• Journal of Technology Innovation
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• v.26 no.2
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• pp.129-149
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• 2018

Technology finance is an area in which financial authorities have introduced and implemented a strong policy will for the advancement of the financial industry and the development of SMEs. As a result, the Bank's own technology evaluation was conducted from September 2016. Technically superior companies are upgrading their credit ratings, and as a result, they benefit from financial transactions as much as their higher credit ratings through technology evaluation. Based on the data generated during this process, we analyze the degree to which credit ratings was upgraded by technology evaluation. The pre study handles 406 data from KEB Hana Bank's technology evaluation conducted in the second half of 2016. As a result of combining the credit rating with the calculated technology rating, J58 'Publishing Activities' technology-credit rating is raised by 1.05 rating, which is the highest, and C10 'Manufacture of Food Products' is the second highest. As a result, we were able to identify the sectors that benefited from the technology evaluation and confirmed the usefulness of technology evaluation by industry(KSIC). To expanding the study, 2,719 companies evaluated during the entire period were analyzed by technology grade, business experience and promising growth industry code. As a result of the analysis, technological power over T-4 grade companies had the highest credit rating upgrades. The companies belonging to promising growth industries designated for efficiency of policy support, it is confirm that the support of the promising business type was useful because the credit grade was upgraded through technology evaluation. The validity of the technology evaluation based on the five-year business experience was found to be insignificant. In the future, it will be possible to maximize the support effect by concentration on the companies with over T-4 grade and growth potential companies when supporting SMEs.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2002.11a
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• pp.113-116
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• 2002

최근 인터넷의 급속한 발달로 인해, 인터넷을 이용한 전자상거래가 급증하고 있다. 그 결과로 전자화폐, 전자지갑, 전자수표와 같은 안전한 전자지불시스템에 대한 연구가 계속되고 있다. 그러나 현재 쓰이고 있는 전자화폐 프로토콜들은 대부분 사용자의 익명성 보장을 해주지 못하고 있다. 본 논문에서는 안전하고, 익명성을 보장해주는 효과적인 지불 프로토콜을 제안하였다. 사용자가 은행으로부터 전자화폐를 발급 받고 난 다음, 상점에 그 전자화폐를 사용하기 전에 더 높은 익명성을 원한다면 TTP (AP)를 거처서 사용자의 정보를 감추는 것이다. 이 TTP는 사용자로부터 받은 전자화폐의 유용성을 검증하고, 다시 암호한 데이터를 인증해준다. 이러한 새로운 방법을 통해 사용자는 자신의 시간, 연산과 비용 등을 고려하여 적절한 단계의 익명성을 제공받을 수 있다. 효율성 증가를 위해서, DLP 기반에서 ECDLP 기반으로 옮겼으며, 이중사용을 방지하기 위해 ECC를 이용한 Schnorr 서명을 사용하였다.

• Proceedings of the Korea Association of Information Systems Conference
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• 2002.11a
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• pp.348-364
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• 2002

본 연구는 기술개발상의 위험을 진단하면서, 상업화의 위험을 시장분석을 통하여 관찰하고 가격변동으로 인한 민감도를 고려하면서, 신기술 적용상의 장기적인 이익 및 수익의 예측정확도를 극대화하고 시장점유율을 예측할 수 있는 새로운 기법으로서 사례기반추론을 통한 신기술 사업성 평가시스템을 제시하고자 한다. 또한 본 연구가 새롭게 제시하는 기법과 새롭게 재무분석 분야에서 연구되고 있는 성장옵션 모형을 활용한 신기술 가격결정 시스템을 개발하고자 한다. 이 두 가지 시스템을 통하여 신기술의 마케팅적 관점, 재무걱 관점, 시스템적 관점을 모두 파악할 수 있으며 보다 객관적이고 과학적이며 예측 정확도가 높은 신기술의 화폐적 가치를 산출할 수 있게 될 것이다. 신기술의 사업성 평가에 관한 연구는 향후 한국기업의 국가경쟁력을 위해서 꼭 필요한 과업이며 신기술 기반의 중소기업을 효율적으로 지원하기 위해서도 꼭 이루어져야만 하는 중요 과업이 아닐 수 없다. 그러나 이러한 과업의 중요성에 비해서 그 동안 관련 연구는 거의 이루어지지 않았고(황규성, 2001) 다만 은행 등 금융권의 실무자들이 쉽게 적용할 수 있는 단순한 방법들이 제시되는 정도에 불과하였다. 이렇듯 관련 연구가 부족한 이유는 관련 분야가 재무관리, 회계학, 마케팅, 관련 기술분야 등 광범위하게 걸쳐져 있고 실무적인 성격이 강하여 학문적으로 일반화하기가 쉽지 않기 때문이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.631-634
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• 2005

공공기관 및 국가 연구기관 뿐만 아니라, 대학 및 모든 기업체는 연구 및 업무 수행 중 발생하는 모든 제반 지식 및 성과 정보를 관리하고 공동 활용하기 위하여 지식관리 시스템(Knowledge Management System)을 구축하여 업무 수행의 효율성을 꾀하고 있다. 각 기관은 연구 활동 및 업무 수행에 필요한 기자재 구입이나 연구비(비용) 지출에 대한 거래처 정보(거래 관계자 및 해당 은행 계좌정보)를 관리 및 활용하고 있는데, 거래처 정보는 일반적으로 특정 부서 및 업무 담당자에 의해 관리됨으로 인해 유용한 정보를 공유하는데 있어서 어려움을 지닌다. 본 논문에서는 지식관리 측면에서의 거래처 정보 공유 방법을 제시함으로써, 연구 활동 및 업무 수행에 있어서 거래처 정보 및 구매 혹은 지출 등의 관련 거래 정보를 유용한 지식으로써 공동 활용코자 한다.

