Results 61 to 70 of about 7,467,907 (193)

Reliability of rail transverse flaw detection by means of an embedded ultrasonic based device

open access: yesMATEC Web of Conferences, 2018
The main causes of train derailment are related to rail defects such as head surface defects, horizontal defects, vertical longitudinal split defects, star cracks at colt holes and diagonal crack in web. The most adverse form of these defects consists of
Benzeroual Hajar   +2 more
doaj   +1 more source

Design and Development of Novel Airway Device for Transoral Respiratory Monitoring During Sedation

open access: yesThe Laryngoscope, EarlyView.
This article describes iterative design factors and results of clinical testing for a novel medical device that promotes transoral respiratory gas exchange for patients during sedation. A minimally viable prototype was 3D printed from thermoplastic polyurethane and demonstrated high levels of oral retention, gas exchange, and satisfaction among ...
Samuel L. Oyer   +7 more
wiley   +1 more source

YOLOv8n-RSDD: A High-Performance Low-Complexity Rail Surface Defect Detection Network

open access: yesIEEE Access
Detecting surface defects on railway tracks is of significant importance for reducing the risk of safety incidents in high-speed railways. In response to the challenges in the field of railway track surface defect detection, such as insufficient ...
Zhanao Fang   +5 more
doaj   +1 more source

Railway Wheel Flat and Rail Surface Defect Detection by Time-Frequency Analysis

open access: yesChemical Engineering Transactions, 2013
Damage to the surface of railway wheels and rails commonly occurs in most railways and, if not detected at an early stage, can result in rapid deterioration and possible failure incurring high maintenance costs.
B. Liang   +5 more
doaj   +1 more source

Sentipensar [Feel‐Thinking] Cultivates Collective Scientific Sensemaking and Worldbuilding Within and Beyond Ecological Despair

open access: yesScience Education, EarlyView.
ABSTRACT Educating youth about environmental and climate justice is crucial in realizing a sustainable and flourishing future. Yet this can be challenging given the intense eco‐emotions youth experience and express while learning about these consequential realities and their implications.
Kelsie Fowler
wiley   +1 more source

Automatic Identification and Early-warning System for On-board Rail Corrugation Based on Image Processing Technology

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Current daily metro track inspections, including manual detection and track inspection vehicle method, suffer from issues such as low efficiency and high costs, failing to meet the increasing demands for rail transit operation safety ...
Tingrui CUI   +3 more
doaj   +1 more source

Quantum Machine Learning for Cybersecurity: A Taxonomy and Future Directions

open access: yesSoftware: Practice and Experience, EarlyView.
ABSTRACT Context The rapid increase in cyber threats, coupled with increasingly sophisticated attack strategies and the exponential growth of data in recent years, has exposed significant limitations in classical machine learning, rule‐based, and signature‐based defense mechanisms.
Siva Sai   +5 more
wiley   +1 more source

Ohio Hub economic impact analysis. Slide presentation [PDF]

open access: yes, 2007
Title from PDF cover (viewed on Jan. 9, 2008).; "September 20, 2007."; Includes bibliographical references.; Harvested from the web on 1/8/08Gem Public Sector Services (GEM) was retained by the Ohio Rail Development Commission (ORDC) to evaluate the ...
Ohio Rail Development Commission.
core   +3 more sources

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

open access: yessteel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra   +7 more
wiley   +1 more source

Investigation of the Reoxidation and Material Behavior of Directly Reduced Pellets and Fines Under Simulated Rail Transport Conditions

open access: yessteel research international, EarlyView.
The study investigates the reoxidation behavior of DRI pellets (Midrex and H2‐reduced) under realistic conditions, considering the test parameters of temperature, humidity, storage duration, particle size (including fine fraction), and container geometry. The samples are analyzed based on mass changes.
Bernd Taferner   +4 more
wiley   +1 more source

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