Abstract: A system and method for treating wastewater containing industrial esters collected from grease traps at food establishments, septic tanks or from sludge digesters by increasing the pH of the wastewater to break down the ester. The increased pH wastewater is mixed to a predetermined mean velocity gradient which allows the influent to react. The reacted influent is then stabilized to lower the pH to normal levels suitable for input into a municipal wastewater treatment facility. Volatile gases are drawn off from all of the reactor tanks and placed into a treatment tank. In the tank a reduction of the bacterial and odor level occurs when the wastewater reacts with the chlorine-containing water output of the municipal wastewater treatment facility.

Abstract: A thin platinum film electrodeposited on a conductive tin oxide surface and a process for forming the coating.

Abstract: A prosthesis for cement-free bonding to bone comprising a metal substrate coated with a biologically active glass or glass-ceramic of uniform composition and thermal coefficient of expansion and free of flaws resulting from thermo-mechanical stresses, the glass coating being bonded to the metal substrate by ion diffusion of the interface wherein the thermal coefficients of expansion of the metal substrate and the glass or glass-ceramic coating are substantially different.

Abstract: An improved electrochromic display device in which a thin, optically transparent, electrically conductive layer or film is applied to the electrochromic layer surface which is oriented toward the electrolyte.

Abstract: A process for chemical deposition of a thin platinum coating on a substrate.

Abstract: A polymer suitable for use in affinity chromatography comprising a polymer of an aminimide and a vinyl compound having at least one pendant halo-methyl group and the said polymer wherein an amine ligand which affords sites for binding in affinity chromatography is coupled to the polymer by reaction with a portion of the pendant halo-methyl groups and the remainder of said pendant halo-methyl groups are reacted with an amine containing a pendant hydrophilic group.

Abstract: A glass-ceramic containing Li.sub.2 O, CaO, Al.sub.2 O.sub.3, SiO.sub.2, platinum and Nb.sub.2 O.sub.5 is disclosed. It is highly suitable for use in dental restorations because of its combination of castability, chemical durability and mechanical strength. The aesthetic qualities of natural teeth may be reproduced by proper control of processing parameters, e.g. addition of coloring additives and devitrification heat treatment schedule. Dental restorations may be made by casting a melt in a conventional dental laboratory investment mold, followed by devitrification. Fracture of cast margins is avoided because of the mechanical strength and toughness of the glass-ceramic. Partial restorations can be bonded with dental cement directly to the tooth of a recipient without the need for building the restoration upon an undercoat of metal alloy.

Abstract: A method of bonding a bioglass layer to a metal substrate comprising heating the metal substrate having a roughened, oxidized surface to about a temperature at which the expansion of the metal is substantially equal to that of the bioglass at the temperature above which the thermal expansion of the bioglass is non-linear, immersing the heated metal surface in molten bioglass, the time of immersion being of such duration that the temperature of the metal does not rise substantially above the temperature to which it is heated, allowing the coated substrate to cool whereby the bioglass layer is bonded to the metal substrate by ion diffusion and thermo-mechanical stresses in the bioglass and metal layer are relieved at a substantially equal rate and the product produced by said process.

Abstract: The use of ascorbic acid, erythorbic acid and alkali metal and ammonium salts thereof for treatment of a destructive, widely distributed and rapidly spreading disease of citrus trees known as Young Tree Decline, is disclosed.

Abstract: A gel chromatographic method of fractionating ionic polymer systems comprising passing the system through a gel chromatography bed of ionic polymer wherein the charge on the gel polymer is identical to the charge on the ionic polymer to be fractionated.

Abstract: A wobbling single slit is provided as the entrance slit of a spectrometer which rectilinearly reciprocates at a constant amplitude, such amplitude being selectively adjustable. A control signal is obtained from a circuit that oscillates the slit for controlling the frequency and phase of the ac signal component detected and amplified from the detector after the superposed dc detected signal component is separated from the ac signal component.