SUBSTANCE: invention relates to nanotechnology and the food industry. Process for preparing spirulina nanocapsules in guar gum a gum is characterized in that guan gum is used as the nanocapsule coating, and the spirulina powder is used as the core, the spirulina powder being added to the suspension of guar gum in benzene, in the presence of 0.01 g of E472c as a surfactant, then stirred at 1,000 rpm, after 1,2-dichloroethane is added, after which the resulting suspension is filtered and dried at room temperature, wherein the core: shell weight ratio is 1:1, or 1:3, or 1:2.
EFFECT: method for the preparation of spirulina nanocapsules is proposed.
1 cl, 3 ex
SUBSTANCE: invention relates to nanotechnology, medicine, and food industry. Method for obtaining nanocapsules of a dry hop cone extract is characterized in that sodium nanoparticles are used as the nanocapsule coating, and as a kernel – a dry extract of hop cones is used, while the dry extract of cones of hops is added to a suspension of sodium alginate in petroleum ether in the presence of 0.01 g of glycerol ester with one or two molecules of food fatty acids and one or two molecules of citric acid as a surfactant with stirring at 1,000 rpm, halocarbon-113 is added further, the obtained nanocapsule suspension is filtered off and dried at room temperature, with a core: shell weight ratio of 1:1, 1:2 or 1:3.
EFFECT: method for obtaining nanocapsules of a dry extract of hop cones is proposed.
1 cl, 3 ex
SUBSTANCE: invention relates to pharmaceutical industry and biotechnology, namely to means for delivery of an active agent comprising a liposomal suspension complex with a chitosan conjugate which is a compound of formula (C6O4H9NH2)m(C6O4H9NHX)n, wherein the substituent on the amino group X is a monomethoxy-PEG succinate, m and n are the number of units in the molecule, the m/n ratio being 6 to 19, and chitosan is used with a molecular weight of 15,000 to 120,000 Da, while liposomes are associated with the chitosan conjugate non-covalently.
EFFECT: invention provides improvement in stability of liposomal suspensions.
1 cl, 4 dwg
SUBSTANCE: invention relates to the field of nanotechnology, medicine, pharmacology and veterinary medicine. Method for preparing metronidazole nanocapsules in guar gum is characterized in that guan gum is used as the nanocapsule coating, as the core, metronidazole, while metronidazole powder is added to the suspension of guar gum in benzene and 0.01 g of preparation E472c used as a surfactant, then 6 ml of butyl chloride is added, the resulting nanocapsule suspension is filtered off and dried, wherein the core: sheath mass ratio in nanocapsules is 1:3, 1:1, or 1:2.
EFFECT: method for preparing metronidazole nanocapsules is proposed.
1 cl, 3 ex
SUBSTANCE: invention relates to medicine, surgery and orthopedics. Implant for replacement of bone defects is made of carbon-carbon composite material. Material contains a porous matrix of crystalline carbon fibers with an interlayer distance of 3.58…3.62 angstrom, with a total amount of fiber 20…80 %. Further, the filler material consists of crystalline carbon with an interlayer distance of 3.42…3.44 angstroms in the amount of 50…70 % and amorphous carbon in the form of coke in an amount of 10…20 % of the total pore volume of the matrix. At the same time, carbon nanotubes are introduced into amorphous carbon in the amount of 0.05…1.0 % of the mass of amorphous carbon.
EFFECT: invention makes it possible to increase the efficiency of using an implant to replace bone defects by increasing the safety factor of bone strength when replacing its defect.
FIELD: medicine; pharmaceuticals.
SUBSTANCE: present invention relates to a film-coated tablet comprising a first film coating layer comprising hydroxypropyl methylcellulose and a second film coating layer comprising polyvinyl alcohol. Tablet contains granules consisting of choline alfoscerate as an active ingredient, magnesium aluminometasilicate as an additive, low-substituted hydroxypropylcellulose, microcrystalline cellulose and hydroxypropylcellulose, and a pharmaceutically acceptable excipient. Magnesium aluminometasilicate is present in the tablet in an amount of 0.35 to 0.45 part by weight per 1 part by weight of choline alfoscerate. Method for the preparation of a choline alfoscerate tablet with a double film coating is also described. Tablet of the invention is prepared by a conventional tablet manufacturing method, which is the least expensive. For the tablet obtained, the softening and hygroscopicity of choline alfoscerate is prevented.
