• Electronics and Telecommunications Trends
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• v.33 no.5
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• pp.64-75
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• 2018

People usually check their social media, e-mail, and online news on their smartphones using their carrier network. During this process, much of the data traffic is offloaded to ubiquitous Wi-Fi networks. Such offloading will continue to increase rapidly because of flourishing public Wi-Fi networks located around the world. In this technical report, we first investigate domestic public Wi-Fi projects, and followed by foreign projects. In addition, we investigate the Wi-Fi technology evolution that has been standardized in IEEE 802. More and more people are tending to use Wi-Fi, not only at home or work, but also on public transport such as buses and trains. Hence, it is important to come up with ideas that can realize Wi-Fi onboard. The key technologies needed here are related to a mobile wireless backhaul between trains and trackside radio equipment, or between buses and roadside units. Thus, we also investigate the mobile wireless backhaul technologies and their trends.

• East Asian Journal of Business Economics (EAJBE)
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• v.3 no.1
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• pp.1-7
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• 2015

Ethics suggest that all persons are by nature moral, as it would not be possible for humans to exist collectively or even individually without an innate ethical sense. In order for the public sector to thrive in business, the board of directors needs to be guided by ethics and take into account the abiding interests of humanity and public good. It is argued in this paper that the abuse of power in the public sector has often been associated with unethical leadership and conducts which undermines the ubuntu notion. The irregularities which often arise in the awarding of tenders in the state-owned companies are some of the challenges that are prone to the public sector. In order to address these challenges and promote a flourishing democracy it is argued that ethical leadership as envisaged in the King III Report needs to be adhered to by the boards of directors. This paper concludes that the direction and control of ethics in any organisation is vital especially where the line between corporate governance and ethical leadership has become blurred.

• Management & Information Systems Review
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• v.18
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• pp.133-161
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• 2006

E-business has received much attention from entrepreneurs, executives, investors, and industry observers recently. The Internet is flourishing and the World Wide Web is growing at an exponential rate. In recent years, information has become the critical commodity needed for success in the changing global economic order. Accordingly, business organizations have come to the conclusion that they require an extensive data repository in order to acquire a competitive advantage in a dynamically change market. This rich assortment of data must further be delivered and deliverable enterprise-wide in a secure and cost-efficient manner. Information technology(IT) has created the E-business as a vitally important mechanism for the storage, dissemination, and even the analysis data. The E-business has become increasingly important to a growing number of organizations in Korea in relatively short order. The present study is an attempt to develop a more through understanding of the potential and actual impact of the B-business on organizational functions and activities. Expecially, it also consists of an effort to assess the impact of the E-business on profitability. The research also addresses the issue of how the E-business affects profitability and shapes or modifies business activities. The results of literature review and study revealed that middle managers believe that the extent of the I-business use is significantly related to improvements in overall organizational functions and activities. While communication, decision-making, productivity, work collaboration, and business activities are all enhanced by E-business use, profitability appears to be most dramatically improved by Intranet use.

• Management & Information Systems Review
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• v.14
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• pp.1-24
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• 2004

The Internet is flourishing and the World Wide Web is growing at an exponential rate. A fundamental concept of Intranet, the so-called second wave, was introduced only a few years ago. Intranets have been embraced by corporate users of information services and made substantial inroads in strategic vision documents and procurement practices. Business organizations have come to the conclusion that they require an extensive data repository in order to acquire a competitive advantage in a dynamically change market. This rich assortment of data must further be delivered and deliverable enterprise-wide in a secure and cost-efficient manner. Information technology(IT) has created the Intranet as a vitally important mechanism for the storage, dissemination, and even the analysis data. The present study is an attempt to develop a more through understanding of the potential and actual impact of the Intranet on organizational functions and activities. Expecially, it also consists of an effort to assess the impact of the Intranet on work collaboration. The research also addresses the issue of how the Intranet affects work collaboration and shapes or modifies business activities. The results of literature review and study revealed that middle managers believe that the extent of the Intranet use is significantly related to improvements in overall organizational functions and activities. While communication, decision-making, productivity, work collaboration, and business activities are all enhanced by Intranet use, Work Collaboration appears to be most dramatically improved by Intranet use.

• Journal of the Korea Society of Computer and Information
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• v.18 no.10
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• pp.81-88
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• 2013

Since nowadays mobile phone messages are flourishing, the application of electronic coupon (e-coupon) will become a trend for mobile users. E-coupon for mobile commerce can provide mobility for users and distribution flexibility for issuers. In this paper, we propose a mobile e-coupon system that just applies some simple cryptographic techniques, such as one-way hash function and XOR operation. In our system, the customer can control the number of issued e-coupons and the issuer can prevent them from double-redeeming. The customer does not need to perform any exponential computation in redeeming and transferring the coupons. Our scheme uses one-way hash chains for preventing from double-spending.

