In this paper, a PV-Trombe wall (PV-TW) installed in a fenestrated room with heat storage is investigated to approach the practical application of PV-TW. Based on an updated mathematical model, theoretical simulation has been conducted for PV-TW in this case. Furthermore, field testing for this case has also been performed to validate the model, and then the simulated and experimental results a...

Wind turbines convert kinetic to electrical energy, which returns to the atmosphere as heat to regenerate some potential and kinetic energy. As the number of wind turbines increases over large geographic regions, power extraction first increases linearly, but then converges to a saturation potential not identified previously from physical principles or turbine properties. These saturation poten...

Systematic literature searches are of paramount importance for investigators involved in clinical research as well as for those overviewing clinical evidence.1 While several electronic databases are available to search for controlled clinical studies, PubMed, the online version of the US National Library of Medicine MEDLINE database, is probably one of the most complete and user-friendly.2 None...

In activation network problems we are given a directed or undirected graph G = (V,E) with a family {fuv : (u, v) ∈ E} of monotone non-decreasing activation functions from D to {0, 1}, where D is a constant-size subset of the non-negative real numbers, and the goal is to find activation values xv for all v ∈ V of minimum total cost ∑ v∈V xv such that the activated set of edges satisfies some con...

background: fatigue can cause a significant effect on the mechanics of complex motor skills and reduce physical and mental efficiency. one of the common ways to reduce fatigue is passive recovering or using massage and cryotherapy after exercise. the present study aimed to compare the effects of massage and cryotherapy on muscles fatigue and isokinetic parameters. methods: this study was conduc...

The dynamics of perturbations around sinks and sources of traveling waves (TW) is studied in the cubic-quintic Ginzburg–Landau equation from an analytical point of view. Perturbations generically propagate in a direction opposite to the TW. Thus, a sink of TW is a source of perturbations and vice versa. For small values of time we predict there is a lower bound for the group velocity. For large...

We study toy aging processes in hierarchically decomposed phase spaces where the equilibrium probability distributions are multifractal. We found that the an auto-correlation function, survival-return probability, shows crossover behavior from a power law t−x in the quasi-equilibrium regime (t ≪ tw) to another power law t −λ (λ ≥ x) in the off-equilibrium regime (t ≫ tw) obeying a simple t/tw s...