Keyword: Particulate matter (PM)

NASA Spinoff: Test & Measurement
NASA’s need to contain hazardous lunar dust led to technology that senses other pollutants.
Briefs: Energy
The proposed design could reduce nitrogen oxide emissions by 95 percent.
Briefs: Photonics/Optics

An optical setup developed by researchers at Sandia's Combustion Research Facility and the Technical University of Denmark can now quantify the formation of soot — particulate matter consisting...

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: Materials

A device and method have been developed to conduct compression and tensile tests on soft materials such as flocculated sediments, biopolymers, biological materials, and food stuffs. The device...

Briefs: Energy

Wind and solar energy generation creates challenges, since the Sun only shines by day, and sometimes the wind doesn't blow. Another variability is surges of demand on the grid. On a hot...

Briefs: Test & Measurement

Particle analysis is useful for determining chemical compositions in a wide range of disciplines, from ascertaining the source of a petroleum sample to duplicating a fragrance. The technique is appealing...

Briefs: Energy
Bi-Directional Energy Cascades and the Origin of Kinetic Turbulence in the Solar Wind

The kinetic turbulence of solar wind originates in the solar corona. The solar wind carries the fluctuations and escapes from the corona along the open magnetic field lines, and enters into the interplanetary space. The energy exchange among waves and particles...

Briefs: Data Acquisition
Geodesolver for the Geodesic Equation

NASA has a need to determine the distribution of dark matter around planets like Earth. Doing so necessitates the ability to repeatedly solve the geodesic equation in simulations of weakly interacting particles streaming through bodies described by a Schwarzschild metric. Geodesolver numerically solves the...

Briefs: Test & Measurement

A team at the New York University Tandon School of Engineering has made a discovery that could lead to Star Trek-like biosensor devices capable of flagging the...

Briefs: Mechanical & Fluid Systems

NASA Kennedy Space Center seeks partners interested in the commercial application of the Quick Disconnect for High Pressure Mate/De-Mate. Designed at KSC, this technology is intended for use in...

Briefs: Test & Measurement
Mobile Instrument Detects and Samples Aerosol Particles

Hazardous airborne particles pose a risk for health and safety in a variety of environments; thus, detection of these small particles is essential. Current particle magnification systems are bulky and require a lot of power for operation, making them unsuitable to easily detect and analyze...

Briefs: Test & Measurement
Ultra-Sensitive Temperature Sensor

A temperature sensor with practically no effect at all on the temperature of the object measured has been created in the laboratory by researchers at the University of São Paulo (USP) and the University of Campinas (UNICAMP) and is awaiting a patent for commercial production.

Briefs: Manufacturing & Prototyping

High-speed images of a common laser-based metal 3D printing process, coupled with newly updated computer models, have revealed the mechanisms behind material redistribution, a phenomenon that...

Briefs: Materials
Green Approach for Toughening Thermosetting Reactive Resins

Thermosetting reactive resin systems such as epoxy, bismaleimide, and polyimide classes of material are brittle. The origin of brittleness is attributed to the high crosslinking density that exists in the fully cured forms of these materials. Traditionally, the toughness of these resins...

Articles: Mechanical & Fluid Systems

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Aerospace
Development of Sodium Lidar for Spaceborne Missions

The metal layers at mesospheric altitudes are excellent tracers of neutral atmosphere dynamics, and have been used since the 1960s to study the chemistry and dynamics of the mesosphere. Ablation from meteors is believed to be the chief source of metals such as Na, Mg, K, Fe, and Ca in the...

Briefs: Sensors/Data Acquisition
Aerosol-to-Liquid Particle Extraction System (ALPES)

Agents that could be used in chemical and biological warfare tend to disperse widely in the air when released. Quickly collecting a concentrated sample of these agents is critical to detecting them before they reach harmful dose levels in the air. Also, methods of detection such as by...

Briefs: Materials

NASA Langley Research Center has developed fluorinated alkyl ether-containing epoxies designed as an anti-insect coating. The robust and durable coating was developed...

Briefs: Test & Measurement

The foodborne pathogen Escherichia coli O157 causes an estimated 73,000 illnesses and 60 deaths every year in the United States. Better safety tests could help avoid some of the illnesses...

Briefs: Materials

Researchers at NASA have developed new methods to manufacture carbon materials (e.g., nanotubes, graphene) with holes through the graphitic surface of the particles. The...

Briefs: Medical

Researchers have created biosensor technology for wearable devices that continuously analyzes sweat or blood for different types of biomarkers such as proteins that...

Briefs: Robotics, Automation & Control

A fundamental advance in controlling soft robots involves using magnetic fields to remotely manipulate microparticle chains embedded in soft robotic devices. Several devices have been developed...

Articles: Mechanical & Fluid Systems

Proper filtration plays an important role in ensuring that hydraulic systems operate trouble-free. High-performance filters maintain the cleanliness of the hydraulic fluid over its entire service life. In...

Briefs: Communications

A paper-thin, flexible device was created that can generate energy from human motion, and can act as a loudspeaker and microphone. The transducer is ultrathin, flexible, scalable, and...

Briefs: Test & Measurement
Apparatus and Method to Test Abrasion Resistance of Material Using Airborne Particulate

Prior art techniques for testing abrasion resistance, such as the Taber test and the Bayer test, typically use a rubbing or scratching mechanism to test materials for abrasion resistance; specifically, either an abrasive material is rubbed across the test...

Briefs: Test & Measurement

Particulate matter (PM) exposure and health effects have become top U.S. environmental research agenda items over the past decade. Environmental epidemiological studies rely on information from both...

Briefs: Test & Measurement
Personal Air Sampler for Collecting Airborne Aerosol Particulates for Molecular Analysis by Size

Air sampling is used to collect samples of airborne particles present in an environment. Analyses of the air samples can provide information concerning potential exposure to harmful respirable agents. Bioaerosol sampling can be used to identify...

Briefs: Electronics & Computers

Electronic devices are getting smaller and more energy-efficient, meaning that they are more susceptible to single event upsets (SEUs) — malfunctions caused by particles in the atmosphere...

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Briefs: Aerospace

Self-Healing, Recyclable, Shape Memory Polymers

NASA Spinoff: Materials

Nanotechnology Repairs Engine Damage in Cars

INSIDER: Robotics, Automation & Control

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Application Briefs: Sensors/Data Acquisition

Sensing Hazardous Gases Can Save Lives

INSIDER: Semiconductors & ICs

Smaller, Cheaper, and More Dynamic Computer Chips

INSIDER: Motion Control

Non-Contact Tip/Tilt Sensor