Results 41 to 50 of about 177,513 (261)

Sparse Blind Deconvolution with Nonconvex Optimization for Ultrasonic NDT Application

Sensors, 2020
In the field of ultrasonic nondestructive testing (NDT), robust and accurate detection of defects is a challenging task because of the attenuation and noising of the ultrasonic wave from the structure.
Xuyang Gao, Yibing Shi, Kai Du, Qi Zhu, Wei Zhang   +4 more
doaj   +1 more source

A consistency method of discharge detection results at solar‐blind ultraviolet based on a radiation transmission model

IET Science, Measurement & Technology, 2022
Solar‐blind ultraviolet (UV) discharge detection based on UV signals in the solar‐blind band from 240 to 280 nm is an effective non‐contact discharge detection method for electrical equipment, but there is still a problem that the detection results of ...
Yunpeng Liu, Yonglin Li, Jianghai Geng, Muhan Cui, Shilong Huang   +4 more
doaj   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

FEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero, Maria Kopsida, Nathalie Arendt, Hans Lennernäs, Markus Sjöblom, Femke Heindryckx   +5 more
wiley   +1 more source

Blind detection of cyclostationary signals based on multi‐antenna beamforming technology

IET Communications, 2021
Cyclostationary feature detection is one of the widely used spectrum sensing techniques. Its greatest advantage is that it can effectively separate the signal from the noise under the condition of a low signal‐noise ratio (SNR).
Jie Wang, Rui Gao, Ding Ye, Zhenghua Zhang   +3 more
doaj   +1 more source

Cyclic azapeptide CD36 ligand attenuates cardiac injury and reduces long‐chain fatty acid accumulation after myocardial ischemia–reperfusion in mice

FEBS Open Bio, EarlyView.
In a murine model of myocardial ischemia and reperfusion (MI/R), the CD36 azapeptide ligand MPE‐298 reduces cardiac injury and transiently lowers left ventricular long‐chain fatty acids (LCFAs) accumulation 3 h after reperfusion, accompanied by a decrease of oxidative stress and inflammation‐associated genes' expression in the heart and adipose tissue.
Jade Gauvin, Naghme Radmannia, David N. Huynh, Liliane Ménard, Caroline Daneault, Maïté Veilleux, Ahsanullah Ahsanullah, André C. Carpentier, William D. Lubell, Matthieu Ruiz, Huy Ong, Sylvie Marleau, Simon‐Pierre Gravel   +12 more
wiley   +1 more source

An improved blind detection algorithm of chaos Hopfield neural network

Dianxin kexue, 2018
In order to improve the flexibility of the activation function of the blind detection algorithm in Hopfield neural network,an activation function with better nonlinear approximation ability near the origin was proposed.For the case where the algorithm ...
Dawei YU, Shaowei CHEN, Shujuan YU
doaj  

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

ICA based blind detection scheme in space-time block coding communications

Tongxin xuebao, 2007
Space-time block coding（STBC） schemes are capable of improving system performance by using transmit diversity strategy and specific coding schemes.Nevertheless,they need precise channel state information（CSI） at the receiver end in order to achieve good ...
XU Hong-ji 1, LIU Ju 1, GU Bo1, HU Hui-bo1   +3 more
doaj  

Computationally Efficient Wideband Spectrum Sensing through Cumulative Distribution Function and Machine Learning

Journal of Communications Software and Systems
Blind spectrum sensing (BSS) is crucial for identifying unknown signals in scenarios with limited prior knowledge. Traditional methods face challenges with unknown and timevarying signals, especially in the presence of noise interference.
Jakub Nikonowicz, Mieczysław Jessa, Łukasz Matuszewski   +2 more
doaj   +1 more source

Blind weak signal detection via dictionary learning in time-spreading distortion channels using vector sensors [PDF]

JASA Express Letters
This paper presents a blind passive signal detection method for underwater sparse time-spreading distortion (TSD) channels, employing a dictionary learning (DL) algorithm.
Rami Rashid, Ali Abdi, Zoi-Heleni Michalopoulou   +2 more
doaj   +1 more source