News
NASA Rover Beams Telephoto Images Back to Earth

NASA's Mars Curiosity has debuted the first recorded human voice that traveled from Earth to another planet and back. The voice playback was released along with new telephoto camera views of the varied Martian landscape during a news conference at NASA's Jet Propulsion Laboratory, Pasadena, Calif....

News
New Imaging Technique Measures Electrocatalytic Activity of Nanoparticles

By modifying the rate at which chemical reactions take place, nanoparticle catalysts fulfill myriad roles in industry, the biomedical arena, and everyday life. They may be used for the production of polymers and biofuels, improving pollution and emission control devices,...

News
Flat Lens Focuses Light Without Imparting Distortions

Applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have created an ultrathin, flat lens that focuses light without imparting the distortions of conventional lenses.

At 60 nanometers thick, the flat lens is essentially two-dimensional, yet its focusing...

News
Smartphone Imaging Tools Track Objects On the Battlefield

Using smartphones' GPS and imaging capabilities, University of Missouri researchers have developed new software that determines the exact location of distant objects, as well as monitors the speed and direction of moving objects. The software could eventually allow smartphone-armed...

News: Green Design & Manufacturing

Vanderbilt University researches have developed a way to combine Photosystem 1 (PS1), the photosynthetic protein that converts light into electrochemical energy in spinach with silicon (the material used in...

INSIDER: Defense

Unmanned aerial vehicles (UAVs), such as those used by the military for surveillance and reconnaissance, could be getting a hand – and an arm – from engineers at Drexel...

INSIDER: Defense

A Tennessee company has licensed award-winning software from Oak Ridge National Laboratory that will help industries install wireless networks more cost-effectively in...

INSIDER: Defense

Michael Lekas and Sunwoo Lee, electrical engineering Ph.D. candidates, have been awarded a Qualcomm Innovation Fellowship (QInF) and the accompanying $100,000 prize....

News
NASA Robotic Prototype Lander Sails to 100 Feet

With a whistle and a roar, the "Mighty Eagle," a NASA robotic prototype lander, sailed to an altitude of 100 feet.

During the 35-second run, the vehicle was "open loop," navigating autonomously without the command of the onboard camera and flying on a preprogrammed flight profile.

Once it...

News
Researchers Use Simulated Sunlight to Test PV Efficiency

PML researchers have devised a novel source of portable sunlight that may fill an urgent need in renewable energy research – namely, light sources that generate a near-perfect solar spectrum to be used in testing the performance and efficiency of photovoltaic (PV) materials.

The...

Question of the Week
Does Wave Energy Have Potential?

The first commercially licensed grid-connected wave-energy device in the United States, designed by the New Jersey-based Ocean Power Technologies, is in its final weeks of testing before a planned launch in October. The computer-equipped buoy captures the energy created by a wave, which is fueled by the...

Briefs: Physical Sciences
Lightweight, Miniature Inertial Measurement System

accurate inertial navigation system (INS) is coupled with GPS receivers to provide stable and highly accurate positioning, attitude, and inertial measurements while being subjected to highly dynamic maneuvers. In contrast to conventional methods that use extensive, ground-based, real-time...

Briefs: Physical Sciences
Optical Density Analysis of X-Rays Utilizing Calibration Tooling to Estimate Thickness of Parts

This process is designed to estimate the thickness change of a material through data analysis of a digitized version of an xray (or a digital x-ray) containing the material (with the thickness in question) and various tooling. Using this process, it...

Briefs: Physical Sciences
Beat-to-Beat Blood Pressure Monitor

This device provides non-invasive beat-to-beat blood pressure measurements and can be worn over the upper arm for prolonged durations. Phase and waveform analyses are performed on filtered proximal and distal photoplethysmographic (PPG) waveforms obtained from the brachial artery. The phase analysis is used...

