Abstract: Pharmaceutical compounds of the general formula (1) have been prepared ##STR1## and non-toxic pharmaceutically acceptable salts thereof, wherein R.sub.1 is a lower alkyl, phenyl lower alkyl, amino substituted phenyl lower alkyl, nitro substituted phenyl lower alkyl, cycloalkyl lower alkyl or a lower alkenyl substituent, R.sub.2 is a member selected from the group consisting of a cyano, pyridylsulfonyl, lower alkyl substituted sulfonyl, phenylsulfonyl, lower alkyl substituted phenylsulfonyl, lower alkoxy substituted phenylsulfonyl, halogen substituted phenylsulfonyl, nitro substituted phenylsulfonyl, amino substituted phenylsulfonyl and lower alkyl amido substituted phenylsulfonyl; R.sub.3 is a hydrogen or halogen atom; and R.sub.4 is a hydrogen, lower alkyl or lower alkoxy substituent, lower denoting a straight or branched chain having from 1-4 carbon atoms. These compounds exhibit analgesic agonist activity or analgesic agonist-antagonist activities.

Abstract: The baseband linearizer attenuates the amplitude of the in-phase and quadrature phase components of the baseband signal as a function of the transfer characteristic of the high power amplifier and under the control of a baseband signal power level detector. The phase angle of the attenuated signal is rotated as a function of the amplifier transfer characteristic, again under the control of the power level detector.

Abstract: An ultrafiltration and reverse osmosis module comprising a tubular casing having a plurality of tubular membrane assemblies spaced therein by spacing plates, in stepped end portions of the casing bore, and held therein by sealing plates clamped to flanges on the ends of the casing. The tubular membrane assemblies are sealed around bores in the spacing plates and boxes in the sealing plates by "O"-rings and are held against collapse by sleeves in the ends of the tubular membrane assemblies.

Abstract: An apparatus for viewing and measuring using a partially reflective grating superimposed with the object. The invention provides efficient separation of viewing and measurement spectra from a common axis for a clear view of the object in conjunction with an accurate interferometric measuring system.

Abstract: A light weight composite panel for use in vaults or strong rooms, having a foamed plastic core, metal mesh embedded in the major faces of the core, a layer of wood on each face of the plastic core, and a sheet metal skin covering the layers of wood. An inner one of the sheet metal skins is preferably a heat conductive metal, such as aluminum.

Abstract: The invention relates to colloidal sized particles composed of magnetic iron oxide (Fe.sub.3 O.sub.4) coated with a polysaccharide, preferably dextran, or a derivative thereof having pendant functional groups. The particles have a magnetic moment, are electron dense, and are stable and non-aggregating under physiological conditions. They can be covalently bonded to antibodies, enzymes and other biological molecules and used to label and separate cells, cellular membranes and other biological particles and molecules by means of a magnetic field.

Abstract: This invention is a digital phase modulator for microwave transmitter systems. A digital signal is bandwidth limited at baseband, then is shaped to compensate for the nonlinear reflection coefficient versus bias voltage characteristics in a phase modulator. The shaped signal is applied to the phase modulator to modulate a carrier. The carrier signal is derived from a high power amplifier operating at its maximum power handling capability. Linear multiplication is then obtained, and use of linear intermediate frequency stages, up-converters as well as operation of the high powered amplifier at less than maximum power to obtain linear operation is thus avoided.

Abstract: Polysulfone cast films, including polyethersulfone cast films, are partially gelled with mineral acid prior to or during the conventional water gelation to control the porosity of and improve the productivity of reverse osmosis and ultrafiltration membranes thus produced. The partial gelation may be carried out prior to the water gelation by contacting the cast film with the mineral acid in a gaseous or aqueous form and the gaseous form may be diluted with air. The partial gelation may, in different embodiments, be carried out simultaneously with the conventional gelation by dissolving the mineral acid in the gelation liquid.

Abstract: A method of producing carbonyl fluoride by multiphoton decomposition of carbon dioxide-sulphur hexafluoride mixtures comprising irradiating gaseous carbon dioxide-sulphur hexafluoride mixtures in a reaction chamber at a pressure in the 10-50 Torr range with a laser beam at a frequency of about 944 wavenumbers and passing the material from the reaction chamber after irradiation through a chemical processing stage to obtain a carbonyl fluoride product.

Abstract: A method of producing carbon-13 using CF.sub.2 HCl as the feedstock (substrate) material in which the CF.sub.2 HCl is enriched up to a first level of C-13 by I.R. laser photodissociation and then to 90-99% C-13 by a second exchange process. In the preferred arrangement the second stage is a chemical exchange process.

Abstract: A process for treating cereal grains and particularly oats, to separate the endosperm from the remainder of the kernel without dry milling. The grains are soaked in an aqueous medium having a pH of 3.0-7.0 at a temperature in the range 40.degree.-70.degree. C. for sufficient time to absorb at least an equal weight of the liquid medium. The conditions are such that the endosperm portion of the grain liquefies, as opposed to softens. The grain may be crushed in a variety of ways to split the husk and release the liquid endosperm contents which are then dispersed in water. The endosperm solids can be recovered from dispersion, following a screening step to separate the husks by drying to yield a substantially white, lower fiber whole endosperm flour product. Alternatively, the dispersion may be sedimented and/or centrifuged to produce a wet solids fraction and a soluble fraction, each of which can be subsequently recovered in dry form.

