Dimethyl carbonate and methyl tert-butyl ether are prepared by a continuous integrated process comprising: a) feeding methanol, carbon monoxide and oxygen into a reaction environment maintained under methanol oxidative carbonylation conditions, to form a liquid reaction mixture containing dimethyl carbonate and unaltered methanol; b) at least partly eliminating the water from the reaction mixtur...

PROBLEM TO BE SOLVED: To immobilize a radioactive substance in reactor water without increasing a manufacturing cost by forming an oxide film on the outer surface of a cladding tube under conditions where a specific DC voltage is applied in the electrolyte of neutral salt. SOLUTION: A metal frame 13 where a plurality of cladding tubes 1 are arranged is suspended in a conductive anode oxide bath 10...

Device and method for three-dimensional measurements and observation of a surface layer of a thin-film structure, comprising a monitoring unit 4 which includes a video camera 12, a wide-beam illumination source 14, a narrow-beam illumination source, 20, an operation and control unit and a table for horizontal movement. The device comprises a Wollaston prism 24 arranged on the optical path of the n...

Compounds of the formula and pharmaceutical compositions comprising them, wherein R<1>, R<2>, R<3>, W, X and Z are as defined below. The compounds are inhibitors of 5-lipoxygenase enzyme and antagonists of Ieukotriene B4, leukotriene C4, leukotriene D4 and leukotriene E4.

An apparatus and method of lighting which produces light of a highly controlled nature and which makes sufficient use of the light including a light source (82), a primary reflector (94) placed directly at or near the light source (82) and a secondary reflector (70) which receives light from light source (82) and from the primary reflector (94) and directs it to a target area.

PCT No. PCT/EP94/02135 Sec. 371 Date Dec. 17, 1996 Sec. 102(e) Date Dec. 17, 1996 PCT Filed Jun. 30, 1994 PCT Pub. No. WO96/00945 PCT Pub. Date Jan. 11, 1996The building, maintenance, and use of a database is described having a trie-like structure for storing entries and retrieving an at least partial match, preferably the longest partial match, or all partial matches of a search argument (input k...

A briquette is made up of powdered coal (400-500 portions in weight), life garbage (500-600), adhesive (50-100) and additive (3-8). It is suitable for different chain-type boilers. Its advantages arelow cost, good ventilating performance and full combustion.

PCT No. PCT/GB95/01439 Sec. 371 Date Dec. 4, 1996 Sec. 102(e) Date Dec. 4, 1996 PCT Filed Jun. 19, 1995 PCT Pub. No. WO95/35399 PCT Pub. Date Dec. 28, 1995The fibrillation tendency of solvent-spun fiber can be increased by subjecting the fiber to a treatment which reduces its degree of polymerisation by about 200 units or more. Suitable methods of treatment include severe bleaching, for example ap...

A computer-based media data processor for controlling transmission of digitized media data in a packet switching network. When the processor receives a request from a network client node for presentation of specified media data stream presentation unit sequences the processor in response retrieves media data from a corresponding media access location, determines the media data type of each present...

A liquid ejecting method for ejecting liquid by generation of a bubble includes preparing a head comprising an ejection outlet for ejecting the liquid, a bubble generation region for generating the bubble in the liquid, a movable member disposed faced to the bubble generation region and displaceable between a first position and a second position further from the bubble generation region than the f...

PCT No. PCT/EP95/01978 Sec. 371 Date Mar. 18, 1997 Sec. 102(e) Date Mar. 18, 1997 PCT Filed May 24, 1995 PCT Pub. No. WO96/09915 PCT Pub. Date Apr. 4, 1996A tool for a mechanical surface treatment of an object by friction is disclosed. The tool is cut to a desired shape and size from a processed fleece of fibers. The fleece is produced by exclusively mechanical processes as a flexible random-fiber...

A data transmission method quickly and reliably transmits data (e.g., a file) from a source to one or more recipients over a communications link. The method includes transmitting the data, which are in the form of a plurality of frames, from the source over the link to one or more of the recipients until all of the plurality of frames have been transmitted over the link. While the data are being t...

The vehicle comprises a rigid frame 1, two rear wheels 2 and a steerable front wheel mounted in forks 4, the steering motion being generated and transmitted to the forks by a tilting foot-plate 3 and rigid bars 5 and levers 6.

A semiconductor device having an interconnecting circuit board comprises an island (20) formed in a predetermined plane, a semiconductor chip (21) disposed on the island (20) and having a plurality of electrically connecting electrode pads (22), an interconnecting circuit board (23) disposed on the semiconductor chip (20) and having an electrically conductive pattern (27), a plurality of inner lea...

The invention provides bioprosthetic implants from which the lipids have been removed by treatment with enzymes which degrade lipids, and methods of making and using the same. The enzymes include lipases and phospholipases. The removal of lipids from the bioprosthetic implants according to the present invention decreases the calcification of the bioprosthesis. The bioprosthetic implants preferably...

A method for treating fixed biological tissue inhibits calcification of the biological tissue following implantation thereof in a mammalian body. The method includes placing the biological tissue in contact with glutaraldehyde and then heating the glutaraldehyde. Alternatively, methods other than heating (e.g., chemical or mechanical means), for effecting polymerization of the glutaraldehyde may a...

Method for polishing a semiconductor wafer (12) including the steps of mounting a first face (22) of the wafer (12) on a polishing block (14), attaching the polishing block (14) to a wafer polisher (16) such that a second face (24) of the wafer (12) is exposed to a polishing pad (19) of the wafer polisher (16) for polishing the second face (24) of the wafer (12), polishing the exposed second face ...