Results 31 to 40 of about 2,352 (176)

On the Sources and Sizes of Uncertainty in Predicting the Arrival Time of Interplanetary Coronal Mass Ejections Using Global MHD Models

Space Weather, 2021
Accurate predictions of the properties of interplanetary coronal mass ejection (ICME)‐driven disturbances are a key objective for space weather forecasts.
Pete Riley, Michal Ben‐Nun
doaj   +1 more source

mmWave V2V Localization in MU-MIMO Hybrid Beamforming

IEEE Open Journal of Vehicular Technology, 2022
Recent trends for vehicular localization in millimetre-wave (mmWave) channels include employing a combination of parameters such as angle of arrival (AOA), angle of departure (AOD), and time of arrival (TOA) of the transmitted/received signals ...
Jaswinder Lota, Shihao Ju, Ojas Kanhere, Theodore S. Rappaport, Andreas Demosthenous   +4 more
doaj   +1 more source

Monitoring and assessment for obstructive sleep apnea

FlexMat, EarlyView.
This review systematically classifies Obstructive Sleep Apnea (OSA) monitoring indicators into three categories: physical, biochemical, and electrophysiological indicators, and lists several methods for each category. Abstract Obstructive sleep apnea (OSA) is a common chronic sleep‐disordered breathing disease characterized by recurrent upper airway ...
Yaowen Xu, Feifei Lin, Shujiao Chen, Zhen You, Shujing Zhu, Weiwei Zhao, Qiang Zhao   +6 more
wiley   +1 more source

Forecast‐Error Diagnostics in Neural Weather Models

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Deep learning weather prediction models enable efficient forecast‐error diagnostics through auto‐differentiation and low computational cost. We apply grid‐point relaxation and gradient‐based error sensitivity to identify key forecast‐error sources. Results show that medium‐range forecasts in the midlatitudes benefit most from relaxing the stratosphere ...
Uroš Perkan, Gregor Skok, Žiga Zaplotnik   +2 more
wiley   +1 more source

When two diseases collide: Endometriosis as a risk factor for severe pelvic inflammatory disease

Acta Obstetricia et Gynecologica Scandinavica, EarlyView.
Endometriosis is associated with a more severe clinical course of pelvic inflammatory disease in hospitalized patients, including higher rates of antibiotic treatment failure, longer hospital stay, and increased need for surgical intervention. Abstract Introduction Our objective was to compare the severity of pelvic inflammatory disease (PID) in ...
Marta Camacho, Mariona Rius, Maria Angeles Martínez‐Zamora, Meritxell Gracia, Lara Quintas‐Marquès, Cristian De Guirior, Francisco Carmona, Cristina Ros   +7 more
wiley   +1 more source

Counter‐factual simulation highlights requirements for additional management to avert extinction of a relict Tītī/Sooty Shearwater population

Ibis, EarlyView.
Seabirds play key ecological roles but face increasing threats worldwide. Among them, Tītī (Sooty Shearwater) Ardenna grisea are among the most abundant and culturally significant species in the Southern Hemisphere but are also threatened. Kapiti Island, Aotearoa (New Zealand), holds a Tītī colony which, despite eradication of non‐native mammalian ...
Etienne Ossona De Mendez, Brendon J. Dunphy, Kristal E. Cain, Johannes Chambon, Reg Cotter, Elisabeth Daigle, Graeme A. Taylor, Johannes H. Fischer   +7 more
wiley   +1 more source

Numerical Investigation of the Time Discretization Impact on the Accuracy of a Point Target Localization by UWB Radar

EPJ Web of Conferences, 2018
UWB radar technologies enable localization of moving persons (targets) situated behind nonmetallic obstacles. Under exact knowledge of the propagation times, from the transmitting to the receiving antennas, of the radar emitted electromagnetic wave (time
Buša Ján, Kocur Dušan, Švecová Mária   +2 more
doaj   +1 more source

Distribution and ecology of the four Macrourus species by‐caught in the longline fishery at South Georgia, Southern Ocean

Journal of Fish Biology, EarlyView.
Abstract Although Macrourus species are the main by‐catch across Southern Ocean longline fisheries, including around South Georgia, the lack of species‐specific data has hindered effective management and ecological understanding. Aggregation of macrourids at genus level masks critical interspecific differences in life‐history strategies and ...
José Abreu, Philip R. Hollyman, Jennifer J. Freer, M. L. Romero Martínez, José P. Queirós, Timothy Jones, Richard A. Phillips, José C. Xavier, Martin A. Collins   +8 more
wiley   +1 more source

Comparison of different X‐ray‐based scanning electron microscopy methods to detect sub‐nanometre ultra‐thin InAs layers deposited on top of GaAs

Journal of Microscopy, EarlyView.
Abstract We compare three different methods of X‐ray analysis in a scanning electron microscope (SEM): energy‐dispersive X‐ray spectroscopy (EDX), wavelength‐dispersive X‐ray spectroscopy (WDX) and micro X‐ray fluorescence (μXRF). These methods are all applied to the same gallium arsenide (GaAs) wafer with a 0.8 nm layer of indium arsenide (InAs) on ...
Thomas Walther, Stuart Creasey‐Gray, Stephan Boehm, Heath Young, Yang Yang   +4 more
wiley   +1 more source

A Review of Linear Multilateration Techniques and Applications

IEEE Access
In multilateration, distances between an unknown location and several known points are used to determine the location of the unknown point. Papers on algorithms for multilateration, such as time of arrival (TOA), time difference of arrival (TDOA), and ...
Eric Widdison, David G. Long
doaj   +1 more source