EFFECT: choline alfoscerate tablet of the invention is manufactured with a size suitable for oral administration.
11 cl, 3 dwg, 8 tbl, 3 ex
FIELD: veterinary science.
SUBSTANCE: group of inventions refers to veterinary medicine and concerns the reducing the reproductive capacity of mammals. To this end, the composition is introduced in the form of a fed bait containing the epoxide 4-vinylcyclohexene diepoxide (VCD).
EFFECT: components of the composition provide a synergistic reducing of the reproductive capacity of mammals due to the unrecoverable primordial follicle depletion in female mammals and fertility reducing up to ultimate sterility, in male mammals without negative impact on animals health.
17 cl, 16 dwg
SUBSTANCE: invention relates to medicine, in particular to a method for the preparation of a lysozyme-containing biologically active additive, comprising the reception and preparation of eggs, separation of egg contents into protein and yolk, introduction of salt into the protein salt at a concentration of 0.4 % and acid ascorbic concentration of 7 %, heating to a temperature of 65–70 °C for 15–20 minutes, filtration, drying of the hydrolyzate in the vibro-boiling layer and subsequent packing.
EFFECT: invention makes it possible to obtain lysozyme with increased yield.
1 cl, 2 ex, 4 dwg
SUBSTANCE: invention relates to medicine, in particular to experimental pharmacology. Method is proposed for inhibiting the nuclear factor kappa B in a cell culture comprising adding a bacterial lipopolysaccharide at a concentration of 1 mcg/ml to a freshly isolated standard ficoll density gradient test for mononuclear blood cells of Wistar rats, characterized in that 2-ethyl-6-methyl-3-hydroxypyridinium L-2,6-diaminohexanoate is then added to this mixture at a final concentration of 35 mcg/ml.
EFFECT: technical result consists in the expressed inhibition of the nuclear factor kappa B in the cell culture and in the favorable safety profile.
1 cl, 1 tbl
SUBSTANCE: invention relates to medicine and can be used to determine the functional state of the hemostasis system. To do this, measure the recording amplitude of the clotting process at the beginning of the process. Determine the indices of the beginning and the end of the coagulation process of the electrocoagulogram of the blood. They are compared with the same indices of the process of blood coagulation in norm and with differently directed deviations. And they diagnose a violation of the functional state of the hemostasis system. In this case, the time constant and the limiting voltage according to the calibration characteristics are determined. Calibration is carried out a priori for two measured U1, U2 and the known U01, U02 values of the bottom t1 and the upper t2=kt1 boundaries of the adaptive range. Calibration characteristics are the function of the limiting blood pressure U0i, which compensates for the uncertainty of T0i time constant T0, and the time constant function T0i, and also compensating uncertainty U0i of the limiting voltage U0, connecting the reference Uei and the measured Ui characteristics due to the normalization of the measured values known by the calibration characteristics U0i, T0i. Find the real values of the time constant T0 and the limiting voltage U0 blood, on which the calibration characteristic of the limiting voltage U0i blood, the calibration characteristic of the time constant T0i, the reference characteristic Uei. Determine the start of Tn and end Tk the process of blood clotting.
EFFECT: invention allows to increase by 2 orders of magnitude the accuracy of measuring blood clotting time and to increase the effectiveness of identifying individuals from the risk group for hemocoagulation complications.
1 cl, 4 dwg
SUBSTANCE: group of inventions refers to medicine, namely immunology and can be used for treating immunological disturbances. According to the invention tolerogenic composition comprises polystyrene carrier particle, carboxylated polysterene carrier particle, carrier particle of lactic and glycolic acids copolymer or a carboxylated carrier particle of lactic and glycolic acids copolymer, wherein this particle has a negative zeta potential and contains an encapsulated antigen. According to the invention the method comprises administering to the subject an effective amount of a tolerogenic composition.
EFFECT: use of inventions allows strengthening the antigen-specific tolerance in a subject by its stimulation with negatively charged particles of the lactic and glycolic acids copolymer.
