The invention relates to a process for the preparation of porous bone replacement materials which have a partly or completely interconnecting pore system with a volume content of 5 to 60%. The bone replacement material is composed of a solid component and a liquid component based on acrylate/methacrylate, and coarseparticled granules of a biocompatible material with a largest particle diameter of ...

Biocompatible compositions comprising polyanionic polysaccharides combined with hydrophobic bioabsorbable polymers as well as methods for making and using the compositions are described.

A process for immobilizing viable cells in gelled carrageenan beads comprises preparing an aqueous phase that is a mixture of a gellable concentration of un-gelled carrageenan, in an aqueous suspension of viable cells, in which the mixture's potassium concentration is low enough that the thermogellation temperature of the carrageenan in the suspension is below a temperature to which the viable cel...

Game device, comprising a central support element and elements having a keypad, for example, of the type available on a normal telephone set, on which the player makes up sequences of numbers or symbols such as those appearing on the keypad itself, which allow him to access the various phases of the game, and comprising a loudspeaker. Each element with keypad can communicate and exchange data with...

Optical components are described, in silicon oxide and/or other mixed metallic oxides having dimensional precision which has a tolerance of surface roughness and profilometric accuracy within the specifications described for visible and ultraviolet spectrum ranges. The above manufactured articles have "final" or "almost final" dimensions as they are obtained by the isotropic dimensional reduction ...

Process for determining the stability of asphaltenes in live oil which comprises: a) experimental determination of the flocculation threshold of asphaltenes in the corresponding dead oil by titration with aliphatic hydrocarbons, b) determination of the physical and chemical parameters δ a, δ o and Φ a through a thermodynamic model, c) use of the parameters so determined to predict the stabilit...

This invention relates to a new zeolite material having a composition in the calcined anhydrous state expressed as molar ratio between the oxides corresponding to the following formula m M2/nO . Al2O3 x SiO2 and relates to a process for the preparation of this material.

Antiforgery label with protected retroreflective element formed by: a flattened tear-resistant felt or fabric support with graphics identifying the product on at least one side; a permanent adhesive film laminated to the graphics side of the support; an authenticating retroreflective element placed on a first portion of the adhesive film surround by a second portion of adhesive film in the form of...

A first-use security seal for credit cards (1) and the like formed from a sheet of resistant plastics material, preferably polyester, having dimensions substantially equal to those of a credit card, comprising a central strip (6) which is coated on one face with metallic ink (16) as an electromagnetic shield and two contiguous strips (5,7) with adhesive (8) applied to the coated side of the sheet,...

The present invention refers to a method and an apparatus for removing heat-temper adhesive labels from the inner shell of spent yarn reel cops. The method consists in subjecting the inner shell of the cop to a flow of hot air, at least at the label being removed, and applying an aspiration from the inside of the cop to the outside to bring about the detachment and removal of the label from the co...

The present invention refers to an apparatus for removal of the reserve yarn from spent yarn reel cops, comprising: means of grabbing a cop to be subjected to cleaning and means of removal of the reserve yarn that operate on command on the outer shell of the cop at the reserve zone, situated near one axial end of the cop. The means of removal are able to interfere with the yarn situated in the res...

A carbonate fuel cell matrix comprising support particles and crack attenuator particles which are made platelet in shape to increase the resistance of the matrix to through cracking. Also disclosed is a matrix having porous crack attenuator particles and a matrix whose crack attenuator particles have a thermal coefficient of expansion which is significantly different from that of the support part...

The present invention provides a two-step catalyst system for purifying exhaust gases containing reductive component comprising hydrocarbon, nitrogen oxides and excess amount of oxygen than the stoichiometrical amount to perfectly oxidize all the reduction component, said catalyst system comprises placing a hydrocarbon oxidization catalyst having high perfect oxidation activity of hydrocarbon at t...

A system for removing heat and contaminants from hot gases containing impurities, especially exhaust gases from a burner, comprises at least one channel (8, 21), component (9) for forcing the hot gases to flow through the channels, nozzle (13) for spraying liquid into the channels, and contact surfaces extending over the channel cross-sections to create contact between the hot gases and liquid. Th...

Appts. for removing heat and impurities from hot contaminated gases, esp. flue gases from boilers, comprises: (A) at least 1 channel (8,21) contg. one or more columns (8) located in a vessel whose base region (4) collects the liq. passing through (D), with one channel (6) passing the hot gases into the base region and through the liq., releasing the gases into the column above the liq. surface (15...

The lock arrangement (80) comprises two lock or stop jaws (81, 82), with intermediate springs pressing the jaws away from each other towards a locking position. It has an upper and a lower stirrup arrangement (88, 89) which on moving towards each other move the lock jaws from a locking to a freeing position. The lock jaws, on deactivation of the lock function, move towards one another and somewhat...

A method is provided for forming a component used in hot waste gas exhaust systems, such as for automotive catalytic converters (10), including selecting an alloyed steel sheet, such as stainless steel, forming the component, coating with aluminum by thermally decomposing a gaseous mixture comprising an aluminum-bearing compound, such as triethyl aluminum and trimethyl aluminum, and a carrier gas,...

A method is provided for forming a component used in hot waste gas exhaust systems, such as for automotive catalytic converters, including selecting an alloyed steel sheet, such as stainless steel, forming the component, coating with aluminum by thermally decomposing a gaseous mixture comprising an aluminumbearing compound, such as triethyl aluminum and trimenthyl aluminum, and a carrier gas, such...

A thunderstorm cell detection and mapping system including means for acquiring lightning strike information relating to locations of respective lightning strikes, and means for identifying and locating active thunderstorm cells based on the lightning strike information.