Abstract: Compounds of the following general formula have been found to have biological activity and are useful in pharmaceutical compositions: ##STR1## wherein M = 0, 1 OR 2R = alkylene straight or branched chain of up to 3 carbon atoms, andX when present is a salt-forming acid.Typical compounds are 2-methyl-3-{1-(4-phenyl) piperazinyl} propionohydroxamic acid monohydrochloride and {1-(4-phenethyl) piperazinyl} acetohydroxamic acid dihydrochloride. These compounds have been found to have at least one of anti-inflammatory, anti-anaphylactic and anti-depressant activity.

Abstract: The single-sided microwave applicator has a section of a microwave waveguide with an open end for receiving microwave energy and an end which is electrically shorted. A slot is located in one of the wide sides of the waveguide extending along the center line from the shorted end. A conductive ridge is mounted within the waveguide extending upward from the other side through the slot. One end of the ridge is connected to the shorted end of the waveguide, while the other end of the ridge is tapered from a point within the slot. The slot is generally in the order of 3/4 to 1 inch and at least 21/2 inches long, when the operating frequency is 2450 MHz. Since one end of the waveguide is shorted, standing waves are produced resulting in a non-uniform field having at least one maximum along the length of the slot. The electric field produced is non-radiating and its strength diminishes exponentially above the slot.

Abstract: A composition for forming pressure- and heat-sensitive coatings comprising finely divided organic material of particle size from about 0.05 to 10 micrometers in diameter having a melting point above about 150.degree. C., the particles being of substantially uniform color and subject to plastic flow by heat or pressure, and a liquid carrier normally including a binder dispersed in the carrier to give a thixotropic gel. The composition optionally includes water-soluble or dispersible dye or a pigment uniformly dispersed in said particles. A method of preparing the compositions comprises precipitating the solid organic material in water, normally incorporating a binder, and optionally incorporating coloring material into the organic material to form a gel-type paste.

Abstract: Chemical compounds resulting from the mixing of organosilanes and quinones in the presence of di-tert-butyl peroxide as a sensitizer, exhibit strong blue phosphorescence. These compounds are highly resistant to deterioration by heat and UV irradiation. The unique feature of enhanced phosphorescence quantum efficiency at high temperature makes these systems most suitable for solar pumped lasers which usually will operate at relatively high temperature.

Abstract: A process for producing a detoxified protein concentrate product from defatted oilseeds, particularly those of the thioglucoside and phenolic containing types such as rapeseed, mustard or Crambe, in which dehulled, defatted seeds are extracted with an aqueous alcohol solvent under substantially non-oxidizing conditions, so as to prevent oxidation of the contained phenolic compounds and inhibit enzymic degradation of the glucosinolates. The solid residue of the extraction is dried at a temperature below about 60.degree. C.

Abstract: The compound 5-methoxymethyldeoxyuridine has been found to have useful therapeutic properties. Animal tests have shown antiviral activity against herpes simplex viruses, e.g., in treatment of herpes keratitis and herpes encephalitis. An enhanced activity has been observed when administered in conjunction with arabinosyl adenine. Immunostimulant properties have also been observed in vivo.

Abstract: An attractant mixture for male moths of the army cutworm Euxoa auxiliaris (Grote) is described. The attractant is based upon a mixture of Z-5-tetradecen-1-yl acetate and E-7-tetradecen-1-yl acetate, in ratios within the range of about 1/99 to about 20/80, preferably 5/95 to 10/90. The attractant is specific for this species and is useful for trapping and monitoring purposes. Attractant inhibitors are also described.

Abstract: A process for preparing ultra-filtration membranes and the product thereof, in which a selected cellulosic-ester polymer solution is cast into a thin film, at about ambient temperature, partially dried and immersed in a gelation bath at -20 .degree. to +30.degree. C. The gelation bath contains a sufficient percentage by volume of ethyl alcohol or other organic polar compound to ensure that a flux rate in excess of the initial minimum is achieved. In this way, ultra-filtration membranes having water flux rates selected from within the approximate range 14-10,000 gals./sq.ft./day at 100 psig and a molecular weight cut off above about 15,000, can be produced.

Abstract: The precision measuring amplifier includes one or more amplifiers, a number of fixed attenuators, a RMS detector and a logarithmic converter for converting the output of the RMS detector to a logarithmic value. A number of fixed voltage sources each providing a voltage precisely related to the attenuation of a corresponding attenuator, are selectively coupled to a summing amplifier to which the logarithmic converter output is also connected. The number of attenuators connected either manually or automatically into amplifier apparatus at one time is dependent on the input signal level, and for every attenuator connected into the amplifier apparatus, a voltage source is connected to the summing amplifier to provide an output signal proportional to the logarithm of the RMS value of the input signal.

Abstract: This invention relates to the treating of wood surfaces with a solution of selected boron compounds in order to preserve bondability during drying or storing. Effective compounds are borax and boric acid which are applied in an aqueous solution to the wood surface prior to drying or storing.

Abstract: A wood preservative composition having deep penetration capability, leaving a clean surface and imparting high retention of active preservative within the wood, which consists primarily of (a) an organic wood preservative agent, (b) a hydrophobic agent, and (c) small amounts of an amorphous vinylic-type polymer, in a penetrating organic solvent. The preservative may be pentachlorophenol, an oxathiin compound or other preservative preferably of low mammalian toxicity. The hydrophobic agent may be fatty acids and their esters, fatty alcohols and paraffin waxes. The amorphous polymer may be a polystyrene, a polymethylmethacrylate, a polyvinylformal, an atactic polypropylene or other such amorphous polymer. The penetrating solvent may be most suitably chloroform, methylene chloride, trichloroethylene or liquefied petroleum gas, although others may be used. Solutions suitable for deep penetration pressure treatment are preferred.

