easuring and testing (G01)

G   Physics(393877)
G01            easuring; testing(233827)
G01G - Weighing(3835)

Interference suppressor // 2642808
FIELD: physics.SUBSTANCE: invention is designed to isolate signals of moving targets against the background of passive interference during the group rearrangement of the carrier frequency of the probing pulses. Interference suppressor includes the first and the second delay units, a weighting coefficient unit, the first and the second complex multipliers, a weight block, a complex adder, a complex conjugation unit, a switching unit, an accuracy unit, a wiring unit and a two-channel switch interconnected in a certain way and carrying out a coherent processing of the original samples. The signal from the moving target and passive interference, significantly exceeding the useful signal in the quadrature phase detectors, is transferred to the video frequency and converted in such a way that the interference residues are compensated.EFFECT: increasing the signal extraction efficiency of moving targets.11 dwg

System for signal transmission from sensors with analogue output via a two-wireless line (options) // 2642807
FIELD: measuring equipment.SUBSTANCE: invention relates to devices for transmitting signals from analog sensors to a measuring system and can be used in stationary complexes of continuous monitoring of various physical quantities. System for transmitting signals from sensors with an analog output over a two-wire communication line contains a sensor with an analog output, control input node with controlled resistance, whose output is connected to the first end of one of the wires of the two-wire line, whose second ends are connected to the first and second contacts of the receiving unit, which contains a current collector resistor, as well as a source of constant voltage, whose negative bus is the common bus of the receiving node, and the first end of the second wire of the two-wire line is connected to the common terminal of the sensor with an analog output, whose power output is connected to the first end of the first wire of the two-wire line. Receiving unit comprises a current collector amplifier, whose inputs are connected to the terminals of the current collector resistor, and the output is the output of the signal.EFFECT: technical result is increased noise immunity, reliability, reliability of functioning of elements having lower operating voltages.21 cl, 10 dwg

agnetic-resonance visualization using acoustic radiation pressure power // 2642724
FIELD: physics.SUBSTANCE: device contains a magnetic-resonance imaging system for magnetic resonance data collection from the subject in the area of visualization, a system of focused high intensity ultrasound, a processor, wherein the execution of commands causes the processor to control the magnetic-resonance imaging system to collect magnetic resonance data using a pulse sequence. The pulse sequence contains a pulse imaging sequence using acoustic radiation force that contains an exciting pulse, a multi-dimensional gradient pulse applied during the radio frequency excitation of an area of interest which is two-dimensional, so the area of interest has a two-dimensional cross section. The two-dimensional cross-section has a rotational symmetry about the axis of the area of interest, wherein the axis of the area of interest and the axis of the beam are coaxial. The area of interest comprises a predetermined volume that encompasses the target zone and at least a portion of the beam axis. The processor also controls the system of focused high-intensity ultrasound for ultrasonic processing of the target zone so that the ultrasonic processing of the target zone occurred during the pulse imaging sequence using the acoustic radiation force and the image obtained using the impact force is reconstructed, using the magnetic-resonance imaging data. In a medical device operating using a computer-readable medium, a method of operating a medical device for magnetic-resonance imaging using the acoustic radiation force is performed.EFFECT: group of inventions allows to reduce the time of designing the image in real time.14 cl, 6 dwg

