Stories
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Briefs: Aerospace
The alloy has applications in jet turbine disks and other high-stress and/or high-temperature environments.
Briefs: Propulsion
Typical direct-injection engines, such as diesel engines, can produce soot due to fuel-rich combustion conditions. Filters and catalytic converters are currently used to reduce soot and harmful...
Briefs: Aerospace
NASA’s Langley Research Center researchers have developed a novel noise reduction system for jet engines. Aircraft jet engine noise is a major issue for airports, the communities...
Briefs: Test & Measurement
Rangefinder for Measuring Volume of Cryogenic or Caustic Turbulent Fluids
Specific impulse (ISP), or simply impulse (change in momentum) per unit amount of propellant consumed, is a measure of rocket and jet engine efficiency. The amount of propellant, or in the case of engine testing at the Stennis Space Center (SSC), cryogen consumed during...
Articles: Automotive
Steve Arnold Engine Systems Innovations, Inc. Rancho Palos Verdes, CA
Passenger car engines are sized to produce very high horsepower to suit the consumer’s demand...
Briefs: Physical Sciences
Silicon Carbide Power Processing Unit for Hall Effect Thrusters
A high-efficiency, rad-hard, 3.5-kW SiC power supply was developed for the power processing unit (PPU) of Hall effect thrusters. This work specifically targets the design of a PPU power supply for the HiVHAC (High Voltage Hall Accelerator) thruster. The PPU power supply under...
Articles: Research Lab
Over the course of its history, NASA has nurtured partnerships with the private sector to facilitate the transfer of NASA-developed technologies. The benefits of these partnerships have reached...
Briefs: Materials
Self-Assembling, Flexible, Pre-Ceramic Composite Preforms
In this innovation, light weight, high temperature, compact aerospace structures with increased design options are made possible by using self-assembling, flexible, pre-ceramic composite materials. These materials are comprised of either ceramic or carbon fiber performs, which are...
Briefs: Mechanical & Fluid Systems
An experimental combination of an off-the-shelf valved pulsejet combustor and an aerodynamically optimized ejector has shown promise as a prototype of improved combustors for gas turbine...
Briefs: Photonics/Optics
ICCD Camera Enables PLIF Technique for Fuel Visualization in Engines
Large-bore, slow-speed, natural gas two-stoke cycle engines used for power generation and gas compression on natural gas pipelines suffer from poor in-cylinder mixing processes caused by ineffective fuel delivery, which can increase emissions and create low engine efficiency...
Briefs: Motion Control
The designers and manufacturers of fuel cells are continually striving to improve the efficiency of their products. A design challenge facing the engineer relates to...
Briefs: Mechanical & Fluid Systems
A change in the design of the engine inlets of the T-38 airplane significantly reduces takeoff distances while increasing safety margins. Although the newer inlet design (see Figure 1) is based on well-known...
Briefs: Electronics & Computers
As electronic circuits become more densely packaged and higher in power, maintaining them within permissible temperature ranges becomes a major issue. This is especially true in the case of...
Top Stories
Blog: Software
Going for Gold in Winter Olympic Curling
Blog: Energy
Beyond Lithium: The Rise of Calcium-Ion Energy Storage
Blog: Electronics & Computers
The Kitchen Tech Hack Aiming to Revolutionize 3D Printing
Blog: Materials
A Shield for the Next Generation: Lithium Batteries Get a Major Upgrade
Blog: Energy
Batteries that Can Withstand the Cold
Q&A: Physical Sciences
Webcasts
Webinars: Manufacturing & Prototyping
The Over-Engineering Trap: Aligning Custom Equipment Specs with...
Webinars: Communications
Where Time and Frequency Converge: Multi-Channel RF Analysis for...
Webinars: Unmanned Systems
Driving Reliability: Simulation Driven EMI Techniques for Modern...
Editorial Webinars: AR/AI
Smarter Aerospace Manufacturing & Design with Digital Twins and...
Summits: Automotive
2026 Battery & Electrification Summit (Online)
Podcasts: Electronics & Computers
Arm’s Agentic AI CPU: Engineering the Next Generation of AI Data Centers
