• 제목/요약/키워드: consistent response

검색결과 578건 처리시간 0.027초

국내 재해도에 상응하는 공동구의 지반변위 산정 (Hazard-Consistent Ground Displacement Estimation for Seismic Input of Underground Utility Tunnels in Korea)

  • 김대환;임영우;정연하;이혜린
    • 한국지반공학회논문집
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    • 제37권12호
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    • pp.7-23
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    • 2021
  • 전력, 통신, 상수, 난방, 중수 등의 공급망을 구성하는 지하공동구는 도시기능을 유지하기 위한 핵심 기간망이며, 재난 및 재해로 서비스의 정지 및 일시적 중단이 발생하는 경우 대규모 사회경제적 손실을 가져온다. 본 연구에서는 지중구조물에 대한 개선된 내진설계 및 평가를 위하여 국내 지진환경에 부합하는 지진원 스펙트럼으로부터 대상 지반의 증폭 및 감쇠 효과를 반영한 시나리오 지진에 기반한 지반변위 예측 방법을 제시하였다. 코사인법으로 통용되는 기존의 단순화 가정법 및 지반응답해석과의 비교를 통해서 본 연구가 제시하는 재해도에 상응하는 지반변위 산정방법이 합리적이며 공학 실무에서 충분히 적용 가능한 것을 확인하였다.

만성신부전(慢性腎不全)의 고혈압(高血壓)에서 Furosemide 정주(靜注)에 대(對)한 Renin 반응(反應) (Renin Response to Intravenous Furosemide in Hypertension of Chronic Renal Failure)

  • 최강원
    • 대한핵의학회지
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    • 제12권1호
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    • pp.9-16
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    • 1978
  • It has been suggested that plasma renin activity (PRA) and its response to volume depletion may be abnormal in that it shows little or exaggerated change in patients with chronic renal failure and hypertension. Intravenous furosemide stimulation test was performed in 46 control subjects and 51 patients with chronic renal failure and/or malignant hypertension in order to evaluate PRA response. In contrast to the consistent increase in PRA in control subjects (from $2.5{\pm}1.95\;to\;4.5{\pm}2.51ng/ml/hr$), no consistent increase was observed in patients with chronic renal failure, especially in those who showed favorable response to antihypertensive therapy (from $2.5{\pm}2.21\;to\;2.9{\pm}2.46ng/ml/hr$). But poor responder to antihypertensive treatment showed considerably higher PRA before and after furosemide stimulation (from $4.9{\pm}1.96\;to\;6.4{\pm}1.71ng/ml/hr$) than the responder group did. Moreover, this group seemed to retain the ability to increase PRA in response to intravenous furosemide stimulation. Thus it became apparent that responder group was unable to increase PRA normally in response to furosemide as well as volume depletion, while poor responder seemed to retain that ability. Thus intravenous furosemode may serve as a convenient way to differenfiate those who might be benefited by conservative antihypertensive measures from those who would require more drastic measures such as bilateral nephrectomy for their optimal blood pressure control.

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유압 회로 해석 모듈을 이용한 주파수 응답 해석에 관한 연구 (A Study on Analysis of Frequency Response with Hydraulic Circuit Analysis Module)

  • 전봉근;송창섭;이용주
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1995년도 추계학술대회 논문집
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    • pp.581-584
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    • 1995
  • The frequency response of a electro-hydraulic servo(EHS) system is studied. The frequensy response characteristics of the EHS system obtained by linerization method, nonlinerar simulation method, and experimentation are compared ane another. It is found that the frequency response of the EHS is consistent when input signal applied is very small, but that is deviated as input signal becomes large.

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화자확인에서 일정한 결과를 얻기 위한 빠른 순시 확률비 테스트 방법 (Fast Sequential Probability Ratio Test Method to Obtain Consistent Results in Speaker Verification)

  • 김은영;서창우;전성채
    • 말소리와 음성과학
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    • 제2권2호
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    • pp.63-68
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    • 2010
  • A new version of sequential probability ratio test (SPRT) which has been investigated in utterance-length control is proposed to obtain uniform response results in speaker verification (SV). Although SPRTs can obtain fast responses in SV tests, differences in the performance may occur depending on the compositions of consonants and vowels in the sentences used. In this paper, a fast sequential probability ratio test (FSPRT) method that shows consistent performances at all times regardless of the compositions of vocalized sentences for SV will be proposed. In generating frames, the FSPRT will first conduct SV test processes with only generated frames without any overlapping and if the results do not satisfy discrimination criteria, the FSPRT will sequentially use frames applied with overlapping. With the progress of processes as such, the test will not be affected by the compositions of sentences for SV and thus fast response outcomes and even consistent performances can be obtained. Experimental results show that the FSPRT has better performance to the SPRT method while requiring less complexity with equal error rates (EER).

