Abstract: An airflow particulate mass measuring apparatus directs the incoming particulate by means of a wedge ring and a central parabolic needle to strike in a capture annulus of a spinner whose change in angular rotation is related to the mass of the particulate striking the spinner. A plurality of torque blades on the spinner cause the particulate to be accelerated and centrifugally ejected.

Abstract: A solid state gas pressure sensor has a resistor of polysilicon deposited upon a dielectric substrate which electrically isolates and thermally prevents heat transfer to other devices thereon. A constant voltage is applied to the resistor. Depending upon the gas pressure over the sensor, a given current will be output once temperature equilibrium is established. A change in the gas pressure changes the output current of the resistor. The output current indicative of pressure is temperature corrected.

Abstract: A photodetector using a modified ion-sensitive field effect transistor has therein a layer of photoactive material. Upon exposure to a beam of light the photoactive material produces a charge-separation (with proton movement) therein which affects the drain current. The change in gate voltage to stabilizes the drain current is a measure of the intensity of the light input.

Abstract: A radar window for a reentry vehicle where the window is made of a composite material of boron nitride, silica, and boron nitride yarn. Silica in the range of 2 to 18 percent is the preferred range in the composite material and the boron nitride matrix ranges from 5 to 15 percent.

Abstract: A process of fabricating a hybrid single crystal fiber having nonlinear optical properties such as frequency doubling. Said process includes applying a force to a fiber core resting upon a bulk nonlinear crystal such as LiIO.sub.3 in a saturated solution of LiIO.sub.3 in water. After the core is embedded a sufficient distance into the crystal the force is removed.

Abstract: The premixed cold reaction CW chemical laser places the secondary injectors which input fuel and/or diluent in the exit walls of the primary nozzle. These injectors are acutely angled thereto and are arranged in rows and are further grouped therein where a first injector inputs a pure diluent, a second group of injectors inputs independently of a third group.

Abstract: A process for the high pressure synthesis of InP using an independent temperature control of a three zone furnace incorporating a heat pipe provides a stable temperature profile throughout the synthesis cycle. Internal/external pressure control of the quartz ampoule is maintained by use of a water cooled baffle and a temperature/pressure balancing program. Complete synthesis is achieved in less than five hours.

Abstract: The aerodynamic window of the present invention provides a barrier between two different environments of a high energy laser device. The first environment is a transverse gas flow across the laser beam and the third environment is an axial flow beam path. The window having a second environment therein changes both the gas temperature and the gas pressure along the laser beam to minimize optical path differences between the first and third environments. The second environment has a thermal transition section and an injection section. In the thermal transition section before the injection section, a gas manifold provides a varying gas flow field. The thermal transition section changes the gas temperature while maintaining its pressure and velocity constant. A transverse flow is exhausted in a location opposite to the gas manifold. The axial flow enters into the injection section. Gas ejectors in the injection section mix the axial flowing gas and increase the gas pressure and velocity.

Abstract: A composition and process for suppressing the immune system of animals in which an effective amount of 3-aminotyrosine is administered which suppresses the endogenous immune system of animals.

Abstract: A method for synthesizing and growing a single crystal of indium phosphide includes vacuum baking and purifying of elemental indium prior to reacting it with red phosphorus within the same apparatus. The steps growth take place in a vertical apparatus by placing the reaction components within a reaction vessel that is sealed under vacuum after the purification and then heated and cooled within predetermined temperature limits to react indium with red phosphorus to synthesize molten indium phosphide and a single crystal of indium phosphide by cooling the molten indium phosphide within a controlled temperature atmosphere. Excess phosphorus is maintained during growth to eliminate the need for encapsulation of the growth melt.

Abstract: A pelletized, thermally activated, lightweight power source composed of a lithium alloy solid anode, a transition metal chloride-graphite solid cathode and an alkali metal tetrachloroaluminate solid state electrolyte positioned between and in contact with said anode and cathode.

