Results 61 to 70 of about 99,961 (252)
Critical expansion points: Mechanical signs of surrounding rock instability
Deep Underground Science and Engineering, EarlyView.This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen +4 more
wiley +1 more source
Guidelines and Methods for Conducting Porperty Transfer Site Histories [PDF]
, 1990 HWRIC Project 90-077NTIS PB91 ...
Colten, Craig E., Mulville-Friel, Diane
core
A match coefficient approach for damage imaging in structural components by ultrasonic synthetic aperture focus [PDF]
, 2017 Ultrasonic Synthetic Aperture Focus (SAF) techniques are commonly used to image structural defects. In this paper, a variation of SAF based on ideas borrowed from Matched Field Processing (MFP) is evaluated to reduce artifacts and sidelobes of the ...
Lanza di Scalea, F. +4 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao +5 more
wiley +1 more source
Operating Logic Improvement of the Fixing Type Automatic Park Brake
Вестник Научно-исследовательского института железнодорожного транспорта, 2015 The paper presents information on the development of a new automatic park brake version hereinafter referred to as action mode AST (URD-AST subsystem) control device.
N. V. Malikov +2 more
doaj
Energy Science &Engineering, EarlyView.ABSTRACT Hydrogen (H2) fuel cells are increasingly recognized as a cornerstone technology in the global transition toward clean energy due to their high efficiency and zero‐emission characteristics. This review synthesizes recent progress, challenges, and strategic pathways for the deployment of H2 fuel cells across the transportation, power generation,
Yash Sachin Gupta +5 more
wiley +1 more source
More on the Fatigue Resistance Assessment of the Freight Car Bogies’ Cast Parts
Вестник Научно-исследовательского института железнодорожного транспорта, 2015 Quality of solebars and bolsters is assessed by the value of fatigue safety factor. In the respective calculations they use experimental fatigue limits of individual component parts obtained in the course of their fatigue testing.
A. V. Sukhov, V. A. Reykhart
doaj
Special Libraries, March 1947 [PDF]
, 1947 Volume 38, Issue 3https://scholarworks.sjsu.edu/sla_sl_1947/1002/thumbnail ...
Special Libraries Association
core +1 more source
Fire and Materials, Volume 49, Issue 3, Page 329-346, April 2025.ABSTRACT This study investigates the postfire mechanical properties of epoxy glass‐fiber reinforced composites (EP GFRCs) using increasing concentrations of ammonium polyphosphate (APP) and inorganic silicate (InSi) to modify the char and fire residue.
Sruthi Sunder +5 more
wiley +1 more source
Importance and applications of robotic and autonomous systems (RAS) in railway maintenance sector: a review [PDF]
, 2019 Maintenance, which is critical for safe, reliable, quality, and cost-effective service, plays a dominant role in the railway industry. Therefore, this paper examines the importance and applications of Robotic and Autonomous Systems (RAS) in railway ...
Ackerman +6 more
core +3 more sources