Results 21 to 30 of about 3,058 (201)

Cold tolerance and trehalose accumulation in overwintering larvae of the codling moth, Cydia pomonella (Lepidoptera: Tortricidae)

open access: yesEuropean Journal of Entomology, 2007
Seasonal variations in the supercooling point, survival at low temperatures and sugar content were studied in field-collected codling moth larvae. The supercooling point of field-collected larvae decreased significantly from a mean value of -13.4°C in ...
Abbas KHANI   +2 more
doaj   +1 more source

Ring-banded spherulites in polylactide and its blends

open access: yesPolymer Testing, 2021
In this paper the influence of different aspects of crystallization process on the formation of ring-banded spherulites and the transition between banded and non-banded structures in polylactide was analyzed.
Marta Safandowska, Artur Rozanski
doaj   +1 more source

Saddle points and dynamics of Lennard-Jones clusters, solids, and supercooled liquids [PDF]

open access: yesThe Journal of Chemical Physics, 2002
The properties of higher-index saddle points have been invoked in recent theories of the dynamics of supercooled liquids. Here we examine in detail a mapping of configurations to saddle points using minimization of |∇E|2, which has been used in previous work to support these theories.
Doye, J, Wales, D
openaire   +3 more sources

Experimental investigation on nucleating agent for low temperature binary eutectic salt hydrate phase change material [PDF]

open access: yesE3S Web of Conferences
The melting enthalpy and melting temperature have a significant impact on the latent heat that results from phase change materials (PCMs) used for thermal energy storage.
Kalidasan B.   +4 more
doaj   +1 more source

Fickian crossover and length scales from two point functions in supercooled liquids [PDF]

open access: yesThe Journal of Chemical Physics, 2006
Particle motion of a Lennard-Jones supercooled liquid near the glass transition is studied by molecular dynamics simulations. We analyze the wave vector dependence of relaxation times in the incoherent self-scattering function and show that at least three different regimes can be identified and its scaling properties determined. The transition from one
Stariolo, D. A., Fabricius, G.
openaire   +3 more sources

Seasonal cold adaptation dynamics of some carabid beetle species: Carabus granulatus, Pterostichus oblongopunctatus and Platynus assimilis

open access: yesMetsanduslikud Uurimused, 2012
Cold-hardiness can be measured by supercooling points – the temperature at which spontaneous freezing occurs. Seasonal changes in supercooling point were assessed in field-collected predacious carabid beetle species: Carabus granulatus L., Pterostichus ...
Ploomi Angela   +6 more
doaj   +1 more source

Cold tolerance and supercooling capacity in overwintering adults of the alfalfa weevil, Hypera postica (Col.: Curculionidae) [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2013
Alfalfa weevil, Hypera postica Gyllenhal, is a key pest of alfalfa and widely distributed in alfalfa fields of Iran. In early autumn, the first adults of H.
S. Moharramipour, M. Saeidi
doaj  

Freezing Injury Index of Kiwifruit Branches for Main Varieties Under Simulated Low Temperature

open access: yes应用气象学报, 2021
Low temperature freezing injury is the main meteorological disaster affecting the yield and quality of kiwifruit in China. To explore the damage mechanism of low temperature stress on kiwifruit and establish the indices of kiwifruit overwintering ...
Li Hualong   +7 more
doaj   +1 more source

Overwintering strategy and mechanisms of cold tolerance in the codling moth (Cydia pomonella). [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: The codling moth (Cydia pomonella) is a major insect pest of apples worldwide. Fully grown last instar larvae overwinter in diapause state. Their overwintering strategies and physiological principles of cold tolerance have been insufficiently
Jan Rozsypal   +3 more
doaj   +1 more source

Atomistic and coarse-grained simulations reveal increased ice nucleation activity on silver iodide surfaces in slit and wedge geometries [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Ice clouds can form at low and moderate supercooling through heterogeneous ice nucleation on atmospheric particles. Typically, the nucleation requires active sites with special chemical and physical properties, including surface topology and roughness ...
G. Roudsari   +3 more
doaj   +1 more source

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