Results 71 to 80 of about 5,339 (296)
Advanced Science, EarlyView.Jin et al. developed IEICO‐F nanoparticles with enhanced photothermal conversion efficiency via optimized push‐pull effect. Under 808 nm laser, these nanoparticles effectively generated heat to kill osteosarcoma cells and exhibited significant tumor suppression in vivo. Therefore, this novel A‐D‐A type molecule‐based photothermal therapy strategy holds
Zhijian Jin +9 more
wiley +1 more source
Tunable High‐Performance Metamaterial Filters Based on Novel SRR Architectures
Advanced Science, EarlyView.Based on two novel SRR configurations and two independent SRR integration approaches, four tunable bandpass metamaterial filters were fabricated with an ultra‐thin ceramic substrate. Among them, SM‐2 achieves over 97% electromagnetic wave transmittance, with a minimal 1.15% deviation in its resonant frequency prediction, making them promising ...
Lingxi Qu +4 more
wiley +1 more source
Advanced Science, EarlyView.Hollow Co3O4/TiO2 heterojunctions are engineered for high‐throughput laser desorption/ionization mass spectrometry. The built‐in electric field drives efficient charge separation and photothermal conversion, while the hierarchical mesoporous network enables robust salt and protein tolerance.
Junyu Chen +8 more
wiley +1 more source
Investigation of two problems of airborne radar antennas [PDF]
One of the airborne radar antenna problems is the integration of microwave circuits with waveguide components. As part of this research, an optimum transition from a waveguide to a microstrip using the short transformer technique is proposed.
Niyomjan, Greepol
core +1 more source
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 +7 more
wiley +1 more source
, 2014 This thesis investigates the performance and optimization of shield of ground penetrating radar antennas. The principle analytical tool utilized in the study is FEKO.
Martínez Guzmán, Jéssica
core
Range Sidelobe Suppression Using Complementary Sets in Distributed Multistatic Radar Networks
Sensors, 2017 We propose an alternative waveform scheme built on mutually-orthogonal complementary sets for a distributed multistatic radar. Our analysis and simulation show a reduced frequency band requirement for signal separation between antennas with centralized ...
Jiahua Zhu +4 more
doaj +1 more source
Advanced Science, EarlyView.Different from the current research trends that mainly focus on optimizing a single color system, a universal organic–inorganic hybrid strategy is proposed, aiming to synergistically enhance the luminescent properties of red, green, and blue multi‐color inorganic long‐persistent phosphorescent materials by trap depth modulation and antenna effect of ...
Ting Tan +7 more
wiley +1 more source
Coexistence of 5G Communication Systems With Radar Altimeters
IEEE AccessWith the growing demand for 5G, many countries have allocated additional spectrum above 3.7 GHz, potentially causing serious interference to radar altimeters operating at the 4.2–4.4 GHz band. Therefore, in this paper, a general mathematical model
Jiaqi Li +3 more
doaj +1 more source
Design of a Highly Durable X-Band Array Antenna for Military Radar Systems [PDF]
Journal of Electromagnetic Engineering and ScienceIn this paper, we propose a design technique for a highly durable X-band array antenna operating in the harsh maritime environment of military ships.
En-yeal Yim, Doyoung Jang, Hosung Choo
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