Results 161 to 170 of about 4,490,792 (186)
Some of the next articles are maybe not open access.
Beckmann freezing point method: easy arresting or supercooling
Journal of Chemical Education, 1978A simple procedure with a slightly modified Beckmann freezing point setup is described to prevent the troublesome large supercooling.
openaire +1 more source
Volume of supercooled water under pressure and the liquid-liquid critical point
The Journal of Chemical Physics, 2010The volume of water (H2O) was obtained at about 200–275 K and 40–400 MPa by using emulsified water. The plot of volume against temperature showed slightly concave-downward curvature at pressures higher than ≈200 MPa. This is compatible with the liquid-liquid critical-point hypothesis, but hardly with the singularity-free scenario.
openaire +2 more sources
The Siberian timberman Acanthocinus aedilis: a freeze-tolerant beetle with low supercooling points
Journal of Comparative Physiology B, 2009Larvae of the Siberian timberman beetle Acanthocinus aedilis display a number of unique features, which may have important implications for the field of cold hardiness in general. Their supercooling points are scattered over a wide temperature range, and some individuals have supercooling points in the low range of other longhorn beetles. However, they
E, Kristiansen +4 more
openaire +2 more sources
Controversial Evidence on the Point of Minimum Density in Deeply Supercooled Confined Water
The Journal of Physical Chemistry Letters, 2010The issue of the existence of a minimum of density at 210 K in water confined in MCM41 is tackled by neutron diffraction with H/D isotopic substitution over a wide range of momentum transfer, which allows refining in a single experiment both the meso- and the atomic-scale structure.
Mancinelli R +2 more
openaire +4 more sources
Polyamorphism and the universal liquid–liquid critical point in the supercooled state
Diamond Light Source Proceedings, 2010The physics of critical phenomena is well established in systems as diverse as molecular fluids, crystalline alloys and magnetic materials. As the critical point is approached, the susceptibility increases anomalously and fluctuations give rise to dramatic opalescence.
openaire +1 more source
Effect of Sodium Dodecyl Sulfate on the Supercooling Point of Ice and Clathrate Hydrates
Energy & Fuels, 2009The effect of sodium dodecyl sulfate (SDS) on the supercooling point (SCP) of ice, tetrahydrofuran (THF) hydrates, and THF + CH4 binary hydrates was investigated by using a high-pressure differenti...
Zhang, JS Zhang, Junshe +1 more
openaire +2 more sources
Experimental evidence of a liquid-liquid critical point in supercooled water
ScienceThe search for the liquid-liquid critical point in supercooled water is challenging owing to rapid crystallization. We studied supercooled water at timescales before ice formation by heating high- and low-density amorphous ices using infrared ultrafast laser pulses, followed by x-ray scattering.
Seonju You +24 more
openaire +2 more sources
Point to set correlations in supercooled liquids
2011Point to set correlations in supercooled ...
openaire +2 more sources
A simple method to adjust cooling rates for supercooling point determination.
Cryo letters, 2004A simple method to obtain predetermined constant cooling rates for insect supercooling point (SCP) determination is described. A transient heat transfer equation was used to design polystyrene cubes of different sizes to yield constant rates of cooling at their centers when held at a constant surrounding temperature. Cubes of 0.29 x 0.29 x 0.29 m and 0.
M A, Carrillo +4 more
openaire +1 more source