Ultrasonic attenuation in superconducting lead.
Ultrasonic attenuation in lead measured to determine superconducting energy gap
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Ultrasonic attenuation in lead measured to determine superconducting energy gap
Hand-operated die set bends, without damage, electrical component leads to perfectly match holes in printed circuit board. This tool speeds up printed circuit fabrication and reduces the number of component rejections.
Segmentation of transistor bonding stripes and the inherent inductance of individual leads provides ballast for even current distribution across the junction of a high-frequency transistor.
The NASA Manned Spacecraft Center has been actively involved in the direction and support of programs leading to the selection and validations of the atmosphere for forthcoming Gemini and Apollo missions. This paper discusses the engineering and physiologic considerations involved, describes the investigations to validate spacecraft atmospheres, and discusses the implications derived from the results of these investigations.
Leading shock wave ahead of earth and effect on radiation belt
Wing planforms with highly swept subsonic leading edges at Mach 3
Semiautomatic device with a four-terminal network tests quantities of components having biaxial leads. The four-terminal network permits the testing of components in different environments. This device is easily modified for completely automatic operation.
Slip ring lead wires composed of ternary alloys of silver, have high electrical conductivity, a tensile strength of at least 30,000 psi, high ductility, and are solderable and weldable. An unexpected advantage of these alloys is their resistance to discoloration on heating in air.
Static aerodynamic characteristics of rocket model vehicles with thick wedge fins with sweptback leading and trailing edges - supersonic wind tunnel testing of vehicle longitudinal stability
Determinations of solid-liquid phase transformations of igneous rocks - concepts leading to use of lunar magma products
Chemiluminescence of chemical compounds released in upper atmosphere and model of releases leading to upper atmospheric chemi-ionization
Anomalous energy intensity ratios in muonic atomic spectra of lead and bismuth
Low subsonic wind tunnel and free flight drop test investigation of paraglider with large inflatable tapered leading edges and keel
Theoretical anisotropic energy gap of superconducting lead when photon density of states is principal source of gap anisotropy
Lead plated aluminum ring provides a positive static seal for a large diameter pressure vessel for use in a hazardous environment at cryogenic temperatures with high pressure fluid flow. This design can be used in high and low pressure lines of any diameter for any fluid, with appropriate material modification.
Evaluation of corrosion resistant silver alloys for use in lead wires for slip-ring assemblies of Saturn guidance and control systems
Simulated lunar materials research leading to utilization of extraterrestrial resources
Numerical method for determining transient blade motions of rotor with flapping and lead-lag degrees of freedom