Results 141 to 150 of about 6,764,654 (283)

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Predicting vasovagal syncope during head-up tilt test: three machine learning approaches. [PDF]

open access: yesFront Neuroinform
Klemenc M   +5 more
europepmc   +1 more source

Tractor Testing; PTO Test; Jeep

open access: yes, 1949
"Willys Jeep being tested at Nebraska Tractor Test Laboratory." Willys-Overland Motors Jeep CJ-3A Universal is shown inside the tractor test lab. After WWII, with many jeeps being surplus and a lack of tractors, the Jeep as well as the Dodge Power wagon ...
Nebraska Tractor Test Laboratory
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Evaluation of Orthostatic Hypotension in Patients With Idiopathic Parkinson's Disease Utilizing the Head-Up Tilt Test. [PDF]

open access: yesCureus
Ramanan BBV   +6 more
europepmc   +1 more source

The Relationship Between Unexplained Chest Pain in Children and Head-Up Tilt Test. [PDF]

open access: yesFront Pediatr, 2022
Wang Y   +7 more
europepmc   +1 more source

Tractor Testing; Drawbar; Test Car

open access: yes, 1920
"View of tractor and dynamometer car in 1920. Fred Laub driving. Lew Wallace in test car." The tractor is not identifiable. This load/test car was a second edition of the first open test car, which was called the bath-tub by the ...
Nebraska Tractor Test Laboratory
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Diagnostic value of short-duration head-up tilt test for unexplained syncope: a non-inferiority study. [PDF]

open access: yesBMC Cardiovasc Disord
Yang S   +8 more
europepmc   +1 more source

Ford 1600 Diesel, test 1228

open access: yes, 1976
The Ford 1600 Diesel is being driven on the tractor test track followed by the test car and an Oliver ...
Nebraska Tractor Test Laboratory
core  

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