Keyword: Compressors

Articles: Motion Control

A new valve concept consists of a solid piston floating in a medium to control a flowstream. Although the conical shape of the seat is a prominent feature of the valve, especially when the concept was...

Briefs: Motion Control

Currently available air motors have many advantages over electric motors. They are more compact, lighter-weight, instantly reversible without sparking, create no heat buildup, are undamaged by...

Briefs: Electronics & Computers

Sandia National Laboratories researchers designed a cooling system for supercomputer centers that is expected to save four to five million gallons of water annually in New Mexico...

Briefs: Aerospace
High Speed Idle Engine Control Mode

Innovators at NASA's Glenn Research Center have developed an engine control mode that improves an engine's responsiveness to throttle commands during emergency landing conditions. The high speed idle (HSI) control mode increases the speed of the engine's fan and core shafts, allowing faster response and...

Application Briefs: Green Design & Manufacturing
Helium reclamation system
VACCO Industries
South El Monte, CA
626-443-7121
www.VACCO.com

Recyling and purifying high-flow helium allows uninterrupted...

Briefs: Aerospace

Turbine film cooling flows typically are subject to jet detachment and reduced cooling effectiveness for high blowing rates. Current concepts to improve jet attachment involve impractical or overly complex hole designs...

Briefs: Mechanical & Fluid Systems
Process for Forming a High-Temperature Single Crystal Preloader

Friction has long been a thorny problem for sealing-device designers. Traditional sealing devices rely on a contacting relationship between surfaces and sealing elements to prevent fluid leakage, but in the case of moving elements, this contact produces friction that causes wearing...

Briefs: Test & Measurement

NASA’s Marshall Space Flight Center has developed a set of unique magnetostrictive (MS) technologies for utilization in pressure regulation and valve systems. By combining MS-based sensors with a...

Briefs: Medical
Medical Oxygen Concentrator for Microgravity Operation

Supplemental oxygen delivery systems are vital to provide a critical life support respiratory function. Whether they are used for patients suffering from lung diseases or other illnesses, or astronauts donning an oxygen mask during a toxic spill or fire on a spacecraft, lightweight and...

Articles: Automotive
Smart Coating for Corrosion Detection and Protection

Luz Marina Calle NASA Kennedy Space Center, FL

Researchers, at NASA Kennedy Space Center’s...

Briefs: Manufacturing & Prototyping

Manufacturing reliable, high-performing parts and components that have extended lifecycles is crucial for the pneumatics and hydraulics industry. From springs to fittings, the performance of each...

Briefs: Aerospace
Performing Launch Depressurization Test on Large Test Articles Using Two Vacuum Chambers in Tandem

Two vacuum chambers were used in tandem to perform a launch depressurization test. The test article was mounted in a 10-ft (≈3 m) Vertical Vacuum Chamber (Chamber 248-10). The 25-ft (≈7.6-m) Space Simulator (Chamber 150-25) was rough-pumped and...

Briefs: Sensors/Data Acquisition

Car air conditioners operate in all seasons to keep the cabin temperature cool in summer and warm in winter. In summer, for air conditioning systems without humidity...

Briefs: Medical

Today, medical devices are made using a variety of plastic materials and manufacturing processes. Advances in plastic processing make it possible to obtain virtually any shape, form, or function. In...

Briefs: Information Technology
GPU Lossless Hyperspectral Data Compression System

Hyperspectral imaging systems onboard aircraft or spacecraft can acquire large amounts of data, putting a strain on limited downlink and storage resources. Onboard data compression can mitigate this problem but may require a system capable of a high throughput. In order to achieve a high...

Briefs: Information Technology
Organizing Compression of Hyperspectral Imagery to Allow Efficient Parallel Decompression

A family of schemes has been devised for organizing the output of an algorithm for predictive data compression of hyperspectral imagery so as to allow efficient parallelization in both the compressor and decompressor. In these schemes, the compressor...

