• 제목/요약/키워드: research methods and methodologies

검색결과 380건 처리시간 0.032초

도메인 온톨로지 구축에 관한 연구 (A Study on Comprehensive Domain Ontology Methodology)

  • 유해도;신주현;김판구
    • 한국정보처리학회:학술대회논문집
    • /
    • 한국정보처리학회 2005년도 춘계학술발표대회
    • /
    • pp.651-654
    • /
    • 2005
  • Ontology developing process has aroused a lot of controversy among knowledge engineers and knowledge users. The recent surges on ontology building methodologies and practical ontology applications have explored a broad spectrum of knowledge management challenges. On the one hand, the abundant methodology theories provide us with a set of useful heuristic rules, from which we get the overview of ontology building process. But on the other hand, every research groups would like to justify their theories by listing their specific characteristics and unique method when approaching the right way. However, there is still no one “correct” way or methodology for developing ontologies. In this case, the methods used to evaluate only a subset of specific domain do not make any sense to the commonsense users. As a result, a comprehensive understanding of domain ontology is urgent and necessary.

  • PDF

C-뉴크레오사이드의 화학합성 (The Chemical Syntheses of C-Nucleosides)

  • 천문우;김중협;와따나베 에이 쿄오이치
    • 약학회지
    • /
    • 제35권6호
    • /
    • pp.530-554
    • /
    • 1991
  • The synthetic methodologies for the preparation of C-nucleosides are divided into four categories, and each category is discussed in details. The chemical rections which lead to other C-nucleosides from preformed the natural product pseudouridine are described first, followed by synthesis of C-nucleosides by condensation of pre-formed heterocyclic base with sugar, and by construction of heterocyclic base from a carbohydrate intermediate that bear functional carbon fragment at the anomeric position. Finally, methods of total synthesis of C-nucleosides from carbohydrate and achiral starting materials are presented.

  • PDF

연속간행물 평가에 관한 연구 - KINITl 소장 연속간행물을 대상으로 - (A Study on Evaluation of Serials : The Case of KINITI)

  • 신경호
    • 정보관리연구
    • /
    • 제29권4호
    • /
    • pp.23-43
    • /
    • 1998
  • 본 고는 연속간행물 평가방법의 종류와 사례를 살펴보고, KINITl 소장 연속간행물을 이용자의 의견조사법과 비용대효과 분석법을 택하여 평가함으로써 연속간행물 평가시 하나의 지침이 될 수 있는 방법론을 제시하며, 핵심잡지의 성격을 규명함으로써 신규 연속간행물 선정에 참고할 수 있는 자료를 제공하고자 한다.

  • PDF

3D 프린팅 기술의 이해, 유해 인자 노출 평가와 제어 (Understanding Three-dimensional Printing Technology, Evaluation, and Control of Hazardous Exposure Agents)

  • 박지훈;전혜준;오영석;박경호;윤충식
    • 한국산업보건학회지
    • /
    • 제28권3호
    • /
    • pp.241-256
    • /
    • 2018
  • Objectives: This study aimed to review the characteristics of three-dimensional printing technology focusing on printing types, materials, and health hazards. We discussed the methodologies for exposure assessment on hazardous substances emitted from 3D printing through article reviews. Methods: Previous researches on 3D printing technology and exposure assessment were collected through a literature review of public reports and research articles reported up to July 2018. We mainly focused on introducing the technologies, printing materials, hazardous emissions during 3D printing, and the methodologies for evaluation. Results: 3D printing technologies can be categorized by laminating type. Fused deposition modeling(FDM) is the most widely used, and most studies have conducted exposure assessment using this type. The printing materials involved were diverse, including plastic polymer, metal, resin, and more. In the FDM types, the most commonly used material was polymers, such as acrylonitrile-butadiene-styrene(ABS) and polylactic acids(PLA). These materials are operated under high-temperature conditions, so high levels of ultrafine particles(mainly nanoparticle size) and chemical compounds such as organic compounds, aldehydes, and toxic gases were identified as being emitted during 3D printing. Conclusions: Personal desktop 3D printers are widely used and expected to be constantly distributed in the future. In particular, hazardous emissions, including nano sized particles and various thermal byproducts, can be released under operation at high temperatures, so it is important to identify the health effects by emissions from 3D printing. Furthermore, appropriate control strategies should be also considered for 3D printing technology.

