• Applied Microscopy
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• 제45권1호
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• pp.1-8
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• 2015

We have developed a new HD-2700 (Hitachi High-Technologies Corp., Japan) scanning transmission electron microscope (STEM) that includes an automatic aberration correction function, and a large-solid-angle energy-dispersive X-ray spectroscopy detector that enables high-resolution and sensitive analysis. For observation with atomic resolution, using spherical-aberration-corrected STEM, in order that satisfactory performance of the device can be achieved readily, and within a short time, irrespective of the operator's skill level, a spherical-aberration-correction device with an automatic aberration-correction function was developed. This automatic aberration-correction function carries out the entire correction-related process (aberration measurement, selection and correction) automatically, with automatic selection of the aberrations that require correction, and automatic measurement of the appropriate corrections.

• 유통과학연구
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• 제20권6호
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• pp.57-66
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• 2022

Purpose: Business agility is an important key to survival for SMEs in Indonesia, especially during the COVID-19 pandemic. Indonesian local product distribution and service distribution are mostly served by SMEs. Agile businesses will be able to assist them in the proper distribution of products and services. This research examines how the direct and indirect influence of IT capabilities on business agility through organizational learning and business intelligence for small and medium enterprises in the distribution of Indonesian products and services. Research design, data and methodology: This research uses SEM method with SmartPLS tool. The sample of this research was conducted on small and medium enterprises in the distribution of Indonesian products and services. The sample obtained in this study was 202 SME owners or managers (strategic level). Results: Business intelligence plays a key role in improving business agility. The results of IT capability can directly and indirectly affect business agility through organizational learning. Conclusions: Business intelligence has the biggest role in increasing business agility in SMEs in Indonesia. IT capability has an indirect effect on business agility through organizational learning. The findings of this study prove that IT capabilities do not indirectly affect business agility through business intelligence.

• 지역연구
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• 제13권2호
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• pp.119-141
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• 1997

This study aims to identify the role of science park for technology commercialization and business promotion. After theoretical review about science park and technology commercialization, the instruments for stimulating entrepreneurship and business in science park are described. The experience of Taedok Science Town is examined in terms of main sectors of activities, universities as base for technology transfer and the potential for technology commercialization. In conclusion, the complex model is suggested as the development strategy for business incubation in accordance with the stages of development and active technology commercialization.

• 경영과학
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• 제28권1호
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• pp.11-24
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• 2011

In this paper, we develop a new conceptual framework for finding new business opportunities in the cloud computing environment. We propose a service model framework for cloud computing business. In the service concept of the proposed business model, we categorize customer needs and service offering value, while we analyze customer behavior for developing revenue model. In addition, we analyze cloud computing market drivers for finding an evolution path of the proposed business model. Finally, we develop cloud computing business strategies for Korean IT service industry.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2018년도 추계학술대회
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• pp.92-92
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• 2018

Silene seulensis Nakai was used as traditional medicines in Korea, we collected plant from demilitarized zone (DMZ). S. seulensis was extracted with 30, 50, and 70% ethanol and partitioned successively with n-hexane, EtOAc, dichloromethane and BuOH. These extracts (30, 50 and 70% ethanol) were evaluated the cytotoxicity on B16F10 and Hacat cell lines. The LC-MS/MS data of each fractions (n-hexane, EtOAc, dichloromethane, and BuOH) were compared with MS library, combined with ultraviolet/visual (UV/Vis) and MS data for faster determine structure by database search results. This led to the identification of four compounds (1-4) from S. seulensis. These compounds was isolated first time from S. seulensis. Their chemical structures are elucidated by combinations of NMR and mass spectrometry techniques.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2019년도 춘계학술대회
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• pp.102-102
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• 2019

This study developed a HPLC analysis method for the determination of avicularin (AL) and quercitrin (QT) in Astilbe chinensis by HPLC. HPLC was performed on a Capcell Pak C18 MGII column ($4.6{\times}250mm$, $5{\mu}m$) with a gradient elution of 0.05% (v/v) trifluoroacetic acid (TFA) and acetonitrile at a flow rate of 1.0 mL/min at $30^{\circ}C$ and a UV detection wavelength of 254 nm. The analytical method was validated for its specificity, precision, accuracy, and linearity. The limits of detection and quantitation were AL 0.09 and 0.28 mg/mL, QT 0.03 and 0.09 mg/mL respectively. Calibration curves showed good linearity (AL r2 > 0.99990 and QT r2 > 0.99994), and the precision of analysis was satisfied (less than AL 0.59%, QT 0.63%). Recoveries of quantified compounds ranged from AL 100.57 to 102.08%, QT 99.94 to 100.64%. These results indicate that the developed HPLC method was applied successfully to the detection of AL and QT in A. chinensis.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2019년도 춘계학술대회
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• pp.100-100
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• 2019