• Journal of Internet Computing and Services
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• v.9 no.1
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• pp.69-78
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• 2008

Finance, Securities, banking system provides information through Internet, DM SMS, IVR, E-mail and FAX for customer. Customers can use multi channel. Enterprise requires Host transaction and transparency for DB processing, This paper provides two contributions to the study. First, we discuss Server of Fire insurance (finance, securities and capital, bank system) in Enterprise. Second, we present Real time monitoring system for customer transparency. Finally, we design and implement the proposed system. These techniques can be efficiently supported in CRM(Customer Relationship Management).

• Korean Journal of Ecology and Environment
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• v.35 no.2 s.98
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• pp.123-132
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• 2002

Experiments have been carried out in barge enclosure near Bukhangang area and arificially eutrophicated pond. Applied plants are three terrestrial plants (Big cone pine, Pine needles and Ginkgo) and one aquatic plant (Water chestnut). In the experiment pond, applied plants are big cone pine, pine needles and ginkgo at the concentration of 0.5 g/l and water chestnut of 0.3 g/l. And it used pine needles at the concentration of 0.3 g/l in barge enclosure. The dominant species was Microcystis aeruginosa. Chlorophyll a concentration decreased to the extent of average 65% as compared with the beginning of experiment by the input of big cone pine and pine needles in artificially eutrophicated pond. But it was decreased to the extent of average 34% by the input of water chestnut. Especially, pine needles significantly inhibited the growth of algae from the early days in barge enclosure, it was declined at a rate of average 74%. It was proved that pine needles was the most inhibitory to the growth of algae at the treatment with $0.3{\sim}0.5\;g/l$, Ginkgo and water chestnut are needed more study. We purified that the dissolved phenolic compounds from the various plants can affect algal growth.

• Archives of design research
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• v.12 no.2
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• pp.5-16
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• 1999

Nowadays the banks, with a wide spread of credit transaction practice in every business, offer better services to their customers, while the automation of banking is being made more rapid progress in th light of efficient banking service. For example, it is true that the automation of cash payment for customers goes on its progress and the competition between companies is getting more serious. Lately the banks that pursue "Banking Automation System" expand distribution of cash dispenser for the better electronic computer service and for the better service for their customers in quality. Therefore the makers producing "CD" accelerate their development of CD in various ways in order to secure MIS as the leading group of th field. CD, a kind of an automatic paying, is being used generally, and has various functions and its design is getting more compact than ever. Under this situation, I studied more trustworthy and convenient CD design suggestions in the way of case study on the basis of the process of developing CD and I suggest the better way of developing the design of CD in the future.of CD in the future.

• Journal of the Korea Society of Computer and Information
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• v.29 no.5
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• pp.203-211
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• 2024

Utilizing programming languages for data visualization can enhance the efficiency and effectiveness in handling data volume, processing time, and flexibility. However, practice is required to become proficient in programming. Therefore public data-based the problem bank was developed to practice data visualization in a programming automatic assessment system. Public data were collected based on topics suggested in the curriculum and were preprocessed to make it suitable for users to visualize. The problem bank was associated with the mathematics curriculum to learn various data visualization methods. The developed problems were reviewed to expert and pilot testing, which validated the level of the questions and the potential of integrating data visualization in math education. However, feedback indicated a lack of student interest in the topics, leading us to develop additional questions using student-center data. The developed problem bank is expected to be used when students who have learned Python in primary school information gifted or middle school or higher learn data visualization.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.13 no.6
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• pp.149-161
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• 2003

Partially blind signature scheme allows the signer to insert non-removable common information into his blind signature. Blind signatures providing with both users privacy and data authenticity are one of key parts of information systems, such anonymous electronic cash and electronic voting as typical examples. Partially blind signature, with which all expired e-cash but for still-alive can be removed from the banks database, copes well with the problem of unlimited growth of the banks' database in an electronic cash system. In this paper we propose an efficient ID-based partially blind signature scheme using the Weil-pairing on Gap Diffie-Hellman group. The security of our scheme relies on the hardness of Computational Diffie-Hellman Problem. The proposed scheme provides higher efficiency than existing partially blind signature schemes by using three-pass protocol between two participants, the signer and requesters also by reducing the computation load. Thus it can be efficiently used in wireless environment.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 1999.05a
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• pp.113-119
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• 1999

본 논문에서 구현한 평가 시스템은 클라이언트/서버 환경 하에서 교사로 하여금 서버에 저장되어 있는 문제은행을 자신의 PC에서 손쉽게 관리하고, 인터넷을 통해 학생들을 테스트할 평가 문제를 자유롭게 출제할 수 있도록 투명성을 제공하고 있다. 또한 테스트 결과를 다양하게 통계 처리하여 보여줌으로써 교사가 학생 및 학급별 학습 능력 수준을 손쉽게 파악할 수 있도록 처리하였다. 학생들은 인터넷 접속을 통해 문제를 풀고 즉시 보여지는 채점 결과를 통해서 자신의 오답과 정답을 즉시 비교해 볼 수 있으며, 더불어 문제 해설 부분을 통하여 보충학습의 효과를 얻을 수 있도록 하였다. 이에 본 논문은 교사가 학생 수준에 적합하게 학생들을 개별 지도할 수 있는 자료를 제공함으로써 기존의 교사 주도적이고 획일화된 주입식 교육 방식의 문제점을 해결하며, 이를 통해 학생들에게 학습 의욕을 향상시킬 수 있는 기회를 제공하고자 하였다.