• Title/Summary/Keyword: science-based technologies

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비소오염지하수의 현장처리기술동향: 리뷰 (Treatment Technologies for Arsenic Removal from Groundwater: review paper)

  • 방선백;최은영;김경웅
    • 자원환경지질
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    • 제38권5호
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    • pp.599-606
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    • 2005
  • 전 세계적으로 수많은 나라의 지하수에 용존 되어있는 비소는 매우 독성이 강한 오염물질이다. 이로 인해서 지하수에 있는 비소를 제거하기 위한 수많은 처리기술들이 개발되고 있다. 미국 환경청에서는 비소를 처리하기 위한 가장 적합한 기술로써 여러 가지의 기술들을 추천하고 있다. 미국 환경청의 분류를 기준으로 비소처리기술은 침전, 멤브레인, 이온교환 및 흡착의 네 가지 처리기술로 나눌 수 있다. 미국에서 최근 $50{\mu}g/L$에서 $10{\mu}g/L$로의 비소 음용수 기준의 개정은 비소오염지하수에 있는 비소를 제거하기 위한 기술의 선택과 적용에 많은 영향을 주고 있다. 침전기술은 비소처리를 위해서 가장 많이 이용되는 기술로 대규모 수처리 설비로 비소를 처리하는데 적용할 수 있는 있지만, 멤브레인, 이온교환 및 흡착기술은 소규모 수처리 시설에 사용된다 최근에 미국과 유럽에서는 설치비와 유지비가 적고 운전이 간편한 흡착기술을 이용한 소규모 비소처리 시설에 많은 관심을 가지고 있는 추세이다 비소로 오염된 지하수를 처리하기 위한 처리기술들의 원리와 비소제거에 영향을 미치는 인자 및 실제 처리시설들의 비소처리효율을 본 논문에서 소개하고자 한다.

IT융합 차세대 농기계 수출전략형 핵심기술 우선순위 선정에 관한 연구 (Study on Priority Selection of Export Strategic Core Technologies for IT Fusion Next Generation Agricultural Machines)

  • 장동일;조병관;이훈수;정선옥;박승제;김철수;이영희
    • Journal of Biosystems Engineering
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    • 제36권6호
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    • pp.491-499
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    • 2011
  • The objective of this study was to develop the export strategic core technologies for IT fusion next generation agricultural machines by the analysis of comprehensive and cooperative systems of industries, universities, and institutes. In order to achieve the objective of this study, an expert panel was formed and operated. The first survey was conducted by the Delphi method. For this the export strategic core technologies were surveyed and analyzed using the questionnaire. Based on the results of the first survey, the second survey was conducted. The questionnaire used for the second survey was designed by results of the first survey. The results of the second survey was analyzed by AHP method. The third survey was conducted based on the second one, and the final results were analyzed and the export strategic core technologies were developed through the expert meeting. The study results showed six export strategic core technologies as the followings : 1) environment-friendly engine technology for high performance 2) high performance/high efficiency power transmission system technology 3) development of measurement system technology for safety of agricultural products 4) field application of sensor networks 5) large size combine development technology for high performance 6) quality evaluation technology for agricultural products.

A Function-Based Knowledge Base for Technology Intelligence

  • Yoon, Janghyeok;Ko, Namuk;Kim, Jonghwa;Lee, Jae-Min;Coh, Byoung-Youl;Song, Inseok
    • Industrial Engineering and Management Systems
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    • 제14권1호
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    • pp.73-87
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    • 2015
  • The development of a practical technology intelligence system requires a knowledge base that structures the core information and its relationship distilled from large volumes of technical data. Previous studies have mainly focused on the methodological approaches for technology opportunities, while little attention has been paid to constructing a practical knowledge base. Therefore, this study proposes a procedure to construct a function-based knowledge base for technology intelligence. We define the product-function-technology relationship and subsequently present the detailed steps for the knowledge base construction. The knowledge base, which is constructed analyzing 1110582 patents between 2009 and 2013 from the United States Patent and Trademark Office database, contains the functional knowledge of products and technologies and the relationship between products and technologies. This study is the first attempt to develop a large-scale knowledge base using the concept of function and has the ability to serve as a basis not only for furthering technology opportunity analysis methods but also for developing practical technology intelligence systems.

