In this paper, the classic Kelvin-Voigt model coupled thermo-viscoelasticity model of hollow and solid spheres under radial symmetric loading condition is considered. A full analytical method is used and an exact unique solution of the classic coupled equations is presented. The thermal and mechanical boundary conditions, the body force, and the heat source are considered in the most general fo...

Phase-change materials (PCM) can be used to reduce thermal stress and improve thermal comfort for workers wearing protective clothing. The aim of this study was to investigate the effect of PCM in protective clothing used in simulated work situations. We hypothesized that it would be possible to optimize cooling performance with a design that focuses on careful positioning of PCM, minimizing to...

We have used molecular dynamics to calculate the thermal conductivity of symmetric and asymmetric graphene nanoribbons (GNRs) of several nanometers in size (up to approximately 4 nm wide and approximately 10 nm long). For symmetric nanoribbons, the calculated thermal conductivity (e.g., approximately 2000 W/m-K at 400 K for a 1.5 nm x 5.7 nm zigzag GNR) is on the similar order of magnitude of t...

Nonthermal fixed points represent basic properties of quantum field theories, in addition to vacuum or thermal equilibrium fixed points. The functional renormalization group on a closed real-time path provides a common framework for their description. For the example of an O(N) symmetric scalar theory it reveals a hierarchy of fixed point solutions, with increasing complexity from vacuum and th...

Thermal stress has been considered to be among the most important determinants of organismal distribution in the rocky intertidal zone. Yet our understanding of how body temperatures experienced under field conditions vary in space and time, and of how these temperatures translate into physiological performance, is still rudimentary. We continuously monitored temperatures at a site in central C...

Poultry are exposed to a number of concurrent stressors during transportation. It is proposed that thermal challenges (both elevated thermal loads and cold stress) constitute the main threat to the birds’ welfare and survival. The effects of thermal stress may be exacerbated by extended withdrawal of food or water and by exposure to vibrations and accelerations. Existing pathologies and injurie...

Article history: Received 23 May 2015 Accepted 16 June 2015 Available online xxxx Weperformed thermal and constant voltage stress on oligothiophene-based p-type organic thin-film-transistors. The devices subjected to thermal stress without bias showed limited variations. The bias stress performed at 20 °C inducedmonotonic charge trapping, andmobility degradation. The devices subjected to simult...

The thermal conduction of suspended few-layer h-BN sheets was experimentally investigated using a noncontact micro-Raman spectroscopy method. The first-order temperature coefficients for 1L, 2L and 9L h-BN sheets were measured to be – (3.41 ± 0.12) × 10-2, – (3.15 ± 0.14) × 10-2 and – (3.78 ± 0.16) × 10-2 cm-1/K, respectively. The room-temperature thermal conductivity of few-layer h-BN sheets w...