Abstract: Addition of as little as six parts per million boron to the magnesia final anneal coating on silicon-iron strip containing only about 1.5 ppm insures secondary recrystallization while the addition of 70 ppm boron to the coating on a strip containing 10 to 15 ppm boron results in substantial reduction in losses without affecting permeability of the final product when the nitrogen content of the alloy is in the 80 to 90 ppm range.

Abstract: Aromatic onium salts, such as diaryliodonium salts, have been found to be effective thermal initiators for the polymerization of a variety of cationically polymerizable materials including epoxides, cyclic ethers, phenol formaldehyde resins, etc., when used in combination with various cocatalysts such as organic acids and copper salts.

Abstract: A metal vapor discharge lamp includes a cathode comprising a reservoir of liquid cesium. Metallic cesium which is eroded from the cathode surface by the action of the discharge is returned to the reservoir by the combined effects of gravity, evaporation, condensation, and diffusion to provide a highly stable, long-lived lamp.The intense infrared pulse output of cesium vapor discharge lamps of the present invention is well suited for triggering light-activated semiconductor switches through dielectric pipe networks and for pumping neodymium glass or neodymium-YAG lasers.

Abstract: A charge transfer filter utilizing charge transfer accumulator structures for exponential smoothing of analog signals is described. The charge transfer accumulator structures provide short equilibration times, long smoothing time constants, high data rates and low dark currents.

Abstract: Metal wires of widths as small as 10 microns are migrated by thermal gradient zone melting processing as a molten zone through a body of semiconductor material. By calculating the width and thickness of the metal wires deposited on the wafer surface, improved uniform doped regions are produced. The method is restricted to the (100) planar orientation.

Abstract: The molecules in a twisted nematic liquid crystal are, in general, skewed relative to the optical axis of the cell (the perpendicular to the plane surfaces defining the boundaries of the crystal cell), and their birefringent effect on plane polarized light varies asymmetrically for such light making varying angles with the optical axis of the cell. When the cell is positioned between crossed polarizers and the cell is energized so that light is supposed to be completely extinguished, some rays are nevertheless transmitted so that the transmitted intensities at different viewing angles vary. To avoid this resulting variation of intensity with viewing angle, the cell is illuminated from behind with collimated light (i.e., all rays parallel to the optical axis of the cell) so that all rays "see" the average molecular director in the same way; a solid catadroptric element is utilized to both collimate the light and achieve essentially constant luminous flux intensity upon the display.

Abstract: An immune assay for tracing processes and reactions employs a narrow band laser tuned to the absorption line of a tracer isotope coupled chemically to a carrier molecule of protein. The carrier molecule is reacted with another molecule, the reaction products are vaporized, and resonance fluorescence from the tracer isotope illuminated by the laser is measured. Amplitude of the fluorescence signal provides a direct measure of the number of isotope-tagged molecules present after the reaction of interest.

Abstract: A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy and a silicon carbide ceramic substrate are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressure being applied to the container and its contents sufficient to dimensionally stabilize the container and its contents. The resulting shaped substantially isostatic system of powder-enveloped container is hot-pressed whereby fluid eutectiferous silicon-rich alloy is produced and infiltrated through the interstices between the diamond crystals and contacts the contacting face of the silicon carbide substrate sufficiently producing, upon cooling, an adherently bonded integral composite.

Abstract: When a body of semiconductor material is to be processed by thermal gradient zone melting, the outer peripheral side surface of the body is beveled to form an included angle .alpha. with the bottom surface of the body. The measure of the angle .alpha. is such that the radiant heat impinging on the beveled side peripheral surface is equal to the radiant heat emitted by the beveled side peripheral surface of the body.

Abstract: A thin opaque layer of material is deposited on one or both major opposed surfaces of a semiconductor wafer to enhance establishing a thermal gradient near the major surface or surfaces to produce straight, fine molten wires (<0.002") of a metal by migration of a melt of the metal through a solid, or matrix, both of semiconductor material by thermal gradient zone melting processing along a thermal gradient established and maintained aligned substantially parallel with a preferred crystal axis of migration by thermal gradient zone melting processing.

