Study of electromagnetic processes in the system “contact network—electric locomotive” while reducing the minimum opening angle of the thyristors in the rectifier-inverter converte... by Yu. M. Kulinich, D. Yu. Drogolov

“…Their high convergence is confirmed by the calculation of the coefficient of determination R2. Calculations on the “contact network — electric locomotive” model show that compared with the standard scheme of the electric locomotive, where the minimum opening angle of the thyristors is α0 = 9° el., the decrease in the angle α0 to 4.5° el. leads to an almost twofold decrease in the amplitude of pre-switching voltage fluctuations and a small decrease in the amplitude of post-switching voltage fluctuations. …”
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Efficient adsorption of methylene blue (MB) by an eco-friendly chitosan derivative adsorbent: An RSM and ANN modeling study by E. Igberase, I.G. Mkhize

“…Statistical metrics such as average relative errors (ARE), coefficient of determination (R2), mean squared error (MSE), Pearson's Chi-square (χ2), root means square errors (RMSE), and the sum of squares of errors (SSE) were used to measure the RSM and ANN models. …”
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Modelling the future of cleaner energy: Explainable artificial intelligence model for green hydrogen production rate estimation by Okorie Ekwe Agwu, Saad Alatefi, Ahmad Alkouh

“…The results from the model development show that the model demonstrates reasonable precision, with a mean square error of 0.0588, root mean square error of 0.24, mean absolute error of 0.1057 and a coefficient of determination of 0.95. The connection weights algorithm applied to the model enhances its explainability by illustrating the relative contributions of each input variable and their impacts on hydrogen yield. …”
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The Influence of Technological Factors of the Bimetallic Ribbed Tube Manufacturing Process on the Heat Transfer Rate of Air-Cooling Units by A. B. Sukhotski, V. B. Kuntysh

“…To measure heat transfer, a local thermal modeling method was applied using an electrode calorimeter tube of a fluidized type installed in the middle of the third and fifth transverse rows of the bundle. …”
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Development and validation of odour identification tests for olfactory assessment in Singapore by Xinni Xu, Margaret Ru Xiang Zhang, Terese Huiying Low, Yew Kwang Ong

“…Both tests had good test-retest reliability (Pearson’s correlation coefficient of 0.88 with P < 0.001 for SS-Sg; and at 0.90 with P < 0.001 for Scentsor). …”
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Feature Importance Analysis for Compressive Bearing Capacity of HSCM Piles Based on GA-BPNN by Fangzhou Chu, Jiakuan Ma, Yang Luan, Shilin Chen

“…The results demonstrate that the GA-BPNN model achieves a prediction accuracy of 99.07%, with a mean squared error (<i>MSE</i>) of 7.20 × 10⁻³ and a coefficient of determination <i>R</i>² of 0.990. …”
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Prediction of Water Quality Index of Island Counties Under River Length System—A Case Study of Yuhuan City by Cheng Zhang, Lei Wang, Chuan Lin, Minyuan Lu

“…Under the optimal input variable combination, the Extreme Gradient Boosting model demonstrated the best prediction performance, with a root mean square error (RMSE) of 0.7081, a mean absolute error (MAE) of 0.4702, and an adjusted coefficient of determination (Adj.R²) of 0.6400. …”
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The relationship between self-compassion and fear of childbirth in pregnant women with gestational diabetes by Parisa Shadab, Sousan Heydarpour, Fatemeh Heydarpour, Mahsa Barkhordari

“…The present study aimed to determine the relationship between self-compassion and fear of childbirth in pregnant women with gestational diabetes. …”
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Grounding Fault Protection Scheme for 0.4 kV Switchgear in Metro Substations by ZHOU Wenwei

“…Therefore, it is essential to thoroughly analyze single-phase grounding fault protection for 0.4 kV switchgear and establish appropriate protective measures. ［Method］ Based on the characteristics of metro systems and relevant regulatory guidelines, requirements of single-phase grounding fault protection configurations, principle setting, sensitivity coefficient check, and time sequence coordination for 0.4 kV main busbar and 0.4 kV distribution lines are proposed. …”
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Prediction of mechanical characteristics of shearer intelligent cables under bending conditions. by Lijuan Zhao, Dongyang Wang, Guocong Lin, Shuo Tian, Hongqiang Zhang, Yadong Wang

