Results 41 to 50 of about 138,574,001 (211)

mmWave V2V Localization in MU-MIMO Hybrid Beamforming

open access: yesIEEE 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   +4 more
doaj   +1 more source

Prevalence of insulin dysregulation in a sport horse population as determined by traditional and stall‐side testing

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background The prevalence of insulin dysregulation (ID) has not been investigated in sport horses. Stall‐side insulin assays offer convenience but need further validation. Objectives To determine the prevalence of and risk factors for ID in a sport horse population using an oral sugar test (OST) and assess agreement between stall‐side and ...
Kimberly L. Hallowell   +7 more
wiley   +1 more source

Monitoring and assessment for obstructive sleep apnea

open access: yesFlexMat, 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   +6 more
wiley   +1 more source

Location Algorithms and Errors in Time-of-Arrival Systems [PDF]

open access: yes, 2001
This report describes least squares solution methods and linearized estimates of solution errors caused by data errors. These methods are applied to event locating systems which use time-of-arrival (TOA) data.
Aaronson, Eugene A.
core   +1 more source

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

open access: yesActa 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   +7 more
wiley   +1 more source

Time of arrival estimation in pulsar-based navigation systems [PDF]

open access: yes, 2015
This paper focuses on the Time of Arrival (TOA) estimation problem related to new application of pulsar signals for airplane-based navigation. The aim of the paper is to propose and evaluate a possible algorithm for TOA estimation that consists of epoch ...
I. Garvanov   +11 more
core   +1 more source

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

open access: yesEPJ 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   +2 more
doaj   +1 more source

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

open access: yesIbis, 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   +7 more
wiley   +1 more source

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

open access: yesJournal 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   +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

open access: yesJournal 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   +4 more
wiley   +1 more source

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