전파자원 활용을 위한 인과 관계 기반 정량적 경제 파급 효과 분석모형 비교 연구 (Comparative Study of Causality based quantitative Economic Impact Analysis Models for Utilizing Spectrum Resource)

  • 김태한;김태석
    • 한국콘텐츠학회논문지
    • /
    • 제18권11호
    • /
    • pp.430-446
    • /
    • 2018
  • 본 논문에서는 전파자원 활용과 관련한 정책 및 투자 방안 수립에 대한 경제적 근거 및 기초자료로서의 파급 효과 분석 방법론에 관한 비교연구를 수행하였다. 정책 및 투자 방안 간 객관적 비교 및 선정을 위해 수치적 결과를 제공하는 방법론을 분석 대상으로 하였고 수학적인 모형에 기반을 둔 정량적 방법론인 계량경제모형, 산업연관분석, 연산일반균형, 시스템 다이내믹스 방법에 대해 분석 비용 등 다양한 관점에서 효용과 한계를 비교 분석하였다. 또한, 전파자원 활용의 효과 분석 측면에서 이들 방법론을 비교하고, 분석된 방법론의 장점들을 활용하고 한계를 상쇄시키기 위해 단일 방법론들을 결합한 혼합형 모형에 대한 최근 연구결과를 논의하였다. 연구결과는 전파정책 및 투자 방안 실행의 효율성 검증을 위한 다양한 분석방법 중 분석의 목적과 우선순위에 부합하는 방법을 선정하는 데 참고 지표로 활용할 수 있다.

Innovation Status of Gene Therapy for Breast Cancer

  • Anaya-Ruiz, Maricruz;Perez-Santos, Martin
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제16권9호
    • /
    • pp.4133-4136
    • /
    • 2015
  • Background: To analyze multi-source data including publications and patents, and try to draw the whole landscape of the research and development community in the field of gene therapy for breast cancer. Materials and Methods: Publications and patents were collected from the Web of science and databases of the five major patent offices of the world, respectively. Bibliometric methodologies and technology are used to investigate publications/patents, their contents and relationships. Results: A total of 2,043 items published and 947 patents from 1994 to 2013 including "gene therapy for breast cancer" were retrieved. The top five countries in global publication share were USA, China, Germany, Japan and England. On the other hand, USA, Australia, England, South Korea and Japan were the main producers of patents. The universities and enterprises of USA had the highest amount of publication and patents. Adenovirus- and retrovirus-based gene therapies and small interfering RNA (siRNA) interference therapies were the main topics both in publications and patents. Conclusions: The above results show that global research in the field of gene therapy for breast cancer is increasing and the main participants in this field are USA and Canada in North America, China, Japan and South Korea in Asia, and England, Germany, and Italy in Europe. Also, this article demonstrates the usefulness of bibliometrics to address key evaluation questions and define future areas of research.

한국의 전자정부 연구동향 분석 - 국내 학술지 게재 논문을 중심으로 - (e-Government Research Trend in Korea: A Meta Study)

  • 이영주;강경희;신재우;이중정
    • 정보화정책
    • /
    • 제17권3호
    • /
    • pp.36-56
    • /
    • 2010
  • 한국은 세계적 수준의 전자정부를 구축하면서 전자정부에 대한 학술연구 또한 활발하게 진행되어 왔으나, 그간의 연구동향과 성과를 체계적으로 파악하려는 노력은 미흡하였다. 본 연구에서는 전자정부를 키워드로 하여 국내 등재지 및 등재후보지에 게재된 학술논문을 대상으로 각 논문의 핵심 참조학문, 연구주제, 연구방법론, 지식형성체계 등 전반적 연구 동향에 대한 메타 분석을 실시하였고, 외국의 동향과 비교해 보았다. 분석결과를 종합하여 학문적 정체성, 이론적 성숙도, 실무적 유용성의 세 가지 관점에서 그간의 연구성과를 평가했다. 그 결과, 먼저 한국의 전자정부 연구는 행정학 내의 독립적인 연구 분야로 정체성을 확립해 가고 있으나 주로 경영정보학의 이론을 활용하고 있는 것으로 나타났으며, 학제 간 교류의 지속적인 강화가 요구된다. 다음으로 전자정부의 다양한 주제에 대해 양적인 연구성과를 보여주고 있으나, 연구방법론의 다양화와 이론 개발을 위한 노력 등 질적인 발전을 위한 추가적인 노력이 필요한 것으로 보인다. 마지막으로 그동안 기술적, 사회적 변화에 따라 시의성 있는 연구문제를 다룸으로써 정책적, 실무적 공헌을 해왔으며, 앞으로도 변화하는 전자정부 관련 이슈에 대해 지속적인 연구성과를 보여줄 것을 기대한다.

