Results 171 to 180 of about 40,447 (267)

Research on the mechanism of walking error in large-span sludge scraper. [PDF]

Sci Rep
Wang Y, Jiang R.
europepmc   +1 more source

Multi‐level fatigue reliability assessment of reinforced concrete railway bridges

Structural Concrete, EarlyView.
Abstract This paper presents a multi‐level reliability framework for assessing the fatigue life of reinforced concrete (RC) railway trough bridges subjected to cyclic loading. The framework incorporates increasing levels of analytical complexity and real‐world data in four steps. First, an analytical model applies S–N curves and the Palmgren–Miner rule
Silvia Sarmiento, Jaime Gonzalez‐Libreros, Chao Wang, Lennart Elfgren, Ola Enoksson, Tommy Höjsten, Lars‐Olof Andersson, Gabriel Sas   +7 more
wiley   +1 more source

Research on multi-stage on-board detection algorithm of track defects of high-speed railway based on the influence mechanism of track defects. [PDF]

Sci Rep
Li J, Shi H, Qiu J, Shi J, Yu Z, Jiang Z.   +5 more
europepmc   +1 more source

Effective axial strength of laterally strengthened RC pier heads with post‐tensioning method

Structural Concrete, EarlyView.
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, Hyunjin Ju, Benjamin Täubling‐Fruleux, Alfred Strauss   +3 more
wiley   +1 more source

Vision language models for bridge inspections: A review of applications in image‐based damage documentation

Structural Concrete, EarlyView.
Abstract Automating bridge inspections requires more than detecting individual damage instances. It demands systems capable of describing, contextualizing, and interpreting damage in an inspection‐relevant manner. Conventional computer vision approaches, such as object detection and segmentation, primarily address visual recognition tasks and are ...
Rona Firdes Çelik, Ulas Bagci, Sylvia Kessler   +2 more
wiley   +1 more source

Transportation control and epidemic containment: empirical evidence from China's Wuhan lockdown. [PDF]

Front Public Health
Zhang M, Zhang Y, Yu F, Wen Y.
europepmc   +1 more source

The “We” and “Me” of Identity in Hazardous Industry Organizations: Face Work Tactics Among Practicing Engineers

Symbolic Interaction, EarlyView.
In this paper, we use Goffman's notion of “face work” to examine how pipeline engineers perform and present their working selves as competent experts. Our analysis identifies various faces and face work tactics, including a focus on professional judgment, actively selling one's expertise relative to others, protective self‐deprecatory strategies, and ...
Sarah Maslen, Jan Hayes, Michael James Walsh   +2 more
wiley   +1 more source

High-fidelity numerical framework for crashworthiness evaluation of passenger car body structures under full-frontal impact. [PDF]

Sci Rep
Ponnusamy B.
europepmc   +1 more source

Defining Lines of Defense Against Change Propagation Using Cause‐Consequence Analysis

Systems Engineering, EarlyView.
ABSTRACT Complex engineered systems are the core of modern society. So that engineered systems and infrastructure can be sustainable and offer value over the course of their lifespan, there is a growing need for such systems to be changeable. Yet, establishing and operationalizing changeability can be challenging due to the potential for change ...
Lindsey Jacobson, Scott Ferguson
wiley   +1 more source

Automatic 3D railroad alignment detection using modified Hough transform. [PDF]

Sci Rep
Lee J, Park J, Shin H, Yoon H.
europepmc   +1 more source