A Game-theoretic Approach to Power Management in MIMO-OFDM Ad Hoc Networks Chao Liang Advisor: Kapil R. Dandekar, Ph.D. With the increasing demand for wireless services, the efficient use of spectral resources is of great importance. MIMO-OFDM communication systems hold great promise in using radio spectrum efficiently while power control will improve energy efficiency. Existing approaches such...

Operating maturing assets poses increasingly complex challenges to operators. Meeting hourly or daily production targets becomes more difficult when wells are more often shut in for e.g. water washes (against salt deposition) or solvent jobs (at asphaltenes deposition). Declining reservoir pressure in turn results in less margin to compensate lost production while topside facilities can put con...

To study the gating of a GABA-activated Cl- channel, currents from single channels activated by 1.0 microM GABA were examined in patches of membrane excised from cultured chick cerebral neurons. The distributions of open and shut interval durations were each described by the sum of 3 exponential components, suggesting that the channel normally enters at least 3 open and 3 shut states. Five diff...

background and aims. dental handpiece is a source of contamination because it is in constant touch with the oral cavity. sterilization does not seem to be sufficient to prevent penetration of microorganisms into air and water lines of the unit, because negative pressure developed by valves (which are placed in water outlets) and post shut-off inertial rotation of handpiece result in water and d...