• 한국콘텐츠학회논문지
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• 제21권2호
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• pp.641-651
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• 2021

슈퍼컴퓨터는 과학, 산업, 국가안보 및 사회현안 해결 등의 다양한 분야에서 중요한 역할을 수행해 왔으며, 빅데이터, AI 등을 활용한 영역에서의 활용이 강화되면서 그 수요는 크게 증가하고 있다. 최근에는 다양한 아키텍처 기반으로 글로벌 엑사스케일 시스템 개발 경쟁이 가속화되고 있어, 머지않은 미래에 엑사스케일 컴퓨팅 시대가 도래할 예정이다. 그러나, 국내 슈퍼컴퓨팅 생태계는 과거 서버산업 쇠퇴로 기반이 유실되었으며, 이를 보완 및 육성하고자 관련 법이 제정되었음에도 그 기능을 원활히 수행하지 못하고 있다. 이에 본 연구에서는 유관 법제도 분석 및 슈퍼컴퓨팅 생태계 현황 분석을 통해 현행 법제도에서의 문제점을 살펴보고, 정부·국가센터·전문센터의 역할 강화, 산업체 지원, 연구결과의 실용화 촉진, 정부 육성시책의 유연성을 수용하고 연관 법제도에서 슈퍼컴퓨팅 연구개발사업의 추진 근거를 마련할 수 있도록 개선사항을 제시한다.

• Journal of Forest and Environmental Science
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• 제37권2호
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• pp.91-103
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• 2021

We conducted an analysis of agroforestry system efficiency to conserve biodiversity in the Mbalmayo Forest Reserve (MFR) between March 2018 and June 2018. A synthesis of forest fragmentation data observed on multiple strata and scale satellite imageries over 31 years, between 1987 and 2018 as well as, the use of both a floristic and a faunal surveys, revealed that although 29.28% of natural forests was fragmented and converted to agroforests landscapes, banana and cocoa based agroforest appeared to perform the most relevant records in carbon storage and to attract wild terrestrial and avifauna. Analysis of NDVI, NDWI and Iron Oxyde helped monitor the vegetation cover of the reserve, and differentiate natural and fragmented classes, majority of conserved forest wetlands and agroforestry systems, and a minority of natural dryland forest. Further analysis also revealed significant correlations between NDVI and Shannon Index, and between NDVI and carbon stock. Based on the NDVI value and the equation Y=3.827×X-1.587 (where Y for the carbon stocks and X for NDVI value), we estimated the total carbon stock of the forest reserve at about 99557.6 tonnes, and its mean value at about 8.491 tons/ha. Nevertheless, environmental efforts to sustainably manage agroforestry landscape appear to be a relevant key to conserve wild biodiversity and mitigate climate change at the level of the Mbalmayo Forest Reserve. If anthropogenic activities have deeply changed the reserve's natural landscape, reduced its carbon sequestration performance, and wildlife conservation status, forest wetlands appear to remain its most conserved places and the best refuge for wild fauna still occurring in diverse strata of the MFR.

• Smart Structures and Systems
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• 제30권3호
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• pp.333-338
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• 2022

Planning activity is complex process assuming the term "complexity" as a group of elements interconnected each other. The common knowledge about city planning underlines its main aim as: figuring the present, imaging the future, governing every day the territory and the way people use and live it at different scales. When considering the strength of technological opportunities and the spreading of ICT and IoT devices within everyday life, that mean within the life of cities, the complex nature of the urban system increases with the intensification of information and their connections. Recent orientations about urban and regional planning try to carry the discipline to a more flexible approach in respect to the hyperdeterminant role of direct technical applications. This passage is a fundamental aspect considering the faster and faster modifications of social and economic assets at the global and local scale. At the same time, the "environment question" became more and more relevant at the worldwide scale within the 2015 UN 2030 Agenda for Sustainable Development. Another relevant aspect about the recent urban planning orientations regards the role of the different subjects that are part of the planning process. Approaching the government of smart cities means to define how every subject, with different roles (public or private), could enrich the knowledge of the functioning of the "urban machine" and the awareness of participation of people and city users in the quality of urban life. In the paper author starts defining recent approaches in urban planning, then the nature of the city as a complex system is analyzed from the point of view of planners and of the different subjects that act in the city. Then the smart city is introduced as a further level of complexity and finally author propose the basic element of a Planning Support System.

