Structural Damage Identification Based on the Wavelet Transform and Improved Particle Swarm Optimization Algorithm by Jia Guo, Deqing Guan, Jianwei Zhao

“…First, the singularity of wavelet coefficients is used to identify the structural damage location, and then, the improved particle swarm optimization (IPSO) algorithm is used to calculate the optimal solution of the objective function of the structural damage location to determine the structural damage severity. …”
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NONLINEAR EQUATION WITH THE THIRD ORDER SCATTERING OPERATOR by Olga Sergeevna Yanovskaya, Olesya Borisovna Surneva

“…The possibility of using third-order linear systems is being studied. Materials and methods of research: methods for constructing partial differential equations using the Lax operator equation with differential operators of the first order and matrix coefficients of 3 x 3 were used. …”
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Oblique propagation of high-frequency electron-acoustic periodic waves in a nonthermal plasma by Haifa A. Alyousef, Daud Khan, Wilayat Khan, Muhammad Khalid, C. G. L. Tiofack, Samir A. El-Tantawy

“…The reductive perturbation method (RPM) is used to derive the Korteweg–de Vries (KdV) equation. …”
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Two-Dimensional Correlation Infrared Spectroscopy for Rapid Analysis of the Effect of pH on the Secondary Structure Content of Soybean Protein Isolate by LIU Chang, WU Dandan, WANG Ning, WANG Ruiying, WANG Liqi, LIU Feng, YU Dianyu

“…The results showed that the relative standard deviations of the α-helix, β-sheet, β-turn, and random coil prediction models developed by the combined use of MC and MSC were 1.29%, 1.60%, 1.37%, and 7.28%, respectively, indicating their combination to be the best spectral pre-processing method. The optimal model for predicting α-helix and β-sheet contents was AOA-RF (characteristic wavebands), with calibration determination coefficients of 0.935 0 and 0.926 6 and prediction determination coefficients of 0.856 8 and 0.870 1, respectively. …”
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Near-Infrared Spectroscopy and Machine Learning for Fast Quality Prediction of Bottle Gourd by Xiao Guo, Hongyu Huang, Haiyan Wang, Chang Cai, Ying Wang, Xiaohua Wu, Jian Wang, Baogen Wang, Biao Zhu, Yun Xiang

“…Among them, ridge regression achieved the optimal performance, with determination coefficients (R²) of 0.96 and 0.77 on the protein and FAAs test sets, respectively, and root mean square error (RMSE) values of 0.23 and 0.5, respectively. …”
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DWE: Research on Water Quality Inversion and Scalability in Small Watersheds Using UAV Remote Sensing Data by Hao Li, Zhijun Xie, Xing Jin, Changchun Peng, Cheng Ren, Yunfei Mao, Kefan Zhou, Yingying Li

“…The results show that the DWE model based on optimal features has high accuracy and robustness in WQP prediction, with coefficients of determination (<inline-formula> <tex-math notation="LaTeX">$R^{2}$ </tex-math></inline-formula>) of 0.8472, 0.8547, 0.8973, and 0.8393 for chlorophyll a (Chl-a), chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP), respectively, which improved the prediction accuracy by nearly 30% compared with the traditional inversion model. …”
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RESEARCH CONCAVE CIRCULAR HOLE TEMPLATE LINEAR VARIABLE THICKNESS STIFFNESS AND STRENGTH THEORIES by LI ShaoJie

