Results of a thermoelectric power component (Sf ) and electrical resistivity (ρf ) measurements connected with the temperature unstable intermediate valence of Ce are presented for CeNi, CeNi2 and CeNi2Si2 compounds in the temperature range 4–800 K. It is shown that dependences Sf (T ) and ρf (T ) are well described in a wide temperature range within the framework of a simple model of a narrow ...

Thermal effects are becoming increasingly important during integrated circuit design. Thermal characteristics influence reliability, power consumption, cooling costs, and performance. It is necessary to consider thermal effects during all levels of the design process, from the architectural level to the physical level. This is challenging because design-time temperature prediction requires acce...

GaMnAs/GaAs films were grown via molecular beam epitaxy using both low and high substrate temperatures. The films were investigated using Hall effect and photoluminescence (PL) measurements from 8 to 300K. The carrier concentrations in the samples grown at a low substrate temperature are greater than those in the samples grown at a high substrate temperature. The PL spectra show a GaAs exciton ...

processing map for hot working of ti-if steel has been developed in the temperature range of 750 to 1100 °cand strain rate of 0.01 to 100 s-1. this map in the austenite region exhibits a single domain with a peak efficiencyof 45% occurring at 1025 °c and strain rate of 0.02 s-1. the domain extends over the temperature range of 1000to 1100 °c and strain rate range of 0.01 to 1 s-1. the true stre...

it is necessary to use empirical models for estimating of instantaneous peak discharge because of deficit of gauging stations in the country. hence, at present study, two models including artificial neural networks and nonlinear multivariate regression were used to predict peak discharge in taleghan watershed. maximum daily mean discharge and corresponding daily rainfall, one day antecedent and...

Central composite rotatable of response surface methodology experimental design was used to determine effect of mash quantity and roasting duration on physical, pasting and sensory properties of gari. Five levels of quantity (317, 400, 600, 800 and 882.2 g) and roasting time (37.1, 35, 40, 45 and 47.1 min) were used at a fixed roasting temperature (95oC). The responses were moisture, pH, bulk d...

The isometric and isotonic contractile properties of the cross-striated adductor muscle of the bay scallop (Argopecten irradians) were measured in vitro at 10, 15 and 20 degrees C. The length at which twitch force was maximal as a function of the closed length in situ (L0/Lcl) averaged 1.38 +/- 0.01 (mean +/- S.E.M.) at 10 degrees C. This length is very close to the typical length at maximum ga...

BACKGROUND Most cast materials mature and harden via an exothermic reaction. Although rare, thermal injuries secondary to casting can occur. The purpose of this study was to evaluate factors that contribute to the elevated temperature beneath a cast and, more specifically, evaluate the differences of modern casting materials including fiberglass and prefabricated splints. METHODS The temperat...

Experiments and simulations have been performed to examine the finite-temperature behavior of Ga17 + and Ga20 + clusters. Specific heats and average collision cross sections have been measured as a function of temperature, and the results compared to simulations performed using first-principles density functional molecular dynamics. The experimental results show that while Ga17 + apparently und...