A laboratory-scale membrane bioreactor (MBR) was fed with synthetic wastewater to investigate the possibility of simultaneous removal of organic, nitrogen and phosphorus by intermittent aeration. The MBR consists of two compartments using a microfiltration membrane with 0.2 μm pore size and a surface area of 0.35 m2. Hydraulic retention time was set at 24 hours and solid retention time 25 days....

Abstract The evolution of octupole shapes and shape phase transitions in neutron rich actinides is studied within the covariant density functional framework. Octupole constrained energy surfaces, spectroscopic observables four isotopic chains of: Cm, Cf, Fm No with numbers $$186\le N \le 200$$ 186 ?</m...

We present designs that enable a significant increase of solar absorption in ultra-thin (100–300 nm) layers of gallium arsenide. In the wavelength range from 400–860 nm, 90–99.5% solar absorption is demonstrated depending on the photonic crystal architecture used and the nature of the packaging. It is shown that using only two hundred nanometer equivalent bulk thickness of gallium arsenide, for...

COP on a cooling machine is used to reveal the performance of engine. To increase value in system, it can be done by changing dimensions filter-drier and capillary pipes used. Therefore, this study was conducted determine effect pipe consumption electrical power produced 2-door refrigerator unit. The method an experimental method, namely varying filter drier tube refrigerator. Variations driers...

Fruit juices each have very distinct organic acids profiles that can be used as fingerprints for establishing authenticity. A method has been developed, optimised and validated for measuring by capillary electrophoresis citric, isocitric, malic and tartaric acids as authenticity markers in orange juices, without any sample treatment other than dilution and filtration. Final conditions were phos...

Age, height, weight and body mass index (weight/height2) of women finalists from seven running events (100 m, 200 m, 400 m, 800 m, 1500 m, 3000m and marathon) are analysed. The data on 174 runners are derived from four Olympics (Munich, Montreal, Moscow and Los Angeles). On average endurance runners (3000 m and marathon are 4.8 years older, 6 cm shorter and 5 kg lighter for their height than sp...

Ultra-thin HfO2 MOS capacitors on strained-Ge (s-Ge) have been fabricated with an extracted effective oxide thickness (EOT) of 4.9 Å and leakage current less than 0.2 A/cm at |VG| < 0.5 V. The CV measurements show little hysteresis and areal capacitance scaling for 50×50 to 200×200 μm devices. A high series resistance is observed, likely due to a 500 meV valence band offset between the s-Ge and...

Single-chamber solid oxide fuel cells ~SOFCs! with an anode-supported Ce0.9Gd0.1O1.95 electrolyte were operated in a mixture of butane and air at furnace temperatures of 200-300°C. The electromotive force ~emf! of the cell and the voltage drop were strongly influenced by the catalytic activity of the anode for the partial oxidation of butane. The promotion of hydrogen formation by the addition ...