ethod for identification of patients with first attacks of acute porphyria // 2642723
FIELD: medicine.SUBSTANCE: clinical and laboratory criteria: gender, age - are determined. History data is determined: intake of new drugs, alcohol, newly diagnosed liver pathology, disease symptoms in the premenstrual period, emotional instability. The presence of tachycardia, arterial hypertension, dyskinesia of the gastrointestinal tract: constipation or diarrhea, nausea and vomiting, pain in the abdomen - are also determined. Presence of urine dark in daylight is identified. The presence of muscle weakness in the form of tetraparesis, paraparesis, hemiparesis is determined. The presence of a violation of urination and defecation control; violation of sensitivity are revealed as well, body temperature, appearance of hallucinations and delirium, epileptiform seizures are determined. The presence of dyspnea, facial nerve paresis, bulbar disorders is determined. The presence of leukocytosis of more than 12*109/l and ESR of more than 30 mm/h, bilirubinuria, erythrocyturia, excess reference values of uric acid, urea and hyponatremia are revealed as laboratory indicators. Clinical and laboratory criteria are scored in accordance with Table 1 contained in the description. The derived points are summed up. If the score is less than 5 - acute porphyria is unlikely, from 5 to 15 - porphyria is possible, more than 15 - acute porphyria is highly probable.EFFECT: method allows to effectively and quickly identify patients with acute porphyria due to comprehensive assessment of the most significant indicators.2 dwg, 3 tbl, 3 ex
Diagnostic technique for near-graft infection of joints // 2642659
FIELD: medicine.SUBSTANCE: invention relates to medicine, namely to traumatology and orthopedics and can be used to diagnose periprosthetic joint infection in endoprosthetics. Essence of method: conduct a microscopic examination of smear of aspirate, stained by Gram, and further measuring the concentration of D-lactate using the D-lactam test system, test sample is prepared by adding to the 25 mcl aspirate from the endoprosthetic joint 45 mcl of the enzyme mix and 80 mcl of the substrate mixta, turbidity control is obtained by adding 45 mcl of distilled water and 80 mcl of a substrate mix to 25 mcl of aspirate from the endoprosthetic joint; resulting mixtures are incubated in a thermostat at a temperature of 37 °C±1 °C for 30 minutes and measure the optical density of the mixtures on a plate reader using a 570–600 nm filter. Then optical density of each test sample is subtracted from difference in optical density of turbidity control and empty cell and for each test sample, the concentration is calculated from the calibration schedule and at a D-lactate value of 1.2 mmol/L and more diagnosed as periprosthetic joint infection.EFFECT: highly accurate method for the diagnosis of periprosthetic joint infection has been proposed, which allows fast, within one hour, to identify the presence of infection in the endoprosthetic joint, caused even by hard-to-cultivate microorganisms, which will allow to widely use the claimed method in the departments of traumatology, orthopedics and endoprosthetics.1 cl, 1 tbl, 1 ex
ethod for determination of antibodies to viruses of types 1, 3 polyomyelitis in blood serum // 2642657
FIELD: medicine.SUBSTANCE: invention relates to methods for determination of antibodies to the virus of type 1, 3 poliomyelitis in the serum, where a killed poliomyelitis virus antigen contained in an inactivated polio vaccine and hemolytic serum are added to the serum in modified complement binding reaction, the samples are maintained, then quantification of oxidase enzymes from hemolysed erythrocytes is performed using tetramethylbenzidine. And the presence of antibodies to polioviruses of types 1 and 3 is determined by the degree of erythrocytes lysis spectrophotometrically by the colour index.EFFECT: invention provides a possibility of method implementation in any hospital equipped with an ELISA laboratory, preventing the development of outbreaks of poliomyelitis among the population.2 ex, 2 tbl
ethod for albumin content determination in blood serum by dynamic surface tension results // 2642644
FIELD: veterinary medicine.SUBSTANCE: method for albumin content determination in the blood serum of cows involves measurement of the dynamic surface tension on a tensiometer in a serum sample of 1-3 ml. The obtained values of dynamic surface tension determine the albumin content using the regression-correlation analysis formulas.EFFECT: improved accuracy.2 ex
ethod for prediction of cryoglobulinemic vasculitis development in patients with chronic hepatitis c // 2642626
FIELD: biotechnology.SUBSTANCE: method for prediction of cryoglobulinemic vasculitis development in patients with chronic hepatitis C (CHC) is proposed. A sample of the patient's genomic DNA is obtained, polymorphisms are detected in the ITGB3 1565 T/C and PAI-I-675 5G/4G genes, followed by analysis of their combination. The risk of cryoglobulinemic vasculitis development is determined by the formula.EFFECT: invention allows to isolate a high-risk group for cryoglobulinemic vasculitis development among patients with CHC and to recommend intensive antiviral therapy for these patients.4 dwg, 7 tbl, 6 ex
ethod for prediction of risk of malignant neoplasms development or diagnosis of malignant neoplasms in woman // 2642623
FIELD: medicine.SUBSTANCE: method for prediction of the risk of breast cancer development in a female individual that does not suffer from breast cancer, includes: determination of the level of pro-neurotensin 1-117 with amino acid sequence represented on SEQ ID No. 5, or its fragments from at least 5 amino acids or peptides containing this pro-neurotensin 1-117, obtained from the biological fluid of the specified female individual, selected from the group consisting of blood, serum, plasma, urine, cerebrospinal fluid and saliva, where pro-neurotensin 1-117 level is determined on an empty stomach; and correlation of the specified level of pro-neurotensin 1-117 or its fragments, or peptides containing pro-neurotensin 1-117, with the risk of breast cancer development, where an elevated level is prognostic for the increased risk of breast cancer.EFFECT: method allows to effectively predict the risk of breast cancer development in a female individual.14 cl, 2 dwg, 10 tbl, 5 ex
Set of oligonucleotide primers and probes and method for quantitative determination of fetal dna in blood of pregnant woman based on analysis of hypermethylated fetal dna sections // 2642622
FIELD: medicine.SUBSTANCE: method is proposed for obtaining of DNA primers and probes to determine the presence and the relative amount of fetal DNA in a plasma sample of a pregnant woman. A method and a set are proposed to determine the presence and concentration of fetal DNA in a plasma sample of a woman.EFFECT: effective detection of primer structures corresponding to the differentially methylated regions of the mother and fetus DNA.17 cl, 1 dwg, 4 tbl, 1 ex

