The influence of temperature on the indentation size effect is explored experimentally. Copper is indented on a custom-built high-temperature nanoindenter, at temperatures between ambient and 200 0C, in an inert atmosphere that precludes oxidation. Over this range of temperatures, the size effect is reduced considerably, suggesting that thermal activation plays a major role in determining the l...

Thermal effects on the creation of particles under the influence of time-dependent boundary conditions are investigated. The dominant temperature correction to the energy radiated by a moving mirror is derived by means of response theory. For a resonantly vibrating cavity the thermal effect on the number of created photons is obtained nonperturbatively. Finite temperatures can enhance the pure ...

bezhi (or beji) is a special sweet and fried cookie which is produced traditionally in west region of iran. in this study, the effect of different temperature levels (150, 165 and 180°c) and frying time (1 to 8 min) on physicochemical properties of bezhi was investigated. the obtained results showed that increasing frying time up to the first 3 minutes causes a significant increase in sample vo...

The effect of intramuscular temperature upon the holding time of 70% MVC handgrip contraction was studied in 12 college-age men. The intramuscular temperature was regulated by 30 minutes immersion of the forearm and hand in a waterbath at 18 degrees C, 35 degrees C, or 45 degrees C. Elevating intramuscular temperature significantly reduced the holding time duration, (25.7 +/- 6.2 vis 38.3 +/- 8...

The effect of temperature on umami taste has not been previously studied in humans. Reported here are 3 experiments in which umami taste was measured for monopotassium glutamate (MPG) and monosodium glutamate (MSG) at solution temperatures between 10 and 37 °C. Experiment 1 showed that for subjects sensitive to MPG on the tongue tip, 1) cooling reduced umami intensity whether sampled with the t...

The quantum Hall effect (QHE), one example of a quantum phenomenon that occurs on a truly macroscopic scale, has attracted intense interest since its discovery in 1980 and has helped elucidate many important aspects of quantum physics. It has also led to the establishment of a new metrological standard, the resistance quantum. Disappointingly, however, the QHE has been observed only at liquid-h...

We study the effects of temperature and sliding velocity on superlubricity in numerical simulations of the Frenkel-Kontorova model. We show that resonant excitations of the phonons in an incommensurate sliding body lead to an effective friction and to thermal equilibrium with energy distributed over the internal degrees of freedom. For finite temperature, the effective friction can be described...