Results 41 to 50 of about 3,120,826 (295)
Current Protocols in Magnetic Resonance Imaging, 2001 AbstractThe bulk magnetization represents the equilibrium value of the magnetization when all spins have aligned themselves parallel to the main field. When this magnetization is tipped into the transverse plane, it precesses about the main field. This precession generates a changing flux through the face of an appropriately placed coil inducing an ...
Cheng, Yu‐chung Norman +1 more
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Class Imbalanced Medical Image Classification Based on Semi-Supervised Federated Learning
Applied Sciences, 2023 In recent years, the application of federated learning to medical image classification has received much attention and achieved some results in the study of semi-supervised problems, but there are problems such as the lack of thorough study of labeled ...
Wei Liu, Jiaqing Mo, Furu Zhong
doaj +1 more source
IEEE Photonics Journal, 2022 When used for object tracking, the discriminative correlation filter (DCF) is effective, but its performance is often burdened by undesirable boundary effects.
Junnan Wang +4 more
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Optimal Strategies for Sinusoidal Signal Detection [PDF]
, 2002 We derive and study optimal and nearly-optimal strategies for the detection of sinusoidal signals hidden in additive (Gaussian and non-Gaussian) noise. Such strategies are an essential part of algorithms for the detection of the gravitational Continuous ...
A. Abramovici +9 more
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Sequential joint signal detection and signal-to-noise ratio estimation
, 2017 The sequential analysis of the problem of joint signal detection and signal-to-noise ratio (SNR) estimation for a linear Gaussian observation model is considered.
Fauß, M. +3 more
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, 2017 Due to the widespread deployment of Global Navigation Satellite Systems (GNSSs) for critical road or urban applications, one of the major challenges to be solved is the provision of integrity to terrestrial environments, so that GNSS may be safety used ...
Egea-Roca, Daniel +3 more
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Coverage Characteristics Analysis of Heterogeneous Optical Beams based Visible Light Communications
Guangtongxin yanjiu, 2022 Due to the research paradigm of the conventional Visible Light Communications (VLC), researchers usually assume that the optical sources follow the Lambertian spatial radiation characteristics.
Ju-peng DING +4 more
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TFAW: wavelet-based signal reconstruction to reduce photometric noise in time-domain surveys
, 2018 There have been many efforts to correct systematic effects in astronomical light curves to improve the detection and characterization of planetary transits and astrophysical variability.
del Ser, D., Fors, O., Núñez, J.
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Relay-Assisted Technology in Optical Wireless Communications: A Survey
IEEE Access, 2020 When the distance between the source and the target is long, the signal will be affected by atmospheric turbulence, weather conditions and obstacles, which cannot support the information transmission.
Wenwen Liu +4 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source