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The utility of a physiologically based extraction test for evaluating the bioaccessibility of metals from fly ash in the human gastrointestinal system was evaluated in the present research. Calcium-rich and silica-rich fly ashes collected from eight power plants in India and United States of America were assessed for bioaccessibility for arsenic, chromium, lead, selenium and zinc. The results from...
This paper describes some basic theories about the frequency selective surface (FSS). For the first time we demonstrate a novel design of a multi-band FSS to the best of our knowledge. It consists of a periodic array of concentric-square-shaped elements. Like traditional FSSs, the surface of the proposed FSS can simply be fabricated using printed circuit technology on the substrate. Simulation results...
This paper describes some basic theories about the frequency selective surface (FSS). For the first time we demonstrate a novel design of a multi-band FSS to the best of our knowledge. It consists of a periodic array of concentric-square-shaped elements. Like traditional FSSs, the surface of the proposed FSS can simply be fabricated using printed circuit technology on the substrate. Simulation results...
A 32 nm logic technology for high performance microprocessors is described. 2nd generation high-k + metal gate transistors provide record drive currents at the tightest gate pitch reported for any 32 nm or 28 nm logic technology. NMOS drive currents are 1.62 mA/um Idsat and 0.231 mA/um Idlin at 1.0 V and 100 nA/um Ioff. PMOS drive currents are 1.37 mA/um Idsat and 0.240 mA/um Idlin at 1.0 V and 100...
A novel packaging approach has been demonstrated for circuits connected with flexible microsprings. The approach is based on silicon micromachined features and results in a highly accurate and low cost packaging solution. The micromachined features were processed into silicon with an anisotropic wet etch forming inverted pyramidal micro-pits. The pits are integrated into the chips along with arrays...
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