Results 71 to 80 of about 5,108,447 (194)

Adaptive noise cancelling and time–frequency techniques for rail surface defect detection [PDF]

open access: yes, 2015
Adaptive noise cancelling (ANC) is a technique which is very effective to remove additive noises from the contaminated signals. It has been widely used in the fields of telecommunication, radar and sonar signal processing.
Liang, B.   +11 more
core   +1 more source

Analysis of the reasons to wear and damage the rails depending on technical–operating conditions of the track

open access: yesPojazdy Szynowe, 2017
Diagnosis of the track superstructure is a significant element among the factors contributing to improvement of technical condition of railway infrastructure in Poland.
Roksana Licow, Franciszek Tomaszewski
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

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

Effects of surface defects on rolling contact fatigue of rail [PDF]

open access: yes, 2011
Rolling contact fatigue damages on the surface of rail such as head check, squats are one of growing problems. Squats are originated from the white etching layer (WEL) or the dent on rail surface and accompanied with dark spots including cracks.
Jungwon Seo   +5 more
core   +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

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

Modelling water vapor permeability through atomic layer deposition coated photovoltaic barrier defects [PDF]

open access: yes, 2014
Transparent barrier films such as Al2O3 used for prevention of oxygen and/or water vapour permeation are the subject of increasing research interest when used for the encapsulation of flexible photovoltaic modules.
Robbins, David   +5 more
core   +1 more source

Insights Into Paint‐Bake Toughening of Resistance Spot Welds of a 2.0 GPa Warm‐Stamped Medium‐Mn Steel

open access: yessteel research international, EarlyView.
Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan   +8 more
wiley   +1 more source

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