Results 71 to 80 of about 6,257,228 (299)

Study of the time-dependent clear water scour around circular bridge piers

Journal of Hydrology and Hydromechanics, 2017
The local scour around bridge piers influences their stabilities and plays a key role in the bridge failures. The estimation of the maximum possible scour depth around bridge piers is an important step in the design of the bridge pier foundations.
Aksoy Aysegul Ozgenc, Bombar Gokcen, Arkis Tanıl, Guney Mehmet Sukru   +3 more
doaj   +1 more source

Experimental and smoothed particle hydrodynamics‐finite element method simulation investigation of synergistic erosion mechanism of gangue‐based abrasive water jets

Deep Underground Science and Engineering, EarlyView.
This study proposes an eco‐friendly coal permeability enhancement technique by utilizing mine waste gangue as an abrasive in high‐pressure water jets. Integrating erosion experiments with smoothed particle hydrodynamics‐finite element method coupled simulations, the research study elucidates the flow field dynamics and a nonlinear solid–liquid ...
Qingxiang Wang, Jiaxu Tang, Qiheng Ren, Ding Wang, Tong Wang   +4 more
wiley   +1 more source

Assessment of Local Scour at Bridges Abutment

Research Journal of Applied Sciences, Engineering and Technology, 2014
Social and economical damages are the most important damages of the bridge failure. Stability problems of such structures against failure and the depth of the abutments are directly related to the amount of the adjusted scour. Economy, reliability and stability have been the main concerns on enhancing the designing of abutment bridges to prevent or ...
Pezhman Taherei Ghazvinei, Junaidah Ariffin, Jazuri Abdullah, Thamer Ahmed Mohamed   +3 more
openaire   +1 more source

Effect of Sequential and Combined Space‐Based Stressors on Perovskite Solar Cell Stability

EcoEnergy, EarlyView.
A correlation between loss in performance and mobile ion concentration has been established by sequential stressing of perovskite solar cells under Low Earth Orbit conditions with exposure to protons, light, and thermal cycling. It is shown that the loss in performance increases when ion concentration increases and vice versa.
Saivineeth Penukula, Brandon K. Durant, Megh N. Khanal, Mohin Sharma, Todd A. Byers, Vincent R. Whiteside, Haley P. Harblin, Ian R. Sellers, Bibhudutta Rout, Nicholas Rolston   +9 more
wiley   +1 more source

Taxon‐dependent multisite species turnover in fragmented habitats: comparing zeta diversity across birds, butterflies, and cursorial hunting spiders

Ecography, EarlyView.
Habitat fragmentation alters species diversity and reshapes community composition. However, conventional pairwise approaches to compositional variation (i.e. beta diversity metrics) do not explicitly characterize how species sharing or turnover change with the number of habitat patches.
Shirui Yu, Yufeng Zhou, Qiyu Jiang, Jie Xie, Yan Wang, Qiwen Du, Shang Sheng, Yaqian Cui, Kai Zhang, Zhixin Wen, Hao Yu, Yu Xu   +11 more
wiley   +1 more source

Numerical Investigation of Local Scour Around Double Triangular Prisms Using a DBM–LBM Coupled Model

Journal of Marine Science and Engineering
Local scour is a typical hydro-sediment coupled process around near-bed obstacles. Its intensity and spatial distribution are jointly controlled by the surrounding-flow structure, sediment transport, and bed-feedback deformation.
Keyao Li, Aojie Sun, Yong Peng
doaj   +1 more source

Scour-inducing flow around gravity anchors astride pipelines in currents

, 2014
This study simulated steady currents travelling past gravity anchors astride pipelines wallmounted on an immobile bed. Three-dimensional governing equations were solved with a Petrov–Galerkin finite element method.
L Cheng, X Zhao, Zhao, Ming (R16667), Zhao, Xu, M Zhao, Cheng, Liang   +5 more
core   +1 more source

Decoupling environmental suitability from realized recruitment through ontogenetic environmental filtering in a long‐lived Mediterranean palm species

Ecography, EarlyView.
Long‐lived plants facing anthropogenic disturbance often exhibit recruitment failure despite persistent reproductive adults, generating extinction debt masked by longevity. However, whether adult presence reliably reflects environmental suitability for recruitment remains unclear.
Sebastián Cordero, Florencia R. Pérez, Renata Acuña‐Molina, Yerco Contreras‐Vera, Trinidad Jorquera‐Fonck, Felipe Góngora‐Vásquez, Benjamín González‐Ramos, Juan Pablo‐Núñez, Ignacia Roselló, Ágata Sepúlveda‐Vásquez, Matías A. Vergara, Francisco E. Fontúrbel   +11 more
wiley   +1 more source

Influence of flow unsteadiness on local scour at bridge piers: An energy-based perspective

International Journal of Sediment Research
Local scour at piers is a major cause of bridge failures worldwide. While most existing studies assume steady flow conditions, actual flood events are inherently unsteady, with distinct rising and falling limbs that significantly modify scour dynamics ...
Qigang Chen, Jiacheng Li, Pengfei Li, Qiang Zhong   +3 more
doaj   +1 more source

Re‐evaluating impaired consciousness in temporal lobe epilepsy: The role of language dominance and network reorganization

Epilepsia, EarlyView.
Abstract Objective Temporal lobe epilepsy (TLE) frequently affects clinically‐classified ictal consciousness, which the 2025 International League Against Epilepsy (ILAE) classification operationalizes through clinical assessment of awareness and responsiveness.
Radheshyam Stepponat, Marc Berger, Laurin Schäfer, Laura Flamm, Kathrin Kollndorfer, Silvia Bonelli, Gregor Kasprian, Ekaterina Pataraia, Florian Ph. S. Fischmeister   +8 more
wiley   +1 more source