Results 41 to 50 of about 879 (166)

A Methodology for Continuous Monitoring of Rail Corrugation on Subway Lines Based on Axlebox Acceleration Measurements

open access: yesApplied Sciences, 2023
Rail corrugation is a degradation phenomenon that manifests as a quasi-periodic irregularity on the running surface of the rail. It is a critical problem for urban railway lines because it induces ground-borne vibrations transmitted to the buildings near
Leonardo Faccini   +5 more
doaj   +1 more source

Environmental Burden of Diesel Engines: A Life‐Cycle Assessment and the Imperative for Cleaner Alternatives

open access: yesGlobal Challenges, Volume 10, Issue 7, July 2026.
This study reveals that the use phase of diesel engines contributes the greatest environmental burden due to intensive diesel consumption and related emissions. Life‐cycle assessment highlights severe impacts on climate change, fossil fuel depletion, acidification, and particulate pollution, emphasizing the importance of biodiesel integration, hybrid ...
Sanjeev Kumar   +8 more
wiley   +1 more source

Influence of pressure and rotation speed on performance of passive grinding rail

open access: yesJin'gangshi yu moliao moju gongcheng, 2020
The influence of pressure and speed on some grinding performance of passive rail grinding, namely the force, the temperature, the efficiency and the rail surface roughness, was studied on a test platform simulating passive grinding by replacing normal ...
LI Duan, LI Huanfeng, LIU Pengzhan
doaj  

Evolving Pathways of Departure and Return in Rural Thailand

open access: yesPopulation, Space and Place, Volume 32, Issue 5, July 2026.
ABSTRACT This paper draws on a forty‐year longitudinal (1982–2022) village study of Thailand to reflect on how circulation persists, but in new ways. We trace evolving migration flows over a period during which Thailand progressed from low‐income to upper‐middle‐income status, and Non Tae and Tha Song Korn from semi‐subsistence rice‐growing communities
Jonathan Rigg   +4 more
wiley   +1 more source

Futures of Transit Work: Contesting Devaluation and Neoliberal Automation in Bus Transit

open access: yesAnthropology of Work Review, Volume 47, Issue 1, July 2026.
ABSTRACT Being a bus operator has long meant access to middle class wages, quality benefits, and union membership, forms of security increasingly rare amid growing precarity. But transit is in trouble. In the wake of the COVID‐19 pandemic and decades of disinvestment, bus operators face mounting time pressure, frequent violence, and eroding job ...
Hunter Akridge, Sarah E. Fox
wiley   +1 more source

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

open access: yesNations and Nationalism, Volume 32, Issue 3, Page 723-734, July 2026.
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

Bret/BRAT

open access: yes
Critical Quarterly, EarlyView.
Nicholas Smart
wiley   +1 more source

Comparing the In‐Plane Shear Behavior of Glass Fiber‐Reinforced and Carbon Fiber‐Reinforced Polymer Laminates With the Same Epoxy Matrix System in ±45° Tensile Tests

open access: yesPolymer Composites, Volume 47, Issue 12, Page 11051-11068, 20 June 2026.
Schematic illustration of ±45° tensile testing, including detection of first‐ply failure (FPF) by optical crack detection and acoustic emission monitoring, comparison of FPF values with ASTM D3518 and D3039 criteria, and resulting ply level stress states at FPF for GF‐ and CF‐epoxy laminates.
Maria Gfrerrer   +4 more
wiley   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Experimental research on brazed diamond grinding wheel for rail grinding performance

open access: yesJin'gangshi yu moliao moju gongcheng, 2020
In view of the shortcomings of large spark and dust pollution in the grinding of rail with resin grinding wheel, a single layer brazed diamond grinding wheel used for rail grinding is designed and made.
YAN Xinlin   +4 more
doaj  

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