Energy & Green Tech
Hydrogen as an energy carrier can help us move away from fossil fuels, but only if it is created efficiently. One way to improve efficiency is to use waste heat that's left over from other industrial processes.
Nov 7, 2019
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16
Machine learning & AI
Next-generation sequencing technology has ushered in a new era in medicine, making it easier to identify a sequence of nucleotides in DNA or a sequence of amino acids in the proteins of a specific individual and use this ...
Aug 13, 2019
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25
Engineering
Moore's law—which says the number of components that could be etched onto the surface of a silicon wafer would double every two years—has been the subject of recent debate. The quicker pace of computing advancements in ...
Jul 25, 2019
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69
Energy & Green Tech
One of the most promising clean energy technologies just got even better. Researchers from the University of Delaware have developed the most powerful, durable hydroxide exchange membrane fuel cell components on record, which ...
Apr 9, 2019
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165
Energy & Green Tech
In the quest for the perfect alternative for gas-powered vehicles, there have been a lot of contenders over the years. When it comes to public perception, battery electric vehicles (BEVs) are some of the most widely known. ...
Mar 12, 2019
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154
Engineering
MIT engineers have designed an ingestible, Jell-O-like pill that, upon reaching the stomach, quickly swells to the size of a soft, squishy ping-pong ball big enough to stay in the stomach for an extended period of time.
Jan 30, 2019
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57
Robotics
A team of researchers working at the Chinese Academy of Sciences has developed an electronic skin that is sensitive enough to detect changes in air moving, falling drops and moving ants. In their paper published in the journal ...
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
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
