• Carbon letters
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• 제6권2호
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• pp.86-88
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• 2005

Mesoporous activated carbon (AC) was prepared from aged petroleum coke through chemical activation. The AC has a specific surface area of 1733 $m^2/g$ and a mean pore diameter of 2.37 nm. The volume fraction of 2 to 4nm pores is 56.74%. At a current density of 10 mA/$cm^2$, a specific capacitance of 240 F/g is achieved representing the use factor of the surface area of 69.2%. And the electrical double layer capacitor (EDLC) based on the AC shows an excellent power performance. This result suggests that the presence of high fraction of mesopores can effectively increase the adsorption efficiency of the specific surface area of the AC and enhance the power performance of EDLC based on the efficient surface area of the AC.

• 정보보호학회논문지
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• 제28권6호
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• pp.1563-1583
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• 2018

전자금융 규제 완화와 함께 핀테크가 활성화되었다. 인공지능에 대한 논의가 금융업에서도 활발하다. 하지만 신기술의 이면에는 보안 위협의 증가라는 문제가 있다. 과거보다 연결이 되고, 금융업의 채널과 주체가 다양해지면서 보안 취약점이 증가했다. 보안에 대한 기술적, 정책적 논의가 있지만 결국 모든 논의의 본질은 인간이다. 금융의 기본은 신뢰와 보안이고, 이를 위해 인간적 요소에 대한 관심은 중요하다. 본 연구는 금융 보안을 위한 인간과 인공지능의 역할을 각각 제시한다. 나아가 인간과 인공지능이 서로의 한계를 보완한 협업 모델을 도출한다. 이를 뒷받침하기 위해 금융과 IT의 발전, 인공지능, 휴먼팩터, 그리고 금융 보안 위협에 대해 우선 논한다. 본 연구는 신기술의 시대에 보안 위협이 심화되지만 반대로 기계, 기술을 활용하여 이를 극복할 수 있다는 방향성을 제안한다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2016년도 춘계학술발표대회
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• pp.333-334
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• 2016

2010년 국가인원위원회에서는 시각장애인을 위한 점자 보안카드 발급과 관련하여 금융위원회 위원장과 금융감독원 원장에게 권고하였으며, 이에 따라 시중 은행 및 금융기관에서는 시각장애인 용 점자 보안카드 및 OTP등을 보급하였다. 하지만 제공된 점자 보안카드 및 OTP의 문제점가 발생하고 있으며, 2014년 기준 금융기관의 장애인 편의성 제공 지침 준수율이 스마트금융의 경우, 68%, ATM의 경우, 50%로 현저히 낮은 상황이다. 본 논문은 현재 시각 장애인용 금융 보안 및 키보드 등의 동향과 앞으로의 전망을 살펴보고자 한다.

• 한국중재학회지:중재연구
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• 제13권2호
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• pp.69-102
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• 2004

This paper discusses about the e-commerce and the various types of e-commerce disputes. Through empirical examination on the dispute consideration system and by comparative analysis it is derived out of the weakness of current system and finally some suggestions for improvement. First, it is recommended that the more sophisticated knowledge concerning e-commerce should be proliferated through the existing institutions. For example, disputes for B2C could be managed by the consideration system of consumer dispute consideration in Consumer Protection Board of Korea, while B2B by the arbitration system of the Korean Commercial Arbitration Board. Second, the role of Korea Institute for Electronic Commerce established for the purpose of consideration of e-commerce disputes is much emphasized. For successful achievement, it is necessarily required to reinforce the related laws, systems, institutions and human resources. Finally, it is also suggested that the Korean Commercial Arbitration Board and Consumer Protection Board of Korea fully cover consideration and arbitration, while Korea Institute for Electronic Commerce activates its proper role of consulting and ad hoc arbitration by using electronic information. This study results are how to minimize the disputes and the method of dispute settlement. Therefore, a role of arbitration proposed and emphasized. To protect the dispute in advance, it's suggested to revise rules timely following on technical changes, and emphasized that the dispute has to lead to arbitration settlement not for consuming unnecessary time and finance for enterprises and consumers.

• The Journal of Asian Finance, Economics and Business
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• 제8권2호
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• pp.1189-1200
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• 2021

This study examines the role of perceived enjoyment, self-efficacy, and subjective norms as determinants of behavioral intention to use the OVO application. This study's target population is the users of the OVO application who have used it as an electronic transaction. This study's population was the OVO application users as an electronic transaction tool in Jember Regency. Samples were randomly selected at the time of the survey with specific criteria. The survey location is determined at the Plaza because it is a shopping center that mostly has payments at OVO partner merchants. The model empirically tested using data gathered from 150 respondents of OVO users. The research model was tested by using the structural equation modeling (SEM) approach. The results showed that all constructs in the original TAM model were statistically significant. Subjective norm has a positive effect on perceived usefulness, and perceived enjoyment positively affects perceived ease of use of OVO applications. On the other hand, applications' self-efficacy does not affect the perceived ease of using OVO applications for electronic transactions. This condition shows that subjective norms are dominant external individual perspectives compared to self-efficacy, which are personal internal characteristics in determining the behavioral intention of using OVO applications in electronic transactions.

