Results 111 to 120 of about 16,676,849 (306)

Research on Tail Rotor Load Test Flight Technology for Helicopters Based on Strain Sensor Measurement

open access: yesSensors
The load characteristics of the helicopter tail rotor system are critical to flight safety and handling performance, and flight testing remains the most direct and reliable means to obtain authentic load data.
Shuaike Jiao   +3 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Effect of AlN Cap Layer on Polarization Coulomb Field Scattering in AlGaN/GaN Heterostructure Field Effect Transistor

open access: yesMicromachines
In this study, AlGaN/GaN heterostructure field-effect transistors (HFETs) with an AlN cap layer and a GaN cap layer were fabricated. The devices were of different sizes. Capacitance–voltage (C-V) and current–voltage (I-V) curves were measured.
Qianding Cheng   +9 more
doaj   +1 more source

Testing, testing [PDF]

open access: yesFrontline Gastroenterology, 2018
openaire   +2 more sources

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  

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Tractor Testing; Belt Power Test; Massey Harris

open access: yes, 1948
"Test no. 401. Massey-Harris Pony. R. Valentine, H. Hartz, E. Dahl (factory representative), H. Mizner, V. Hitt." They are standing behind the Massey-Harris Pony tractor inside the tractor test lab.
Nebraska Tractor Test Laboratory
core   +1 more source

test

open access: yesArt/Research International, 2021
test
doaj  

Testing Vision Is Not Testing For Vision

open access: yesTranslational Vision Science & Technology, 2019
Visual prostheses aim to restore, at least to some extent, vision that leads to the type of perception available for sighted patients. Their effectiveness is almost always evaluated using clinical tests of vision. Clinical vision tests are designed to measure the limits of parameters of a functioning visual system.
openaire   +2 more sources

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  

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