Results 171 to 180 of about 3,058 (201)
Some of the next articles are maybe not open access.
Journal of Medical Entomology, 1997
Supercooling points were determined for eggs, 3rd instars, pupae, newly emerged unfed adults and 3-d-old engorged laboratory reared adults of Haematobia irritans (L.) and Stomoxys calcitrans (L.). Wild nondiapausing and diapausing pupae of H. irritans also were tested. Mean supercooling points ranged from -28.0 degrees C for H.
S R, Jones, S E, Kunz
openaire +2 more sources
Supercooling points were determined for eggs, 3rd instars, pupae, newly emerged unfed adults and 3-d-old engorged laboratory reared adults of Haematobia irritans (L.) and Stomoxys calcitrans (L.). Wild nondiapausing and diapausing pupae of H. irritans also were tested. Mean supercooling points ranged from -28.0 degrees C for H.
S R, Jones, S E, Kunz
openaire +2 more sources
Supercooling point is an individually fixed metric of cold tolerance in Pyrrhocoris apterus
Journal of Thermal Biology, 2018Measuring the supercooling point (SCP) is a standard procedure to describe the cold tolerance of freeze-avoiding arthropods. The SCP of an individual animal is a stochastic event that will occur with increasing probability as the temperature is lowered below the freezing point of that animal.
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
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
Physical Review E, 2014
In this paper we study the four-point correlation function χ(4) of collective density fluctuations in a nonequilibrium liquid. The equilibration is controlled by a modified stretched exponential behavior (exp[-(t(w)/τ)(β)]) having the relaxation time τ dependent on the aging time t(w).
Bhaskar, Sen Gupta, Shankar P, Das
openaire +2 more sources
In this paper we study the four-point correlation function χ(4) of collective density fluctuations in a nonequilibrium liquid. The equilibration is controlled by a modified stretched exponential behavior (exp[-(t(w)/τ)(β)]) having the relaxation time τ dependent on the aging time t(w).
Bhaskar, Sen Gupta, Shankar P, Das
openaire +2 more sources
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
Energy landscape, minimum points and non-Arrhenius behavior of supercooled liquids
AIP Conference Proceedings, 1998A theoretical explanation of the non-Arrhenius behavior observed in supercooled liquids at sufficiently low temperatures is given using length scales, transition rates and time scales in the 3N-dimensional configuration space. The relaxation time and the viscosity, respectively, can be expressed as nonlinear functions of the reduced inverse temperature
openaire +1 more source
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
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
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