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  1. 341

    Construction and validation of a short computerized version of the cognitive test for high school students by Atefe Sohrabi omabad, mahnaz askarian, behaehte niusha

    Published 2025-01-01
    “…In order to check the validity of the test, the criterion validity method was used simultaneously using the Pearson correlation coefficient, which showed a high correlation coefficient of 0.58 in each age category (P<0.01). …”
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  2. 342

    Spatial-Spectral Adaptive Graph Convolutional Subspace Clustering for Hyperspectral Image by Yuqi Liu, Enshuo Zhu, Qinghe Wang, Junhong Li, Shujun Liu, Yaowen Hu, Yuhang Han, Guoxiong Zhou, Renxiang Guan

    Published 2025-01-01
    “…Graph convolution subspace clustering has been widely used in the field of hyperspectral image (HSI) unsupervised classification due to its ability to aggregate neighborhood information. However, existing methods focus on using graph convolution techniques to design feature extraction functions, ignoring the mutual optimization of the graph convolution operator and the self-expression coefficient matrix, leading to suboptimal clustering results. …”
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  3. 343

    University proceedings. Volga region. Technical sciences by V.N. Ashanin, A.A. Korotkov

    Published 2025-05-01
    “…For all values of the absorption coefficient, the mean square error of the linearity of the ΣT-ADC conversion function remains unchanged.…”
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  4. 344
  5. 345

    A Study on the Coarse-to-Fine Error Decomposition and Compensation Method of Free-Form Surface Machining by Yueping Chen, Junchao Wang, Qingchun Tang, Jie Li

    Published 2024-10-01
    “…Second, the coarse systematic errors were finely decomposed using empirical mode decomposition (EMD), which still filters out the IMF components that are larger than the thresholding value of the set correlation coefficient based on the correlation coefficient. Then, the wavelet thresholding method was utilized to finely decompose all the IMF components whose correlation coefficients in the first two decomposition processes were smaller than the threshold value of the correlation coefficient set. …”
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  6. 346

    A Novel Method of Self-Healing Concrete to Improve Durability and Extend the Service Life of Civil Infrastructure by Yan Xue, Weiliang Gao, Yanming Zhao

    Published 2023-01-01
    “…To assess the self-healing ability of the proposed concrete, a concrete durability test study is conducted. …”
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  7. 347

    Gait Planning of Hexapod Walking Robot based on 3-UPU by Xiujiao Wang, Ruiqin Li, Hongwei Meng, Xiaoqin Fan, Wangwang Guo

    Published 2019-03-01
    “…The gait planning of the hexapod walking robot is carried out, including the duty cycle coefficient of the two groups of legs, the order of motion, and the moving stride, the movement trajectory and the equivalent rod length of each branch vary with the movement of the robot.…”
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  8. 348

    Research on the Resilience Evaluation and Spatiotemporal Evolution Characteristics of China’s Marine Fishery Economy by GUAN Mei, CHEN Xiaoyu, LI Chunlin

    Published 2024-08-01
    “…The results indicate that: (1) The overall economic resilience of marine fisheries in China’s coastal provinces from 2001 to 2020 is on the rise; from different dimensions, the resistance-recovery ability and innovation-transformation ability exhibit a fluctuating upward trend, whereas the adaptive-adjustment ability shows a downward trend. (2) The high-value area of marine fisheries economic resilience exhibits a tendency to expand towards the south, while the medium-value and the higher-value areas gradually expand to both the north and south. …”
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  9. 349

    Empowering Parents: The Impact of a Parenting Practice-Based Care Module on Preventing Internet Gaming Disorder in Elementary School Children by Nur Hidaayah, Esti Yunitasari, Hanik Endang Nihayati

    Published 2025-03-01
    “…Parenting style also positively impacted parents’ ability to prevent IGD (t-statistic: 4.82). Notably, child factors had the most significant influence on parental responsiveness (path coefficient: 0.23). …”
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  10. 350

    Improvement of Terrain Entropy Calculation for Grid Digital Elevation Models Considering Spatial Structural Features by Fangbin Zhou, Tianyi Yao, Junwei Bian, Yun Xiao

    Published 2025-02-01
    “…Experimental verification confirms that the method proposed aligns with the fundamental concept of entropy, yielding a regression equation of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>y</mi><mo>=</mo><mn>0.011</mn><mrow><mrow><mi mathvariant="normal">ln</mi></mrow><mo>⁡</mo><mrow><mi>x</mi></mrow></mrow><mo>+</mo><mn>0.463</mn></mrow></semantics></math></inline-formula> with a coefficient of determination of 94.73%, a reliability of 44.015, and a measurement ability of 0.757. …”
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  11. 351

    Solubilization of <i>n</i>-hexadecane by micellar solutions of trehalolipid - surfactants of biological origin by I. A. Nechaeva, A. S. Parfenova, A. S. Filippova, A. E. Filonov

