Results 61 to 70 of about 415,096 (290)

Investigation on the Utilization of Millimeter-Wave Radars for Ocean Wave Monitoring

Remote Sensing, 2023
The feasibility of using millimeter-wave radars for wave observations was investigated in this study. The radars used in this study operate at a center frequency of 77.572 GHz.
Xindi Liu, Yunhua Wang, Fushun Liu, Yuting Zhang   +3 more
doaj   +1 more source

Frontier Advances of Emerging High‐Entropy Anodes in Alkali Metal‐Ion Batteries

Advanced Functional Materials, EarlyView.
Recent advances in microscopic morphology control of high‐entropy anode materials for alkali metal‐ion batteries. Abstract With the growing demand for sustainable energy, portable energy storage systems have become increasingly critical. Among them, the development of rechargeable batteries is primarily driven by breakthroughs in electrode materials ...
Liang Du, Kaidi Zhang, Liang Wang, Di Zhao, Mengqing Hu, Mingli Li, Ming Zhou, Zhenzhen Wu, Mengyang Dong, Bo Fu, Porun Liu, Yun Wang, Hongxia Wang, Yuantong Gu, Lei Zhang   +14 more
wiley   +1 more source

Range-Doppler domain spatial alignment for networked radars

EURASIP Journal on Advances in Signal Processing, 2022
An important prerequisite for the radar network detection is that the measurements from local radars are transformed to a common reference frame without systematic or registration errors. For the signal level alignment, only partial signals are available
Xiaoyu Cong, Yubing Han, Weixing Sheng, Shanhong Guo, Hui Sun   +4 more
doaj   +1 more source

An Optimization Method for Collaborative Radar Antijamming Based on Multi-Agent Reinforcement Learning

Remote Sensing, 2023
Attacking a naval vessel with multiple missiles is an important way to improve the hit rate of missiles. Missile-borne radars need to complete detection and antijamming tasks to guide missiles, but communication between these radars is often difficult ...
Cheng Feng, Xiongjun Fu, Ziyi Wang, Jian Dong, Zhichun Zhao, Teng Pan   +5 more
doaj   +1 more source

Isolation Defines Identity: Functional Consequences of Extracellular Vesicle Purification Strategies

Advanced Healthcare Materials, EarlyView.
Four extracellular vesicle purification strategies are compared using ovarian‐cancer ascites and ES‐2 cell supernatants. A novel workflow links purification to function by combining particle‐normalized proteomics with matched cell‐free and cell‐based assays.
Christian Preußer, Dolores J. Salander, Witold Szymanski, Johannes Graumann, Yukai Wang, Kai Zhao, Jörg W. Bartsch, María Gómez‐Serrano, Daniel Bachurski, Silke Reinartz, Elke von Pogge von Strandmann   +10 more
wiley   +1 more source

Target tracking with a dynamic and adaptive selection of radars based on entropy

The Journal of Engineering, 2019
In the modern rapidly changing battlefield, the resources of multiple radars are usually limited for multiple objects multiple missions. Moreover, the amount of target information acquired by different radars at different time index is different.
Chunxia Li, De Zhang, Jianjun Ge, Wujun Wang   +3 more
doaj   +1 more source

Ion‑Mediated Structural Engineering of Hydrogel Interfaces for Tunable Mechanical and Analyte Diffusion Properties in Electrochemical Biosensors

Advanced Materials, EarlyView.
An ion‐mediated structural engineering strategy enables versatile modulation of PVA–Alginate hydrogel microstructure. We systematically examine how different ion combinations affect hydrogel mechanical properties and analyte diffusivity. Applying this novel strategy to hydrogel as the outer membrane in an electrochemical glucose biosensor allows ...
Dongwook Lee, Soo A Kim, Beom‐Jun Shim, Yurim Lee, Tae Young Kim, Sunghyun Park, Yeontaek Lee, Hyeong Gyu Choi, Kayoung Son, Su Bin Han, Keun‐Young Yook, Seo Jung Kim, Won‐Yong Lee, Jungmok Seo, Jayoung Kim   +14 more
wiley   +1 more source

Deployment of Remote Sensing Technologies for Effective Traffic Monitoring

Remote Sensing, 2023
A rising volume of vessel traffic increases navigation density, which leads to an increasing risk of vessel collisions in navigation channels. Navigation safety issues have been widely studied with the aim of reducing such collisions.
Tingting Chen, Jingwen Qi, Min Xu, Liye Zhang, Yu Guo, Shuaian Wang   +5 more
doaj   +1 more source

Cognitive Radars: On the Road to Reality: Progress Thus Far and Possibilities for the Future

IEEE Signal Processing Magazine, 2018
This article describes some key ideas and applications of cognitive radars, highlighting the limits and the path forward. Cognitive radars are systems based on the perception-action cycle of cognition that senses the environment, learns relevant ...
M. Greco, F. Gini, P. Stinco, K. Bell
semanticscholar   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source