Results 1 to 10 of about 14,538,755 (201)

Crest Factor Optimization for Multisine Excitation Signals with Logarithmic Frequency Distribution Based on a Hybrid Stochastic-Deterministic Optimization Algorithm

Batteries, 2022
For diagnosis of batteries and fuel cells based on impedance spectroscopy, excitation signals are required, including low frequencies down to the mHz range.
Ahmed Yahia Kallel, Olfa Kanoun
doaj   +2 more sources

A crest factor reduction scheme based on recursive optimum frequency domain matrix [PDF]

IEEE transactions on consumer electronics, 2014
One of the main imperfections in orthogonal frequency division multiplexing (OFDM) techniques is a peak-to-average power ratio (PAPR) or crest factor (CF). High crest factor signal forces a power amplifier in communication systems to back-off which leads
Mohd Ali, Borhanuddin, Varahram, Pooria
core   +2 more sources

Dynamic and differential regulation of stem cell factor FoxD3 in the neural crest is Encrypted in the genome. [PDF]

PLoS Genetics, 2012
The critical stem cell transcription factor FoxD3 is expressed by the premigratory and migrating neural crest, an embryonic stem cell population that forms diverse derivatives.
Marcos S Simões-Costa, Sonja J McKeown, Joanne Tan-Cabugao, Tatjana Sauka-Spengler, Marianne E Bronner   +4 more
doaj   +5 more sources

Eed controls craniofacial osteoblast differentiation and mesenchymal proliferation from the neural crest [PDF]

eLife
 The histone methyltransferase Polycomb repressive complex 2 (PRC2) is required for specification of the neural crest, and mis-regulation of neural crest development can cause severe congenital malformations. PRC2 is necessary for neural crest induction,
Tim Casey-Clyde, S John Liu, Angelo Pelonero, Juan Antonio Camara Serrano, Camilla Teng, Yoon-Gu Jang, Harish N Vasudevan, Arun Padmanabhan, Jeffrey Ohmann Bush, David R Raleigh   +9 more
doaj   +2 more sources

Advances in Targeting Growth Factor Signalling in Neuroblastoma and Overcoming Drug Resistance [PDF]

Cells
Neuroblastoma is an embryonal tumour that arises from the malignant transformation of neural crest cells and remains one of the deadliest malignancies in children under five.
Karina Ivanenko, Ruslan Shaymardanov, Vladimir Prassolov, Timofey Lebedev   +3 more
doaj   +2 more sources

An Exposimetric Electromagnetic Comparison of Mobile Phone Emissions: 5G versus 4G Signals Analyses by Means of Statistics and Convolutional Neural Networks Classification

Technologies, 2023
To gain a deeper understanding of the hotly contested topic of the non-thermal biological effects of microwaves, new metrics and methodologies need to be adopted.
Simona Miclaus, Delia B. Deaconescu, David Vatamanu, Andreea M. Buda   +3 more
doaj   +1 more source

THE STUDY OF ENSEMBLE PROPERTIES OF COMPLEX SIGNALS OBTAINED BY TIME INTERVAL PERMUTATION

Сучасні інформаційні системи, 2020
The results of statistical analysis of cross-correlation properties of complex signals’ ensembles, were obtained due to time interval permutations are presented in this paper.
Serhii Indyk, Volodymyr Lysechko
doaj   +1 more source

Whole-body vibration exposure characterization in bus drivers of Haikou City: A comparison between two health risk assessment methods

环境与职业医学, 2023
BackgroundLong-term exposure to whole-body vibration (WBV) will affect the health of occupational drivers. However, research on the characteristics of WBV exposure by urban bus drivers and health risk evaluation is still insufficient.
Yun CHEN, Longyi WANG, Zhongxu WANG, Ning JIA, Qingsong CHEN   +4 more
doaj   +1 more source

Augmented Iterative Learning Control for Neural-Network-Based Joint Crest Factor Reduction and Digital Predistortion of Power Amplifiers

IEEE transactions on microwave theory and techniques, 2020
Digital predistorsion (DPD) is a commonly used approach to compensate for the power amplifiers (PA) nonlinearities and memory effects as well as to improve its power efficiency.
Siqi Wang, Morgan Roger, J. Sarrazin, C. Lelandais-Perrault   +3 more
semanticscholar   +1 more source

Vibrations in CDFW

Entropy, 2020
Continuous drive friction welding is a solid-state welding process that has been experimentally proven to be a fast and reliable method. This is a complex process; deformations in the viscosity of a material alter the friction between the surfaces of the
Daniel Soares de Alcantara, Pedro Paulo Balestrassi, José Henrique Freitas Gomes, Carlos Alberto Carvalho Castro   +3 more
doaj   +1 more source