• Archives of design research
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• v.13 no.3
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• pp.271-280
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• 2000

This is the deconstruction of functionism and means the complex phenomenon of disharmony such as the reputation of purity, search for history, irony and so on. The perceptional system of post modernist and deconstructionist philosopy, that allow us to have the critical angle of view such as the deconstruction of the existing foundation and the absence of the meaning of the reasoncentered thinking of the west, is shown to be grafted into design, fashion and so forth. These elements are taking root as the style of the end of the 20th century. The deconstructional fashion revolting against the existing regime has been reconstructed and created a innovative aesthetic sense by going so far as to address the way that doffing is formed, the way to handle materials and physiological and psychological elements. The deconstructional fashion depicted on new interpretation of the body proportion with planeness and specificity while ignoring three-dimensionality , structuristic rationality

• 대한공업교육학회지
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• v.45 no.2
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• pp.131-158
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• 2020

The purpose of this study is to develop and apply an informal engineering education program for engineering education that is realized outside the framework of formal education. To this end, a non-format engineering education program was developed and rationalized, discussing participants' experience in participating in the program. The developed non-format engineering education program was applied to 90 high school learners interested in engineering in a one-night, two-day camp format, and the goal was confirmed through open surveys and in-depth interviews. The goal of the non-format engineering education program is to understand the importance of engineering and engineering design in real life and the principles of engineering design processes, and to use a variety of knowledge and tools to creatively solve engineering problems creatively. In addition, education programs were developed based on the fact that real-life examples allow engineers to understand what they do, design their own careers, and collaborate with colleagues to share various engineering issues and develop communication skills on engineering topics.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.1 no.1
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• pp.67-74
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• 2008

As wireless network market is increasing rapidly, the biggest issue is to transfer safe data and to authenticate users. This paper proposes ECbA(Elliptic Curve based Authentication) which consists of the mutual authentication mechanism that users can ascertain the identity of an authentication server and the user authentication mechanism that an authentication server can make sure users' identity, by using Elliptic Curve algorithms. The proposed ECbA system diminishes the message quantity and the execution time by using the small elliptic curve algorithm with the small key length in authentication. In addition, as this paper reduces the authentication steps of existing EAP_TLS into 6 authentication steps, the communication cost and mutual authentication time can be saved. As this paper distributes new keys, whenever authenticating users by using key exchange mechanism, it provides safe encryption communication and prevents DoS attack by controlling the users authentication request by authentication server.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.27 no.9
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• pp.844-853
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• 2016

Generally, the compromising electromagnetic emanations are generated from LCD(Liquid Crystal Display) monitor which is typical output component of computer. Because display information transmitted to LCD monitor is included in these emanations, there are risks about information leakage of monitor by eavesdropping of leaked signal. So, analysis about possibility of information leakage is necessary because electromagnetic security through the electromagnetic emanations is being at issue. In this paper, the possibility of display information leakage are demonstrated by analyzing the electromagnetic emanations from desktop and laptop monitors. The characteristics of leaked signal from LCD monitor is verified by analyzing display mechanism and the electromagnetic emanations are measured in the long distance by eavesdropping experiment. Also, threat of information leakage is confirmed by recovering display information with several signal processing technique and comprising with target display.

• Journal of the Korea institute for structural maintenance and inspection
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• v.20 no.5
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• pp.58-65
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• 2016

Recent frequent occurrence of urban sinkhole serves as a momentum of the periodic inspection of sewer pipelines. Sewer inspection using a CCTV device needs a lot of time and efforts. Many of previous studies which reduce the laborious tasks are mainly interested in the developments of image processing S/W and inspection H/W. However there has been no attempt to find meaningful information from the existing CCTV images stored by the sewer maintenance manager. This study adopts a cross-correlation based image processing method and extracts location data of sewer inspection device from CCTV images. As a result of the analysis of time-location relation, it shows strong correlation between the device's stand times and the sewer damages. In case of using this method to investigate sewer inspection CCTV images, it will save the investigator's efforts and improve the sewer maintenance efficiency and reliability.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.151-151
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• 2015

