Results 81 to 90 of about 517,162 (287)

Soft Threshold Denoising-Based Environmental Adaptive UAV Signal Modulation Recognition for Small-Sample Scenarios

Drones
As a key technology for wireless signal identification, modulation recognition plays an important role in the fields of unmanned aerial vehicle (UAV) communications, low-altitude spectrum management, etc.
Fang Jin, Yang Shao, Yunhong He, Zhihao Ye, Fangmin He, Zhipeng Lin, Han Xiao   +6 more
doaj   +1 more source

Cooperative modulation recognition based on one-dimensional convolutional neural network for MIMO-OSTBC signal

Tongxin xuebao, 2021
To recognize the modulation style adopted in multiple-input-multiple-output orthogonal space-time block code (MIMO-OSTBC) systems, a cooperative modulation recognition algorithm based on the one-dimensional convolutional neural network (1D-CNN) was ...
Zeliang AN, Tianqi ZHANG, Baoze MA, Pan DENG, Yuqing XU   +4 more
doaj  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Blind Recognition Algorithm of Multi-Carrier Composite Modulation Signal Based on Multi-Dimensional Time-Frequency Superimposed Spectrum

Sensors
The existing multi-carrier composite modulation recognition methods have failed to effectively integrate inner and outer modulation characteristics, thereby limiting the potential for improving recognition performance under low signal-to-noise ratio (SNR)
Shoubin Wang, Huan Li, Xiaolong Zhang, Hao Jiang, Lei Shen   +4 more
doaj   +1 more source

A Novel Digital Modulation Recognition Algorithm Based on Deep Convolutional Neural Network

Applied Sciences, 2020
The modulation recognition of digital signals under non-cooperative conditions is one of the important research contents here. With the rapid development of artificial intelligence technology, deep learning theory is also increasingly being applied to ...
Kaiyuan Jiang, Jiawei Zhang, Haibin Wu, Aili Wang, Yuji Iwahori   +4 more
doaj   +1 more source

A Compact and Discriminative Feature Based on Auditory Summary Statistics for Acoustic Scene Classification

, 2019
One of the biggest challenges of acoustic scene classification (ASC) is to find proper features to better represent and characterize environmental sounds.
Deng, Shiwen, Han, Jiqing, Song, Hongwei
core   +1 more source

Recognition memory is modulated by visual similarity

NeuroImage, 2006
We used event-related fMRI to test whether recognition memory depends on visual similarity between familiar prototypes and novel exemplars. Subjects memorized portraits, landscapes, and abstract compositions by six painters with a unique style, and later performed a memory recognition task.
Yago, E, Ishai, A
openaire   +4 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source