• 한국실내디자인학회논문집
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• 제29호
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• pp.273-280
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• 2001

In architecture, each project participant must maintain organic relationship with others. However, current practices are rather procedural and discrete than organic, which result in considerable inefficiencies. The cool-downs of Korean construction market also force the architects to be familiar with the new construction methods and systems. This research mainly focuses on the pre-development stage of such systems, analysing relationships between the information of architectural design and other parts of construction information like structure, construction, environment, and so forth. The result of analysis can be organized into attributes of members in a physical building, which can be modeled in a 3D system. The resulting model can be used for automated generation of drawing, Bill of Materials, finite element meshes for structural analysis and energy analysis, etc. by extracting meaningful information from it. Hence, the purpose of this research is to analysis the relationship among domain-specific information (e.g. structural engineering, construction detail, energy evaluation) that are represented in drawings, and to represent the attributes of the information relevantly so that they can be applied to each unit task that forms the whole project. Therefore, an object oriented methodology is introduced to compose design informations in three dimension, and expressing properties of building factors and materials, and to construct a database for computers to recognize architecture informations.

• 예술인문사회 융합 멀티미디어 논문지
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• 제9권10호
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• pp.753-762
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• 2019

특정 분야의 연구나 교육에 있어 1차 사료, 즉 원서의 활용 여부는 매우 중요하다. 원서가 없는 연구는 증명이 어렵고 결국 가설에 머무는 경우가 많다. 특정 지역을 연구하는 지역학에서도 원서의 활용은 중요하다. 그러나 현재 지역학, 특히 서양사에 대한 연구에 있어 원서나 역사기록물은 매우 중요한 자료이긴 하나 물리적 또는 공간적 제약에 의해 이러한 자료를 획득하고 참조하는 것이 어려운 실정이다. 이를 해결하기 위해 고문서를 수집하여 제공하는 방안이 있으나 현재 국내에는 해외 고문서를 웹 시스템으로 제공하는 사례를 찾아보기 힘든 실정이다. 이에 따라 본 논문에서는 고문서 수집의 필요성과 수집 방안, 그리고 수집된 자료를 구조적, 체계적으로 디지털 아카이빙하는 방안을 제시하고자 한다. 이와 관련하여 고문서 아카이브 시스템 및 데이터베이스 설계에 대한 기존의 연구 사례를 살펴보고 기존의 시스템들과 본 연구에서 제시하는 모델링 방법의 차별성을 기술하고자 한다. 또한 검색의 효율성을 높이기 위한 방법으로 데이터베이스 모델링 시 태그 테이블을 추가하는 방안을 제시하고자 한다.

• 한국환경보건학회지
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• 제43권4호
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• pp.307-313
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• 2017

Objectives: Chemicals derived from various environment media contaminates food across the food supply chain. In Korea, levels of contaminants in food have been sporadically measured by monitoring programs of different government agencies. There is difficulty with data compilation and integrated analysis across media. Therefore, the aim of this study was to propose an overall integrated database and analytical platform design for the 'ECO-FOOD NET (Environmental COntaminant reduction platform for FOOD through an interagency collaboration NETwork)', a tool to support the reduction of environmental contaminants in food. Methods: We developed a new data structure and standardized protocols for the compilation of integrated data. In addition, we conducted subject-oriented logical and physical relational database modeling and created the architecture design of the platform. Results: We established a standardized code system related to exposure media and route, analysis method and food matrix. In addition, we designed the seven software modules of 'About the System', 'Introduction to Interagency Work', 'Media-Chemicals Profiles', 'Method Bank', 'Monitoring Data Base', 'Integrated Media Analysis', and 'Risk-Benefit Analysis'. Conclusions: This study will contribute to decision-making as a tool for executing risk management, such as sustainable reduction policies of contaminants in food.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2015년도 제49회 하계 정기학술대회 초록집
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• pp.64-64
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• 2015

