Dynamic Model of MR Dampers Based on a Hysteretic Magnetic Circuit by Pengfei Guo, Jing Xie, Xinchun Guan

“…The damping force in the high-frequency case obviously lags behind the coil current, which exhibits a hysteresis loop in the current-force plane. …”
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International Gold Price Forecast Based on CEEMDAN and Support Vector Regression with Grey Wolf Algorithm by Wanbo Lu, Tingting Qiu, Wenhui Shi, Xiaojun Sun

“…This hybrid model combines the methodology of complex systems with machine learning techniques, making it more appropriate for analyzing relationships such as high-frequency dependences and solving complex nonlinear problems. …”
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Approach to Predict Land Subsidence in Old Goafs considering the Influence of Engineering Noise by Chao Du, Fajin Zu, Chunpeng Han

“…In order to reduce the influence of engineering noise on the accuracy of subsidence prediction, it is proposed to use the Daubechies (DB) wavelet to decompose the original subsidence time series; the items with the low-frequency trend, after decomposition, are predicted using long short-term memory (LSTM) model, items with high-frequency noise used the autoregressive (AR) time series model to make predictions, and the prediction results of the low-frequency trend term and the high-frequency noise term are summed to obtain the total time series predicted value. …”
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Energy Flow Boundary Element Method for Vibration Analysis of One and Two Dimension Structures by Ho-Won Lee, Suk-Yoon Hong, Do-Hyun Park, Hyun-Wung Kwon

“…In this paper, Energy Flow Boundary Element Method (EFBEM) was developed to predict the vibration behavior of one- and two-dimensional structures in the medium-to-high frequency ranges. Free Space Green functions used in the method were obtained from EFA energy equations. …”
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Dual-Band Shared-Aperture Antenna with Pattern and Polarization Diversity by Jia Cheng, Tianyu Gao, Dongpeng Han, Changfei Zhou

“…A medium polarization converter is used to achieve circular polarization and improve the broadside gain in the high-frequency band. The simulation results show that the antenna has a stable omnidirectional radiation pattern in the low-frequency band and a directional radiation pattern in the high-frequency band.…”
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Research on the Method of Detecting the Spreading Rate of the Simultaneous Crushed Stone Sealing Layer Based on Machine Vision by Xin Rong, Honghai Liu, Xinmin Gao, Qinghua Bian

“…By decomposing the image with two-dimensional discrete wavelet, the high-frequency and low-frequency coefficients are extracted. …”
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Combined Technology for the Parts Recovery Operating in Stress Factor Conditions by Olena V. Berezshnaya, Valeriy D. Kassov, Eduard P. Gribkov

“…It was established that retarded cooling in the covering agent of deposited samples after local heating with high-frequency currents provides the increase in the average pressure ferrite during increase in the grain size. …”
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Research on Wheel-Rail Local Impact Identification Based on Axle Box Acceleration by Yuanjin Ji, Junwei Zeng, Wenjing Sun

“…After weighted reconstruction using denoised high-frequency components and low-frequency information components, data processing was finally optimized via HHT. …”
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Near-infrared spectroscopy–guided personalized repetitive transcranial magnetic stimulation for bipolar depression: a case report by Chun-Hung Chang, Chun-Hung Chang, Chun-Hung Chang, Wen-Chun Liu, Po-Han Chou

“…IntroductionTranscranial magnetic stimulation (TMS) is a common treatment for depression, particularly in patients unresponsive to conventional therapies. High-frequency (10 Hz), low-frequency (1 Hz), or bilateral (left, high-frequency; right, low-frequency) stimulation of the dorsolateral prefrontal cortex (DLPFC) has been demonstrated to be effective in studies based on prefrontal asymmetry theory, which suggests that depression is associated with reduced left frontal function and increased right frontal function. …”
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Seasonal Features and a Case Study of Tropopause Folds over the Tibetan Plateau by Jiali Luo, Wenjun Liang, Pingping Xu, Haiyang Xue, Min Zhang, Lin Shang, Hongying Tian

“…The westerly jet movement controls the displacement of the high-frequency folding region over the TP. The region of high-frequency tropopause folds is located in the southern portion of the plateau in spring and moves northward in summer. …”
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FTA-Net: Frequency-Temporal-Aware Network for Remote Sensing Change Detection by Taojun Zhu, Zikai Zhao, Min Xia, Junqing Huang, Liguo Weng, Kai Hu, Haifeng Lin, Wenyu Zhao

