One embodiment of the present invention provides a method and apparatus to track demand partners in a pay-per call performance based advertising system. In one embodiment, the method and apparatus include assigning at least one telephonic reference to an advertiser, the reference is to be included in an advertisement on a media channel of a demand partner. The advertiser is assessed a charge based...

Sensor is intended for use in highly sensitive analytical devices for qualitative and quantitative analysis of natural waters and technology-related solutions, containing low concentrations of components determined. Design of a sensor provides for simplification and costs reduction of its manufacture, widening range of solutions analyzed, improvement of their kinetic characteristics and increa...

The film comprises a first layer for bonding to the propeller surface to be protected and a separate second layer of PTFE secured to the outer side of the first layer.

The invention relates to a method for the treatment of hazardous waste (1) in liquid form and in pastey form in a distillation plant (2) in the form of a heated horizontal pipe with an internal screw conveyor. In accordance with the invention, the thermal energy obtained in conjunction with the distillation is utilized in order to perform the distillation, whereby no thermal energy other than the ...

An improved method and device for securely inserting a tubular element (30) into a through-aperture (40) in a flexible wall (60) accessible from one side only. The tubular element has a retainer (31, 32) projecting transversely at each end thereof, said retainer being resiliently foldable towards the axis of said tubular element. The element is inserted into a loading tube (11), wherein the retain...