Briefs: Mechanical & Fluid Systems
Wells for In Situ Extraction of Volatiles from Regolith (WIEVR)

A document discusses WIEVRs, a means to extract water ice more efficiently than previous approaches. This water may exist in subsurface deposits on the Moon, in many NEOs (Near- Earth Objects), and on Mars. The WIEVR approach utilizes heat from the Sun to vaporize subsurface ice;...

Articles: Manufacturing & Prototyping
Top Ten Most Popular Entries

Visitors to the Create the Future Design Contest Web site were invited to vote on their favorite entries. Here are the top ten most popular entries, winners of a SpaceMouse Pro 3D mouse from 3Dconnexion.

Evacuated Tube Transport Technologies (ET3)™ Daryl Oster, ET3 Global Alliance

This global...

Articles: Automotive

Having your car’s air conditioner lose its cool on a hot day can make for an uncomfortable ride. A breakdown in thermal control in space is far more than a matter of comfort; on the...

Briefs: Electronics & Computers
Hardware Implementation of Lossless Adaptive Compression of Data From a Hyperspectral Imager

Efficient onboard data compression can reduce the data volume from hyperspectral imagers on NASA and DoD spacecraft in order to return as much imagery as possible through constrained downlink channels. Lossless compression is important for signature...

Briefs: Electronics & Computers
Fast and Adaptive Lossless Onboard Hyperspectral Data Compression System

Modern hyperspectral imaging systems are able to acquire far more data than can be downlinked from a spacecraft. Onboard data compression helps to alleviate this problem, but requires a system capable of power efficiency and high throughput. Software solutions have limited...

Briefs: Electronics & Computers
Enabling IP Header Compression in COTS Routers via Frame Relay on a Simplex Link

NASA is moving toward a network-centric communications architecture and, in particular, is building toward use of Internet Protocol (IP) in space. The use of IP is motivated by its ubiquitous application in many communications networks and in available commercial...

Articles: Robotics, Automation & Control

In this age of environmental consciousness, OEMs around the world are competing to build better, safer, and greener machines. In striving toward such lofty goals, many industries are rediscovering a fundamental...

Briefs: Imaging
Algorithm for Lossless Compression of Calibrated Hyperspectral Imagery

A two-stage predictive method was developed for lossless compression of calibrated hyperspectral imagery. The first prediction stage uses a conventional linear predictor intended to exploit spatial and/or spectral dependencies in the data. The compressor tabulates counts of...

Articles: Transportation

DOE has prepared a Multi-Year Research, Development, and Demonstration Plan to provide hydrogen as a viable fuel for transportation after 2020, and commissioned Concepts NREC (CN)...

Articles: Motion Control

Today’s pumps, valves, and flow meters are being designed with greater accuracy and flexibility to handle a wide range of fluids, chemicals, and other materials. Demands for more...

Briefs: Mechanical & Fluid Systems

Thermally actuated hydraulic pumps have been proposed for diverse applications in which direct electrical or mechanical actuation is undesirable and the relative slowness of thermal actuation can be...

Briefs: Software
Computational Simulation of a Water-Cooled Heat Pump

A Fortran-language computer program for simulating the operation of a water-cooled vapor-compression heat pump in any orientation with respect to gravity has been developed by modifying a prior general-purpose heat-pump design code used at Oak Ridge National Laboratory (ORNL). Although it is...

Briefs: Information Technology
Lossless, Multi-Spectral Data Compressor for Improved Compression for Pushbroom-Type Instruments

A low-complexity lossless algorithm for compression of multispectral data has been developed that takes into account pushbroom-type multispectral imagers' properties in order to make the file compression more effective. These types of imagers use a...

Webcasts

Upcoming Webinars: Automotive

The Art of EV Propulsion System Design

Upcoming Webinars: Automotive

Solutions for Automotive Interior Colors

Upcoming Webinars: Automotive

Latest Enhancements for ADAS Sensor Testing and Simulation

Upcoming Webinars: Automotive

Adhesives and the Future of Battery Designs

Upcoming Webinars: Manufacturing & Prototyping

Using High-Resolution X-ray Computed Tomography to Inspect...

Upcoming Webinars: Automotive

Digital Solutions to Design Vehicles for Noise and Vibration