“…This paper studies linear variable thickness circular aperture concave template theory of stiffness and strength calculation.First,set up mechanical model:Template for circular concave,outside the perimeter fixed; center has a round hole,inside the perimeter free,outside under uniformly distributed vertical load.Secondly,the establishment of mathematical model:Derivation of concave template in the axisymmetric condition,ordinary differential equation with variable coefficients of elastic curved surface,and gives the mathematical expressions of boundary conditions.Again,in view of the differential equation boundary value problem,the displacement method and the Matlab algorithm,it is concluded that the deflection of concave template function,and establish the stiffness calculation condition of concave template.Then,determine the concave template on the bending moment and the maximum bending moment and stress,so as to establish a concave template strength calculation conditions.Finally,numerical examples.This paper presents the function solutions,to change law of control concave template section variable parameters.In this way,not only highlight the interdependent relationship between the quantity of each,and optimization,and discussion and application.The result is suitable for uniform,continuous,isotropic material artifacts.Because in the process of calculation and data processing with error,so the formula is similar.…”
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Analysis of Critical Velocities for an Infinite Timoshenko Beam Resting on an Elastic Foundation Subjected to a Harmonic Moving Load by Bin Zhen, Wei Luo, Jian Xu

“…Critical velocities are investigated for an infinite Timoshenko beam resting on a Winkler-type elastic foundation subjected to a harmonic moving load. The determination of critical velocities ultimately comes down to discrimination of the existence of multiple real roots of an algebraic equation with real coefficients of the 4th degree, which can be solved by employing Descartes sign method and complete discrimination system for polynomials. …”
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Peony diagram modeling for improving the easy disassembly design of mobile electronic products by Junling Huang, Chuangchuang Cui, Wei Jiang, Libin Zhu

“…The findings demonstrate that the proposed method can accurately assess the ease of disassembly of key components during product repair and recycling. …”
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Gender-specific assessment of lipid profiles correlation with serum uric acid in non-dialysis chronic kidney disease patients: Prospective observational cross-sectional study by Yousuf Abdulkarim Waheed, Yousuf Abdulkarim Waheed, Huanhuan Yin, Jie Liu, Shifaa Almayahe, Maryam Bishdary, Karthick Kumaran Munisamy Selvam, Syed Muhammad Farrukh, Shulin Li, Shulin Li, Yanping Wang, Yanping Wang, Disheng Wang, Disheng Wang, Disheng Wang, Xinglei Zhou, Dong Sun, Dong Sun, Dong Sun

“…Using a multistage stratified sampling method based on age and SUA to examine the differences among groups, Spearman’s correlation and linear regression analysis were utilized to study the association between SUA and lipid profiles, and multivariate analysis to determine the effect of SUA quartiles on multiple dependent variables collectively.ResultsLDL-c was positively correlated with SUA levels, with Spearman’s correlation coefficients of R=0.3553 in males and 0.5137 in females (both with P&lt;0.0001). …”
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Guidelines of the minimum sample size requirements for Kappa agreement test by Mohamad Adam Bujang, Nurakmal Baharum

“…The effect sizes were derived from several pre-specified estimates such as the pattern of the true marginal rating frequencies and the difference between the two kappa coefficients in the hypothesis testing. Results:     When the true marginal rating frequencies are the same, the minimum sample size determination can range from 2 to 698 depending on the actual value of the effect size. …”
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Calculation of Optical Parameters of Thin Films of Structural Materials of Thermal Uncooled Bolometric Type Detector by Van Trieu Tran, K. V. Korsak, P. E. Novikov, I. Yu. Lovshenko, S. M. Zavadski, D. A. Golosov, A. A. Stepanov, A. A. Hubarevich, V. V. Kolos, Ya. A. Solovjov, D. S. Liauchuk, V. R. Stempitsky

“…The investigation showcases the results of determining optical constants (refractive indexes n and absorption coefficients k) of thin films from the transmission curve by applying the reflection-transmission method. …”
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Assessment of the degree of key factors impact on the competitiveness of enterprises in the agricultural sector of the Zaporizhia region based on a priori ranking by K.S. Malyuta

“…Development and substantiation of a systematic approach to marketing management of the competitiveness of agricultural enterprises based on a priori ranking of factors, which makes it possible to increase their adaptability to changes in the market environment, optimize the use of resources and form sustainable competitive advantages. Methods. Integrated approach that includes theoretical and empirical methods for analyzing and evaluating the competitiveness of agricultural enterprises. …”
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Numerical simulation of the transverse flow over spans of girder bridges by Yu. A. Gosteev, A. D. Obukhovskiy, S. D. Salenko