• 한국컴퓨터정보학회논문지
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• 제27권11호
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• pp.57-66
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• 2022

본 논문에서는 Sentence-BERT 모델을 활용한 법률 문서 검색 방법을 제안한다. 법률 검색 서비스를 이용하고자 하는 일반인들은 법률 용어 및 구조에 대한 이해가 부족함에 따라 관련 판례 검색 등에 있어 어려움을 겪고 있다. 기존의 키워드 및 텍스트마이닝 기반 법률 검색 방법은 판결문의 문맥에 대한 정보가 없으며, 동음이의어 및 다의어에 대해 구분하기 어려워 성능을 높이는 데 한계가 있었다. 그로 인해 법률 문서 검색 결과에 대한 정확도가 낮아 신뢰하기가 어려웠다. 이를 위해, 대법원 판례 및 법률구조공단 상담사례 데이터에서 일반인의 법률 검색 문장에 대한 성능을 개선하고자 한다. Sentence-BERT 모델은 판례 및 상담 데이터에 대한 문맥 정보가 임베딩 되므로, 문장의 의미 손실이 적어 TF-IDF 및 Doc2Vec 검색 방법과 비교했을 때보다 검색 정확도가 개선된 것을 확인할 수 있었다.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1113-1116
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• 2009

The attempt to use a 3D model each field such as design, structure, construction, facilities, and estimation in the construction project has recently increased more and more while BIM (Building Information Modeling) that manages the process of generating and managing building data has risen during life cycle of a construction project. While the 2D Drawing based work of each field is achieved in the already existing construction project, the BIM based construction project aims at accomplishing 3D model based work of each field efficiently. Accordingly, the solution that fits 3D model based work of each field and supports plans in order to efficiently accomplish the relevant work is demanded. The estimation, one of the fields of the construction project, has applied BIM to calculate quantity and cost of the building materials used to construction works after taking off building quantity information from the 3D model by a item for a Quantity Take-off grouping the materials relevant to a 3D object. A 3D based estimation program has been commonly used in abroad advanced countries using BIM. The program can only calculate quantity related to one 3D object. In other words, it doesn't support the take-off process considering quantity of a contiguous object. In case of temporary materials used in the frame construction, there are instances where quantity is different by the contiguous object. For example, the formwork of the temporary materials quantity is changed by dimensions of the contiguous object because formwork of temporary materials goes through the quantity take-off process that deduces quantity of the connected object when different objects are connected. A worker can compulsorily adjust quantity so as to recognize the different object connected to the contiguous object and deduces quantity, but it mainly causes the confusion of work because it must complexly consider quantity of other materials related to the object besides. Therefore, this study is to propose the solution that automates the formwork 3D modeling to efficiently accomplish the quantity take-off of formwork by preventing the confusion of the work which is caused by the quantity deduction process between the contiguous object and the connected object.

• 한국전기전자재료학회논문지
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• 제36권2호
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• pp.99-108
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• 2023

Currently, semiconductor manufacturing industry heavily relies on a wide range of high global warming potential (GWP) gases, particularly during etching and cleaning processes, and their use and relevant carbon emissions are subject to global rules and regulations for achieving carbon neutrality by 2050. To replace high GWP gases in near future, dry etching using alternative low GWP gases is thus being under intense investigations. In this review, we report a current status and recent progress of the relevant research activities on dry etching processes using a low GWP gas. First, we review the concept of GWP itself and then introduce the difference between high and low GWP gases. Although most of the studies have concentrated on potentially replaceable additive gases such as C₄F₈, an ultimate solution with a lower GWP for main etching gases including CF₄ should be developed; therefore, we provide our own perspective in this regard. Finally, we summarize the advanced dry etch process research with low GWP gases and list up several issues to be considered in future research.

• 한국환경농학회지
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• 제41권4호
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• pp.261-275
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• 2022

BACKGROUND: Prior to implementing a positive list system (PLS), there is a need to establish acceptable daily intake (ADI) and maximum residue limit (MRL) for veterinary drugs that have been approved a few decades ago in South Korea. On top of that, chronic dietary exposure assessment of veterinary drug residues should be performed to determine whether the use of these veterinary drugs would cause health concerns or not. METHODS AND RESULTS: To establish the ADI, the relevant toxicological data were collected from evaluation reports issued by international organizations. A slightly modified global estimate of chronic dietary exposure (GECDE) model was employed in the exposure assessment owing to the limited residual data. Therefore, only the ADI of ephedrine was established due to insufficient data for the other veterinary drugs. Thus, instead of ADI, the threshold of toxicological concern (TTC) value was used for the other drugs. Lastly, the hazard index (HI) was calculated, except for etizazole hydrochloride, due to the potential of mutagenicity. CONCLUSION(S): The HI values of ephedrine, menichlopholan, and anacolin were found to be as high as 6.4%, suggesting that chronic dietary exposure to the residues from these uses was unlikely to be a public health concern. Further research for exposure assessment of veterinary drug residues should be performed using up-todate Korean national health and nutrition examination survey (KNHANES) food consumption data. In addition, all relevant available data sources should be utilized for identifying the potentials of toxicity.

