• 제목/요약/키워드: information behaviour

검색결과 427건 처리시간 0.036초

시각적 프로토콜 분석법을 이용한 건축디자인의 시각정보처리 과정 및 행위 특성 분석 (The Visual Information Processing and the Characteristics of Behaviour of the Architectural design Process Using Visual Protocol Analysis)

  • 김용일
    • 한국실내디자인학회논문집
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    • 제19호
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    • pp.53-58
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    • 1999
  • The goal of this paper is to understand the visual information process and the characteristics of behaviour of the architectural design process using visual protocol analysis through the actual experiment by the architect. The visual protocol analysis is developed on the basis of the theories of the visual information processing model and visual mental image, which can explain visual representation in architectural design process. A protocol study is reported in which the experimental data by architect is analyzed through the protocol analysis method. The whole design process is divided into the stage of 9 tasks which are classified into 18 visual representatiov. The results about visual cognition in cognitive science are reviewed and summarized, and these findings will help understand the architectural design nature.

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A Unified Trust Model for Pervasive Environments - Simulation and Analysis

  • Khiabani, Hamed;Idris, Norbik Bashah;Manan, Jamalul-Lail Ab
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제7권7호
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    • pp.1569-1584
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    • 2013
  • Ubiquitous interaction in a pervasive environment is the main attribute of smart spaces. Pervasive systems are weaving themselves in our daily life, making it possible to collect user information invisibly, in an unobtrusive manner by known and even unknown parties. Huge number of interactions between users and pervasive devices necessitate a comprehensive trust model which unifies different trust factors like context, recommendation, and history to calculate the trust level of each party precisely. Trusted computing enables effective solutions to verify the trustworthiness of computing platforms. In this paper, we elaborate Unified Trust Model (UTM) which calculates entity's trustworthiness based on history, recommendation, context and platform integrity measurement, and formally use these factors in trustworthiness calculation. We evaluate UTM behaviour by simulating in different scenario experiments using a Trust and Reputation Models Simulator for Wireless Sensor Networks. We show that UTM offers responsive behaviour and can be used effectively in the low interaction environments.

Investigation on the Corrosion Behaviour of Weld Structure

  • Kim, Hwan Tae;Kil, Sang Cheol;Hwang, Woon Suk;Cho, Won-Seung
    • Corrosion Science and Technology
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    • 제6권1호
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    • pp.33-35
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    • 2007
  • Welding technology plays an important role in the fabrication of structure, and this has led to an increasing attention in the use of high quality advanced welding technology such as power beam welding, friction stir welding, and laser-arc hybrid welding, etc. At the same time, welding can influence various factors in the performance of plant and equipment, and corrosion behaviour of weldment has been one of the major issues for both welding and corrosion research engineers. The aim of this paper is to give a short survey of the recent technical trends of welding and corrosion behaviours including the electrochemical corrosion, stress corrosion cracking, and corrosion fatigue in connection with the welding materials, welding process, and welding fabrication.

The Effects of the Talent Types on Purchasing Behavior of Beauty-Service products

  • Koo, In-Sook
    • 패션비즈니스
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    • 제16권3호
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    • pp.45-62
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    • 2012
  • This study aims to examine the effect of talent types on the purchasing behaviour of beauty-service products in 367 adults(female and male). The present study is the first to consider both talent types and the purchasing behaviour of beauty-service products correlates to appearance management behaviour. Frequency analysis showed that the mean of 8 talent types of 367 participants was 3.324. The highest talent type of 367 participants was interpersonal talent, the lowest talent type was logical-mathematical talent among 8 talent types. There were statistically significant relationships between the talent types(specially, bodily-kinesthetic talent and interpersonal talent) and the purchasing criteria of beauty-service products on the correlation analysis. And the effects of 8 talent types on the purchasing frequency of 4 beauty-service products were significant on the regression analysis, specifically, the results showed that the most significant among 8 talent factors was the interpersonal talent, next, the bodily-kinesthetic was. Thus, the more purchasing frequency of beauty-services products, the higher interpersonal talent were, and the better affinity with others were. As a results, the interpersonal talent factor and bodily-kinesthetic talent factor among 8 talent factors were ultimately affecting the appearance management behaviour. The higher the score, it was concluded that the subject was more active in beauty-related behavior. Conclusively, the appearance is a form of personal asset for one's self-fulfillment, and strong and beautiful appearance is a medium to improve self-esteem and dominance. It is possessing a significant influence in personal satisfaction, self-identity, and social success.

