Results 41 to 50 of about 167,739 (305)

Analysis of an object detection function of a turnout and a switch machine

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Object detection function of turnout and switch mechanism is one of an important function for safety of railway system. An object between a tongue rail and a stock rail on a turnout is detected by a lock mechanism of a switching machine and circuit ...
Shunsuke SHIOMI   +2 more
doaj   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

Electoral Arrangements and Turnout Variance at the Sub-National Level: Comparative Insights from Three Constituencies in Ghana

open access: yesModern Africa, 2020
Using micro-level data from three constituencies in Ghana, which are cases of high, average and low turnout respectively, I assess whether voters’ perceptions of the cost of voting (resource and time) can explain such variation in voter turnout.
Fortune Agbele
doaj   +1 more source

Understanding public attitudes toward restrictive voting laws in the United States

open access: yesResearch & Politics, 2023
Existing research on voting legislation argues that Republican lawmakers enact strict voting laws as part of a racialized, partisan electoral strategy—they believe that the laws will reduce minority turnout and benefit Republicans electorally.
Katherine Clayton
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Integrated Locking Compensation Mechanism between Suspended Track Beams and Turnout Beams

open access: yesChengshi guidao jiaotong yanjiu
[Objective] To compensate for the preset turnout safety gap between track beam and switch beam of the mobile turnout in the suspended monorail transit system, ensure reliable locking when turnout is in place, and improve the safety and passenger comfort ...
Zhou ZHU
doaj   +1 more source

Nonprofit Messaging and the 2020 Election: Findings from a Nonpartisan Get-Out-The-Vote (GOTV) Field Experiment

open access: yesNonprofit Policy Forum, 2022
A distinct problem for American democracy is that voter participation rates remain higher among older, wealthier, and more highly educated citizens. Through their nonpartisan get-out-the-vote (GOTV) efforts, nonprofit organizations can help to remedy the
LeRoux Kelly   +2 more
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

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