Results 141 to 150 of about 6,360,179 (406)

A geoscience evaluation of multifrequency radar imagery of the Pisgah Crater area, California [PDF]

Comparison of multiband simultaneous radar imaging over geological test ...
Dellwig, L. F.
core   +1 more source

Imaging Radar Polarimetry [PDF]

, 1990
J.J. van Zyl, H. A. Zebker
openalex   +1 more source

VOx‐Based Non‐Volatile Radio‐Frequency Switches for Reconfigurable Filter

Advanced Science, EarlyView.
Vanadium oxide‐based memristor devices achieve high performance for next‐generation non‐volatile memory and RF switches. These devices demonstrate a cutoff frequency of ≈4.5 THz, low insertion loss (<0.46 dB), and high isolation (>20 dB) from 0.1 to 20 GHz with stable operation extended to 67 GHz.
Dabin Seo, Dahyeon Kim, Jiyeon Ryu, Changwoo Pyo, Seungchan Lee, Tae‐Sik Yoon, Myungsoo Kim   +6 more
wiley   +1 more source

Calibration to Mitigate Near-Field Antennas Effects for a MIMO Radar Imaging System. [PDF]

Sensors (Basel), 2021
Hoang H, John M, McEvoy P, Ammann MJ.
europepmc   +1 more source

Comment on “Wind wave directionality effects on the radar imaging of ocean swell” by F. J. Ocampo‐Torres and I. S. Robinson [PDF]

, 1991
William J. Plant
openalex   +1 more source

Heterostructure of Fe3O4 Confined in Hierarchical Porous Carbon for Interface‐Enhanced Medical‐Grade H2O2 Electrosynthesis

Advanced Science, EarlyView.
The heterostructure, featuring the interfacial effect of Fe3O4 and amorphous carbon, enhances electronic conductivity, and activates thermodynamically favorable Fe and C multiple sites for the 2e– ORR by moderately tuning *OOH adsorption strength, enabling efficient medical‐grade H2O2 synthesis.
Yanan Shi, Li‐Li Zhang, Chongyang Wang, Shaohui Sun   +3 more
wiley   +1 more source

Mechanistic Insights into the Structural Evolution of ZIF‐67 via Electrospinning Strategy Toward High Electromagnetic Wave Absorption Performance of ZIF‐67‐Derived Carbon Nanofibers

Advanced Science, EarlyView.
With 5G and AI robotics rising, electromagnetic radiation risks signal security and health. This work investigates the electromagnetic wave absorption of Co/CNF composites via in situ and ex situ electrospinning strategies. The in situ synthesized sample exhibits superior absorption properties due to enhanced structural uniformity, improved Co ...
Xinhui Cao, Xinyi Wu, Xue Wang, Jiamei Luo, Zhe Zhang, Yi Xue, Guoliang Zhang, Liying Zhang, Hui Zhang, Jianyong Yu   +9 more
wiley   +1 more source

High-efficiency transition between rectangular waveguide and domino plasmonic waveguide

AIP Advances, 2015
In this work, we propose an optimized transition structure to realize smooth and high efficiency conversion from the guided wave supported by a conventional rectangular waveguide (CRW) to the domino plasmon polaritons (DPPs) supported by a domino ...
Liangliang Liu, Zhuo Li, Bingzheng Xu, Changqing Gu, Chen Chen, Pingping Ning, Jian Yan, Xingyu Chen   +7 more
doaj   +1 more source

Compressive Sensing-Based Radar Imaging and Subcarrier Allocation for Joint MIMO OFDM Radar and Communication System. [PDF]

Sensors (Basel), 2021
Hwang S, Seo J, Park J, Kim H, Jeong BJ.
europepmc   +1 more source

Applications of active microwave imagery [PDF]

The following topics were discussed in reference to active microwave applications: (1) Use of imaging radar to improve the data collection/analysis process; (2) Data collection tasks for radar that other systems will not perform; (3) Data reduction ...
Childs, L. F., Gilbert, R., Harlan, J. C., Hoffer, R. M., Miller, J. M., Parsons, J., Polcyn, F., Schardt, B. B., Smith, J. L., Weber, F. P.   +9 more
core   +1 more source