• 주택과사람들
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• s.197
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• pp.10-15
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• 2006

한국 미술 사학자의 거장 최순우 선생의 오래된 한옥 자택. 한국의 전통을 유달리 사랑했던 학자가 살던 집은 어떤 향기를 지니는지 궁금해하는 대중에겐 반갑기 그지없는 일. 최순우 선생이 생의 마지막 순간을 보냈던 성북동 고택은 그의 청렴결백한 면모를 그대로 간직하고 있는 곳이다.

• Korean Journal of Heritage: History & Science
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• v.1
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• pp.34-43
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• 1965

• Transactions of The Korea Fluid Power Systems Society
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• v.7 no.2
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• pp.19-26
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• 2010

The typical trunk lid system for vehicle is composed of a hinge having 4-bar link and gas lifter. Here, the energy regenerative brake of hydraulic driven systems is applied to the tail gate system for vehicle and removed the gas lifter. The new tail gate system is composed of a hydraulic pump by electric motor, a hydraulic motor, four check valves, an accumulator, a relief valve and a directional control valve. The dynamic characteristics of the hydraulic motor system, such as the surge pressure and response time, are investigated in both brake action and acceleration action. The capacity selection method of accumulator by mathematical model is based upon trial and error approach and computer simulation by AMEsim software is carried out.

• Annual Conference on Human and Language Technology
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• 2003.10d
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• pp.73-80
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• 2003

본 논문에서는 색인 방법에 따른 한국어 정보검색시스템의 성능차이를 살펴보고 이를 분석하여 보다 검색성능을 높이기 위한 색인어 추출방법을 제안한다. 이를 위해 기존의 대표적인 색인법이라 할 수 있는 명사단위 색인법, 형태소 단위 색인법, 바이그램 단위 색인법, 어절단위 색인법에 대하여 실험을 통한 비교분석을 하였고, 질의별 분석을 통해 검색성능에 영향을 주는 요소들을 찾아내었다. 그 결과 빈칸, 면사분해, 명사, 동사, 형용사, 숫자등을 포함한 실질 형태소, 형식형태소의 제거, 외래어 등 추정명사의 분해 및 발음확장, 후방 단음절 명사로 구성된 복합명사의 분해, 의미를 변절시키는 바이그램 제거, 분해된 명사 수에 따른 복합명사 첨가 및 제거 등이 그 요소임을 확인할 수 있었다. 이를 토대로 각 색인법의 장점을 살려 색인 및 검색을 수행하여 보았다. 제안하는 방법은 동일한 실험집합에서 일관성 있은 성능향상을 가져다 줌을 알 수 있었다.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2008.04a
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• pp.156-161
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• 2008

The registered-properties guideline was adopted to preserve the facade of existing cultural assets with effect and alter the interior space freely. But many problems have been occurred over all the converted buildings with the passing of the years as a result of unfeasible design guidelines. Accordingly, the thesis is to propose the problem and assignment in a setting for a display through the conversion for exhibition of Korean traditional houses designated as modern cultural heritage focused on Riwhachang Choi Sunu House. The results are as follows; The exhibition circulation is continuously connected with each room, considering the previous life-style. The interior design elements are preserved according to the stand-up and sitting style. It is possible to put on one sided wall display in stand up style(Rhiwhachang), and island showcase display in sitting style(Choi Sunu House). And also these apparatus is suitable for the existing window pattern and frame. Therefore, this study is to suggest an assignment of design guideline for exhibition reuse in Korean Traditional Houses as well as the sustainable preservation of cultural assets as modern house.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.7
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• pp.1204-1209
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• 2001

According to the rapid development of information and communication, various services are offered using information and communication infrastructure for example e-commerce, internet banking, stock dealings, etc. This time, the most important problem is personal identification. But now secret number that is used to personal identification mostly can be misappropriated. To solve this problem, this paper proposes smart card identification system using 1 vs. 1 fingerprint matching. Information protection and security of smart card excel and use is convenient. And fingerprint becomes the focus of public attention in biometric field. Implemented system in this paper is based on PC. This system stores minutia that is fingerprint information into smart card and compare it with personal minutia. Therefore this system is sure to be on personal identification. If this system is applied to various services, safety degree of services will be enhanced.

