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Briefs: Test & Measurement
Monitor Detects White Blood Cell Levels
One of the major side effects of chemotherapy is a sharp drop in white blood cells, which leaves patients vulnerable to dangerous infections. Chemotherapy patients usually receive a dose every 21 days. After each dose, their white blood cell levels fall and then gradually climb again. Doctors usually only...
Briefs: Sensors/Data Acquisition
Aircraft coatings are the first line of defense when it comes to mitigating structural corrosion of an air platform. As new coatings are developed — particularly those that contain non-chrome primers...
Briefs: Materials
It has been established opinion since the 1950s that organic crystals and liquid scintillators can work for detecting neutrons, but that plastics are not suitable for neutron detection. For years,...
Briefs: Propulsion
Innovators at NASA’s Glenn Research Center have developed a simple, lightweight, inline, two-speed drive that can be used either as an overall transmission, or as a supplemental add-on input...
Briefs: Sensors/Data Acquisition
For emergencies involving radiation, decision-makers must have a means to swiftly assess the situation. Having analysis tools that can quickly and reliably make sense of radiation data is of the essence.
Briefs: Test & Measurement
An acknowledged objective of critical-care medicine is a timely, accurate, readily deployable, cost-effective, and, importantly, safe means of assessing and/or monitoring critical...
Briefs: Test & Measurement
NASA Ames Research Center has developed a novel, low-cost, self-contained guidance system for small payload operators. Small satellites are becoming ever more capable of performing valuable missions for both...
Briefs: Software
Overt symptoms of many diseases often do not manifest until days after a person’s initial exposure to the causative pathogen, typically a virus or bacteria. By then, the disease may have...
Briefs: Sensors/Data Acquisition
Mobile Health Platform
A mobile health technology was developed to monitor and predict a user’s psychological status, and to deliver an automated intervention when needed. The technology uses smart-phones to monitor the user’s location and ask questions about psychological status throughout the day.
Briefs: Test & Measurement
When testing composite structures, it is important to understand the response of the structure to the load. Of significance is the formation of damage and growth of that damage leading to...
Briefs: Aerospace
Crew time on the International Space Station (ISS) is extremely limited for any operations on science payloads. Autonomous science experiments in small, self-contained, cubical payloads are highly desirable...
Briefs: Test & Measurement
Laser Technique Detects Toxic Agents in the Atmosphere
A real-time instrument was developed that could scan the atmosphere for toxic agents in order to alert communities to a biological or chemical attack.
Briefs: Mechanical & Fluid Systems
Correlation spectroscopy is an attractive technique for sensing and analysis applications because it combines the attributes of mechanical and optical simplicity, high selectivity, and good sensitivity. In correlation...
Briefs: Mechanical & Fluid Systems
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: Electronics & Computers
Thinning a material down to a single-atom thickness can dramatically change that material’s physical properties. Graphene, the best known two-dimensional (2D) material, has...
Briefs: Materials
Printing Ink Removes Oxygen in Sealed Packages
Oxygen adversely impacts food flavor and nutrition. NASA’s proposed five-year shelf life for astronaut food requires aggressive measures to minimize oxygen. Previously, NASA packaged foods in containers with a high oxygen and moisture barrier. These materials have limiting properties. They contain a...
Briefs: Materials
Surface-Field-Enhanced Detection of Deep UV Photons in Silicon Carbide Avalanche Photodetectors
While silicon carbide (SiC) is an ideal material for building ultraviolet (UV) photodetectors, the absorbed photons get recombined in the first few nanometers at the surface due to a large absorption coefficient in the 200- to 250-nm wavelength band....
Briefs: Sensors/Data Acquisition
For decades, mass spectrometers have offered a relatively fast and highly sensitive way to analyze and detect chemical compounds. But their bulky size has been a hindrance, limiting the in-field potential of the...
Briefs: Motion Control
Piezoelectric materials, which generate an electric current when compressed or stretched, are familiar and widely used; for example, lighters that spark when a switch is pressed,...
Briefs: Test & Measurement
Technique Measures Temperature of 2D Materials at the Atomic Level
Newly developed two-dimensional (2D) materials such as graphene — which consists of a single layer of carbon atoms — have the potential to replace traditional microprocessing chips based on silicon, which have reached the limit of how small they can get. But engineers have been...
Briefs: Test & Measurement
Much can be detected in blood or urine — viral illnesses, metabolic disorders, or autoimmune diseases can be diagnosed with laboratory tests, for instance. But such examinations often take a few...
Briefs: Semiconductors & ICs
Plastic Material Works as a Heat Conductor
Plastics are excellent insulators, meaning they can efficiently trap heat — a quality that can be an advantage in something like a coffee cup sleeve. But this insulating property is less desirable in products such as plastic casings for laptops and mobile phones that overheat, in part, because the...
Briefs: Test & Measurement
Two-photon lithography (TPL), a high-resolution 3D printing technique, is capable of producing nanoscale features smaller than 1/100 the width of a human hair. The technique could enable X-ray...
Briefs: Mechanical & Fluid Systems
Water heaters and other thermal energy storage devices increase the temperature of a medium above an ambient or normal temperature, and store the warmer medium. Water heaters, in particular, must store the...
Briefs: Data Acquisition
Researchers at NASA's Armstrong Flight Research Center (AFRC) have been developing a fiber optic sensing system (FOSS) that represents a major breakthrough in...
Briefs: Test & Measurement
NASA Langley Research Center has developed a test station capable of in-situ testing of material deposition and layer adhesion in an extrusion additive manufacturing process. The technology addresses the problem of...
Briefs: Test & Measurement
Noncontact Sensor Measures Density and Speed of Sound of a Liquid in a Pipeline or Vessel
The need for non-invasive, real-time measurement of the density and speed of sound of a liquid led to the development of an ultrasonic sensing technique based upon the reflection of ultrasound at the solid-fluid interface.
Briefs: Communications
Pressure Sensor Mechanism
The Pressure Sensor Mechanism is designed to measure or monitor tactile pressure. It is based on passive Radio Frequency Identification (RFID) sensor tags and is applicable to a variety of systems. As RFID sensors transmit information wirelessly, they eliminate many challenges associated with traditional wired systems such...
Briefs: Semiconductors & ICs
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.
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