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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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1,631 records · Page 82

All sources NASA NTRS DOE OSTI

NASA NTRS2026

Power Optimal Control Allocation for Distributed Electric Propulsion in a Series/Parallel Hybrid Powertrain

This paper describes a thrust allocation scheme that minimizes power consumption in an electrified powertrain with Distributed Electric Propulsion. It takes advantage of an observation about component efficiency maps, that efficiency is often highest at high torque/high speed conditions. This optimal approach is demonstrated to satisfy total thrust and net yaw axis torque requirements, making it suitable for utilizing differential thrust for maneuvering.

electrified aircraft propulsion↗

NASA NTRS1992

Proper battery system design for GAS experiments

The purpose of this paper is to help the GAS experimenter to design a battery system that meets mission success requirements while at the same time reducing the hazards associated with the battery system. Lead-acid, silver-zinc and alkaline chemistry batteries will be discussed. Lithium batteries will be briefly discussed with emphasis on back-up power supply capabilities. The hazards associated with different battery configurations will be discussed along with the controls necessary to make the battery system two-fault tolerant.

Calogero, Stephen A.↗

NASA NTRS2026

Radiation Chemistry Simulations: Basis and Application to Dosimeters and DNA Damage

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Ianik Plante↗

NASA NTRSDate not supplied

Astronaut Crew Quarters (ACQ) Suit Testing, Potential Hazards, and Medical Monitoring and Response

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Kenneth Jeff Myers↗

NASA NTRS2026

Overview of A Ground Test of A Hybrid Electric Turbofan Engine

NASA/GE Power Extraction Demonstration Summary Presentation for Turbine Engine Technology Symposium (TETS) 2026.

Cassandra J Miller↗

NASA NTRS1965

Investigations leading to the development of a primary zinc-silver oxide battery of improved performance characteristics Final report, 1 Jul. 1964 - 30 Jun. 1965

Design of silver oxide-zinc battery of limited cycle life with no degradation in discharge voltage characteristics

SILVER OXIDE↗

NASA NTRS1965

A program to develop a high-energy density primary battery with a minimum of 200 watt hours per pound of total battery weight third quarterly report, jan. - mar. 1965

Electrochemical study of prospective electrode- electrolyte systems for high-energy primary battery with minimum of 200 watt hours per pound of total battery weight

ELECTRODE↗

NASA NTRS1964

A program to develop a high-energy density primary battery with a minimum of 200 watt hours per pound of total battery weight first quarterly report, jul. - sep. 1964

Highly conductive nonaqueous electrolytes for high energy battery

CONDUCTIVITY↗

NASA NTRSDate not supplied

Improving PBL Temperature and Water Vapor Information by Combining Hyperspectral MW and IR Sounders with Active Lidar Measurements

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SiFSAP↗

NASA NTRS1994

Measurement of Interfacial Tension of Immiscible Liquid Pairs in Microgravity

A discussion is given of a containerless microgravity experiment aimed at measuring the interfacial tension of immiscible liquid pairs using a compound drop rotation method. The reasons for the failure to execute such experiments in microgravity are described. Also, the results of post-flight analyses used to confirm our arguments are presented.

Michael C Weinberg↗

NASA NTRS1966

A program to develop a high-energy density primary battery with a minimum of 200 watt hours per pound of total battery weight Seventh quarterly report, Jan. 1 - Mar. 31, 1966

Cathodic materials for high energy density storage battery

ENERGY STORAGE DEVICE↗

NASA NTRS1967

A program to develop a high-energy density primary battery with a minimum of 200 watt hours per pound of total battery weight Quarterly report, 1 Oct. - 31 Dec. 1966

High energy density primary battery - film formation on cupric fluoride cathodes discharged in organic electrolytes

COPPER FLUORIDE↗

NASA NTRS1966

Supporting Research and Advanced Development. Space Programs Summary No. 37-41 Volume IV for the Period August 1 to September 30, 1966.

Research summaries on systems analysis, guidance and control, environmental factors, engineering development, propulsion, space sciences, and telecommunications

ENVIRONMENT SIMULATION↗

NASA NTRSDate not supplied

Battery and Power Systems Designed by NASA

The engineering team in the Propulsion and Power Division designs, develops, tests and evaluates electric power and safe battery system solutions.

Martin Martinez↗

NASA NTRS2003

Lunar and Planetary Science XXXIV

The 34th Lunar and Planetary Science Conference was held March 17-21, 2003. Topics included planetary exploration, crater research on Mars, Earth, Moon, and other planets or satellites, imaging techniques and image analysis, age determination, albedo studies, petrographic studies, isotope composition studies, instrument design, sampling methods, landform analysis, asteroids, impact analysis, impact melts, and related research.

Lunar and Planetary Institute↗

NASA NTRS1984

The Telecommunications and Data Acquisition Report

Tracking and ground-based navigation; communications, spacecraft-ground; station control and system technology; capabilities for new projects; networks consolidation program; and network sustaining are described.

E C Posner↗

NASA NTRSDate not supplied

In-Space Manufacturing of Electronics

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Cadre Francis↗

NASA NTRSDate not supplied

Battery Design and Safety

Power is essential for crewed and uncrewed spaceflight operations. Spacecraft batteries are designed and tested to be safe under extreme environmental conditions.

Melvin Abraham↗