Fixed-Wing Angle eVTOL

New design removes the need for mechanisms to perform active tilting of the wings or rotors, reducing system mass.

Anti-Phase Noise Suppression Rotor Technologies

Acoustic optimization for anti-phase asymmetric rotor.

Improved Fixed-Wing Gust Load Alleviation Device

Gust load alleviation is an increasing concern for the design of fixed-wing aircraft with ultra-high aspect wings.

Outer Aileron Yaw Damper

A lightweight alternative to rudders for aircraft with spanwise adaptive wings.

Analyses Find Cause of Fatal Problem in Rocket Engine Combustors

Advanced analyses shed light on the mechanism of a deadly problem plaguing combustion chambers in rocket engines.

Laser Processing Method for Optoelectronic Devices

This method increases the efficiency of light-emitting diodes and other optical elements.

Flexible Micro LEDs for Wearables

These micro LEDs can be folded, twisted, cut, and stuck to different surfaces.

Silicon Chip Improves LiDAR

Bulky, heavy LiDAR systems in self-driving cars could be replaced with a single chip.

Metalens for Virtual and Augmented Reality

The millimeter-sized flat lens can be used in wearable displays for virtual reality, which requires compact, lightweight, and cost-effective components.

Low Separation Force Quick Disconnect Device

A self-aligning, self-healing system for pneumatics and cryogenics with applications in aerospace.

Miniature Separable Fill and Drain Valve

Besides miniature spacecraft propulsion systems, the valve could also have applications in the industrial processing industry where low flow devices are commonly used.

Multi-Link Spherical Joint

Single joint allows six attachments with independent movement.

Self-Aligning Poppet

Testing has shown that NASA's poppet reduces leakage rates of traditional aerospace cryogenic valves by three orders of magnitude.

Ecological Power Storage Battery Made of Vanillin

Vanillin is converted into a redox-active electrolyte material for liquid batteries.

Method Helps Create Fuels from Plants

Scientists have been trying for years to create biofuels and other bioproducts more cheaply.

Maximizing the Performance of Battery Cells for Better Energy Storage

The National Renewable Energy Laboratory is leading the development of new lithium-ion (Li-ion) battery designs specific to the stationary storage requirements.

Photovoltaic Cell Increases Nighttime Power Generation

The device uses a thermoelectric module to generate voltage and current from the temperature gradient between the cell and the air.

A Heat Engine with No Moving Parts

The design could someday enable a fully decarbonized power grid.

New Screening System May Point the Way to Renewable Hydrogen Power

A highly sensitive system for detecting the production of hydrogen gas can foster the development of hydrogen as an alternative to fossil fuels.

Advancing Renewable Energy Production with Solar Thermochemical Hydrogen

Hydrogen has emerged as an important carrier to store energy generated by renewable resources, as a substitute for fossil fuels used for transportation, in the production of ammonia, and for other industrial applications.

Advancing Aerospike Technology Through Algorithmic Engineering

HyperganicMunich, Germanywww.hyperganic.com EOSKrailling, Germanywww.eos.info/en In May 2022, Hyperganic built the world's largest 3D-printed Aerospike rocket engine. It's also the...

New on the Market: August 2022

New products on the market in August 2022, including a next-generation Double-Pulse Tester, power inductors, a smart transmitter, and more.

Columbia School of Engineering and Applied Science

Columbia University is a private Ivy League research university in New York City. Established in 1754 as King's College on the grounds of Trinity Church in Manhattan, Columbia, is the...

Product of the Month

Product of the Month: August 2022 Tech Briefs

Artificial Intelligence: Meet Human Intelligence

A designer’s job gets much more complicated when artificial intelligence is part of the system.

Charting a Safe Course Through a Highly Uncertain Environment

An autonomous spacecraft exploring the far-flung regions of the universe descends through the atmosphere of a remote exoplanet. The vehicle, and the researchers who programmed...

Nanostructured Fibers Can Impersonate Human Muscles

Mimicking the human body, specifically the actuators that control muscle movement, is of immense interest around the globe. In recent years, it has led to many innovations to improve...

An Engineer Uses an Ancient Art to Solve a Very Modern Problem

If you’ve ever made an origami paper crane, using folds and creases to transform a square piece of craft paper into the delicate long-necked bird, it may seem odd that those...