ethod for chronic endometritis diagnostics at medium stage of secrection phase // 2642621
FIELD: medicine.SUBSTANCE: invention is intended for chronic endometritis (CE) diagnostics at the medium stage of the secretion phase. Pipelle biopsy of the endometrium using an atraumatic aspiration curette is performed to take a fragment of the uterine cavity mucous membrane at the medium stage of the secretion phase. By quantitative RT-PCR in real time, the mRNA level of the VEGFA gene is determined. At a level greater than 0.250, a conclusion is made about the presence of CE.EFFECT: effective diagnosis of chronic endometritis on the profile of genes mRNA expression in the endometrium during the implantation window in women with tubal peritoneal infertility.2 dwg, 3 ex
ethod of occupational selection of persons for work on destruction of chemical warfare agents // 2642603
FIELD: medicine.SUBSTANCE: invention is intended for the occupational selection of persons for the work on the destruction of chemical warfare agents (CWA). In peripheral blood lymphocytes, the number of chromosomal aberrations is examined. The persons who pass the occupational selection are whose who did not show an increase in the number of cells with chromosomal aberrations which exceed the normal level of spontaneous chromosomal aberrations by more than 2 times.EFFECT: increased objectivity of the occupational selection of persons for the work on the destruction of chemical warfare agents.1 dwg, 4 tbl, 1 ex

ethod of the early postoperative period course estimation in patients operated for chronic rheumatic heart disease // 2642600
FIELD: medicine.SUBSTANCE: invention relates to medicine, namely to cardio surgery and cardioraematology, and can be used to evaluate the course of the early postoperative period in patients operated on for chronic rheumatic heart disease. For this, determining the interleukin-6, C-reactive protein concentration and ferritin in the serum on the 6th day after the surgery. And with the of interleukin-6 values equal to and below 23.70 pg/ml, high-sensitivity C-reactive protein, equal to and below 41.10 mg/L, ferritin, equal to and below 198.70 ng/ml, evaluating the course of the early postoperative period as favorable.EFFECT: method provides the possibility of an objective evaluation of the course of the postoperative period and the appointment of adequate therapy in the case of adverse course in this group of patients.1 cl, 3 ex, 1 tbl

