Abstract: A catalytic reactor for carrying out conjugate chemical reactions, comprising a body with a system of plates arranged in said body parallel to one another and having their edges built into said body, said plates being made of a material selectively permeable to a reactant common to the reactions to be conjugated and possessing catalytic activity with regard to the both reactions being conjugated.The said plates subdivide the inner space of the reactor body into a plurality of chambers intercommunicating in an alternate pattern through the intermediary of channels provided in the walls of the reactor body, so that two compartments are formed, each of these compartments serving for carrying out one of the two reactions being conjugated.

Abstract: An audio-visual teaching machine for speedy training comprising an operator's console intended for switching various educational programs and units in a required sequence; an educational information unit designed for playing back pre-recorded lesson information, instructions and service signals, its input being connected to an output of the operator's console; an audio-visual display unit for presenting aural and visual information to the student, the input of which being connected to an output of the educational information unit; an answer registering unit for registering the student's answers to educational information queries, its output being electrically connected to an input of the operator's console, comprises, according to the invention, a student's performance control unit which is a facility for producing signals to control the student's psychophysiological condition and his performance, an input of said control unit being connected with a respective output of the operator's console, and one output

Abstract: The present method provides for the use as criterion the coefficient m of a deviation of the actual current-voltage characteristic of the p-n junction of a semiconductor device or integrated circuit under test obtained by applying a varying current in the forward direction through a p-n junction. The form of a current variation is chosen such that if the p-n junction has an ideal current-voltage characteristic ##EQU1## the current variation causes constant voltage increments through the p-n junction over the entire range of current values I. It means that for a p-n junction with an actual current-voltage characteristic ##EQU2## the increments obtained will be constant and proportional to the coefficient m. The apparatus for effecting the present method comprises at least two current generators controlled by a current controller, ensuring interrelated currents at their outputs. The current controller ensures that relative variations of each of the currents are equal.

Abstract: The invention relates to metal-ceramics based on high-melting oxides and metallic chromium.The distinguishing feature of the ceramic cermets of this invention resides in the fact that chromites of rare earth metals, yttrium chromite of scandium chromite are used as the high-melting oxides.

Abstract: A powder-cored strip electrode for surfacing with abrasion-resistant composite alloys, is made up of a metal casing filled with a powdered charge, with said metal casing being made, according to the invention, from copper or a copper-base alloy comprising 0.2-29.5 weight per cent nickel, or from a copper-base alloy containing nickel in combination with 0.3-1.8 weight per cent aluminum and 0.3-13.0 weight per cent manganese, taken separately or in combination, and the powdered charge comprises in weight per cent of the total weight of the electrode tungsten carbides 45-70 with the remaining material being nickel, manganese, magnesium, aluminum, flourinated polymers, titanium and nickelic oxides.______________________________________ tungsten carbides 45-70 nickel 0.3-10.5 manganese 0.5-11.0 magnesium 0.2-1.0 aluminum 0.2-1.0 fluorinated polymers 1.5-3.0 titanium 0.3-0.6 nickelic oxides 0.5-1.

Abstract: Single crystals based on stabilized zirconium dioxide or hafnium dioxide, wherein used as the stabilizer is scandium oxide or an oxide of one of the rare-earth elements. The content of components in a single crystal is as follows (mol.%):______________________________________ zirconium dioxide or hafnium dioxide 70-95 stabilizer 30-5. ______________________________________The single crystals of the present invention may also contain coloring agents in an amount of 0.01 to 5% of the single crystal weight.

Abstract: A process for the preparation of synthetic zeolites comprising mixing zeolite powder of a particle size not exceeding 5 mcm with a natural binder of a particle size of 250-500 A. The resulting mixture is wetted with water and pelletized, the pellets thus obtained being calcined at 600.degree.-700.degree.C.

Abstract: A method for carrying out simultaneously the catalytic reactions involving the evolution and consumption of hydrogen, which comprises conducting the reactions in a reaction space divided by a partition made from a material that is selectively permeable to hydrogen only and serves as a catalyst.

Abstract: A device for geophysical prospecting of ore deposits, wherein the supply circuit is made up of a direct-current source provided with apparatus for changing current intensity, a main current-carrying electrode having electrical contact with an ore body, and an auxiliary current-carrying electrode electrically connected with the medium enclosing said ore body. Connected in said supply circuit is a current intensity detector connected whereto is a series circuit made up of a compensating voltage generator, a summing unit and a unit for measuring the potentials of electrochemical reactions on the surface of the ore body. The latter unit is connected to the main current-carrying electrode. The device includes a unit for setting the time of excitation by direct current of the ore body and comprises, according to the invention, a series circuit made up of a unit for setting values of the potentials of electrochemical reactions on the surface of the ore body, a comparator and a control unit.

Abstract: The method consists in that immediately prior to surgery the difference between the maximum and minimum lengths of the R--R intervals for a predetermined number of heart contractions of the patient to be operated on is measured, this measured difference being accepted as a standard. Then, in the course of operation, the current values of difference between the maximum and minimum lengths of the R--R intervals for the same predetermined number of heart contractions are measured. Deviations of the measured current values of difference from the initial or reference value of difference between the maximum and minimum lengths of the R--R intervals characterize the degree of incompetence of anaesthesia and the level of anaesthesia. The means realizes the method by processing the data furnished by ECG electrodes applied to the body of the patient undergoing surgery.

Abstract: A method of obtaining a titanium tanning agent, based essentially upon sulfuric-acid treatment of titaniferous material followed by precipitating from titanium sulfate solution ammonium titanyl double sulfate monohydrate with subsequent treatment of that salt with ammonium sulfate solution to obtain the compound of titanium sulfate as a tanning agent. Methods of tanning using conventional techniques require up to 10 per cent of the titanium tanning agent by weight of the pelt calculated as TiO.sub.2.

Abstract: Hydrogenation and hydrodealkylation catalysts of aromatic hydrocarbons comprising a palladium alloy with molybdenum, containing from 0.1 to 30 percent by weight of molybdenum.The catalyst can be manufactured in the form of powders, blacks, membranes, foils or tubes and employed in the processes of hydrogenation and hydrodealkylation of aromatic hydrocarbons carried out either separately or simultaneously.