Abstract: Testing the production of semiconductor elements on a substrate, the semiconductor elements having a plurality of cell types, by providing at least one test structure on the substrate with a number of test cells having cell types similar to one or more of the plurality of cell types, each of the cell types having at least a first and a second local interconnect layer structure to be connected to predetermined supply voltages during use, a plurality of first and second polysilicon layer structures to provide control voltages to first and second electronic component structures, respectively, connecting in the test structure all of the plurality of first polysilicon layer structures to one another to provide an interconnected first polysilicon layer structure, and connecting in the test structure all of the plurality of second polysilicon layer structures to one another to provide an interconnected second polysilicon layer structure, providing predetermined test voltages and measuring currents resulting from the

Abstract: A processor based system includes a parser, configured for identifying whether an input word received from a user is a new command word relative to a character-based command parse tree, and a tree management process configured for managing the character-based command parse tree. The character-based command parse tree includes multiple element levels for respective character positions for each known command word, and at least one character element at each level. Each character element specifies at least one corresponding character component and a corresponding at least one index value.

Abstract: A processor based system includes a parser, configured for identifying whether an input word received from a user is a new command word relative to a character-based command parse tree, and a tree management process configured for managing the character-based command parse tree. The character-based command parse tree includes multiple element levels for respective character positions for each known command word, and at least one character element at each level. Each character element specifies at least one corresponding character component and a corresponding at least one index value.

Abstract: A method of transporting and/or storing pure acrylic acid comprises ensuring by means of appropriate measures that the pure acrylic acid is partly crystalline during the entire duration of transport and/or storage.

Abstract: A method of transporting and/or storing pure acrylic acid comprises ensuring by means of appropriate measures that the pure acrylic acid is partly crystalline during the entire duration of transport and/or storage.

Abstract: The invention relates to a method of making glass-ceramic plates which are bent at a radius of curvature especially suitable in the manufacture of cooking plates.

Abstract: The invention relates to a method of making glass-ceramic plates which are bent at a radius of curvature especially suitable in the manufacture of cooking plates.

Abstract: The present invention relates a head for a spot welding apparatus or a setting apparatus comprising an electrode (2) for to supplying a welding current or setting current to a piece (3) to be welded to another piece (4) or to set and also, to exert, during the welding operation or setting operation, an axial force (F) on said piece (3). The head has an electromagnet (8) for transmitting the axial force (F) to the electrode (2).

Abstract: A process measures the temperature of the space between one or more pieces that are subject to a rising temperature during a welding or a setting operation. Thermoelectric sources are used to form at least one of the interfaces placed between at least one electrode (5; 10,11) and the pieces (1; 13, 14) and between the pieces, to supply thermoelectricity by an electric resistance (16), to measure the current that flows through resistance (16).

Abstract: The force (F) is derived from one or several electromagnetic forces each one of which is developed by the effect of a current (I.sub.s, I.sub.B) that circulates through a conductor (8) buried within a magnetic field.

Abstract: The present invention relates to a process for controlling the parameters of a welding operation performed by a spot-welding machine. The machine has two movable electrodes which are connected to a source of current that supplies a welding current. The process controls the welding parameters on the basis of at least one electric signal that is a function of the temperature in the welding zone. The electrical signal or signals are taken between the terminal of one of the electrodes (10, or 20) and one of the parts to be welded (30, 40). The electrode and part together constitute a thermocouple.

Abstract: This invention concerns the production of very deep boreholes. A rotary drilling tool is suspended at one end of a very long line of supporting elements such as a cable. During at least the entire duration of the drilling operation, the borehole is filled at least partly with at least one substance which remains in a liquid state and has a density greater than the mean density of the drilled ground strata. Thus any infiltrations in the borehole and the drilling debris move naturally upwards to the free surface of the liquid substance filling the borehole.

Abstract: A protective cover assembly for an outlet opening of an underfloor access housing is provided to prevent ingress through the outlet opening of a subsequently poured layer of floor fill, such as concrete. The assembly comprises a cup-shaped cap having a fence-like vertical extension detachably connected thereto. The assembly is enveloped by the floor fill and has an upper peripheral edge spaced below the upper surface of the floor fill by up to 1 inch (25.4 mm). A release coating interposed between the protective cover assembly and the floor fill facilitates breakout and removal of the overlying layer of floor fill.

Abstract: Free radical polymerizations are immediately terminated by adding a phenothiazine-containing solution whose solvent comprises at least 50% of its weight of an N-alkylpyrrolidone.