Results 11 to 20 of about 1,051,364 (309)

Compressive Downlink Channel Estimation for FDD Massive MIMO Using Weighted $l_{p}$ Minimization

open access: yesIEEE Access, 2019
We propose a weighted Ip minimization method for downlink channel estimation in frequency division duplexing massive multiple-input multiple-output (MIMO) systems.
Wei Lu   +5 more
doaj   +1 more source

A mining-excavation relay compilation warning system based on GIS

open access: yesMeikuang Anquan, 2021
In view of the problems such as the manual compilation of coal mine mining plans, the tedious compilation process of mining excavation relay, and the failure to carry out early warning of mining excavation relay stress, based on GIS theory, the early ...
CHI Baosuo, WANG Qiang, GAO Bin
doaj   +1 more source

A Participatory Process to Develop a Landslide Warning System: Paradoxes of Responsibility Sharing in a Case Study in Upper Austria

open access: yesResources, 2017
During a participatory process in Gmunden, Austria, the organizational and responsibility-sharing arrangements for a landslide warning system proved to be contested issues.
Philipp Preuner   +5 more
doaj   +1 more source

Research on Rollover Stability and an Anti-Rollover Warning System for the Vibroseis Truck

open access: yesApplied Sciences, 2023
Vibroseis trucks are in danger of rollover during the steering process, which severely threatens the safety of the drivers and the equipment. Therefore, it is important to examine approaches to increase the anti-rollover ability of vibroseis trucks ...
Maolin Dai, Zhiqiang Huang
doaj   +1 more source

COVID-19 as a risk factor for long-term mortality in patients managed by the emergency medical system: A prospective, multicenter, ambulance-based cohort study

open access: yesFrontiers in Public Health, 2023
IntroductionCOVID-19 has initially been studied in terms of an acute-phase disease, although recently more attention has been given to the long-term consequences.
José L. Martín-Conty   +19 more
doaj   +1 more source

A correlational research on developing an innovative integrated gas warning system: a case study in ZhongXing, China

open access: yesGeomatics, Natural Hazards & Risk, 2021
Gas explosions and outbursts were the leading types of gas accidents in mining in China with gas concentration exceeding the threshold limit value (TLV) as the leading cause.
Robert M. X. Wu   +16 more
doaj   +1 more source

Early Warning System for Flood Warning in Campings

open access: yes, 2020
The following paper explain a new methodology for an early warning system for rain events at a campsite over the Pyrenees in Lleida in the Northeast of Spain. The typology of rainfall events is well known in this part of the Pyrenees. They are normally events with high intensity and short duration and are mainly distributed over summer and springtime ...
Olivares Cerpa, Gonzalo   +3 more
openaire   +3 more sources

The role of guidelines on pest monitoring and warning systems in integrated pest management

open access: yesJournal of Plant Protection Research, 2018
The rules and guidelines for integrated pest management specified in Annex III, sections 2 and 3, state “General principles of integrated pest management”: Harmful organisms must be monitored by adequate methods and tools, where available.
Anna Tratwal, Marcin Baran
doaj   +1 more source

Validation of a Warning System to Control Brown Rot in Peach and Nectarine

open access: yesAgronomy, 2023
Monilinia spp. is the main pathogen that affects stone fruit, causing significant production losses, especially in seasons with favorable climatic conditions for disease development.
Carla Casals   +5 more
doaj   +1 more source

Earthquake early warning system [PDF]

open access: yes, 2020
As the climate undergoes changes, the number of natural disasters increase and the severity of these occurrences increases over time. As the population of human race increases, natural protective terrains and barriers were destroyed for urbanization due ...
Abas, Khairul Hamimah   +3 more
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