  • PDF

농촌지역개발컨설팅에 있어서 농촌어메니티 자원정보 요구분석 (Demand Analysis of the Rural Amenity Resources Information in Rural Development Consulting)

  • 배승종;최진용;오윤경;양용석
    • 농촌계획
    • /
    • 제16권3호
    • /
    • pp.77-85
    • /
    • 2010
  • The objective of this study is to analyze demands and important level of rural amenity resources information in rural development consulting. For this study, the questionnaire survey was implemented to regional development consulting companies and organizations with three parts. The first part is about the methodologies in using for the rural development consulting, particularly, the collect processes of the amenity resources information and methods to establish development strategy are included in the questionnaire. In second part, essential factors for constructing the information system of rural amenity resources are investigated. Finally, the rural development project types were classified, and performed an analysis of important level for the rural amenity resources utilizing AHP technique. According to results of this study survey, the demands from residents are the most important factor for establishing rural development plan, and the relationship among neighboring regions and the amounts of rural amenity resources are also considered as important factors. The most important rural amenity resources are different as rural development project types.

Aseismic protection of historical structures using modern retrofitting techniques

  • Syrmakezis, C.A.;Antonopoulos, A.K.;Mavrouli, O.A.
    • Smart Structures and Systems
    • /
    • 제4권2호
    • /
    • pp.233-245
    • /
    • 2008
  • For historical masonry structures existing in the Mediterranean area, structural strengthening is of primary importance due to the continuous earthquake threat that is posed on them. Proper retrofitting of historical structures involves a thorough understanding of their structural pathology, before proceeding with any intervention measures. In this paper, a methodology is presented for the evaluation of the actual state of historical masonry structures, which can provide a useful tool for the seismic response assessment before and after the retrofitting. The methodology is mainly focused on the failure and vulnerability analysis of masonry structures using the finite element method. Using this methodology the retrofitting of historical structures with innovative techniques is investigated. The innovative technique presented here involves the exploitation of Shape Memory Alloy prestressed bars. This type of intervention is proposed because it ensures increased reversibility and minimization of interventions, in comparison with conventional retrofitting methods. In this paper, a case study is investigated for the demonstration of the proposed methodologies and techniques, which comprises a masonry Byzantine church and a masonry Cistern. Prestressed SMA alloy bars are placed into the load-bearing system of the structure. The seismic response of the non-retrofitted and the retrofitted finite element models are compared in terms of seismic energy dissipation and displacements diminution.

다양한 형태의 데이터 입력을 지원하는 AHP 시스템 개발 및 전략적 의사 결정에의 응용 (Development of Various Input Supporting AHP System and Its Application to Strategic Decision Making)

  • 최상현;김진욱;한관희
    • 산업공학
    • /
    • 제24권3호
    • /
    • pp.210-219
    • /
    • 2011
  • The traditional AHP(Analytic Hierarchy Process) is to evaluate subjectively the alternatives in the view point of each of criteria and has been widely used at the fields of real world application. The AHP has some drawbacks that makes it difficult to keep the consistency of decision makers' input and take too long to get accurate results because of requiring lots of pairwise comparison between criteria and alternatives. This research is to propose and develop a Hybrid-AHP system for complementing the critical points of traditional AHP methodologies. This system gets the quantitative information as well as qualitative inputs as the comparative ones between criteria and alternatives. We use the input as various type of information such as quantitative values, 9-scale ratings, and fuzzy-based inputs. Finally, we applied the system to the case of choosing strategic industries. The case study have shown the use of various input methods saves processing time, and reduces the input burden of users.