An experimental study of the behaviour of double sided welded plate connections in precast concrete frames

  • Gorgun, Halil
    • Steel and Composite Structures
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    • 제29권1호
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    • pp.1-22
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    • 2018
  • Multi-storey precast concrete skeletal structures are assembled from individual prefabricated components which are erected on-site using various types of connections. In the current design of these structures, beam-to-column connections are assumed to be pin jointed. Welded plate beam to-column connections have been used in the precast concrete industry for many years. They have many advantages over other jointing methods in component production, quality control, transportation and assembly. However, there is at present limited information concerning their detailed structural behaviour under bending and shear loadings. The experimental work has involved the determination of moment-rotation relationships for semi-rigid precast concrete connections in full scale connection tests. The study reported in this paper was undertaken to clarify the behaviour of such connections under symmetrical vertical loadings. A series of full-scale tests was performed on sample column for which the column geometry and weld arrangements conformed with successful commercial practice. Proprietary hollow core slabs were tied to the beams by tensile reinforcing bars, which also provide the in-plane continuity across the connections. The strength of the connections in the double sided tests was at least 0.84 times the predicted moment of resistance of the composite beam and slab. The secant stiffness of the connections ranged from 0.7 to 3.9 times the flexural stiffness of the attached beam. When the connections were tested without the floor slabs and tie steel, the reduced strength and stiffness were approximately a third and half respectively. This remarkable contribution of the floor strength and stiffness to the flexural capacity of the joint is currently neglected in the design process for precast concrete frames. In general, the double sided connections were found to be more suited to a semi-rigid design approach than the single sided ones. The behaviour of double sided welded plate connection test results are presented in this paper. The behaviour of single sided welded plate connection test results is the subject of another paper.

저수변화에 따른 사력댐의 거동 연구 (A Study on the Behaviour of an Earth and Rockfill Dam Due to Reservoir Water)

  • Shin, Jong-Ho
    • 한국지반공학회논문집
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    • 제19권6호
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    • pp.61-70
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    • 2003
  • 사력댐은 점토부터 사석에 이르는 다양하고 복합적인 재료로 구성되어 있고, 이에 따른 제체의 투수성 차이 등으로 인해 건설 후의 거동양상은 아주 복잡하게 나타난다. 특히, 건설 이후 계절적 강우 차이로 야기되는 수위변화는 댐의 거동변화를 야기하며, 이런 특성들은 결과적으로 건설 후 댐 거동의 정형화를 어렵게 한다. 건설 후 댐의 거동은 저수위의 변화, 제체침투 등으로 인해 시간 의존적이며 이러한 거동이 건설 후 댐의 열화현상과 어떠한 관계가 있는가를 조사해보는 것은 중요한 의미가 있다. 건설 후 댐 거동정보는 댐 관리는 물론 설계에도 아주 유용한 정보로써 활용될 수 있다. 본 연구에서는 건설 후 발생 가능한 다양한 수위변화조건을 담수, 수위하강, 반복수위의 형태로 이상화하고, 수위변화속도에 따른 시간의존성 거동을 모델링하기 위하여 변위-간극수압의 결합방정식을 이용한 유한요소 해석을 수행하였다. 해석결과는 하중전이, 수압할렬의 가능성, 응력경로 변화 등의 관점에서 분석하였다. 본 연구결과로부터 실제 댐파괴 사례로부터 발견되는 지반공학적 문제에 대한 정량적 이해와 건설 후 댐관리에 있어 댐에 잔존하는 역학적 능력을 고려하여 수위를 제어하는 것이 중요함을 확인하였다.

Predictors of Re-participation in Faecal Occult Blood Test-Based Screening for Colorectal Cancer

  • Cole, Stephen R.;Gregory, Tess;Whibley, Alex;Ward, Paul;Turnbull, Deborah;Wilson, Carlene;Flight, Ingrid;Esterman, Adrian;Young, Graeme P.
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권12호
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    • pp.5989-5994
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    • 2012
  • Background: There is little information on longitudinal patterns of participation in faecal occult blood test (FOBT) based colorectal cancer (CRC) screening or on demographic or behavioural factors associated with participation in re-screening. The lack of an agreed system for describing participatory behaviour over multiple rounds also hampers our ability to report, understand and make use of observed associations. Our aims were to develop a system for describing patterns of participatory behaviour in FOBT-based CRC screening programs and to identify factors associated with particular behavioural patterns. Methods: A descriptive framework was developed and applied to a data extract of screening invitation outcomes over two rounds of the NBCSP. The proportion of invitees in each behaviour category was determined and associations between behaviour patterns and demographic and program factors were identified using multivariate analyses. Results: We considered Re-Participants, Dropouts, Late Entrants and Never Participants to be the most appropriate labels for the four possible observed participatory categories after two invitation rounds. The screening participation rate of the South Australian cohort of the NBCSP remained stable over two rounds at 51%, with second round Dropouts (10.3%) being balanced by Late Entrants (10.5%). Non-Participants comprised 38.7% of invitees. Relative to Re-Participants, Dropouts were older, more likely to be female, of lower SES, had changed their place of residence between offers had a positive test result in the first round. Late Entrants tended to be in the youngest age band. Conclusions: Specific demographic characteristics are associated with behavioural sub-groups defined by responses to 2 offers of CRC screening. Targeted group-specific strategies could reduce dropout behaviour or encourage those who declined the first invitation to participate in the second round. It will be important to keep first round participants engaged in order to maximise the benefit of a CRC screening program.

