January 2008

A passive porous treatment has been proposed as a means of suppressing noise generated by the airflow around the side edges of partial-span flaps on airplane wings when the flaps are...

Products: Electronics & Computers
System in Package Designs

System in Package (SiP) designs from Endicott Interconnect Technologies (Endicott, NY) bring multiple packages from a printed wiring board (PWB) into a SiP for improved electrical performance, and reduced PWB...

Briefs: Mechanical & Fluid Systems
Deflection-Compensating Beam for Use Inside a Cylinder

A design concept for a beam for a specific application permits variations and options for satisfying competing requirements to minimize certain deflections under load and to minimize the...

Products: Electronics & Computers
Networking System-on-Chip Coprocessors

Lantronix (Irvine, CA) has introduced the DeviceLinx™ XChip™ family of fully turnkey, networking coprocessor system-on-chip (SoC) solutions. The SoC family enables original equipment...

Briefs: Mechanical & Fluid Systems
Four-Point-Latching Microactuator

Figure 1 depicts an experimental inchworm- type linear microactuator. This microactuator is a successor to the one described in "MEMS-Based Piezoelectric/ Electrostatic Inchworm Actuator" (NPO- 30672), NASA...

Products: Electronics & Computers
Encrypted EEPROMs

Amtel® Corporation (San Jose, CA) offers the CryptoMemory® family of EEPROMs with a 64-bit embedded hardware encryption engine, four sets of non-readable 64-bit authentication keys, and four sets of non-readable...

When Spinal USA, a manufacturer and distributor of advanced surgical spinal products, designed a new series of spinal implants called vertebral body...

Products: Electronics & Computers
64-Bit Single Board Computer

MEN Micro Inc. (Boston, MA) has expanded its series of intercompatible CompactPCI/-Express single board computers (SBCs) with a new 64-bit board based on the Intel® Core™2 Duo Processor T7500 combined...

An improved thermal modulator has been invented for use in a variant of gas chromatography (GC). The variant in question — denoted as two-dimensional gas chromatography (2DGC) or GC-GC...

An experimental nuclear-spin gyroscope is based on an alkali-metal/noblegas co-magnetometer, which automatically cancels the effects of magnetic fields. Whereas the performances of...

A method is being developed for utilizing readings of an ion-mobility spectrometer (IMS) to estimate molecular masses of ions that have passed through the spectrometer. The method...

Briefs: Information Technology
Algorithm Optimally Orders Forward-Chaining Inference Rules

People typically develop knowledge bases in a somewhat ad hoc manner by incrementally adding rules with no specific organization. This often results in a very inefficient execution of those rules since they are so often order sensitive. This is relevant to tasks like Deep Space Network...

Briefs: Information Technology
Project Integration Architecture

The Project Integration Architecture (PIA) is a distributed, object- oriented, conceptual, software framework for the generation, organization, publication, integration, and consumption of all information involved in any complex technological process in a manner that is intelligible to both computers and humans....

Books & Reports: Physical Sciences
Multiple-Cone Sunshade for a Spaceborne Telescope

A document describes a sunshade assembly for the spaceborne telescope of the Terrestrial Planet Finder Coronagraph mission. During operation, the telescope is aimed at target stars in the semi-hemisphere away from the Earth's Sun. The observatory rotates about its pointing axis during a single...

Books & Reports: Electronics & Computers
High Power Amplifier and Power Supply

A document discusses the creation of a high-voltage power supply (HVPS) that is able to contain voltages up to –20 kV, keep electrical field strengths to below 200 V/mil (≈7.87 kV/mm), and can provide a 200- nanosecond rise/fall time focus modulator swinging between cathode potential of 16.3 kV and...

Books & Reports: Physical Sciences
Estimating Mixing Heights Using Microwave Temperature Profiler

A paper describes the Microwave Temperature Profiler (MTP) for making measurements of the planetary boundary layer thermal structure — data necessary for air quality forecasting as the Mixing Layer (ML) height determines the volume in which daytime pollution is primarily...

Assemblies containing curved piezoceramic fiber composite actuators have been invented as means of stretching optical fibers by amounts that depend on applied drive voltages....

Broad-area laser diodes are the most efficient coherent light sources and are widely used today. The extraordinary efficiency, modulation...

