• Title/Summary/Keyword: 공주학

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Building Gongjuhak Archive to Establish Gongju Locality and Lay the Foundation for Gongju Studies (공주 로컬리티 확립과 연구를 위한 공주학아카이브 구축사례)

  • Ko, Soonyoung
    • Journal of Korean Society of Archives and Records Management
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    • v.20 no.2
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    • pp.115-121
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    • 2020
  • This article introduces the process of building Gongjuhak Archive that collects and databases data from various fields related to the region, enabling people to easily establish Gongju locality and lay the foundation for Gongju Studies. Gongjuhak Archive is built in accordance with the win-win development agreement between both Gongju City and Gongju University, and is proud to have played a pioneering role in the regional studies archive established by the local government. Therefore, we hope to share our concerns and experiences in building Gongjuhak Archive and to successfully develop it with regional studies archive building institutions across the country.

Development of Instructional Design Model and Checklist for AI Education (인공지능교육을 위한 수업설계모형 및 체크리스트 개발)

  • Kim, So-yeon;Cho, Seo-yeon;Kang, Shinchun;Lee, Eun-sang;Im, Tami
    • Journal of Engineering Education Research
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    • v.25 no.6
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    • pp.81-92
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    • 2022
  • The purpose of this paper was to develop an instructional design model and checklist for AI education. Literature review was conducted to derive the structure of the instructional design model. And delphi survey was conducted twice to revise and improve the elements & items of the instructional design model and checklist and to confirm the content validity of both instructional design model and the checklist. As a result, an instructional design model consisting of three main steps(Analysis - Design & Development - Implementation & Evaluation) was suggested with a detail checklist which explained what teachers need to do in each step of this instructional development model when they prepare AI education using this instructional design model. Limitations and suggestions for further studies were presented at the end of this paper.

딥러닝 기반 얼굴인식 모델에 대한 변조 영역 제한 기만공격

  • Ryu, Gwonsang;Park, Hosung;Choi, Daeseon
    • Review of KIISC
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    • v.29 no.3
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    • pp.44-50
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    • 2019
  • 최근 딥러닝 기술은 다양한 분야에서 놀라운 성능을 보여주고 있어 많은 서비스에 적용되고 있다. 얼굴인식 또한 딥러닝 기술을 접목하여 높은 수준으로 얼굴인식이 가능해졌다. 하지만 딥러닝 기술은 원본 이미지를 최소한으로 변조시켜 딥러닝 모델의 오인식을 발생시키는 적대적 예제에 취약하다. 이에 따라, 본 논문에서는 딥러닝 기반 얼굴인식 시스템에 대해 적대적 예제를 이용하여 기만공격 실험을 수행하였으며 실제 얼굴에 분장할 수 있는 영역을 고려하여 설정된 변조 영역에 따른 기만공격 성능을 분석한다.

Topology Optimization of Reinforcement Pattern for Pressure-Explosion Proof Enclosure Door in Semiconductor Manufacturing Process (위상최적화 기법을 이용한 반도체 공정용 압력방폭형 외함 도어의 보강 패턴 최적화)

  • Yeong Sang Kim;Dong Seok Shin;Euy Sik Jeon
    • Journal of the Semiconductor & Display Technology
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    • v.22 no.2
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    • pp.56-63
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    • 2023
  • This paper presents a method using finite element analysis and topology optimization to address the issue of overdesign in pressure-explosion proof enclosure doors for semiconductor manufacturing processes. The design conducted in this paper focuses on the pattern design of the enclosure door and its fixation components. The process consists of a solid-filled model, a topology optimization model, and a post-processing model. By applying environmental conditions to each model and comparing the maximum displacement, maximum equivalent stress, and weight values, it was confirmed that a reduction of about 13% in weight is achievable.

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A Comparison of Four Atmospheric Corrosivity Modeling Results for Aircraft (4개 모델에 따른 항공기의 대기 부식성 모의 결과 비교)

  • Mu-sung Woo;Jae-won Lee;Ji-hye Lee;Kyong-jin Woo;Jongchul Park
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.31 no.3
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    • pp.79-92
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    • 2023
  • Aluminum alloys are important materials in modern aircraft. Aircraft failures due to corrosion are fatal and costly. Thus, information about the atmospheric corrosion of aluminum is helpful for aviation safety. This study employed four corrosion models and 12 environmental variables to improve knowledge of aluminum atmospheric corrosivity: PACER LIME, ICP, ISO CORRAG, and a modified model of CORRAG. This study applied each model on 47 aircraft operating bases in Korea and compared the results. In the results, The risk of corrosion was different for each model. The cause was the difference in environmental variables according to the model. Especially, the effect of ozone, which has recently been increasing, was shown in the results of PACER LIME. These findings suggest that caution is needed when assessing atmospheric corrosion risk as a single model. Furthermore, it means that the application and integration of various models are needed to improve atmospheric corrosion risk assessment.

A study on the halophyte vegetation and halophyte flora characteristics of coastal ecosystem in the West and South coasts in Korea (한국 서·남해안 연안생태계의 염생식물군락과 염생식물상의 특성에 관한 연구)

  • Ji Won Park;Eui Joo Kim;Jung Min Lee;Yoon Seo Kim;Yeo Bin Park;Jae Hoon Park;Se Hee Kim;Kyeong Mi Cho;Yoon Kyung Choi;Ji Hyun Seo;Joo Hyun Seo;Young Han You
    • Journal of Wetlands Research
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    • v.26 no.1
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    • pp.72-81
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    • 2024
  • Korea is surrounded by the sea on three sides, salt marshes and coastal sand dunes adjacent to them are developed. This study attempted to reveal the characteristics of the coastal ecosystem by investigating and analyzing the characteristics of plant communities and flora of 571stands of 48 sites in the salt marshes and coastal sand dunes on the western and southern coasts of Korea. As a result, in the salt marshes, 39 vegetation units appeared, with Phragmites australis community having the widest area and Chenopodium virgatum community having the narrowest area. Suaeda glauca community was distributed closest to the coastline, while Suaeda maritima community extended the farthest seaward. In the coastal sand dunes, 29 vegetation units were distributed with Elymus mollis community having the widest area and Salsola komarovii community having the narrowest area. Calystegia soldanella community was showed closest to the coastline, while Rosa rugosa community extended the farthest landward. The flora of the salt marshes consisted of 6 families, 14 genera, 17 species, 1 variant, and 18 taxa (floristic regional indicator score; 16) and the coastal sand dunes consisted of 11 families, 18 genera, 20 species, 1 variant, and 21 taxa (floristic regional indicator score; 34) appeared slightly higher than that of salt marshes. This result is interpreted that halophyte that are sensitive to salinity can grow on the coast of the west-south coast of Korea because coastal sand dunes are more indirectly affected by sea than salt marshes.