Abstract: The invention relates to dental filling materials comprising stainless steel filler, a polymeric binder, and glass filler. Tensile strength, compressive strength, dentinal bonding and enamel bonding of the dental filling materials are improved relative to commericial glass ionomer cements without stainless steel.

Abstract: A two part, integrated melt overflow pouring apparatus including a hearth which contains molten material, and a spout which is stationary with respect to, and transfers the liquid to, a rotating, heat extracting substrate such as a drum. A hinging body such as a cylinder connects the hearth and the spout and allows the hearth to rotate with respect to the spout. A channel is formed in the cylinder and an equal width channel is formed in the spout. The floor of the channel in the hinging body is at a 45.degree. angle with horizontal initially and rotates when the hinging body rotates. The hearth is rotated about the axis of the hinging body, the molten material flows out of the hearth through the channel in the hinging body, through the channel in the spout and solidifies against the drum.

Abstract: There is disclosed a process for preparing carboranyl uridine nucleoside compounds and their diethyl ether adducts, which exhibit a tenfold increase in boron content over prior art boron containing nucleoside compounds. Said carboranyl uridine nucleoside compounds exhibit enhanced lipophilicity and hydrophilic properties adequate to enable solvation in aqueous media for subsequent incorporation of said compounds in methods for boron neutron capture therapy in mammalian tumor cells.

Abstract: The invention relates to the synthesis of ammonia-haloboranes, and in particular, H.sub.3 NBH.sub.2 Cl, which materials are useful for the produciton of amorphous boron nitride and crystalline turbostratic boron nitride by heating.

Abstract: An apparatus is disclosed for abrading contaminants from the surface of a workpiece using plasma glow discharge. The workpieces are positioned in a low pressure chamber with an ionizable gas. A pair of spaced, conductive, interfacing panels form electrodes mounted within the chamber and defining a three-dimensional cleaning space between the electrodes. The electrodes are energized by a power supply, providing an alternating voltage at an ultrasonic frequency and the pressure is maintained to allow only abnormal glow discharge. After initiation of the abnormal glow discharge the electrode current is sensed to detect when to inject additional ionizable gas into the low pressure chamber.

Abstract: The displacement of a Stirling cycle cryocooler is controlled as a function of temperature by controlling the amplitude of the fundamental component of an AC signal which is applied to the motor at its operating frequency. A pulse train is generated, having a frequency which is a harmonic of the operating frequency. The duty cycle of the pulse train is modulated between 50% and 100% as a function of the temperature. The modulated pulse train is applied to the motor during one-half of the load's operating period and the complement of the pulse train is applied to the load during the other half of its operating period. Modulating the duty cycle of the pulse train (and consequently simultaneously of its complement) as a function of temperature variably controls the amplitude of the fundamental component of the drive voltage and therefore variably controls the displacement of the motor and, as a consequence, of the cryocooler piston.

Abstract: A voltage to current converter, voltage multiplier and mixer circuit. At least two differential output, common source, pairs of matched field effect transistors have cross connected drains. Those transistors which do not have their drains connected together have their gates connected together to form a first pair of voltage input nodes. The two cross connections form output nodes providing differential output currents. A pair of impedance transformation, low output impedance, buffer amplifiers have bipolar transistor output stages and a high input field effect transistor input stage. The outputs of the output stages are each respectively connected to a different one of the common sources of the differential connected pairs. The input nodes of the input stages form a second pair of voltage input nodes.

Abstract: A composition for absorbing electromagnetic radiation (such as microwave, infrared, visible light radiation ultraviolet radiation), wherein said electromagnetic radiation possesses a wavelength generally in the range of from about 1000 Angstroms to about 50 meters, wherein said composition comprises a polyaniline composition of the formula ##STR1## where y can be equal to or greater than zero and R' and R.sub.2 are independently selected from the group consisting of --H, --OCH.sub.3, --CH.sub.3, --F, --Cl, --Br, --I, --NR.sup.3.sub.2, --NHCOR.sub.3, --OH, --O, --SR.sup.3, --OR.sup.3, --OCOR.sup.3, --NO.sub.2, --COOH, --COOR.sup.3, --COR.sup.3, --CHO, and --CN, where R.sup.3 is a C.sub.1 to C.sub.a alkyl, aryl or aralkyl group.

Abstract: The invention relates to thermomechanical transducers drivingly linked to a linear motor or alternator, preferably a free piston Stirling engine in which the piston is drivingly linked to the field magnet of an alternator. There are symmetric and coaxial secondary magnets attached at opposite ends of the field magnet. The field magnet is polarized radially in one direction and the secondary magnets are polarized radially in the opposite direction. When the field magnet is displaced from a centered position, the secondary magnets have an oppositely directed axial net force exerted upon them. This causes a centering bias on the field magnet and therefore a centering of the piston in the Stirling engine or cooler.A secondary effect produced by the magnetic spring of the secondary magnets is amplitude limiting during load reduction on the Stirling engine. Amplitude limiting is a result of increased spring constant of the magnetic spring past a certain amplitude.

