Results 41 to 50 of about 16,616 (129)

Further developments in simple total energy sensors [PDF]

open access: yes
A simple total energy probe concept using principles of laminar flow around a cylinder and pressure distribution is reviewed and flow fields around cylinders normal to and inclined to the flow are described. A variety of bent-up probe configurations were
Nicks, O. W.
core   +1 more source

Power Smoothing Control of a Grid-Connected Marine Current Turbine System Using Supercapacitors [PDF]

open access: yes, 2013
Les variations de la vitesse des courants marins induisent généralement de grandes fluctuations de la puissance produite par une hydrolienne. La houle est considérée comme principale source de variation à très court terme des vitesses de courants.
BENBOUZID, Mohamed   +3 more
core   +4 more sources

Body MRI artifacts in clinical practice: a physicist\u27s and radiologist\u27s perspective. [PDF]

open access: yes, 2013
The high information content of MRI exams brings with it unintended effects, which we call artifacts. The purpose of this review is to promote understanding of these artifacts, so they can be prevented or properly interpreted to optimize diagnostic ...
Graves, Martin J, Mitchell, Donald
core   +1 more source

Collaborative development of diffraction-limited beamline optical systems at US DOE light sources [PDF]

open access: yes, 2019
An ongoing collaboration among four US Department of Energy (DOE) National Laboratories has demonstrated key technology prototypes and software modeling tools required for new high-coherent flux beamline optical systems. New free electron laser (FEL) and
Assoufid, L   +17 more
core  

Trajectory-correction propulsion system Patent [PDF]

open access: yes, 1966
Spacecraft trajectory correction propulsion ...
Schmitz, B. W., Smith, W. W.
core   +1 more source

Development and Implementation - DSIF Development [PDF]

open access: yes
Antenna system instrumentation, phase modulator designs, control systems for transmitter and motor generator, and related DSIF ...

core   +1 more source

Experiment definition phase shuttle laboratory LDRL-10.6 experiment [PDF]

open access: yes
The 10.6 microns laser data relay link (LDRL 10.6) program was directed to applying optical communications to NASA's wideband data transmission requirements through the 1980's.

core   +1 more source

Experimental clean combustor program: Noise study [PDF]

open access: yes
Under a Noise Addendum to the NASA Experimental Clean Combustor Program (ECCP) internal pressure fluctuations were measured during tests of JT9D combustor designs conducted in a burner test rig.
Riloff, N., Jr., Sofrin, T. G.
core   +1 more source

Radiation pyrometer for gas turbine blades [PDF]

open access: yes
A turbine blade temperature measuring system for liquid oxygen turbopumps is reported. The system includes a three mode, two-input optical signal processor, interconnecting cable, and four sensor heads. Two of the heads are aperture type, while the other
Compton, W. A., Rohy, D. A.
core   +1 more source

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