Results 101 to 110 of about 933,433 (278)

Multi-Frequency Based Direction-of-Arrival Estimation for 2q-Level Nested Radar & Sonar Arrays

Sensors, 2018
Direction finding is a hot research area in radar and sonar systems. In the case of q ≥ 2, the 2qth-order cumulant based direction of arrival (DOA) estimation algorithm for the 2q-level nested array can achieve high resolution performance.
Hao Zhou, Guoping Hu, Junpeng Shi, Ziang Feng   +3 more
doaj   +1 more source

The enhanced beam sweeping algorithm for DOA estimation in the hybrid analog-digital structure with nested array. [PDF]

Sci Rep, 2022
Ye S, Liu G, Zhou Y, Dang B.
europepmc   +1 more source

A Facial Foundation Model for Clinical Biomarker Prediction and Real‐World Mobile Deployment

Advanced Science, EarlyView.
MedicalFaceFound is a facial foundation model developed through three‐stage progressive pre‐training, adapting representations from general vision to facial structure and clinical phenotypes. Using a single facial image, it estimates 62 biomarkers across multiple physiological systems and supports downstream risk prediction for cardiovascular ...
Tingfeng Xu, Huixuan Xu, Li Lin, Fei Wang, Yaodong Ding, Shuangqiao Liao, Xingyu Chen, Jichen Wen, Hongqiang Zhao, Jing Hao, Weixiang Zhao, Gong Zhang, Shiguang Shan, Yong Zeng, Hu Han, Minxian Wang   +15 more
wiley   +1 more source

High‐Density Type I Collagen Promotes IFN‐γ+ CD8+ T Cell Exhaustion via SAT1‐ASS1‐Mediated Glutamine Accumulation and Ferroptosis in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
High‐density type I collagen promotes glutamine (Gln) accumulation–related ferroptosis of TNBC cells via the spermidine/spermine N1‐acetyltransferase 1 (SAT1)‐ argininosuccinate synthase (ASS1) signaling pathway, thus depriving immune cells of Gln supply and inducing IFN‐γ+ CD8+ T cell exhaustion in the TME.
Jinyan Wang, Shuangyue Pan, Lu Bai, Bin Li, Tiantian Liu, Jianing Cao, Mengdi Yang, Heda Zhang, Duancheng Guo, Wenxiang Zhi, Zhonghua Tao, Xichun Hu   +11 more
wiley   +1 more source

ERα–PADI4–CXCL8 Axis Drives MDSC‐Mediated Immune Evasion in Anaplastic Thyroid Carcinoma

Advanced Science, EarlyView.
MAPK‐driven ligand‐independent ERα activation drives PADI4 transcription and translation. This enzyme then modifies CXCL8 chemokines through citrullination, generating a potent chemoattractant gradient specifically for myeloid‐derived suppressor cells.
Dongdong Zhang, Ying Cai, Junbin Zhang, Jianyong Zhang, Ran Jing, Ming Cai   +5 more
wiley   +1 more source

Direction of arrival estimation using combined coprime and nested array

Electronics Letters, 2019
A combined coprime and nested array geometry is designed and a corresponding direction of arrival (DOA) method is proposed. The proposed array has three subarrays, where two are prototype coprime subarrays, and both of them are nested to the third one ...
Jianfeng Li, Yunxiang Li, Xiaofei Zhang
doaj   +1 more source

Polarization-Angle-Frequency Estimation With Linear Nested Vector Sensors

IEEE Access, 2018
This paper considers the problem of multiple dimensional parameter estimation of radar signals using a linear nested vector sensor array. We propose a computationally efficient polarizationangle-frequency estimation algorithm based on spatial-temporal ...
Xiaodong Han, Ting Shu, Jin He, Wenxian Yu   +3 more
doaj   +1 more source

Bio‐Inspired Gradient Heterogeneous Architectures for Ultrasensitive and Robust Strain Sensors via Programmable Crack Engineering

Advanced Science, EarlyView.
Inspired by the insect campaniform sensillum, a heterogeneous bilayer strain sensor is developed based on a unique impedance mismatch and three‐dimensional structural dynamic percolation strategy. The sensor enables real‐time multi‐joint teleoperation of three joints and the gripper using a six‐degree‐of‐freedom robotic‐arm platform.
Qi Wu, Tiantong Wang, Yinhao Wang, Yanggang Feng, Yan Huang   +4 more
wiley   +1 more source

A Nested Array Geometry with Enhanced Degrees of Freedom and Hole-Free Difference Coarray [PDF]

This paper presents a new extended nested array geometry with enhanced degrees-of-freedom (DOFs) and a hole-free difference coarray for Direction-of-Arrival (DOA) estimation applications.
Wandale, Steven, 0000-0001-7663-6919, 0000-0002-4118-5000, Ichige, Koichi   +3 more
core  

Omnidirectional Interaction Networks Modulating Phenotypic Plasticity in the Gut Microbiota Towards Ulcerative Colitis

Advanced Science, EarlyView.
This study employs a spouse‐pair cohort design and an idopNetwork model that integrates evolutionary game theory, predator‐prey dynamics, and developmental modularity theory to reconstruct maximally informative microbial interaction networks. This approach reveals how interspecies interactions drive the phenotypic plasticity of the gut microbiota in ...
Huizhen Li, Jiayi Li, Ang Dong, Xiaoyan Guo, Qiuyue Tu, Zelin Feng, Haojia Lin, Yanru Zhang, Yuxuan Hao, Huiying Gong, Yihan Meng, Yu Wang, Shing‐Tung Yau, Xiaocang Cao, Rongling Wu, Xinjuan Liu   +15 more
wiley   +1 more source