Rethinking Borders of National Systems of Innovation:Austrian Perspectives on Korea's Internationalization of Green Technologies

  • Olbrich, Philipp;Witjes, Nina
    • STI Policy Review
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    • 제5권2호
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    • pp.65-95
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    • 2014
  • The recent decades have seen a growing rate of international cooperation in science, technology, and innovation (STI) including in the field of green technologies. However, current approaches to national systems of innovation (NSI) have not kept up with this development. International aspects are rather treated as external conditions within which policymakers operate and respond but not influence. This paper tackles this problem by applying a refined NSI concept that includes an international dimension and complements past frameworks by focusing on those Korean government policies, actors, and activities relevant for the internationalization of STI. Austria and Korea have both formulated differing strategies to acquire international leading positions in the field of innovation and the development of green technologies. In the first step, the paper assesses Korea's international activities within the field of green technologies that transcend national boundaries and establish international connections. The government has still a strong influence on selecting technology areas for strategic funding but our findings show that international STI actors have difficulties in identifying the appropriate point of contact to initiate cooperation or apply for related funding. Second, an external perspective on Korea's international collaborations in the field of green technologies is offered. Austria has tentatively identified the East Asian country as a second-priority cooperation partner for its future STI internationalization activities. Interviews with Austrian stakeholders in the field of green technologies indicate a high interest in cooperation with Korea that is facilitated by a similar business culture based on personal networks. Moreover, researchers and policymakers referred to a shared need of small countries for intelligent decision-making processes regarding potential cooperation partners abroad. However, in order to enhance awareness, visibility and demand for Korean STI cooperation in European countries, more long-term funding programs featuring a more permanent point of contact should be introduced.

과학치안 기반 선제 대응 치안서비스 기술 동향 (Trend of Science Policing-based Preemptive Correspondence Police Service Technology)

  • 박영수;김승희;박원주;백명선;이용태
    • 전자통신동향분석
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    • 제36권5호
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    • pp.74-81
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    • 2021
  • Based on data provided by the science and technology knowledge infrastructure (ScienceON, 2017-2021), this paper reviews the research trends of domestic police services and related technologies, and describes the research and development direction of policing technology. For this purpose, the research was searched using the keywords science policing, smart policing, predictive policing, and policing. Policing technology is used for crime investigation (prevention), such as crime analysis and crime prediction. The collection of related data use urban infrastructure, the processing of data collected using technologies, such as artificial intelligence, and the utilization of data in police services (system) were summarized. In future, on-site support technology and crime investigation (prevention) technology for a preemptive correspondence to social threats and effective police activities must be developed. In addition, the quality of police services should be improved, a system to use police-related data should be developed, and the capabilities of police experts need to be strengthened.

Distribution of ICT and Analysis of the Digital Components of the Quality of Life

  • PANZABEKOVA, Aksanat;KIREYEVA, Anel A.;SATYBADIN, Azimkhan A.;S.SABYR, Nursymbat
    • 유통과학연구
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    • 제18권12호
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    • pp.67-77
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    • 2020
  • Purpose: Based on the author's adapted invariant choice, this study is to present the methodology and the calculation of the integral index of the digital component of the quality of life. By analyzing the digital indexes, the study is also to discuss distribution of ICT and the digital quality of life of the population of Kazakhstan and its regions. Research design, data, methodology: In this research, the method of calculation of integral assessment of the indicator was used, which indicates index constructs. The study analyzed objective secondary data for the period 2017-2019, which was the database from official websites of the Committee on Statistics of the Republic of Kazakhstan. Results: The study produced an integral code for assessing digital components of living standards of the population, consisting of five groups sub-indexes. Conclusions: Based on the provided analyses, we can confirm the existence of a significant difference of all the indicators of digital living standards of the population between the two leading cities: Almaty city and Nur-Sultan city. Furthermore we can deduce the differences of the examined indexes for other regions of Kazakhstan. Despite the rapid adoption of digital technologies, Kazakhstan still has significant digital gaps among cities indicating regional differences in the speed of implementation and distribution of digital technologies.