“…The results show that, compared to other predictive models, the proposed model achieves reductions in Mean Squared Error (MSE), Root Mean Squared Error (RMSE), and Mean Absolute Error (MAE) to 0.0002, 0.0159, and 0.0126, respectively, with the coefficient of determination (R2) increasing to 0.981. …”
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Configurational Comparison of a Binary Logic Transmission Unit Applicable to Agricultural Tractor Hydro-Mechanical Continuously Variable Transmissions and Its Wet Clutch Optimizati... by Wenjie Li, Zhun Cheng, Mengchen Yang

“…This study confirms the rationality of the modeling method, identifies Configuration 1 as optimal, and determines the optimal range for clutch design values under light-load and heavy-load conditions, respectively.…”
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Investigating critical thinking skills in Arabic textbooks exercises of junior high schools based on Lipman's Theory by Fatemeh Irandoost, Maryam Jalaei, Abbas Zare-ee Tajareh

“…The methodology applied in this research is descriptive as well as content analysis methodology and Shannon entropy weighting method has been used in order to determine the importance coefficient of the studied components. …”
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An improved WHCrop-Humid model for simulating crop growth in seasonally arid, shallow groundwater regions of Southwest China by XING Jiacheng, HE Liuyue, XUE Jingyuan, LI Jun

“…【Result】 The improved WHCrop-Humid model accurately simulated evapotranspiration and maize yield. The determination coefficient (R2) of the model for simulating the leaf area index (LAI) was 0.908, with its associated normalized root mean square error (NRMSE) and Willmott’s index of agreement (WIA) being 0.117 and 0.974, respectively. …”
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Deep Learning-Based Vertical Decomposition of Ionospheric TEC into Layered Electron Density Profiles by Jialiang Zhang, Jianxiang Zhang, Zhou Chen, Jingsong Wang, Cunqun Fan, Yan Guo

“…Experimental validation against COSMIC-2 radio occultation observations in 2019 demonstrates the model’s capability to capture ionospheric vertical structures, with a prediction performance significantly outperforming the International Reference Ionosphere model IRI-2020: root mean square error (RMSE) decreased by 34.16%, and the coefficient of determination (R²) increased by 28.45%. …”
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The effect of biofertilizer on water regime, intensity of photosynthesis and productivity of grain crops in the Steppe Pre-Urals by D. G. Fedorova, L. V. Galaktionov

“…The purpose of the current study was to determine the effect of biofertilizer on the parameters of the water regime, pigment, and gas composition of grain crops. …”
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The effect of volumetric energy density on high-temperature dry sliding wear behaviour of 310 stainless steel fabricated by Selective Laser Melting process by Nandhakumar R, K. Venkatesan

“…The experiments were conducted using the Taguchi method to determine the optimal conditions of laser power (230W- 350 W) and scanning speed (700 mm/s-1100 mm/sec) for the as-printed specimen regarding wear rate and coefficient of friction (CoF). …”
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Detection and traceability of tetramethylpyrazine in the brewing process of Fuhexiangxing Baijiu by XUE Xijia, CHENG Wei, CHEN Xuefeng, LAN Wei, LI Na, LI Ruilong, PAN Tianquan, DAI Sen

“…In this study, a method was established for the determination of tetramethylpyrazine (TTMP) in the brewing process of Fuhexiangxing Baijiu by headspace solid-phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS), the distribution and migration of TTMP in the brewing process of Baijiu were traced by analyzing the content of TTMP in Jiuqu, fermented grains (distiller's grains), pit mud and base liquor in different fermentation layers during brewing. …”
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Sliding characteristics of chute waste slag in high steep canyon ecologically sensitive areas by Peishuai Chen, Fuxiang Chen, Dejie Li, Jing Xiao, Juntao Zhu, Xutao Zeng, Shichao Zhang

“…Through theoretical analysis to determine the friction coefficient of the discarded slag in the chute, with the help of field tests to optimize the design of the chute structure, numerical simulation was used to verify the reasonableness of the spacing arrangement of the fishbone-shaped baffle plate. …”
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Chemometric and computational modeling of polysaccharide coated drugs for colonic drug delivery by Ahmad Khaleel AlOmari, Khaled Almansour

“…Assessment metrics, such as the coefficient of determination (R²), root mean square error (RMSE), and mean absolute error (MAE), emphasize the MLP model’s exceptional performance. …”
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MILK CRISIS IN ROMANIA REFLECTED BY FOOD BALANCE, 2014-2021 by Agatha POPESCU, Toma Adrian DINU, Elena STOIAN, Valentin ŞERBAN

“…The data provided by National Institute of Statistics were processed using fixed basis index, regression equations, determination coefficient, graphically illustration and comparison method. …”
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