Search Results - variable reduction

  1. Modelling of resonant acoustic mixing of dry spherical particles

    Published 2022
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  2. A Machine Learning Model for Octane Number Prediction by Spencer, Victor

    Published 2024
    “…The choice of neural network architecture was made because the data frame was small, with only 12 input variables and 350 observations. Prior to training the models, an Explanatory Data Analysis was carried out to assess the potential dimensionality reduction, correlations and outliers. …”
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  3. Children, investments in education and poverty in Malawi by Mussa, Richard

    Published 2014
    “…After accounting for endogeneity of fertility by using son preference as an instrumental variable, we found that fertility increases the probability of being objectively poor. …”
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  4. The pHauxostat

    Published 2013
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  5. Characterization of transcription factors and LncRNAs involved in the development of the bat wing by Gill, Zoe

    Published 2016
    “…It was discovered this region is variable amongst biological samples; however there is a large reduction in expression in this region from CS 15 to CS 16.…”
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  6. The thermal tolerances and preferences of native fishes in the Cape Floristic Region: towards understanding the effect of climate change on native fish species by Reizenberg, Jody-Lee

    Published 2017
    “…Global climate change models indicate that a rise in temperature and reduction in rainfall in the Western Cape Province of South Africa is inevitable and unavoidable. …”
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  7. Pulsatile Electropolishing of Nitinol Stents by Cloete, Jeran Andre

    Published 2022
    “…Di_erential pulse voltammogram yielded a feedback parameter on surface composition, and various pulse parameters were adjusted to optimize for surface smoothness, and identify the primary control variable. An electropolishing method is presented which achieves a :50% reduction in the Sa surface roughness value to an area average of 45 nm on a laser cut tubular stent geometry. …”
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  8. Linking microbial community dynamics and performance of a biological sulphate reducing system using a mixed volatile fatty acid stream as electron donor by Motleleng, Liabo

    Published 2021
    “…One of the challenges associated with BSR is the supply of a cost-effective carbon source which also acts as an electron donor for the anaerobic reduction of sulphate. Studies have reported that both the choice of carbon source and electron donor and the microbial communities present influence the sulphate reduction process, the former frequently defining technoeconomic feasibility. …”
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  9. Improving linearity utilising adaptive predistortion for power amplifiers at mm-wave frequencies

    Published 2014
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  10. EOQ models for deteriorating items with substitutable and mutual complementary price, stock, and time-dependent demand

    Published 2022
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  11. A Higher-Order VOF Interface Reconstruction Scheme for Non-Orthogonal Structured Grids - with Application to Surface Tension Modelling by Ilangakoon, Niran A

    Published 2023
    “…The curvature computation scheme is finally applied in a balanced-force continuum-surface-force (CSF) [4] surface tension scheme for variable-density flows on nonorthogonal structured grids in 2D. …”
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  12. COMPUTER EFFICACY TRAINING AND COGNITIVE BEHAVIOUR THERAPY IN THE MANAGEMENT OF COMPUTER ANXIETY AMONG

    Published 2016-09
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  13. Evaluation of water quality in urban drinking water distribution networks: a case study in Johannesburg, South Africa by Luyaba, Lubabalo

    Published 2025
    “…Drinking water quality (considering various specific determinants) was the dependent variable, with the independent variables being: hydraulic definition, level of calibration, pipe age, pipe material, water demand pattern, load shedding and tank (reservoir) mixing model. …”
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  14. A process performance monitoring methodology for mineral processing plants by Groenewald, Jacobus Willem De Villiers

    Published 2014
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  15. Thermal analysis of a feedwater heater tubesheet through coupling of a 1D network solver and CFD

    Published 2021
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  16. Multi-label feature selection with application to musical instrument recognition by Sandrock, Trudie

    Published 2014
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  17. The design and optimization of a system using an induction motor driven pump, powered by solar panels by Davies, J L

    Published 2016
    “…The capacity could be extended to operate up to the full rating of the motor. A variable frequency drive has been designed to control the motor speed. …”
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  18. Reconstructing the diets of southern African farmers: comparing stable isotopes across body tissues by Zhu, Madeline R M W

    Published 2017
    “…Multi- and bi-variate models are unable to distinguish between C4 plants and animals in some cases, and recreation of cluster analysis including the Iron Age data results in a reduction in the parsimony of the dietary clusters derived in Froehle et al. 2012. …”
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