Application Briefs: Photonics/Optics
Design of a Field-Mapped Beam Homogenizer

Light beam homogenizer designs used for decades are largely based upon lenticular lens arrays that date back to the 1940s and 1950s. A more recent design is from the late 1980s that comprises a pair...

Briefs: Photonics/Optics
Optical Displacement Sensor for Sub-Hertz Applications

A document discusses a sensor made from off-the-shelf electro-optical photo-diodes and electronics that achieves 20 nm/(Hz)1/2 displacement sensitivity at 1 mHz. This innovation was created using a fiber-coupled laser diode (or Nd:YAG) through a collimator and an aperture as the...

Since their market introduction in 1995, fiber Bragg gratings (FBGs) [wherein “fiber” signifies optical fiber] have emerged as excellent means of measuring such parameters as strain and...

The use of piezoelectric devices has become widespread since Pierre and Jacques Curie discovered the piezoelectric effect in 1880. Examples of current applications of piezoelectric devices...

The figure schematically depicts two versions of an opto-electronic system, undergoing development at the time of reporting the information for this article, that is expected to be...

The figure depicts a breadboard version of an optical beam combiner that makes it possible to use the outputs of any or all of four multimode laser diodes to pump a non-planar ring...

Briefs: Photonics/Optics
Web-Enabled Optoelectronic Particle-Fallout Monitor

A Web-enabled optoelectronic particle-fallout monitor has been developed as a prototype of future such instruments that (l) would be installed in multiple locations for which assurance of cleanliness is required and (2) could be interrogated and controlled in nearly real time by multiple remote...

Products: Photonics/Optics
Photonics West Exhibitor Preview

View these and other new products on display by exhibitors at Photonics West, January 22-24, in San Jose, CA. Visit Photonics Tech Briefs at Booth 1437.Visit http://spie.org/x2584.xml for more...

This year, NASA celebrates its 50th anniversary, which will be observed on October 1. All year, NASA Tech Briefs will join in the celebration, highlighting technology innovations and epic moments...

CAD software has come a long way in terms of ease of use, interoperability, speed, and capabilities. But there is still a long way to go. We spoke to executives at leading CAD software companies to...

Remote Voltage Sensor
Quasar Federal Systems
San Diego, CA
858-228-3386
www.quasarusa.com

Electrostatic charges impact the...

RTAX-S field-programmable gate arrays (FPGAs) Actel
Mountain View, CA
650-318-4200
www.actel.com

Actel’s RTAX-S field-programmable gate arrays...

Products
Connex500™

Objet Geometries, Billerica, MA, has introduced the Connex500™ multimaterial 3D printer based on the company's PolyJet Matrix™ technology, which provides simultaneous jetting of multiple model materials. The system...

Techs for License
Extraction of Betulin and Betulinic Acid from Birch Bark

NaturNorth has created bioactive compounds with potential applications in pharmaceutical, agricultural, and biocidal applications. The compounds have potential applications against HIV, MRSA, herpes, in anticancer treatments, and in anti-inflammatory, liver protection, and skin protection...

Techs for License
Non-Bitter Peptide

In a two-step process of hydrolyzation utilizing fungal proteases, mild peptide is extracted in such a way that it is free of the bitter taste and aftertaste of similar products. Mild peptide may be mixed with protein drinks and other products to increase the effectiveness of the protein through its amino acid profile and its...

Tech Needs
Pharmaceutical Processing Technologies

A company seeks a range of new processing and preparation technologies for use in pharmaceutical preparation. Such technologies may enhance current chemistry processes such as finer milling that leads to faster in-process reactions. Technologies may be applicable to a variety of pharmaceuticals after...

Tech Needs
Microwavable Packaging That Produces Authentic Grilled Foods

This organization wants to create authentic grilled foods in a home microwave oven with typical microwave food preparation times and convenience. Authentic grilled foods combine a slightly charred taste with a less fatty, cleaner feel, and the appearance of grill marks seared by high...

Using NASA's Cosmic Background Explorer (COBE) satellite to measure microwaves and infrared light that originated with the formation of the universe, Dr. John C. Mather...

