Results 61 to 70 of about 9,228 (164)

Entorhinal Silencing Reveals Energy Cascade Organization of Hippocampal Oscillations

Hippocampus, Volume 36, Issue 1, January 2026.
ABSTRACT Hippocampal theta and gamma rhythms are often viewed as discrete channels supporting distinct cognitive operations. In particular, “gamma multiplexing” models propose that slow and fast gamma bands independently encode separate information streams or memory processes.
Ben Zhao, Yu Qin, Sara N. Burke, Andrew P. Maurer   +3 more
wiley   +1 more source

Taking Advantage of Selective Change Driven Processing for 3D Scanning

Sensors, 2013
This article deals with the application of the principles of SCD (Selective Change Driven) vision to 3D laser scanning. Two experimental sets have been implemented: one with a classical CMOS (Complementary Metal-Oxide Semiconductor) sensor, and the other
Fernando Pardo, Jose A. Boluda, Pedro Zuccarello, Francisco Vegara   +3 more
doaj   +1 more source

Study and Experimental Demonstration of 2‐D Electronically Controlled Continuous Beam Steering With the Combination of Slotted Waveguide and Digital Beamforming in 0.2 THz Band

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
This paper proposed a method that combines frequency scanning based on slotted waveguides with phased‐array technology implemented through digital beamforming to experimentally realise a 2‐D electronically controlled continuous beam scanning antenna within the 197–205 GHz band.
Kai Wang, Chao Li, Shen Zheng, Xiaojun Liu, Guangyou Fang, Yirong Wu   +5 more
wiley   +1 more source

Single-Shot Femtosecond Raster-Framing Imaging with High Spatio-Temporal Resolution Using Wavelength/Polarization Time Coding

Photonics
This paper introduces a single-shot ultrafast imaging technique termed wavelength and polarization time-encoded ultrafast raster imaging (WP-URI). By integrating raster imaging principles with wavelength- and polarization-based temporal encoding, the ...
Yang Yang, Yongle Zhu, Xuanke Zeng, Dong He, Li Gu, Zhijian Wang, Jingzhen Li   +6 more
doaj   +1 more source

On Continuous-Time Gaussian Channels

Entropy, 2019
A continuous-time white Gaussian channel can be formulated using a white Gaussian noise, and a conventional way for examining such a channel is the sampling approach based on the Shannon–Nyquist sampling theorem, where the original continuous-time ...
Xianming Liu, Guangyue Han
doaj   +1 more source

Rotational Invariance in Resting‐State fMRI: A Geometric Framework for Understanding Signal Processing and Connectivity

Concepts in Magnetic Resonance Part A, Volume 2026, Issue 1, 2026.
Resting‐state functional MRI (rsfMRI) analysis relies on complex mathematical operations whose properties and pitfalls are often poorly understood, leading to interpretational errors and suboptimal processing choices. This work presents novel mathematical insights for rsfMRI analysis through three key contributions: (1) a unified geometric framework ...
Chisondi S. Warioba, Gianluigi Veglia
wiley   +1 more source

Parameter Sensitivity Test and Audio Encryption Scheme Design for Multimedia Information Security

International Journal of Digital Multimedia Broadcasting, Volume 2026, Issue 1, 2026.
With the continuous development of information technology, multimedia information faces many security threats. To realize efficient multimedia information processing under the premise of guaranteeing information security, this research analyzes and extracts the parameters of different kinds of information in view of the fact that each of them has ...
Ming Yin, Shi Tang, Deepali
wiley   +1 more source

Visual acuity in larval zebrafish: behavior and histology

Frontiers in Zoology, 2010
Background Visual acuity, the ability of the visual system to distinguish two separate objects at a given angular distance, is influenced by the optical and neuronal properties of the visual system.
Mueller Kaspar P, Biehlmaier Oliver, Haug Marion F, Neuhauss Stephan CF   +3 more
doaj   +1 more source

Widefield Targeted Illumination Microscopy Enables Optically‐Sectioned, Motion‐Resilient Imaging of Neuronal Fibers and Their Dynamics

Laser &Photonics Reviews, Volume 19, Issue 24, December 17, 2025.
Targeted Illumination Microscopy (TIM) enhances widefield fluorescence imaging by selectively illuminating dim neuronal fibers while suppressing bright cell bodies. Using real‐time image processing and a digital micromirror device, TIM achieves high‐contrast, optically sectioned, and motion‐resilient imaging in C.
Yao L. Wang, Tina Thuy N. Nguyen Hoang, Jia Fan, Sahana Gangadharan, Vivek Venkatachalam, Samuel H. Chung   +5 more
wiley   +1 more source

Compressive sensing-based vibration signal reconstruction using sparsity adaptive subspace pursuit

Advances in Mechanical Engineering, 2018
Wireless sensors produce large amounts of data in long-term online monitoring following the Shannon–Nyquist theorem, leading to a heavy burden on wireless communications and data storage. To address this problem, compressive sensing which allows wireless
Lin Zhou, Qianxiang Yu, Daozhi Liu, Ming Li, Shukai Chi, Lanjun Liu   +5 more
doaj   +1 more source