• Title/Summary/Keyword: Triple Data

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Numerical Study on Sub-Breaking of Free Surface Viscous Flow (자유표면 점성 유동의 준쇄파 수치연구)

  • Kwag, Seung-Hyun
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2003.10a
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    • pp.226-231
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    • 2003
  • The viscous interaction of stern wave is studied by simulating the free-surface flows, including sub-breaking phenomena around a high speed catamaran hull advancing on calm water. The Navier-Stokes equation is solved by a finite difference method where the body-fitted coordinate system, the wall function and the triple-grid system are invoked. The numerical appearance of the sub-breaking waves is qualitatively supported by the experimental observation They are also applied to study precisely on the stern flow of S-103 as to which extensive experimental data are available. For the catamaran, computations are carried out for the mono ana twin hulls.

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A Confirmatory Model for Sustainability of Apparel Brands and Its Impact on Brand Outcomes

  • Park, Hyejune
    • International Journal of Costume and Fashion
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    • v.16 no.1
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    • pp.55-70
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    • 2016
  • The existing research on sustainability in the apparel industry provides no clear consensus on the definition of sustainability for the apparel brands and how sustainability of apparel brands as it is perceived by consumers can be measured. To fill this gap in research, the present study proposes and tests a confirmatory model of sustainability for apparel brands based on the three pillars of sustainability (i.e., economic, environmental, social sustainability) theorized in the Triple Bottom Line model. A survey of 754 U.S. consumers provided data for empirical testing. The results support the three-dimensional factor structure of sustainability for apparel brands and reveal that a second-order sustainability exerts a significant impact on both brand image and brand trust. The findings provide theoretical implications for researchers and practical managerial suggestions for marketers.

Clinical Experience of Carbomedics Prosthetic Heart Valve (Carbomedics 인조 심장판막의 임상적 경험)

  • Jeon, Sang-Hyeop;Kim, Jong-Won
    • Journal of Chest Surgery
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    • v.28 no.9
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    • pp.817-821
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    • 1995
  • The CarboMedics Medical valve has become our mechanical valvular prosthesis of choice because of favorable hemodynamic results that associated with marked clinical improvement and low incidence of thromboembolism after it,s uses. The data for this study was collected from August 1988 to July 1993,five years period. There were total of 57 patients[female 40,male 17 in this series with 4 isolated aortic valve,26 isolated mitral valve,11 double valve and a triple valve replacement. The mean follow up time was 32 months. Postoperatively,58% of cases were in New York Heart Association[NYHA functional class I,and mild and moderate symptoms[NYHA class II were present in 36% and there were very few patients remaining in higher functional classes. In postoperative echocardiographic study, showed marked improved cardiac function. The overall early mortality was 3.5% and the late mortality was one case after triple valve replacement due to sudden death. The causes of early death were attributed to early prosthetic valve endocarditis and heart failure.

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Design of Arithmetic processor with multiple valued BCH code (다치 BCH 부호를 갖는 연산기 설계에 관한 연구)

  • 송홍복;이흥기
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.3 no.4
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    • pp.737-745
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    • 1999
  • In this paper, we present encoders and decoders with the two kinds of ternary Bose-Chaudhuri-Hocquenghem(BCH) codes in the most basic ternary code system from among multiple-valued code systems. One is the random-triple-error-correcting ternary BCH(26,14) code for sequential data, the other is random-triple -error-correcting ternary BCH (26,13) code. The encoders and the decoders realized are verified by experiment. Amount of the (26,13) decoder's hardware is about 50% of the one of the (26,14) decoder's one.

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Real-Time Selection of Pulse Repetition Frequency (PRF) Set for a Triple 2-of-3 PRF Scheme

  • Kim, Tae-Hyung;Yi, Jae-Woong;Byun, Young-Jin
    • Journal of electromagnetic engineering and science
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    • v.13 no.3
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    • pp.186-188
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    • 2013
  • A triple 2-of-3 pulse repetition frequency (PRF) scheme is presented for medium PRF pulsed-Doppler airborne radars, and a real-time method is developed that searches for optimal or sub-optimal PRF sets according to momentary battle situations. The effectiveness of the real-time search method of PRF sets is demonstrated by the experimental results obtained using simulated data.

Bow Wave Breaking and Viscous Interaction of Stern Wave

  • Kwag, Seung-Hyun
    • Journal of Mechanical Science and Technology
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    • v.14 no.4
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    • pp.448-455
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    • 2000
  • The bow wave breaking and the viscous interaction of stern wave are studied by simulating the free-surface flows. The Navier-Stokes equation is solved by a finite difference method in which the body-fitted coordinate system, the wall function and the triple-grid system are invoked. After validation, the calculations are extended to turbulent flows. The wave elevation at the Reynolds number of $10^4$ is much less than that at $10^6$ although the Froude number is the same. The numerical appearance of the sub-breaking waves is qualitatively supported by experimental observation. They are also applied to study the stern flow of S-103 for which extensive experimental data are available. Although the interaction between separation and the stern wave generation are not yet clear, the effects of the bow wave on the development of the boundary layer flows are concluded to be significant.

