Results 251 to 260 of about 4,722,607 (293)
Some of the next articles are maybe not open access.
Proceedings of the IRE, 1938
The general characteristics of the ideal output tube for broadcast receivers are discussed briefly with respect to specific electrical and acoustical requirements. Considerations of practical power-tube design indicate that the tube most nearly approaching the ideal characteristics is one having an accelerating grid (screen) and a control grid which ...
openaire +1 more source
The general characteristics of the ideal output tube for broadcast receivers are discussed briefly with respect to specific electrical and acoustical requirements. Considerations of practical power-tube design indicate that the tube most nearly approaching the ideal characteristics is one having an accelerating grid (screen) and a control grid which ...
openaire +1 more source
Laser Power Beaming On A Shoestring
AIP Conference Proceedings, 2008The NASA Centennial Challenge for Power Beaming is a prize offered for a competitive demonstration of wireless power transmission. The minimum viable competition entry for 2007 was required to deliver greater than 200 watts to a moving 10‐kilogram vehicle over a vertical distance of 100 meters.
Jordin T. Kare +2 more
openaire +1 more source
Power positron beams as a new branch of beaming
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014Despite being one of the most accessible forms of antimatter today, positron beams are barely used in High Energy Density Physics (HEDP). For classical problems of HEDP, they offer no immediate advantages in comparison to electron and ion beams, and their production requires more expensive and complicated procedure.
openaire +1 more source
Power carried by a nonparaxial TM beam
Journal of the Optical Society of America A, 2009In paraxial optics, the power carried by an optical beam can be accurately calculated by means of the integral of the squared modulus of its electric field over a plane transverse to the propagation axis. However, for nonparaxial electromagnetic beams, it is more appropriate to define the power carried by the beam by the integral of the longitudinal ...
openaire +2 more sources
Power positron beams as a new branch of beaming research
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014Some of the most desirable problems in modern physics are impossible to solve at the current stage of technical and technological development. So, the main role today should belong to theoretical research aimed at new, innovative approaches and solutions.
openaire +1 more source
Composite ceramics for power beaming
2017 IEEE Wireless Power Transfer Conference (WPTC), 2017In the search for candidate materials for a robust mm-wave heat-exchanger, composite materials composed of a thermally conductive “host” material and a small inclusion of a very lossy material are particularly promising. However, there is little data available on the properties of materials in the W-band, a frequency range which is particularly useful ...
BenMaan Jawdat +6 more
openaire +1 more source
Rotational-beam power theorems
IEEE Transactions on Electron Devices, 1965General power theorems for rotational electron beams and some moving plasmas are derived by using three sets of variables: Clebsch variables, Lin's variables, and polarization variables. In each case, the most general power theorem, with unspecified linear operators, is given and for the polarization-variable case this is specialized to some cases of ...
openaire +1 more source
SPIE Proceedings, 1993
FEL power beaming has broad application to space operations. The Rocketdyne Division of Rockwell International Corporation has examined the commercial applications of beamed power from Earth to space using the Radio Frequency LINAC Free Electron Laser (RF FEL) and has determined that there is a substantial addressable market. Rocketdyne's experience in
Michael C. Lampel +5 more
openaire +1 more source
FEL power beaming has broad application to space operations. The Rocketdyne Division of Rockwell International Corporation has examined the commercial applications of beamed power from Earth to space using the Radio Frequency LINAC Free Electron Laser (RF FEL) and has determined that there is a substantial addressable market. Rocketdyne's experience in
Michael C. Lampel +5 more
openaire +1 more source

