Abstract: The invention relates to foam inhibitors comprising(1) (A) a reaction product of a polyol, an anhydride of an aliphatic C.sub.2 -C.sub.10 dicarboxylic acid and an adduct of a polyalkylene glycol and a fatty acid, or (B) a reaction product of a polyol, an anhydride of an aliphatic C.sub.2 -C.sub.10 dicarboxylic acid, a higher aliphatic alcohol and a polyethylene glycol,(2) a dialkyl ester of an unsaturated dicarboxylic acid,(3) a mineral oil,(4) a nonionic emulsifier,(5) an anionic emulsifier, and(6) an alkylene diamide,to liquid formulations of such foam inhibitors, and to a process for defoaming aqueous systems with the aid thereof.

Abstract: A method of suppressing the formation of contrails from the exhaust of an engine including the steps of providing a solution of a non-corrosive surfactant in a combined carrier and nucleating agent selected from the group of water soluble monohydric, dihydric, trihydric or other polyhydric alcohols, forming the solution into a vapor, and injecting the solution into the exhaust of the engine. The solution may include by weight between about 0.01% to 2.5% of the non-corrosive surfactant, between about 1% and 8% water, and between about 85% and 99% ethylene glycol. Another solution may include by weight a monohydric, dihydric or polyhydric alcohol in an amount of between about 85% and 99% and the non-corrosive surfactant in an amount of between about 0.01% and 8%. Still another solution may include an inorganic nucleating or hygroscopic salt, such as ammonium iodide, ammonium fluoride, silver iodide or calcium chloride in monohydric, dihydric or polyhydric alcohols and surfactant mixtures.

Abstract: The zirconium 91 isotope is separated from zirconium by a photo-assisted extraction process wherein a first solution is formed of a first solvent, scavenger and zirconium compound, which compound reacts with the scavenger when exposed to light, and while irradiating the first solution to form a zirconium reaction product, contacting the same with a second solvent that is immiscible with the first solvent and is a preferential solvent for the zirconium reaction product, with the reaction product transferred to the second solution, and the two solutions then separated. An acidic aqueous media is preferred as the first solvent, with excess acid used to provide anions that act as the scavenger.

Abstract: An improved gun/magazine system which is top loading and wherein the magazine is of generally cylindrical configuration. A spiral drive of the cartridges through the magazine into the top loading receiver of the gun is provided. The magazine includes a spring/winder having a silent clutch which permits tensioning of the drive spring at any time and even immediately before use, and which has a release means in order to permit relaxing of the spring in the event the unprecedented large capacity of cartridges is not entirely expended from the magazine. The cylindrical shaped magazine is mounted above, parallel to, and closely adjacent to the axis of the gun.

Abstract: For preparing a chromium metal powder lacking in oxygen and having an average particle size not greater than 20 .mu.m, a mixture of chromium oxide and calcium oxide, in a molar ratio of 1:0.5 to 1:2, is calcined initially at temperatures of 650.degree. to 1,200.degree. C. with access of oxygen up to a weight increase of 1 to 6 g per mole of chromium oxide, the calcined product is comminuted to a particle size not greater than 100 .mu.m and the product so obtained is reduced calciothermally. The calcium oxide can be replaced wholly or partially by calcium carbonate.

Abstract: A surfactant composition comprising from about 30 to about 50% by weight of a sulfated alkoxylated alcohol, an effective amount of an alkyl aryl sulfonate and an effective amount of a water soluble salt of a divalent acid, the composition being flowable or pumpable at normal handling temperatures.

Abstract: A material for gas separation which consists essentially of (A) a cobalt salt; and (B) amine compound and/or its derivatives containing therein a unit structure to be represented by the following general formula: --NHCH.sub.2 CH.sub.2 CH.sub.2).sub.n [where: n is an integer of 2 or more], wherein the components (A) and (B) are brought into mutual contact to produce the material for gas separation.

Abstract: A process for selectively forming nitrohydrocarbon compounds by contacting, at elevated temperature and pressure and in a homogeneous gas phase, an olefinic unsaturated compound having at least three carbon atoms with NO.sub.2 alone or in the presence of oxygen and/or water.

Abstract: A radiolabeled long chain fatty acid for heart imaging that has dimethyl branching at one of the carbons of the chain which inhibits the extent to which oxidation can occur. The closer to the carboxyl the branching is positioned, the more limited the oxidation, thereby resulting in prolonged retention of the radiolabeled compound in the heart.

Abstract: A device for feeding and loading a weapon with ammunitions in any direction and any elevation comprising at least one vertical rotatable magazine (20) disposed laterally of the breech (3) of the weapon (2) and formed by an endless cylinder comprising tubular receptacles (22) for the storage of the ammunitions (9), a carrier connected to the weapon (2) for taking up and transferring the ammunitions (9) between the rotatable magazine and the weapon, and a control system (7-8) controlling the position of the receptacles (22) of the cylinder in accordance with the angular position in elevation of the weapon and with the type of ammunitions. The invention is more particularly applicable to light armored cars.