25 cl, 39 dwg, 1 tbl, 22 ex
SUBSTANCE: invention relates to medicine. Method for producing a microfiber material by successively mixing a solution of human serum albumin (HSA) in hexafluoroisopropanol (GPIP) and a drug (LS) in dimethylsulfoxide (DMSO) is described, after which the resulting solution is mixed with a solution of polycaprolactone (PCL) in GPIP. Drug is dissolved in DMSO, while the volume fraction of DMSO in the final polymer solution is 0.5–10.0 %, and the volume ratio of solutions PCL:HSA:LS is 1:1:(0.01–0.2). As drugs, paclitaxel, or sirolimus, or diclofenac is used.
EFFECT: microfiber material has increased elasticity, increased duration of drug release from the composition of the material.
4 cl, 2 dwg, 9 ex
SUBSTANCE: invention relates to the field of medicine, namely to disinfectology, and is intended for high level disinfection of endoscopes, as well as medical devices and surfaces in case of infections of bacterial, viral and fungal etiology in medical institutions. In the method, a liquid disinfectant composition is prepared by mixing 50 ml of base and 50 ml of activator and then dissolving in 500–5,000 ml of deionized water. Said base additionally contains citric acid, tungstic acid salt, phosphoric acid, glycerol and benzotriazole. Said activator consists of sodium chlorite. Components are used in claimed amounts.
EFFECT: use of the invention provides high antimicrobial activity, the possibility of using high level disinfection of endoscopes, indifference to materials and equipment, good solubility in water, activity at minimum concentrations of active ingredients and shortest exposure times.
1 cl, 14 ex
SUBSTANCE: invention relates to medicine, namely biological chemistry, and can be used to determine the effect of drugs on the classical pathway of complement activation by studying the hemolytic activity of complement. To do this, 50 mcl of blood serum from ½ to 1/128 of blood serum are added to 50 mcl each before dilution in a saline solution to a concentration of 10-2 M, preliminary incubation is carried out at a temperature of 4–6 °C for 30 minutes, then add 50 mcl of sensitized erythrocytes of ram and veronal buffer. Then the cells are re-incubated, the supernatant is taken out and its optical density is determined at 450 nm, and complement fixation (C%) with sensitized erythrocytes in the presence of the studied preparations is calculated by the formula: C%=(Eo-Ec)/Eo-100, where: Eo – optical density in the presence of the preparation, Ec – the optical density of the control, which is used as a veronal buffer. Value of C is judged on the effect of the drug on the C1q subcomponent of the first component of the classical complement pathway in terms of the degree of hemolysis of the sensitized erythrocytes of the sheep.
EFFECT: use of this method makes it possible to make a comparative quantitative assessment of the degree of influence of the tested drugs on the classical pathway of complement activation.
1 cl, 2 dwg, 2 ex
SUBSTANCE: invention relates to medicine and is intended for prevention of diabetes. Pentaamino acid derivatives of fullerene C60, containing as amino acid residues the remains of the main natural amino acids: glycine, alanine, serine, arginine, valine, threonine, leucine, cysteine, lysine, isoleucine, asparagine, glutamine, methionine, phenylalanine, aspartic and glutamic acids, as well as proline, tyrosine and dihydroxytyrosine.
EFFECT: method reduces the likelihood of developing type 2 diabetes.
1 cl, 4 dwg, 8 tbl, 5 ex
SUBSTANCE: invention relates to the field of medicine, more particularly to orthopedic dentistry, namely to a method for treating denture products from acrylic plastics, according to which the product is held in a liquid medium at a ratio of product volumes to a liquid medium of 1:1, while either an aqueous solution of alkali with a concentration of 15 %, or an aqueous solution of hydrochloric acid with a concentration of 10 %, is used as a liquid treatment medium, wherein the product is held in a liquid medium for a period of 24 hours, after which the product is washed with water until the traces of said liquid medium are completely removed.
EFFECT: invention provides an expansion of the assortment of liquid media used and a shortening of processing time up to one day, sufficient to remove the residual monomer below the MPC level from the surface layers of the article.
3 cl, 3 tbl
FIELD: technological processes.
SUBSTANCE: invention relates to the formation technology of ohmic contacts to AlGaN/GaN heterostructures and can be used in the manufacture of semiconductor devices, in particular microwave field effect transistors. After the growth of a high-alloy semiconductor material (n+GaN), which is in contact with a two-dimensional electron gas of the AlGaN/GaN heterostructure, and stripping a dielectric mask, high-temperature annealing of the heterostructure with a high-alloyed semiconductor material at a temperature of 600–650 °C for 10–15 minutes in a nitrogen medium.
