Abstract: A method and apparatus is disclosed for determining the height, width, leh and orientation of an object from the feature image of the object found on oblique panoramic aerial photography. A magnifying eyepiece is provided with a calibrated reticle for measuring the dimensions of the feature image. The eyepiece also has a reference mark and indicia about the eyepiece for measuring the orientation from true north of the longitudinal axis of the feature image. The actual measurements of the object are quickly determined from the measurements of the feature image using a suitably programmed calculator supplied with the photograph and camera parameters.

Abstract: Disclosed is a method of growing a layer of CdTe on HgCdTe by liquid phase epitaxy. The solution for growth comprises Sn and Hg with a small amount of CdTe. A typical composition is Sn:Hg:CdTe=36:5:0.15 parts by weight. The growth temperature is a function of the amount of CdTe in solution. For the typical composition stated, the growth temperature is about 520.degree. C. The layers were grown on (111)A oriented CdTe substrates. The HgCdTe epilayer with a desired Cd composition is first grown, and an epilayer of CdTe is subsequently grown on the HgCdTe epilayer. The cross-diffusion at the CdTe/Hg.sub.1-x Cd.sub.x Te interface has been as small as 0.3 .mu.m for the thin CdTe epilayer. The first CdTe/HgCdTe heterojunction sensitive to .about.2.8 .mu.m at 77K has been demonstrated.

Abstract: The apparatus and method comprise means to evaluate the interocular latency difference known to exist in individuals afflicted with multiple sclerosis. The apparatus includes two horizontal rows of 10 light emitting diodes separated by a horizontal partition. The upper row of diodes is seen by the eye and a lower row of diodes is seen by the other eye. Although the two rows are separated vertically, they are made to overlap optically and appear as one row by means of two periscopic eye pieces. The ten diodes in each field of view are energized (strobed) sequentially for 1/10 of the time required to scan a horizontal row. The directions of scanning in the two rows are opposite to each other. A separate diffraction line ruling is placed in each optical path to produce elongated diffraction images of each energized diode in one row which are at 45 degrees to the horizontal and at right angles to the elongated diodes in the other row.

Abstract: Disclosed is a method of growing a layer of CdTe on HgCdTe by liquid phase pitaxy. The solution for growth comprises Sn and Hg with a small amount of CdTe. A typical composition is Sn:Hg:CdTe=36:5:0.15 parts by weight. The growth temperature is a function of the amount of CdTe in solution. For the typical composition stated, the growth temperature is about 520.degree. C. The layers were grown on (111)A oriented CdTe substrates. The HgCdTe epilayer with a desired Cd composition is first grown, and an epilayer of CdTe is subsequently grown on the HgCdTe epilayer. The cross-diffusion at the CdTe/Hg.sub.1-x Cd.sub.x Te interface has been as small as 0.3 .mu.m for the thin CdTe epilayer. The first CdTe/HgCdTe heterojunction sensitive to .about.2.8 .mu.m at 77.degree. K. has been demonstrated.

Abstract: A float device is provided for density gradient fractionation which permits continuous removal of liquid samples from the surface of the liquid within a tube. The float device floats on the liquid surface and is provided with a centrally disposed length of tubing which extends through the device to provide communication between the liquid surface and a suction source such as a peristaltic pump. A concavity in the bottom of the float assists in removing trapped air and minimizes turbulent flow, thereby assuring high resolution of obtained samples.

Abstract: An air tunnel device is provided for use in combination with a thermohygrter of the type where the change of resistance of the probe in response to changes in the ambient atmosphere is used to measure the temperature and humidity of the atmosphere. The device includes a housing which defines an air passageway therethrough, a probe support for mounting the probe of the thermohygrometer so that the probe is exposed to the air passagement in the housing and a fan mounted in the housing below the probe support for drawing air into the air passageway and thus providing air flow at a constant velocity past the probe.

Abstract: A solar energy collecting and utilization system is provided which comprises a lens matrix formed by a plurality of lens units disposed in a generally planar array. Each unit comprises a plurality of lenses arranged in a dome-like configuration and having a common focal length. A solar heat collection surface, formed by a thin metallic (e.g. copper) sheet, is shaped to conform to the curve defined by a line drawn through the focal points of the lenses. A viscous liquid (e.g., a vegetable oil) is circulated in contact with the heat collecting foil to extract heat therefrom. A back-up system includes a plurality of infra-red lamps and associated lenses which focus the light from the lamps onto a further heat collecting surface in contact with the circulating, heat extracting liquid.

Abstract: Disclosed is a method for the prevention of the formation of ammonia as a product in the reaction of hydrazine and a halogen oxidizer used in a liquid-propelled rocket engine and in chemical laser pumping systems. The method employs vanadium pentafluoride as an additive up to about 1% to the halogen oxidizer to thereby shift the equilibrium of the reaction between the hydrazine and the halogen oxidizer so that no ammonia is produced.

Abstract: This invention relates to various 2-acetyl- and 2-propionylpyridine thioscarbazones which are substituted on the 4-nitrogen atom. These compounds are useful in the treatment of gonorrhea and, in addition, many are useful either in the treatment of malaria or bacterial infection. Also disclosed are several synthetic procedures used to prepare the thiosemicarbazones.

Abstract: An accelerometer is provided which utilizes at least one sheet of piezoelric polymer film, supported under tension in a frame, for sensing the acceleration-responsive movements of an associated inertial mass and providing an electrical output in accordance therewith. The accelerometer preferably comprises a pair of such sheets with the inertial mass, e.g., a sphere, supported therebetween. Connections to an electrical measurement unit are made through a coaxial cable whose outer sheath and inner conductor are respectively connected to outer and inner electrodes formed by metallic coatings on the outer and inner surfaces of the sheets. The frame is preferably cylindrical and a pair of associated rings which fit within the frame serve to clamp the two sheets in place under tension.