Briefs: Physical Sciences
Measurement Techniques for Clock Jitter

NASA is in the process of modernizing its communications infrastructure to accompany the development of a Crew Exploration Vehicle (CEV) to replace the shuttle. With this effort comes the opportunity to infuse more advanced coded modulation techniques, including low-density parity-check (LDPC) codes that...

Briefs: Physical Sciences
Fuel Cell/ Electrochemical Cell Voltage Monitor

A concept has been developed for a new fuel cell individual-cell-voltage monitor that can be directly connected to a multi-cell fuel cell stack for direct substack power provisioning. It can also provide voltage isolation for applications in high-voltage fuel cell stacks. The technology consists of...

Briefs: Physical Sciences
Anomaly Detection Techniques With Real Test Data From a Spinning Turbine Engine-Like Rotor

Online detection techniques to monitor the health of rotating engine components are becoming increasingly attractive to aircraft engine manufacturers in order to increase safety of operation and lower maintenance costs. Health monitoring remains a...

Briefs: Physical Sciences
Measuring Air Leaks Into the Vacuum Space of Large Liquid Hydrogen Tanks

Large cryogenic liquid hydrogen tanks are composed of inner and outer shells. The outer shell is exposed to the ambient environment while the inner shell holds the liquid hydrogen. The region between these two shells is evacuated and typically filled with a powder-like...

Briefs: Physical Sciences
Antenna Calibration and Measurement Equipment

A document describes the Antenna Calibration & Measurement Equipment (ACME) system that will provide the Deep Space Network (DSN) with instrumentation enabling a trained RF engineer at each complex to perform antenna calibration measurements and to generate antenna calibration data. This data...

Briefs: Manufacturing & Prototyping

High-precision mirrors for space applications are traditionally manufactured from one piece of material, such as lightweight glass “sandwich” or...

Briefs: Manufacturing & Prototyping

The sounding rocket experiment FIRE (Far-ultraviolet Imaging Rocket Experi ment) will improve the science community’s ability to image a spectral region hitherto unexplored...

Briefs: Electronics & Computers

On medium- to long- duration human spaceflight missions, latency in communications from Earth could reduce efficiency or hinder local operations, control, and monitoring of the various...

Briefs: Electronics & Computers
Single-Pole Double-Throw MMIC Switches for a Microwave Radiometer

In order to reduce the effect of gain and noise instabilities in the RF chain of a microwave radiometer, a Dicke radiometer topology is often used, as in the case of the proposed surface water and ocean topography (SWOT) radiometer instrument. For this topology, a single-pole...

Briefs: Electronics & Computers
On Shaft Data Acquisition System (OSDAS)

On Shaft Data Acquisition System (OSDAS) is a rugged, compact, multiple-channel data acquisition computer system that is designed to record data from instrumentation while operating under extreme rotational centrifugal or gravitational acceleration forces. This system, which was developed for the Heritage...

Briefs: Electronics & Computers

Commonly, field-programmable gate arrays (FPGAs) being developed in cPCI embedded systems include the bus interface in the FPGA. This complicates the development because the interface is...

Briefs: Materials

Ablative materials are required to protect a space vehicle from the extreme temperatures encountered during the most demanding (hyperbolic) atmospheric...

Briefs: Materials

A long-term space mission requires efficient air revitalization performance to sustain the crew. Prefilter and particulate air filter media are susceptible to rapid fouling that adversely affects...

Briefs: Materials
Polyurea-Based Aerogel Monoliths and Composites

A flexible, organic polyurea-based aerogel insulation material was developed that will provide superior thermal insulation and inherent radiation protection for government and commercial applications. The rubbery polyurea-based aerogel exhibits little dustiness, good flexibility and toughness, and...

Briefs: Mechanical & Fluid Systems
Modular, Rapid Propellant Loading System/Cryogenic Testbed

The Cryogenic Test Laboratory (CTL) at Kennedy Space Center (KSC) has designed, fabricated, and installed a modular, rapid propellant-loading system to simulate rapid loading of a launch-vehicle composite or standard cryogenic tank. The system will also function as a cryogenic testbed...

Videos