Results 31 to 40 of about 8,623,077 (289)

Directivity-Induced Pulse-Like Ground Motions and Fracture Risk of Pre-Northridge Welded Column Splices [PDF]

, 2020
Recent worldwide earthquakes have emphasized the severe damage potential of pulse-like ground motions caused by forward directivity close to a fault rupture.
Galasso, C, Song, B
core   +1 more source

Proposing an optimal integral-based intensity measure for seismic collapse capacity assessment of structures under pulse-like near-fault ground motions [PDF]

, 2014
Pulse-like near-fault ground motions, which are characterized by the presence of a velocity pulse, can impose large demands in structures, and hence can potentially increase seismic collapse risk.
Nicknam, Ahmad, Ghodrati Amiri, Gholamreza, Yakhchalian, Masood   +2 more
core   +6 more sources

Local and global effects of forward directivity

Građevinar, 2013
Previous studies have revealed that near-fault ground motions perpendicular to the fault slip are very destructive for structures. Due to the common use of moment resisting frames and the importance of near-fault strong motions, the local and global ...
Mohsen Gerami, Davood Abdollahzadeh
doaj   +1 more source

Wavelet‐Based Method for Generating Nonstationary Artificial Pulse‐Like Near‐Fault Ground Motions

Computer-Aided Civil and Infrastructure Engineering, 2014
A method to generate a suite of artificial near-fault ground motion time histories for specified earthquakes is presented. A wavelet-based nonstationary (WB-NS) model has been employed to effectively capture the time-varying frequency content of a particular acceleration record and continuous wavelet transform has been used to simulate the largest ...
Gholamreza Ghodrati Amiri, A. Abdolahi Rad, N. Khanmohamadi Hazaveh   +2 more
openaire   +1 more source

The effect of directivity-induced pulse-like ground motions on fracture risk of welded steel column splices [PDF]

, 2019
Recent, worldwide earthquakes have highlighted the destructive potential of near-fault, pulse-like ground motions caused by forward directivity. This study investigates the fracture risk of welded steel column splices (WCSs) in near-fault regions ...
Galasso, C, Song, B, Song, Biao, Galasso, Carmine   +3 more
core   +2 more sources

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Quantitative bounded method of special long-period ground motions

Magazine of Civil Engineering, 2022
The resonance effect of special long-period ground motions to (super) high-rise buildings is significant, which is likely to cause serious damage to these long-period structures. Therefore, the influence of long-period ground motions cannot be ignored in
Cheng Yu, Dong Yao-Rong, Wang Yuan-Yuan, Qin Li, Li Ye-Xue, Bai Guo-Liang   +5 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Longitudinal seismic response of cross-strait shield tunnels under near-fault andfar-field seismic waves

Yantu gongcheng xuebao
Near-fault pulse-like ground motions with long-period velocity pulses may cause severe damage to subsea shield tunnel structures. However, the longitudinal seismic response analysis of such tunnels poses significant computational challenges due to large ...
ZHAO Kai 1, LUO Hao 1, LI Xiaoxiong 2, MU Tengfei 3, 4, KANG Yuxiang 3, 4, ZUO Xi 5, CHEN Guoxing 1
doaj   +1 more source