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A Experimental Study on the Characteristics of Waste Heat Recovery Type Triple Heat Exchanger in the Cooling and Heating Systems (냉난방 시스템계 폐열 회수용 3중관 열교환기 특성에 관한 실험적 연구)

  • Lee, Kwang-Bae;Lee, Ho-Saeng;Moon, Chun-Geun;Kim, Jae-Dol;Yoon, Jung-In
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • 2005.06a
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    • pp.1091-1095
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    • 2005
  • This study is performed to develop a tripple-tube exchanger which can improve the system efficiency. Three different tube diameters are compacted by one body(tripple-tube) to recover waste heat from heat exchanging among the fluids. With this, the tripple-tube shows higher cooling capacity than the double-tube after comparing between those two systems. The results of this study are basic data to design the optimum tripple-tube heat exchanger.

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Higher Order Moments of Record Values From the Inverse Weibull Lifetime Model and Edgeworth Approximate Inference

  • Sultan, K.S.
    • International Journal of Reliability and Applications
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    • v.8 no.1
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    • pp.1-16
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    • 2007
  • In this paper, we derive exact explicit expressions for the triple and quadruple moments of the lower record values from inverse the Weibull (IW) distribution. Next, we present and calculate the coefficients of the best linear unbiased estimates of the location and scale parameters of IW distribution (BLUEs) for different choices of the shape parameter and records size. We then use the higher order moments and the calculated BLUEs to compute the mean, variance, and the coefficients of skewness and kurtosis of certain linear functions of lower record values. By using the coefficients of the skewness and kurtosis, we develop approximate confidence intervals for the location and scale parameters of the IW distribution using Edgeworth approximate values and then compare them with the corresponding intervals constructed through Monte Carlo simulations. Finally, we apply the findings of the paper to some simulated data.

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Grammatical Structure Oriented Automated Approach for Surface Knowledge Extraction from Open Domain Unstructured Text

  • Tissera, Muditha;Weerasinghe, Ruvan
    • Journal of information and communication convergence engineering
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    • v.20 no.2
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    • pp.113-124
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    • 2022
  • News in the form of web data generates increasingly large amounts of information as unstructured text. The capability of understanding the meaning of news is limited to humans; thus, it causes information overload. This hinders the effective use of embedded knowledge in such texts. Therefore, Automatic Knowledge Extraction (AKE) has now become an integral part of Semantic web and Natural Language Processing (NLP). Although recent literature shows that AKE has progressed, the results are still behind the expectations. This study proposes a method to auto-extract surface knowledge from English news into a machine-interpretable semantic format (triple). The proposed technique was designed using the grammatical structure of the sentence, and 11 original rules were discovered. The initial experiment extracted triples from the Sri Lankan news corpus, of which 83.5% were meaningful. The experiment was extended to the British Broadcasting Corporation (BBC) news dataset to prove its generic nature. This demonstrated a higher meaningful triple extraction rate of 92.6%. These results were validated using the inter-rater agreement method, which guaranteed the high reliability.

Heteronuclear NMR studies on 44 kDa dimer, syndesmos

  • Kim, Heeyoun;Lee, Inhwan;Han, Jeongmin;Cheong, Hae-kap;Kim, Eunhee;Lee, Weontae
    • Journal of the Korean Magnetic Resonance Society
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    • v.19 no.2
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    • pp.83-87
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    • 2015
  • Syndesmos, which is co-localized with syndecan-4 cytoplasmic domain ($Syn4^{cyto}$) in focal contacts, interacts with various cell adhesion adaptor proteins including $Syn4^{cyto}$ to control cell signaling. Syndesmos consists of 211 amino acids and it exists as a dimer (44kDa) in solution. Recently, we have determined the structure of syndesmos by x-ray crystallography, however, dynamics related to syndecan binding still remain elusive. In this report, we performed NMR experiments to acquire biochemical and structural information of syndesmos. Based on a series of three-dimensional triple resonance experiments on a $^{13}C/^{15}N/^2H$ labeled protein, NMR spectra were obtained with well dispersed and homogeneous NMR data. We present the sequence specific backbone assignment of syndesmos and assigned NMR data with combination structural information can be directly used for the studies on interaction with $Syn4^{cyto}$ and other binding molecules.