Application of Low-Frequency Processing Method Based on VMD Algorithm in Blasting Signal Processing by Bei Jia, Shenglin Li, Dianshu Liu, Shuaifeng Wu

“…In view of the shortcomings of the existing methods, such as cumbersome calculation and limited scope of application, a method based on variational mode decomposition (VMD) to remove low-frequency noise was proposed. …”
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Interactions of Foundation Pit on the Underlying Adjacent Existing Underground Structures by Wanzhong Xu, Baohua Liu, Jingshuo Liu, Chun Guo

“…The influence of foundation pit excavation on deformation and stability of the supporting structure of underlying adjacent existing tunnel is a comprehensive geotechnical engineering problem, including unloading effect of foundation pit excavation and the coupling effect of deformation of the tunnel surrounding rock and supporting structure. Using numerical calculation methods, this paper changes the different excavation depths and widths of foundation pit and discusses the evolution law about force and deformation of tunnel supporting structure, and the changing relationship of the axial force of tunnel anchor with the distance between foundation pit and tunnel is obtained and compares the influence of different excavation way of foundation pit on the axial force of anchor rod near the existing tunnel. …”
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Thermal and mass diffusion in chemically reactive, radiative hybrid nanofluid (Cu and TiO2) flow over a rotating disk by Raja Ram Meena, Pooja Sharma

“…The flow characteristics are significantly influenced by variations in heat generation, thermal radiation, and MHD parameters. The calculated values of shear stress, Nusselt, and Sherwood numbers at the surface of the disk are also incorporated for complete verification. …”
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Recognition and Localization of Target Images for Robot Vision Navigation Control by Muji Chen

“…Then, target image recognition and linear fitting are performed to obtain target image positioning. The system calculates the angle and distance of the mobile robot, offsetting the target image in real time, adjusting the output signal, and controlling the mobile robot to realize path tracking. …”
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Two-Dimensional Lattice Complexity Features of Abdominal CT Images to Predict Patient Survival After Hepatectomy for Hepatocellular Carcinoma by Yu Wang, Xiaoqiong Jiang, Shi Xu, Daguan Ke, Ruixia Wu

“…The two-dimensional Hilbert curve was used to maintain both local and global structural information to calculate the lattice complexity features. In addition, gray-level co-occurrence matrix features and local binary features were incorporated. …”
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Dynamic Analysis and Scale Optimization of Prefabricated Building Wall Panel Installation by Jiang Mingyang, Zhang Lin, Liu Hongbin, Sima Mingyang, Yu Ningtao

“…The scale optimization model of the landing mechanism, based on the composite shape method and iterative calculation through Matlab software, the optimal scale parameters of each component of the boom lift chain are obtained, and the maximum load of the boom lift cylinder is reduced by about 11%, effectively improving the dynamic performance of the mechanism. …”
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Effect of deterioration on critical infrastructure resilience – framework and application on bridges by Davide Forcellini, Stergios-Aristoteles Mitoulis

“…First, different fit-for purpose materials have been implemented for the calculation of the loss model when the material properties are known. …”
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CuZn40Pb2 ALLOY PLATE FINE BLANKING HOLE WALL QUALITY PREDICTION BASED ON ANALYSIS OF DAMAGE AND MICROSTRUCTURE by LI Feng, FAN WenJie, YUE Yun

“…The flaw probabilities on the fine blanking hole wall in the positive clearance was calculated to be 2. 96 times that of the negative clearance blanking. …”
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A New Modified Model of the Streaming Potential Coupling Coefficient Depends on Structural Parameters of Soil-Rock Mixture by Xin Zhang, Mingjie Zhao, Kui Wang

“…When the compactness remains 85%, the permeability coefficient calculated by the modified KC equation in the range of 10–70% rock content is consistent with the experimental data. …”
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Elastic and nonlinear crack tip solutions comparison with respect to failure probability by Valery Shlyannikov, Andrey Tumanov, Nataliya Boychenko

“…The elastic SIF were experimentally obtained for studied materials and specimen geometries whereas the plastic SIFs were numerically calculated for the same material properties, specimen configurations and loading conditions according to classical J2 and strain gradient plasticity theories. …”
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Investigation of the Specific Retention Volume of the Probe Volume and the Effects on the Polymer-Probe System by Inverse Gas Chromatography by Mustafa Hamdi Karagöz

