Results 61 to 70 of about 329,555 (323)

Convergent-Beam EMCD: Benefits, Pitfalls, and Applications

, 2017
Energy-loss magnetic chiral dichroism (EMCD) is a versatile method for studying magnetic properties on the nanoscale. However, the classical EMCD technique is notorious for its low signal to noise ratio (SNR). Here, we study the theoretical possibilities
Löffler, Rubino, Schattschneider, Schattschneider, Schattschneider, Stöger-Pollach   +5 more
core   +1 more source

Signal-to-noise ratio of the MEG signal after preprocessing [PDF]

, 2014
Background Magnetoencephalography (MEG) provides a direct measure of brain activity with high combined spatiotemporal resolution. Preprocessing is necessary to reduce contributions from environmental interference and biological noise. New method The
Aurtenetxe, Sara, González Moreno, Alicia, López García, María Eugenia, Maestú, Fernando, Nevado, Angel, Pozo Guerrero, Francisco del   +5 more
core   +2 more sources

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

Quantitative Evaluation of Display Contrast of Gd-EOB-DTPA-Enhanced Magnetic Resonance Images: Effects of the Flip Angle and Grayscale Gamma Value

Radiology Research and Practice, 2019
Introduction. Display contrast can be changed nonlinearly by manipulating the gamma value of the grayscale. We investigated the contrast of the hepatobiliary-phase images acquired with different flip angles (FAs) and displayed with different gamma values
Yusuke Inoue, Hirofumi Hata, Ai Nakajima, Keiji Matsunaga, Yusuke Ohzeki, Tetsuya Hashimoto, Hiroki Haradome   +6 more
doaj   +1 more source

Improving the signal-to-noise ratio of single-pixel imaging using digital microscanning.

Optics Express, 2016
Single-pixel cameras provide a means to perform imaging at wavelengths where pixelated detector arrays are expensive or limited. The image is reconstructed from measurements of the correlation between the scene and a series of masks.
Ming-jie Sun, M. Edgar, D. Phillips, G. Gibson, M. Padgett   +4 more
semanticscholar   +1 more source

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

Advanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto, Sergey Dayneko, Antoine Pavesic Junior, Nicholas Sandor, Alexander Hart, Yuki Haruta, Magdalena Bazalova‐Carter, Marcos J. L. Santos, Makhsud I. Saidaminov   +8 more
wiley   +1 more source

An Anti-Mainlobe Suppression Jamming Method Based on Improved Blind Source Separation Using Variational Mode Decomposition and Wavelet Packet Decomposition

Sensors
Mainlobe suppression jamming significantly degrades radar detection performance. The conventional blind source separation (BSS) algorithms often fail under high-jamming-to-signal-ratio (JSR) and low-signal-to-noise-ratio (SNR) conditions.
Ruike Li, Huafeng He, Xiang Liu, Liyuan Wang, Yongquan You, Zhen Li, Xiaofei Han   +6 more
doaj   +1 more source

The Wiener Filter-Based Adaptive Denoising for Pseudo Analogy Video Transmission

IEEE Access, 2022
With the popularity of video conferences, video calls and other activities, video transmission has been widely used. To meet a huge number of subscribers’ requirements, the mobile video transmission scheme needs to overcome some disadvantages ...
Wanning He, Xin-Lin Huang, Pengfei Li
doaj   +1 more source

Design of an adaptive CubeSat transmitter for achieving optimum signal-to-noise ratio (SNR)

IOP Conference Series: Materials Science and Engineering, 2017
CubeSat technology has opened the opportunity to conduct space-related researches at a relatively low cost. Typical approach to maintain an affordable cubeSat mission is to use a simple communication system, which is based on UHF link with fixed-transmit power and data rate.
F D Jaswar, T A Rahman, M N Hindia, Y A Ahmad   +3 more
openaire   +1 more source

Determination of signal-to-noise ratios and spectral SNRs in cryo-EM low-dose imaging of molecules [PDF]

Journal of Structural Biology, 2009
Attempts to develop efficient classification approaches to the problem of heterogeneity in single-particle reconstruction of macromolecules require phantom data with realistic noise models. We have estimated the signal-to-noise ratios and spectral signal-to-noise ratios for three steps in the electron microscopic image formation from data obtained ...
William T, Baxter, Robert A, Grassucci, Haixiao, Gao, Joachim, Frank   +3 more
openaire   +2 more sources