Results 1 to 10 of about 1,809 (119)

Design and Performance Analysis of a Triple-band Rectangular Slot Microstrip Patch Antenna for Wi-Fi, Wi-MAX and Satellite Applications [PDF]

International Journal of Electronics and Telecommunications, 2022
A triple-band microstrip patch antenna is presented in this article with detail investigation of its working mechanism and performance characteristics. The antenna consists of a rectangular slot on the patch to achieve multiband operation. Three distinct
Md. Biplob Hossain, Md. Faruque Hossain
doaj   +1 more source

Rupture Directivity in 3D Inferred From Acoustic Emissions Events in a Mine-Scale Hydraulic Fracturing Experiment

Frontiers in Earth Science, 2021
Rupture directivity, implying a predominant earthquake rupture propagation direction, is typically inferred upon the identification of 2D azimuthal patterns of seismic observations for weak to large earthquakes using surface-monitoring networks. However,
José Ángel López-Comino, José Ángel López-Comino, José Ángel López-Comino, Simone Cesca, Peter Niemz, Peter Niemz, Torsten Dahm, Torsten Dahm, Arno Zang, Arno Zang   +9 more
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Design and Implementation of a Composite Hydrophone of Sound Pressure and Sound Pressure Gradient

Micromachines, 2021
The bionic cilium MEMS vector hydrophone has the characteristics of low power consumption, small volume, and good low-frequency response. Nevertheless, there exists the problem of left–right ambiguity in the azimuth estimation of a single hydrophone.
Guojun Zhang, Lansheng Zhang, Songxiang Ji, Xi Yang, Renxin Wang, Wendong Zhang, Shie Yang   +6 more
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Design and Simulation of 2×2 Micro Strip Circular Patch Antenna Array at 28 GHz for 5G Mobile Station Application [PDF]

International Journal of Electronics and Telecommunications, 2022
This paper proposes the design and simulation of 2×2 circular patch antenna array working at 28 GHz by using four inset feed micro strip circular patch antennas to achieve beam forming with directivity around 13dB which is required to overcome part of ...
Salim Abdullah Hasan, Abdulsattar Mohamed Ahmed, Mohanad Nawfal Abdulqader, Nawal Mohammed Dawood   +3 more
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On the Source Parameters and Genesis of the 2017, Mw 4 Montesano Earthquake in the Outer Border of the Val d’Agri Oilfield (Italy)

Frontiers in Earth Science, 2021
On October 27, 2017, an Mw 4 earthquake occurred close to the municipality of Montesano sulla Marcellana, less than 10 km external to the concession of the largest European onshore hydrocarbon reservoir—the Val d’Agri oilfield (Southern Italy).
José Ángel López-Comino, José Ángel López-Comino, José Ángel López-Comino, Thomas Braun, Torsten Dahm, Torsten Dahm, Simone Cesca, Stefania Danesi   +7 more
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A Global Optimization Method for Wideband and Small Supergain Arrays Design Using Artificial Neural Network

IEEE Open Journal of Antennas and Propagation, 2023
This paper introduces an efficient approach for compact, wideband and supergain arrays design using artificial neural network (ANN) based optimization.
Abdellah Touhami, Sylvain Collardey, Ala Sharaiha   +2 more
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Design of Longitudinal–Torsional Transducer and Directivity Analysis during Ultrasonic Vibration-Assisted Milling of Honeycomb Aramid Material

Micromachines, 2022
This paper presents a longitudinal–torsional transducer for use during the ultrasonic vibration-assisted milling (UVAM) of honeycomb aramid material.
Mingxing Zhang, Zuotian Ma, Xiaodong Wang, Ting Meng, Xiangqun Li   +4 more
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A Seismological Study of the Michoacán-Colima, Mexico, Earthquake of 19 September 2022 (Mw7.6)

Geofísica Internacional, 2023
Michoacán-Colima earthquake of 19 September 2022 (Ms 7.6, Mw 7.6) ruptured the NW end of the Cocos-North American plate interface, causing severe damage to many towns and cities in the states of Michoacán and Colima. The damage was further exacerbated by
Shri Krishna Singh, Arturo Iglesias Mendoza, D. Arroyo, C. Mendoza, R. D. Corona-Fernández, V. H. Espíndola, D. González-Ávila, O. Castro-Artola, M. A. Santoyo, S. I. Franco   +9 more
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Study of digital diagram formation for optimum interference and noise reduction in antenna arrays of different shapes with directional radiators

Физика волновых процессов и радиотехнические системы, 2022
In the paper the digital beamforming is examined in azimuth and elevation, which allows more accurate formation of nulls and maximum of the radiation pattern.
Yury B. Nechaev, Ilya V. Peshkov
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Development of Split Ring Resonator Shaped Six Element 2 × 3 Multiple Input Multiple Output Antenna for the C/X/Ku/K Band Applications

Micromachines, 2023
In this manuscript, we have numerically investigated and experimentally verified the six-element split ring resonator and circular patch-shaped multiple input, multiple output antenna operating in the 1–25 GHz band. MIMO antennas are analyzed in terms of
Meshari Alsharari, Vishal Sorathiya, Ammar Armghan, Kavan Dave, Khaled Aliqab   +4 more
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