“…The thermodynamic data calculated for the injection of different amounts of probes were close to each other.…”
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Theoretical Orientation of Mental Health Workers in Turkey by Mustafa Savci, Yasin Demir, Mustafa Kutlu, Ferda Aysan

“…Collected data were analyzed by frequency and percentage calculations. The findings of the study demonstrated that the primary theoretical orientation of psychiatrists and psychologists were cognitive behaviorist therapy, of psychological counselors were constructivist therapy and of social workers were system/family systems therapies. …”
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Assessment of Multi-attribute Flood Risk in the Pearl River Basin Considering the Reasonable Service Life of the Project by WANG Hanye, HUANG Shengzhi, WANG Lu, FANG Wei

“…Based on this, this paper adopts the daily flow data of typicalhydrological stations in the Pearl River Basin from 1997 to 2017, and selects floods by the peaksover threshold method to enrich the flood samples, builds the joint distribution function of floodpeak and volume by Copula function, calculates the joint return period, and builds the flood riskindex with consideration of the joint return period and the reasonable service life of project.The results show that: ① Under the combination of flood peak and flood volume in the same returnperiod, compared with other stations, the risk of flood with high peak or large volume is thehighest in Yujiang River, while risk of flood with high peak and large volume is the highest inLiujiang River (except 10-year return period); ② When the reasonable service life of Type I largewater conservancy project (dam, n=50~100 years) is considered, the risk of flood with high peakor large volume is the highest in Xijiang River; and ③ The risk of flood with high peak and largevolume exceeding the design value is the highest in Liujiang River.…”
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Structure Design and Simulation of a Spherical Coupled Cervical Spine Rehabilitation Robot by Bao Cheng, Liu Fanghua, Cao Yongxin, Wang Zheng

“…The step function is written through the model action in Adams, and the curve obtained from the kinematics simulation is compared and analyzed with the theoretical calculation results. Finally, the transient dynamics analysis is performed on the key parts of the robot through Ansys Workbench, and the stress nephogram of the mechanism is obtained to verify the rationality of its structural design, which lays the foundation for prototype construction and control strategy research.…”
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Experimental and Numerical Investigations of Fretting Fatigue Behavior for Steel Q235 Single-Lap Bolted Joints by Yazhou Xu, Zhen Sun, Yuqing Zhang

“…The normal contact stress, tangential contact stress, and relative slipping displacement at the critical fretting zone were used to calculate FFD values and assess fretting fatigue crack initiation sites, which were in good agreement with SEM observations. …”
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Container Quay Crane Structural Response under Trolley Traveling by Xiong Hu, Kai Dong, Pei Zheng, Zhiwei Sun, Sen Mu

“…The interaction between the trolley and the girder is realized by S-M contact method. The calculated results are basically consistent with the measured signal. …”
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Analysis and forecasting of the dynamics of the gross domestic product per capita by purchasing power parity in Russia by M. O. Govallo, D. D. Lobanova, L. A. Davletshina

“…Based on the results of the calculations, the paper evaluates the forecast indicators and draws conclusions about forecasting the GDP in Russia. …”
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Modelling of Electromagnetic Scattering by a Hypersonic Cone-Like Body in Near Space by Ji-Wei Qian, Hai-Li Zhang, Ming-Yao Xia

“…First, the fluid dynamics equation is numerically solved to obtain the electron density, colliding frequency, and the air temperature around the body. They are used to calculate the complex relative dielectric constants of the plasma sheath. …”
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The Effect of Metal Shielding Layer on Electrostatic Attraction Issue in Glass–Silicon Anodic Bonding by Wenqi Yang, Yong Ruan, Zhiqiang Song

“…Based on theoretical calculations, simulation analysis, and experimental testing, it was determined that the critical size for an individual opening in the metal layer is 180 μm × 180 μm, with the movable part positioned 5 μm from the bottom, which does not lead to failure caused by stiction due to electrostatic pull-in of the detection structure. …”
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Kinematic Reliability Analysis of a 7-DOF Redundant Robot by Li Ding, Jiahui Gu, Ziyi Li, Shaopeng Kang, Rui Ma

“…Since variables in industrial robots are very small relative to their means, the motion error functions are commonly linearized by the first-order Taylor’s formula to simplify calculation, and the failure models in all directions and attitude angles are then established through the probability method over the entire input interval. …”
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