Abstract: An antibacterial vascular prosthesis obtained by winding a tube, fiber or sheet formed from a polymeric material and combined with an antibacterial substance on the outer surface of a vascular prosthesis composed of a tubular porous body formed of a synthetic resin is provided. The antibacterial vascular prosthesis can exhibit an antibacterial activity over a long period of time without impairing the porous structure, antithrombogenicity and histocompatibility inherent in the vascular prosthesis composed of the tubular porous body formed of the synthetic resin. An antibacterial surgical suture comprising a tube or fiber formed from a polymeric material and combined with an antibacterial substance is also provided.

Abstract: A fuel consumption rate detecting apparatus comprises a circuit for representing fuel consumption amount per unit time, a pulse generator for generating a pulse signal whose pulse width is inversely proportional to the fuel consumption and whose frequency is inversely proportional to the vehicle speed, and meter circuit for measuring the mean value of the pulse signal, which is, in turn, proportional to the fuel consumption rate.

Abstract: There is provided an electronically controlled fuel injection system comprising a temperature fuel enrichment circuit for generating, in accordance with the output signal of an internal combustion engine temperature sensor, an output signal corresponding to a temperature fuel enrichment characteristic to provide the required fuel enrichment for cold operation, and fuel injection means for injecting an increased quantity of fuel in accordance with the output signal of the temperature fuel enrichment circuit. The system is additionally provided with a revolution compensation circuit for generating a revolution signal corresponding to the number of engine revolutions per minute for continuously decreasing the temperature fuel enrichment characteristic of the temperature fuel enrichment circuit in accordance with increase in the number of engine revolutions per minute.