EFFECT: decrease in the resistivity of ohmic contacts.
1 cl, 1 dwg
FIELD: food industry.
SUBSTANCE: invention relates to the canning industry, namely, the canning of sweet cherry compote. Method is characterized in that the fruits laid in the can are heated by cyclic injection of saturated water vapor at a temperature of 105–110 °C for 110 s. Duration of the steam supply and holding cycles is 10 s and 10 s, respectively. During the whole process of steam supply, the outer surface of the cans is blown by a stream of air at a speed of 5–6 m/s, heated to a temperature of 110–120 °C. After that, a syrup with a temperature of 95–97 °C is poured into the cans, they are preliminary rolled by covers and heated in a stream of air at a temperature of 150 °C and a speed of 6.5–7 m/s for 5 minutes. Then the covers are rolled up and the heating is continued in hot water with a temperature of 100 °C for 12 min with further stepwise cooling in water with temperatures of 80, 60 and 40 °C, respectively, for 6, 6 and 6 minutes.
EFFECT: invention makes it possible to reduce the duration of sterilization, to reduce the unevenness of heat treatment, and also to prevent the thermal battle of the cans and to improve the quality of the finished product.
FIELD: food industry.
SUBSTANCE: way of production of sweet cherry compote includes the preparation and packaging of fruits in cans with their subsequent processing in a microwave field with a frequency of 2,400+50 MHz for 1.5 minutes. Then the fruits are poured into syrup with a temperature of 98 °C, re-treated with a microwave field for 2.0 min, the contents of the cans are heated to 90 °C and sealed. Cans are then sterilized in water at 95 °C for 30 minutes, without creating back pressure in the apparatus, while the cans are in the upside down position. After that they are cooled for 18 minutes in water, reducing its temperature from 95 to 40 °C.
EFFECT: method reduces duration of heat treatment, thereby improving the quality of the finished product.
FIELD: food industry.
SUBSTANCE: method for producing sweet cherry compote is that the fruits after being packaged in cans are heated for 100 seconds by cycling the superheated steam at a temperature of 105–110 °C to the cans. Duration of cycles of supplying steam and holding is 10 s and 10 s respectively. During this whole process, the outer surface of the can is blown with air heated to 110–120 °C. Then a syrup with a temperature of 98 °C is poured into cans, sealed, placed in a carrier, preventing the lid prying off the can during the heat treatment. Further, heat treated in a bath with a solution of calcium chloride with a temperature of 110 °C for 18 min, followed by cooling in a stream of atmospheric air at a temperature of 20 °C and a speed of 6.0–7.0 m/s for 20 minutes. During the cooling process, the cans rotate from the bottom to the lid at a frequency of 0.13 s-1.
EFFECT: technical result is a reduction in the duration of the process, preservation of biologically active components of raw materials, reduction of the number of overdone fruits and fruits with cracked peel.
FIELD: food industry.
SUBSTANCE: method of preserving the compote from the plum is that the fruits laid in the jar are heated by cycling the saturated steam with a temperature of 105–110 °C for 80 s. Duration of the steam supply and holding cycles is 10 and 10 s, respectively. In this case, the outer surface of the cans is blown by a stream of air at a speed of 5–6 m/s, heated to temperature of 110–120 °C. After that, a syrup with a temperature of 95–97 °C is poured into the cans, subjected to their preliminary rounding-up lids and heating in a stream of air with a temperature of 150 °C and a speed of 6.5–7 m/s for 3 minutes. Then finish rounding-up lids and continue heating in hot water with a temperature of 100 °C for 6 min with further stepwise cooling in water with temperatures of 80, 60 and 40 °C, respectively, for 4, 4 and 4 minutes. In the processes of hot water heating and cooling, the banks rotate from the bottom to the cover at a frequency of 0.12 s-1.
EFFECT: invention makes it possible to reduce the duration of sterilization, to reduce the unevenness of heat treatment, and also to prevent the thermal battle of the cans and to improve the quality of the finished product.
FIELD: food industry.
