Results 141 to 150 of about 296,851 (358)

An Overview of the Semi-Span Super-Sonic Transport (S4T) Wind-Tunnel Model Program [PDF]

open access: yes, 2012
A summary of computational and experimental aeroelastic (AE) and aeroservoelastic (ASE) results for the Semi-Span Super-Sonic Transport (S4T) wind-tunnel model is presented.
Christhilf, David M.   +8 more
core   +1 more source

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

open access: yesAdvanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz   +14 more
wiley   +1 more source

The law relating to air currents [PDF]

open access: yes
Discussed here are the aerodynamics of a subdivided wing section. The emphasis is upon the increase of lift with more acute angles of attack. Also discussed are wind tunnel tests of the relations among wind resistance, lift, angle of attack, and ...

core   +1 more source

Flexible fastener allows thermal expansion [PDF]

open access: yes, 1964
A flexible fastener permits thermal expansion of model skin sections which are rigidly attached to supporting structures in wind tunnel tests.
Crumpler, W. B.
core   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

Notes on aerodynamic forces III : the aerodynamic forces on airships [PDF]

open access: yes
The results of the two preceding notes are applied to airships and checked with wind tunnel ...
Munk, Max M
core   +1 more source

Perspective: OLED Displays Singing with the Blues

open access: yesAdvanced Materials, EarlyView.
While blue pixels consume approximately 50% of the energy of OLED display front planes, in the 25 years since their invention, 100% internal efficiency triplet‐controlled phosphorescent OLEDs have not met the stability standards necessary for their adoption.
Stephen R. Forrest   +2 more
wiley   +1 more source

Wind-tunnel Tests of a Cyclogiro Rotor [PDF]

open access: yes
During an extensive study of all types of rotating wings, the NACA examined the cyclogiro rotor and made an aerodynamic analysis of that system (reference 1). The examination disclosed that such a machine had sufficient promise to justify an experimental
Wheatley, John B, Windler, Ray
core   +1 more source

Quantification of the Uncertainties for the Ares I A106 Ascent Aerodynamic Database [PDF]

open access: yes, 2010
A detailed description of the quantification of uncertainties for the Ares I ascent aero 6-DOF wind tunnel database is presented. The database was constructed from wind tunnel test data and CFD results.
Favaregh, Amber L., Houlden, Heather P.
core   +1 more source

Tuning Pore Size in Porous Graphene Membrane for O2/N2 Separation

open access: yesAdvanced Materials, EarlyView.
Single‐layer graphene membranes featuring N‐functionalized, 0D pores offer a promising platform for O2/N2 separation. The heterogeneity of functional groups at the pore edge is dynamically tunable, enabling precise tuning of the pore limiting diameter and gas transport.
Kuang‐Jung Hsu   +5 more
wiley   +1 more source

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