Results 61 to 70 of about 6,809 (207)

Loading of cast supporting structures of three-piece bogie 18-100 in the presence of defects on the surface of wheel rolling

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2016
Results of the loading study of support structures of bogies 18 - 100 with the presence of defects in the form of slides and uneven wheel wear on the rolling surface were shown. Research carried out by strain measurement.
O. G. Krasnov   +2 more
doaj   +1 more source

Early focus development effort, ultrasonic inspection of fixed housing metal-to-adhesive bondline [PDF]

open access: yes
An ultrasonic technique was developed for the fixed housing metal-to-adhesive bondline that will support the Flight 15 time frame and subsequent motors.
Hartmann, John K.   +2 more
core   +1 more source

Carbon Populism and Representative Politics: On Why Fossil Fuel Firms Speaking for ‘The People’ Is a Bad Idea

open access: yesJournal of Management Studies, EarlyView.
Abstract Despite growing recognition that countries around the world must transition to a low‐carbon economy, global greenhouse gas emissions continue to rise. One way that decarbonization has been obstructed, we argue, is by fossil fuel firms intentionally conflating their agenda with ‘the people’, evoking notions of national identity, security and ...
Daniel Nyberg   +3 more
wiley   +1 more source

A feasibility study on in-service non-destructive inspection of railway rails by an ultrasonic technique based on travelling electromagnetic acoustic transducers

open access: yesRailway Engineering Science
This study explores the feasibility of electromagnetic acoustic transducers (EMATs) for ultrasonic rail inspection, focusing on bulk wave generation from the rail head and on defect detection at the central part of the rail foot. As a contactless method,
Andrea Appiani, Michele Carboni
doaj   +1 more source

Nondestructive techniques for characterizing mechanical properties of structural materials: An overview [PDF]

open access: yes
An overview of nondestructive evaluation (NDE) is presented to indicate the availability and application potentials of techniques for quantitative characterization of the mechanical properties of structural materials.
Klima, S. J., Vary, A.
core   +1 more source

Home sweet harm: Confinement and tranquilidad in post‐asylum Peru

open access: yesMedical Anthropology Quarterly, EarlyView.
Abstract This article examines how Peru's Community Mental Health (CMH) model contributes to the exclusion and home confinement of mentally ill individuals. Based on the experience of a woman diagnosed with schizophrenia and her mother, I show how CMH's emphasis on community‐based care often fails in practice, as neighbors respond to people with mental
Julio Villa‐Palomino
wiley   +1 more source

Suppression of additive periodic low-frequency interference on eddy current defectograms

open access: yesМоделирование и анализ информационных систем
Traffic safety in railway transport requires regular inspection of the rail condition to identify and timely eliminate defects. Eddy current flaw detection is one of the popular methods of non-destructive rail testing.
Leonid Y. Bystrov   +2 more
doaj   +1 more source

Automated eddy current analysis of materials [PDF]

open access: yes
The use of eddy current techniques for characterizing flaws in graphite-based filament-wound cylindrical structures is described. A major emphasis was also placed upon incorporating artificial intelligence techniques into the signal analysis portion of ...
Workman, Gary L.
core   +2 more sources

Dread in the Homeland: Symbolic Politics and Ethnonationalist Struggles for Self‐Determination in Nigeria

open access: yesNations and Nationalism, EarlyView.
ABSTRACT The revival of Biafran separatism in contemporary Nigeria is often explained with three leading theoretical frameworks: relative deprivation, political economy and state repression. Whereas relative deprivation and political economy perspectives posit that the resurgent separatism derives from the perception and empirical reality of ...
Promise Frank Ejiofor
wiley   +1 more source

Evolution of the Contact-Fatigue Defects Caused Rail Failure Rate

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2015
There is discussed current situation and problems of rail damageability in operation. It has been indicated that contact-fatigue defects coded as 10, 11, 17, 21 in the standing catalogue of rail defects represent the main type of rail defects responsible
E. A. Shur   +5 more
doaj  

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