Results 1 to 10 of about 1,238,732 (166)
Level of respiratory protection against influenza virus
GMS Hygiene and Infection Control, 2013 [for full text, please go to the a.m. URL]
Joob, Beuy, Wiwanitkit, Viroj
doaj +4 more sources
Assessment of the protection level of continuous production based on the Markov life cycle model [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2022 The article discusses the current level of development of automation technologies for continuous production, taking into account the compliance with the requirements of the fourth industrial revolution Industry 4.0.
Petrov, Dmitry Yurievich
doaj +1 more source
IET Radar, Sonar & Navigation, 2022 Navigation safety is further emphasised for terrain referenced navigation (TRN) systems used in middle‐range unmanned aerial vehicles (UAVs) than those in cruise missiles flying through mountainous areas, because middle‐range UAVs may fly to regions and ...
Haerhee Park, Jinsil Lee, Jiyun Lee
doaj +1 more source
Two-Level Integrity-Monitoring Method for Multi-Source Information Fusion Navigation
Remote Sensing, 2023 To address the issue of integrity monitoring for a multi-source information fusion navigation system, a theoretical framework of two-level integrity monitoring is proposed.
Rui Chen, Long Zhao
doaj +1 more source
Integrity Monitoring of PPP-RTK Positioning; Part I: GNSS-Based IM Procedure
Remote Sensing, 2021 Nowadays, integrity monitoring (IM) is required for diverse safety-related applications using intelligent transport systems (ITS). To ensure high availability for road transport users for in-lane positioning, a sub-meter horizontal protection level (HPL)
Kan Wang +3 more
doaj +1 more source
A Review of the Evolution of the Integrity Methods Applied in GNSS
IEEE Access, 2020 The use of GNSS technologies has been spreading over time up to a point in which a huge diversity of applications require their use. Due to this demand, GNSS has turned into a more reliable technology, as multiple aspects of it have evolved.
Paul Zabalegui +5 more
doaj +1 more source
Journal of Cybersecurity and Privacy, 2021 The evolution of mobile technology has increased correspondingly with the number of attacks on mobile devices. Malware attack on mobile devices is one of the top security challenges the mobile community faces daily.
Moses Ashawa, Sarah Morris
doaj +1 more source
Analysis of the Single Frequency Network Gain in Digital Audio Broadcasting Networks
Sensors, 2021 The single frequency network (SFN) is a popular solution in modern digital audio and television system networks for extending effective coverage, compared to its traditional single-transmitter counterpart.
Kamil Staniec
doaj +1 more source
Frontiers in Microbiology, 2023 Coal mining subsidence lakes are classic hydrologic characteristics created by underground coal mining and represent severe anthropogenic disturbances and environmental challenges.
Wangkai Fang +12 more
doaj +1 more source
Frontiers in Environmental Science, 2022 Revegetation is an important restoration approach after reclamation in coal mining subsidence area. However, few studies have paid attention to the impacts of different vegetation species on soil fertility and bacterial community composition in the ...
Yuming Wang +9 more
doaj +1 more source