Control of plasma processing methodologies can only occur by obtaining a thorough understanding of the physical and chemical properties of plasmas. However, all plasma processes are currently used in the industry with an incomplete understanding of the coupled chemical and physical properties of the plasma involved. Thus, they are often 'non-predictive' and hence it is not possible to alter the manufacturing process without the risk of considerable product loss. Only a more comprehensive understanding of such processes will allow models of such plasmas to be constructed that in turn can be used to design the next generation of plasma reactors. Developing such models and gaining a detailed understanding of the physical and chemical mechanisms within plasma systems is intricately linked to our knowledge of the key interactions within the plasma and thus the status of the database for characterizing electron, ion and photon interactions with those atomic and molecular species within the plasma and knowledge of both the cross-sections and reaction rates for such collisions, both in the gaseous phase and on the surfaces of the plasma reactor. The compilation of databases required for understanding most plasmas remains inadequate. The spectroscopic database required for monitoring both technological and fusion plasmas and thence deriving fundamental quantities such as chemical composition, neutral, electron and ion temperatures is incomplete with several gaps in our knowledge of many molecular spectra, particularly for radicals and excited (vibrational and electronic) species. However, the compilation of fundamental atomic and molecular data required for such plasma databases is rarely a coherent, planned research program, instead it is a parasitic process. The plasma community is a rapacious user of atomic and molecular data but is increasingly faced with a deficit of data necessary to both interpret observations and build models that can be used to develop the next-generation plasma tools that will continue the scientific and technological progress of the late 20th and early 21st century. It is therefore necessary to both compile and curate the A&M data we do have and thence identify missing data needed by the plasma community (and other user communities). Such data may then be acquired using a mixture of benchmarking experiments and theoretical formalisms. However, equally important is the need for the scientific/technological community to recognize the need to support the value of such databases and the underlying fundamental A&M that populates them. This must be conveyed to funders who are currently attracted to more apparent high-profile projects.

• Nuclear Engineering and Technology
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• 제55권9호
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• pp.3164-3182
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• 2023

The CRUD on the fuel cladding under the pressurized water reactor (PWR) operating condition causes several issues. The CRUD can act as thermal resistance and increases the local cladding temperature which accelerate the corrosion process. The hideout of boron inside the CRUD results in axial offset anomaly and reduces the plant's shutdown margin. Recently, there are efforts to revise the acceptance criteria of emergency core cooling systems (ECCS), and additionally require the modeling of the thermal resistance effect of the CRUD during the performance analysis. There is an urgent need for the evaluation of the effect of the CRUD deposition on the cladding heat transfer under PWR operating conditions, but the experimental database is very limited. The experimental facility called DISNY was designed and constructed to analyze the CRUD-related multi-physical phenomena, and the performance analysis of the constructed DISNY facility was conducted. The thermal-hydraulic and water chemistry conditions to simulate the CRUD growth under PWR operating conditions were established. The design characteristics and feasibility of the DISNY facility were validated by the MARS-KS code analysis and separate performance tests. In the current study, detailed design features, design validation results, and future utilization plans of the proposed DISNY facility are presented.

• 근관절건강학회지
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• 제18권2호
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• pp.257-269
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• 2011

Purpose: The purpose of this study was to analyze the effect of aquatic exercise and to identify directions for future research. Methods: Twenty one articles from 2 sites of article database (1990-2010) and 6 from Korean nursing journals were reviewed. Results: There were 20 quasi experimental design and 1 randomized controlled design. Major subjects of research were older women with arthritis. The most common type of exercise was Kim (1994)'s form. The most frequent duration of exercise was over 6 weeks. Outcome measurement was classified to physical and psychosocial variables. For physical outcomes, pain release was found in 13 articles among 15 articles, muscle strength improvement in 5 articles among 10 articles, flexibility improvement in 5 articles among 9 articles, and balance improvement in 3 articles among 6 articles. For psychosocial outcomes, improvement of quality of life was found in 3 articles among 7 articles and self-efficacy improvement in 5 articles among 7 articles. Conclusion : The effect of aquatic exercise over 6 weeks improves the physical and psychosocial functions. It is suggested that meta analysis needs to be done to integrate the various results.