Abstract: The use of amine boranes to inhibit the inflammation process is disclosed. These boranes, which are boron analogs of .alpha.-amino acids, effectively block the following: general inflammation, induced arthritis, and the writhing reflex associated with inflammation pain. The inflammation associated with pleurisy is also inhibited. The boron analogs are shown in vitro to inhibit the release of lysosomal enzymes from liver and polymorphonuclear neutrophils (PMNs). Further, prostaglandin synthesis is blocked by these compounds at a low concentration, viz, 10.sup.-6 M.Liver oxidative phosphorylation processes are also uncoupled by these compounds, but PMN migration is unaltered at 10.sup.-4 M. The elevation of cyclic adenosine monophosphate in PMNs correlates positively with in vivo antiarthritic activity. Studies in rodents demonstrate that these boron analogs may be used at safe therapeutic doses. Several compounds per se are included within the scope of the invention.

Abstract: The construction of a direct reading, ionization chamber dosimeter is almost exclusively of thermoplastic material. Except for an electrometer frame and switch contacts, the dosimeter comprises components of injection molded thermoplastic material. The dosimeter barrel and most of the structural components are made from either electrically conducting polycarbonate or non-conducting polycarbonate. Optical parts and lenses are formed from transparent plastic materials. The ionization chamber is made from polypropylene loaded with carbon black. The light-weight plastic construction of the dosimeter renders it relatively insensitive to mechanical shock and causes it to interact with ionizing radiation in a manner substantially similar to animal tissue or human flesh.

Abstract: An automatic volume control system comprises a source for producing an audio signal; an amplifier responsive to a control signal for varying the amplitude of the audio signal, a transducer for converting the audio signal to sound energy, a detector for detecting the output of the transducer and ambient noise which interferes with comprehension of the sound energy, and a phase comparator connected to the detector and to the audio signal source for comparing the phases of the outputs thereof and for producing an output proportional to the level of detected ambient noise. The output of the phase comparator is connected as a control signal to the amplifier means so as to control the amplitude of the audio signal.

Abstract: A highly effective liner-barrier is disclosed for use with carborane-conting ultrahigh burning rate propellants. The liner-barrier includes a resinous matrix selected from an epoxy, polysulfide, and a near neutral phenolic resinous liner-barrier composition, and a leafing aluminum flake incorporated therein. When this liner-barrier is applied to the surface of a rocket motor case, or insulation when used, the leafing aluminum flake floats to a region near the surface of the resin. The liner-barrier is cured to yield a leafing aluminum flake sub-surface layer which markedly reduces the permeability of the liner-barrier by the carboranyl burning rate catalysts which results from the migration or diffusion of the carborane from the propellant. The ultrahigh burning rate propellant is compatible with and forms a secure bond to the liner-barrier. These requirements of compatibility and forming a secure bond are essential for the field of use.

Abstract: An improved method is provided for the chemotherapy of leishmanial infects. An 8-aminoquinoline anti-leishmanial agent is encapsulated within liposomes and the liposome-encapsulated drug is injected into the body. Subject use of a liposome carrier has produced marked enhancement of the effectiveness of the drug against leishmanial parasites in the liver (such as characteristic of infections which are difficult to treat).

Abstract: An automatic centering device for photometers which facilitates the automatic centering of each microtiter well is accomplished simply by moving the microtiter plate so that the stainless steel lamp housing tip is in proximity of the well. There is sufficient tension in the lamp support arm to automatically "nest", i.e. snugly fit the lamp source on the perimeter of the well being read and thus optically centering the light beam with the photodetector.

Abstract: When one time reference distribution node is referenced to another time reference distribution node through a repeater, the same delays are put into signals transmitted from the repeater that are in signals received by the repeater. This is accomplished by introducing variable storage buffers into the paths of signals transmitted from the repeater, and by providing for their control. Since the same delays are added to signals transmitted to a node that are in the signals received from that node, the difference in signal transit times in the two directions of transmission on a duplex transmission path is minimized. Accordingly, the transit time in both directions of transmission between any pair of nodes, which are communicating through the repeater, is essentially the same, and high accuracy is maintained for time reference distribution among the nodes of an electronic network.

Abstract: A method for isolating a non toxic, high molecular weight polysaccharide igen from the crude slime of a Pseudomonas aeruginosa culture, and a method for inducing immunity in a host to said live organisms is described. The slime is initially prepared for the isolation procedure by separating the bacterial cells from the slime and dissolving the slime in a phosphate buffer solution. Dissolved contaminating nucleic acids are then precipitated and separated from solution. A lipid A portion of the contaminating lipopolysaccharide constituent is then removed and precipitated by acetic acid hydrolysis, and the remaining lipids present are extracted with chloroform. Nearly all of the residual nucleic acids are then removed by digestion with nucleases, and the remaining protein extracted with phenol. The aqueous and phenol layers are then separated, and the aqueous layer applied to a gel filter to isolate the antigen by column chromatography. The antigen appears in the void volume.

Abstract: A physiologic facsimile image of a biological target without multipath comination is obtained by first producing, for each one of a plurality of sample locations which are spaced so as to define a two-dimensional array, a time delay spectrum wherein the frequency of each spectral ordinate represents the instantaneous differential propagation delay between a first microwave signal which has been propagated through the target and a second microwave signal which initially corresponds to the first microwave signal, and which has been propagated through means having a predetermined propagation delay, and measuring the amplitude of the spectral ordinate corresponding to the direct ray path of propagation through the target, so as to obtain a set of data. The set of data is then digitized and converted from time domain to frequency domain.