SUBSTANCE: invention relates to the food industry, in particular to a confectionery, and can be used in the manufacture of confectionery products. Method for manufacturing a confectionery product is proposed, comprising making a leg from a pastry confectionery product in the form of a cookie with an outer end portion and an inner end portion, placing the outer end portion opposite the inner end portion, the cap of the confectionery semi-finished product in the form of a glaze with a convex surface and a flattened surface, placing the convex surface against the flattened surface, forming the end surfaces and the side surfaces on the outer end portion and the inner end portion, bonding the end face and the side surface of the inner end portion to the glaze due to adhesion forces by immersing them in pasty glaze, from the side of the flattened surface, up to the convex surface, forming glaze protrusion and fixing it to a part of the surface of the inner end portion mating with the side surface of the outer end portion, fixing and securing the leg, cap and protrusion, while placing the pasty glaze in the molding cavity of the tooling, the leg is placed over the pasty glaze, immersing in the pasty glaze the inner end portion, bonding the end face and the side surface of the inner end portion with the glaze adjacent to them by the adhesion forces, and then simultaneously forming a protrusion and immersing part of the lateral surface of the outer end portion in the pasty glaze adjacent to the inner end portion located on the opposite side of the protrusion, by moving the leg relative to the cap, the leg being moved relative to the cap by turning the leg relative to the cap, the leg being rotated relative to the cap in such a manner that the outer end portion is inclined to the flattened surface and the portion of its lateral surface is immersed in the glaze, and a part of the lateral surface of the inner end portion, with glue paste adhered thereon, is placed over the flattened surface to form the protrusion, and then the leg, the cap and the protrusion are fixed and fixed together by cooling the pasty glaze and solidifying it.
EFFECT: invention provides for the realization of the purpose and simplification of the manufacture of the confectionery product.
1 cl, 7 dwg, 2 ex
FIELD: fodder production.
SUBSTANCE: invention relates to fodder production, namely to method for producing a moist canned food for unproductive animals. Method comprises grinding the raw ingredients, then cutting them, packing the resulting mixture into cans and sterilizing to obtain the final product. Ingredients of animal origin are ground in a top with a lattice diameter of not more than 16 mm. Kuttering is conducted with a simultaneous loading in the interval of 1 min in the following sequence: ingredients of animal origin, which are taken as minced chicken or turkey, beef head meat, collagen-fat component, chicken liver, pork liver, with the addition of water, further emulsifier, gelling agent, blood plasma or blood, then add soy protein or sodium caseinate, fodder additive, taurine, fermented rice, caramel, chicken protein hydrolyzate, animal beef protein and water, the components are taken in a certain ratio.
EFFECT: use of the invention will allow to obtain a high-quality fodder product with high food and energy value.
1 cl, 2 tbl, 2 ex
FIELD: ship building.
SUBSTANCE: invention relates to shipbuilding, particularly to submarine vehicles which break up ice cover. Device for the destruction of the ice cover consisting of a submarine vessel equipped with an anchor is proposed, the diameter of the paws opening must be greater than the length of the cockpit, with the help of a cable providing attachment of the vessel to the ice, and ballast tanks, which filling with the outboard water provides occurrence of the negative buoyancy, sufficient to destroy the ice cover of a given thickness. Point of the rope securing to the submarine should be aligned with the submarine displacement center. Under the ice cover on the anchor line at a distance from each other equal to half the wavelength of the static deflection of the ice, cathode and anode are installed, which are supplied with voltage from a source of direct electric current.
EFFECT: technical result is to increase the thickness of the ice cover to be destroyed.
1 cl, 1 dwg
FIELD: electric power engineering.
SUBSTANCE: invention relates to the production of electricity by converting wave energy without adversely affecting the environment. Float wave power station is proposed that contains a streamlined, sealed float of elongated shape, an electric generator, the rotor of which is connected to the axis of the two drums, one of which is wound with a cable thrown through a block mounted on the aft part of the float and the end of this cable is attached to a vertical pendulum, and a cable is wound on the other drum, thrown through a block installed on the bow of the float, the direction of winding the cables onto the drums is the opposite, at the end of the cable, thrown through the unit mounted on the bow of the float, with the help of the sling is attached at least one horizontally located plate with a counterweight, and on the float in the bow and stern are mounted dampers, through which pass the cables attached to the pendulum and to a horizontally located plate with a counterweight, and on each cable below the dampers are fixed stops. Variants of a wave power plant with pairs of shells concave in different directions, instead of plates and other connection of shells with a float in the nose part are also proposed.
