nanoparticles (MNPs) were prepared by simple co-precipitation method in aqueous medium and then subsequently modified with tetraethyl orthosilicate (TEOS) and 3-aminopropyl triethylenesilane (APTES). Silanization magnetic nanoparticles (SMNP) and amino magnetic nanomicrosphere (AMNP) were synthesized successfully. The morphology, structure, magnetic property and chemical composition of the synthetic MNP and its derivatives were characterized using transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR) analysis, X-ray diffraction, superconducting quantum interference device (SQUID) and thermogravimetric analyses (TGA). All of these three nanoparticles exhibited good crystallization performance, apparent superparamagnetism, and the saturation magnetization of MNP, SMNP, AMNP were 47.9 emu/g, 33.0 emu/g and 19.5 emu/g, respectively. The amino content was 5.66%. The AMNP was used to immobilize lipase, and the maximum adsorption capacity of the protein was 26.3 mg/g. The maximum maintained activity (88 percent) was achieved while the amount of immobilized lipase was 23.7 mg $g^{-1}$. Immobilization of enzyme on the magnetic nanoparticles can facilitate the isolation of reaction products from reaction mixture and thus lowers the cost of enzyme application.

• Journal of the Korea Society of Computer and Information
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• v.29 no.5
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• pp.143-153
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• 2024

This study aims to analyze both the current utilization of e-learning in the scuba diving education sector and the possible improvements by using Delphi analysis. The study administered three rounds of Delphi surveys with 25 specialists, including business executives and educational leaders from scuba diving centers and resorts affiliated with organizations that conduct scuba diving education through e-learning. The comparative analysis of the state of e-learning utilization and factors for improvement revealed significant insights. In terms of expected benefits, the analysis highlighted an increase in user convenience, temporal flexibility in learning activities, and easy access to products. However, it identified major issues such as the simplistic mandatory exams, inadequate professional depth in the feedback provided, and a lack of bidirectional communication between learners and instructors. Recommendations for improvements included enhancing communication through various online communities, conducting mandatory exams offline, and developing a variety of content. Conducting regular program quality evaluations, integrating with various diving communities, and assigning dedicated tutors were deemed crucial factors for future development.

• Proceedings of the Korean Society of Organic Agriculture Conference
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• 2009.12a
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• pp.315-315
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• 2009

Component analysis and physico-chemical properties of wood and rice hull vinegars were conducted in order to promote the utilization of these environment-friendly materials. Results showed that wood vinegar had higher specific gravity (2.5) and tar content (0.3%), but lower acid content (1.0%) than rice hull vinegar (1.7, 0.05% and 4.4%, respectively). GC-MS component analysis revealed that rice vinegar had higher phenol content (34%) than wood vinegar (11.49%). Acetic acid and propionic acid were also higher in rice hull vinegar. On the contrary, wood vinegar had higher Furancarboxyl aldehyde content (41.6%) than rice hull vinegar (0.67%). Thus, different results in DPPH radical electron donating-abilities were obtained due to different percent composition of each vinegar.

• International Journal of Knowledge Content Development & Technology
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• v.14 no.4
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• pp.85-99
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• 2024

The study examined perception of library personnel towards social media utilization for information service delivery in kwara state university library. It adopted the descriptive survey design with population consisting of 27 professional librarians in three selected university libraries in kwara State. Total enumerative sampling techniques were used because the population of the study is manageable by the researcher. Percentage and mean were used in analyzing the data. Primary data solicited would be cleaned, coded and entered into the Statistical Package for Social Sciences (SPSS) version 20 software for quantitative analysis. The findings of the study revealed the services rendered by library professional in university libraries in Kwara State, are Current Awareness Services (CAS), Photocopying services, Technical Services, Circulation/borrowing services, Internet services, and Bibliographic verification services. Majority of the respondent indicated Myspace, Google plus, Flickr, Telegram, Twitter, WhatsApp and Facebook are the social media platforms used for service delivery by librarians. Also, majority of the respondents in university libraries indicated Google plus, LinkedIn, Myspace, Skype, WhatsApp, Flickr, WeChat, Twitter and Facebook as social media space use for information service delivery effectively and Bandwidth problem, Limited fund, Lack of maintenance culture, Lack of Awareness, Copyright Issue, Technophobia are the major challenges inhibiting the use of social media for service delivery by the library staff. Lastly, the study concluded with recommendations.

• Food Science of Animal Resources
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• v.40 no.6
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• pp.924-937
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• 2020

The purpose of this study was to investigate the meat metabolite profiles related to differences in beef quality attributes (i.e., high-marbled and low-marbled groups) using nuclear magnetic resonance (NMR) spectroscopy. The beef of different marbling scores showed significant differences in water content and fat content. High-marbled meat had mainly higher taste compounds than low-marbled meat. Metabolite analysis showed differences between two marbling groups based on partial least square discriminant analysis (PLS-DA). Metabolites identified by PLS-DA, such as N,N-dimethylglycine, creatine, lactate, carnosine, carnitine, sn-glycero-3-phosphocholine, betaine, glycine, glucose, alanine, tryptophan, methionine, taurine, tyrosine, could be directly linked to marbling groups. Metabolites from variable importance in projection plots were identified and estimated high sensitivity as candidate markers for beef quality attributes. These potential markers were involved in beef taste-related pathways including carbohydrate and amino acid metabolism. Among these metabolites, carnosine, creatine, glucose, and lactate had significantly higher in high-marbled meat compared to low-marbled meat (p<0.05). Therefore, these results will provide an important understanding of the roles of taste-related metabolites in beef quality attributes. Our findings suggest that metabolomics analysis of taste compounds and meat quality may be a powerful method for the discovery of novel biomarkers underlying the quality of beef products.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.01a
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• pp.181-182
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• 2016

본 연구에서는 초등 교사가 교수-학습 활동에 있어 테크놀로지를 활용하는 정도와 TPACK 사이의 관계를 살펴보기 위하여 2015년 6월 10일부터 7월 10일까지 웹 기반 설문을 통하여 수집된 140명의 응답 자료를 분석하였다. 조사 결과 수업에 활용하는 테크놀로지의 수는 평균 1.39개였으며, 테크놀로지를 활용한 수업을 하는 과목의 수는 평균 3.09 과목이었다. 수업에 활용하는 테크놀로지의 수와 테크놀로지를 활용한 수업의 수를 환산하여 활용 정도로 나타낸 결과의 평균은 1.72였으며, 이는 초등교사의 TPACK과 유의확률 0.01 수준에서 .227의 양의 상관을 보였다.