• 제목/요약/키워드: PLS

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Phalloides 증후군에서 혈역학적 보조를 위해 T-PLS를 사용한 1례 (A Case of Phalloides Syndrome where T-PLS(R)was used for Hemodynamic Support)

  • 김성춘;김규석;서길준
    • 대한임상독성학회지
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    • 제2권2호
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    • pp.133-136
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    • 2004
  • Phalloides syndrome has usually occurred after incidental mushroom ingestion. It is sometimes difficult to differentiate toxic mushrooms from edible ones, especially in lay person because of their morphological similarities. In Korea, Amanita virosa and Amanita subjunquillea have been reported as a cause of fulminant hepatic failure in mushroom poisoning (phalloides syndrome). We report a case of phalloides syndrome who came to death with fulminant hepatic failure even though we planned liver transplantation and used T-PLS(R) (Twin Pulse Life Support) for hemodynamic support while waiting for the donor.

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브랜드 선택확률 분석을 위한 구조방정식 모형 (Estimation of a Structural Equation Model Including Brand Choice Probabilities)

  • 이상호;이혜선;김윤대;전치혁
    • 대한산업공학회지
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    • 제36권2호
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    • pp.87-93
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    • 2010
  • The partial least squares (PLS) method is popularly used for estimating the structural equation model, but the existing algorithm may not be directly implemented when probabilities are involved in some constructs or manifest variables. We propose a structural equation model including the brand choice as one construct having brand choice probabilities as its manifest variables. Then, we develop a PLS-based algorithm for the structural equation model by utilizing the multinomial logit model. A case is introduced as an application and simulation studies are performed to validate the proposed algorithm.

토마토 반사광과 투과광 스펙트럼 분석에 의한 경도 예측 성능 비교 (Comparison of Performance of Models to Predict Hardness of Tomato using Spectroscopic Data of Reflectance and Transmittance)

  • 김영태;서상룡
    • Journal of Biosystems Engineering
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    • 제33권1호
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    • pp.63-68
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    • 2008
  • This study was carried out to find a useful method to predict hardness of tomato using optical spectrum data. Optical spectrum of reflectance and transmittance data were collected processed by 9 kind of preprocessing methods-normalizations of mean, maximum and range, SNV (standard normal variate), MSC (multiplicative scatter correction), the first derivative and second derivative of Savitzky-Golay and Norris-Gap. With the preprocessed and non-processed original spectrum data, prediction models of hardness of tomato were developed using analytical tools of PLS (partial least squares) and MLR (multiple linear regression) and tested for their validation. The test of validation resulted that the analytical tools of PLS and MLR output similar performances while the transmittance spectra showed much better result than the reflectance spectra.

품질, 취향 및 소비자 구매 의도 간의 관계에 있어 온라인 상품 정보의 역할 (The Role of Online Product Information in the Relationship between Quality, Preference and Customer's Purchase Intention)

  • 이정;이재남
    • 한국IT서비스학회지
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    • 제8권2호
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    • pp.205-228
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    • 2009
  • This paper examines how online product information changes the customers' purchase intentions from subjectivity-objectivity dichotomy perspective. Quality and Preference are proposed as product evaluation criteria and their marginal changes with product information differentiation are hypothesized. An experimental survey was conducted to 57 subjects and the hypotheses were partially supported through PLS path comparison method. The study contributes to IS research by proposing a simple and effective product evaluation framework and by abstracting the impact of product information from other factors. Finally, we suggest the utilization of product information with the optimization of the cost-benefit structure between information and purchase intention.

Web을 통한 원격 환자 모니터링 서비스 (Remote Patient Monitoring Service through World-Wide Web)

  • 이호성;박승훈
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1997년도 춘계학술대회
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    • pp.188-191
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    • 1997
  • In this paper, we present a real-time remote patient monitoring service through world-wide web, which allows the medical doctor to monitor his patients in remote sites using popular web browsers. The real-time service consists of two services: Patient Locator Service (PLS) and Vital Sign Monitoring Service (VSMS). The PLS provides the information of patients currently being monitored. The VSMS allows the user to observe a stream of vital sign data of a specific patient. The vital sign data include ECG, respiration, temperature, $SPO_2$, invasive blood pressure and non-invasive blood pressure.