Set of quick tests for presence of explosive materials // 2642599
FIELD: measuring equipment.SUBSTANCE: invention relates to devices for the study and analysis of non-biological materials by chemical indicator means for the purpose of rapid detection of explosive residue in a contact test portion, including during examinations in an off-laboratory environment. The quick tests set for the presence of explosives consists of a portable plastic container equipped with an internal cushioning insert with functional recesses, including recesses for installation of microcolumns, bottles with solutions placed in the recesses, as well as micro-column test systems for detecting the presence of chlorates and perchlorates, cases with rolls tapes of reactive indicator materials containing reagents immobilized on the surface of the carrier. Cases with rolls of tapes of reactive indicator materials consist of a body made of an elastic inert material in the form of hollow cylinders with a coaxial cap tightly adjacent to the cylindrical surface. The side walls of the cases have longitudinal slots through which the edge of the tape passes, and in addition, the body and the cover have mutual angular mobility around the axis, providing, when their longitudinal slots are aligned along one line, before the open window is formed, the function of opening the case with release of the edge of the tape, or mutual overlapping of their longitudinal slots function of hermetic sealing of the case with fixation of the edge of the tape.EFFECT: higher safety of use and simplified operation.9 cl, 2 dwg, 1 tbl
ethod for preterm delivery prediction // 2642597
FIELD: medicine.SUBSTANCE: in pregnant women with retrochoric hematoma (RHG) in the period of 11 weeks to 13 weeks and 6 days the level of β-subunit of placental hormone hCG and protein RAPP-A, expressed in MoM, are analyzed, while for pregnant women with RHG of more than 1 cm3 in volume and PAPP-A level less than 0.7 MoM, the risk of preterm delivery development increases by 9.5 times, and with RHG of the same volume and the level of β-subunit of hCG less than 0.4 MI, the risk of preterm delivery development increases by 5.5 times.EFFECT: accuracy of prediction of the preterm delivery risk is increased.4 tbl, 3 ex
ethod for determination of methyldope concentration in human blood plasma // 2642593
FIELD: pharmacology.SUBSTANCE: method for determination of methyldope concentration in the human plasma includes sampling of an aliquot of plasma, its deproteinization, the obtained mixture is centrifuged, methyldope concentration is measured in the supernatant by high-performance liquid chromatography with tandem mass spectrometry in the range from 0.020 to 3 mcg/ml by a calibration graph; the difference is in the application of a deuterated internal methyldope standard solution in methanol for plasma deproteinization, chromatographic separation of the matrix components uses two chromatographic columns Phenomenex Luna Phenyl-Hexyl (50×3.0 mm, 5 mcm) and Phenomenex Synergi Fusion-RP 80A (150×4.6 mm, 4 mcm), and the electrospray ionization is performed simultaneously with chemical ionization at atmospheric pressure.EFFECT: improved method.1 ex, 5 tbl
Fluorescent method for chemotherapy efficiency prediction in children with acute lymphoblastic leukemia by determination of adenosine triphosphate concentrations in mitochondria // 2642589
FIELD: medicine.SUBSTANCE: invention relates to the fluorescent method for chemotherapy efficiency prediction in children with acute lymphoblastic leukemia by determining the ATP concentrations in mitochondria, for which blood sampling is performed before and after chemotherapy, a fluorescent macro biomarker of chemotherapy efficiency is isolated, where macro biomarker is the ATP concentration in blood cells mitochondria, which is determined automatically, using a laser confocal microscope, through macro biomarker fluorescence intensity recording.EFFECT: invention provides assessment of chemotherapy efficiency, in particular the emergence of hepatotoxic effects and drug resistance during chemotherapy in children with acute lymphoblastic leukemia.1 ex
Immunochromatographic test system for pathogenic helicobacter pylori strains detection // 2642588
FIELD: biotechnology.SUBSTANCE: immunochromatographic test system for detection of pathogenic H. pylori strains based on cagA protein is a multimembrane composite consisting of a nitrocellulose membrane with a membrane impregnated with a monoclonal antibody conjugate, a HP-387 clone at a concentration of 20 mcg⋅cm-3 with nano-particles of colloidal gold with an average diameter of 30 nm, a sample membrane and an adsorbing membrane. Monoclonal antibodies, HP-1811 clone at a concentration of 12 mcg⋅cm-3 are applied to the analytical membrane in the test zone, and in the control zone - goat anti-species antibodies against mouse Ig are applied at a concentration of 10 mcg⋅cm-3.EFFECT: invention provides determination of the said protein in various biological materials.1 dwg, 1 tbl, 3 ex

