A research team affiliated with UNIST recently reported that the performance of electrodes for an alkaline hydrogen evolution reaction (HER) can be significantly improved even without expensive electrocatalysts and complicated ...
Analytical Chemistry
Oct 25, 2022
0
14
The harder you hit something—a ball, a walnut, a geode—the more likely it is to break open. Or, if it does not break open, it's more likely to at least lose a little bit of its structural integrity, the way new baseball ...
Planetary Sciences
Aug 17, 2022
0
200
Around 4.4 billion years ago, the early solar system resembled a game of space rock dodgeball, as massive asteroids and comets, and, later, smaller rocks and galactic debris pummeled the moon and other infant terrestrial ...
Planetary Sciences
Jul 7, 2022
0
902
Salt water within the icy shell of Jupiter's moon Europa could be transporting oxygen into an ice-covered ocean of liquid water where it could potentially help sustain alien life, according to a team of researchers led by ...
Astrobiology
Mar 24, 2022
2
1120
A University of Wyoming researcher and his team discovered that weathering of subsurface rock in the Southern Sierra Nevada Mountains of California occurs due more to rocks expanding than from chemical decomposition, as previously ...
Earth Sciences
Sep 18, 2019
0
28
Materials with controlled porosity have found diverse applications in separation, catalysis, energy storage, sensors and actuators, tissue engineering and drug delivery. Multiple methods have been developed to fabricate well-defined ...
Materials Science
Jul 31, 2019
0
13
Known for their exceptional porosity that enables the trapping or transport of molecules, metal-organic frameworks (MOFs) take the form of a powder, which makes them difficult to format. For the first time, an international ...
Materials Science
Oct 10, 2017
0
114
Many species of owl are able to hunt without being heard by their prey by suppressing the noise of their wings at sound frequencies above 1.6 kilohertz (kHz)—including the range at which human hearing is most sensitive.
Mathematics
Sep 27, 2017
0
136
A new technology of producing an unsinkable aluminum alloy was developed at Peter the Great St. Petersburg Polytechnic University (SPbPU). Porosity is produced by the addition of foaming gas into liquid aluminum during re-melting. ...
Materials Science
Jul 18, 2017
0
7
Extinct archosaurs' eggshell porosity may be used as a proxy for predicting covered or exposed nest types, according to a study published November 25, 2015 in the open-access journal PLOS ONE by Kohei Tanaka from the University ...
Archaeology
Nov 25, 2015
0
8
Porosity or void fraction is a measure of the void (i.e., "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0–1, or as a percentage between 0–100%. The term is used in multiple fields including pharmaceutics, ceramics, metallurgy, materials, manufacturing, earth sciences and construction.
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