background: sickle cell disease is a genetic disorder of hemoglobin causing myriad of pathology including anemia. the purpose of this study was to evaluate the baseline values of steady state hemoglobin and packed cell volume as a guide to managing the early recognition of hemolytic crises in sickle cell anemia. methods: a cross-sectional study was conducted among the sickle cell patients atten...

This paper presents an overview of various simulation techniques that may be useful for predicting the in-situ (dynamic) performance of vapour-compression liquid chillers over a wide range of operating conditions. Four models were considered namely steady-state and transient physical models, and steady-state and transient neural network models. Typical real-time operating data taken under vario...

Subcooled flow boiling in multi-microchannels can be used as an efficient thermal management approach in compact electrical devices. Highly subcooled flow boiling of HFE 7100 is studied in two microchannel heat sinks to choose a proper numerical model for simulating boiling flows in microchannels. Results of five different numerical models, including Volume of Fluid (VOF), Eulerian boiling, Eul...

The local scour around bridge piers is one of the main causes failures. In this study, hole dimensions circular were investigated under clear water conditions for various steady flow rates. experiments performed with four different pier diameters and seven rates by using uniform sediment a median diameter 1.63 mm geometric standard deviation 1.3. After each bathymetry was determined. New empiri...

Abstract We compare the low-temperature photoluminescence (PL) intensities of a range GaInN/GaN quantum well (QW) structures under identical excitation conditions, mounting samples side by side. Normalizing measured intensity to absorbed power density in QWs, we find that PL efficiencies several samples, which show close 100% internal efficiency (IQE) time-resolved PL, saturate at nearly an val...