EFFECT: invention will allow the float wave power station to generate electricity in the open sea at any depth of the reservoir without the anchor installed on the bottom.
4 cl, 9 dwg
FIELD: computer equipment.
SUBSTANCE: invention relates to the field of automation and computer technology and can be used in the automation of control objects of the rocket and space area, the technical and launching complexes of the cosmodrome. System introduced decision support system, the meta-object maker of the control object, the automated workplace of the person making the decision, auxiliary control, communication and switching units based on the number of the cosmodrome service systems connected to their system for collecting and processing monitoring and control signals, including input / output blocks for measuring information and control signals, cable connection blocks, sensor and actuator connection blocks associated with sensors and actuators of control objects, and metadata adapters.
EFFECT: preparation time is reduced and the reliability of making decision-making decisions in the process of carrying out technological operations for the preparation and launch of a rocket for space purposes is increased.
4 cl, 8 dwg
SUBSTANCE: group of inventions relates to the field of transport, in particular to bicycles. Bicycle comprises a frame, a front steering assembly rotatably coupled to the frame, a front wheel rotatably coupled to the front steering assembly, and a rear wheel rotatably coupled to the frame. Frame includes an inflatable segment and a valve in communication with the inflatable segment for selectively inflating and deflating the inflatable segment. Inflatable segment is configured to be flexible when deflated so that the frame can be folded for storage. When inflated, the inflatable segment is configured to support the weight of an occupant of the bicycle during operation of the bicycle. Method of storing the bicycle includes two steps: inflating the inflatable segment of the bicycle frame through the valve and folding the inflated inflatable segment for storage.
EFFECT: increased compactness of the bicycle.
20 cl, 7 dwg
FIELD: motor industry.
SUBSTANCE: invention relates to vehicle access systems. Method for identification of a person as a person having a right to drive, comprises the stages at which via at least one electronic camera, installed in a vehicle, a photo of skin of a person requesting access to the vehicle is taken, comparing the time variation of at least one parameter of the captured skin area, performing time variation of the parameters of the captured skin area, comparing with the stored reference data about the rhythm of the heartbeat of persons entitled to access, providing access to the vehicle, if the time variation of the captured skin area parameter coincides with reference data about the rhythm of the heartbeat, wherein the provided access includes opening at least one vehicle door. At least one electronic camera records the area outside the vehicle, wherein the subject requesting access to the vehicle is offered to bring the exposed area of the body to the camera.
EFFECT: higher vehicle safety.
9 cl, 5 dwg
SUBSTANCE: invention relates to railway vehicles, and more particularly to braking transport systems. Railway braking system for a railway vehicle comprising brakes with at least one pad or at least one shoe, contains body (2), service brake (6) with brake piston (8), lever brake drive (4) and parking brake (7). Parking brake (7) comprises locking device (20) and movable control device (23, 24). Device (20) fixes piston (8) in the working braking position. Working chamber (13) can be powered by several pneumatic pressure sources, first and second. When control device (20) is in its stable position, operation chamber (13) receives power from the second source, the pressure of which exceeds the pressure of the first source, to apply a more significant braking force.
EFFECT: increase in the braking force is achieved.
15 cl, 7 dwg
SUBSTANCE: invention relates to a pneumatic tire having a radial structure. Tire comprises belt assembly (3) consisting of at least three layers (8, 9, 10), in particular two working layers (8, 9) and protective layer (10) located radially outwardly from working layers (8, 9). Each belt layer (8, 9, 10) comprises stiffeners (11) consisting of one or more steel threads (12). Stiffeners (11) in each layer (8, 9, 10) of the belt are respectively arranged parallel to each other and are spaced apart from each other. Steel yarns (12) of stiffening elements (11) of protective layer (10) have a thread diameter from 0.10 mm to 0.35 mm. Diameter (14) of the stiffener is from 0.20 mm to 0.85 mm. Each stiffening element (11) of protective layer (10) has a tensile strength of 15 kN/dm to 95 kN/dm. Stiffeners (11) are located in protective layer (10) with a density of 50 to 120 threads per decimeter (yarn/dm).
EFFECT: technical result is an increase in the strength of the tire with a reduction in weight.