An experimental study of the behaviour of double sided bolted billet connections in precast concrete frames

  • Gorgun, Halil
    • Steel and Composite Structures
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    • 제29권5호
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    • pp.603-622
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    • 2018
  • Precast concrete structures are erected from individual prefabricated components, which are assembled on-site using different types of connections. In the present design of these structures, beam-to-column connections are assumed pin jointed. Bolted billet beam to-column connections have been used in the precast concrete industry for many years. They have many advantages over other jointing methods in component production, quality control, transportation and assembly. However, there is currently limited information concerning their detailed structural behaviour under vertical loadings. The experimental work has involved the determination of moment-relative rotation relationships for semi-rigid precast concrete connections in full-scale connection tests. The study reported in this paper was undertaken to clarify the behaviour of such connections under symmetrical vertical loadings. A series of full-scale tests was performed on sample column for which the column geometry and bolt arrangements conformed to successful commercial practice. Proprietary hollow core floor slabs were tied to the beams by 2T25 tensile reinforcing bars, which also provide the in-plane continuity across the connections. The contribution of the floor strength and stiffness to the flexural capacity of the joint is currently neglected in the design process for precast concrete frames. The flexural strength of the connections in the double-sided tests was at least 0.93 times the predicted moment of resistance of the composite beam and slab. The secant stiffness of the connections ranged from 0.94 to 1.94 times the flexural stiffness of the attached beam. In general, the double-sided connections were found to be more suited to a semi-rigid design approach than the single sided ones. The behaviour of double sided bolted billet connection test results are presented in this paper. The behaviour of single sided bolted billet connection test results is the subject of another paper.

Physics-based modelling and validation of inter-granular helium behaviour in SCIANTIX

  • Giorgi, R.;Cechet, A.;Cognini, L.;Magni, A.;Pizzocri, D.;Zullo, G.;Schubert, A.;Van Uffelen, P.;Luzzi, L.
    • Nuclear Engineering and Technology
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    • 제54권7호
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    • pp.2367-2375
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    • 2022
  • In this work, we propose a new mechanistic model for the treatment of helium behaviour at the grain boundaries in oxide nuclear fuel. The model provides a rate-theory description of helium inter-granular behaviour, considering diffusion towards grain edges, trapping in lenticular bubbles, and thermal resolution. It is paired with a rate-theory description of helium intra-granular behaviour that includes diffusion towards grain boundaries, trapping in spherical bubbles, and thermal re-solution. The proposed model has been implemented in the meso-scale software designed for coupling with fuel performance codes SCIANTIX. It is validated against thermal desorption experiments performed on doped UO2 samples annealed at different temperatures. The overall agreement of the new model with the experimental data is improved, both in terms of integral helium release and of the helium release rate. By considering the contribution of helium at the grain boundaries in the new model, it is possible to represent the kinetics of helium release rate at high temperature. Given the uncertainties involved in the initial conditions for the inter-granular part of the model and the uncertainties associated to some model parameters for which limited lower-length scale information is available, such as the helium diffusivity at the grain boundaries, the results are complemented by a dedicated uncertainty analysis. This assessment demonstrates that the initial conditions, chosen in a reasonable range, have limited impact on the results, and confirms that it is possible to achieve satisfying results using sound values for the uncertain physical parameters.

Failure mechanisms of hybrid FRP-concrete beams with external filament-wound wrapping

  • Chakrabortty, A.;Khennane, A.
    • Advances in concrete construction
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    • 제2권1호
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    • pp.57-75
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    • 2014
  • This paper presents an analysis of the results of an experimental program on the performance of a novel configuration of a hybrid FRP-concrete beam. The beam section consists of a GFRP pultruded profile, a CFRP laminate, and a concrete block all wrapped up using filament winding. It was found that the thickness of the concrete block and the confinement by the filament-wound wrapping had a profound effect on the energy dissipation behaviour of the beam. Using a shear punching model, and comparing the predicted results with the experimental ones, it was found that beyond a given value of the concrete block thickness, the deformational behaviour of the beam shifts from brittle to ductile. It was also found that the filament-wound wrap had many benefits such as providing a composite action between the concrete block and the GFRP box, improving the stiffness of the beam, and most importantly, enhancing the load carrying ability through induced confinement of the concrete.