Results 41 to 50 of about 16,511 (214)
Sensors, 2023 As the number and length of high-speed railway tunnels increase in China, implicit defects such as insufficient lining thicknesses, voids, and poor compaction have become increasingly common, posing a serious threat to train operation safety.
Yang Lei +8 more
doaj +1 more source
Compact Tabletop Magnetic Resonance Elastography for Mapping Soft Tissue Viscoelasticity
Advanced Science, EarlyView.This work introduces a compact, low‐cost tabletop magnetic resonance elastography platform for high‐resolution viscoelastic mapping in soft‐tissue specimens. Using this method in human colorectal liver metastases, we demonstrate fully automated biomechanical profiling of treatment response and show that heterogeneity‐based metrics outperform ...
Weijie Zhao +19 more
wiley +1 more source
Speech Source Separation Using Variational Autoencoder and Bandpass Filter
IEEE Access, 2020 Speech source separation is essential for speech-related applications because this process enhances the input speech signal for the main processing model.
Hao Duc Do +2 more
doaj +1 more source
Advanced Science, EarlyView.Human neutrophils exist as two epigenetically imprinted subtypes defined by stable CD177 expression or absence — a ratio that persists across time, circadian rhythms, and inflammation. CD177− neutrophils display a distinct molecular landscape enriched in arginase 1 and lipid metabolism markers, accumulate in head‐and‐neck tumors, and associate with ...
Marcel Jung +39 more
wiley +1 more source
A Data-Cleaning Approach to Robust Multisensor Detection of Improper Signals
IEEE Access, 2019 We consider the problem of detecting the presence of an improper complex-valued signal, common among two or more sensors (channels), in the presence of spatially independent, colored improper noise and additive outliers.
Jitendra K. Tugnait
doaj +1 more source
A Fault Diagnosis Method of Modular Analog Circuit Based on SVDD and D–S Evidence Theory
Sensors, 2021 In the actual fault diagnosis process of an analog circuit, there is often a problem due to the lack of fault samples, leading to the low-accuracy of diagnostic models.
Peng Sun +4 more
doaj +1 more source
Advanced Electronic Materials, EarlyView.This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley +1 more source
Cover-Ended Resonators to Increase Corona Discharge Thresholds in Microstrip Bandpass Filters
, 2021 In this work, corona discharge breakdown thresholds in microstrip bandpass filters are studied. If a gas is subjected to strong electric fields, gas breakdown may occur with severe consequences for microwave devices.
Aitor Morales-Hernandez +9 more
core +1 more source
Multi-mode resonator for ultra-wide bandpass filter with good stopband performance [PDF]
, 2020 A multimode resonator is proposed, containing five resonant modes that are incorporated in the passband forming. The structure is based on a dielectric substrate suspended in a metallic case that allows solving problem of electromagnetic compatibility ...
Карцан, Игорь Николаевич +4 more
core +1 more source
IEEE Open Journal of Antennas and Propagation, 2021 This paper presents a novel method for cross-band scattering cancelation in closely-spaced antennas inspired by absorptive/reflectionless filtering principles.
Shiyan Wang +5 more
doaj +1 more source