Results 51 to 60 of about 6,809 (207)

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

MATEC 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, Khamlichi Abdellatif, Zakriti Alia   +2 more
doaj   +1 more source

Travel Demand Growth: Research on Longer-Term Issues. The Potential Contribution of Trip Planning Systems [PDF]

, 1990
INTRODUCTION 1.1 The growth in demand for travel Over the 20 years hm 1965, National Travel Survey (NTS) data shows a 61% growth in total person - km of travel.
Hopkinson, P.G., May, A.D.
core  

A Wider View: Amie Siegel's Panorama and the Role of Contemporary Art in Natural History Museum Critique and Practice

Curator: The Museum Journal, EarlyView.
ABSTRACT In Panorama, artist Amie Siegel montaged films made by Carnegie Museum of Natural History (CMNH) staff in the 1930s–1970s when documenting their research expeditions and exhibition projects, along with her own footage shot in the museum. Displayed at Carnegie Museum of Art in 2023–2024, the exhibition made visible the often hidden labors of ...
Deirdre Madeleine Smith
wiley   +1 more source

Improvement of Methods for Ultrasound Control [PDF]

, 2017
Рассмотрена наиболее актуальная проблема рельсовой дефектоскопии – проблема обнаружения поперечных дефектов, находящихся под прикрытием горизонтальных расслоений.
Довгяло, Д. А., Шляхтенок, А. В.   +1 more
core  

Golden weapons and golden fetters: From the gold standard to the new geopolitics

The Economic History Review, EarlyView.
Abstract This paper explores the historical relationship between monetary regimes, security concerns, and geopolitical tensions, particularly focusing on the role of gold. Throughout history, monetary systems have been deeply intertwined with international state systems and security provisions.
Harold James
wiley   +1 more source

Review on Rail Damage Detection Technologies for High-Speed Trains

Applied Sciences
From the point of view of the intelligent operation and maintenance of high-speed train tracks, this paper examines the research status of high-speed train rail damage detection technology in the field of high-speed train track operation and maintenance ...
Yu Wang, Bingrong Miao, Ying Zhang, Zhong Huang, Songyuan Xu   +4 more
doaj   +1 more source

Forward-Looking Echoic Flow for Guidance of an Unmanned Aerial System [PDF]

, 2020
Echoic flow is a formula derived from natural phenomena that has the potential to control vehicles with great efficiency using range information. Initially studied in bats, echoic flow allows animals to use sonar as a navigation tool.
Steven, James
core  

The Very Idea of Seriousness

European Journal of Philosophy, EarlyView.
Abstract What norms govern aesthetic conversations? In Hansen and Adams (2024), we argue for a norm we call, following Stanley Cavell, “the hope of agreement”, along with a requirement of “seriousness”, the “discipline of accounting for one's judgments”.
Nat Hansen, Zed Adams
wiley   +1 more source

The Leaner, Meaner State—And What It Means for Society

Sociology Lens, EarlyView.
ABSTRACT Populism is an old phenomenon but one which appears to once again be in ascendance globally. Attributing a nation's problems to a wicked elite, populists seek to dismantle the old order and either remove or repurpose its institutions. This paper explores how populism changes economic governance and particularly, how its emphasis on fighting ...
Christopher A. Hartwell
wiley   +1 more source

Integration of an Ultrasonic Sensor within a Robotic End Effector for Application within Railway Track Flaw Detection

Applied Sciences
The rail industry is constantly facing challenges related to safety with regard to the detection of surface cracks and internal defects within rail tracks.
Luke Cilia, Christian Andrew Griffiths, Andrew Rees, Jennifer Thompson   +3 more
doaj   +1 more source