Tunnel model for rigid disks near close packing.
Partition function for tunnel model of rigid disks evaluated in asymptotic limit of reduced volume, including close-packed value of closed systems area
DISK↗
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Results for “packs”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Flat pack interconnection structure simplifies modular electronic assemblies
Flat pack interconnection structure composed of stick modules simplifies modular electronic assemblies by allowing a single axis mother board. Two of the wiring planes are located in the stick module, which is the lower level of assembly, with the third wiring plane in the mother board.
Katzin, L.↗
Helical pack tape recorder transport Final report
Design of helical pack tape recorder transport capable of handling 2000 feet of 1/2 inch magnetic tape
TRANSPORT↗
Limitations imposed by demagnetizing fields on bit packing densities within Mn-Bi films
Limitations imposed by demagnetizing fields on bit packing densities within thin ferromagnetic films of manganese bismuthide
BISMUTH COMPOUND↗
Experimental determination of the mass transfer coefficient in the cooling of moist grain after drying in multisectional packed heat exchangers
Mass transfer coefficient in moist grain cooling after drying in multisectional packed heat exchanger
HEAT EXCHANGER↗
Determination of the optimum thickness of layers in multisectional packed heat exchangers
Determination of optimum thickness of layers in multisectional packed heat exchangers
HEAT EXCHANGER↗
Packaging flat-packs for spacecraft applications
Packaging methods for electronic components encased in flat pack geometries, and spacecraft applications of proposed methods
ELECTRONIC PACKAGING↗
Rotary-knife stripper facilitates removal of X-ray film from pack
Rotary-knife stripper facilitates removal of X ray film from the daylight pack paper sleeve. The new stripper is rectangular, approximately 4 inches wide, 5 inches high, and 7 inches long.
Mitchell, D. K.↗
Teflon-packed flexible joint
Teflon-packed flexible joint separates the movement of the shaker from the liquid nitrogen hose during the ground testing of cryogenic zero-g equipment. The joint allows the hose to lie on the floor in a stationary position as the shaker moves back and forth, thus, the hose is not subject to violent motion.
Belmont, G. E.↗
Dielectric constant and loss tangent of Eccofoam PT, at 2.3 GHz, for various packing densities
Dielectric constant and loss tangent of epoxy foam for various packing densities in antenna system
Lane, F. L.↗
Disk pack cleaning table Patent Application
Device for removing plastic dust cover from digital computer disk packs for inspection and cleaning
Guy, J. T., Sr.↗
Determination of mean operating life and shelf life for the radiation survey meter and personal radiation dosimeter battery packs
Service and shelf life tests of radiation survey meter and personal radiation dosimeter battery packs used on Apollo spacecraft
Source record↗
Cone penetration resistance test - An approach to evaluating in-place strength and packing characteristics of lunar soils
Cone penetration resistance tests on granular lunar soil simulants for in-place shear strength and packing characteristics under various gravity conditions
Cohron, G. T.↗
Development of a portable life support system and emergency life support pack
The design, development, and fabrication of a feasibility model of a breathing bag life support system for extravehicular activity are discussed. The breathing vest and back pack portable life support system contains connectors which allow external water and gas supply. At a metabolic rate of 2000 BTU per hour, the two low pressure bottles provide 27 minutes of breathing gas for a total filled system weight of 30.5 pounds.
Source record↗
Operation and maintenance, fire rescue air-pack. Volume 2: Communications
The operation and maintenance procedures are described for the development model of the fire rescue air pack (FRAP) voice amplifier assembly, including the battery charger. Operational instructions include a general description of the assembly, specifications, and installation and operation. Maintenance instructions include theory of operation, preventive maintenance, repair, adjustment, and a parts list. The FRAP is intended to permit fire rescue personnel to enter a smoke-filled, toxic or oxygen depleted environment carrying their own source of breathing air. The voice amplifier assembly permits the wearer to communicate by voice with other persons in the vicinity. The battery charger assembly provides a means of keeping the amplifier batteries fully charged.
Source record↗
Ice pack heat sink subsystem - phase 1, volume 2
The design, development, and test of a functional laboratory model ice pack heat sink subsystem are discussed. Operating instructions to include mechanical and electrical schematics, maintenance instructions, and equipment specifications are presented.
Roebelen, G. J., Jr.↗
Design, development, and fabrication of a prototype ice pack heat sink subsystem. Flight experiment physical phenomena experiment chest
The concept of a flight experiment physical phenomena experiment chest, to be used eventually for investigating and demonstrating ice pack heat sink subsystem physical phenomena during a zero gravity flight experiment, is described.
Roebelen, G. J., Jr.↗
Porous bead packings for gas chromatography
Porous polyaromatic packing beads have low polarity, high efficiency, short retention time, and may be synthesized in size range of 50 to 150 micrometers (100 to 270 mesh). Mechanically strong beads may be produced using various materials depending on elements and compounds to be identified.
Pollock, G. E.↗