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Fuel-optimal trajectories for aeroassisted coplanar orbital transfer problem
(Publ by IEEE, 1988)
The optimal-control problem arising in coplanar orbital transfer using aeroassist technology is addressed. The maneuver involves the transfer from high earth orbit to low earth orbit with minimum fuel consumption. Simulations ...
In-plane paraconductivity in a single crystal of superconducting YBa2Cu3O7-x
(1989)
Resistivity measurements have been made in the a-b plane on a single-crystal sample of superconducting YBa2Cu3O7-x. The resistivity versus temperature curve shows a highly linear region between 150 and 240 K, with an upward ...
Superconducting and magnetic properties of the oxide superconductors La1.85Sr0.15Cu1-xFexO4
(1987)
Mössbauer and magnetic measurements have been made in the perovskite superconductors La1.85Sr0.15Cu1-x57FexO4 for x=0.0025, 0.005, 0.01, 0.05 and 0.10. The superconducting transition temperature is rapidly depressed as x ...
A method for obtaining single domain superconducting YBa2Cu3O7-x single crystals
(1989)
A method is reported for producing an orthorhombic YBa2Cu3O7-x single crystal comprised entirely of a single untwinned domain. The transformation from a polydomain to a single domain single crystal is carried out by applying ...
Phonon and electron anomalies in the perovskite superconductor (La1.85Sr0.15)Cu0.95Sn0.05O4
(1987)
Mössbauer measurements have been made at 199Sn in the perovskite superconductors La1.85Sr0.15Cu1-xSnxO4. The Sn valence is 4+ for all concentrations. The temperature dependence of the mean-squared displacement for x=0.05 ...