1 cl, 2 dwg, 1 tbl
SUBSTANCE: invention relates to determining the integrity of connectors. Electrical connection system comprises a connector defining the surface of the connector, a base and a sealing gasket located between the base and the surface of the connector. Also, there are a plurality of thin film force measuring elements associated with the gasket, connected to a series electrical circuit to form a conductive path through a series electrical circuit in response to forces applied to predetermined locations of the gasket, exceeding the threshold value, which is the amount of force to maintain electrical contact of electrical connections between the base and the connector.
EFFECT: improved reliability of connection.
17 cl, 5 dwg
FIELD: automotive industry.
SUBSTANCE: invention relates to the automotive industry. Pneumatic tyre includes main grooves (20) located in shoulder of tyre tread sections (1) and passing in direction along circumference of the tyre; plurality of ground loosening grooves (41) extending outwardly in the transverse direction of the tire from main grooves (20) and reaching the side portions; and plurality of blocks (42) separated by main grooves (20) and ground loosening grooves (41). Raised portion (50) protruding from blocks (42) is provided on the end portion from the outside in the transverse direction of the tire from blocks (42); protruding portion (50) extending in the circumferential direction of the tire so that it protrudes into grooving grooves (41) located on both sides of raised portion (50).
EFFECT: improved running characteristics of muddy or sandy soils, snow-covered roads.
7 cl, 4 dwg, 2 tbl
FIELD: motors and pumps.
SUBSTANCE: invention relates to outboard motors, namely to motors containing an engine. Outboard motor contains an engine containing a cylinder, a crankshaft, an equalizing shaft, two gears, a drive shaft and a propeller. Crankshaft is located in a horizontal direction perpendicular to the thrust direction. Equalizing shaft is located parallel to the direction in which the crankshaft is located, and the movement of the crankshaft is transmitted to the equalizing shaft. First gear is provided on the compensating shaft, and the slow gear of the first gear is transmitted to the second gear. Drive shaft is connected to the second gear and is located in the direction from top to bottom. Propeller rotates by the movement transmitted by the drive shaft.
EFFECT: reduced weight and size characteristics are achieved.
18 cl, 3 dwg
FIELD: oil industry.
SUBSTANCE: invention relates to the field of geological and hydrodynamic modeling of the development of oil fields. It can be used for the automated selection of the optimal area of application of the cyclic waterflooding technology, and also for the automated selection of the optimum period of the water injection cycle. Said method includes calculating the relative increase in oil production by applying a cyclic waterflood using such parameters, as permeability, well position, borehole pressure, viscosity of reservoir fluids, compressibility of fluids and rocks. It involves calculating the current density of oil reserves using the initial stock density, the accumulated volume of produced oil. It is followed by calculating the complex criterion for the efficiency of cyclic waterflooding. To increase the accuracy of determining the prospective areas for cyclic flooding, in calculating the relative increase in oil production, porosity and the distance between the wells are additionally factored in. Using analytical dependencies a complex criterion for the efficiency of cyclic waterflooding is calculated. Current oil reserves are calculated on the basis of Voronoi cells. For this, a Voronoi grid is constructed on the basis of the coordinates of the active wells. Then, the area of each cell is calculated. Accumulated volume of produced oil from each cell is calculated based on the wells coordinates, which have ever been present in the cell – active and inactive. After that, the current density of oil reserves is calculated using analytical expression. Calculation of the relative increase in oil is carried out for each pair of injection and production wells and for each pair of adjacent layers of interlayers of the accepted geological and hydrodynamic model based on the coordinates of the active wells. Further, the porosity and distance between the wells are taken into account when determining the accumulated oil production for stationary and cyclic waterflooding for each pair of adjacent interlayer layers. And the relative increase in oil production is calculated using a cyclic waterflood according to analytical expression.
EFFECT: technical result is an increase in the efficiency of cyclic waterflooding.
FIELD: drilling of soil or rock.