“…First, it has a two-branch Transformer-INN feature extractor using a Lite-Transformer that utilizes remote attention for low-frequency global features, and a invertible neural network that focuses on extracting high-frequency local information. The semantic information and details of the object in both high-frequency and low-frequency feature maps are further strengthened by fusing the high-frequency local features and low-frequency global representations. …”
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Nonlinear Noise Compensation in an Integration System of Fiber-Wireless Communication and Free Space Optical Communication by Long Chen, Miao Liu, Zhijun Tang

“…This integration system, combining the benefits of FSO communication and high-frequency wireless communication, as well as the high-frequency efficiency and anti-interference to multipath fading of the multicarriers orthogonal frequency division multiplexing (OFDM) modulation, can increase the capacity and flexibility of the system. …”
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Improved Clonal Selection Algorithm Based on Biological Forgetting Mechanism by Chao Yang, Bing-qiu Chen, Lin Jia, Hai-yang Wen

“…The antibody candidate set generated by the clonal selection algorithm has only a small number of antibodies with high antigen affinity to obtain high-frequency mutations. Among other antibodies, some low-affinity antibodies are replaced by new antibodies to participate in the next clonal selection. …”
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Integrating IoT data and reinforcement learning for adaptive macroeconomic policy optimization by Cong Peng, Yongshan Zhang, Liheng Jiang

“…Macroeconomic policy optimization is essential in today’s complex economic environments, yet existing models often struggle to effectively utilize high-frequency IoT data alongside traditional low-frequency indicators, limiting responsiveness to rapid changes. …”
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Vibration Analysis and Experimental Study of GIS Busbar Enclosure under Electric Force by Dingge Yang, Yuzhao Li, Yanhua Han, Bin Ding, Liangshu Li, Jingfeng Wu

“…The study shows that the GIS enclosure shell will produce vibration at the two times power frequency and high frequency, which provides an explanation for the high-frequency vibration of busbar shell structure in the ultra-high-voltage substation and provides an objective basis for the design of the busbar enclosure in the ultra-high-voltage substation.…”
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Mixed Stimulus-Induced Mode Selection in Neural Activity Driven by High and Low Frequency Current under Electromagnetic Radiation by Lulu Lu, Ya Jia, Wangheng Liu, Lijian Yang

“…Meanwhile, the mode selection of the neuron electrical activity is much dependent on the amplitude B of the high frequency current under the same noise intensity, and the high frequency response is selected preferentially by applying appropriate parameters and noise intensity. …”
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New Diagnostic Techniques for Esophageal Disorders by A Lazarescu

“…These include capsule pH-metry, high-resolution manometry, impedance combined with either pH-metry or manometry, and high-frequency ultrasound. Capsule pH-metry is useful in children and in patients who cannot tolerate the conventional pH-metry catheter. …”
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Research on the Influence of Volatility of International Energy Commodity Futures Market on CPI in China by Keyao Lin, Chao Xun, Fei Wang, Angela Chi Chao, Zhenyu Du

“…Empirical analysis results show that (1) the influence of high-frequency explanatory variables on low-frequency CPI is different. …”
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Super-Resolution of Magnetic Resonance Images via Convex Optimization with Local and Global Prior Regularization and Spectrum Fitting by Naoki Kawamura, Tatsuya Yokota, Hidekata Hontani

“…However, the nature of the super-resolution is to restore high-frequency components in frequency domain rather than upsampling in signal domain. …”
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Nursing Analysis Based on Medical Imaging Technology before and after Coronary Angiography in Cardiovascular Medicine by Qin Li, Yangyang Yuan, Guangyu Song, Yonghua Liu

“…The algorithm first decomposes the preregistered source medical image by NSST, takes the subimages of different scales as training images, and optimizes the subdictionaries of different scales; then convolution and sparse the subimages on each scale encoding to obtain the sparse coefficients of different subimages; secondly, the combination of improved L1 norm and improved spatial frequency (novel sum-modified SF (NMSF)) is used for high-frequency subimage coefficients, and the fusion of low-frequency subimages improved the rule of combining the L1 norm and the regional energy; finally, the final fused image is obtained by inverse NSST of the fused low-frequency subband and high-frequency subband. …”
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