Abstract: Apparatus for thermal spraying powdered material onto a substrate. The apparatus consists of an elongated conductive tube, an electrode positioned coaxially within one end of the tube. Inert gas such as helium is mixed with a powdered material such as a ceramic or a metal and a controlled amount is injected evenly into the tube. A high energy pulse is applied between the electrode and the conductive tube to produce current sheets which move from one end of the electrode to the other forming a high temperature and velocity plasma for melting and discharging the powdered material at a high velocity from the other end of the tube.

Abstract: A point-to-point high frequency communications system has a first set of frequency channels for transmission between a first terminal and a second terminal, and a second set of frequency channels for transmission between the second terminal and the first terminal. The channel evaluation apparatus includes a sounding transmitter and receiver at each terminal. These equipments operate in parallel with the regular communications system and provide the facility for real-time evaluation of all assigned channels using a sampling technique. Each sounding transmitter periodically transmits sounding signals in time-step sequence through its respective frequency channels to the sounding receiver at the other terminal. The sounding signals for each channel are evaluated for transmission quality and this information is displayed.

Abstract: Snack food products in the form of puffed or expanded chips, are prepared from non-oilseed legume-base flours, which are difficult to process due to stickiness at usual dough solids contents, by using a non-sticky low solids content fluid slurry. The slurry is fed to a drum dryer and successive layers are built up into a multilaminar sheet. When this sheet is dry and the starch therein gelled, it is removed and reduced to pieces of chip size which are then fat-fried. An improved texture and structure is developed using this slurry-multilaminar sheet-fat-fry technique.

Abstract: Method and apparatus for separation of bitumen from tar sands involving an electric flotation cell formed of a container in which is placed a charge of unseparated tar sand to a first level and which is then filled with water to a second level and electrodes positioned in the cell in relation to the tar sand such that on application of a voltage to the electrodes an electric current flows through the tar sand and water. It has been found that after application of the electrical energy to the tar sands agitation and then separation takes place with the bitumen being floated to the upper surface.

Abstract: A method and apparatus for beneficiating crushed raw coal comprising: cleaning the crushed coal in bulk in cyclone separators using only water as a cleaning medium and obtaining a product of wet clean coal and wet reject material and also a stream of effluent; drying said wet clean coal and wet reject material by agglomerating after the addition of a small amount of oil and then centrifuging to obtain a product of clean dry coal and solid reject material and also a stream of effluent; treating the effluent stream from the cleaning step and the effluent stream from the drying step by means of flocculation to recover a product of coal and reject sludge which is returned to pass through the drying step again; and thus obtain clean water which is recycled and applied to the input of the cyclones in the cleaning step.

Abstract: N-mono-substituted derivatives of diamino acids are prepared by the reaction of succinimidyl esters of carboxylic acids or substituted carbonic acids with the unprotected diamino acid. The acylation preferentially occurs at the side chain or terminal amino group of the diamino acid. For example, selective acylation of the terminal amino group of lysine occurs without first having protected the 2-amino group. Such acylation has application in the preparation of inter alia N.sup.6 -palmitoyl-lysine.

Abstract: An adaptive delta modulation system wherein the input analog signal is periodically sampled and a binary bit is generated for each period, the logic level of the binary bit being dependent on whether the sampled signal is greater or smaller than the approximate signal of the previous sample. Decoding apparatus converts the stream of binary bits to approximate the analog signal by periodically charging or discharging a capacitor integrator by predetermined variable steps. The charging or discharging of the integrator during each period is determined by the logic level of the binary bits, whereas the increase or decrease in step size for successive periods is determined by successive similar signal binary bits or successive dissimilar bits, respectively. The increase or decrease in step size is achieved by storing a binary step size number S in a register and adding or subtracting a fraction of the number to or from itself during each period, producing a new step size number for each period.

Abstract: A method for preventing greening due to chlorophyll formation in raw unpeeled cold-stored potato tubers exposed to light prior to and including retail sale which comprises spraying or dipping the tubers in an aqueous emulsion containing a single surfactant so as to form a thin continuous film in and on the surface of the tuber which is relatively impermeable to carbon dioxide thereby ensuring an atmosphere containing at least 15% CO.sub.2 within the film and in the tuber. The surfactant preferably contains long chain fatty acid moieties and polyoxyalkylene or polyhydroxy moieties, and has an HLB rating below about 15. A modified process involves the addition of an organic acid, selected from aliphatic mono- and polycarboxylic acids having from 2-6 carbon atoms and at least one hydroxy or oxo group, and lactones thereof, excepting those dicarboxylic acids which readily form internal anhydrides, to the surfactant mixture in order to "tighten" the surfactant film formed on the tubers under treatment.

Abstract: The voice processing system for radio telephone consists of a compressor in the transmitter and an expander in the receiver. The compressor divides the input voice signal into syllabic groups and applies a gain to each syllabic group depending on the peak amplitude of the signal of the respective group, resulting in a reduction or compression of the dynamic range of the voice. The expander on the other hand increases or expands the dynamic range of the signal restoring the voice to its original form. The compressor and expander are synchronized such that the amount of expansion or instantaneous gain in the receiver is exactly the reciprocal of the amount of compression in the transmitter, i.e. when the gain of the compressor is N, the gain of the expander is 1/N. In this way the total system gain is always unity and is therefore transparent to voice and other analog signals passing through it.