Results 81 to 90 of about 73,711 (304)

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Modeling and performance study of direct and indirect radio propagation environment in auditorium

Dianzi Jishu Yingyong, 2018
According to the wireless channel of typical hall environment in the direct and non direct situation, this paper puts forward an improvement of geometric scattering model reference model based on the assumption of scattering propagation environment.
Wu Peng, Zhou Jie, Chen Jianggaolu, Kikuchi Hisakazu   +3 more
doaj   +1 more source

Elementary constraints on autocorrelation function scalings [PDF]

Physical Review E, 2002
Elementary algebraic constraints on the form of an autocorrelation function C(tw+t,tw)= rule out some two-time scalings found in the literature as possible long-time asymptotic forms. The same argument leads to the realization that two usual definitions of {\em many-time scale} relaxation for aging systems are not equivalent.
openaire   +3 more sources

The limiting power of autocorrelation tests in regression models with linear restrictions

, 2004
It is well known that the Durbin-Watson and several other tests for first-order autocorrelation have limiting power of either zero or one in a linear regression model without an intercept, and tend to a constant lying strictly between these values when ...
Wan, Alan, Zou, Guohua, Banerjee, Anurag
core  

Autocorrelation Function (ACF) of monthly ZCL incidence.

, 2013
Autocorrelation Function (ACF) of monthly ZCL incidence.
Nissaf Ben Alaya (264400), Jihene Bettaieb (104559), Sadok Chlif (324165), Zaher E. Ahmadi (324169), Afif Ben Salah (202439), Amine Toumi (324164), Aicha Boukthir (324167)   +6 more
core   +1 more source

SIRT6‐Mediated Deacetylation of ATF3 Promotes Silica‐Induced Lung Fibrosis by Enhancing its Nuclear Import via Binding to Importin α

Advanced Science, EarlyView.
SIRT6‐mediated ATF3 acetylation drives MGARP transcription and mitochondrial dysfunction in macrophages, promoting macrophage senescence and pulmonary fibrosis. Mechanistically, HSP70/Importin α competitively binds to ATF3, modulating its nuclear translocation.
Demin Cheng, Wenxia Bu, Fengxu Wang, Yueyuan Jin, Rongzhu Liu, Rui Zhao, Xuehai Wang, Mengna Jiang, Jinping Shen, Xinhang Cheng, Zuming Chen, Li Zhu, Jinlong Li, Zhenzhong Ge, Shichen Miao, Haotian Xu, Xiaoyu Zhou, Dongming Wang, Xinyuan Zhao   +18 more
wiley   +1 more source

Spatial autocorrelation as a function of distance.

, 2018
Spatial autocorrelation as a function of distance.
Eshetu Wencheko (5236574), Bedilu Alamirie Ejigu (5236571), Kiros Berhane (16960)   +2 more
core   +1 more source

Machine Learning Accelerated Non‐Adiabatic Molecular Dynamics Elucidates Local Polarization Effects on Non‐radiative Recombination in Halide Perovskites

Advanced Science, EarlyView.
This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang, Xiaoli Wei, Bo Cai, Yan Yang, Xinghai Zhu, Yi Liu, Junmin Xia, Lihui Liu, Kun Cao, Wei Shen, Pengfei Xia, Shufen Chen, Siyu Chen, Jin Zhao   +13 more
wiley   +1 more source

Machine Learning‐Assisted KCl‐CaCl2‐LiCl Electrolyte Design for Low‐Temperature, High‐Performance Calcium‐Based Liquid Metal Batteries

Advanced Science, EarlyView.
A machine learning‐assisted framework optimizes the KCl‐CaCl2‐LiCl ternary electrolyte. The optimized 13:35:52 mol% composition enables Ca‐based liquid metal batteries to operate stably at 480 °C, with >99.5% coulombic efficiency, ultralow self‐discharge, and excellent cycling stability, advancing low‐temperature large‐scale energy storage.
Xinglin Zhou, Lei Huang, Yan Zhou, Xiaohui Ning   +3 more
wiley   +1 more source

The Autocorrelation Function Denoising Algorithm Based on Convolutional Neural Networks

IEEE Access
To enhance the image reconstruction quality of the Nth-order linear (NL) linear algorithm, this study proposes a convolutional neural network (CNN)-based denoising method, named Dilated Conv-Resnet model, that processes noisy electric field temporal ...
Xiaojuan Zhang, Kai Liu, Dalin Cheng, Jiang Liu, Hangming Chang, Xiaogang Tong   +5 more
doaj   +1 more source