“…The technique of numerical modeling of the transverse flow over span structures of bridges on the basis of the two-dimensional URANS (Unsteady Reynolds-averaged Navier-Stokes) approach used in the modern methods and software packages for computational fluid dynamics is verified. …”
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Research on Data Repair of Pile-Type Adjustable Wind Turbine Foundation Monitoring Based on FST-ATTNet by WEI Huanwei, ZHAO Jizhang, ZHENG Xiao, TAN Fang, LIU Cong

“…The model is validated using monitoring data of the measured strain on a pile-based adjustable wind turbine foundation, and its performance is evaluated using the coefficient of determination (<italic>R</italic>²) and mean squared error (<italic>MSE</italic>) metrics.Results and Discussions　Validation experiments based on measured data show that FST-ATTNet has the following advantages: (1) Superior performance compared to traditional models: FST-ATTNet outperforms traditional sequence models in data reconstruction tasks, including Long Short-Term Memory (LSTM), Gated Recurrent Unit (GRU), Bidirectional GRU (BiGRU), Temporal Convolutional Network (TCN), and Transformer, achieving excellent results with <italic>R</italic>² of 0.98 and <italic>MSE</italic> of 0.66. …”
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Comparison of growth, photosynthetic, and chlorophyll fluorescence characteristics of different native cultivars in Castanea henryi by XU Bin, WU Jingyi, WU Jianfeng, SU Xinyu, ZHAO Junru, ZHU Zhoujun, LI Jianxin

“…With the Li-6800 system maintained at identical chamber settings to those used for light-response curve measurements, a 30-minute light adaptation was performed before parameter determination. The recorded parameters included: initial fluorescent light (F0); maximal fluorescence (Fm), PS Ⅱ primary light energy conversion efficiency (Fv/Fm), potential efficiency of primary conversion of PS Ⅱ (Fv/F0), actual photochemical efficiency of PS Ⅱ (Fv'/Fm'), photochemical quenching coefficient (qP), electron transport rate (ETR), and non-photochemical quenching (NPQ). …”
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Approaches to the Assessment Liabilities’Analysis by T. V. Pashchenko, N. N. Shakirova

“…They applied such research methods as monographic, data systematization and its analysis. …”
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Energy use tendencies in a resource-abundant country: the case of Canada by Mustafa Naimoğlu, İsmail Kavaz

“…In the study, the Fourier Engle-Granger Cointegration Test, which is one of the current econometric methods, was used, and then FMOLS, CCR and DOLS methods were utilized for the estimation of the short- and long-term coefficients. …”
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Associations between pathophysiological traits and symptom development in retrospective analysis of V30M and V122I transthyretin amyloidosis by Sameer U. Kini, Ha My Thi Vy, Madhav Subramanian, Parasuram M. Krishnamoorthy, Son Q. Duong, Ghislain Rocheleau, Jagat Narula, Ron Do, Girish N. Nadkarni

“…Among African Americans (AA) and Hispanic/Latinx Americans (HA) from the Mount Sinai BioMe Biobank (n = 28,718), a case-control style Phenome-Wide Association Study (PheWAS; odds ratio [95% confidence interval]) of V122I for phenotypic and echocardiogram traits (β coefficients [95 % CI]) determined gene pleiotropy. Results: Among V30M profiles, 96 (52.4%) were symptomatic, expressing upregulated neutrophil activity (p < 10-16), IL-6/JAK/STAT3 signaling (p < 10-3), and downregulated CD4+T cell expression (p = 0.009), compared to their asymptomatic counterparts. …”
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Joint processing of measurements in a rangefinder-doppler multistatic radar system by E. G. Borisov

“…The article considers the option of organizing joint processing of radar information in a multistatic rangefinder - doppler radar system. The least-squares method is used to obtain analytical expressions for oblique ranges and radial velocities of targets during joint processing of range-finding measurements of various types. …”
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