The increasing wind power penetration in power systems represents a techno-economic challenge for power producers and system operators. Due to the variability and uncertainty of wind power, system operators require new solutions in order to increase the controllability of wind farm output. On the other hand, producers that include wind farms in their portfolio need to find new ways to boost the...

The goal of this investigation is the thorough analysis and optimization a solar-assisted heat pump heating unit for covering space demand building in Athens, Greece. novelty studied system use high-temperature that can operate with radiative terminal units, leading to high thermal comfort standards. examined includes flat-plate solar collectors, an insulated storage tank, auxiliary electrical ...

The use of supercapacitors as energy storage systems is evaluated in this work. Supercapacitors are compared with other technologies such as compressed air, pumped hydro, superconductors and flywheels. This paper is focused on medium scale energy storage systems (applied to 100 kW photovoltaic generation plants). The supercapacitor is studied in detail, presenting these device structures, how t...

AIM To evaluate corneal injury during general anesthesia and analyze the protective effect of medical hydro-gel eye patch in clinics. METHODS Seventy-six patients with 152 eyes undergoing general anesthesia were included. None had positive corneal fluorescein staining before surgery. Both eyes of each patient were analyzed, with one randomly allocated to receive medical hydro-gel eye patch, a...

The combination of a 16 inch Pitot tube pump with a switched reluctance motor represents a significant development in the field of high-pressure pumping. A field proven Pitot tube pump design has been mechanically integrated with a high performance switched reluctance motor. The resulting system is approximately 40 percent of the size of the standard unit it replaces. The closecoupled pump elim...

Soil moisture influences and is influenced by water, climate, and ecosystem conditions, affecting associated ecosystem services in the landscape. This paper couples snow storage-melting dynamics with an analytical modeling approach to screening basin-scale, long-term soil moisture variability and change in a changing climate. This coupling enables assessment of both spatial differences and temp...

In the title compound, C(16)H(20)N(2)S, a potential tetra-hydro-isoquinoline (TIQ) thia-zole ligand, the N-containing six-membered ring of the TIQ unit adopts a half-chair conformation. There are four mol-ecules in the asymmetric unit. No classical hydrogen bonds or π-π inter-actions were found in the crystal structure.

The variability of the simulated hydroclimatology of the WaterGAP Global Hydrology Model (WGHM) is analysed. Main object of this study is the ENSO-driven variability of the water storage of South America. The horizontal model resolution amounts to 0.5 degree and it is forced with monthly climate variables for 1961– 1995 of the Tyndall Centre Climate Research Unit dataset (CRU TS 2.0) as a repre...