Results 1 to 10 of about 513,727 (201)

Character displacement [PDF]

open access: yesCurrent Biology, 2020
David and Karin Pfennig introduce character displacement, the divergent evolution of traits in overlapping species.
David W, Pfennig, Karin S, Pfennig
openaire   +2 more sources

Behavior of pre-stressed intersecting cable steel bridge

open access: yesEngineering Structures and Technologies, 2022
Cable-stayed bridges are known as one of the most effective and graceful forms of bridges. The main problem in the design of cable-stayed steel bridges is their deformability, especially under asymmetrical loads.
Povilas Dabrila
doaj   +1 more source

Numerical Analysis of the Strength Properties of the Movable Connection [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The purpose of the paper was to design geometric models of the movable connection made of brass for three different attachment options and three different loads.
Amadeusz Dziwis   +4 more
doaj   +1 more source

Performance Evaluation of Low-Cost Multi-Frequency GNSS Receivers and Antennas for Displacement Detection

open access: yesApplied Sciences, 2021
Low-cost Global Navigation Satellite System (GNSS) receivers are currently used in various engineering applications. These low-cost devices are regarded as suitable sensors for applications in areas with a high risk of instrument damage.
Veton Hamza   +3 more
doaj   +1 more source

New Hydraulic Sensor for Distributed and Automated Displacement Measurements with Temperature Compensation System

open access: yesSensors, 2021
Structural health monitoring (SHM) is a challenging task, especially in the context of ground and geotechnical structures. They are characterized by a set of random mechanical parameters, depending on the location but also changing with external ...
Łukasz Bednarski   +3 more
doaj   +1 more source

PERFORMANCE ANALYSIS OF SIX-PHASE INDUCTION MACHINE-MULTILEVEL INVERTER WITH ARBITRARY DISPLACEMENT

open access: yesElectrical engineering & Electromechanics, 2020
Purpose. This paper presents a d-q model of six-phase induction machine supplied by a two identical voltage source inverters suitable for analysis the dynamic steady under balanced operating condition.
Marwa Ben Slimene
doaj   +1 more source

Ground-Based Radar Interferometry for Monitoring the Dynamic Performance of a Multitrack Steel Truss High-Speed Railway Bridge

open access: yesRemote Sensing, 2020
With the continuous expansion of the high-speed railway network in China, long-span railway bridges carrying multiple tracks demand reliable and fast testing procedures and techniques.
Qihuan Huang   +7 more
doaj   +1 more source

Integral Method for Determining the Stress State of an Anisotropic Reinforced Concrete Shell

open access: yesЖелезобетонные конструкции, 2023
The article deals with the issue of estimating the strength and stress-strain state of a reinforced concrete shell by the method of membrane theory and the theory of infinitesimal bending.
Eugene M. Zveryaev
doaj   +1 more source

Using Machine Learning to Identify Associations between the Environment, Occurrence, and Outcomes of Songbird Displacements at Supplemental Feeders

open access: yesBirds, 2022
The context and outcome of aggressive interactions between individuals has important fitness consequences. Displacements—an aggressive interaction wherein one individual is chased from a location by another—also have implications for social hierarchy ...
Conner S. Philson   +3 more
doaj   +1 more source

The experimental plan of displacement- and frequency-noise free laser interferometer [PDF]

open access: yes, 2008
We present the partial demonstration of displacement- and laser-noise free interferometer (DFI) and the next experimental plan to examine the complete configuration.
Chen, Yanbei   +8 more
core   +1 more source

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