Abstract: A body of semiconductor material to be processed by thermal gradient zone melting (TGZM) has an outer side peripheral surface beveled at a predetermined included angle .alpha. with the bottom surface of the body in order that the radiant heat impinging on the beveled side peripheral surface is equal to the radiant heat emitted by the beveled side peripheral surface of the body.

Abstract: A fast neutron-irradiated zirconium-base alloy body having load-carrying capacity substantially greater than similar conventional zirconium-base alloy bodies likewise irradiated is produced by subjecting a body heat treated at 930.degree. C. and then water-quenched and containing 0.2 weight percent beryllium and at least 95 weight percent zirconium to integrated neutron flux approximating 1.2.times.10.sup.21 nvt while maintaining the body at about 330.degree. C.

Abstract: A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressure being applied to the container and its contents sufficient to dimensionally stabilize the container and its contents. The resulting shaped substantially isostatic system of powder-enveloped container is hot-pressed whereby fluid eutectiferous silicon-rich alloy is produced and infiltrated through the interstices between the diamond crystals producing, upon cooling, an adherently bonded integral body.

Abstract: Thermal gradient zone melting (TGZM) is employed to make a semiconductor magnetoresistor device embodying a plurality of spaced highly conductive planar metallic-like electrodes formed in situ by TGZM to maximize the increase in the current path in a magnetic field established in the device.

Abstract: A wafer of semiconductor material processed by thermal gradient zone melting is supported by a beveled inner peripheral surface defining an aperture in a guard ring to minimize the distortion of the thermal gradient at the outer peripheral edge surface of the wafer.

Abstract: A group of selectably-loadable counters is used to derive timekeeping information, for use in an energy load control system, by counting the accurate pulses obtained from a crystal-controlled oscillator and a divider chain. A back-up battery is used to allow the oscillator, dividers and counters to continue the timekeeping function even if normal power, obtained from power mains, is temporarily lost. An address decoder and input/output bus drivers interface with the counters to allow date, hour and minute time information to be routed to, or received from a data bus and under programmable control, when the clock is used in a microcomputer-based system.

Abstract: An electrical current collector for an acyclic machine employs a rotor collector ring encircled by a stator collector ring to which a compliant brush of electrically conductive filaments is attached. The gap between rotor collector ring and stator collector ring, including brush interstices, is flooded with liquid metal which is drawn around the rotor collector ring periphery when rotation begins. A thin film of liquid metal on the brush makes sliding contact with the rotor collector ring, enhancing conductivity between the rotor and stator collector rings through the brush filaments.

Abstract: Polymeric compositions containing organosiloxane units, carbonate units and a phenolphthalein nucleus are found to be both thermally processable and possess excellent flame resistance and smoke properties.

Abstract: An ultrasonic multi-sector scanner performs overlapping scans such that echoes are generated by many steered beams. A peak reading digital scan converter has a random access memory with a matrix of memory cell locations corresponding to image pixels. An analog or digital comparator compares the incoming echo amplitude with the stored amplitude at an addressed memory location, and writes the incoming data into that location only when the incoming amplitude is larger. The stored largest echo amplitude data is read out in a raster at TV rates for imaging on a cathode ray tube.

Abstract: A load control processor, for a programmable energy load controller system, includes a receiver-decoder section, a power supply section and a load switching section. The receiver-decoder section includes means for receiving an incoming data transmission encoded in a complementary-redundant error-detection code and for detecting the presence of errors in an initially transmitted address portion and a subsequently transmitted data portion of the data transmission. The power supply section includes means for recognizing the presence of a powersaver signal at the load control processor input, for removing power from the majority of the load control processor logic, when data reception and load change processing are not occurring, to reduce total power consumption of the load control processor.