Recent research on scientific collaboration shows that distributed interdisciplinary collaborations report comparatively poor outcomes, and the inefficiency of the coordination mechanisms is partially responsible for the problems. To improve information sharing between past collaborators and future team members, or reuse of collaboration records from one project by future researchers, this pape...

In this study, the exergy efficiency of a flat plate solar collector using Al2O3, TiO2, CuO nanoparticles and pure water as base fluid is studied. Solar radiation is selected between 200 to 600 W/m2. The method to determine optimum values of optimization variables has been developed by Genetic Algorithm Toolbox in MATLAB software. Results show by increasing solar radiation the optimized exergy ...

The use of solar energy to power base stations of cellular networks is becoming increasingly interesting, in both areas where the power grid is not present or not reliable, and areas where the power grid is ubiquitous and reliable, but energy costs are increasing. In this paper, we investigate the optimal dimensioning of the photovoltaic panel and energy storage of a hybrid base station powerin...

Total solar eclipses (TSEs) offer a good opportunity to look for photons produced in possible radiative decays of solar neutrinos. In this paper we briefly review the physics bases of such searches as well as the existing limits for the ν2 and ν3 proper lifetimes obtained by such experiments. We then report on the observations performed in occasion of the 29 March 2006 TSE, from Waw an Namos, L...

The low conversion efficiency of solar cells produces large amounts of thermal energy to the cells, and with an increase in the temperature of solar cells, their electrical efficiency decreases. Therefore, a hybrid photovoltaic thermal system improves the overall efficiency of the system by adding thermal equipment to the solar cell and removing excessive heat from these cells. In this paper, w...

To improve the performances of Nickel-Metal Hydride batteries, an important step is the understanding of the corrosion processes that take place in the electrode material. In particular, the present study focuses for the first time on the model (La,Mg)2Ni7 system. The calendar corrosion in 8.7M KOH medium was investigated from 6 hours to 16 weeks immersion. By a unique combination of structural...