SAR Experiments Using a Conformal Antenna Array Radar Demonstrator by Peter Knott, Thomas Bertuch, Helmut Wilden, Olaf Peters, Andreas R. Brenner, Ingo Walterscheid

“…The objective of the “Electronic Radar with Conformal Array Antenna” (ERAKO) demonstrator system which has been developed at the Fraunhofer Institute for High Frequency Physics and Radar Techniques (FHR) is to demonstrate the feasibility of an active electronically scanned antenna for conformal integration into small and medium sized airborne platforms. …”
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Vibrational Energy Flow Analysis of Corrected Flexural Waves in Timoshenko Beam – Part I: Theory of an Energetic Model by Young-Ho Park, Suk-Yoon Hong

“…In this paper, an energy flow model is developed to analyze transverse vibration including the effects of rotatory inertia as well as shear distortion, which are very important in the Timoshenko beam transversely vibrating in the medium-to-high frequency ranges. The energy governing equations for this energy flow model are newly derived by using classical displacement solutions of the flexural motion for the Timoshenko beam, in detail. …”
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Expansion of dynamic range of sampling and storage device by weight integration of narrow-band oscillation by B. D. Zhenatov

“…The most bottleneck of high-frequency digital radio receivers in terms of dynamic characteristics is the process of analog-to-digital conversion. …”
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Near-Field Hierarchical Localization for Integrated Sensing and Communication by Giorgos Stratidakis, Sotiris Droulias, Angeliki Alexiou

“…On the other hand, high frequency and highly directional communications offer a new framework of improved resolution capabilities in the angular and range domains. …”
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Dopaminergic Modulation of Striatal Inhibitory Transmission and Long-Term Plasticity by Elizabeth Nieto Mendoza, Elizabeth Hernández Echeagaray

“…Analyzing DA participation in striatal GABAergic plasticity we observed that high frequency stimulation (HFS) of GABAergic interneurons in the presence of DA at a low concentration (200 nM) favored the expression of inhibitory striatal LTD, whereas higher concentration of DA (20 μM) primarily induced LTP. …”
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Perioperative Radiotherapy in the Management of Rectal Cancer by Lars Påhlman

“…In an attempt to reduce the high frequency of local recurrence, perioperative radiotherapy has been used extensively, alone or in combination with chemotherapy. …”
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Preparation of Microfiber Grating for Real-Time Sensing of Escherichia Coli Concentration by Qingyan Qiu, Min Dai, Caidong Luo, Ying Mu, Wei Du, Yu Li, Jun Luo, Rong Li

“…In this article, microfiber gratings (MFGs) were fabricated by using a high-frequency CO2 laser. The number of periods is 30, and the length of the period is 600 μm. …”
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Scattering Improves Temporal Resolution of Vision: A Pilot Study on Brain Activity by Francisco J. Ávila

“…Finally, the combination of the Arduino-based flicker visual stimulator and EEG revealed the excitatory/inhibitory stimulation capabilities of the high-frequency beta oscillation based on the alternation of an achromatic and a chromatic stimulus displayed in the CFF.…”
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An On‐Chip Second‐Order Elastic Topological Insulator for Demultiplexing Out‐of‐Plane and In‐Plane Corner Modes by Yafeng Chen, Lei Fan, Jie Zhu, Zhongqing Su

“…In this work, an on‐chip SETI that simultaneously hosts both high‐frequency out‐of‐plane and in‐plane corner states at ≈0.2 MHz is introduced. …”
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Failure Diagnosis for Demagnetization in Interior Permanent Magnet Synchronous Motors by Takeo Ishikawa, Naoto Igarashi, Nobuyuki Kurita

“…This paper investigates the influence of demagnetization by using several methods: the 3D finite element analysis (FEA) of the motor, the measurement of high-frequency impedance, and the measurement and FEA of the stator voltage and current under vector control. …”
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Genetic Hearing Loss and Gene Therapy by Nathanial T Carpena, Min Young Lee

