• Journal of Korean Society of Industrial and Systems Engineering
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• v.44 no.3
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• pp.125-132
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• 2021

In this study, the improvement of the IP system, which is the core infrastructure of the MRO project, and its effect were analyzed. Systematic problems and problems that are not competitive in the actual operating environment were systematically derived, and based on this, the most suitable method for target system development was found and improved. And the data of the improved system was analyzed and the effect was verified through empirical analysis of the system improvement effect through the user questionnaire. As a result of the study, the item with the highest improvement effect was convenience, which increased by 12.43 points. Then it increased by 10.25 points in terms of features. In particular, you will notice a significant improvement in speed by 30-50%. This is because the empirical analysis results are more objective and realistic than other conceptual models. Also, from the practical point of view, based on the results of the empirical analysis, corporate management can more effectively promote the intellectual property system, which is expected to contribute to the enhancement of corporate competitiveness.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.4
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• pp.475-482
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• 2021

This research intends to examine and analyze the service quality effect on petrol buying intention through satisfaction when the Maranatha Christian University lecturers spend their money in the Pertamina-affiliated gas stations in Bandung. To attain this goal, we develop four relevant hypotheses to be tested. Furthermore, we use simple random sampling to acquire samples by denoting a sample size set by the Slovin formula. To collect the responses, we use the online survey and fruitfully yield a 53.54% rate with a total of 106 lecturers participating in completing the distributed questionnaire link. This number is near 100; hence, we employ a structural equation model with a variance basis to analyze them. After examining the data and conferring the results, we conclude three things. First, service quality does not affect purchasing intention, but customer satisfaction positively does. Second, service quality has a positive impact on customer satisfaction. Finally, consumer satisfaction successfully mediates the effect of service quality on the intention to buy. Based on these conclusions, this paper finds the superior service to the petrol buyers is the key driver for the gas stations under Pertamina control to effectively compete with their rivals in the marketplace, especially in Bandung.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.14 no.3
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• pp.49-61
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• 2004

In broadcast encryption schemes, traceability is a useful property to trace authorized subscribers, called traitors, who collude for manufacturing a pirate decoder. Unfortunately, this is usually achieved with a sacrifice of a privacy. Most traitor tracing schemes in the literature have been developed without considering a subscriber's anonymity, which is one of important requirements for electronic marketplaces to offer similar privacy as current marketplace. It would be unsatisfactory for the subscriber to reveal his/her identity to purchase multimedia contents. In this paper we propose an anonymous broadcast encryption scheme, where a user can subscribe anonymously and one purchases multimedia contents without giving a lot of information about his lifestyle, habits, and etc, but anonymity control is provided, i.e., a data supplier can date traitors.

• The Journal of Information Systems
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• v.30 no.2
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• pp.165-188
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• 2021

Purpose This study was conducted to identify the multidimensional role of institutional mechanisms in the linear relationship of satisfaction, trust and repurchase intention, which are used as an important concept in the research of e-commerce. To this end, a research model was proposed by combining concepts which are the concept of perceived effectiveness of institutional mechanisms for overall e-commerce environment(e.g., PEEIM) and the concep of perceived effectiveness of institutional structures(e.g., PEIS) of a specific marketplace based on the social cognitive theory. Design/methodology/approach This study was conducted by dividing the data into two groups to identify institutional mechanisms and trust-building relationships according to the institutional contexts inherent in e-commerce. The institutional contexts were set up for the top two online companies and the bottom two online companies according to the results of the open market brand assessment from 2018 to 2019 in South Korea. Findings The result of this study found that PEIS had a direct impact on trust in both high and low groups respectively whereas PEEIM presented different paradoxical results in high and low groups. In the relationship between the satisfaction and the trust in the vendor of the high group, PEEIM showed negative moderating effects but in the relationship between the trust and the repurchase intention of the low group PEEIM showed positive moderating effects.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.8
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• pp.503-511
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• 2021

The emerging competitive environment in today's global marketplace is one where businesses no longer compete with each other as autonomous, individual firms. Global, economic, and technological development pressure forces organizations to continually enhance their performance through knowledge sharing and innovativeness. The purpose of this paper is to explore the moderating role of knowledge sharing and the mediating role of innovativeness in the relationship between transformational leadership and organizational performance. The data was collected from 389 employees in Vietnamese industrial enterprises through a questionnaire survey. The information was then analyzed by explanatory factor analysis (EFA) confirmatory factor analysis (CFA) as well as structural equation modeling (SEM). The results show that the mediating role of innovativeness and the moderating role of knowledge sharing in the relationship between transformational leadership and performance, are supported. Organizations may reap the benefits of an innovative workforce by selecting, nurturing transformational leaders. This study contributes to the field of human resources management, particularly leadership, by exploring the role of transformational leadership. Moreover, this is the first study to test the moderating role of knowledge sharing and the mediating role of innovativeness in the relationship between transformational leadership and the organizational performance.