• 한국엔터테인먼트산업학회논문지
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• 제5권4호
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• pp.147-153
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• 2011

2011년 3월 11일에 일본에서 발생한 대지진은 인적, 물적으로 상당한 피해를 남기게 되었다. 이러한 가운데, 안부 확인 및 피해 복구 과정에서 소셜 미디어가 상당한 활약을 보임으로써 재해 발생 시에 매우 유용한 커뮤니케이션 채널로서 부각되었다. 하지만, 재해 발생의 안전지대라 할 수 없는 우리나라에서는 이러한 재해 발생에 대한 구체적인 대응책이나 체계가 갖추어져 있지 않은 것이 현실이다. 따라서, 본 논문에서는 소셜 미디어 활용에 대한 현황을 알아보기 위하여 외국과 국내의 소셜 미디어 활용 관련 문헌을 조사하고, 이를 기본 재료로 삼아 언제 일어날지 모르는 재해에 대응할 수 있는 소셜 미디어의 이상적인 활용 방안을 도출하고자 한다. 본 연구 결과 도출된 소셜 미디어의 활용 방안을 요약해보면 다음과 같다. 첫째, 기상청이나 소방방재청 등의 관련 기관에서 긴급 상황 시 대국민 의사소통 체계 구축에 활용할 수 있다. 둘째, 유사시 구조 요청이나 물자보급 요청 등 위치 정보를 포함한 다양한 재난 정보서비스 체계 구축에 활용할 수 있다. 마지막으로, 페이스북이나 트위터를 통하여 온라인 기부 서비스가 제공될 수 있다. 본 연구에서 얻어진 결과는 재난 대응 관련 담당자나 연구자들에게 유용한 시사점을 제공한다.

• 지식경영연구
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• 제24권3호
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• pp.1-15
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• 2023

본 논문은 최근 큰 반향을 일으키고 있는 생성형 인공지능 ChatGPT를 연구용으로 사용할 때 고려해야 할 연구윤리의 내용을 살펴본다. ChatGPT와 연구윤리를 직접 연결하는 논의가 많지 않기 때문에, 먼저 연구윤리의 전통적인 주제인 인용과 표절, 위조와 변조, 정당한 저자표기, 연구자 공동체, 연구자의 사회적 책임 등을 차례로 ChatGPT 사용과 연결하여 검토할 것이다. 연구윤리에서 인용이나 정당한 저자 표기를 강조하고 표절이 문제가 되는 원리를 고려할 때, ChatGPT 관련 논의를 허용과 불허, 적발과 처벌의 관점에서만 보는 것은 부적절하고, 기존의 규칙들이 ChatGPT의 작동 방식에 제기하는 근본문제를 직시해야 한다. 이에 따라 연구 목적을 위해서 ChatGPT를 쓸 때에는 일단 그 사실을 최대한 밝히고, 그럼에도 불구하고 해결할 수 없는 문제가 있음을 인식해야 한다. ChatGPT의 장기적인 사용이 연구자 공동체에 미칠 영향과 연구자의 사회적 책임에 대해서도 고민해야 할 부분이 많다. 물론 ChatGPT를 비롯한 생성형 인공지능 기술이 아직 개발 초기 단계에 있는 만큼, 섣부른 결론을 내리는 것은 적절하지 않다. 그러나 신기술과 관련한 연구윤리에 대한 관심이 절실하고, 동시에 ChatGPT와 인공지능 기술의 도래로 근본적인 도전에 직면한 연구의 정의에 대한 연구자들의 논의와 합의가 시도되어야 한다.

• International Journal of Computer Science & Network Security
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• 제23권12호
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• pp.167-174
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• 2023

Electronic educational environments in the conditions of quarantine restrictions of COVID-19 have become a common phenomenon for the organization of distance educational activities. Under the conditions of Russian aggression, Ukrainian proof of their use is unique. The purpose of the article is to analyze the role of electronic educational environments in the process of training applicants for higher education in Ukraine in the realities of a large-scale war. General scientific methods (analysis, synthesis, deduction, and induction) and special pedagogical prognostic methods, modeling, and SWOT analysis methods were used. In the results, the general properties of the Internet educational platforms common in Ukraine, the peculiarities of using the Moodle and Prometheus platforms, and an approximate model of the electronic learning environment were discussed. The reasons for the popularity of Moodle among Ukrainian universities are analyzed, but vulnerable elements related to security are emphasized. It was also determined that the high cost of Prometheus software and less functionality made this learning environment less relevant. The conclusions state that the military actions drew the attention of universities in Ukraine to the formation of their own educational platforms. This is especially relevant for technical and military institutions of higher education.