A Parametric Study on the Effect of Blade Configuration in a Double-Stage Savonius Hydrokinetic Turbine by Xiang Ying Tham, Cheng Yee Ng, Muk Chen Ong, Novi Fairindah Tingkas

“…A similar performance trend is observed for the torque coefficient. This study recommends selecting blade configurations based on flow velocity, providing design guidance for double-stage HKTs operating in varying marine conditions.…”
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Short-term output prediction of wind-photovoltaic power based on time-frequency decomposition by Yangfan Zhang, Xuejiao Fu, Yaohan Wang, Zhengyu Wang, Xiaoxiao Wang

“…Next, the maximum information coefficient is used to select features, which is highly correlated with wind and photovoltaic power as input features to the prediction model. …”
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Selection of Numerical Criterion Value for Determination of Short Circuit Type in Adaptive Micro-Processing Current Protection of Electric Power Lines by A. V. Kovalevsky

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Site Selection Evaluation of Pumped Storage Power Station Based on Multi-Energy Complementary Perspective: A Case Study in China by Hui Zhao, Yanqi Xu

“…Site selection of power stations is the key to successful operation. …”
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Blade height impact on self-starting torque for Darrieus vertical axis wind turbines by Hossein Seifi Davari, Ruxandra Mihaela Botez, Mohsen Seify Davari, Harun Chowdhury, Hasan Hosseinzadeh

“…From an analysis of 43 rotors at a chord-based Reynolds number (Rec) of 45,192, national advisory committee for aeronautics (NACA) 0015, NACA4412, and NACA4415 rotors were selected for their superior power coefficients (Cp). …”
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A review of power system oscillation analysis methods from a port-based perspective by ZHENG Le, LIANG Yining

“…Among the various oscillation analysis methods in power systems， impedance-based and torque-based analysis methods have garnered significant attention. …”
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The potential energy impact of the suction tube of pumping facilities on the mark of pump axis installation and the power consumption of drive motors by Dmitriy S. Tsyplenkov, Irina N. Vinokurova, Ruslan R. Mazanov, Yulia S. Urzhumova

“…Purpose: to substantiate theoretically the impact of the potential energy of suction tube of pumping facilities on the installation mark of the pump axis and the drive motor power. Materials and methods. The theoretical studies were based on the substantiation of the impact of potential energy in the pump housing on head, on the analysis of dependence of hydraulic resistances coefficients in the suction tube on the installation height of the pump axis relative to the water source surface and on the impact of potential energy in the suction tube on the useful power of drive motors. …”
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Special endurance coefficients enable the evaluation of running performance by Wolfgang Blödorn, Frank Döring

“…Abstract Running performance from sprint to long distance is largely determined by the interplay between basic speed and endurance. Existing power-law, physiological, and theoretical models describe and explain the characteristic decline in pace with increasing distance. …”
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A Novel Fault Feeder Selection Method for Resonant Grounding Distribution Networks Based on Improved Hough Transform by Liang GUO, Xinyu QU, Xiaowei WANG, Yizhao WANG, Ying TIAN, Fan ZHANG

“…Firstly, the optimized variational mode decomposition (VMD) is used to process the zero-sequence power of each feeder, consequently selecting the mode IMF(k) with the highest correlation strength with the original zero-sequence power. …”
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Selection method for hybrid energy storage schemes for supply reliability improvement in distribution networks by Qian Li, Yuanbao Zhou, Yunxiao Zhang, Yuxin Fu

“…This method mitigates the influence of subjective coefficients by evaluating HES schemes under different subjective coefficients and selecting optimal and sub-optimal schemes. …”
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A data-driven hybrid framework for voltage transformer ratio error prediction: Addressing challenges in complex power systems by Jiuxi Cui, Zhenhua Li, Heping Lu, Feng Zhou, Haoyu Chen, Zhenxing Li

“…First, an energy entropy-optimized adaptive variational mode decomposition method is developed, which introduces convergence constraints for parameter selection, reducing randomness during the decomposition process and is validated by power spectrum analysis. …”
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SERIES COMPENSATION OF REACTIVE POWER IN A LOW-VOLTAGE CIRCUIT OF THE ELECTRIC ARC FURNACE by N. P. Badalyan, G. P. Kolesnik, S. G. Solovyova, Ye. A. Chaschin

