Results 1 to 10 of about 2,713,209 (180)
Analysis and improvement of the efficiency of NH3-NaSCN single effect absorption cooling system
Heliyon, 2022 This work aims at reinforcing simultaneously the coefficient of performance (COP) and the exergetic coefficient of performance (ECOP), in order to improve the operation of an absorption chiller to be used in tropical areas.
Gilbert Roméo Hubert Ngock +3 more
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Diagnostic and Interventional Radiology, 2022 PURPOSE:In this study, we assessed the performance of apparent diffusion coefficient (ADC) and diffusion-weighted imaging (DWI) metrics and their ratios across different magnetic resonance imaging (MRI) acquisition settings, with or without an endorectal
Ercan Karaarslan +6 more
doaj +1 more source
Frontiers in Earth Science, 2021 Although buildings are often heated and cooled by single-well circulation coupled groundwater heat pump systems, few studies have evaluated the long-term performance of these systems.
Ke Zhu +11 more
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Analysis of Performance of Cavitation Models with Analytically Calculated Coefficients [PDF]
Energies, 2021 Cavitation is often simulated using a mixture model, which considers the transport of an active scalar, namely the vapor fraction αv. Source and sink terms of the transport equation of αv, namely vaporization and condensation terms, rule the dynamics of the cavity and are described through different models.
Andrea Savio +2 more
openaire +3 more sources
Fish schooling as a basis for vertical axis wind turbine farm design [PDF]
, 2000 Most wind farms consist of horizontal axis wind turbines (HAWTs) due to the high power coefficient (mechanical power output divided by the power of the free-stream air through the turbine cross-sectional area) of an isolated turbine.
Whittlesey, Robert W. +2 more
core +8 more sources
Four-Objective Optimizations of a Single Resonance Energy Selective Electron Refrigerator
Entropy, 2022 According to the established model of a single resonance energy selective electron refrigerator with heat leakage in the previous literature, this paper performs multi-objective optimization with finite-time thermodynamic theory and NSGA-II algorithm ...
Jinhu He +4 more
doaj +1 more source
A unifying view for performance measures in multi-class prediction [PDF]
, 2010 In the last few years, many different performance measures have been introduced to overcome the weakness of the most natural metric, the Accuracy. Among them, Matthews Correlation Coefficient has recently gained popularity among researchers not only in ...
Cesare Furlanello +3 more
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Influence of Clearance Volume on Performance of Reciprocating Compressor
Zhileng xuebao, 2021 The cooling capacity of a reciprocating compressor can be finely adjusted using the clearance volume. To study the influence of the clearance volume and the intermediate clearance volume on the performance of the reciprocating compressor, the clearance ...
Wei Huijun +4 more
doaj +2 more sources
Water Extraction from Air: A Proposal for a New Indicator to Compare Air Water Generators Efficiency
Energies, 2021 Water extraction from air, based on reverse cycle systems, is becoming a technology more and more diffused and various models of air to water generators (AWG) are now available, all claiming the best efficiency. To date, there is not a standard indicator
Lucia Cattani +2 more
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Performance Analysis of Effective Symbolic Methods for Solving Band Matrix SLAEs [PDF]
, 2019 This paper presents an experimental performance study of implementations of three symbolic algorithms for solving band matrix systems of linear algebraic equations with heptadiagonal, pentadiagonal, and tridiagonal coefficient matrices.
Ayriyan, Alexander, Veneva, Milena
core +2 more sources