- published: 08 Dec 2013
- views: 1635
Metastability denotes the phenomenon when a system spends an extended time in a configuration other than the system's state of least energy. During a metastable state of finite lifetime all state-describing parameters reach and hold stationary values. While in isolation:
A single particle analogy may be drawn with a ball resting in a hollow on a slope. With some perturbation the ball may start rolling again to lower levels. Isomerisation is another common example, where higher energy isomers are long lived as they are prevented from rearranging to the ground state by (possibly large) barriers in the potential energy.
The metastability concept originates in the physics of first-order phase transitions later to acquire new meanings in the study of aggregated subatomic particles (in atomic nuclei or in atoms) or in molecules, macromolecules or clusters of atoms and molecules. Later on it was borrowed for the study of decision-making and information transmitting systems.
This is an introductory video about metastable ion, molecular ion and fragment ion. It also states the importance of metastable ions in Mass spec analysis. For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Metastable materials are materials that can exist in more than one state. Scientists at the University of Bath are developing new metastable materials with useful properties that they can control and switch between states. Examples of properties they are developing include colour and porosity, and the researchers aim to get newly developed materials into real devices within the next five years.
matastable state
This video lecture explains the population inversion and metastable state in lasers.
Learn how to calculate a stable and metastable phase diagram and overlay the results on top of one another in the Thermo-Calc graphical mode. Download the examples here: http://www.thermocalc.com/support/doc... View more examples videos here: http://www.thermocalc.com/training/vi...
Supercooled water trick. Temperature outside was -12 degrees.
Advanced Metallurgical Thermodynamics by Prof. B.S. Murty, Department of Metallurgy and Material Science, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
PLR012 - LATENCE - SUPERHEATED Ep FULL EP : https://soundcloud.com/play-label-records/sets/latence-superheated-ep-plr012-1 Facebook: https://www.facebook.com/playlabelrecords http://www.playlabelrecords.be https://www.facebook.com/playlabelrecords https://soundcloud.com/play-label-records http://www.twitter.com/Play_Label
What if there is a way to destroy the universe so fundamentally that life as we know it will be impossible forever? Support us on Patreon so we can make more videos (and get cool stuff in return): https://www.patreon.com/Kurzgesagt?ty=h Kurzgesagt merch here: http://bit.ly/1P1hQIH Get the music of the video here: soundcloud: http://bit.ly/2dCWTw8 band camp: http://bit.ly/2dCXE8u http://www.epic-mountain.com THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: kurzgesagtismyinspiration , Diego Espinosa, Marcus Rudd, Nur Diana, Steven Magee, Shaun Thornhill, Edward Wright, Martin Olesen, Daniel Rinfret, Tim, Project e-NEU, Lomky, roland rauch, Sven Drapeau-Martin, Randy Juip, Rowdy, Oscar Roa, Jason Lopez, Samuel Bohler, Rani Ji, Donald Dahlin, Dane R. Dickey, Tushar Sharma, David ...