• Journal of Drive and Control
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• v.16 no.4
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• pp.16-22
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• 2019

The electro-hydraulic training device (TP511) provided by Festo Didactic are widely used, but teaching materials do not include mathematical modeling. Thus, there is a limit for full-scale learning about the electro-hydraulic servo system by using this equipment. In this study, for the purpose of improving students' understanding of the classical control and modern control Festo's electro-hydraulic servo training device (TP511) was mathematically modeled and parameter values were calculated by examining the characteristics of each component. And P, PI, PD, and PID controllers highly used in the industrial field, were designed by using the root locus method to achieve the optimal gains and used for simulation and experiments using the Festo's electro-hydraulic servo training apparatus. The validity of the derived mathematical model and the calculated parameter values were verified through simulation and experiment. It was found that the p control can achieve the control target more effectively than the pid control for Festo's electro-hydraulic servo training system by using the root locus method.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.6 no.2
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• pp.207-213
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• 2002

Fingerprint has the characteristics that do not change with time and is unique to an individual. And fingerprint identification is considered the best choice for most biometric applications because of its accuracy, speed, reliability, non-intrusive interfaces and cost-effectiveness. In this paper, we applies fingerprint Identification to web site login to raise the quality of personal identification when we use e-commerce, internet banking, stock dealings, shopping mali, etc. The system implemented in this paper consists of embedded module to carry out fingerprint identification, web server and web site. Existing system carries out fingerprint identification in the web server, but the system Implemented in this paper carries out it in client. Therefore the loads of server are reduced and the confidence of internet service is improved because login is forbidden without fingerprint identification success.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.517-520
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• 2001

According to the rapid development of information and communication, various services are offered using information and communication infrastructure for example e-commerce, internet banking stork dealings, etc. This time, the most important problem is personal identification. But now secret number that is used to personal identification mostly can be misappropriated. To solve this problem, this paper proposes smart card identification system using 1 vs. 1 fingerprint matching. Information protection and security of smart card excel and use is convenient. And fingerprint becomes the focus of public attention in biometric field. Implemented system in this paper is based on PC. This system stores minutia that is fingerprint information into smart card and compare it with personal minutia. Therefore this system is sure to be on personal identification. If this system is applied to various services, safety degree of services will be enhanced.

• Archives of Plastic Surgery
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• v.38 no.5
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• pp.609-615
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• 2011

Purpose: Dermatofibrosarcoma protuberans is a relatively rare tumor that originates from the dermis and subcutaneous tissue. It is generally known that this tumor easily recurs but can be successfully treated with a wide excision. Therefore, this study was conducted to investigate postoperative outcomes and risk factors for recurrence in patients with dermatofibrosarcoma protuberans who were treated at a single institution for 20 years. Methods: We retrospectively reviewed the medical records of 35 patients who had underwent surgery between June 1992, and September 2010. The patients were assessed in terms of predilection site and size of the tumor, the incidence according to sex, discrepancy between biopsy results and histopathological diagnosis of the surgical specimen, additional treatment after recurrence, recurrence rate and the time interval to recurrence. Results: In multivariate analysis, the depth and site of the tumor were significant risk factors for tumor recurrence. The recurrence rate was significantly higher in tumors occurring in the upper extremity than those occurring in other regions ($p$=0.0348). In addition, the recurrence rate was significantly higher in tumors with involvement of the fascia and the deeper structures ($p$=0.0324, odds ratio=6, relative risk=1.588). Since dermatofibrosarcoma protuberans has strong invasiveness, its tissue involvement is difficult to evaluate accurately. Conclusion: The results of this study shows that involvement of the fascia and the deeper structures and occurrence in the upper extremity were associated with tumor recurrence. Therefore, clinicians should be aware of these risk factors to achieve better treatment outcomes.