Magnetic mixing creates quite a stir (w/ Video)
Sandia researchers have developed a process that can mix tiny volumes of liquid, even in complicated spaces.
Researchers currently use all types of processes to try and create mixing, with only "mixed" success. "In small devices," says Sandia materials scientist Jim Martin "people have tried all kinds of pillars and mixing cells to initiate mixing, but these approaches don't work well." Researchers need simpler and more reliable ways to mix in tiny places such as micrometer-sized channels, Martin said.
"Mixing liquids in tiny volumes," Martin said, "is surprisingly difficult." When fluid is pushed down a big pipe, eddies are generated that create mixing. But if fluid is pushed down a small pipe no eddies are generated and mixing does not occur unless you subject the fluid to tremendous pressure, which isn't usually easy or feasible, he said.
In the new method of mixing, when one turns on a particular kind of magnetic field, the magnetic particles suspended in the fluid form chains like strings of pearls. The chains start swirling around and that's what does the mixing. The particles are then removed magnetically, leaving a nice mixed-up liquid.
Lees verder: http://www.physorg.com/news175873414.html
Bron: Physorg.com
Laatste berichten
- 20:09 Bruine vlekken op treinaanwijzerbord 2
- 20:01 Rood laserlicht
- 15:28 Vraag 2009 Juli Vraag 5 5
- 12:51 positie 2
- 10:44 Schroefdraad berekening 8
- 00:15 [scheikunde] Kan chloorgas de geleiding van elektriciteit belemmeren? 9
- 21:15 Weerfrustratie 9
- 23 apr geen minkowski-ruimte toch? Doe ik dit nou fout? 15
- 23 apr do-re-mi-fa-so vliegtuigen 7
- 23 apr Kunnen quantum Zonnecellen 190% quantum efficiënt zijn 3
- 23 apr De Euro Nederlandse 100 qubit computer komt eraan
- 23 apr projectiel 8
- 23 apr Verschil tussen deze 2 vragen 5
- 23 apr [scheikunde] berekeningen labo vitamine c bepaling 1
- 22 apr [wiskunde] rode en witte ballen verdelen 8
- 22 apr Rotatie van het heelal 41
- 22 apr Muntje opgooien 14
- 21 apr Reactiviteit silyl enol ethers 1
- 21 apr Criterium voor vochtretentie
- 21 apr speciale rel. theorie 5
Nieuwsberichten
- 04 mar Een nieuw soort magnetisme: altermagnetisme
- 31 okt AI kan via stem diabetes vaststellen 11
- 21 okt Einstein krijgt wéér gelijk 45
- 07 feb witter dan wit 20
- 19 jun irrigatie en de aardas