ethod for selective evaluating hydratcellulose fibres as precursor with production of carbon fibres // 2642561
FIELD: chemistry.SUBSTANCE: method is described that includes heating hydratecellulose fibres, examining their thermochemical transformation into carbon fibres, and determining physical and mechanical properties, characterized in that the test HC-fibres are subjected to derivatographic analysis in comparison with a similar analysis of the HC-sample of the reference fibre, evaluating the obtained data, selecting the test HC-fibres nearest to the reference HC-fibre during pyrolysis is carried out, then the selected HC-fibre is tested for the process of the thermochemical transformation into a carbon fibre using the technology of producing a reference sample and the technology mode for producing the carbon fibre of the test fibre is corrected.EFFECT: high efficiency of selective evaluation and process optimisation in the production of carbon fibres based on new hydrate-cellulose raw materials.1 dwg, 1 tbl, 1 ex
Testing servo-mechanical machine for mechanical tests of material samples for tension, compression and bending // 2642557
FIELD: machine engineering.SUBSTANCE: machine comprises a two-zone loading device comprising a base and a fixed traverse rigidly connected to each other by two smooth columns, the movable traverse is moved by means of servo motor and two worm-screw transmissions forming the tensile and compression zones, a force sensor fixed to the movable traverse from the side of the compression zone, two grips for fixing test samples in the tension zone: the upper one fastened in fixed traverse by two hinged units in a position coaxial with the axis of force application to test sample, and the lower one coupled with movable traverse through a force sensor, two supports for compression testing are installed in the compression zone, a displacement sensor, and including a pumping unit including a low-pressure pump, a high-pressure pump, low-pressure and high-pressure safety valves, distributors for controlling closure and opening of grippers, gauges for recording pressure in the low and high pressure lines. During the tension test, the lower grip coupled with the movable traverse through the force sensor by the hinge assembly is set to a position coaxial with the axis of force application to the sample, and when the sample is destroyed, the hinge connecting the force sensor to the lower grip is opened for releasing the force sensor from dynamic action of the lower grip weight, which receives the body of the movable traverse through a damping gasket.EFFECT: providing alignment of force application to the sample with minimal accompanying bending and increasing the reliability of the force sensor.2 cl, 1 dwg

Definition of standard volume element for statistical data of cluster analysis // 2642556
FIELD: measuring equipment.SUBSTANCE: illustrative method involves obtaining bidimentional (2D) or three-dimensional (3D) digital images of a rock sample. The method also includes an iterative analysis of property measurements, collected for all digital images, using parts of a sample of different sizes, to determine the convergence of the distribution of properties as a function of the size of a part of the sample. The method also includes selecting the smallest part of the sample corresponding to the convergence of the property distribution as a standard element of the area or volume for the rock sample.EFFECT: increase the representativeness of the received data.22 cl, 10 dwg

Selective bass post-filter // 2642553
FIELD: physics.SUBSTANCE: post-filter (440; 550; 740; 1040; 1140) of interharmonic noise attenuation adapted to receive an input signal which includes a preliminary audio signal decoded in accordance with one of several decoding modes, where post-filter activity is traditionally associated with particular coding modes, and to supply output audio signal. It comprises a control section intended for selective activation of the post-filter in one of the following modes: i) a filtering mode, where it filters the preliminary audio signal to produce a filtered signal and supply it as an output audio signal; and ii) a transmission mode, where it provides a preliminary audio signal as an output audio signal. Moreover, the mentioned control section is configured to transit to the transmission mode in response to a value of the post-filter signal, whereby a traditional decoding mode with filtration is applied without filtration, and the post-filter signal is included in the input signal.EFFECT: possibility of deactivating the post-filter depending only on post-filtering information and, accordingly, regardless of factors such as current coding mode.10 cl, 11 dwg
Card update determination system // 2642547
FIELD: tool engineering.SUBSTANCE: map update determination system includes a motion plan generation module forming a route plan of a vehicle based on the target route and map information and specified in advance. The plan includes the target control value for the vehicle according to the position on the target route, a detection value acquisition module which in association with a position on the target route receives a control results detection value which is produced as a result of automatic driving control for the vehicle performed on the basis of the road environment surrounding the vehicle, situations during the movement of the vehicle, the position of the vehicle and the motion plan, an evaluation value calculation module calculating a motion plan estimation value for each area, and a map update determination module determining the need to update the map information for each area.EFFECT: expansion of functional capabilities.4 cl, 13 dwg
ethod for determining position of front part of glacier from spacecraft (sc) on near-circular orbit // 2642544
FIELD: measuring equipment.SUBSTANCE: method for determining the position of the front part of a glacier from a near-circular orbit includes determining the current orbital parameters, surveying the glacier and stationary indicative ground points from the SC at the moments taken in a given time interval, and determining the speed of the front part of the glacier from the images obtained. In addition, the SC orbit is adjusted, changing its height in the selected limits to a value based on the value of the latitude argument us of the orbit subsolar point at the beginning of the glacier's ablation season. Since the beginning of the glacier ablation season, the glacier and stationary indicative points around the glacier are surveyed at the moments, taken in the specified time interval, selected from the determination condition of displacement of the glacier front part based on the obtained images. Then the survey of the glacier and stationary indicative points around the glacier is performed in regular intervals, counted off from the moment of the previous survey of the glacier and starting with the current time, forecast based on the obtained images and in which the front part of the glacier will move by the distance, equal to the angular resolution of the SC survey system, multiplied by the height of the orbit, and ending with the current time, forecast based on the obtained images, until the front part of the glacier reaches the specified ground point, reduced by the specified time for preparatory operations before the front part of the glacier reaches it. The obtained images determine the distance from the indicative ground points to the front part of the glacier, based on which the speed, acceleration and the acceleration derivative of the front part of the glacier are determined.EFFECT: formation of a near-circular orbit of the spacecraft to determine the parameters of the glacier's displacement, starting from the beginning of the glacier's ablation season.1 cl
Device for experimental determination of dynamic addition loading in frame-rod structural systems // 2642542
FIELD: construction.SUBSTANCE: device comprises a frame consisting of columns and crossbars. The device additionally comprises a movable hinge-rod mechanism consisting of three vertical support rods, two of which are pivotally connected to each other and to the rod supports, a threaded stud connected horizontally to the third support rod, and a compressed spring disposed around the stud.EFFECT: convenience, mobility in laboratory tests and reduced labour intensity.2 cl, 3 dwg