• East Asian Journal of Business Economics (EAJBE)
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• v.2 no.3
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• pp.18-22
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• 2014

Ethics suggest that all persons are by nature moral, as it would not be possible for humans to exist collectively or even individually without an innate ethical sense. In order for the public sector to thrive in business, the board of directors needs to be guided by ethics and take into account the abiding interests of humanity and public good. It is argued in this paper that the abuse of power in the public sector has often been associated with unethical leadership and conducts which undermines the ubuntu notion. The irregularities which often arise in the awarding of tenders in the state-owned companies are some of the challenges that are prone to the public sector. In order to address these challenges and promote a flourishing democracy it is argued that ethical leadership as envisaged in the King III Report needs to be adhered to by the boards of directors. This paper concludes that the direction and control of ethics in any organisation is vital especially where the line between corporate governance and ethical leadership has become blurred.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.11a
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• pp.829-832
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• 2006

The river environments of many streams in korea have been deteriorate through the rapid industrialization and urbanization since the 1960s. In korea, on the other hand, much efforts on the research and project have been made for the restoration of the deteriorated streams to close-to-nature. in order to restore the deteriorated streams, therefore, it is necessary to investigate such advanced technologies and materials. In view of this requirement, various research paths are being taken focusing on coarse aggregates to make multi-functional porous concrete having continuous voids so as to improve water and air permeability, acoustic absorption, water purification, and applicability to vegetation. The Purpose of this study is to investigate the method for recovery of the environment in the streams area using porous concrete painting block. the P.O.C block applies for test in the kyungan-cheon have been monitored planting during six month. after 6 months, plant grows flourishing and reconstructed in state such as nature rivers.

• Journal of Information Technology Applications and Management
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• v.13 no.2
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• pp.127-143
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• 2006

As the number of Internet users increases, online shopping malls are gradually flourishing and sales are continuously growing. However, since consumers are not able to check what they purchase when buying products on the Internet, they are bound to have higher risk perception than buying directly from off-line stores. Especially, sporting goods require a special attention because a preliminary test is important. Therefore, the risk perception is much higher when people purchase sporting goods online. This study first identifies the multi-dimensionality of risk perception. Then, it investigates whether online purchasing experience of sporting goods makes differences in the level of risk perception. In addition, it examines whether the risk perception by those who had an experience in purchasing sporting goods online affects the customer satisfaction. This study has identified five dimensions in the concept of risk perception, such as financial risk, performance risk, security risk, delivery risk, and psychological/physical risk. A statistical analysis shows that people without an experience in purchasing sporting goods online have perceived significantly higher performance risk, security risk, and psychological/physical risk than those with online purchasing experiences. Finally, this study has found that delivery risk, financial risk, and psychological/physical risk have significant negative influences on the customer satisfaction.

• Asia pacific journal of information systems
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• v.17 no.1
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• pp.123-145
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• 2007

There are flourishing studies in the acceptance or usage of information systems literature. Most of them have taken the pro - acceptance view. Undesirably, information technologies often provoke users' reactance or resistance. This paper explores one of the negative reactions -psychological reactance. The present paper studies the effects of the users' perception of threatened freedom and personalization degree on intention to use recommendation services. High personalization can be a major motivation for users to accept recommendation systems. However recommendation services are a two-edged sword, which not only provides users the efficiency of decision making but also poses threats to free choice. When people consider that their freedom is reduced or threatened by others, they experience the motivational state to restore the freedom. This motivational state must be considered in understanding usage of information systems, especially personalized services which are designed for persuasion or compliance. This paper empirically investigates the effect of personalization and the psychological reactance on the intention to use information systems in the personalized recommendation context. Users' perception of personalization increases the usefulness of recommendation service while their perception of threat to freedom reduces the intention to use personalized recommendation service. Findings and implications are discussed.

• Korean Medical Education Review
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• v.21 no.2
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• pp.63-72
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• 2019

The purpose of this study was to introduce the concept of academic medicine to the medical societies of Korea and to identify any potential obstacles in the establishment of academic medicine in Korea. The core concepts of academic medicine include medical education, research, and patient care. Academic medicine can be practiced in the unique area of healthcare involving medical schools and teaching hospitals by faculty physicians in the academic medicine field. Through academic medicine, the next generation of healthcare professionals is trained, new discoveries can be made, and patients can find new hope for a cure. The flourishing of academic medicine has resulted in substantial advancements in medicine over the past few centuries, but at the turn of the 21st century, there was concern that academic medicine was on the decline. To address this concern, the International Campaign to Revitalize Academic Medicine was established and announced five scenarios to 2025 to debate the future of academic medicine. Although the system resembles that of Western medical societies, Korean medical societies were not familiar with academic medicine, and poor conditions caused by the distorted healthcare system in Korea have actually interfered with the nurturing of academic medicine. One of the main problems may include less interest in medical education and research relative to clinical practice by medical societies and the government. Collaborative efforts from both medical societies and the government are needed to establish academic medicine successfully in Korea for a better future.