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Partial Least Squares-discriminant Analysis for the Prediction of Hemodynamic Changes Using Near Infrared Spectroscopy

  • Seo, Youngwook;Lee, Seungduk;Koh, Dalkwon;Kim, Beop-Min
    • Journal of the Optical Society of Korea
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    • 제16권1호
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    • pp.57-62
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    • 2012
  • Using continuous wave near-infrared spectroscopy, we measured time-resolved concentration changes of oxy-hemoglobin and deoxy-hemoglobin from the primary motor cortex following finger tapping tasks. These data were processed using partial least squares-discriminant analysis (PLS-DA) to develop a prediction model for a brain-computer interface. The tasks were composed of a series of finger tapping for 15 sec and relaxation for 45 sec. The location of the motor cortex was confirmed by the anti-phasic behavior of the oxy- and deoxy-hemoglobin changes. The results were compared with those obtained using the hidden Markov model (HMM) which has been known to produce the best prediction model. Our data imply that PLS-DA makes better judgments in determining the onset of the events than HMM.

PLS 착용이 편마비 환자의 동적 균형에 미치는 영향 (Effect of Posterior Leaf Spring on Standing Balance in Patients With Hemiplegia)

  • 김종만;이충휘;양회송;신헌석
    • 한국전문물리치료학회지
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    • 제8권4호
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    • pp.63-69
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    • 2001
  • 이 연구는 성인 편마비 환자를 대상으로 PLS (Posterior Leaf Spring) 착용이 기립 균형에 미치는 영향을 알아보는 것이었다. 신발만 착용하였을 때의 기립조건과 신발과 PLS를 동시에 착용한 기립조건의 평균평형지수가 맨발로 서 있을 때의 기립조건에 비하여 높았다. 그러나 신발만 착용한 기립조건과 신발과 PLS를 함께 착용한 기립조건하에서의 평균평형지수의 차이는 없었다. 따라서 편마비 환자의 기립균형과 관련하여 PLS만을 착용한 효과와 신발만을 착용한 효과를 비교하는 연구가 필요하다.

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인장강도 시험을 통한 질화규소 소재의 설계계수 계산 (Calculation of Design parameter of Si3N4 for Engineering part through the Measurement of Tensile strength)

  • 최영민;이재도;고준
    • 한국세라믹학회지
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    • 제33권6호
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    • pp.709-717
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    • 1996
  • Design parameter of Si3N4 for engineering part could be calculated through the measurement of tensile strength with cylindrical specimen($\Phi$=7.15, ι=110mm) Relative densities of Si3N4 test specimen prepared by pressure-less sintering (PLS) and sinter/HIP were 98.5 and 99.2% respectively. Tensile strength of Si3N4 was 378 MPa for PLS and 509 MPa for sinter/HIP. By the Weibull statistic Design parameter such as Weibull modulus m=8-12 could be calcuated. Fracture strength of Si3N4 related to volume could be effectively pridicted by using Weibull theory.

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지역 지도와 칼만 필터를 이용한 이동 로봇의 위치 추정 (Localization of Mobile Robot using Local Map and Kalman Filtering)

  • 임병현;김영민;황종선;고낙용
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2003년도 하계학술대회 논문집 Vol.4 No.2
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    • pp.1227-1230
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    • 2003
  • In this paper, we propose a pose estimation method using local map acquired from 2d laser range finder information. The proposed method uses extended kalman filter. The state equation is a navigation system equation of Nomad Super Scout II. The measurement equation is a map-based measurement equation using a SICK PLS 101-112 sensor. We describe a map consisting of geometric features such as plane, edge and corner. For pose estimation we scan external environments by laser rage finer. And then these data are fed to kalman filter to estimate robot pose and position. The proposed method enables very fast simultaneous map building and pose estimation.

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모바일 애플리케이션 마켓(앱스토어)의 수용의도 영향요인에 관한 연구

  • 배재권
    • 한국데이타베이스학회:학술대회논문집
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    • 한국데이타베이스학회 2010년도 춘계국제학술대회
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    • pp.223-234
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    • 2010
  • This study is aimed at proposing a new research model in which application store intention to acceptance influence factors (i.e.. facilitating condition, mobile computing self-efficacy, service compatibility, and system quality) affect TAM (i.e., perceived usefulness and perceived ease of use) positively, leading to application store intention to acceptance eventually. This study developed a research model to explain the use of Apple's App Store, and collected 228 survey responses from the undergraduate students who had experiences with such application store services as game and personal information management application download. To prove the validity of the proposed research model, PLS analysis is applied with valid 228 questionnaires. By employing PLS technique, the measurement reliability and validity of research variables are tested and the path analysis is conducted to do the hypothesis testing. In brief, the finding of this study suggests that application store intention to acceptance influence factors affect TAM positively, and application store intention to acceptance as well.

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