Sentences with phrase «energy use of devices»

Eric Paulos at Carnegie Mellon University in Pittsburgh, Pennsylvania, and colleagues report in a new paper how, as part of a study of domestic energy consumption, they gave 12 US households gadgets called Kill A Watts that reveal the energy use of devices.

The system is made up of a postage - stamp - sized sensor that is placed on the incoming power line to a person's home and software that analyzes the spikes and patterns in voltage to identify and monitor the energy use of each device.

Not exact matches

At Battelle, Koper is studying the use of nanomaterials in membranes for water desalination and treatment; supercapacitors (energy - storage devices that provide higher power densities than batteries); and bio-based (rather than petroleum - based) additives used for hydraulic fracturing, or fracking, to retrieve natural gas.

Programming when electric car chargers start charging and how home devices make use of energy from solar panels versus the grid are two examples he mentioned.

Beacons are inexpensive pieces of hardware that attach to a wall or counter and use low - energy Bluetooth connections to transmit messages and prompts to personal mobile devices.

At the event in San Francisco last week, Hosain Rahman, chief executive of Jawbone, the maker of the Up, a wrist device that tracks people's energy and sleep, said that «a decade from now we won't be able to imagine life without the wearables that we use to access information, unlock our doors, pay for goods and most importantly track our health.»

Lithium - sulfur batteries have recently become one of the hottest topics in the field of energy storage devices due to their high energy density — which is about four times higher than that of lithium - ion batteries currently used in mobile devices.

They're similar to batteries, in that they electrostatically hold and release energy, but in our technology — mobile devices, laptops, electric cars — they tend to serve as a power backup because they can disburse their stored energy in a quick spurt, unlike batteries that do so over long period of use.

Among other adjustments that could help double fuel economy are turbocharging with smaller, more efficient engines that produce the same level of power; advanced heat management and cooling systems, which reuse the heat produced in the engine for energy; weight reduction, including broader use of high - strength steel that is already in some cars today; better aerodynamics; more efficient air conditioners, transmissions and lighting devices (including headlights); and increased electrification leading to full hybridization with electric motor and regenerative breaking — all of which currently exist.

«We calculated how much energy is used over the full lifecycle of the battery — from the mining of raw materials to the installation of the finished device,» Barnhart said.

Most existing thermoelectric devices are based on rare, expensive and unstable materials such as bismuth telluride, making them unsuitable for widespread use in energy generation — but Peidong Yang «s team at the University of California, Berkeley, have found a cheap alternative in silicon.

Then they applied the carbon to the surface of electrode materials used in supercapacitors, devices that store and deliver energy more quickly and more powerfully than a typical battery.

The head of business development at Enervee, a California company that calculates and scores the energy efficiency of electronic and home appliance products, Katzman said he uses the CARMA utility data to help calculate the costs of running certain devices.

The work, which appears in the November 27, 2014, edition of Science Express, points to new avenues for producing single - site supported gold catalysts that could produce high - grade hydrogen for cleaner energy use in fuel - cell powered devices, including vehicles.

«Using a liquid droplet is a clever way to do it,» says Zhong Lin Wang, a pioneer of energy - harvesting devices at the Georgia Institute of Technology in Atlanta.

Its energy - using devices — computers, fluorescent lights, printers, and (of course) the fridge and coffeemaker — allow us to do our work.

Cola believes the rectennas could be useful for powering internet of things devices, especially if they can be used to produce electricity from scavenged thermal energy.

It's more efficient than previous devices, the researchers say, because its two cells absorb more light than single - layer solar devices, because it uses light from a wider portion of the solar spectrum, and because it incorporates a layer of novel materials between the two cells to reduce energy loss.

During a multiyear project funded by the Department of Energy's Water Power Technologies Office, engineers from Sandia's Water Power program are using a combination of modeling and experimental testing to refine how a wave energy converter moves and responds in the ocean to capture wave energy while also considering how to improve the resiliency of the device in a harsh ocean enviroEnergy's Water Power Technologies Office, engineers from Sandia's Water Power program are using a combination of modeling and experimental testing to refine how a wave energy converter moves and responds in the ocean to capture wave energy while also considering how to improve the resiliency of the device in a harsh ocean enviroenergy converter moves and responds in the ocean to capture wave energy while also considering how to improve the resiliency of the device in a harsh ocean enviroenergy while also considering how to improve the resiliency of the device in a harsh ocean environment.

When they began to search for ways to fund the start - up, they came across an SBIR (Small Business Innovation Research) announcement from the U.S. Department of Energy, which was looking for methods to detect environmental pathogens using portable devices.

By using his model, «you could tune the device in certain ways to minimize the energy consumption,» which could actually make the prosthetic feel more «natural» and improve the user's quality of life.

By using the new formula, which relies upon newly developed measurements for the figure of merit and power factor of a material — called the engineering figure of merit, or (ZT) eng, and engineering power factor, or (PF) eng — scientists will be able to determine whether devices based on a material would generate energy efficiently enough to be worth pursuing, said Zhifeng Ren, principal investigator at the Texas Center for Superconductivity at UH (TcSUH).

