Results 181 to 190 of about 59,812 (299)

Compact dual-band antenna array for environmental monitoring systems. [PDF]

Sci Rep
El Swiefy BH, Abd El-Hameed AS, Eldamak AR, ELsadek H, El-Hennawy HM.   +4 more
europepmc   +1 more source

Frozen Differential Scattering in Reconfigurable Complex Media

Laser &Photonics Reviews, EarlyView.
A localized perturbation universally results in a rank‐one update of the scattering matrix of any complex medium. The resulting differential output wavefront is “frozen”: its spatial pattern is fixed (agnostic to the input wavefront). Experiments with a programmable‐metasurface‐parametrized wireless link validate frozen differential scattering and ...
Philipp del Hougne
wiley   +1 more source

An Improved RODNet for Object Detection Based on Radar and Camera Fusion. [PDF]

Sensors (Basel)
Fan M, Wang X, Fu M, Yang Y, Guo Y, Lan X.   +5 more
europepmc   +1 more source

Subsurface Investigations of Cryo‐Hydrogeological Features in a High Arctic Catchment Under Transition

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT In this study, the internal structure and seasonal variations of cryo‐hydrogeological features were investigated in the Fuglebekken catchment, located near the Polish Polar Station Hornsund in Svalbard. Over a few years, rising air temperatures and intensified water circulation have significantly altered the distribution, extent, and state of ...
Wawrzyniak Tomasz, Oryński Szymon, Marciniak Artur, Osuch Marzena   +3 more
wiley   +1 more source

Development of a high-precision nano millimeter-wave radar system for non-contact bridge displacement monitoring. [PDF]

Sci Rep
Xiao M, Han Z, Yu J, Xu G, Zhao W, Wu Y.
europepmc   +1 more source

Land data assimilation of satellite‐based surface soil moisture: Impact on atmospheric simulations over the contiguous United States

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Soil Moisture Active Passive soil moisture retrievals are assimilated into a land surface model and the resulting land reanalysis product is used to initialise the land component of coupled land‐atmosphere experiments. We show that the local impact of land data assimilation on the atmosphere is influenced by two factors: the magnitude by which it ...
Zdenko Heyvaert, Michel Bechtold, Wouter Dorigo, Jonas Mortelmans, Daniel Hagan, Joseph Santanello, Gabriëlle De Lannoy   +6 more
wiley   +1 more source

A Computational Approach to Increasing the Antenna System's Sensitivity in a Doppler Radar Designed to Detect Human Vital Signs in the UHF-SHF Frequency Ranges. [PDF]

Sensors (Basel)
Vatamanu D, Miclaus S.
europepmc   +1 more source

Mesoscale dynamics of cyclone Leslie (2018): A diagnostic analysis of a rare Iberian landfall

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents a successful numerical simulation of cyclone Leslie (2018), using WRF‐ARW v4.5.1. Several mesoscale dynamics were identified indicative of the occurrence of sting jet and cold conveyor belt, which potentiated the record‐breaking winds in central Portugal.
Miguel M. Lima, Luana C. Santos, Albenis Pérez‐Alarcón, Pedro M. M. Soares, Ricardo M. Trigo, Rita M. Cardoso   +5 more
wiley   +1 more source

Design of an omnidirectional conical beam leaky wave antenna using the holographic technique. [PDF]

Sci Rep
Azad S, Azad M, Abdolali A, Nooramin AS, Amini A.   +4 more
europepmc   +1 more source

Meteorological conditions leading to a catastrophic, rain‐induced landslide in Cameroon in October 2019

Quarterly Journal of the Royal Meteorological Society, EarlyView.
October 2019 was characterized by three main multiday wet spells in Bafoussam and Dschang. Our results indicated that wet spells were influenced by a vortex pair near the Gulf of Guinea, a strong Sahara Heat Low located anomalously far east and north, a northward shift of the intertropical discontinuity, an enhancement of the inland penetration of the ...
Derbetini A. Vondou, Marlon Maranan, Andreas H. Fink, Peter Knippertz   +3 more
wiley   +1 more source