NASA Sunblazer Sixth progress report, Oct. 1 - Dec. 31, 1965

Sunblazer spacecraft mechanical, thermal, and orientation design, electronic packaging, and vibration, shock, and acceleration testin

The Dynamics of a Spinning Solar Pressure- Stabilized Satellite with Precession Damping

Dynamic behavior of spinning solar pressure stabilized satellite with precession dampin

First-order Analysis of Sunblazer Orbits

First order analysis and heliocentric orbit of Sunblazer space prob

Computer aided electronic circuit design Status report, Dec. 1, 1967 - May 31, 1968

Computer aided electronic circuit desig

El Campo solar radar system Second semiannual report, Jul. 1 - Dec. 31, 1965

Doppler characteristics of radar echoes reflected by solar coron

Study of a radio probe of the extended solar corona Fifth quarterly progress report, 1 Jul. - 30 Sep. 1965

Test of optical rotation sensor and servo system - radio frequency electronic

Electron paramagnetic resonance studies of slowly tumbling vanadyl spin probes in nematic liquid crystals

An analysis of EPR line shapes by the method of Polnaszek, Bruno, and Freed is made for slowly tumbling vanadyl spin probes in viscous nematic liquid crystals. The use of typical vanadyl complexes as spin probes for nematic liquid crystals is shown to simplify the theoretical analysis and the subsequent interpretation. Rotational correlation times tau and orientational ordering parameters S sub Z where slow tumbling effects are expected to be observed in vanadyl EPR spectra are indicated in a plot. Analysis of the inertial effects on the probe reorientation, which are induced by slowly fluctuating torque components of the local solvent structure, yield quantitative values for tau and S sub Z. The weakly ordered probe VOAA is in the slow tumbling region and displays these inertial effects throughout the nematic range of BEPC and Phase V. VOAA exhibits different reorientation behavior near the isotropic-nematic transition temperature than that displayed far below this transition temperature

Study of a small solar probe /sunblazer/. part i- radio propagation experiment

Electron density of solar corona using radio propagation with coherent multifrequency transmissions from small heliocentric orbiting satellit

Towards a systematic design of isotropic bulk magnetic metamaterials using the cubic point groups of symmetry

In this paper a systematic approach to the design of bulk isotropic magnetic metamaterials is presented. The role of the symmetries of both the constitutive element and the lattice are analyzed. For this purpose it is assumed that the metamaterial is composed by cubic SRR resonators, arranged in a cubic lattice. The minimum symmetries needed to ensure an isotropic behavior are analyzed, and some particular configurations are proposed. Besides, an equivalent circuit model is proposed for the considered cubic SRR resonators. Experiments are carried out in order to validate the proposed theory. We hope that this analysis will pave the way to the design of bulk metamaterials with strong isotropic magnetic response, including negative permeability and left-handed metamaterials.Comment: Submitted to Physical Review B, 23 page