13,181 research outputs found
Eye-controlled ''teletypewriter''
Oculometer provides dynamic measurement of subject's look direction, and its outputs can be used to generate visual display of his look pattern and/or to cause equipment operation associated with his lookpoint at given times. Measured eye-direction information could be used as control input at man/machine interface
Transport phenomena in ionized gases as an initial value problem
Transport phenomena in ionized gases as initial value proble
Plasma diffusion as an initial value problem
Plasma diffusion as initial value proble
State Case Studies of Infant and Early Childhood Mental Health Systems: Strategies for Change
Profiles efforts to develop mental health identification and intervention systems for children up to age 5 in Colorado, Indiana, Massachusetts, and Rhode Island. Examines hurdles, reform potentials, and lessons learned, including the role of partnerships
Spaceborne memory organization, an associative data acquisition system, phase II Final report, Apr. - Dec. 1966
Spaceborne memory organization, associative data acquisition system design, and data compression technique
Observations of the Ca II K line in Hel0830A dark points on August 3, 1985
Spectroheliograms taken in the light of He I 10830 A at the National Solar Observatory Vacuum Telescope on Kitt Peak were used to identify coronal holes and bright points (BPs). Target points were identified, coordinates calculated, and spectra recorded. For each spectrum, the difference in wavelength between the Ca II K minimum and the FeI reference line was calculated. It was noteworthy that the overall effect is a blueshift. It should be noted that if material of chromospheric density moves outward at this velocity, it could supply the mass flux of the solar wind if this chromospheric flow was concentrated in a few dozen sources, each of a diameter of a few arc seconds
SEASAT synthetic-aperture radar data user's manual
The SEASAT Synthetic-Aperture Radar (SAR) system, the data processors, the extent of the image data set, and the means by which a user obtains this data are described and the data quality is evaluated. The user is alerted to some potential problems with the existing volume of SEASAT SAR image data, and allows him to modify his use of that data accordingly. Secondly, the manual focuses on the ultimate focuses on the ultimate capabilities of the raw data set and evaluates the potential of this data for processing into accurately located, amplitude-calibrated imagery of high resolution. This allows the user to decide whether his needs require special-purpose data processing of the SAR raw data
Radii and binding energies in oxygen isotopes: a puzzle for nuclear forces
We present a systematic study of both nuclear radii and binding energies in
(even) oxygen isotopes from the valley of stability to the neutron drip line.
Both charge and matter radii are compared to state-of-the-art {\it ab initio}
calculations along with binding energy systematics. Experimental matter radii
are obtained through a complete evaluation of the available elastic proton
scattering data of oxygen isotopes. We show that, in spite of a good
reproduction of binding energies, {\it ab initio} calculations with
conventional nuclear interactions derived within chiral effective field theory
fail to provide a realistic description of charge and matter radii. A novel
version of two- and three-nucleon forces leads to considerable improvement of
the simultaneous description of the three observables for stable isotopes, but
shows deficiencies for the most neutron-rich systems. Thus, crucial challenges
related to the development of nuclear interactions remain.Comment: 6 pages, 5 figures, Submitted to Nature Physics, April 12th 2016;
first version (v1 Arxiv) Internal Report Preprint Irfu-18 December 2015. 6
p., 5 fig., Submitted to Physical Review Letters, April 29, May 3rd 2016; 2nd
version. Int. Rep. Irfu-24 May 2016. Published in PRL, 27 July 2016 with the
modified title (Radii and binding energies in oxygen isotopes: a challenge
for nuclear forces
Hydrogenation of Si from SiNx(H) films: Characterization of H introduced into the Si
A promising method to introduce H into multicrystalline Si solar cells in order to passivate bulk defects is by the postdeposition annealing of a H-rich, SiNx surface layer. It has previously been difficult to characterize the small concentration of H that is introduced by this method. Infrared spectroscopy has been used together with marker impurities in the Si to determine the concentration and depth of H introduced into Si from an annealed SiNx film
Characteristics of Magnetoplasmas Semiannual Status Report No. 12, May 1 - Oct. 31, 1965
Magnetoplasma characteristics - anomalous diffusion across magnetic field, heat conduction in plasma, cesium plasma generator, and electron velocity distribution function in magnetoplasma
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