Results 81 to 90 of about 3,005,235 (229)

Breaking down barriers in building teacher competence [PDF]

open access: yes, 2012
Teachers may well be made, not born, and appointments to academic positions are often made without regard to the appointee’s prior experience or competence in teaching.
Bruce Ferguson, Pip   +1 more
core  

Fatigue analysis of catenary contact wires for high speed trains [PDF]

open access: yes, 2011
The fatigue fracture is one of the most critical failures which may occur on the high speed network because it is undetectable and it has a huge impact on traffic disruption.
MAITOURNAM, Habibou   +4 more
core  

Cyclic and Explosive Evaluation of New Proposed Steel Joint

open access: yesAdvances in Civil Engineering, 2016
The behaviour of a novel steel beam-to-column connection, the saddlebag, subjected to cyclic and progressive collapse, was evaluated in this paper. The cyclic behaviour considered the interstory drift angle and flexural strength in accordance with 2010 ...
Iman Faridmehr   +3 more
doaj   +1 more source

Wave energy converter with floating-point absorber and catenary mooring: dynamic coupling analysis

open access: yesFrontiers in Marine Science
Mooring design for floating wave energy converters (WECs) is crucial for station maintaining, efficient power collection, and economic concerns. In order to study the dynamic response of the floating-point absorber under the coupling action of the ...
Dapeng Zhang, Bowen Zhao, Haoyu Jiang
doaj   +1 more source

Overestimation of load-resisting capacity in double-span welded steel beams: a comparative FEM study incorporating ductile damage and element deletion

open access: yesJurnal Ilmiah SINERGI
The study investigates how different finite element modelling assumptions affect the predicted load-resisting behavior of welded beam-column connections in double-span steel beam systems subjected to column-removal scenarios.
Nor Idahyu Mohd Zaman   +3 more
doaj   +1 more source

Impact of accurate reinforcement steel assessment on structure longevity and progressive collapse resistance

open access: yesSustainable Structures
Current standards for reinforcement steel may not accurately reflect the actual properties of steel used in construction, leading to potentially underestimating the resistance and longevity of structures.
Omer Ghunaim   +3 more
doaj   +1 more source

Short-circuit Test Methods for 25 kV AC Catenary of Suburban Railways

open access: yesChengshi guidao jiaotong yanjiu
ObjectiveTo address the urgent need for standardized implementation of 25 kV AC catenary short-circuit testing in suburban railways, a set of systematic and comprehensive short-circuit test methods is proposed.
Jingjie YAN
doaj   +1 more source

Performance of the PR connections under combined Axial-tension and moment loading

open access: yesElectronic Journal of Structural Engineering, 2010
The inherent moment capacity of bolted top-seat angle connections with double web angles (TSDW), categorized as partially restrained (PR) connections according to AISC-LRFD specifications, can be considered in analyses of semi-rigid connections ...
A. Pirmoz   +4 more
doaj   +1 more source

Strengthening of Precast RC Frame to Mitigate Progressive Collapse by Externally Bonded CFRP Sheets Anchored with HFRP Anchors

open access: yesAdvances in Civil Engineering, 2018
Currently, the robustness of precast reinforced concrete frames is attracting wide attention. However, avoiding “strong beams and weak columns” during strengthening against progressive collapse is a key problem.
Jianwu Pan, Xian Wang, Fang Wu
doaj   +1 more source

RESEARCH ON VIBRATION CONTROL METHOD OF TRAIN PANTOGRAPH

open access: yesJixie qiangdu, 2019
In this paper, the vibration control method of train pantograph is studied. A dynamic equation based on Newton’s second law is established for the two element pantograph model.
GUO YanHong
doaj  

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