Device for measuring physical parameters of material // 2642541
FIELD: measuring equipment.SUBSTANCE: device for measuring physical parameters of the material comprises a primary transducer made in the form of a length of a long transmission line with a signal and screen conductors, a space between them is intended for filling with controlled material, an amplitude detector, a generator of sounding signal made on the basis of a harmonic signal shaper tuned by frequency, measuring and control device, and first and second additional sections of transmission line with signal and screen conductors. The input of first section is connected to the input of primary converter, and the output of this section is connected to the input of amplitude detector. The input of the second section is connected to the output of the generator, and the output of this section is connected to the input of the primary converter. The input of the first and the output of the second additional sections are introduced inside the primary converter. The connection of signal conductors of the first and second sections to the signal conductor of the primary converter is inside the primary transducer directly in the area filled with controlled material. The first and second additional sections in the area of connection with the primary converter are in the form of electric inputs providing sealing of the primary transducer and transmission of the probing signal to the area occupied by the controlled material.EFFECT: increased measurement accuracy, expanded range of working pressures, increased sensitivity in materials measurement with low dielectric permeability.9 cl, 7 dwg

ethod to determine hydrogen concentration in palladium nanoparticles // 2642539
FIELD: measuring equipment.SUBSTANCE: X-ray absorption spectrum is measured by k-edge of palladium in the range 24320±10-24440±20 eV, the value of absorption coefficient is determined at the points of the first two maximums and the concentration of hydrogen C is calculated by the formula , where μA is the value of the absorption coefficient at the point of the first edge maximum, whereμB is absorbance at the point of the second edge peak, k1=0.903±0.001, k2=0.0320±0.0003.EFFECT: simplified processing of x-ray absorption spectra, as well as reduced measurement time.2 cl, 6 dwg

ethod of measurement of phase shifts between two harmonic signals of similar frequency // 2642529
FIELD: measuring equipment.SUBSTANCE: method for measuring phase shifts between two harmonic signals of the same frequency, providing high accuracy of measurement by using the harmonic voltage symmetry property. It can be used in the development of phase shift meters of various devices of high-frequency and ultra-high-frequency ranges. The essence of the method consists in the fact that the team channel sets the fetch time immediately before going through the voltage zero measured and memorized the voltage corresponding to the sample. Next is determined by the time the second sample, following immediately after transition through zero voltage the voltage equal to the opposite sign to the voltage of the first sample. The time of transition of the voltage of the reference channel through zero is defined as the arithmetic average of the time of appearance of the first and second samples. Similarly, in the measuring channel is set to the first sample immediately before going through the voltage zero measured and memorized the voltage corresponding to the sample. Next is determined by the time the second sample, following immediately after transition through zero voltage the voltage equal to the opposite sign to the voltage of the first sample. The time of transition of the voltage of the measuring channel through zero is defined as the arithmetic average of the time of appearance of the first and second samples. The sought phase shift between two harmonic signals of the same frequency is defined as the difference between the time of zero crossing of the voltage of the measuring and reference channels multiplied by the circular frequency of the signals under study.EFFECT: increase the accuracy of determining phase shifts between two harmonic signals of the same frequency.3 dwg
Spectrometric method for determination of cloud propagation path of toxic gaseous substances in atmosphere // 2642528
FIELD: measuring equipment.SUBSTANCE: continuous circular scanning of the atmosphere near surface layer above a controlled object area along the inclined paths is carried out by not less than two fourier-spectroradiometers. By using the results of the spectroradiometers operation, the laws of angular movement of indicated cloud are established experimentally relative to each instrumentation and for each direction and moment of time when one of devices has reacted. The direction of view axis is predicted for the rest instrumentation, in which they are supposed to indicate the cloud at the same time. The coordinates of intersection points of projections of axes of instrumentation view fields projected onto a topographic map are determined. The equations describing the change over time of the cloud coordinates are found, which make it possible to predict the direction and dynamics of its propagation. The sequence of coordinates found in time is approximated by a line which is a desired propagation path of the indicated cloud of toxic gaseous substance.EFFECT: possibility for determining the path and predicting the propagation direction of clouds of toxic gaseous substances is provided.1 cl

