Results 51 to 60 of about 821 (165)

Large‐scale tests of 50‐year‐old prestressed concrete bridge girders

Structural Concrete, EarlyView.
Abstract An experimental investigation has been carried out as part of the BRIDGE|50 research project, focusing on large‐scale loading tests performed on five 50‐year‐old prestressed concrete (PC) girders. The study aimed at evaluating the structural response of five girders retrieved from a viaduct in the urban area of Turin, Italy, subjected to 4 ...
Francesco Tondolo, Pierclaudio Savino, Donato Sabia, Antonino Quattrone, Fabio Biondini, Gianpaolo Rosati, Mattia Anghileri, Bernardino Chiaia   +7 more
wiley   +1 more source

Structural capacity of precast concrete walls with openings: A parametric study on connection types and reinforcement ratios

Structural Concrete, EarlyView.
Abstract The structural role of precast concrete walls with openings is often overlooked in design practice due to concerns about reduced stiffness, stress concentration, cracking around openings, and potential unexpected failure modes under seismic loading.
Gonçalo Marreneca, Ricardo do Carmo, André Furtado   +2 more
wiley   +1 more source

Sensitivity study on accuracy and relevant parameters in numerical modeling of internal tendon breaks

Structural Concrete, EarlyView.
Abstract This study investigates the numerical modeling of internal tendon breaks in prestressed concrete structures and evaluates the key parameters affecting accuracy. A combined approach is followed, involving global sensitivity analysis via the Elementary Effects Method and subsequent model calibration using experimental data from distributed fiber‐
Aeneas Paul, David Sanio, Peter Mark
wiley   +1 more source

Influence of shear reinforcement detailing on the shear capacity of reinforced concrete beams

Structural Concrete, EarlyView.
Abstract Alternative shear reinforcement layouts that do not fully enclose the longitudinal tensile reinforcement can significantly improve the constructability of reinforced concrete (RC) members. However, their influence on shear transfer mechanisms is not yet fully understood. To address this gap, an experimental program comprising 10 shear tests on
Franz Untermarzoner, Michael Rath, Simon Leitner, Tobias Huber, Johann Kollegger, Patrick Huber   +5 more
wiley   +1 more source

Ecology of declining populations of gray foxes (Urocyon cinereoargenteus) in Indiana, USA Ecología de las poblaciones en declive de zorros grises (Urocyon cinereoargenteus) en Indiana, EE.UU.

Wildlife Monographs, EarlyView.
We estimated seasonal space use, cover selection, and resource selection; evaluated gene flow and potential genetic barriers; and assessed cause‐specific survival rates and reproduction of radiomarked gray foxes in Indiana, USA. Our results provide evidence that gray foxes in Indiana are an edge species with relatively large home ranges, relatively low
Tim L. Hiller, Julia A. Nawrocki, Brandon M. Bernhardt, Lane K. Jeakle, Dawn M. Reding, Geriann Albers   +5 more
wiley   +1 more source

Research on the bearing characteristics of brackets in thick hard roof mining sites and the effect of blasting on roof control

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
Deep mining stress increase and thick hard rock layer endowment drive rock body fissure expansion, leading to sudden fracture of the roof plate accidents. The roof slab of 11,129 working face in Zhangji Mine is a 16 m thick sandstone composite roof slab,
Jiaxin Dang, Min Tu, Xiangyang Zhang, Qingwei Bu   +3 more
doaj   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

Integrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu, Qian‐Nan Zhang, Dang‐Peng Xi   +2 more
wiley   +1 more source

Progressive Dehydrogenation of LiNH2 Materials on Ru(0001) Based on ab initio Interface Models

Journal of Computational Chemistry, Volume 47, Issue 23, September 5, 2026.
Density Functional Theory models of Ru(0001) interfaced with LiNH2, Li2NH, and Li3N show how progressive dehydrogenation stabilizes Li–N–H/Ru interfaces. Calculations using GGA–PBE and PBE–dDsC functionals show that (100) surface orientations minimize lattice mismatch with Ru, thus promoting interface formation.
Justine Dorival, Jérôme Delmas, David Loffreda   +2 more
wiley   +1 more source

2H‐Phase Molybdenum Diselenide/Hollow Carbon Sphere‐Based Separator With “One‐Stone‐Two‐Birds” Effect Boosting High‐Performance Lithium‐Sulfur Batteries

Carbon Neutralization, Volume 5, Issue 5, September 2026.
The synergistic 2H‐MoSe2/HCS coating effectively suppresses the polysulfide shuttle through dual mechanisms of chemisorption and physical confinement. This results in exceptional long‐cycle stability (800 mAh g−1 after 1500 cycles at 1 C), alongside remarkable electrochemical reversibility.
Zhijiang Su, Chunwei Dong, Zhihua Han, Tong Yang, Nannan Zhang, Guanghong Pan, Yang Dong, Xiaojie Sun, Xiangfei Meng, Xiaodong Jian, Dongjie Shi, Jiaye Ye, Qing Jiang   +12 more
wiley   +1 more source

Hemodynamic Modeling and Phase‐Adjustable Reconstruction of Hyperpolarized Cardiac 13C MRS Using 1H Cine and ECG Timing

Magnetic Resonance in Medicine, Volume 96, Issue 3, Page 1054-1065, September 2026.
ABSTRACT Purpose To deconvolve cardiac phase and hemodynamic effects in hyperpolarized (HP) [1‐13C]pyruvate and to develop a cardiac phase‐adjustable reconstruction framework. Methods Cardiac phase drift during dynamic acquisition of HP 13C MRS and its effect on dynamic signal fidelity were simulated using a digital cardiac phantom. A hemodynamic model
Sung‐Han Lin, Corey Mozingo, Crystal E. Harrison, Kelley A. Derner, Craig R. Malloy, Jae Mo Park   +5 more
wiley   +1 more source