Results 41 to 50 of about 71,014 (263)

Performance analysis and optimization of polarized on‐body relay channels

IET Microwaves, Antennas & Propagation, 2021
On‐body propagation channels show significant polarization selectivity that has dominant impacts on the on‐body link quality in wireless body area networks.
Lingfeng Liu, Jiabin Jin, Peng Zhang, Qin Xia, Nan Jiang, Zhiwei Liu, Xiaoyan Zhang   +6 more
doaj   +1 more source

Silicon-Based Polarization and Wavelength Synchronous Demultiplexing Arrayed Waveguide Grating

IEEE Photonics Journal, 2023
In this work, we propose an 8-channel arrayed waveguide grating (AWG) designed for synchronized de-multiplexing of both polarization and wavelength.
Yawen Bai, Chenguang Li, Qiang Zhang, Pengfei Wang   +3 more
doaj   +1 more source

Multifunctional Meta-Devices for Full-Polarization Rotation and Focusing in the Near-Infrared

Micromachines
The creation of multi-channel focused beams with arbitrary polarization states and their corresponding optical torques finds effective applications in the field of optical manipulation at the micro-nanoscale.
Hengyi Wan, Kai Ou, Hui Yang, Zeyong Wei
doaj   +1 more source

A Group-Wise Feature Enhancement-and-Fusion Network with Dual-Polarization Feature Enrichment for SAR Ship Detection

Remote Sensing, 2022
Ship detection in synthetic aperture radar (SAR) images is a significant and challenging task. However, most existing deep learning-based SAR ship detection approaches are confined to single-polarization SAR images and fail to leverage dual-polarization ...
Xiaowo Xu, Xiaoling Zhang, Zikang Shao, Jun Shi, Shunjun Wei, Tianwen Zhang, Tianjiao Zeng   +6 more
doaj   +1 more source

Physical Layer Secure Transmission Based on Fast Dual Polarization Hopping in Fixed Satellite Communication

IEEE Access, 2017
A fast dual polarization hopping (FDPH) system is designed to enhance the physical layer secure transmission in fixed down-link satellite communications. In order to prevent the eavesdropper from detecting transmitted signals, a pair of dual polarization
Xiaokai Zhang, Bangning Zhang, Daoxing Guo   +2 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Infrared Imaging System with a Local Polarization Channel for Target Detection

Applied Sciences
Infrared imaging can detect the targets from their backgrounds during the day and night. As a supplementary tool, polarization imaging can visually characterize the polarized information of targets in complicated environments.
Xin Liu, Zikang Jiang, Chunhui Niu, Xiaoying Li, Yong Lv, Jun Chang   +5 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

The Structural Types of the Polarization Detection Unit in Imaging Polarimeter Based on the Stokes Parameter Method

Sensors
Bio-inspired imaging polarimeters have significant applications in the field of detecting the polarization state of skylights. The polarization detection principle of polarization detection units in polarimeters is mostly based on the Stokes parameter ...
Yuanhao Li, Xiaohan Guo, Kai Zhang, Xiaoyang Li, Fang Kong, Ziying Jia   +5 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source