Abstract: There is described a method and an apparatus for depositing oxide, such as zinc oxide, on a substrate by R.F. magnetron sputtering. The oxide deposit is "switched" from a non-conducting to a highly conducting material by a second discharge caused by a voltage applied to a screen grid immediately in front of the substrate, or is rendered conducting by a heating step.

Abstract: The thinned arrayed transducer for a sonar system includes an array of sonar elements mounted in rows (layers) and columns (staves) on a structure, preferably cylindrical, to form a checkerboard pattern wherein the spacing between adjacent elements in the rows and the columns is equal to or greater than .lambda..sub.m /2, where .lambda..sub.m is the wavelength of the signal of frequency f.sub.o transmitted in the medium where the sonar is being used. The transducer structure is made from a layered cloth impregnated with a phenol based material, and includes openings in which the sonar elements are mounted. The sonar elements which are effectively a half wavelength in length consist of a cylindrical ceramic section fixed end-to-end to a cylindrical metal section. The metal section is made of a loading metal, such as brass. The transmit-receive circuitry energizes the elements by row using a modulated signal to form a variable sonar beam.

Abstract: A thermal energy storage medium comprising Na.sub.2 SO.sub.4.10H.sub.2 O and Na.sub.2 HPO.sub.4.12H.sub.2 O. This material provides advantages over Na.sub.2 SO.sub.4.10H.sub.2 O alone such as constancy of heat delivery temperature and energy output, improved reversibility, and greater usable volumetric storage capacity after repeated cycling.

Abstract: The laser-triggered high voltage rail gap switch includes two parallel electrodes in a high pressure environment of SF.sub.6 and Ar. A pulsed UV laser directs a coherent beam parallel to the electrodes to initiate multichannel breakdown in the gap between the electrodes. This breakdown occurs at a fixed time delay after the laser pulse. This breakdown is enhanced by including an organic additive such as fluorobenzene or tri-n-propylamine in the gas mixture.

Abstract: The breathing cycle of a patient is controlled to achieve proper ventilation and at the same time minimize the work of distension of the lungs. Oxygen enriched air is delivered to the patient during the inspiration period such that the pressure waveform is a ramp function having initial and final values which are dependent on the resistance, compliance and alveolar volume of the lungs. The apparatus includes a source of oxygen enriched air at a regulated pressure and a pneumatically controlled pressure reducing valve for reducing the pressure of the oxygen enriched air for delivery to the patient. The valve is controlled by a transducer which converts an electrical control signal into a pneumatic control signal. The electrical control signal which is generated by an electronic control circuit, is a function of the parameters of the patient's lungs.

Abstract: A barometer of the evaporation or hypsometer type comprising an enclosed cylindrical bulb partially filled with a working fluid, a first temperature measuring device positioned in the bulb for measuring the temperature of the working fluid therein, a relatively thin extended tube connected to and extending upward from the bulb, a second temperature measuring device positioned on the tube at a position away from the bulb for measuring the temperature of the working fluid at that location, an electrical heater associated with the bulb for bringing the working fluid to the evaporation temperature, a mechanism for transmitting ambient pressure to the inside of the tube-bulb combination and preventing escape of working fluid connected to the upper end of the tube, electrical means connected to the heater for providing a heating current thereto, control means connected to the second temperature measuring device and the electrical means for controlling the level of heating current provided to the heater, and output

Abstract: The continuous processing of food products with steam, such as for blanching or cooking of vegetal products. The apparatus comprises a heating module and holding module. The heating module includes a pervious conveyor through which steam is emitted to heat and agitate the products thereon allowing uniform treatment of relatively thick layers of product. The holding module, comprising a compartmentalized conveyor, holds the heated products at an elevated temperature to complete processing without additional heat input.

Abstract: A method of upgrading a product containing a minor proportion of pre-vitamin d.sub.2 or pre-vitamin d.sub.3 and a major proportion of tachysterol comprising irradiating the product with laser light in the wavelength range 330-360 nanometers to obtain a product containing approximately 95% pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3, and heating this product to convert the pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3 to vitamin -D.sub.2 or vitamin -D.sub.3.

Abstract: Certain isolated fractions, extracted from allergy-causing molds, have been found to be antigenic but non-allergenic, and are able to decrease substantially or prevent the susceptibility to mold allergens of allergic individuals. The antigenic non-allergenic fractions contain protein and carbohydrate and have molecular weights which have been found to vary with the mold source. Increased polyvalent protection can be realized by combining fractions from different molds, e.g. Alternaria with Hormodendrum or Helminthosporium. The extracts are administered parenterally, preferably subcutaneously in isotonic saline.