An induction charge detector with multiple sensing stages has been conceived for use in characterizing sprayed droplets, dust particles, large ionized molecules, and the like. Like...

Briefs: Physical Sciences
Generic Helicopter-Based Testbed for Surface Terrain Imaging Sensors

To be certain that a candidate sensor system will perform as expected during missions, we have developed a field test system and have executed test flights with a helicopter- mounted sensor platform over desert terrains, which simulate Lunar features. A key advantage to this...

An optimized geometry has been proposed for superconducting sensing coils that are used in conjunction with superconducting quantum interference devices (SQUIDs) in magnetic resonance...

Briefs: Electronics & Computers
Robot Electronics Architecture

An electronics architecture has been developed to enable the rapid construction and testing of prototypes of robotic systems. This architecture is designed to be a research vehicle of great stability, reliability, and versatility. A system according to this architecture can easily be reconfigured (including...

Briefs: Physical Sciences
Sensing a Changing Chemical Mixture Using an Electronic Nose

A method of using an electronic nose to detect an airborne mixture of known chemical compounds and measure the temporally varying concentrations of the individual compounds is undergoing development. In a typical intended application, the method would be used to monitor the air in an...

A class of inertial- sensor systems with drift compensation has been invented for use in measuring the orientations of human heads (and perhaps other, similarly sized objects). These...

A proposed microstrip Yagi antenna would operate at a frequency of 8.4 GHz (which is in the X band) and would feature a mechanically simpler, more elegant design, relative to a prior...

Articles: Electronics & Computers
Z-RAM

In the electronics industry today there are two commonly used high-speed memory types: static RAM (SRAM) and dynamic RAM (DRAM). Traditionally, SRAM embedded memory has been the designer's choice for fast memory, but since a typical...

Articles: Electronics & Computers
Designing Configurable Air Transport Racks

High-powered embedded computing equipment utilizing the Air Transport Rack (ATR) form factor is playing an ever-larger role in extreme, mission-critical applications in air, land, and sea...

Tunable microwave devices based on metal terminals connected by thin ferroelectric films (see Figure 1) can be made to perform better by patterning the films to include suitably...

Articles: Electronics & Computers
Designing COTS Computers for Harsh Environments

The need for commercial off the shelf (COTS) single board computer (SBC) products continues to grow as higher processing, smaller footprints and lower power requirements become more critical....

A free-space optical beam combiner now undergoing development makes it possible to use the outputs of multiple multimode laser diodes to pump a neodymium-doped yttrium aluminum...

Application Briefs: Electronics & Computers
Performing Failure Mode and Effect Analysis

Failure Mode and Effect Analysis (FMEA) is a methodology for analyzing potential problems early in the product development cycle where it is easier to take action to overcome potential issues,...

Briefs: Semiconductors & ICs
Efficient G⁴FET-Based Logic Circuits

A total of 81 optimal logic circuits based on four-gate field-effect transistors (G4FETs) have been designed to implement all Boolean functions of up to three variables. The purpose of this...

Products: Electronics & Computers
Single Board Computer

VersaLogic Corp. (Eugene, OR) offers the Sidewinder, a single board computer (SBC) designed to complement their existing EBX product line. The Sidewinder is a reliable fanless design featuring a robust array of onboard...

Briefs: Manufacturing & Prototyping
Patterning of Indium Tin Oxide Films

A relatively rapid, economical process has been devised for patterning a thin film of indium tin oxide (ITO) that has been deposited on a polyester film. ITO is a transparent, electrically conductive...

Products: Electronics & Computers
Boundary Scan Test System

ASSET InterTech (Richardson, TX) has expanded its ScanWorks® system by adding signal integrity analysis applications that support Intel's next-generation embedded instrumentation technology, Intel® IBIST...

Briefs: Manufacturing & Prototyping
Gimballed Shoulders for Friction Stir Welding

In a proposed improvement of tooling for friction stir welding, gimballed shoulders would supplant shoulders that, heretofore, have been fixedly aligned with pins. The proposal is especially...

Products: Electronics & Computers
13 GHz Test System

Lecroy® Corporation (Chestnut Ridge, NY) has introduced a 13 GHz test system comprised of the SDA 13000 Serial Data Analyzer, the D13000PS Active Differential Probe, and a suite of debug and analysis tools. The new...

