Results 21 to 30 of about 22,325 (306)

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
doaj   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source

Highly Directive Hybrid Yagi-Uda Nanoantenna for Radition Emission Enhancement

IEEE Photonics Journal, 2016
In this paper, a novel design of Yagi–Uda nanoantenna is introduced and numerically analyzed using finite integration technique via computer simulation technology software.
AbdelRahman M. Ghanim, Mohamed Hussein, Mohamed Farhat. O. Hameed, Ashraf Yahia, Salah S. A. Obayya   +4 more
doaj   +1 more source

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
doaj   +1 more source

A DIRECT ADVANCE ON ADVANCE DIRECTIVES [PDF]

Bioethics, 2010
ABSTRACTAdvance directives (ADs), which are also sometimes referred to as ‘living wills’, are statements made by a person that indicate what treatment she should not be given in the event that she is not competent to consent or refuse at the future moment in question.
openaire   +2 more sources

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
doaj   +1 more source

The Influence of the Emission Source on Outcoupling and Directivity of Patterned Perovskite Light-Emitting Diodes

IEEE Photonics Journal, 2021
The perovskite light-emitting diodes (PeLEDs) have attracted considerable research interests in recent years due to their decent and tunable optoelectronic characteristics.
Qing Ci, Xingang Ren, Yeqiang Yan, Hao Ren, Kaikun Niu, Guoxing Sun, Zhixiang Huang, Xianliang Wu   +7 more
doaj   +1 more source

Directed Binary Hierarchies and Directed Ultrametrics [PDF]

Journal of Classification, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lerman, Israël-César, C., Kuntz, Pascale   +1 more
openaire   +8 more sources

Planar Microstrip Patch Antenna Arrays with Semi-elliptical Slotted Patch and ground Structure for 5G Broadband Communication Systems

Cogent Engineering, 2022
In fifth-generation (5G) communication systems, the mm-wave (millimeter-wave) frequency band is a key aspect in overcoming the exponential increase in data traffic of the existing cellular networks, which requires compatible and low-profile antenna ...
Ayane L. Goshu, Mulugeta T. Gemeda, Kinde A. Fante   +2 more
doaj   +1 more source