최근 기후변화 및 토지 이용변화 때문에 홍수가 빈번하고 이로 인한 피해가 급증하고 있으며 4대강 사업이 이슈가 되면서 강우예측과 홍수량 산정에 대한 연구가 활발히 진행되고 있다. 하지만 여전히 홍수량 과다 과소 산정으로 인하여 지역적으로 문제점이 야기되고 피해가 발생하고 있다. 특히 Thiessen방법은 유역의 면적 강우량을 산정하기 위해 광범위하게 사용되고 있는데 중 소유역 또는 미계측 유역에 적절한 고려없이 무분별하게 사용하고 있어 문제가 발생되고 있는 실정이다. 또한 현재까지 큰 문제는 발생하지 않았지만 여전히 안전이나 위험에 노출된 상태이다. 따라서 Thiessen망 사용의 정밀한 분석이 무엇보다 필요한 실정이다. 따라서 본 연구를 통하여 소유역 및 미계측 유역을 대상으로 Thiessen망 이용시 관측소 선정에 따른 홍수량의 차이를 분석하고, 이에 따라 어떠한 문제가 발생할 수 있는지 분석하였다. 기존 소유역 및 미계측 유역 중 Thiessen방법을 적용하여 홍수량을 산정한 사례를 전반적으로 조사하였다. 이중에서 여러 지점중 Thiessen망 사용으로 유역이 분할되어 홍수량산정에 문제가 될 수 있는 관하천, 수외천, 주교천, 풍천을 연구 대상지점으로 선정하였다. 부적절한 Thiessen망 산정이 홍수량 산정에 미치는 영향을 평가하기 위하여 신뢰성있고 가장 실설계에 많이 사용되고 있는 다음의 방법으로 홍수량을 산정하였다. 먼저, 관측소 선정에 있어서 관측년도가 비교적 길고 유역과 가장 가까운 기상청 관할의 관측소를 선정하고 홍수량 산정요령에 따라 홍수량을 재 산정 하였다. 본 연구로부터 나온 결과에서, 산정된 홍수량은 기존의 Thiessen망을 통하여 산정된 홍수량과 차이를 보였고, 이는 Thiessen다각형 이론에 위배되는 관측소 선정이 원인으로 밝혀졌다. 따라서 본 연구에서는 관측년도가 길고 강우자료의 신뢰도가 높은 기상청 관할 관측소의 강우자료를 우선적으로 사용할 것을 제시하였다. 또한, 여러 관측소의 강우자료를 Thiessen망을 통하여 산정하는 부적절한 산정법을 신뢰성있는 단일지점의 강우량 산정법으로 적절한 홍수량이 산정할 것을 제시하였다.

• The Korean Journal of Archival Studies
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• no.16
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• pp.3-37
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• 2007

The new environment for records managements requires the revolutionary transition from paper-record management to electric-record management. Capturing contents, contexts, and structure informations of the electric records to preserve the evidentiality, authenticity, and reliability is the outstanding issue. The recordkeeping metadata has been placed at the center of the current issue. This study focused on the establishment of the structures of recordkeeping metadata for current and semi-current stages in the life cycle of records. The reason concentrated on current and semi-current stages is that the authenticity of the record is concerned as the evidence of the business processes. Current and semi-current stages are where the records is able to be produced, captured and managed in the business context. The metadata can be collected and preserved with authenticity. This study explained the relations between entities concerned with producing records and proposed the metadata elements by establishing data model.

• Design Convergence Study
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• v.15 no.3
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• pp.1-17
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• 2016

Nature-mimetic architecture has been discussed for a long time in the West. There were differences in understanding nature, the pursuit of nature-mimetic and the characteristics of nature-mimetic architecture. It can be inferred that it was influenced by various happenings in each period. The purpose of this study is to acknowledge the characteristics of nature-mimetic architecture up from the past to the present, and to understand the difference through the timeline of historical events. First, the study inquires the characteristics of nature-mimetic architecture by timeline. Seek the perception and attitude, characteristics of nature-mimetic architecture and the value of it through cases of Ancient Greek, Medieval, Renaissance, Early Modern and Modern. Secondly, understand the important historical issues that influenced nature-mimetic architecture such as view of nature, social aspect, religion and scientific technology. Finally, discuss the relationship between nature-mimetic architecture and its historical background.

• Annual Conference of KIPS
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• 2021.11a
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• pp.659-662
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• 2021

국내에서는 매년 많은 수의 자격시험이 치러지고 있다. 현재 대부분의 시험장에서 응시자 본인 확인 절차는 감독관이 응시자의 얼굴과 신분증 사진을 비교하는 방식으로 이루어진다. 하지만 이 방식은 사람에 따라 오차가 클 수 있으며, 사진과 눈에 띄는 차이가 없으면 동일인물로 판단하기 쉽다. 최근까지도 대리응시 이슈가 발생하고 있어 근절을 위한 보다 강력한 조치가 필요하다. 본 논문에서는 지문과 오토인코더, SGAN을 이용하여 대리응시방지를 강화할 수 있는 본인 확인 시스템을 제안한다. 이때 응시자의 지문정보가 그대로 인증 서버에 저장되면 응시자의 생체정보가 노출될 수 있다는 문제점이 존재한다. 따라서 오토인코더를 통해 지문의 특징점만 추출하여 인증용 이미지를 생성하고 이 이미지를 서버에 저장하여 학습시키도록 한다. 적은 학습데이터 환경에서 분류기로써 좋은 성능을 갖는 SGAN을 통해 인증 이미지와 응시자가 동일인물인지 확인할 수 있다. 서버가 공격을 받더라도 응시자의 지문데이터가 그대로 노출되지 않게 되어 보안 취약점을 극복할 수 있다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.7
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• pp.887-892
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• 2023

Vessel traffic service(VTS) centers are equipped with RADAR, AIS(Automatic Identification System), weather sensors, and VHF(Very High Frequency). VTS operators use this equipment to observe the movement of ships operating in the VTS area and provide information. The VTS data generated by these various devices is highly valuable for analyzing maritime traffic situation. However, owing to a lack of compatibility between system manufacturers or policy issues, they are often not systematically managed. Therefore, we developed the VTS Bigdata Platform that could efficiently collect, store, and manage control data collected by the VTS, and this paper describes its design and implementation. A microservice architecture was applied to secure operational stability that was one of the important issues in the development of the platform. In addition, the performance of the platform could be improved by dualizing the storage for real-time navigation information. The implemented system was tested using real maritime data to check its performance, identify additional improvements, and consider its feasibility in a real VTS environment.