JPL archives and records overview
Explore the source record for details and available documents.
Engineering topics
Publications and source records attributed to Young, M..
Explore the source record for details and available documents.
Self-assembled glass microsphere membranes as an alternative transpiration membrane for application in a Knudsen Compressor are discussed.
Explore the source record for details and available documents.
A fully three-dimentional particle-in-cell simulation model was developed to obtain ion propulsion charge-exchange plasma environment over the entire downstream-to-upstream region for the Deep Space 1 (DS1) spacecraft.
A multiple-write electron beam lithography techniques is described as linear filter on the grating spatial frequency spectrum.
We use a two-band tight-binding model to analyze the basic electronic, optical, and transmission properties of the graded superlattice quantum cascaed laser (QCL) design.
Multi-wavelength arrays of colliding pulse mode-locked (CPM) lasers have been demonstrated for wavelength division multiplexing (WDM) applications. The need for increased bandwidth is driving the development of both increased speed in time division multiplexing (TDM) and more channels in WDM for fiber optic communication systems.
The current status of tunable diode lasers (TDLs) for spectroscopy and metrology systems is reviewed.
Current NESS winds operations provide approximately 1800 high quality wind estimates per day to about twenty domestic and foreign users. This marked improvement in NESS winds operations was the result of computer techniques development which began in 1969 to streamline and improve operational procedures. In addition, the launch of the SMS-1 satellite in 1974, the first in the second generation of geostationary spacecraft, provided an improved source of visible and infrared scanner data for the extraction of wind estimates. Currently, operational winds processing at NESS is accomplished by the automated and manual analyses of infrared data from two geostationary spacecraft. This system uses data from SMS-2 and GOES-1 to produce wind estimates valid for 00Z, 12Z and 18Z synoptic times.
We describe a simple and inexpensive means of enhancing repetitive signals obscured by noise with roughly equal amplitude. The signal and noise are displayed on an oscilloscope, and we perform a time average over many traces by time exposure photography. If the oscilloscope triggering is synchronous with the signal, the result is a significant suppression of the offending noise.
Apollo 11 fines and rocks analysis by chromatography, mass spectrometry and light and scanning electron microscopy