High performance stream aggregation is critical for many emerging applications that analyze massive volumes of data. Incoming data needs to be stored in a sliding window during processing, case the functions cannot computed incrementally. Updating with new incoming values and reading it feed are two primary steps aggregation. Although updates can supported efficiently using multi-level queues, ...

Abstract Ventilating of multi pane-glazed windows using wasted air buildings is an effective technique to minimize heat loss through and save heating energy in cold regions. In low-scaled occupancy with high WWR ratio, supply a low flow rate ventilation systems, resulting declination its thermal performance. Therefore, this study introduces methods managing the utilisation optimise saving. Two ...

Purpose. The purpose of this finite element study was to compare stresses, strains, and displacements of double versus single implant, in immediate loading for replacing mandibular molar. Materials and Methods. Two 3D FEM models were made to simulate implant designs. The first model used 6 mm wide-diameter implant to support a single molar crown. The second model used 3.75-3.75 double implant d...

The purpose of energy-saving retrofit rural dwellings is to obtain a more comfortable indoor thermal environment with reasonable investment. utilization rate heating and air conditioning equipment for in poor areas very low, the buildings operate natural ventilation mode all year round. Since existing research on aimed at air-conditioned buildings, methods results are not applicable dwellings. ...