    Published 2024-11-01
    “…To isolate biosurfactants of glycolipid nature produced by oil hydrocarbon degrading bacteria and to establish their ability to solubilize hydrophobic compounds in the case of n-hexadecane.Methods. …”
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  12. 352

    Downhole Pressure Pulse Signal Recognition Based on SSA-CNN-LSTM by JIANG Panqin, LIU Xingbin, JIANG Zhicheng, LI Shanwen, HE Zhuang

    Published 2025-06-01
    “…It is found that the SSA-CNN-LSTM algorithm model outperforms traditional LSTM, CNN-LSTM, and PSO (particle swarm optimization) -CNN-LSTM models in terms of both fitting ability and prediction accuracy. Its coefficient of determination can reach as high as 99%, and the mean absolute error (MAE) and mean squared error (MSE) are as low as 0.011 483 MPa and 0.000 291 MPa2 respectively. …”
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  13. 353

    Experiment on Size Effect and Fractal Characteristics of Waste Brick and Concrete Recycled Aggregate by Hongbo Li, Hubiao Zhang, Pengfei Yan, Yufei Tong, Changyu Yan, Yongfa Ding

    Published 2021-01-01
    “…The proportion of unbroken particles in the 4.75–9.5-mm group constituted more than 60% of the total, indicating that its anticrushing ability was significant. In addition, the model relationship between fractal dimension D, nonuniformity coefficient, and curvature coefficient is established. …”
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  14. 354

    Analysis of Ventilation Efficiency and Effective Ventilation Flow Rate for Wind-driven Single-sided Ventilation Buildings by Junli Zhou, Yong Hua, Yuan Xiao, Cheng Ye, Wei Yang

    Published 2020-12-01
    “…Based on the air flow mechanism of a single-sided wind-driven natural ventilation, the effective ventilation flow rates in buildings are different from the air flow rates through openings. The mixing coefficient or ventilation efficiency is defined by the ratio of these flow rates, indicating the effective ventilating ability of a single-sided ventilation, similar to the effect of penetration depth of fresh air. …”
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  15. 355

    Active Flow Control of Helicopter Rotor Based on Coflow Jet by Jiaqi Liu, Rongqian Chen, Qiaochu Song, Yancheng You, Zheyu Shi

    Published 2022-01-01
    “…During the whole rotation period, the thrust coefficient of the rotor increased by up to 5.6%, the moment coefficient decreased by as much as 26.8%, and the equivalent lift-to-drag ratio increased by up to 44.0%. …”
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  16. 356

    Deep learning approaches for estimating maximum wall deflection in excavations with inconsistent clay stratigraphy by Vinh V. Le, HongGiang Nguyen, Nguyen Huu Ngu

    Published 2025-12-01
    “…Statistical methods, such as pair plots and Pearson correlation, highlighted excavation depth (correlation coefficient = 0.82) as the most significant factor. …”
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  17. 357

    Softness Perception Interfered by Friction in Gliding Virtual Surfaces by Hongbo Wang, Shogo Okamoto

    Published 2025-01-01
    “…For instance, a surface with a stiffness of 500 N/m at minimal friction was perceived as equivalent to 581.7 N/m at a friction coefficient of 0.4. However, the perceived stiffness was not different under frictional conditions, with coefficients ranging from 0.2 to 0.6. …”
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  18. 358

    ISOLATION OF PHOSPHOROUS SOLUBILIZING BACTERIA AND FUNGI FROM RHIZOSPHERE AND ITS EFFICIENCY ON ROCK PHOSPHATE SOLUBILIZATION by Mazin F. Said

    Published 2006-12-01
    “…L-1 after 24 days incubation respectively. The correlation coefficient (R2) between incubation time and pH value were 0.65 and 0.59 while the correlation between pH value and available phosphorous were high reached 0.98 in both bacterias. …”
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  19. 359

    An Experimental Study on the Performance of Check Valve-Aided Savonius Wind Rotors with Semi-Circular Blade by Ivan Farozan, Yuli Setyo Indartono

    Published 2024-12-01
    “…The Savonius wind turbine is perceived favorable for a small-scale application because it is simple, relatively inexpensive, insensitive to wind directions, and has a good self-starting ability. However, it has a low power coefficient caused by the negative torque from the returning blade. …”
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  20. 360

    Study on the Evolutionary Characteristics of Airyprime Beams in Gaussian-Type PT Symmetric Optical Lattices by Depeng Chen, Dongchu Jiang, Zhewen Xiao

    Published 2025-06-01
    “…The Airyprime beam, due to its adjustable focusing ability and controllable orbital angular momentum, has attracted significant attention in fields such as free-space optical communication and particle trapping. …”
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