• 제목/요약/키워드: Possibility

검색결과 20,838건 처리시간 0.047초

원자현미경(AFM)을 이용한 환경오염물질에 노출된 HeLa 세포의 표면변화 연구 (Research of Detection Method for Cytotoxic Effects of Environmental Pollutants Using Atomic Force Microscopy (AFM) in HeLa Cells)

  • 이시원;이수일;최진희
    • Environmental Analysis Health and Toxicology
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    • 제23권1호
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    • pp.47-51
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    • 2008
  • The toxicity of environmental pollutants was measured between a image of the surface topography in HeLa cells using atomic force microscopy for the possibility of toxic effect measurement and environmental monitoring. A image of the surface topography by AFM were estimated as toxic endpoints. The surface topography by AFM was observed a change of the cell surface in the environmental pollutants, but the standard of the measurement requires for the dose-effect degree. The overall results indicate that the possibility of measurement using AFM were confirmed a dose-effect degree related toxic effects, but it requres correlation between more various biomarker and AFM's measurements if the possibility of the toxic effect measurement was established.

생체모방 종이구동기의 원리 및 응용 가능성 (Electroactive Paper Actuator: Principle and Its Application Possibility)

  • 윤성률;정우철;강유근;김재환
    • 제어로봇시스템학회논문지
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    • 제10권11호
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    • pp.971-975
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    • 2004
  • This paper deals with the idea of Electroactive paper (EAPap) actuator and its application possibility. EAPap is a paper that produces large displacement under electrical excitation. EAPap is made with a cellulose paper by constructing thin electrodes on both sides of the paper. When electrical voltage is applied on the electrodes, the EAPap produces bending displacement. EAPap has merits in terms of lightweight, dryness, large displacement output, low actuation voltage and low power consumption. Since the power requirement is so small that it is suitable for microwave-driven smart actuators. This paper describes the working principle and performance of EAPap as an artificial muscle and its possibility far many applications.

제한조건을 이용한 주택 평면 설계 지식베이스시스템 개발에 관한 연구 (A Study on the Development of Knowledge-based System for Residential Design using Constraints)

  • 조용호
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 1995년도 학술발표대회논문집 하
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    • pp.85-93
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    • 1995
  • Recently, the development of Artificial Intelligence(AI) and Expert System has caused some interest in the possibility of developing an intelligent CAD system. However, these development and possibility are in an extremenly early stage for Architectural design. In this study, the design process of Residence being recognized as a Constraints-satisfied model, a part of these constraints used in the Architectural design of Residence are being systematized and sorted by the design process. Those regulations and planning items to be considered in the basic planning stage are being systematized as a knowledge base system. The possibility of this knowledge-based system as an effective design tool is studied and an integrated form of Architectural design system is proposed.

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절리 간격이 암반 사면의 안정성에 미치는 영향 (Influence of Joint Spacing to Rock Slope Stability)

  • 윤운상;권혁신;김정환
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2000년도 가을 학술발표회 논문집
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    • pp.511-518
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    • 2000
  • Characteristics of joint orientation, length, spacing and their distribution are very important factors for slope stability, Especially, the effect of joint spacing is an essential factor of slope stability. This study is to analyze the effect of joint spacing in cases of sliding and toppling, which is a typical failure mode. Joint spacing can divided into vertical spacing(spacing) and horizontal spacing(gap). And then, the spacing/length ratio of joint directly affect rock slope failure. When the ratio is below 0.05, the possibility of failure is rapidly increased. In case of toppling, the possibility of failure depends on the ratio of spacing to height of slope ratio slope. As the ratio decreases, the possibility of toppling failure increased. The critical ratio of spacing to height of slope is determined by the dip angle of the slope and the orientation of joint sets.

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폐콘크리트 미분말을 이용한 재생시멘트의 화학적 특성 (Chemical Properties of Recycled Cement using Cementitious Powder from Waste Concrete)

  • 강동우;한창우;안재철;박동천;강병희
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2011년도 추계 학술논문 발표대회
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    • pp.39-40
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    • 2011
  • This study is to analyse possibility cementitious powder from waste concrete as row material of recycled cement. From the results, we ascertained possibility as recycled cement through XRF & XRD of cementitious powder & recycled cement. As a result of the experiment, cementitious powder from waste concrete, which appeared to recovery hydration chemically at the calcining temperature of 700, suggested highly possibility as recycled cement.

