Study of Bonding Between Glass and Plastic in Glass-reinforced Plastics, Extended Work Quarterly Progress Report, Jul. 1 - Sep. 30, 1966

Chemical bonding between glass and plastic in glass reinforced plastic composite materia

A study of bonding between glass and plastic in glass-reinforced plastics, phase II SUMMARY technical report no. 2, Nov. 1, 1964 - Oct. 31, 1965

Bonding between plastic materials and inorganic substrate in glass-reinforced plastic

Study of bonding between glass and plastic in glass-reinforced plastics - Extended work Quarterly progress report, Oct. 1 - Dec. 31, 1966

Surface modification effects on composite materials - chemical bonding between glass and plastic in glass reinforced plastic

Study of bonding between glass and plastic in glass-reinforced plastics - extended work Quarterly progress report no. VII, 1 Apr. - 30 Jun. 1966

Bonding between silica glass reinforcement and plastic matrix of glass-reinforced plastic composite materia

A study of bonding between glass and plastic in glass-reinforced plastics - Phase II QUARTERLY progress report no. VI, 1 May - 31 Jul. 1965

Direct bond formation between glass and plastic in glass-reinforced plastic materials - alkylation of surface-based silicon atoms for producing Si-R group

A study of bonding between glass and plastic in glass-reinforced plastics, phase 3 Summary technical report no. 3, 31 Mar. 1966 - 15 Jul. 1967

Mechanical properties of chemical bonding between glass fibers and resin matri

Magnetic Miniband Structure and Quantum Oscillations in Lateral Semiconductor Superlattices

We present fully quantum-mechanical magnetotransport calculations for short-period lateral superlattices with one-dimensional electrostatic modulation. A non-perturbative treatment of both magnetic field and modulation potential proves to be necessary to reproduce novel quantum oscillations in the magnetoresistance found in recent experiments in the resistance component parallel to the modulation potential. In addition, we predict oscillations of opposite phase in the component perpendicular to the modulation not yet observed experimentally. We show that the new oscillations originate from the magnetic miniband structure in the regime of overlapping minibands.Comment: 6 pages with 4 figure

Investigation of reactivity of launch vehicle materials with liquid oxygen Quarterly report, 23 Jul. - 22 Oct. 1968

Reactivity of launch vehicle organic materials with liquid oxyge

Advanced subsonic transport propulsion

A brief review of the current NASA Energy Efficient Engine (E(3)) Project is presented. Included in this review are the factors that influenced the design of these turbofan engines and the advanced technology incorporated in them to reduce fuel consumption and improve environmental characteristics. In addition, factors such as the continuing spiral in fuel cost, that could influence future aircraft propulsion systems beyond those represented by the E(3) engines, are also discussed. Advanced technologies that will address these influencing factors and provide viable future propulsion systems are described. The potential importance of other propulsion system types, such as geared fans and turboshaft engines, is presented

Investigation of Reactivity of Launch Vehicle Materials with Liquid Oxygen

Impact sensitivity and ignition mechanism of organic compounds in liquid oxygen correlated with chemical and physical propertie