Quantitative evaluation of liver fibrosis based on ultrasound radio frequency signals: An animal experimental study
Sign Up to like & getrecommendations! Published in 2021 at "Computer methods and programs in biomedicine"
DOI: 10.1016/j.cmpb.2020.105875
Abstract: BACKGROUND Chronic liver disease is an important cause of liver failure and death worldwide, and liver fibrosis is a common pathological process of most chronic liver diseases. There still lacks a useful tool for evaluating… read more here.
Keywords: frequency signals; fibrosis; liver fibrosis; radio frequency ... See more keywords
Non-invasive recording of high-frequency signals from the human spinal cord
Sign Up to like & getrecommendations! Published in 2022 at "NeuroImage"
DOI: 10.1016/j.neuroimage.2022.119050
Abstract: Throughout the somatosensory system, neuronal ensembles generate high-frequency signals in the range of several hundred Hertz in response to sensory input. High-frequency signals have been related to neuronal spiking, and could thus help clarify the… read more here.
Keywords: human spinal; high frequency; spinal cord; frequency signals ... See more keywords
Electrically tunable detector of THz-frequency signals based on an antiferromagnet
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0031053
Abstract: A concept of an electrically tunable resonance detector of THz-frequency signals based on an antiferromagnetic/heavy metal (AFM/HM) heterostructure is proposed. The conversion of a THz-frequency input signal into DC voltage is done using the inverse… read more here.
Keywords: electrically tunable; thz frequency; frequency signals; frequency ... See more keywords
K-Means Clustering Approach to UAS Classification via Graphical Signal Representation of Radio Frequency Signals for Air Traffic Early Warning
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Intelligent Transportation Systems"
DOI: 10.1109/tits.2022.3202011
Abstract: Small Unmanned Aerial Systems (UASs) provide significant benefits to economies across the world on a daily basis but increased usage brings a number of security challenges. For example, identifying small UASs operating with malicious intent… read more here.
Keywords: frequency signals; graphical signal; classification; means clustering ... See more keywords
Adaptive reception of aggregate frequency signals in an underwater acoustic communications channel under different types of interference
Sign Up to like & getrecommendations! Published in 2017 at "Acoustical Physics"
DOI: 10.1134/s1063771017030058
Abstract: The paper presents the results of experimental research on a multichannel underwater acoustic communications system that increases the digital information rate by aggregate frequency signals under deepsea conditions with multipath signal propagation. Quantitative estimates of… read more here.
Keywords: frequency signals; acoustic communications; aggregate frequency; types interference ... See more keywords