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Archive for the ‘energy’ category: Page 297

May 4, 2018

Membrane can better treat wastewater, recover valuable resources

Posted by in categories: energy, engineering, sustainability

A membrane made up of block polymers has the customizable and uniform pore sizes needed for filtering or recovering particular substances from wastewater, researchers say in a review published in npj Clean Water.

Some parts of the world have an increasing need to generate drinkable water from wastewater due to excessive chemical discharge into typical water sources or lack of rainfall. Researchers from Purdue University and the University of Notre Dame believe that a block membrane could not only improve desalination and filtration of wastewater, but could also be used in forthcoming hybrid water treatment processes that simultaneously recover substances for other purposes.

“Current nanofiltration membranes used for desalination tend to separate things based on size and electrostatic interactions, but not chemical identity,” said Bryan Boudouris, Purdue’s Robert and Sally Weist Associate Professor of Chemical Engineering. “If we tailor the right membrane to the right application to begin with, then less energy is used.”

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Apr 30, 2018

New materials for sustainable, low-cost batteries

Posted by in categories: energy, sustainability

A new conductor material and a new electrode material could pave the way for inexpensive batteries and therefore the large-scale storage of renewable energy.

The energy transition depends on technologies that allow the inexpensive temporary storage of electricity from renewable sources. A promising new candidate is aluminium batteries, which are made from cheap and abundant raw .

Scientists from ETH Zurich and Empa, led by Maksym Kovalenko, Professor of Functional Inorganic Materials, are among those involved in researching and developing batteries of this kind. The researchers have now identified two new materials that could bring about key advances in the development of aluminium batteries. The first is a corrosion-resistant material for the conductive parts of the battery; the second is a novel material for the battery’s positive pole that can be adapted to a wide range of technical requirements.

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Apr 29, 2018

How Europe’s ‘energy citizens’ are leading the way to 100% renewable power

Posted by in categories: energy, sustainability

Germany and Denmark are setting the standard.


Europe already has the technology to create a 100% renewable energy system, but communities will need to join forces to achieve this ambitious goal.

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Apr 23, 2018

America Just Can’t Match China’s Exploding Supercomputing Power

Posted by in categories: energy, government, supercomputing

1. blame the American public that lost serious interest in science in the 1990’s, And 2. the US government who’s only real interest now is war, and how to spend money on war.


If you want to crunch the world’s biggest problems, head east. According to a newly published ranking, not only is China home to the world’s two fastest supercomputers, it also has 202 of the world’s fastest 500 such devices—more than any other nation. Meanwhile, America’s fastest device limps into fifth place in the charts, and the nation occupies just 144 of the top 500 slots, making it second according to that metric.

The world’s fastest supercomputer is still TaihuLight, housed at the National Supercomputing Center in Wuxi, China, and pictured above. Capable of performing 93 quadrillion calculations per second, it’s almost three times faster than the second-place Tianhe-2. The Department of Energy’s fifth-placed Titan supercomputer, housed at Oak Ridge National Laboratory, performs 17.6 quadrillion calculations per second—making it less than a fifth as fast as TaihuLight.

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Apr 23, 2018

What threats face America’s electrical grid?

Posted by in category: energy

Apr. 22, 2018 — 14:27 — What would happen if America’s electrical grid goes down and what can be done to protect it? EMP task force director Peter Pry shares insight on ‘Life, Liberty & Levin.’

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Apr 16, 2018

Scientists decipher the magma bodies under Yellowstone

Posted by in categories: energy, supercomputing

Using supercomputer modeling, University of Oregon scientists have unveiled a new explanation for the geology underlying recent seismic imaging of magma bodies below Yellowstone National Park.

Yellowstone, a supervolcano famous for explosive eruptions, large calderas and extensive lava flows, has for years attracted the attention of scientists trying to understand the location and size of below it. The last caldera forming eruption occurred 630,000 years ago; the last large volume of lava surfaced 70,000 years ago.

Crust below the park is heated and softened by continuous infusions of magma that rise from an anomaly called a , similar to the source of the magma at Hawaii’s Kilauea volcano. Huge amounts of water that fuel the dramatic geysers and hot springs at Yellowstone cool the crust and prevent it from becoming too hot.

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Apr 12, 2018

World’s first electrified road for charging vehicles opens in Sweden

Posted by in categories: energy, sustainability, transportation

Stretch of road outside Stockholm transfers energy from two tracks of rail in the road, recharging the batteries of electric cars and trucks.

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Apr 12, 2018

ARA Develops Lightweight Laser Weapon System

Posted by in categories: drones, energy, military, space

ALBUQUERQUE, NM – Applied Research Associates, Inc. (ARA) is developing a compact, completely self-contained directed-energy weapon that is the first of its size and specifications, making it a standout from existing systems.

The Silent Saber is high power, 1.5 kilowatt fiber laser packaged in a backpack with power supplies and a unique thermal control system. A telescope with multiple potential mounting configurations can be mounted to existing Picatinny rails of a soldier’s rifle, and a laser is connected to the telescope by a fiber cable.

“This tool provides options to the warfighter to support explosive ordnance disposal, counter infrastructure and counter drone missions,” said Principal Engineer Joseph Paranto, ARA’s Director of Directed Energy Systems.

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Apr 11, 2018

Sensors Lead A New Age Of Man-Machine Collaboration

Posted by in categories: energy, health

“We shape our tools”, the old maxim goes, “and thereafter our tools shape us.” But what if both man and tools could shape and guide each other — as equals?

That’s the dream of the Senior Director of Advanced Technology at InvenSense, a TDK Group Company, Dr. Peter G. Hartwell, who believes we are heading into a profound new age of man-machine collaboration, led by breakthroughs in sensor technology. “Some problems simply can’t be solved using human senses or machine capabilities alone; we need a fusion of the two,” says Hartwell.

The problems which Hartwell targets are at the very core of a life well lived: customized health care, more energy-efficient infrastructure, productive workplaces, safer cities, and improved environmental monitoring.

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Apr 11, 2018

Robust and inexpensive catalysts for hydrogen production

Posted by in categories: energy, materials

Researchers from the Ruhr University Bochum (RUB) and the University of Warwick were able to observe the smallest details of hydrogen production with the synthetic mineral pentlandite. This makes it possible to develop strategies for the design of robust and cost-effective catalysts for hydrogen production. The working groups of Prof. Wolfgang Schuhmann and Dr. Ulf-Peter Apfel from the RUB and the team headed by Prof. Patrick R. Unwin from the University of Warwick published their results in the journal Angewandte Chemie.

Hydrogen gas is considered a possible future source of energy and can be produced from water using platinum catalysts and electricity. However, researchers seek alternative catalysts made of cheaper and more readily available with equally high efficiency. There are a number of materials that, like platinum, are able to catalyse the reaction of water into hydrogen. “These include metal chalcogenides such as the mineral pentlandite, which is just as efficient as platinum and is also significantly more stable toward poisons such as sulphur,” explains Ulf-Peter Apfel. Pentlandite consists of iron, nickel and sulphur. Its structure is similar to that of the catalytic centres of hydrogen-producing enzymes found in a variety of sources, including green algae.

In the current study, the researchers investigated rates of artificially prepared crystalline surfaces of the mineral pentlandite in a drop of liquid with a diameter of a few hundred nanometres. They used scanning electrochemical cell microscopy for this purpose.

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