Abstract: Alkaline compositions useful to form aqueous paint stripping solutions are disclosed which comprise mixtures of an alkali metal hydroxide, a polyoxyalkylene polyamine accelerator and, optionally, a glycol or glycol ether accelerator.

Abstract: Alkaline compositions useful to form aqueous paint stripping solutions are disclosed which comprise mixtures of an alkali metal hydroxide, a polyoxyalkylene polyamine accelerator and, optionally, a glycol or glycol ether accelerator.

Abstract: Impure silicon, in relatively thin sheet form is purified by heating it in the presence of a strong electric field to ionize and remove impurity elements. Ion bombardment may be used to dislodge impurities accumulating on the surface of the sheet.

Abstract: This invention relates to a method of preparation of a babesiosis vaccine which involves treating a suspension of Babesia infected erythrocytes. The erythrocytes are disintegrated, separated into soluble and insoluble fractions and subsequently fibrinogen and contaminated Babesia antigen is removed from the soluble fraction. The residual soluble fraction is then combined with an adjuvant to form the babesiosis vaccine. The invention also includes within its scope a vaccine derived from the abovementioned method and a method of administration of the vaccine to cattle.

Abstract: Signal processing circuitry, preferably for use in multiplying two input signals, one at RF frequency and one at baseband frequency, which includes at least a basic four branch bridge circuit having a diode connected in each branch in a generally symmetrical four branch circuit configuration using a single bias supply and including a trimming resistor in at least one branch for controlling the current through the diodes in such branch so that the characteristics of the diodes in all branches can be matched over substantially the complete range of control current values therefor.

Abstract: Slag buildup in high-temperature areas of a furnace system is minimized by adding to the molten ash particles carried by the flue gas a conditioner which is taken up by those molten particles and produces a nucleating effect when those particles cool, causing them to solidify more rapidly, thereby preventing deposit formation or resulting in considerably more friable deposits.

Abstract: Signal processing circuitry, preferably for use in multiplying two input signals, one at RF frequency and one at base-band frequency, which includes a pair of PIN diodes connected in a generally symmetrical circuit configuration using a single bias supply and including a trimming resistor for controlling the current through a selected one of the diodes so that the characteristics of both diodes can be matched over substantially the complete range of control current values therefor. Further, the circuit configuration permits the use of an easy and effective technique for compensating for temperature changes of the circuit during operation.

Abstract: The collection characteristics of particles entrained in a particle-laden gas for separation by the commonly used methods for removing particles from a gas stream are improved by injecting into the gas stream a conditioning agent comprising diammonium phosphate and urea. The conditioning agent can be added to the gas stream either at low temperatures or at high temperatures, in both cases giving rise to significant improvements in emission characteristics. The additive of the present invention has a very significant advantage over prior art additives of substantially equal emission improvement characteristics of greatly reducing or substantially eliminating buildup of hard-to-remove deposits.

Abstract: An improved system for generating an ion beam comprises a nozzle through which a gas to be ionized is fed, and a ring electrode encircling the tip of the nozzle. High positive potential and negative potential are applied to the nozzle and ring electrode, respectively, to create a high intensity electric field. The gas atoms passing through the capillary nozzle are ionized, and the ions so created are accelerated in a direction forwardly from the nozzle by the field. The current level or "brightness" of the ion beam so generated may be controlled by varying the pressure of the gas supplied to the nozzle, or the electrical potential difference applied between the nozzle and ring electrode.

Abstract: An improved high speed digital communications diversity receiver using a forward adaptive transversal filter equalizer, having a plurality of weighting sections in each diversity channel to provide a combined weighting signal, wherein the required complex multiplications and correlations needed for weighting purposes are performed at IF frequencies, while the time-delayed combining operations for providing the desired combined weighted output signal are performed at baseband frequencies. Such an arrangement reduces the number of tapped delay lines normally needed for such transversal filter equalizer operation and further reduces the signal losses incurred in operating delay line devices at intermediate frequencies so that fewer large gain-bandwidth product amplifiers are required in the system than the number required in previously available systems using such forward transversal filter equalizers.

Abstract: Amorphous or microcrystalline alloy powder is prepared by the rapid quenching of ultrafine metallic spheroids generated from the molten metal state. The molten metal droplets are formed when an intense electric field (10.sup.5 V/cm) is applied to the surface of liquid metal held in a suitable container. The interactions between the intense electric field and liquid surface tension disrupts the metal surface, resulting in a beam of positively charged droplets. The liquid metal spheres generated by this electrohydrodynamic process are subsequently cooled by radiative heat transfer. Rapid cooling of the droplets may be accomplished by heat transfer to a low pressure gas by free molecular heat conductivity. Quenching rates exceeding 10.sup.6 .degree.K./sec are possible using this technique. Thin film coatings are prepared by electrohydrodynamically spraying a beam of charged droplets against a target (substrate). The target can be electrically controlled to effect the charged particles impact.

Abstract: Apparatus and method for separating materials, particularly isotopes of heavy metals. An electrohydrodynamic source of positive ions directed in a beam to a transverse magnetic field which deflects the ions along paths which carry the different mass ions to different collectors. An ion source incorporating a container for molten material, a pressure system for delivering the liquid material to a capillary tube, and a high voltage power supply providing an intense electrostatic field at the tube end for producing ions by field emission.

Abstract: A mail handling system and apparatus accepts randomly arranged mail, determines the location of postage indicia on individual pieces and feeds the pieces to separate conveyors in response to the determination of indicia location to orient the same and enables combining the conveyed mail pieces so that the indicia thereon appears entirely on one edge. Feed rollers singulate and feed randomly stacked mail past indicia detectors to a positionable chute-like receptacle which is positioned in response to the detection to eject and direct mail pieces to separate conveyors depending upon whether indicia is present adjacent the right or left edge of the piece as it is presented. The conveyors unite to provide a mail output stream with all indicia either adjacent the leading or trailing edge of the moving piece.