Pellets made of a high-surface-area composite of silica and titania have shown promise as means of removing elemental mercury from flue gases. With further technical development...

Products: Electronics & Computers
Avionics Network

ALT Software, DiSTI, Green Hills Software, and RTI (Santa Clara, CA) have combined to introduce a robust solution for mission-critical data distribution and display. The real-time integrated avionics network is for remotely...

Briefs: Materials
Lightweight Tanks for Storing Liquefied Natural Gas

Single-walled, jacketed aluminum tanks have been conceived for storing liquefied natural gas (LNG) in LNG-fueled motor vehicles. Heretofore, double- wall steel tanks with vacuum between the inner and outer walls have been used for storing LNG. In comparison with the vacuum-insulated steel...

Products: Electronics & Computers
32 GB 2.5-inch SATA Solid State Drive

The new 32 GB SATA Solid State Disk (SSD) Drive from Ridata (Diamond Bar, CA) is almost twice as fast as a conventional hard disk drive. The data transfer rates are 60MB/s for maximum sequential read and...

Briefs: Materials
Hybrid Wound Filaments for Greater Resistance to Impacts

The immediately preceding article includes an example in which a composite overwrap on a pressure vessel contains wound filaments made of a hybrid of high-strength carbon fibers and poly(phenylene benzobisoxazole) [PBO] fibers. This hybrid material is chosen in an effort to increase the...

Products: Electronics & Computers
VME64x PowerPC Single Board Computer

Cornet Technology Inc. (Springfield, VA) has announced its latest VME64x PowerPC single board computer called the Celero CVME-7448ST. This board incorporates a newer hostbridge controller (Tundra Tsi109)...

Briefs: Materials
Making High-Tensile-Strength Amalgam Components

Structural components made of amalgams can be made to have tensile strengths much greater than previously known to be possible. Amalgams, perhaps best known for their use in dental fillings, have several useful attributes, including room- temperature fabrication, corrosion resistance, dimensional...

Products: Electronics & Computers
VMEbus Single Board Computer

Dynatem (Mission Viejo, CA) offers the Intel® Core-Duo (Yonah) processor-based DPD VMEbus Single Board Computer (SBC). The DPD is a single-slot VMEbus (and VME64) compatible platform and requires only 5V from...

A simple, inexpensive method for bonding solid objects exploits hydroxidecatalyzed hydration and dehydration to form silicatelike networks in thin surface and interfacial layers...

Products: Electronics & Computers
Center Probe Test Sockets

The new line of high-frequency center probe test sockets from Aries Electronics (Frenchtown, NJ) can be used with devices requiring pitches as low as 0.40mm. The sockets are used in CSP, MicroBGA, DSP, LGA, SRAM,...

Briefs: Mechanical & Fluid Systems
Balanced Flow Meters Without Moving Parts

Balanced flow meters are recent additions to an established class of simple, rugged flow meters that contain no moving parts in contact with flow and are based on measurement of pressure drops across...

Products: Electronics & Computers
1000-Watt Power Supply

Lambda (San Diego, CA) has introduced the HWS1000 series of 1000-watt power supplies. The single-output power supplies are ideal for powering process control equipment, ATE, and factory automation systems. The power...

Blog
Open Source Software

Anyone who has worked with programs such as Linux, Firefox, and Open Office is familiar with the concept of open-source software. Essentially, open-source software distributes programs and all of the underlying code for free. It's an interesting concept that has become quite popular in the engineering world but, until now,...

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Techs of the Week

A GPS receiving technology can take any signals from both GPS and GLONASS, besides European Satellites such as WAAS and EGNOS. Called ARGO-16, the GPS technology has 16 universal channels in ARGO-16 that can receive and process either GPS or GLONASS satellite signals. It produces high performance with satellite coverage for...

Blog
Disease-Killing Nanotubes

Researchers at Rensselaer Polytechnic Institute have developed a method to detect and destroy proteins, including dangerous ones such as anthrax, using light. The process exposes the proteins to invisible, near-infrared light, rendering them harmless. The technique lends itself to creating new antibacterial and...