• Asia Marketing Journal
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• 제26권2호
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• pp.77-89
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• 2024

This study investigated central and peripheral route factors to assess the impact of Google Advertisements on how these factors contribute to users' call-to-action (CTA) and electronic word-of-mouth (e-WOM) behaviors. We explored the persuasive effects of Google Advertisements on consumers by using a dataset of 483 valid empirical samples from Taiwan. We employed structural equation modeling (SEM) to examine the hypotheses. The empirical results of this study indicate that both peripheral (image appeal) and central (information completeness) routes positively lead to the persuasion effect. This finding confirms that the peripheral and central routes increase the persuasion effect. The empirical results indicate that the most effective pathway was image appeal to the persuasion effect and, ultimately, to call to action. Image appeal was also determined to be a secondary pathway that enhances the persuasion effect, ultimately leading to e-WOM. These findings have valuable implications for companies seeking to attract customers to purchase electronic products through the Google search engine. The novelty of our study is that it includes the peripheral route. Our study findings were derived from the symbolic value lens, rather than the central route based solely on the utilitarian and hedonistic value perspective.

• 융합보안논문지
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• 제13권4호
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• pp.53-59
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• 2013

컴퓨터와 정보통신 기술의 발전으로 사이버테러 및 금융사기를 위한 해킹 기술도 진화하고 있으며 이를 대비하기 위한 선진국 수준의 표준화된 정보보호 기술의 연구 개발이 어느 때보다 중요해지고 있다. 본 논문에서는 주요 정보보호 기술에 대한 국외대비 국내의 기술 및 표준화 수준을 진단함으로서 개선점을 제안하며, 시장 기술적 파급효과와 정부 정책 추진과의 부합성을 분석하여 향후 연구개발 방향을 제시한다. 정보보호 기술은 정보보호기반 및 이용자 보호, 네트워크 및 시스템 보안, 응용보안 및 평가인증의 세 가지로 분류하고 세부적으로 OTP기반 인증, 스마트폰앱 보안, 모바일 전자금융 등 9가지로 구분하여 각각의 세부 기술에 대한 현황을 분석한다. 분석 결과, 전반적으로 국외 대비 표준화 및 기술개발 역량이 다소 부족한 것으로 평가되며, 특히 시장 기술적 파급효과가 큰 스마트폰앱 보안 및 모바일 전자금융에 대한 국제적 수준의 기술개발과 표준화 역량이 강화되어야 하고, 미래인터넷에서의 정보보호 기술에 대한 정부의 지원 정책이 시급한 것으로 평가된다.

• International Journal of Advanced Culture Technology
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• 제8권4호
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• pp.271-278
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• 2020

Modern financial services go beyond the stage of internet banking, and new concepts of financial transactions such as Internet of Things, mobile banking, electronic payments, and fintech have emerged. As a result, banks are less influential in financial transactions, and changes are being demanded. In the present era, the basic business of banks has decreased, and it is transforming into a space where both consumer finance work and reside. The bank office stands for the brand image of the bank, and it is represented by trust with customers in the basic business of financial transactions, and the rise in real estate value is a natural social phenomenon due to the nature of the location and location of real estate owned by the bank. The business method and space of the bank office that meets the new paradigm of the modern society is an inefficient space only for the convenience and rest of consumers, but it must be used as a variety of spaces suitable for the region to increase the functional value of the bank office. Through this study, as a convenience space for consumers, various service facilities should be introduced to understand the characteristics of the region as a convenience space for consumers, and various service facilities should be introduced to meet the needs of consumers, and the bank office should be improved as a complex service space for local residents.

• The Journal of Asian Finance, Economics and Business
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• 제9권4호
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• pp.315-324
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• 2022

The goal of this study is to understand better the relationship between hospital bed occupancy rate and cost rigidity as a proxy for the degree of hospital bed congestion, as well as the relationship between the risk of changes in hospital bed occupancy rate and congestion cost, targeting public hospitals. As public hospitals for analysis, we selected hospital projects from the Public Enterprises Survey Reports published by the Department of Public Enterprises, Ministry of Finance, and obtained unbalanced panel data consisting of 1,505 hospitals and 15 years, totaling 12,595 hospitals and years. The analysis revealed that the risk of changes in the bed occupancy rate increases the degree of cost rigidity and leads to a decrease in the variable cost ratio; furthermore, an increase in the bed occupancy rate decreases the degree of cost rigidity and leads to an increase in the variable cost ratio. These findings suggest that although public hospitals are taking managerial actions to avoid congestion costs, congestion costs resulting from higher bed occupancy rates have not been eliminated. The regression analysis results show that even if congestion costs arise as the occupancy rate increases, they are covered by the increase in revenue associated with the increase in the occupancy rate.

• 무역학회지
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• 제42권5호
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• pp.233-252
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• 2017

국제무역의 대금결제방식이 기존에는 신용장방식, 추심방식 등이 많이 이용되었지만 최근에는 오픈어카운트 방식으로 그 이용이 증가하고 있다. 이러한 오픈어카운트 방식의 증가추세에 금융권이 대응하고, 정보화 시대에 발맞추고자 새로이 등장한 BPO 제도는 신용장의 지급보장은 물론 전자거래의 편리성을 결제제도에 유용하게 접목시켰다고 할 수 있다. 한편 공급망금융은 기업이 물품을 생산 및 공급하는 과정에서 필요한 운전자금을 보다 신속하게 제공하기 위하여 사용하는 금융으로 특히 자본여력이 충분하지 않은 중소수출기업이 이용함으로써 효율성을 보다 극대화할 수 있다. 이에 본 연구는 중소수출기업이 국제무역거래에서 필요한 자금운용을 적절하게 이용하고, 다국적 기업과 경쟁하여 도태되지 않기 위하여 BPO 제도 및 공급망금융의 효율적 이용을 도모하고자 연구를 진행하였다.