Abstract: Explosives that are sensitized blends of a water-in-oil emulsion and inorganic nitrate, e.g., AN, particles, such as AN or ANFO prills, have improved stability when their structure hinders the loss of water from the aqueous emulsion phase and transportation of such water across the oil phase to the nitrate particles. Use of an anionic emulsifying agent comprising a fatty acid salt, e.g., as formed in situ during the formation of the emulsion, is the preferred way of forming such a blend-stabilizing structure. Emulsion/nitrate blends stabilized in this manner make satisfactory storage-stable packaged products. Emulsion/nitrate blends made with a new low-viscosity emulsion containing essentially all of the oil required to oxygen-balance the blend and a proportionately larger amount of anionic emulsifying agent to stabilize the emulsion structure constitute preferred bulk products owing to their greater adaptability to pumping.

Abstract: A method of preparing a substrate coated with a proteinaceous foaming composition wherein the substrate is coated with the foamed composition and the foamed composition is mechanically disintegrated to form a continuous surface coating upon the substrate. The foamed composition is prepared by ingesting gas into an aqueous medium containing a proteinaceous foaming composition consisting essentially of at least one proteinaceous foaming component selected from the group consisting of vegetable protein hydrolyzate having at least two different chelating sites, egg albumen, and casein hydrolyzate; alkaline earth metal ions, and zinc ions.

Abstract: Phosphorus containing compounds of the formula ##STR1## wherein X is a substituted or unsubstituted imino or amino acid and A is ##STR2## These compounds possess angiotensin converting enzyme activity and are thus useful as hypertensive agents.

Abstract: An improvement is disclosed in a process for conducting PTFE dispersion polymerization, comprising use of tertiary perfluorinated compounds as rate enhancing additives.

Abstract: An SS/TDMA communication system comprises a multiplicity of ground stations, including one master station and a number of traffic stations without control function, exchanging digitized voice or other message signals via a relay station aboard a satellite. Each ground station comprises base-band equipment including a transmitting section, a receiving section and a control unit. The control unit of the master station generates outgoing timing signals and processes incoming timing signals for synchronizing the operations of its own equipment and that of the traffic stations with the operation of a switching unit of the satellite-borne relay station; this control unit also emits routing instructions for that switching unit.

Abstract: A body transparent to laser radiation, such as an optical fiber or a preform thereof in the process of manufacture, is transluminated by a monochromatic beam of a frequency in the THz range split off from a composite laser beam with two closely spaced frequencies produced by the Zeeman effect. Another monochromatic beam of the second laser frequency bypasses the transparent body and is photoelectrically recombined with the first beam to provide an electrical measuring wave at a beat frequency in the MHz range differing in phase from an electrical reference wave of the same beat frequency, similarly derived from the original laser beam, to an extent determined by the refractive index and the thickness of the transluminated body. Two or more phase comparisons are made with different angles of incidence of the transluminating beam and their results are compared for an arithmetic determination of refractive index and thickness.

Abstract: Sheet steel used for making the cores of electrical machines is improved as to its punchability by coating it with a heat resistant coating of a complex mixture of phosphates and resins compatible with acid phosphate ions. The coating contains between 60 and 95% by weight of the phosphates and between 5 and 40% by weight of the resins. The resins can be acrylic base resins, ethylene-vinyl acetate copolymer resins, or thermosetting epoxy resins.

Abstract: A semiconductor chip carrier is retained within a connector housing using a pair of compression springs mounted on an exterior surface of the connector housing to move a corresponding pair of latch arms into a locking position over a top surface of the chip carrier.

Abstract: An automatic X-ray film unloading and loading apparatus is actuated by sensing indicia on the cassette to perform various operations on the cassette and/or the film therein.

Abstract: Lightweight nonwoven sheets of polyethylene plexifilamentary film-fibril strands are made by a stretching-and-bonding operation in which the unit weight of the sheet is decreased in stages while at a temperature within 3.degree. to 8.degree. C. of the melting point of the polyethylene. The resultant sheet has a novel combination opacity, X-ray scattering and physical characteristics and is particularly suited for sterile packaging, lightweight envelopes and surgical drapes.

