Results 31 to 40 of about 601,761 (190)

Bandwidth Enhancement Of Pyramidal Horn Antenna Using Dielectric Resonator Feeder [PDF]

, 2013
Nowadays, satellite communications play an important role in telecommunications. As a result, high gain and broadband antennas are part of the solution to establish a concept of wide frequency usage.
Othman, Ali
core   +1 more source

Biological Effects of Non-Ionizing Electromagnetic Fields at 27 GHz on Sperm Quality of Mytilus galloprovincialis

Journal of Marine Science and Engineering, 2022
Recently, an increasing use of wireless internet technologies has been demonstrated. The devices which use these technologies emit in new spectral regions an electromagnetic radiation (EMF) which could interact with the male reproductive system.
Roberta Pecoraro, Santi Concetto Pavone, Elena Maria Scalisi, Carmen Sica, Sara Ignoto, Martina Contino, Antonio Salvaggio, Dimitra Marmara, Gino Sorbello, Loreto Di Donato, Maria Violetta Brundo   +10 more
doaj   +1 more source

Measurement-Based Characterization of 15 GHz Propagation Channels in a Laboratory Environment

IEEE Access, 2017
In this paper, measurements in a laboratory characterizing the 15-GHz band propagation channels are introduced. Both an omnidirectional antenna (ODA) and a 10° half-power-beamwidth (HPBW) pyramidal horn antenna are deployed at the transmitter (Tx)
Xuefeng Yin, Yilin Ji, Hua Yan
doaj   +1 more source

Defect Detection in CFRP Concrete Reinforcement Using the Microwave Infrared Thermography (MIRT) Method—A Numerical Modeling and Experimental Approach

Applied Sciences, 2023
This research paper presents the application of the microwave infrared thermography (MIRT) technique for the purpose of detecting and characterizing defects in the carbon-fiber-reinforced polymer (CFRP) composite reinforcement of concrete specimens ...
Sam Ang Keo, Barbara Szymanik, Claire Le Roy, Franck Brachelet, Didier Defer   +4 more
doaj   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Recent Advances of Perovskite Oxides for Air Pollution Control Chemistry: The Closed Loop From Design to Application

EcoEnergy, EarlyView.
This review summarizes a descriptor‐guided framework for linking theoretical calculations, in situ/operando characterization, synthesis regulation, and application screening in functional materials. Emphasis is placed on dynamic structure–property relationships that enable low‐cost material design with enhanced activity, stability, and environmental ...
Yanyu Jin, Zezheng Tang, Hengfan Wu, Xing Yuan, Zongxiang Yang, Weijia An, Wenquan Cui, Xianguang Meng, Ying Xu, Junhua Li   +9 more
wiley   +1 more source

Multimarker Approach to Evaluate the Exposure to Electromagnetic Fields at 27 GHz on Danio rerio Larvae

Journal of Marine Science and Engineering, 2023
5G technology aims to satisfy several service requirements, leading to high data-rate connections and lower latency times than current ones. 5G systems use different frequency bands of the radio wave spectrum, taking advantage of higher frequencies than ...
Roberta Pecoraro, Santi Concetto Pavone, Elena Maria Scalisi, Sara Ignoto, Carmen Sica, Stefania Indelicato, Fabiano Capparucci, Carmelo Iaria, Antonio Salvaggio, Gino Sorbello, Loreto Di Donato, Maria Violetta Brundo   +11 more
doaj   +1 more source

Advances in the Integration of Genomic and Phenomic Tools in Cowpea Breeding for Improving Stress Resilience and Grain Yield and Quality

Legume Science, Volume 8, Issue 4, December 2026.
ABSTRACT Cowpea (Vigna unguiculata L. Walp) is a multi‐use crop highly valued as a food crop, high‐protein fodder, and sustainable cover crop. Yet, it remains underused, and yields in most growing regions are below the crop's potential due to multiple biotic and abiotic stresses.
Habib Akinmade, Luis Getino, María Muñoz‐Amatriaín, Esteban Rios   +3 more
wiley   +1 more source

Biological Flora of New Zealand 17: Kunzea ericoides (Myrtaceae), Kānuka

New Zealand Journal of Botany, Volume 64, Issue 4, December 2026.
This review summarises the taxonomic status, morphology, physiology, ecology, plant communities, mycological, invertebrate and vertebrate interactions and human use of the New Zealand endemic tree Kunzea ericoides (A. Rich.) Joy Thomps. (kānuka) (Myrtaceae).
P. J. Bellingham, M. S. McGlone, I. A. Dickie, N. Harcourt, P. B. Heenan, J. K. McCarthy, C. H. Watts, M. C. Smale, S. J. Richardson   +8 more
wiley   +1 more source

Planar Pyramidal Horn Antenna Without Any E-Plane Flaring for 5G Applications

IEEE Access
This paper presents, for the first time, a planar implementation of a pyramidal horn antenna for 5G millimeter-wave (mmWave) applications. A substrate integrated waveguide (SIW) based planar H-plane horn antenna is designed and judiciously modified to ...
Nilanjan Dutta, Shrabani Mukherjee, Suramate Chalermwisutkul, Prayoot Akkaraekthalin, Kaushik Mandal   +4 more
doaj   +1 more source