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혼화재로서 천연제올라이트 및 이암의 활용성 검토에 관한 연구 (The Investigation for the Possibility to Utility on the Natural Zeolite and Mud Stone as Admisxture)

  • 김화중;김태섭;박정민;한종훈
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 1993년도 가을 학술발표회 논문집
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    • pp.167-172
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    • 1993
  • In domestic, there are not adequate admixtures for concrete now, so the study on that is required deeply, Accordingly the purpose of this study is to analyze the application possibilities of Natural Zeolite and Mud Stone as admixtures for concrete through comparing the compressive strength prorerties of mortar mixed with imported Silica Fume those mixed with domestic Zeolite and Mud Stone. As the results from this study, the optimum displacement rate of Silica Fume, Zeolite and Mud Stone is 15%, 5~10%, 15% respectively. In Zeolite and Mud Stone, the compressive strength is higher in proportion as the powder is fine. Consequentely, the application possibility the application possibility of Zeolite and Mud Stone is very sufficient as admixtures for concrete.

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철도차량의 진동과 변위로부터 유추할 수 있는 탈선가능성에 관한 연구 (A Study on Derailment Possibility that can Analogize from Vibration and Displacement of Rolling Stocks)

  • 홍용기;함영삼
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2007년도 춘계학술대회 논문집
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    • pp.743-748
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    • 2007
  • The important factor to evaluate the running safety of a railway vehicle would be the interaction force between wheel and rail(derailment coefficient), for which is one of important factors to check the running safety of a railway vehicle that may cause a tragic accident. Especially, a newly developed vehicle that first runs commercially requires necessarily the measurement and evaluation of derailment coefficient for securing the safety of a vehicle while measuring the derailment coefficient in view of securing running safety could be the more important factor than any other factors. In this paper, examined possibility that can forecast derailment possibility to behavior of only vibration and displacement by measuring vibration acceleration and displacement in vehicles that travel actuality rail track, and compares with data of wheel load/lateral force result.

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해외수출을 위한 주요 요인들과 중소기업의 해외수출 가능성에 관한 연구 (Research Related to the Main Factors for Export and SME's Export Possibility)

  • 정호진;임용석
    • 수산해양교육연구
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    • 제29권1호
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    • pp.118-127
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    • 2017
  • The aim of the present study is to research how the main factors for the export of SMEs affect SME's Export possibility in structural method. 62 SMEs in Busan Region were participated in this study. For the empirical analysis, a multiple regression analysis and a path analysis were used with Spss18 and Amos 5v to figure out the relationship between the main factors and SME's Export possibility(SEP). The main factors as variances are "Manpower Needs(MN)", "Technology Innovation Needs(TIN)", "Education Needs for Export(ENE)" and "Intention of Decision-Maker(IDM)". The result indicated that ENE and TIN with IDM could structurally affect SEP through path analysis and implies that the main factors have to be considered with the intention of decision-maker as CEO for the successful export of SMEs.

아동의 물리적 불가능 현상 인지의 연령 차이 (Children's Cognition of Televised Physically Impossible Events)

  • 이순형;조희정
    • 아동학회지
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    • 제24권1호
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    • pp.61-76
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    • 2003
  • This study investigated children's cognition of physically impossible televised events by age and types of tasks. The 67 subjects were 3-, 5-, and 7-year-old children from 1 day care center and 1 elementary school in Seoul. Children's responses were taped and transcribed. Cognition about the events were measured by recognition of impossibility, possibility of replication, and reasons for the possibility of replication of the events. Data were analysed by ANOVA(repeated measure) and $Scheff{\acute{e}}$ test. Children's cognitions about the events varied by age groups. Three-year-old children's recognition of the 3 tasks was different from that of the 5-and 7-year-old children; while 3-year-olds interpreted the events on TV as real, 5- and 7-year-olds considered them to be unreal.

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정합 문제 해결을 위한 가능도 기반의 이완 처리 알고리즘 (Relaxation algorithm to solve correspondence problem based on possibility distribution)

  • 한규필;김용석;박영식;송근원;하영호
    • 전자공학회논문지S
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    • 제34S권9호
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    • pp.109-117
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    • 1997
  • A new relaxation algorithm based on distribution of matched errors and possibility is proposed to solve efficiently correspondence problem. This algorithm can be applied to various method, such as BMA, feature-, and region-based matching methods, by modifying its smoothness function. It consists of two stages which are transformation and iteration process. In transformation stage, the errors obtained by any matching algorithm are transformed to possibility values according to these statistical distribution. Each grade of possility is updated by some constraints which are defined as smoothness, uniqueness, and discontinuity factor in iteration stage. The discontinuity factor is used to reserve discontinuity of disparity. In conventional methods, it is difficult to find proper weights and stop condition, because only two factors, smoothness and uniqueness, have been used. However, in the proposed mthod, the more smoothing is not ocurred because of discontinuity factor. And it is efective to the various image, even if the image has a severe noise and repeating patterns. In addition, it is shown that the convergence rate and the quality of output are improved.

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