Abstract: An improved technique for balancing inertia forces and rocking couples of a Ross-type Stirling machine (U.S. Pat. Nos. 4,138,897; 4,532,819 and 4,738,105). Two counter-rotating balance masses are used, one on the crankshaft and one on a separate balance shaft. These balance masses lead the throw of the crankshaft by more than 180 degrees of rotation. The axis of the balance shaft is positioned so that a line connecting it and the axis of the crankshaft is inclined with respect to the cylinder axes toward the heavier piston of the machine. The new technique is also applicable to other machines having separate parallel cylinders in which pistons of unequal mass reciprocate out of phase.

Abstract: Galvanic protection of steel is provided by teaching of a technique for determining alloys of compositions useful for the cathodic protection. The technique includes determining the critical cathodic protection potential for steel and the galvanic current and corrosion potential for candidate metal alloy compositions followed by coupling to the steel of one such alloy composition whose determined corrosion potential is lower than the critical corrosion potential for the steel in the corrosive environment in which protection is sought.

Abstract: A container made up of a smooth, seamless, synthetic resin tube with air permeable end caps which removably fasten to each end, used for transporting animals. A holder made of corrugated paper with aligned holes on opposite panels through which the containers are inserted and held.

Abstract: This invention relates to the field of paperboard tray forming machines which typically consist of an upper and lower die which interlock to deform a paperboard blank. The invention is an arcuate yoke having a pair of legs to which locating stops and side guide plates are rigidly attached. The die is angled to the earth so that a blank deposited onto the die is gravity biased toward the locating stops. The yoke is vibratingly driven and the blank is vibrated into position on the lower die by contacting the locating stops and side guide plates and vibrating to the blank's lowest position on the die.

Abstract: A water-borne vehicle with floats, a frame which is mounted on the floats providing a seat and a steering mechanism, and a propulsion means for propelling the vehicle in the water. The propulsion means comprises a plate which is generally parallel to the surface of the water and which is displaced up and down by a foot pedalled crank. A connecting arm is attached at one end rigidly and perpendicularly to the plate and at the opposite end to the crank. The horizontal position of the plate is maintained by an upright member which is slidably retained between rollers that maintain its upright position and is pivotally attached to the plate. As the crank is rotated, one end of the connecting arm follows a circular path, displacing the plate upward and downward. As the plate oscillates up and down, the upright member slides up and down between the rollers and maintains the horizontal position of the plate as directly below the upright member.

Abstract: This invention relates to the inhibition of cell proliferation in mammalian host organisms. More particularly the invention relates to the utilization of selenodithiol compositions, particularly selenodiglutathione (GSSeSG) within a narrow concentration range, in which it is both effective as an inhibitor of cancer tumor cell proliferation in mammals, particularly in the prevention of neoplastic cell division in humans, while substantially non toxic outside this narrow range to the treated host organism. The invention also relates to a method for stimulating cellular proliferation at lower concentration of selenodiglutathione.

Abstract: The invention discloses a biphasic method of treating cancer tumors sensitive to treatment with selenodithiols, which method comprises administering a specific amount of a selenodithiol to the cancer tumor whereby the cancer tumor cells die and the surrounding non-cancerous tissue exhibits cell proliferation in cells sensitive to selenodithiols. A range of ratios of selenodithiol concentration to tumor diameters or volume is claimed.

Abstract: A compression piston and cylinder mechanism for the V type two piston Stirling engine which substantially reduces engine dead volume without increasing complexity or decreasing mechanical efficiency. A stepped piston is attached at its smaller outer portion to a relatively long connecting rod. The piston seal is located at the larger inner portion of the piston, thereby permitting a short passage of low dead volume to connect the volume swept by the compression piston to the engine's heat exchangers. A stepped cylinder corresponds to the shape of the piston, having a smaller outer portion that sustains the side loading resulting from connecting rod angularity, and a larger inner portion that the piston seals against.

Abstract: A paper tray forming machine with an improved blank centering device which consists of at least one finger which is moved upward and toward two passive stops. The finger may be shaped similarly to the blank's edge so that precise positioning occurs during the motion of the fingers.

Abstract: An electrical circuit used in conjunction with high power factor ballasts and quality fluorescent lamps to reduce the power consumption of a fluorescent fixture by an average of 40% with a lesser reduction of light output because of optimized current control through the discharge lamps increasing the efficacy of conversion of electricity to light, accomplishing this by means of a tuned inductor-capacitor resistor circuit, these along with a 1 to 1.3 impede current surges, transformer, add harmonics a circuit diode and feedback loop to reshape the circuit waveform for optimum performance of said lamps and optimum economic savings and payback through applicaiton of this technology to multiple fixtures in offices, factories, commercial buildings and stores.

Abstract: A continuous cyclic thermal swing adsorption process for the regeneration of a fixed adsorption bed and the purification of an incoming feed liquid stream, with the utilization of at least one product recycle stream, the feed stream comprising a solvent containing at least one dissolved solute, the process comprising contacting a first feed liquid stream maintained at a first temperature, the first feed stream comprising a mixture of a recycled pure, product liquid stream and optionally, at least some of the incoming feed liquid stream, with an at least partially saturated fixed adsorption bed to thereby regenerate the fixed adsorption bed while removing an enriched product liquid stream from the fixed adsorption bed; recycling an effective amount of the enriched product liquid stream having a desired solute concentration to a first storage means; contacting a second feed liquid stream, the second feed stream comprising a mixture of the incoming feed liquid stream and the recycled enriched product liquid stre