Abstract: A sensor is disposed within a missile housing upon a mount that permits the ensor to pivot about a first axis, orthogonal to a longitudinal axis of the missile, and about a second axis orthogonal to the first axis. A first set of opposing fins is disposed externally of the housing and is coupled to the mount at its first axis by a pair of pivots that extend through and are pivotally mounted to the housing. The sensor is aligned about the first axis with an airflow that impinges upon the first set of fins. A second set of opposing fins is disposed externally of the housing and is mounted thereto for pivotal movement about a third axis orthogonal to the first axis and longitudinal axis by another pair of pivots that extend through the housing. A guide member is attached to these pivots internally of the housing. A follower is attached to the sensor and engages the guide member so that the sensor is aligned about the second axis with the airflow impinging upon the second set of fins.

Abstract: A rotary solenoid providing opposite direction pivotal movement on opposite olarity d.c. energization. The solenoid has a pivoting shaft from which a permanent magnet armature having ends of opposite magnetic polarity extends transversely and oppositely. The armature is disposed between a pair of pole pieces each of which extends along the armature between its ends. The pole pieces are oppositely electromagnetically magnetized by a d.c. winding so that reversing the electrical polarity of the winding reverses the polarity of each pole piece and its attraction or repulsion of the armature ends. The pole pieces are opposite arms of a U-shaped ferromagnetic structure on which the winding is centrally wound, and the shaft is supported by a bearing in a nonferromagnetic bridge between the pole pieces.

Abstract: Preprocessing of a noisy image, such as is obtained by a raster scan, by tracting the median of the pixel values of one or more lines from the medians of predetermined pixel neighborhoods.

Abstract: An air-breathing solid fuel rocket motor containing a solid fuel ramjet gn having a plurality of concentric layers of solid fuel which provide a means of controlling the thrust of the motor.

Abstract: Metal ternary sulfides of the general formula MM'.sub.2 S.sub.4 are synthesized by introducing stoichiometric amounts of nitrate precursors in concentrated nitric acid and heating to approximate dryness to yield a homogeneous powder mixture. The mixture is then exposed to a gaseous H.sub.2 S atmosphere under controlled conditions to produce the desired sulfide.

Abstract: A method for determining the presence, during deposition of a first thin m layer, of a substance which escapes when the layer is cooled and transferred from its deposition environment for analysis to determine the presence of the substance. The layer is first covered with a second layer of a material which captures the escaping substance. This second layer is then covered with a cap layer of a substance which seals the second layer against contamination, as from the atmosphere during transfer. The layered structure, with the escaped substance retained in the second layer, is then analyzed, as by sputter depth profiling and Auger electron spectroscopy, to determine the presence in the second layer of the escaped substance and thus determine the presence of this substance during deposition of the first layer.

Abstract: A plurality of chemiluminescent light sources are expelled from a housing an explosive charge in such a manner as to activate and provide a marked area.

Abstract: Aliphatic polyethers having at least two N-methylmaleimide groups chemica joined thereto by a carbonate linkage are provided and a method for making such compounds. The hydroxy-terminated aliphatic polyether, such as polypropylene glycol, is initially reacted with carbonyl chloride to form the chloroformate. The polyether chloroformate derivative is then reacted with N-hydroxymethylmaleimide yielding the bis or tris(maleimidomethyl)carbonate of said polyether.

Abstract: Laser dyes of the class of 2-substituted oxazolo [4,5-b] pyridines which lase when flashlamp or nitrogen laser pumped.

Abstract: A method and processor for varying the size of a digitized video image in bstantially two video frame times by transforming successive lines of the image along one axis and then transforming successive lines of the image along the other axis.

Abstract: A fast analog multiplexer is disclosed which utilizes a plurality of paral MOSFETs coupled to a plurality of parallel analog inputs, the gates of said MOSFETs being controlled by a binary decoder to allow passage of only on analog voltage to be summed by an op amp while concomitantly shorting other analog voltages to ground, thereby attenuating the delaying summed capacitive effects of stacked parallel MOSFETs.

Abstract: A rotating blast diffuser for a Gatling type gun is disclosed. The diffuser as a streamlined, forward nose containing gas stripping means individual to the barrels. The gas stripping means, annular members for example, strip muzzle blast from a firing barrel, and divert the blast into a forward collection chamber. The blast expands in the collection chamber and flows to an aft expansion chamber where it undergoes additional expansion. Vent holes in the aft expansion chamber permit the blast to exhaust this chamber. A peripheral housing is placed around the diffuser allowing the exhausted blast to undergo further expansion before venting into the atmosphere.

Abstract: Oxazole dyes and certain quaternary salts of these compounds having a formula as follows: ##STR1## are useful as visible-wavelength lasing dyes. These dyes are useful in solution with non-interferring polar solvents, such as low molecular weight alcohols, H.sub.2 O and mixtures thereof, to form lasing media useful in dye lasers.

Abstract: An antenna system for adaptive steering in azimuth and elevation. The sys utilizes a cross-shaped, planar, microstrip array with a central receiving element and with arms of parasitic elements having individual phase shifters which are simultaneously adjusted. In steering a null, the phase shifters are initially adjusted in a "random search" mode and are then adjusted in a "guided random search" mode.

Abstract: A dye smoke which burns efficiently and without flame consisting essentia of a hydroxyl terminated polybutadiene binder, the biuret trimer of hexamethylene diisocyanate curative, a leucoquinizarin dye referred to as 1,4,9,10-tetrahydroxyanthracene, and ammonium iodate oxidizer. The leucoquinizarin dye is oxidized and iodinated resulting in the iodoanthraquinone derivatives which produce the colored smoke.

Abstract: A thrust vector control apparatus for selective deployment of a vane within n exhaust stream has the vane mounted on the periphery of an exhaust nozzle for pivotable movement between a retracted position without the stream and an inserted position within the stream. A pivotally mounted link assembly is used with an actuator to urge the vane into the stream. The link assembly becomes locked in place upon the full insertion of the vane. This locked position precludes unintended pivotal motion of the vane; however, rotational motion of the vane is still possible due to the pivotal connection of the link. A second actuator rotates the vane in the stream, thereby controlling the direction of the stream.

Abstract: The bismaleimide of dimer diamine is synthesized using N,N'-dicyclohexylcodiimide and 1-hydroxybenzotriazole.

Abstract: Finely divided metal sulfide powders of uniform size are produced at low temperatures by a method of adding solutions of organometallic compounds to an organic solvent saturated with H.sub.2 S. The solvent is kept saturated with H.sub.2 S by adding H.sub.2 S at a rate greater than that for the organometallic compound.

Abstract: A mounting for an object processed at a predetermined temperature in an uahigh vacuum chamber having a stainless steel wall. The mounting has a stainless steel tube welded to the wall and opening through it and has an oxygen-free-high-conductivity copper finger extended from the tube to receive the object. At the junction of the tube and the finger, the tube bears an annular knife edge which engages a flat surface of the finger, and an ultrahigh vacuum seal is established by a collar and bolt coupling which draws the finger against the knife edge. The temperature of the finger and the object are then controlled and measured by cryogenic liquids, electrical heaters, and sensors inserted through the tube into contact with the finger.

Abstract: A process of preparing 1,3,5-trinitro-1,3,5-triazacyclohexane of high teccal purity by a one-step direct liquid nitrolysis of hexamethylenetetramine with dinitrogen pentoxide in 100% nitric acid under a separate chlorinated hydrocarbon phase.