Abstract: Disclosed are 1,2,3,4,5,6,7,8-octohydro-9-phenylacetamidoacridine and the salt thereof, as well as the preparation method and medical use thereof. The compound can be useful for the preparation of medicaments for treating cardiovascular diseases, especially arrhythmia.

Abstract: A semiconductor manufacturing apparatus comprising an integrated measuring instrument for measuring the form or size of the element to be formed into a wafer, an etching unit for etching the wafer by making use of plasma generated under reduced pressure, an ashing unit for ashing the etched wafer, a wetting unit for wetting the etched wafer, a drying unit for drying the wafer which has gone through the wetting treatment, a transport means whereby the wafers housed in a wafer cassette are transported one by one successively to said metrology and each treating unit, and a transport chamber provided with a wafer cassette inlet for receiving a cassette containing sheets of wafer to be etched, in which said metrology, etching unit, ashing unit, wetting unit, drying unit and transport means are connected by a depressurizable transport passage.

Abstract: A high speed, low cost real time graphic image printing system includes a host data processing system, a laser printer having a plug connector for receiving a font cartridge storing information defining an image of a printable character, and a cartridge pluggably connected to the font cartridge plug connector. A first communication path carries print commands from the host to the printer while a second communication path carries image defining information between the host and the data store. In operation the host writes information defining a portion of an image to be printed into a portion of the data store corresponding to a selected character and then commands the printing of the selected character. A ping-pong double buffer arrangement allows the host to write a next image portion while information defining a current image portion is read by the printer to form a print image.

Abstract: A high speed, low cost real time graphic image printing system includes a host data processing system, a laser printer having a font cartridge port, a font cartridge that is writable in real time by the host to facilitate high speed printing of graphic images and an expander cartridge. The expander cartridge plugs into the printer font cartridge port and in turn provides ports for pluggably receiving both a read only font cartridge and a real time font cartridge that is writable by the host. The expander cartridge serves as a multiplexer to couple a selected one of the two font cartridges to the printer.

Abstract: A reinforcement structure for asphalt pavements comprising corrugated or zigzag bent perforated or open mesh strips disposed relative to each other so that when said strips are brought into contact with each other and fixed together at the apices the contacting strips define therebetween a plurality of cells or honeycomb-like structure. Further, there is provided a superior asphalt pavement when the above-described reinforcement structure is positioned and embedded within said pavement.

Abstract: A method for enhancing recovery of oil from wells by introducing into an oil-bearing formation the reaction products obtained by reacting silicon metal, alkali metalhydroxide and at least one organic di-, tri- or tetramine in an aqueous medium. The products of said reaction are also claimed.

Abstract: Fragmented old asphaltic concrete or the like is recycled into new hot-mix by temporarily separating larger pieces from the smaller fragments, generating heat internally within the large pieces with penetrating microwave energy, separately heating the smaller fragments by exposure to hot gas, and then recombining and remixing the separately heated components. The old concrete can be heated very rapidly, highly uniformly and economically while avoiding asphalt degradation and pollution problems that can be caused by exposure to extreme high temperature and while avoiding the relatively high costs of heating the entire volume with microwave energy.