“…This makes it possible to increase the efficiency coefficient of electric arc furnace power supply devices by reducing the power losses in the power supply system and in the furnace lowvoltage circuit by 1.6 times, as well as reducing the total load in the power transformer by 1.36 times.…”
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Global Clustering Quality Coefficient Assessing the Efficiency of PCA Class Assignment by Mirela Praisler, Stefanut Ciochina

“…We are proposing a set of indicators inspired from analytical geometry that may be used for an objective quantitative assessment of the data clustering quality as well as a global clustering quality coefficient (GCQC) that is a measure of the overall predictive power of the PCA models. …”
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A hybrid ultra-short-term photovoltaic power prediction framework integrating ant colony optimization for clustering with Bi-GRU by Xinyi Liu, Zitao Wang, Yang Wang, Shanke Liu, Lijun Yu

“…Compared to derivative models, this approach improves the Dunn Index by 24 % and the Silhouette Coefficient by 34 %. Kendall’s Rank Correlation Coefficient is utilized as the core metric for feature selection to identify the optimal predictive feature subset, resulting in a 9-feature set that achieves the best predictive performance (R2 = 0.8153). …”
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Non-uniform dust distribution effect on photovoltaic panel performance by Saman S. Jaafar, Hiwa A. Maarof, Renas T. Salh, Hoshang Sahib, Yousif H. Azeez

“…It is used to quantitatively determine the impact of dust deposition on the PV power generation panel. To determine the selection range of unknown parameters in the </em><em>experiment process</em><em>, a photovoltaic </em><em>panel</em><em> </em><em>with </em><em>five</em><em> </em><em>collected</em><em> dust </em><em>samples</em><em> (</em><em>Toner (C)</em><em>, Soil,</em><em> Cement</em><em> </em><em>(</em><em>Ca</em><em>O</em><em>,</em><em> </em><em>SiO₄</em><em>)</em><em>, </em><em>Gypsum (</em><em>Ca₂SO₄.2H₂O</em><em>)</em><em>, and</em><em> Sand (</em><em>AL₂O₃, SiO₄</em><em>)</em><em>) is designed. …”
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Amended Calculation of Solar Heat Gain Coefficient Based on the Escape of Incident Solar Radiation by Shunyao Lu, Dongfang Yang, Xiaoqing Huang, Tao Chen, Zhengzhi Wang

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Algorithm for the synthesis of linear antenna arrays with desired radiation pattern and integral amplitude coefficients by A. V. Sadchenko, O. A. Kushnirenko, A. V. Troyansky

“…Thus, the amplitude and phase coefficients are first calculated using the Fourier transform, and then processed according to the selected type of circuit realization of attenuators and phase shifters. …”
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Sensitivity Analysis of Acoustic Field Parameters on a Change of Boundary Conditions in a Room by Katarzyna SUDER-DĘBSKA, Ireneusz CZAJKA, Mateusz CZECHOWSKI

“…The main objective of this work is a comprehensive analysis of the numerical model of a laboratory designed for acoustic tests of selected power machines. The geometry of a room comprising an area of analysis is easy to design. …”
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Adaptive delta modulation method for arbitrary adaptation coefficients in the sensor network of the mobile ECG monitoring by О. В. Тимченко, В. І. Лозинський

“…Therefore, there was a need to develop an ADM method based on the Menshikov’s ADM for arbitrary adaptation coefficients. The right selection of adaptation coefficients can lead to an increase of signal accuracy which is reproduced based on the received delta code. …”
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A holomorphic embedding power flow method based on dynamic power restart by Yi Zhang, Tian Lan, Chuandong Li, Weijie Cai, Zhiyu Lin

“…The holomorphic embedding method (HEM) is a newly developed recursive algorithm, which has the advantages of not depending on initial value selection and providing an analytical solution. However, in the actual power flow calculation of large power grids with heavy loads, HEM needs to calculate high-order power series coefficients, which is prone to numerical problems, resulting in convergence problems in power flow calculation. …”
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