• The Journal of Economics, Marketing and Management
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• v.7 no.4
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• pp.1-5
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• 2019

Purpose - Along with the rapid growth of the economics and IT industry, E-commerce appears as the next potential area of world economics. For this no-entity shops commerce style, logistics is crucial for the success of E-commerce. Research design, data and methodology - In this paper, Dangdang.com, the largest online marketplace in China, is studied and a conceptual model is present, to develop a practical way to develop the logistics system in E-commerce situation. Results - This research finds that following 4 factors are critical success factors for E-commerce logistics: 1) logistics centres are very important to control the inventory management; 2) keep good cooperation with third-party logistics (3PL) can guarantee good quality shipping service and also can reduce delivery costs; 3) build strong information system; 4) quick response system also needed for an efficient logistics system. When E-commerce firms are developing their logistics systems, they should pay more attention to these 4 critical success factors. Conclusions - In summary, successful 3PL management is vital for competing regionally and globally throughout the logistics value chain. We see information system as an enabler in logistics management to get the right products to the right place in the right quantity at the right time and to provide quality services to satisfy the customer's needs.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.1
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• pp.395-405
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• 2021

The sophistication of technology information has led to a series of innovative activities in the economy, particularly in buying and selling products and services both conventionally and online. Currently online activities provide opportunities for customers to get the desired needs. The purpose of this research is to examine the effect of website quality, hedonic shopping motivation, and impulse buying on customers' satisfaction of online shopping in Indonesia. Eight online marketplaces are the focus of this research. This study uses a quantitative approach. This is a structural equation research with data obtained from 177 students through an online questionnaire using a five-point Likert scale; the selection criteria is having shopped online from various universities in Indonesia. The statistical testing tool used is SPSS 26.0, with the effect between variables determined using Partial Least Square (SmartPLS 3.0). The findings of this study indicate that the nine proposed hypotheses are accepted, positively and significantly, directly or indirectly, which are supported by previous research to reinforce the findings that have been found. The interesting attributes associated with this study are hedonic shopping motivation and impulse buying that mediate the relationship between website quality and customer satisfaction of online shopping in Indonesia's marketplace.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.4
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• pp.437-442
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• 2022

Squid jeotgal is a very popular traditional, salted, and fermented seafood in Korea. Due to the development of a distribution structure, a lot of imported squid jeotgal has recently entered Korea. In this study, we analyzed and compared the microbial contamination levels of domestic and imported squid jeotgal. The total viable bacterial count in domestic and imported jeotgal was 5.20 and 5.38 log CFU/g, respectively. The highest contamination level was 6.94 log CFU/g in one of the imported squid jeotgal samples. Coliforms were not detected in domestic jeotgal but were detected at 50% with 2.21 log CFU/g in imported jeotgal. Escherichia coli and Staphylococcus aureus were not detected (ND: <1 log CFU/g) in both domestic and imported jeotgal. All samples of jeotgal were negative for Bacillus cereus and Clostridium perfringens. The microbial contamination levels determined in the current study may be utilized as primary data to execute microbial risk assessments on domestic and (or) imported jeotgal.

• Journal of Distribution Science
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• v.21 no.7
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• pp.11-20
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• 2023

Purpose: The development of e-commerce in the marketplace is becoming a big trend, but there is a handful of research about the unique characteristics of e-commerce. Online distribution has several differences from offline, such as consumer approach, payment, and product assortment. In addition to the relationship between quality factors and e-commerce satisfaction, this study research how brand awareness affects consumer satisfaction and which quality factor affects brand awareness. Research design, data, and methodology: This study conducted a survey on 457 customers using top online shopping malls. As for the analysis method, multiple regression analysis to verify the mediating effect. Results: All quality factors and brand awareness affect consumer satisfaction. Among the quality factors, only price, payment, and delivery had an effect among the four factors. As a result of verifying the mediating effect of brand awareness in the relationship between online shopping mall quality factors and consumer satisfaction, price, payment, and delivery showed mediating effects. Conclusion: Online shopping mall satisfaction affects the satisfaction of brand awareness consumers perceive aside from consumers' direct experience. The result showed that price, payment, and delivery were significant in the relationship of quality factor and brand awareness of an online shopping malls.

• Journal of Sensor Science and Technology
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• v.33 no.1
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• pp.1-6
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• 2024

This study aims to suggest the partition ratio (Q-factor) of healthy Koreans and the comparison results of breath alcohol concentration (BAC) measurements using two methods (photoacoustic and electrochemical methods) for developing breath alcohol ignition interlock devices (BAIIDs). Given the relationship between BACs and BrACs and the Q-factor, the alcohol metabolism of healthy Koreans (96 males and 91 females) is revealed for understanding the digestion of alcohol and surveying the fundamental data of alcohol-related problems, CO₂ concentrations vs. alcohol concentrations, and the performance of alcohol sensors in the marketplace. The average Q-factor of healthy Korean males and females are 1,913 (95% confidence interval from 1,889-1,937) and 1,991 (95% confidence interval from 1,945-2,036). Photoacoustic measurements could be applied to predict the BACs of drinkers, which is confirmed by the Bland-Altman plots presented in this study. The biases based on the partition ratios (Q=1,913 and Q=1,991) in the Bland-Altman plots were -0.0004% (95% CI from -0.0011 to +0.0003% for males) and -0.0017% (95% CI from -0.020 to +0.017% for females).