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The Impact of Omnichannel Shopping Experience and Channel Integration on Customer Retention: Empirical Evidence from China

  • WANG, Junbin;JIANG, Xinyu
    • The Journal of Asian Finance, Economics and Business
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    • 제9권2호
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    • pp.229-242
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    • 2022
  • Creating a new retailing environment to meet the seamless experience requirements of consumers is a challenge for Omnichannel-related businesses. Based on the "appraisal-emotion-response" chain, the purpose of this research is to explore the psychological mechanism of omnichannel integration influencing customer retention and the moderating effect of customer showrooming experience. This research uses a structural equation model in partial least square software to analyze a two-stage survey (Study 1: n = 210; Study 2: n = 342) conducted in China. The results show that channel control experience has three dimensions: perceived channel attribute familiarity, channel type matching, and cross-channel access convenience; consistent interactive experience has two dimensions: information cross-channel consistency and cross-channel service support. Furthermore, both channel control experience and consistent interactive experience are favorable for customer retention through increased customer satisfaction (transactional and retailer satisfaction). Finally, customer showrooming experience positively moderates the relationship between consistent interactive experience and customer satisfaction. This research proposes a self-regulation process model to explain how omnichannel integration enhances consumers' experience, finally leading to consumer retention. The findings contribute to the omnichannel retail business literature and provide management implications for Asian retailers to implement an omnichannel business strategy.

과학적 증거 자료에 대한 아동들의 반응유형 경향성 (The Tendency of Children's Response on Scientific Evidence Materials)

  • 이용경;양일호;김진수
    • 한국초등과학교육학회지:초등과학교육
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    • 제24권4호
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    • pp.443-451
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    • 2005
  • This study was designed to investigate children's response types, which are always consistent when they meet with different evidence materials. The participants in this study were 119 students of 6th grade in elementary school, who were acquainted with evidence materials presented and able to state logically. Evidence materials were constructed on the main subjects of a cause of the dinosaur extermination and a purpose of the astronomical observatory establishment. The criteria, 'whether or not believe evidence materials presented', 'whether or not believe evidence materials newly presented', 'where or not decrease their belief in the preinstructional evidence materials', and 'whether or not change their belief' were used to classify the type of their responses. So the students' responses to the evidence materials were classified into low types: rejection, reinterpretation, belief decrease, and valuation by evidences. Only about a third of them was also consistent with response types, but the others showed individually different responses to new evidence materials. The types of belief decrease and valuation by evidences were relatively below, while those of the rejection and reinterpretation were likely to represent them again, and these results did not reflect a meaningful difference between male and female. These results show that children's response type are not always coherent, and that they respond variously according to the evidence materials except for an individual cognitive view and a background in estimating evidence materials, and most of them are contents dependent in evaluating evidences. Therefore we are expected to apply it to studies on a thought process of the student as data on the basis of them and develop more various evidence materials responded by basis on evidence.

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A Recursive Method of Transforming a Response Variable for Linearity

  • Seo, Han-Son
    • Communications for Statistical Applications and Methods
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    • 제5권2호
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    • pp.297-306
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    • 1998
  • We consider a graphical method for visualizing the strictly monotonic transformation of t(y) so that the regression function E(t(y)$\mid$x) is linear in the predictor vector x. Cook and Weisberg (1994) proposed an inverse response plot which relies on the results of Li & Duan (1989) to obtain consistent estimates. Based on the recursive addition of the results from the two dimensional plots, we propose a new procedure which can be used when the consistency result is in doubt.

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Robust FIR filter for Linear Discrete-time System

  • Quan, Zhong-Hua;Han, Soo-Hee;Kwon, Wook-Hyun
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2005년도 ICCAS
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    • pp.2548-2551
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    • 2005
  • In this paper, a robust receding horizon finite impulse response(FIR) filter is proposed for a class of linear discrete time systems with uncertainty satisfying an integral quadratic constraint. The robust state estimation problem involves constructing the set of all possible states at the current time consistent with given system input, output measurements and the integral quadratic constraint.

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실내환경 이미지가 점포선택 행동에 미치는 영향에 관한 연구 -신도시 근린형 백화점의 주요용공간 사용자를 중심으로- (A Study on the Relation between the Store Choice Behavior and the interior Environmental Image -Focused on the users of major public space in shopping centers-)

  • 박진배;김주원
    • 한국실내디자인학회논문집
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    • 제16호
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    • pp.161-167
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    • 1998
  • The Study to verify the relations between the store choice behavior and the interior environmental image. the point of view is that the image of store affects the behavior of customers when they choose the store for shopping. The method used for this study is library survey for constructing the store choice model and the field survey for veryfying the model. The store choice behavior of customers occurs according to the procedure : environment exposure-development of cognitive structure-image developing by the emotional response-attitude decision- purchasing. The image of a store is one of the very important elements in marketing stragy. The group which showed the affirmative response to the emvironmental design aspects also showed the high affirmative response to the store image. The group which showed consistent response to the image of store and the image of him/herself showed more affirmative response to the environmental design aspects. Good image to a store affects affirmative attitude of customers and it consequently the store choice behavior

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언커플 시스템의 모우드 분석 연구 (Mode Analysis of Uncoupled System)

  • 김종도;윤문철;김선진;양보석
    • 한국기계가공학회지
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    • 제9권3호
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    • pp.35-41
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    • 2010
  • In this study, a mode analysis of uncoupled system was discussed using FRF. The eigen-mode range of FRF analysis is consistent with conventional FFT in spectrum. Also, the numerical response of second order uncoupled system was obtained using the Runge-Kutta Gill method. The displacement, velocity and acceleration response were calculated after numerical analysis and its response was used for the calculation of FRF for uncoupled system. Using the separated and mixed response of 1st and 2nd mode in example, its FRF was analysed for the prediction of the uncoupled systems and its mode shape was calculated by solving the eigen problem.