ethod and device for recognizing airplane destruction // 2642526
FIELD: security facilities.SUBSTANCE: invention relates to systems for detecting objects by reflecting radio waves from the surface of said objects and can be used in radio location to recognize the destruction of an aircraft. Technical result is achieved by the fact that in the method for recognizing the destruction of an aircraft, which consists in emitting an electromagnetic energy in the direction of an airplane, receiving signals reflected from the aircraft, obtaining a spectrum of the reflected signal, carrying out a narrow-band filtering of the Doppler frequency components, additionally determining the presence of the Doppler frequency at a frequency caused by movement with a speed close to the velocity of the shock front, ensuring its reproduction, indicating and signaling on the presence of this signal. Device implementing the method comprises a series-connected antenna and a radar, a filter tuned to the Doppler frequency caused by movement at a speed close to the velocity of the shock front, a speaker, a detector, a threshold device and an indication circuit, the filter input being connected to the output of the radar, the output of the filter is connected to the inputs of the speaker and detector, whose output through the threshold device is connected to the indication circuit.EFFECT: achieved technical result – provision of the possibility of recognizing the destruction of an aircraft.2 cl, 1 dwg

High-accuracy method with use of double label for moving targets position fixing in mine // 2642522
FIELD: measuring equipment.SUBSTANCE: high-accuracy position fixing method with the use of double label includes a method for locating a position fixing of an object of the first type in a mine and a method for position fixing of a moving object of the second type in a mine; the method includes the steps of: setting two position labels horizontally or vertically on a moving object and performing them to communicate with two base positioning stations installed along the roof timber and obtaining the location of the moving object in real time by constructing an optimisation function between the distance determined according to the received signal strength indicator and the estimated distance between the label and the base station of position fixing and searching for the minimum value; solving the optimisation function by an iterative process, including the step of determining the initial iteration value and the iteration step in the left/right direction. The method is applicable for determining the location of objects with a strip profile parallel to the digging face (for example, a mine trolley or a cutter) or objects with a strip profile perpendicular to the digging face (for example, a working).EFFECT: improved accuracy of position fixing of a moving object in the mine.2 cl, 2 dwg

Device for diagnostics of interturn short-circuits in power transformer windings // 2642521
FIELD: electricity.SUBSTANCE: device is designed for diagnostics of 6-10/0.4 kV power transformers of any power on availability of interturn short-circuits in transformer windings at early development stage of at area of power transformer operation. The device for diagnostics of interturn short-circuits in power transformer windings has a measuring unit connected to the power transformer. The device is connected to the power transformer from the low voltage side through a three-pole circuit breaker and comprises a known non-damaged transformer series-connected through the three-pole circuit breaker with matching transformer, and also diodes, adjusting rheostats and filters connected in series with each other, through which power conductors and matching transformers are connected to a ground conductor. The measuring unit is used to measure potential difference between two points which are located between the adjusting rheostats and the filters of the same phases of the power and known non-damaged transformers. There is a voltage measuring transformer used as a known non-damaged transformer, and galvanometers are used as devices for measuring potential difference between two points. The low cost of the device makes it possible to use it as a standard completing device of a transformer substation, ie without dismantling thereof upon measurements completion that simplifies its use and the measurement process.EFFECT: provided possibility to detect interturn shor-circuit of power transformer at early development stage.3 cl, 1 dwg

