Results 81 to 90 of about 766,816 (270)

Mortalidad y estancia hospitalaria relacionada con trauma ocupacional atendido durante el fin de semana en el servicio de emergencias.

open access: yesRevista Cuarzo, 2018
Objetivo. Los desenlaces del trauma ocupacional agudo (TOA) puede estar condicionado al desarrollo industrial y al momento de la semana de ocurrencia; se comparó la mortalidad y estancia hospitalaria (EH) de trabajadores que presentaron TOA en ...
Aníbal A Teherán   +7 more
doaj   +1 more source

Stage‐specific biological nitrogen fixation depends on distinct carbon and nitrogen availability in long‐term fertilized paddy fields

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Industrial Haber–Bosch provides 32 Tg nitrogen (N) per year to global croplands. Such large amounts of N fertilization will reshape soil N cycles. One uncertainty is whether and how these long‐term N inputs impact soil biological N2 fixation (BNF) associated with plant ...
Xinyue Hu   +10 more
wiley   +1 more source

Optimization of a Time-of-Arrival-Ridge Estimation Iterative Model for Ultra-Wideband Positioning in a Long Linear Area

open access: yesSensors
Ultra-wideband (UWB) technology is widely used for high-precision indoor positioning due to its adaptability to various environments. However, in long linear areas, such as tunnels or corridors, the near-linear deployment of base stations caused by ...
Mengqian Li   +5 more
doaj   +1 more source

TOA und Rückfallrisikoreduzierung:eine Einschätzung zur Verzerrungdurch Selbstselektion

open access: yesTOA-magazin, 2020
Die Rückfallquote spielt eine zentrale Rolle in der Forschung zu Restorative Justice (RJ). Ein Grund dafür ist der zunehmende Einsatz von RJ innerhalb der Strafjustiz. Für Regierungen und Gesellschaften ist es wichtig, ihre Reaktionen auf Kriminalität so auszurichten, dass Rückfälligkeit reduziert und somit die öffentliche Sicherheit verbessert wird ...
Claessen, Jacques   +3 more
openaire   +2 more sources

TOA Estimation of Chirp Signal in Dense Multipath Environment for Low-Cost Acoustic Ranging

open access: yesIEEE Transactions on Instrumentation and Measurement, 2019
In this paper, a novel time of arrival (TOA) estimation method is proposed based on an iterative cleaning process to extract the first path signal. The purpose is to address the challenge in dense multipath indoor environments that the power of the first
Lei Zhang   +3 more
semanticscholar   +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

Interannual Variations of TOA Albedo over the Arctic, Antarctic and Tibetan Plateau in 2000–2019

open access: yesRemote Sensing, 2020
Recent changes in Earth’s climate system have significantly affected the radiation budget and its year-to-year variations at top of the atmosphere (TOA). Observing high-latitude TOA fluxes is still challenging from space, because spatial inhomogeneity of
Dong L. Wu   +3 more
doaj   +1 more source

Bayesian CRLB for hybrid ToA and DoA based wireless localization with anchor uncertainty [PDF]

open access: yes, 2015
In this paper, we derive the Bayesian Cramér-Rao lower bound for three dimensional hybrid localization using time-of-arrival (ToA) and direction-of-arrival (DoA) types of measurements.
Abreu, Guiseppe   +2 more
core  

Determining bismuth content in GaAsBi alloys by energy‐dispersive X‐ray spectroscopy: A case study with multiple sets of k*‐factors for analytical transmission electron microscopy

open access: yesJournal of Microscopy, EarlyView.
Abstract Measuring the bismuth (Bi) content of ternary gallium arsenide bismuthide (GaAsBi) alloys is important because it sensitively influences their bandgap, and Bi is known to segregate vertically to the surface and sometimes also laterally during growth, so elemental distribution maps need to be quantified.
T. Walther
wiley   +1 more source

Increase of the coordinate measurement accuracy in the multi-static radar in case of the receiving position placement on the aerial vehicle

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The dependence of the accuracy of the object's coordinates estimation on the relative position of transmitting and receiving points of the multi-position radar system was studied.
V. V. Legkostup, V. E. Markevich
doaj  

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