• 한국의류산업학회지
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• 제25권1호
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• pp.1-10
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• 2023

An eco-CMF design process is vital to the sustainable development of fashion products concerning both emotional and physical quality factors, thus extending the use phase of the product life cycle. Life cycle assessment (LCA) is widely used in other fields to evaluate environmental impact; However, the method is rarely adopted in fashion. While cooperating with design, technology, and the users, reflecting the CMF design process is an excellent approach to the sustainable development of fashion products. Moreover, it is likely to evoke favorable reactions in users toward products. Therefore, this study aimed to review the sustainable design strategies associated with CMF in the fashion industry. Using a systematic review, 135 papers that met the inclusion criteria were examined from peer-reviewed journal articles published between 1990 and 2022. They contained specific design processes or tools relevant to eco-CMF design. The search used the Web of Science database. After a rigorous search, the final six peer-reviewed journal articles were selected and underwent thorough content reviews. Then, the CMF design tools and frameworks for eco-design featured in the articles were carefully reviewed and analyzed. Finally, we proposed practical guidelines for the sustainable development of eco-CMF design in the fashion industry. The study outcomes revealed the need for concrete eco-CMF design processes, particularly for fashion products. Furthermore, more active research involving eco-CMF design processes for the sustainable environmental impact of fashion products is required.

• Journal of Biosystems Engineering
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• 제35권5호
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• pp.302-309
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• 2010

Aerial application using an unmanned agricultural helicopter would allow precise and timely spraying. The attitude of a helicopter depends on a number of dynamic variables for roll-balanced flight. Laterally tilting behavior of a helicopter is a physically intrinsic phenomenon while hovering and forwarding. In order to balance the fuselage, the rotor should be counter-tilted, resulting in the biased down-wash. The biased spraying toward right side causes uneven spray pattern. In this study, a raised tail rotor system for the roll-balanced helicopter was studied. Thrust of the tail rotor system was measured and theoretically estimated for the fundamental database of the roll-balanced helicopter design. The estimated tail thrust and roll-moment would be used to design the raising height of tail rotor and roll balancing dynamics. The unmanned agricultural helicopter required the tail rotor thrust of about 39.2 N (4.0 kgf) during hovering with a payload of 235.4 N (24 kgf). A raised tail rotor system would compensate for the physical tilt phenomena. A further attitude control system of helicopter would assist roll-balanced aerial spray application.

• Journal of information and communication convergence engineering
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• 제14권4호
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• pp.258-267
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• 2016

Three-dimensional integrated circuits (3D ICs) experience die-to-die variations in addition to the already challenging within-die variations. This adds an additional design complexity and makes variation estimation and full-chip optimization even more challenging. In this paper, we show that the industry standard on-chip variation (AOCV) tables cannot be applied directly to 3D paths that are spanning multiple dies. We develop a new machine learning-based model and methodology for an accurate variation estimation of logic paths in 3D designs. Our model makes use of key parameters extracted from existing GDSII 3D IC design and sign-off simulation database. Thus, it requires no runtime overhead when compared to AOCV analysis while achieving an average accuracy of 90% in variation evaluation. By using our model in a full-chip variation-aware 3D IC physical design flow, we obtain up to 16% improvement in critical path delay under variations, which is verified with detailed Monte Carlo simulations.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2020년도 제61차 동계학술대회논문집 28권1호
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• pp.187-188
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• 2020

본 논문에서는 한방 8체질 및 신체정보 관련 데이터셋을 바탕으로 개인 맞춤 식품 및 식단을 추천하는 데이터베이스의 설계·구축을 수행한다. 또한 이 시스템을 이용하여 추천된 식품(식단)과 희망하는 지역을 입력했을 때 선별된 음식점 정보를 제공한다. 데이터베이스 생성 프로세스와 수집한 데이터를 통해 데이터베이스 설계, 데이터 수집, 생산 및 처리 예제, 데이터베이스 활용 등에 대해 다양한 방법을 제공한다. 일상생활에서 데이터베이스 시스템을 활용함으로써, 이 시스템은 한의원 또는 전문채널을 통해 알 수 있었던 맞춤 식단 정보를 대중에 공개되어 정보 진입장벽을 낮추고 편의성을 도모한다. 이로써 오늘날 고령 사회에 진입한 대한민국에서 국민들이 건강한 식생활을 지원하여 궁극적으로 국민 건강 증진에 기여한다.