Abstract: An audio dosimeter for use by an individual for measuring exposure to sound which contains the following components:(a) an electronic microphonic sound sensor means,(b) an amplifier and weighting circuit,(c) an x-squared detector circuit,(d) a temperature compensation circuit;(e) analog to digital time converter,(f) a microcomputer which controls functions of the temperature compensator circuit and analog to digital time converter and has unique logarithmic mathematics for converting the signal from the converter into sound measurement values such as percent of dose, average and maximum decibel levels and instantaneous sound level.

Abstract: A process for cathodic electrodeposition of small particle, below 20 .mu.m, resin powders coated with precipitated or adsorbed metal oxide or hydroxide at a pH above the isoelectric point giving a zeta potential of at least as negative as minus 35 millivolts. The preparation of the bath is also part of the invention.

Abstract: A pouch having a bottom wall secured to an adhesive layer that can be cut to fit around a wound or surgical opening, gusseted side walls, and a top wall provided with one or more access openings. An irrigation port and a catheter access port can be secured to these top wall openings. The bottom wall extends beyond the adhesive layer and is provided with a large exit port oriented so that gravity will drain wound exudate from the pouch. This exit port is also large enough to accommodate a hand to aid in locating the pouch on the body and permit access to the wound site without removing the pouch from the body.

Abstract: A method is provided for enhancing penicillin acylase production wherein a Bacillus subtilis plasmid containing an insert of a chromosomal DNA fragment of Bacillus megaterium which includes the appropriate gene for enhancing penicillin acylase production is cloned into Bacillus megaterium and the Bacillus megaterium containing the above plasmid is employed in the production of penicillin acylase.A plasmid method for forming same and host plasmid combination which are useful in the above method are also provided.

Abstract: A separate capping assembly for a centrifuge tube includes a stopper having a plug adapted for close fitting receipt on the interior of the neck of the tube being sealed and a complimentary tubular sleeve sized for close fitting receipt over the exterior of the tube neck. The sleeve is responsive to a radially inwardly directed force by deformably crimping to compress the material of the neck of the bottle into an annular seal defined between the plug and the sleeve. The annular seal so formed resists fluid leakage from the interior of the tube during centrifugation of the tube.

Abstract: A reinforced ion exchange membrane which comprises fluorinated polymer which has carboxylic functional groups, which has a hydrogen bubble release layer on the cathode-facing side thereof, and which has channels open to the outer surface of the anode-facing side thereof, is described. Precursor membrane, which may contain partially embedded sacrificial members, and from which the reinforced ion exchange membrane is made, is also described. The reinforced ion exchange membrane can be used to separate the compartments of a chloralkali cell, and such a cell operates at low voltage, high current efficiency, and low power consumption.

Abstract: An enkephalin-degrading aminopeptidase enzyme is inhibited by compounds having the formula ##STR1## and pharmaceutically acceptable salt thereof, wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl, carboxyalkyl, halo substituted alkyl, hydroxyalkyl, aminoalkyl, mercaptoalkyl, alkylthioalkyl, (cycloalkyl)alkyl, (heteroaryl)alkyl, arylalkyl, carbamoylalkyl, guanidinylalkyl, or heteroaryl;R.sub.3 is hydroxy, alkoxy, (substituted alkyl)oxy, arylalkoxy, (heteroaryl)alkoxy or --NY.sub.1 Y.sub.2, wherein Y.sub.1 and Y.sub.2 are each independently hydrogen, alkyl, aryl, or arylalkyl or Y.sub.1 is hydrogen and Y.sub.2 is substituted alkyl or (heteroaryl)alkyl;A.sub.1 is glycyl, alanyl, leucyl, phenylalanyl, arginyl, sarcosyl, seryl, asparagyl, lysyl, glutamyl, histidyl, tryptophyl, cysteinyl, methionyl, threonyl, tyrosyl, leucyl, valyl, aspartyl, prolyl, norleucyl, norvalyl, or ##STR2## wherein n.sub.6 is an integer of 2 to 15; A.sub.2, A.sub.3, A.sub.4 and A.sub.