Results 21 to 30 of about 378,324 (280)

Observations and modeling of UHF-band scintillation occurrence probability over the low-latitude region of China during the maximum activity of solar cycle 24 [PDF]

Annales Geophysicae, 2015
The climatological characteristics of UHF-band scintillations over the low-latitude region of China were investigated by analyzing the observations recorded at three stations of our regional network of satellite-beacon-based scintillation monitoring in
H. Zhang, H. Zhang, Y. Liu, J. Wu, T. Xu, D. Sheng   +5 more
doaj   +1 more source

Two-Dimensional Barrage Jamming against SAR Using a Frequency Diverse Array Jammer

Sensors, 2023
Due to the modulation of tiny frequency offset on the array elements, a frequency diverse array (FDA) jammer can generate multiple range-dimension point false targets, and many deception jamming methods against SAR using an FDA jammer have been studied ...
Jingke Zhang, Yonghu Zeng, Zongfeng Qi, Liandong Wang, Ya Wang, Xujian Shen   +5 more
doaj   +1 more source

Computation of transient electromagnetic fields due to switching in high voltage substations [PDF]

, 2010
Switching operations of circuit breakers and disconnect switches radiate transient electromagnetic fields within high-voltage substations. The generated fields may interfere and disrupt normal operations of electronic equipment.
Judd, M.D., Musa, B.U., Siew, W.H.
core   +1 more source

Earth observation for monitoring and mapping of cyanobacteria blooms. Case studies on five Italian lakes

Journal of Limnology, 2016
Cyanobacterial blooms occur in many parts of the world as a result of entirely natural causes or human activity. Due to their negative effects on water resources, efforts are made to monitor cyanobacteria dynamics.
Mariano Bresciani, Claudia Giardino, Rosaria Lauceri, Erica Matta, Ilaria Cazzaniga, Monica Pinardi, Andrea Lami, Martina Austoni, Emanuela Viaggiu, Roberta Congestri, Giuseppe Morabito   +10 more
doaj   +1 more source

Scalable Electromagnetic Simulation Environment

Computer Modeling in Engineering & Sciences, 2004
Computational electromagnetic (CEM) simulations of full-range military vehicles play a critical role in enhancing the survivability and target recognition of combat systems. Modeling of full-range military systems subjected to high frequencies may involve generating large-scale meshes, solving equations, visualization, and analysis of results in the ...
Namburu, Raju R., Mark, Eric R., Clarke, Jerry A.   +2 more
openaire   +2 more sources

Superconducting SET with tunable electromagnetic environment

, 2002
We have studied the environmental effect on superconducting single-electron transistors (S-SETs) by biasing S-SETs with arrays of small-capacitance dc SQUIDs, whose effective impedance can be varied in situ.
Fitzgerald, Koji Ishibashi, Kycia, Michio Watanabe, Nakamura, Schön, Sondhi, Watanabe, Watanabe, Watanabe, Yoshinobu Aoyagi   +10 more
core   +3 more sources

Dynamical Coulomb blockade of tunnel junctions driven by alternating voltages

, 2015
The theory of dynamical Coulomb blockade is extended to tunneling elements driven by a time-dependent voltage. It is shown that for standard set-ups where an external voltage is applied to a tunnel junction via an impedance, time-dependent driving ...
Grabert, Hermann
core   +1 more source

Effects of CW Interference on the BDS Receiver and Analysis on the Coupling Path of Electromagnetic Energy

IEEE Access, 2019
The present research is carried out on the issue that the BDS (BeiDou Navigation Satellite System) receiver exerts some vulnerability to CW (continuous wave) interference.
Yuqing Fan, Erwei Cheng, Ming Wei, Qinglong Zhang, Yazhou Chen   +4 more
doaj   +1 more source

A Spoofing Detection and Direction-Finding Approach for Global Navigation Satellite System Signals Using Off-the-Shelf Anti-Jamming Antennas

Remote Sensing
Global Navigation Satellite System (GNSS) spoofing induces the target receiver to obtain the wrong positioning and timing results, which is very harmful.
Ruimin Jin, Junkun Yan, Xiang Cui, Huiyun Yang, Weimin Zhen, Mingyue Gu, Guangwang Ji, Longjiang Chen, Haiying Li   +8 more
doaj   +1 more source

Using remote sensing and numerical modelling to quantify a turbidity discharge event in Lake Garda

Journal of Limnology, 2020
We investigate the effect of the Adige-Garda spillway opening on the 03/03/2020 on Lake Garda using numerical modelling and maps of Suspended Particulate Matter (SPM) concentration.
Nicola Ghirardi, Marina Amadori, Gary Free, Lorenzo Giovannini, Marco Toffolon, Claudia Giardino, Mariano Bresciani   +6 more
doaj   +1 more source