Abstract: An automatic oxygen absorption measuring system has a controllable source of pressurized oxygen, a controllable venting device, and a device for indicating incremental gas volume changes connected through a controlled gas reservoir to an oxygen circulating testing section where oxygen is passed through a liquid sample at a fixed temperature. Upon the liberation of other gases than oxygen or absorption of oxygen, the gas pressure changes a liquid fluid level in the device for indicating incremental gas changes. An electronic circuit causes the venting or inputting of gas until an equilibrium pressure is obtained. Each change is noted on a recording device. The device for indicating incremental gas volume changes has two glass bulbs attached in line with a manometer filled with electrically conductive liquid fluid. Four electrical contacts placed about the bulbs indicate the level of the liquid fluid.

Abstract: A photodetector using a modified gate controlled diode has therein a layer of photoactive material. Photons interacting therein cause the formation of free protons which alter the electrical characteristics of the photodetector. The change in electrical characteristics is measureable and related to the intensity of photons received.

Abstract: The corrosion of molybdenum metal surfaces which come in contact with water-coolant systems is inhibited by the addition of a small amount of a composition containing a combination of a triazole inhibitor, a biocide and a buffering agent. A corrosion inhibiting composition containing benzotriazole as the inhibitor and benzoic acid as both a biocide and buffer proved to be especially effective in preventing the corrosion of molybdenum, tungsten and other metals.

Abstract: The present invention involves a treatment technique for drastically reducing the volume of hazardous sludge generated by the chemical reduction of chromium contaminants and the precipitation of heavy metal contaminants from contaminated electroplating wastewater. The wastewater is first adjusted to a pH of from about 8 to 10 and then treated with sodium sulfide to provide sulfide ions to effect precipitation of heavy metal contaminants followed by treatment with ferrous sulfate or ferrous chloride to provide ferrous ions to chemically reduce the hexavalent chromium to its trivalent state. This method produces approximately one-fourth the sludge generated by the previously known acidic reaction treatment using only ferrous sulfide.

Abstract: An aircraft window clamping ring is used to hold an optical sensor window against an aircraft wall. The ring has a plurality of cantilevers having upper contacts that bear directly down on the window. Because of the flexibility in the vertical direction, thermal expansion is compensated for by movement of the cantilevers. Horizontal expansion of the window creates no additional stress because the upper contacts bear perpendicular to possible horizontal movement. The cantilevers can be designed to preload the window to take into account maximum thermal expansion.

Abstract: A structural system is used to hold a laser communications subsystem having a gimballed telescope mounted on a truss system. Optical equipment requiring high tolerances is mounted onto an equipment support assembly that is mounted within the truss system for the gimballed telescope. This assembly is mounted by means of frame members and truss tubes.

Abstract: A synthetic aperture laser radar outputs a dual beam that overlaps at a distant object to form a moving fringe pattern. The object reflects back a return beam to the radar where a receiver makes a holographic image of the object on a photographic medium. The moving fringe pattern effectively increases the beam size that would be necessary if a stationary fringe pattern were used when the object moves across the pattern.

Abstract: The process of the present invention produces CMOS bulk circuits allowing any treatment of the field oxide up to and including the channel edge; allows p-field boron implant to increase parasitic threshold eliminates the bird's beak oxide encroachment which reduces channel width and recessed oxide along the channel edge; provides for a self-aligned p-field implant; and provides for a spacer use on a self-aligned p-field implant to offset effects of side diffusion and oxide undercut.

Abstract: An empty flatpack carrier sorting device sorts empty carriers by types according to the flatpack associated with said carrier. A vision system determines from an image of a flatpack component the number and location of the leads and the size of the flatpack and thus the type of carrier associated with that flatpack. Based upon this information, a computer directs the movement of a rotatable bin such that a selected storage location falls under a funnel through which an empty flatpack carrier falls as it is ejected from the automatic carrier feed and ejection device.