Results 141 to 150 of about 422,875 (282)

Tailoring Microstructure and Hardness in Maraging 300 Steel via 2.4 wt.% Niobium Addition and Controlled Aging Treatments

open access: yessteel research international, EarlyView.
High Nb (2.4 wt.%) addition to Maraging 300 steel drives lattice distortion and nanoscale Nb–Mo‐rich precipitation, confirmed by energy‐dispersive X‐ray spectroscopy mapping (Mo ~5.4 wt.%, Nb ~2.5 wt.%). Nanoindentation reveals strong matrix hardening (H >4.8 GPa) at 480°C aging, while 560°C induces ~1.92 vol.% reverted austenite, enabling tunable ...
Laylla Sharon B. Peixoto   +9 more
wiley   +1 more source

Gear, J.H.S. --- 1953-82 -- Correspondence, Individual -- letter, 1963-11-15

open access: yes, 1963
Letter from Gear, James H. S. to Sabin, Albert B.
Gear, James H. S. (James Henderson Sutherland), 1905-
core  

Shimmy in a nonlinear model of an aircraft nose landing gear with non-zero rake angle [PDF]

open access: yes, 2008
This work concentrates on the lateral oscillations in vehicles, also called shimmy, with a particular emphasis on aircraft. A mathematical model of a nose landing gear is discussed with geometric detail that has been mostly neglected in the past research.
Thota, P, Lowenberg, MH, Krauskopf, B
core  

Depth‐resolved X‐ray residual stress analysis on samples with cylindrically shaped surface topography

open access: yesJournal of Applied Crystallography, EarlyView.
Modifications of the fundamental equation of X‐ray stress analysis are proposed that allow correction of the hoop and longitudinal stresses obtained from sin2ψ measurements on samples featuring an inhomogeneous surface topography. The formalism is verified by angle‐ and energy‐dispersive measurements performed on a ferritic steel sample with ...
Manuela Klaus   +4 more
wiley   +1 more source

Alternative Contract Design: Analysing the Bankability of Fungible Derivative Contracts in Energy‐Only Markets

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT With the retirement of 21GW of legacy coal fleet looming, the task to replace Australia's thermal capacity with alternative firmed renewable ‘bulk energy’ solutions is non‐trivial. Indeed, calibrating necessary capital investment in new plant stock with efficient economic outcomes, vis‐à‐vis cost and reliability, represents a fundamental ...
Nicholas Gohdes   +2 more
wiley   +1 more source

SESAR 3 ER 1 Green-GEAR – D1.4 – Project Summary Report

open access: yes
Green-GEAR aims to enable and incentivise optimum green trajectories and airspace use through new ATM procedures, developing three new SESAR Solutions towards TRL2: The “Vertical Guidance using Geometric Altimetry” Solution assessed possible efficiency ...
Bauer, T.   +4 more
core  

Gear, J.H.S. --- 1953-82 -- Correspondence, Individual -- letter, 1978-09-29

open access: yes, 1978
Letter from Gear, James H. S. to Sabin, Albert B.
Gear, James H. S. (James Henderson Sutherland), 1905-
core  

一种新型的仿生步行机构及其运动仿真

open access: yesJixie chuandong, 2010
Imitating animals asymmetric motion,a new-style bionics walking mechanism is designed by using two tandem planetary gear trains,which is composed of one first swiveling arm,one second swiveling arm,two striding rods and walking bracket,etc.In which,the ...
汪永明   +3 more
doaj  

A novel prediction of the transmission accuracy by means of the ıntegrated position error phenomenon for a gear pair

open access: yes
Gear integrated position error (IPE) that was revealed the first time in "George W. Michalec Precision Gearing: Theory and Practice Book" to investigate gear accuracy.

core  

VISUAL NEGOTIATIONS OF GENTRIFICATION IN TORONTO: Contestation, Politicization and Resistance through Urban Signage

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract This article engages signage as a medium through which urban stakeholders negotiate the politics of housing redevelopment and gentrification in cities. Focusing on Toronto, we examine housing‐related signage in three neighbourhoods where social mix approaches to redevelopment have ushered in gentrification: Parkdale, Regent Park, and Moss Park.
Lindi Jahiu   +2 more
wiley   +1 more source

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