SUBSTANCE: invention relates to hydraulic drives for rotary drilling located in wells. In the method, the downhole motor comprises a tubular body disposed within it by a helical gerotor mechanism including a coaxially arranged elastomeric plate in the body and a rotor mounted inside the body, the rotation of which is provided by pumping supply of the fluid, the body of the spindle section with the shaft located inside it mounted on an axial support made in the form of a ball-bearing thrust radial multi-row bearing, as well as on the upper and lower radial sliding supports consisting of the outer and inner bushes located in the body of the spindle section and, accordingly, on the spindle section shaft, the shaft of the spindle section is fastened at the input by the drive shaft with the motor rotor, and the output is fastened to the chisel, the motor and spindle sections are fastened together with a threaded sub-adapter, and the lower radial support of the spindle section is fixed with a nipple, the body of the spindle section and the nipple are fixed with a common thread. Further, the body of the spindle section contains a belt of increased stiffness, characterized by the implementation of the wall of the body of increased thickness, located upstream of the fluid from the plane of the section of the body of the spindle section along the valley of the first mating thread of the pin to the plane of the cross-section of one of the downstream rows of balls of a ball-bearing thrust-radial multi-row bearing. Moment of inertia Jm of the cross section of said reinforced stiffener belt in the spindle section body and the moment of inertia Jv in the cross section of the spindle section shaft in the plane of each of the rows of the ball-bearing thrust-radial multi-row bearing located upstream of the fluid from the increased stiffness belt in the body of the spindle section are connected by the relation: Jm=(6.25÷8.25) Jv. Diameter Dm of balls, outer diameter Dn of bearing and inner diameter Dv of the bearing are connected by the relation: Dm=0.5(Dn-Dv)-(0.155÷0.235) (Dn-Dv), and the number of balls in each row of bearings, the diameter Dm of the balls and the diameter Dcp of the bearing in the center of the balls are connected by the relation: z=[πDcp/Dm]-1, where π=3.14159… – a mathematical constant equal to the ratio of the circumference to its diameter, and the z number of balls in each row of bearings is rounded to an integer.
EFFECT: reliability and resource of the engine, the accuracy of penetration of inclined and horizontal wells, the rate of the set of curvature parameters of the wells, and also the patency, id est, the resistances and stresses in the assembly of the bottom of the drill string decrease as they pass through the radius intervals of the borehole barrel under conditions of friction and rotation in the borehole.
1 cl, 3 dwg
SUBSTANCE: invention relates to construction, namely to the construction of foundations of buildings and structures, in particular to the construction of girder and post waterproof shallow foundations. Method of monolithic erection of a shallow foundation includes excavation, installation of a formwork in working position, placement of concrete into the formwork, foundation formation, removal of the formwork, filling of open ground. Foundation is erected with an external waterproofing coating, for the arrangement of which multi-layer prefabricated waterproofing products installed in the formwork before the placement of concrete are used. Waterproofing products are installed on the inner walls of the formwork with the help of threaded studs, skipped through the products and formwork, the joints are sealed. After forming, the formwork is removed from the studs and nuts are screwed onto the protruding threaded ends of the studs, the waterproofing products are fixed on the foundation by means of the nuts.
EFFECT: technical result consists in shortening the terms and improving the quality of foundation works for the erection of the waterproof foundation by using the removable formwork with prefabricated waterproofing installed therein.
3 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: invention relates to rotational drives disposed in a well, namely to filters for cleaning drilling fluid from mechanical impurities at the entrance to a hydraulic downhole motor. Device comprises a tubular body with threads at the edges, a filter module installed in the tubular body, which includes a filter tube with slotted channels, a fairing located on the inlet side of the tube, an inlet and an outlet sleeve. Filter tube is threaded to the outlet sleeve, the filter module forms a cavity for receiving mechanical impurities inside the tubular body, an elastomer seal is placed between one of said inlet or outlet bushings and the tubular body. Filter tube is designed with an axial displacement of adjacent slot channels relative to each other, in the circumferential row of slit channels located at the outlet of the filter tube, each slit channel is located between a pair of adjacent slit channels made with an axial displacement. Fairing is made with an outer centering belt, the inlet sleeve is made with outwardly directed ribs, mounted on the outer centering belt of the fairing. Outlet portion of the tubular body is formed with a central opening defining a transverse annular projection directed toward the exit of the tubular body. Output sleeve is provided with a latch mechanism in the form of a collet shank equipped with stops on the petals of the collet shank, cooperating with a transverse annular projection directed towards the exit of the tubular body. Entrance edges of outwardly directed ribs at the points of contact with the outer surface of the inlet sleeve are located upstream of the fluid as compared to the input edges of the said fins located at the maximum radial distance.
EFFECT: resource and reliability are increased due to the reduction of the hydroabrasive erosion of the slot channels at the outlet of the filter tube, the structure is simplified.
5 cl, 5 dwg