Abstract: An infrared absorbent comprising a metal complex compound prepared by coordinating two thiorato bidentate ligands to a center metal and neutralizing a complex ion with a cation. With use of the infrared absorbent, there is provided an infrared absorbing material capable of absorbing a far-infrared or near-infrared light having a wavelength of 700-1500 nm which has a high transmittance of a visible light and a good fastness to heat and light. The infrared absorbing material can be used for an infrared absorbing material such as an optical filter or other various objects.

Abstract: A sealed glass tube has a gaseous filling which when subjected to high voltage produces a radiation of energy through the tube. An elongated electrical conductor is mounted lengthwise in the tube and subjects the gaseous filling to high voltage to provide electrical communication with the exterior of the tube and form ozone with an encircling perforated metal grid. The tube is supported within the grid by spacers secured to internally facing valleys of the fluted grid. The flutes of the grid extend fully from one end to the other to provide maximum output. In a preferred form of the invention, the rearward end of the conductor is slidably supported to for expansion and contraction. Also, the conductor includes an auxiliary portion extending through and having sealed relation with one end of the tube, the auxiliary portion having a wound connection to the conductor.

Abstract: A class of radiolabeled compounds to be used in tissue imaging that exhibits rapid brain uptake, good brain:blood radioactivity ratios, and long retention times. The imaging agents are more specifically radioiodinated aromatic amines attached to dihydropyridine carriers, that exhibit heart as well as brain specificity. In addition to the radiolabeled compounds, classes of compounds are also described that are used as precursors and intermediates in the preparation of the imaging agents.

Abstract: The invention relates to a process for the conditioning of radioactive or toxic waste in epoxy resins and a polymerizable mixture with two liquid constituents usable in this process.This process consists of incorporating the waste into a polymerizable mixture incorporating at least one epoxy resin, pitch and at least one epoxy resin hardener and allowing the thus obtained mixture to harden.Generally the mixture comprises at least 50% by pitch weight and can be used for treating radioactive waste constituted by large objects and organic liquids.

Abstract: An ultrasonic cleaning device for a venturi flow nozzle in a pipe in a fluid system which includes one more transducer assemblies for generating and transmitting sound waves to the nozzle to effect a cleaning action.

Abstract: A process for controlling foaming in highly acidic aqueous system using a silicone foam control agent is disclosed. The foam control agent consists essentially of (A) a dimethylpolysiloxane gum having a viscosity greater than about 150,000 Poise at 25.degree. C., (B) a non-ionic surfactant, (C) a siloxane copolymer dispersing agent and, optionally, (D) water.

Abstract: A top nozzle adapter plate for use in a fuel assembly of a nuclear reactor includes an upper structural component and a lower functional component supported from the upper component. The fuel assembly has elongated structural members and fuel rods disposed in a predetermined array. The upper structural component of the adapter plate includes spaced and interconnected hubs and ligaments arranged to define substantial open areas for coolant flow therethrough while providing a rigid framework capable of transmitting lifting loads imposed by the fuel assembly. The hubs are connected to the elongated structural members of the fuel assembly.

Abstract: Methods of tracking cells in vivo and for determining in vivo cell lifetimes. Cells are labelled with cyanine dyes and detection is by measuring fluorescence, absorbance, or by detecting nuclear magnetic resonance probes included in the cyanine dyes. Using the invented methods, for example, red blood cell and platelet lifetimes are determined. Also, cells are tracked to determine sites of primary or metastatic tumors, or sites of occult infection. Further, rates at which cells pass through vessels is used to determine blood vessel patency and platelet aggregation.

Abstract: A cleaning apparatus for atomic reactor control rod driving means (CRD) comprises a water tub for washing a CRD, rails laid within the water tub, a truck for loading the CRD installed on the rails, a CRD clamp unit mounted on the truck having means for rotating the CRD in the circumferential direction as well as for clamping the CRD, a CRD disassembling and assembling grapple unit installed within the water tub to clamp the CRD and move the same sideways, an outer-surface washing nozzle for washing an outer tube surface and strainer of the CRD, a lance installed within the water tub, which is insertable into the tubes of the CRD and which is equipped with a nozzle assembly to spray the washing water onto the inner surface of the tubes, a filter washing nozzle unit installed within the water tub to spray the washing water onto a cylindrical filter of the CRD, a washing-water circulating pipe connected to the water tub, and a filter unit provided on a portion of the pipe, to filter the washing water.

Abstract: A process for preparation of chlorosulfonyl thiophene compounds comprising contacting a thiophenamine with sodium or potassium nitrite to produce a diazonium salt, then contacting said salt with sulfur dioxide and cuprous or cupric chloride, or bromide. Addition of gaseous HCl, concentrated H.sub.2 SO.sub.4, or oleum to the diazotization mixture enhances yield.