This study attempted to establish a High Performance Liquid Chromatography (HPLC) analysis method for the determination of (-)-epicatechin gallate as a part of the quality control for the development of functional cosmetic materials from Penthorum chinense Pursh extracts. HPLC was performed on a Unison US-C18 column ($4.6{\times}250mm$, $5{\mu}m$) with a gradient elution of 0.05% (v/v) trifluoroacetic acid (TFA) and methyl alcohol at a flow rate of 1.0 mL/min at $30^{\circ}C$. The analyte was detected at 280 nm. The HPLC method was performed in accordance with the International Conference on Harmonization (ICH) guideline (version 4, 2005) of analytical procedures with respect to specificity, precision, accuracy, and linearity. The limits of detection and quantitation were 0.11 and 0.33 mg/mL, respectively. Calibration curves showed good linearity (r2 > 0.9999), and the precision of analysis was satisfied (less than 0.6%). Recoveries of quantified compounds ranged from 99.51 to 101.92%. This result indicates that the established HPLC method is very useful for the determination of marker compound in P. chinense Pursh extracts.

• 유통과학연구
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• 제21권12호
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• pp.15-22
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• 2023

Purpose: Business education is in high demand whereas knowledge is critical for an individual's professional development in general, and for teachers in particular. In this research, the effect of the distributions of teachers' business knowledge on schools' achievement were investigated. Research design, data and methodology: This study employs a quantitative method to investigate the level of business knowledge distributions of teachers on schools' achievement. 155 business studies subject teachers were categorised into 66 respective schools to measure the correlation and regression between teachers' business knowledge distribution and schools' achievement. Results: The results of the study show that there is a significant relationship between school achievement from the aspect of teachers' business knowledge distributions, with the score of, r = 0.345, p < 0.05. The value of R² shows a moderate relationship between the teachers' knowledge distributions on school achievement but still plays a role in determining the measurement of the school's level of achievement. Conclusions: It is concluded that the relationship between teacher's business knowledge and school achievement in the subject of Business Studies is significant. This study proves that the teacher's knowledge about business is very important in guaranteeing the success of students who took this subject.

• 유통과학연구
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• 제15권3호
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• pp.27-37
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• 2017

Purpose - The current study analyzes the effect of business startup education on business startup education satisfaction and entrepreneurial intention. Also, it attempts to discover if business startup confidence plays a moderating role between business startup education satisfaction and entrepreneurial intention. Research design, data, and methodology - The survey was conducted for approximately 60 days, from July 20, 2016 to September 20, 2016, and distributed to 300 restaurant founders who started their business through business startup education provided by Korea Food Service Industry Association in Seoul, Kyungki and Incheon or existing business founders. Results - Per multiple regression analysis of business startup education and business startup education satisfaction, among business startup education, all law, entrepreneurship, commercial power analysis, and practical education have significantly positive effect. Per simple regression analysis of business startup education satisfaction and entrepreneurial intention, business startup education has significantly positive effects on entrepreneurial intention. Business startup education satisfaction and business startup confidence interaction show that they do not have a moderating role between business startup education satisfaction and entrepreneurial intention. Conclusions - Setting up theoretical reasoning, this study supports conclusions drawn by prior studies: business startup education has significantly positive effects on business startup education satisfaction and entrepreneurial intention.

• 한국식품조리과학회지
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• 제22권6호통권96호
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• pp.756-767
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• 2006

This study investigated the attitudes towards business ethics of 409 University students majoring in culinary science and foodservice management. The survey questionnaire evaluated their attitudes by ATBEQ (Attitudes towards Business Ethics Questionnaire), using a seven-point scale and the data were analysed by frequency, t-test, ANOVA and reliability analysis. The average value of ATBEQ was investigated with attitudes towards ethics (3.48${\pm}$0.79), application of the ethics to business (4.24${\pm}$0.71), business profit making (4.18${\pm}$0.71), businessman (4.29${\pm}$0.67) and practice of business ethics (3.16${\pm}$0.79). The female, undergraduate and younger students showed significantly higher scores of attitudes towards business ethics (higher ethical attitude) than the male, graduate and older students, respectively. There are some similar results between Korean and Israeli students, while western students (America, Australia and Turkey) showed different attitudes with Korean students.