Results 41 to 50 of about 887,490 (255)

A Novel Method for DOA and Time Delay Joint Estimation in Multipath OFDM Environment

International Journal of Antennas and Propagation, 2020
Joint time delay and direction of arrival estimation based on uniform linear arrays in Orthogonal Frequency Division Multiplexing (OFDM) systems has to face the problems posed by coherent multipath environments and high computational complexity.
Xiangzhi Li, Weijia Cui, Haiyun Xu, Bin Ba, Yankui Zhang   +4 more
doaj   +1 more source

Configuring Reconfigurable Intelligent Surface for Parallel MIMO Visible Light Communications with Asymptotic Capacity Maximization

Applied Sciences, 2022
As an emerging technology, reconfigurable intelligent surface (RIS) has attracted increasing attention due to the ability to configure the wireless propagation environment.
Qi Wu, Jian Zhang, Yanyu Zhang, Gang Xin, Jianing Guo   +4 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Fast Joint Estimation of Time of Arrival and Angle of Arrival in Complex Multipath Environment Using OFDM

IEEE Access, 2018
Joint time of arrival (TOA) and angle of arrival (AOA) estimation based on a uniform circle array (UCA) involves problems, including high computational complexity in the multi-dimensional spectral search method and lack of applicability in coherent ...
Haiyun Xu, Yankui Zhang, Bin Ba, Daming Wang, Xiangzhi Li   +4 more
doaj   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Can task-switching training enhance executive control functioning in children with attention deficit/-hyperactivity disorder? [PDF]

, 2012
The key cognitive impairments of children with attention deficit/-hyperactivity disorder (ADHD) include executive control functions such as inhibitory control, task-switching, and working memory (WM).
Jutta Kray, Christine Freitag, Julia eKarbach, Susann eHaenig, Christine eFreitag, Julia Karbach, Karbach, Julia, Haenig, Susann, Kray, Jutta, Freitag, Christine M., Jutta eKray, Susann Haenig   +11 more
core   +1 more source

Theory and Inference for a Markov-Switching GARCH Model [PDF]

We develop a Markov-switching GARCH model (MS-GARCH) wherein the conditional mean and variance switch in time from one GARCH process to another. The switching is governed by a hidden Markov chain. We provide sufficient conditions for geometric ergodicity
Jeroen V.K. Rombouts, Arie Preminger, Luc Bauwens   +2 more
core   +6 more sources

An Underdetermined Source Number Estimation Method for Non-Circular Targets Based on Sparse Array

IEEE Access, 2019
Source number estimation is one of the key technologies of wireless location, and it is also the basis of parameter estimation and location solution.
Yankui Zhang, Daming Wang, Haiyun Xu, Fengtong Mei, Jiangdong You   +4 more
doaj   +1 more source

Performance analysis of user association strategy based on power-domain non-orthogonal multiple access in visible light communication multi-cell networks

EURASIP Journal on Wireless Communications and Networking, 2020
A multi-cell visible light communication (VLC) network with non-orthogonal multiple access (NOMA) introduces an inter-cell interference (ICI), which causes poor experience of overlap-area user association.
Siyu Tao, Hongyi Yu, Qing Li, Yanqun Tang   +3 more
doaj   +1 more source