A compensating multi layer material includes two compensating layers adjacent to one another. A multi-layer embodiment of the invention produces subwavelength near-field focusing, but mitigates the thickness and loss limitations of the isotropic "perfect lens". An antenna substrate comprises an indefinite material.

A transportable container for particulate solid material and receiving means for the container which is adapted to removably receive the container and which is capable of being actuated to promote flow of material from the container.

A luminous material comprising a rubber, glass or plastics material matrix. A luminescent material is dispersed throughout the matrix, and a colorant dispersed throughout the matrix. The colourant gives the matrix a colour when it is observed under substantially white light, and the colourant allowing substantial transmission of light emitted by the luminous material.

The present invention concerns improved osteoinductive materials comprising matrix materials and morphogenetic roteins, wherein depending on the subject matter the proteins may be dimeric or monomeric proteins. The osteoinductive materials according to the present invention have improved properties. The invention further concerns methods for producing the respective improved osteoinductive materials.

A ceramic material includes at least 90% of a single phase silicon aluminum oxynitrite having the general formula: where z is greater than 0 and less than or equal to 5. One method of producing the ceramic material involves sintering a mixture including not more than 75% by weight of high active surface area alumina powder of particle size less than 10 microns and silicon nitride powder of particle size less than 20 microns. In another method of producing the ceramic material, a mixture of silic...

Disclosed is a process for treating a travelling film made from a molecularly-orientable synthetic thermoplastic organic polymer, according to which the film while in an unoriented condition and a molten deformable state has at least one of its sides modified so as to have a homogeneous series of high frequency discrete protuberances or depressions. This is achieved by subjecting the film to the action of an appropriately contoured surface. The frequency is at least of the order of 100 per inch....

Unexpanded structural honeycomb material formed of permanently creasable material is extended in its expansion direction and compressed perpendicular to the expansion direction, e.g. between pressure rollers, so that the cells adopt a configuration in which they have dimensions in the expansion direction which are large compared with their dimensions in the direction of compression and the creasable material is creased. On subsequently being allowed to expand, the material adopts a self-sustaini...

Puffed barley is used alone or with tobacco to provide smoking materials.

Puffed oats are used alone or with tobacco to provide smoking materials.

A fibrous structure, for example, a batt, mat, blanket, felt, cloth, paper or board, comprising staple fibers of polycrystalline alumina, alumina/silica, or zirconia having an average diameter of 0.5 to 5 microns, not greater than 20% by number of the fibers having a diameter greater than 5 microns and the shot content of the fibers being less than 5% by weight.