Results 191 to 200 of about 340 (264)
Effective axial strength of laterally strengthened RC pier heads with post‐tensioning method
Abstract This study investigates the structural performance enhancement of reinforced concrete (RC) pier heads laterally strengthened with unbonded post‐tensioning (PT) to accommodate increased design loads following a deck replacement of an existing railway bridge.
Yujae Seo +3 more
wiley +1 more source
Archean crust and metallogenic zones in the Amazonian Craton sensed by satellite gravity data. [PDF]
Motta JG +3 more
europepmc +1 more source
Three‐parameter kinematic theory for shear assessment of reinforced concrete short columns
Abstract This work presents a rational kinematics‐based model for assessing the shear capacity of rectangular reinforced concrete short columns. Due to their high stiffness and brittleness, short columns are particularly vulnerable to seismic forces, often exhibiting critical failures.
Daniele Arcuri +2 more
wiley +1 more source
Abstract Several test methods have been proposed in the literature for measuring the level of residual prestress, most of them involving either semi‐ or fully destructive techniques for local measurements which could be highly sensitive to boundary conditions and execution details.
Giuseppe Zarrella +2 more
wiley +1 more source
Anaerobic methane oxidation inducing carbonate precipitation at abiogenic methane seeps in the Tuscan archipelago (Italy). [PDF]
Meister P +10 more
europepmc +1 more source
Exploration of new wildlife surveying methodologies that leverage advances in sensor technology and machine learning has led to tentative research into the application of seismology techniques. This, most commonly, involves the deployment of a footfall trap – a seismic sensor and data logger customised for wildlife footfall.
Benjamin J. Blackledge +4 more
wiley +1 more source
Wavefront sensing at a high‐repetition‐rate X‐ray free‐electron laser
We demonstrate a fast, robust and sensor‐free approach to X‐ray speckle tracking that enables shot‐to‐shot wavefront characterization at high‐repetition‐rate X‐ray free‐electron lasers. Our measurements reveal a hierarchy of wavefront fluctuations indicative of instabilities in the accelerator and beamline optics at the European XFEL.Wavefront ...
Trey Guest +18 more
wiley +1 more source
A model for the spatial coherence of arbitrarily directive noise in the depth-stratified ocean. [PDF]
Walker SC.
europepmc +1 more source
The Multilevel Implications of a Sinn Féin Government in Ireland
Abstract The electoral growth of Sinn Féin on both sides of the Irish border has generated much political and academic attention in recent years. The party could form part of the government in Dublin for the first time at the next Irish general election, though that outcome is far from certain.
Conor J. Kelly
wiley +1 more source
Magma plumbing system and seismicity of an active mid-ocean ridge volcano. [PDF]
Schmid F +4 more
europepmc +1 more source

