Other

Durand Limited

Wata-wall Ltd.

William Nevil Heaton Johnson

Nicholas John Phillips

Charles Joseph Banks

Martin Davies

Alan Herd

Jonathan Michael Blackledge

A flood defense or water-retaining devicecomprises a hollow body of an elastomeric material having formationsat opposite ends for sealing engagement with complementary formations on adjoining flood defense devices and having complementary formationson upper and lower sides for sealing engagement with complementary formations on lower and upper sides respectively of any similar devices disposed respectively above and below the first-mentioned device. The devicehas at least one filling openingthrough which water can be passed into the interior of the device to fill the same.

Flood barrier or the like and method of using the same

Anti-counterfeiting marking for documents, which marking may be disguised as an incidental or artistic feature of overall marking on the documents is adapted to be read by a complementary reading device. In one embodiment the marking may be a one, two or three-dimensional statistically fractal marking and is representative of an array of digits in which the value of each digit is represented by the fractal dimensions over a corresponding region or set of regions of the document bearing the marking. Corresponding apparatus for reading the anti-corresponding marking is also provided.

Anti-counterfeiting and diffusive screens

A biological process is enhanced by a method and apparatus used to contact a biomass with a gas and with a nutrient liquid. A resiliently compressible porous matrix system containing the biomass is mounted in a reaction vessel containing a body of the nutrient liquid and a body of the gas above the body of the liquid. The body of liquid having an upper surface exposed to the body of gas and defining a liquid-gas interface. The resiliently compressible porous matrix system is located in a position in the reaction vessel so that compressible porous matrix system is partly immersed in the nutrient liquid and partly extends above the upper surface of the liquid into the body of gas. The mounting of the porous matrix system is used to rotate the system about a substantially horizontal axis such that a member or the location of the rotational axis relative to the reaction vessel acts on compressible porous matrix system causing periodic compression and expansion of regions of the porous matrix system without significant loss to the biomass.

Methods and apparatus for enhancement of mass transfer of a fluid in a porous matrix system containing biomass

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St. Peter Port, United Kingdom

William Nevil Heaton Johnson