Death was caused by «agitated state, stress and use of a conducted energy device», according to the medical examiner.

While as a proof - of - concept the research group built a more energy - efficient incandescent light bulb, the same approach could also be used to improve the performance of other hot thermal emitters, including thermo - photovoltaic devices.

Rechargeable lithium ion batteries are small and light, yet can store copious amounts of energy, making them ideal for use in everyday electronic devices such as iPods and laptops.

The metal - coated microbe can thus be used to build energy - storage devices with a power density much higher than that of traditional batteries, says Paula Hammond, a self - assembly expert who helped develop the technique.

By 2010, Verdant's hope is to increase its turbine farm in New York City to 30 devices producing more than a megawatt of energy (800 households use about one megawatt).

Organic photovoltaic cells — a type of solar cell that uses polymeric materials to capture sunlight — show tremendous promise as energy conversion devices, thanks to key attributes such as flexibility and low - cost production.

If the spermlike motor works, it could someday use the body's own energy source — glucose — to do such things as run super-tiny medical devices designed to release anticancer drugs or trigger the breakup of potentially deadly clots.

Using the electron's spin, rather than its charge, may allow for devices that consume much less energy, says Stuart Parkin, an IBM Fellow and manager of Almaden's magnetoelectronics group.

A team of Stanford engineers has built a basic computer using carbon nanotubes, a semiconductor material that has the potential to launch a new generation of electronic devices that run faster, while using less energy, than those made from silicon chips

Devices to harvest ambient mechanical energy to convert to electricity are widely used to power wearable electronics, biomedical devices and the so - called Internet of Things (IoT)-- everyday objects that wirelessly connect to the internet.

If researchers can scale up this invention into a working device, it could generate up to a glass of fresh water per minute using about the same energy as a table lamp does.

Just like its insect role model, the robot uses four legs to propel its leap from either a solid surface or from water — but it does so using the energy stored in a spring - loaded device that mimics the action of a flea's leg when it jumps.

DARPA and the U.S. Army funded development of a heel - strike generator, a portable energy source that soldiers and others in the field could use to power electronic devices in place of batteries.

Spintronic devices promise to solve major problems in today's electronic computers, in that the computers use massive amounts of electricity and generate heat that requires expending even more energy for cooling.

Halas, Rice's Stanley C. Moore Professor of Electrical and Computer Engineering and professor of chemistry, bioengineering, physics and astronomy, and materials science and nanoengineering, said hot electrons are particularly interesting for solar - energy applications because they can be used to create devices that produce direct current or to drive chemical reactions on otherwise inert metal surfaces.

But now, researchers have taken a more sizable jump with solar panels, creating a hybrid device that uses a combination of catalysts and microbes to convert 10 % of the captured solar energy into liquid fuels and other commodity chemicals.

That heat is a byproduct of the microprocessors in your device using electric current to power computer processing functions — and it is actually wasted energy.

The two new devices — a modulator and a tunable filter — are as energy - efficient as some of the best devices around, the researchers say, and were built using a standard IBM advanced Complementary Metal - Oxide Semiconductor (CMOS) process — the same chip - making process used to build many commercially available chips, some of which are found in Sony's Playstation 3 and also in Watson, the supercomputer that won Jeopardy! in 2011.

The use of directional transmission between the base station and a mobile device reduces signal interference, and that might account for the reduction in energy use we're seeing.

Tracking devices reveal the path of a particle; calorimeters stop, absorb and measure a particle's energy; and particle - identification detectors use a range of techniques to pin down a particle's identity.

Nanotubes are stronger than steel and smaller than any element of silicon - based electronics — the ubiquitous component of today's electrical devices — and have better conductivity, which means they can potentially process information faster while using less energy.

One is in a new type of computer memory device known as resistive switching memory, which provides fast switching speeds using very little energy.

He has pioneered the use of nanomaterials in energy storage devices and has created numerous breakthrough materials - based solutions that dramatically improve battery capacity and cycle life, including nanostructured silicon anodes, sulfur cathodes, and stable lithium metal anodes.

He has extended DGU to a wide range of nanomaterials and used these purified materials to create novel electronic, plasmonic and energy storage devices.

Using computer simulations, she's uncovering the physics behind a method she hopes will simplify the design of these devices, as well as reduce their size and cost, bringing us closer to creating a limitless supply of clean, renewable energy — the holy grail of energy research.

Use of this material drastically reduces cost, timeline and the organisational complexity required to build fusion energy devices, the researchers claim.

«By continuing to explore how best to use elliptical devices and other energy expenditure strategies across diverse settings, it may ultimately be possible to reach enough people to alter rates of chronic diseases associated with inactive lifestyles,» Rovniak said.

PPPL has successfully tested a Laboratory - designed device to be used to diminish the size of instabilities known as «edge localized modes (ELMs)» on the DIII — D tokamak that General Atomics operates for the U.S. Department of Energy in San Diego.