Abstract:
Fuel management system for efficient operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder of the engine. A fuel management microprocessor system controls injection of the anti-knock agent so as to control knock and minimize that amount of the anti-knock agent that is used in a drive cycle. It is preferred that the anti-knock agent is ethanol. The use of ethanol can be further minimized by injection in a non-uniform manner within a cylinder. The ethanol injection suppresses knock so that higher compression ratio and/or engine downsizing from increased turbocharging or supercharging can be used to increase the efficiency of the engine.
Abstract:
A cellular wireless core network for establishing calls via dynamic virtual circuit connections includes a source call server exchanging messages with a destination call server in order to determine a destination media gateway. The destination media gateway determines a destination logical ATM component and its logical ATM component address. The destination media gateway returns the destination logical ATM component address to the destination call server, which, in turn, returns the destination logical ATM component address to the source call server. The source call server forwards the destination logical ATM component address to a source logical ATM component. The source logical ATM component sends an Establish Request (ERQ) message to the destination logical ATM component containing the destination logical ATM component address, the source logical ATM component address, and a virtual circuit connection identifier that uniquely defines the virtual connection through the ATM network.
Abstract:
A responsive polymeric system including a responsive polymeric component capable of undergoing a transition that results in a sharp increase in viscosity in response to a triggering effected at a predetermined body site. The system includes a solid non-ceramic reinforcing component which reinforces the polymeric component, and an aqueous-based solvent wherein the viscosity of the responsive polymeric component increases by at least about 2 times upon exposure to a predetermined trigger.
Abstract:
The invention provides a polyurethane amide segmented copolymer selected from:a) a segmented block polyurethane amide (PEUAm) of the following repeating unit [I] ##STR1## b) a segmented block polyurethane amide of the following repeating unit [II] ##STR2##