식물 유전자 연구의 최근 동향 (Current status on plant functional genomics)

  • 조용구;우희종;윤웅한;김홍식;우선희
    • Journal of Plant Biotechnology
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    • 제37권2호
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    • pp.115-124
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    • 2010
  • As the completion of genome sequencing, large collection of expression data and the great efforts in annotating plant genomes, the next challenge is to systematically assign functions to all predicted genes in the genome. Functional genome analysis of plants has entered the high-throughput stage. The generations and collections of mutants at the genome-wide level form technological platform of functional genomics. However, to identify the exact function of unknown genes it is necessary to understand each gene's role in the complex orchestration of all gene activities in the plant cell. Gene function analysis therefore necessitates the analysis of temporal and spatial gene expression patterns. The most conclusive information about changes in gene expression levels can be gained from analysis of the varying qualitative and quantitative changes of messenger RNAs, proteins and metabolites. New technologies have been developed to allow fast and highly parallel measurements of these constituents of the cell that make up gene activity. We have reviewed currently employed technologies to identify unknown functions of predicted genes including map-based cloning, insertional mutagenesis, reverse genetics, chemical mutagenesis, microarray analysis, FOX-hunting system, gene silencing mutagenesis, proteomics and chemical genomics. Recent improvements in technologies for functional genomics enable whole-genome functional analysis, and thus open new avenues for studies of the regulations and functions of unknown genes in plants.

사각형 특징 기반 분류기와 AdaBoost 를 이용한 실시간 얼굴 검출 및 인식 (Real-time Face Detection and Recognition using Classifier Based on Rectangular Feature and AdaBoost)

  • 김종민;이웅기
    • 통합자연과학논문집
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    • 제1권2호
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    • pp.133-139
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    • 2008
  • Face recognition technologies using PCA(principal component analysis) recognize faces by deciding representative features of faces in the model image, extracting feature vectors from faces in a image and measuring the distance between them and face representation. Given frequent recognition problems associated with the use of point-to-point distance approach, this study adopted the K-nearest neighbor technique(class-to-class) in which a group of face models of the same class is used as recognition unit for the images inputted on a continual input image. This paper proposes a new PCA recognition in which database of faces.

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압저항 폴리머형 신소재를 활용한 ICT 융합 기술 (ICT Convergence Technologies based on Piezoresistive Polymer Composite)

  • 장수진;우삼용;양태헌;정진영;황재용
    • 한국컴퓨터정보학회:학술대회논문집
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    • 한국컴퓨터정보학회 2016년도 제53차 동계학술대회논문집 24권1호
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    • pp.137-139
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    • 2016
  • 본 논문에서는 압저항 소재 및 센서 기술과 ICT 응용 기술에 대해 소개한다. 먼저 압저항 소재의 구성 및 작동원리를 소개하고, 한국표준과학연구원에서 개발한 유연한 압저항 센서의 구성과 성능에 대해 기술한다. 또한, 개발된 압저항 센서와 ICT 기술을 융합한 스마트 안전 시스템 및 스마트 창호 침입감지 시스템에 대해 기술한다. 마지막으로, ICT기술을 기반으로 압저항 센서기술이 확장해 나아가야 할 스마트 보안 시스템 개발의 필요성을 기술한다.

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Three-dimensional thermal-hydraulics/neutronics coupling analysis on the full-scale module of helium-cooled tritium-breeding blanket

  • Qiang Lian;Simiao Tang;Longxiang Zhu;Luteng Zhang;Wan Sun;Shanshan Bu;Liangming Pan;Wenxi Tian;Suizheng Qiu;G.H. Su;Xinghua Wu;Xiaoyu Wang
    • Nuclear Engineering and Technology
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    • 제55권11호
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    • pp.4274-4281
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    • 2023
  • Blanket is of vital importance for engineering application of the fusion reactor. Nuclear heat deposition in materials is the main heat source in blanket structure. In this paper, the three-dimensional method for thermal-hydraulics/neutronics coupling analysis is developed and applied for the full-scale module of the helium-cooled ceramic breeder tritium breeding blanket (HCCB TBB) designed for China Fusion Engineering Test Reactor (CFETR). The explicit coupling scheme is used to support data transfer for coupling analysis based on cell-to-cell mapping method. The coupling algorithm is realized by the user-defined function compiled in Fluent. The three-dimensional model is established, and then the coupling analysis is performed using the paralleled Coupling Analysis of Thermal-hydraulics and Neutronics Interface Code (CATNIC). The results reveal the relatively small influence of the coupling analysis compared to the traditional method using the radial fitting function of internal heat source. However, the coupling analysis method is quite important considering the nonuniform distribution of the neutron wall loading (NWL) along the poloidal direction. Finally, the structure optimization of the blanket is carried out using the coupling method to satisfy the thermal requirement of all materials. The nonlinear effect between thermal-hydraulics and neutronics is found during the blanket structure optimization, and the tritium production performance is slightly reduced after optimization. Such an adverse effect should be thoroughly evaluated in the future work.