Blog
Reverse Combustion

Using concentrated solar energy, researchers at Sandia National Laboratories are building a prototype device that can chemically re-energize carbon dioxide into carbon monoxide. The carbon monoxide can then be used to produce hydrogen or help synthesize a liquid combustible fuel such as methanol, gasoline, diesel, or jet...

Blog
Modeling Biosensors

Purdue University researchers have developed a modeling technique to study and design miniature biosensors, which could help industry perfect lab-on-a-chip technology for uses ranging from medical diagnostics to environmental monitoring. Biosensors represent a class of portable sensors designed to

capture and detect...

Blog
Techs of the Week

An embedded passive integration technology allows the integration of passive components into the printed circuit board (PCB). Applied for power converters, these embedded passive integrated circuits reduce size and thus improve power density. It comprises several layers of passive functions to achieve a highly automated,...

Blog
Advanced Nanolasers

Memory capacity has undergone impressive advances in recent years, but could take a quantum leap thanks to advanced nanolasers now under development in laboratories such as at the University of California in Riverside.

Led by associate professor of engineering Sakhrat Khizroev, the research team is exploring using tiny...

Blog
Cyanide Antidote

Researchers at the University of Minnesota Center for Drug Design and Minneapolis VA Medical Center have discovered a fast-acting antidote to cyanide poisoning that can potentially save the lives of firefighters, industrial workers, and others exposed to the chemical.

Developed by Steven Patterson, principal investigator...

Blog
Swollen Solution

Magnetic therapy is an alternative method for treating multiple conditions. Thomas Skalak, a biomedical engineering professor at the University of Virginia, has been researching its effectiveness. Skalak's lab focuses on microcirculation research - the study of blood flow through the body's tiniest blood vessels. Skalak set out...

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Tech Needs of the Week

A company is looking for technologies to prevent garbage bags from falling into garbage cans during usage. The technology should be economical and appropriate for a low-cost, high-volume consumer product. Possible approaches include adhesives that do not leave behind residue, electrostatic approaches, frames at the top of...

Blog
Gas Sensor

An international team of researchers, led by Professor Akintundle Ibitayo Akiniwande, are developing a tiny sensor that could be used to detect minute quantities of hazardous gases, including toxic industrial chemicals and chemical warfare agents, more quickly than current devices. A key factor in the team's success is their ability...

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Technology Business Briefs

US Patents for Sale

High-Speed Technique for Noise Reduction, Compression & Pattern Recognition. Three issued US patents for sale.

Click here for more info.

Digital Video Encoding and Transmission System. Two issued US patents for sale. Click here for more info.

Blog
Organic Transistors

Researchers at the Georgia Institute of Technology have successfully fabricated high- performance field effect transistors using thin films of Carbon 60, also known as fullerene. The new devices - which have electron- mobility values higher than amorphous silicon, low threshold voltages, large on-off ratios, and high...

Blog
Techs of the Week

An improved ASIC (Application Specific Integrated Circuit) for industrial proximity sensor applications provides ease of programmability, embedded trimming capability, and dual slope temperature compensation. This ASIC design enables inductive proximity sensor/switches to be easily programmed after full assembly in production...

Blog
Current Attractions

Objet Geometries, Billerica, MA, has introduced the Connex500™ multi-material 3D printer based on the company's PolyJet Matrix™ technology, which provides simultaneous jetting of multiple model materials. The system, which was named NASA Tech Briefs' Product of the Month for January, enables the printing of parts and...

Blog
Electric Motor Drive Magnets

A permanent magnet alloy being developed by scientists at the U.S. Department of Energy's Laboratory in Ames, Iowa, promises high- temperature performance for next-generation drive motors for electric vehicles. The alloy retains much of its magnetic strength at 200°C to help make electric drive motors more...

Blog
Fragile X Syndrome

Researchers at University of Texas Southwestern Medical Center have made progress in unlocking the secrets behind the Fragile X syndrome, the most common cause of inherited mental retardation and the most common genetic cause of autism.

"I think we've discovered a core mechanism underlying Fragile X syndrome," said Dr....

Blog
Current Attractions

Scientists remain in an ongoing quest to validate the Big Bang theory tracing the early history of the universe. The NASA Cosmic Background Explorer (COBE) satellite was designed to study radiation patterns from the first few moments after the universe was formed, in an effort to unravel the mystery of the Big Bang.

