Results 111 to 120 of about 1,999,725 (279)

Fruit Orchard Canopy Recognition and Extraction of Characteristics Based on Millimeter-Wave Radar

Agriculture
Fruit orchard canopy recognition and characteristic extraction are the key problems faced in orchard precision production. To this end, we built a fruit tree canopy detection platform based on millimeter-wave radar, verified the feasibility of millimeter-
Yinlong Jiang, Jieli Duan, Yang Li, Jiaxiang Yu, Zhou Yang, Xing Xu   +5 more
doaj   +1 more source

Linear‐Nonlinear‐Linear Sandwich‐Structured Polymer Composites With Metal‐Organic Framework (MOF)‐Enhanced Insulating Layers and Horizontally Oriented Nanotube‐Filled Polarization Layer for High Energy Storage Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A linear‐nonlinear‐linear (LNL) sandwich dielectric film was rationally designed for high energy storage. Its outer linear layers are MOF (ZIF‐8)‐enhanced PEI composites (EZ), and the middle nonlinear layer is an electrospun‐hot‐pressed P(VDF‐HFP)/TNTs composite (PT) with horizontally oriented TNTs.
Yanpeng Li, Zhichao Yang, Dong Yue, Congcong Zhu, Yunpeng Liu, Lei Zhai, Yu Feng, Xiaoxu Liu   +7 more
wiley   +1 more source

Millimeter-Wave Polarimetric Radars [PDF]

Progress In Electromagnetics Research, 1990
J. B. Mead, R. E. McIntosh
openaire   +1 more source

Dimensional Engineering of Wet‐Spun MOF‐Based Woven Fabrics for Superior Electromagnetic Wave Absorption

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work fabricated MOF‐based woven absorbing fabrics with dimensional engineering via a wet spinning strategy. The absorbing fabrics achieve a reflection loss of −51.47 dB at 2.9 mm, with an effective absorption bandwidth reaching 3.54 GHz. The absorbing fabrics can be freely bent, stretched, and folded, with individual fibers exhibiting a break ...
Zihao Yan, Liyuan Guan, Qing Liu, Junhao Lin, Jianyong Yu, Bin Ding, Zhaoling Li   +6 more
wiley   +1 more source

94 GHz Monolithic Transmitter for Weather Radar Application [PDF]

, 2011
This thesis was written for concluding my studies at the University of Padua. The main topic is the design of a monolithic transmitter in SiGe bipolar technology, for weather radar application at an operating frequency around 94GHz.
Puliero , Claudio
core  

Multifunctional Oleylamine Enables Direct Regeneration of Spent Lithium Iron Phosphate Cathodes through Coupled Lattice and Interface Repair

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A multifunctional oleylamine‐assisted solvothermal strategy is introduced for coupled lattice and interface repair of S‐LFP cathodes. Benefiting from its strongly coordinating amine groups and long hydrophobic alkyl chains, oleylamine simultaneously acts as an intrinsic reductant, defect‐repair mediator, morphology stabilizer, and carbon/nitrogen ...
Yuan Feng, Ziyan Liu, Ruiqi Gao, Shidong Li, Zhenhang Zhong, Hao Zhang, Meichen Zhu, Ao Liu, Xuanpeng Wang, Kang Han, Chaojiang Niu, Jiashen Meng   +11 more
wiley   +1 more source

A Millimeter-Wave Indoor Backscattering Channel Model for Environment Mapping

, 2017
International audienceIn this communication, we introduce a channel model for personal radar applications where a millimeter-wave (mm-wave) massive array is required to scan the environment and to reconstruct a map of it.
Dardari, Davide, Anna Guerra, Raffaele D'Errico, Clemente, Antonio, d'Errico, Raffaele, Guerra, Anna, Guidi, Francesco, Francesco Guidi, Davide Dardari, Antonio Clemente, Dardari Davide, Guidi Francesco, Guerra Anna, Clemente Antonio, D'Errico Raffaele   +14 more
core   +1 more source

Ni Nanoparticle‐Decorated Reduced Graphene Oxide Hybrids With Tunable Dielectric–Magnetic Synergy for Efficient Microwave Absorption

Electron, EarlyView.
Optimized Ni nanoparticle loading on reduced graphene oxide creates abundant Ni/rGO heterointerfaces, enhancing interfacial polarization, conductive loss, magnetic loss, and impedance matching. The rGO/Ni‐5 hybrid achieves efficient microwave absorption at only 15 wt.% filler loading, delivering a minimum reflection loss of −35.5 dB and an effective ...
Zhurong Peng, Xian Jian, Suyun Tian, Chuankai Yang, Kexu Ding, Jinlong Bian, Jinjie Yan, Longyuan Zhao, Quanjun Xiang, Yuanxun Li, Minshu Chen, Yulong Liao   +11 more
wiley   +1 more source

Indoor fall detection based on millimeter-wave radar three-dimensional point cloud

Dianzi Jishu Yingyong
The advent of the global aging era has brought critical issues concerning the elderly health care to light, and indoor falls pose a significant safety risk to seniors who live alone.
Li Wei, Li Dandan, Ding Qining, Ma Yuyi, Geng Yongfu   +4 more
doaj   +1 more source

Advanced millimeter-wave radar modules for helicopter landing aid

, 2022
S.117-124Miniaturized millimeter-wave radar modules working at 94 GHz enable advanced helicopter landing aids.These modules make use of the 100 nm metamorphic HEMT technology developed at Fraunhofer IAF.
Leuther, Arnulf, Hülsmann, A., Ambacher, Oliver, Hägelen, M., Essen, H., Schlechtweg, M., Tessmann, Axel, Brise, G.   +7 more
core