Research & information: general books

The application, installation, and monitoring of dynamic strain gage instrumentation on the rotating fan blades...  Read More >>

An optimal control solution is obtained for the descent and landing of a helicopter after the loss of power in level...  Read More >>

A backswept impeller with design mass flow rate of 1.033 kg/sec was tested with both a vaned diffuser and a vaneless...  Read More >>

We derive a deterministic particle method for the solution of nonlinear reaction-diffusion equations in one spatial...  Read More >>

Vapor ingestion phenomena were investigated using scale models of the Centaur liquid hydrogen tank to determine...  Read More >>

The goal of this paper is to compare the accuracy of two approximate confidence interval estimators for the Bernoulli...  Read More >>

One of the biggest challenges for a pilot in the transition to a 'glass' cockpit is understanding the flight management...  Read More >>

The data parallel implementation of a particle simulation for hypersonic rarefied flow described by Dagum associates...  Read More >>

Because of federal and state mandates restricting the use of hexavalent chromium, it was deemed worthwhile to compare...  Read More >>

Recent advances in computing subsonic flow have been applied to helicopter configurations with various degrees of...  Read More >>

The Theory of Intelligent Machines proposes a hierarchical organization for the functions of an autonomous robot...  Read More >>

An electron bombardment ion thruster was used as an ion source to sputter the surfaces of orthopedic prosthetic...  Read More >>

We use nearly contemporaneus low-resolution IUE observations of Mg II h + k emission and Mount Wilson Observatory...  Read More >>

An algorithm and ILLIAC computer program, developed for the simulation of homogeneous incompressible turbulence...  Read More >>

In support of NASA's Fly-By-Light/Power-By-Wire (FBL/PBW) program, a series of flight tests were conducted by NASA...  Read More >>

A propagation model method for extracting the normal incidence impedance of an acoustic material installed as a...  Read More >>

A damage tolerance study of two new toughened carbon fiber/epoxy resin systems was undertaken as a continuation...  Read More >>

Measurements using infrared scanners were made of the radiation from exhaust clouds from liquid- and solid-propellant...  Read More >>

Edge-based elements have proved useful in solving electromagnetic problems since they are nondivergent. Previous...  Read More >>

A computer program was developed for data acquisition and control of axial-torsional fatigue experiments. The multitasked,...  Read More >>

A practical real-time guidance algorithm was developed for guiding aerobraking vehicles in such a way that the maximum...  Read More >>

The International Space Station Plasma Contactor System requires a hollow cathode assembly (HCA) with a lifetime...  Read More >>

A hydrogen fuel-flow valve with an electrohydraulic servosystem is described. An analysis of the servosystem is...  Read More >>

To improve the efficiency of high power microwave tubes, low secondary electron yield electrode surface for use...  Read More >>

Distributed NEPP, a version of the NASA Engine Performance Program, uses the original NEPP code but executes it...  Read More >>