Blog
Touching the Cosmos

NASA introduced a new book, "Touch the Invisible Sky," at a ceremony at the National Federation of the Blind. Images of nebulae, stars, and galaxies from the Hubble Space Telescope, Chandra X-ray Observatory, Spitzer Space Telescope, and ground-based telescopes are brought to the fingertips of the blind. Each image is...

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Tech Needs of the Week

An organization seeks a rapid, inexpensive, and reliable test that can detect even small levels of acrylamide in foods. Acrylamide is a known carcinogen that appears naturally all through nature. It is also found in larger concentrations when any food is cooked and carbonized. The solution should be cost-effective to use...

Blog
Current Attractions

Each month, NTB highlights tech briefs related to a particular area of technology in a special section known as Technology Focus. Here's an Insider look at the January focus on Sensors.

Blog
Mapping Tool

Tracking the location of resources such as hospitals, fire stations, transportation equipment, and water during an emergency situation can be life-saving. The Geographic Tool for Visualization and Collaboration (GTVC) was initially developed for military applications, and has recently been modified by the Georgia Tech Research...

Blog
Silicon Nanowires

Energy lost as heat during the production of electricity could be harnessed through silicon nanowires synthesized via a technique developed at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley. Scientists believe the technology could produce massive savings on...

Blog
Techs of the Week

A modular direct methanol fuel cell (DMFC) cartridge and stack design offers flexible assembly, efficiency improvements, and higher performance in methanol fuel cell assemblies. Conductive polymer micro DMFC plates with different flow field designs were evaluated to determine their performance efficiencies. Higher power...

Blog
Carbon Nanopipettes

Engineers and physicians at the University of Pennsylvania have developed a carbon nanopipette thousands of times thinner than a human hair that measures electric current and delivers fluids into cells. The tiny carbon-based tool can probe cells with minimal intrusion and injects fluids without damaging or inhibiting cell...

Blog
Optical Fiber

Scientists from the Centre for Photonics and Photonic Materials in the Department of Physics at the University of Bath in England have discovered a method to cut the production cycle for hollow-core optical fibers from a week to a single day. Initial tests also show that the new optical fiber outperforms other fibers, making it a...

Blog
Taming Ebola

The Ebola virus causes hemorrhagic fever and during outbreaks kills 50 - 90 percent of its human victims. Due to its virulent nature, and lack of vaccines or treatments, scientists studying the agent have had to work under stringent biocontainment protocols, limiting research to a few highly specialized labs and hampering the...

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Tech Needs of the Week

An organization seeks to replace a portion of the starch currently used in its snack foods with protein. While proteins provide the same caloric load as carbohydrates, they are metabolized much more slowly. One potential difficulty is the protein's reaction to heat, which is used to bake or fry many foods. Heat can cause...

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NASA Briefs

The John H. Glenn Research Center has developed a process and benchtop-scale apparatus to detect proteins associated with specific microbes in water. Possible applications include testing of blood and other bodily fluids in medical laboratories, and testing for microbial contamination of liquids. A sample can be prepared and analyzed...

Blog
Mighty Mouse

Using embryonic stem cells from mice, University of Texas Southwestern Medical Center researchers have prompted the growth of healthy, functioning muscle cells in mice afflicted with a human model of muscular dystrophy. This is the first time transplanted embryonic stem cells have been shown to restore function to defective muscles...

Blog
Computers and Cell Division

Computational biologists at Virginia Tech have mathematically modeled the process that regulates cell division in a common bacterium. The model was developed to confirm hypotheses, provide new insights, and identify gaps in the scientists' understanding of the molecular machinery that governs replication of DNA and...

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Techs of the Week

A toolkit facilitates quick development of Honeywell Communications Interface (HCI) and OPC-compliant servers. The kit includes a time-out indicator (TOI) feature to overcome situations wherein real-time process control systems become suspended indefinitely or for long time periods. An intermediary object between the client and...

Blog
Simulating Heat Pump Performance

Air-source heat pumps typically deliver 1 1/2 to three times more heating energy to a home than the electric energy they consume. National Institute for Standards and Technology (NIST) researchers are working to improve the performance of air-source heat pumps even further by providing engineers with...

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