“…Genetic hearing loss crosses almost all the categories of hearing loss which includes the following: conductive, sensory, and neural; syndromic and nonsyndromic; congenital, progressive, and adult onset; high-frequency, low-frequency, or mixed frequency; mild or profound; and recessive, dominant, or sex-linked. …”
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Integrated Structural Health Assessment Using Piezoelectric Active Sensors by Jeannette R. Wait, Gyuhae Park, Charles R. Farrar

“…Both the Lamb wave and impedance methods operate in high frequency ranges at which there are measurable changes in structural responses even for incipient damage such as small cracks, debonding, or loose connections. …”
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Aerodynamic Load Reduction on a Supercritical Airfoil Using Tilted Microjets by Cheng Xue, Feng Deng, Haifeng Wang, Ning Qin

“…Microjets arranged on the wing surfaces of civil transport aircraft have been shown to have great potential in suppressing high-frequency gust loads. This paper presents a study of aerodynamic load reduction on a supercritical airfoil using tilted microjets by solving the Reynolds-averaged Navier-Stokes (RANS) equations. …”
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Wavelet Domain Multidictionary Learning for Single Image Super-Resolution by Xiaomin Wu, Jiulun Fan, Jian Xu, Yanzi Wang

“…Image super-resolution (SR) aims at recovering the high-frequency (HF) details of a high-resolution (HR) image according to the given low-resolution (LR) image and some priors about natural images. …”
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Order Spectrum Analysis for Bearing Fault Detection via Joint Application of Synchrosqueezing Transform and Multiscale Chirplet Path Pursuit by Jiesi Luo, Shaohui Zhang, Mingen Zhong, Zusheng Lin

“…The SST method as its high frequency resolution merits is used to estimate the frequency parameters for the parameter settings of the MSCPP method, that will resolve the high computation problem of the MSCPP method to a certain degree, so as to extensively use the high accuracy of the MSCPP method in IF estimation. …”
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SDNN/RMSSD as a Surrogate for LF/HF: A Revised Investigation by Hui-Min Wang, Sheng-Chieh Huang

“…Through a time-frequency transformation, the ratio of low- and high-frequency power LF/HF represents the sympatho-vagal balance of the autonomic nervous system (ANS). …”
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Abnormal chirality in antiferromagnetic resonance modes of van der Waals 2D magnets by Chao Chen, Cuixiu Zheng, Shanshan Hu, Hao-Hsuan Chen, Jianwei Zhang, Yaowen Liu

“…Beyond the typical observations of a linear increase in high-frequency resonance mode and a linear decrease in low-frequency resonance mode, we have identified a distinct magnetization precession chirality in the CrI3 bilayer at low magnetic fields: Spins in different layers exhibit opposite precession chirality. …”
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Research on Image Recognition of Building Wall Design Defects Based on Partial Differential Equation by Xiwen Yu, Kai Wang, Shaoxuan Wang

“…The second-order partial differential diffusion equation and the fourth-order partial differential equation are used to recognize the high-frequency and low-frequency bands of the image, respectively. …”
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THE INTESTINAL INSUFFICIENCY SYNDROME AND THE SYSTEMIC INFLAMMATORY RESPONSE SYNDROME IN ACUTE PERITONITIS IN CHILDREN by Cristina Șerban, Georgiana Bianca Constantin, Daniela Mihalache, Alina Calin, Norin Forna, Mădălin Guliciuc

“…Results:We analyzed the risk factors that allowed us to propose a prognostic score in assessing the severity of acute peritonitis in children. Conclusions:The high frequency of complications, the increased interest in this pathology from the perspective of abdominal sepsis, raises the issue of acute peritonitis in children as a public health problem. …”
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Field Measurement and Energy Analysis of Ground-Borne Vibration around High-Speed Railway Viaduct by Yanmei Cao, Qi Xiang, Boyang Li, Zhaoyang Li

“…The ground vibrations attenuate gradually as the distance from the railway track increases, in which the high-frequency components above 50 Hz attenuate faster, low-frequency components below 8 Hz continuously decay in the near field, and medium-frequency components within 8−50 Hz decay slower with a longer transmission distance. …”
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