On integration of Hamilton-Jacobi partial differential equation
Integration of Hamilton-Jacobi partial differential equation using Euler equations and Legendre transform - classical example of wave fronts or parallel surfaces
WAVE FRONT↗
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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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The development of dinitrophenol-induced hyperthermia under altered partial pressures of oxygen and carbon dioxide
Dinitrophenol-induced hyperthermia under altered partial pressures of oxygen and carbon dioxide
ANIMAL STUDY↗
Increased individual predisposition of a subject to the effect of high partial oxygen pressure
Toxic effect of high partial oxygen pressure noted in constriction of peripheral visual field
VISUAL FIELD↗
Effects of increased partial pressure of oxygen on the morphological composition of the peripheral blood in animals
Morphological composition of peripheral blood in mice exposed to various periods of increased partial pressure of oxygen
PERIPHERAL CIRCULATION↗
Lie series solutions of partial differential equations Administrative report no. 1, 1 Jul. - 31 Dec. 1965
Lie series solutions for 33 partial differential equations resulting from separation of Helmholtz equation into 11 coordinate systems
PARTIAL DIFFERENTIAL EQUATION↗
A feasibility study of a thin film oxygen partial pressure sensor Final report, 8 Dec. 1964 - 7 Jan. 1966
Thin film oxygen partial pressure sensor
THIN FILM↗
Comparison of Partial-Pressure Analyzers
Comparison of three partial-pressure gas analyzers used in ultrahigh vacuum range
GAS ANALYZER↗
Stability of Solutions to Partial Differential Equations Semiannual Status Report, May 1 - Oct. 31, 1966
Literature review on stability of solutions to partial differential equations
SOLUTION↗
The stability theory of solutions to partial differential equations - A bibliographical survey
Bibliographical survey of research on stability theory of solutions to partial differential equations
PARTIAL DIFFERENTIAL EQUATION↗
Application of dimensional analysis and group theory to the solution of ordinary and partial differential equations Final report, 17 Jan. 1966 - 16 Jan. 1967
Dimensional analysis and group theory methods of solving ordinary and partial differential equations
GROUP THEORY↗
The partial derivatives of the fundamental thermodynamic functions in terms of the variables T and P
Partial derivatives of fundamental thermodynamic functions in terms of temperature and pressure variables
TEMPERATURE EFFECT↗
The reduction of the solution of a game of pursuit for survival payoff to the solution of a couchy problem for a first order partial differential equation
Reduction of solution of game of pursuit for survival payoff to solution of Cauchy problem for first order partial differential equation
GAME THEORY↗
Degeneration of the solutions of certain well- posed systems of partial differential equations depending on a small parameter.
Degeneration of solutions of well-posed systems of first order partial differential equations when particular parameter approaches zero
BOUNDARY VALUE↗
On the single first-order partial differential equation with a small parameter.
Singular perturbation problems for partial differential equations
PARTIAL DIFFERENTIAL EQUATION↗
Parameter and domain dependence of eigenvalues of elliptic partial differential equations.
Parameter and domain dependence of eigenvalues of elliptic partial differential equations
BOUNDARY VALUE↗
Time Parallel Solution of Linear Partial Differential Equations on the Intel Touchstone Delta Supercomputer
Evolutionary partial differential equations are usually solved by decretization in time and space, and by applying a marching in time procedure to data and algorithms potentially parallelized in the spatial domain.
time parallel algorithms decomposition of matrices↗
AIRS CO2 Retrievals Using the Method of Vanishing Partial Derivatives (VPD)
This document consists of presentation slides that review the work being done with observations from the Atmospheric Infrared Sounder (AIRS) using the concept of Vanishing Partial Derivatives. The infrared region is where several minor gases such as CO2, O3, CO, CH4 and SO2 are radiatively active.
Atmospheric Infrared Sounder (AIRS)↗
Control Architecture for a Concept Aircraft with a Series/Parallel Partial Hybrid Powertrain and Distributed Electric Propulsion
Traditional aircraft propulsion control approaches are insufficient for electrified aircraft powertrains due to their increased complexity compared to current systems. New control approaches are required to manage the increased interdependency and complexity of these electrified powertrains. Additionally, electrification enables aircraft to have multiple distributed thrust producing fans that the flight control system can leverage for enhanced maneuverability, further increasing the control complexity. This paper describes the control architecture for a concept vehicle with these characteristics, the SUbsonic Single Aft eNgine (SUSAN) Electrofan. SUSAN is a series/parallel partial hybrid electric single-aisle transport aircraft that leverages its electrified powertrain to provide fuel burn and emissions benefits when compared to the state-of-the-art. Achieving these benefits requires an appropriately designed control architecture that coordinates the various powertrain and flight control subsystems. As such, the SUSAN aircraft is designed with a high level of automation, allowing it to properly manage coupled subsystems and react rapidly to failures and anomalies. This paper presents a summary of the SUSAN powertrain design and discusses several of the novel control approaches used to manage the complex electrified powertrain.
Control↗