Energy & Green Tech
Oak Ridge National Laboratory scientists have developed a crucial component for a new kind of low-cost stationary battery system utilizing common materials and designed for grid-scale electricity storage.
Jul 25, 2018
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56
Energy & Green Tech
A new combination of materials developed by Stanford researchers may aid in developing a rechargeable battery able to store the large amounts of renewable power created through wind or solar sources. With further development, ...
Jul 19, 2018
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273
Energy & Green Tech
A type of battery first invented nearly five decades ago could catapult to the forefront of energy storage technologies, thanks to a new finding by researchers at MIT and other institutions. The battery, based on electrodes ...
Jan 22, 2018
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611
Engineering
A group led by researchers at Northeastern University in the U.S. has developed a new kind of antenna that is much smaller than conventional antennas. In their paper published in the journal Nature Communications, the team ...
Aug 23, 2017 report
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470
Energy & Green Tech
A federally funded research effort to revolutionize water treatment has yielded an off-grid technology that uses energy from sunlight alone to turn salt water into fresh drinking water. The desalination system, which uses ...
Jun 19, 2017
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1078
Energy & Green Tech
The pathway to zero-emission vehicles has taken two forks, one toward battery electric cars like the Tesla and the other toward fuel-cell-powered automobiles like the Toyota Mirai.
Dec 12, 2016
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10
Energy & Green Tech
(Tech Xplore)—A team of researchers at Ghent University has made headlines by announcing that they have designed and created a solar-powered device that is capable of separating out water and fertilizer from human urine, ...
Jul 28, 2016 report
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54
Robotics
In interacting with humans, robots must first and foremost be safe. If a household robot, for example, encounters a human, it should not continue its movements regardless, but rather give way in case of doubt. Researchers ...
May 16, 2016
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315
Engineering
A drug -sniffing car kitted out with advanced sensors that can pick up suspicious chemicals has made the news rounds this month; it can smell drugs a quarter of a mile away, said Discovery News.
May 10, 2016 weblog
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26
Hi Tech & Innovation
Biometric authentication has frequently made the news—without even knowing any formal definition, we are used to the headlines and the stories about how fingers or eyes can be the keys to gain access to sites and doors, ...
Mar 09, 2016 weblog
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5
A membrane is a layer of material which serves as a selective barrier between two phases and remains impermeable to specific particles, molecules, or substances when exposed to the action of a driving force. Some components are allowed passage by the membrane into a permeate stream, whereas others are retained by it and accumulate in the retentate stream.
Membranes can be of various thickness, with homogeneous or heterogeneous structure. Membrane can also be classified according to their pore diameter. According to IUPAC, there are three different types of pore size classifications: microporous (dp < 2nm), mesoporous (2nm < dp < 50nm) and macroporous (dp > 50nm). Membranes can be neutral or charged, and particles transport can be active or passive. The latter can be facilitated by pressure, concentration, chemical or electrical gradients of the membrane process. Membranes can be generally classified into three groups: inorganic, polymeric or biological membranes. These three types of membranes differ significantly in their structure and functionality.
This text uses material from Wikipedia, licensed under CC BY-SA