ethod for remotely determining vibration amplitude // 2642517
FIELD: measuring equipment.SUBSTANCE: by means of a coherent radar unit or a coherent sonar, operating in the ultrasonic range, a vibrating surface is irradiated. The reflected signal is received, and the vibration frequency is measured. The amplitudes of the first four harmonics are measured, and the values obtained are evaluated. Based on the results of this evaluation, a pair of harmonics - either odd or even - is selected, and the ratio of the amplitudes of these harmonics is determined. From this amplitude ratio, the vibration amplitude value is calculated.EFFECT: increasing the accuracy of determining the vibration amplitude and expanding the method application scope due to eliminating the effect on the results of the measurements of the phase shift factor of the signal.1 dwg
ethod of non-satellite navigation // 2642507
FIELD: radio engineering, communication.SUBSTANCE: radio-frequency tags are installed on road signs, traffic lights, poles, trees, buildings, and structures, as well as other artificial objects and non-living objects suitable for this purpose, while their information data characterizing the uniqueness of each label location are contrasted with analogous data printed on an electronic map and/or stored in the database. Tag coordinates are assigned relative to the boundaries of a city or other locality object, an area, a region, an administrative unit or a state by building a grid, where the southernmost point of the boundary is a zero-numerical value of the index (number) in the position indicated by a single letter of the alphabet, the western point - in the position indicated by a different letter of the alphabet. The coordinates of the remaining tags following the tag(s) with a zero index for either of the two letter positions are obtained by adding, for example, units to the indexes of the tag positions. Tag coordinates consider prohibiting and prescribing traffic signs located at intersections, branches and forks of the road directly, where they are installed, as well as on adjacent intersections, branches and forks. Paving the object route is carried out by connecting the next tag (s) from the initial point, at which the user is located, nearest to the desired point of the tag(s) across all tags lying between them, and then selecting the minimum distance.EFFECT: providing navigation services in a zone containing RF tags at arbitrary trajectories of the user movement.5 cl, 3 dwg

ethod for recognition of faulty phases of electric transmission lines in open-phase earth short-circuit // 2642506
FIELD: electricity.SUBSTANCE: method of recognition of faulty phases of electric transmission lines in open-phase earth short-circuit includes steps of monitoring currents and voltages in the beginning of the line, converting them into integrated measurements, displaying each measurement in an integrated plane of the corresponding recognition unit, training recognition units with the help of simulation models of the electric transmission line, reproducing different types of short circuits. To achieve a technical result, phase and phase-to-phase measurements are formed. Each phase measurement is applied to a number of recognition units, which is equal to the number of different types of short circuits, one unit per type. Each phase-to-phase measurement is applied to a number of recognition units, which is equal to the number of different types of two-phase short-circuits. Each unit is trained to recognize one of the types of short-circuits. The units, related to the same type of short circuit, are combined according to the AND scheme into a common unit that recognizes the short circuit of this type. Out of all the units two groups - blocking and permitting - are composed for each phase of the electric transmission line. The blocking group collects common units of those types of short circuits in which this phase is not faulty, and in the permitting group - common units of other types of short circuits in which this phase is faulty. Further, a short circuit is acknowledged in this phase, provided that none of the common units of the blocking group has responded and at least one of the common units of the permitting group has responded. Also, a transmitting model of the unfaulty electric transmission line is used. It converts the monitored currents and voltages in the beginning of the line to the voltages in the end of the line and define the measurements as relations of similar voltages at the output and input of the transmitting model.EFFECT: simplification and enhancement of the recognition ability of the method of phase selection.2 cl, 16 dwg

ethod of characterizng part manufactured from composite material // 2642503
FIELD: physics.SUBSTANCE: characteristics of the longitudinal ultrasonic wave passing along the path inside the part are determined, while measuring the transit time of the longitudinal ultrasonic wave transmitted by the part and measuring the transit time of the transmitted wave by observing the wave beginning.EFFECT: providing the ability to quickly and reliably determine the parameters of parts made of the composite material.5 cl, 10 dwg

ethod of control and repair of wire insulation // 2642499
FIELD: electricity.SUBSTANCE: method of control and repair of winding wire insulation involves detecting a defect in the insulation of a moving wire by control devices and measuring its extent. Further, when passing a defective area under the enamel application unit, an electrostatically charged enamelling lacquer is applied to the detected defect. For high-strength heat-resistant enamelled winding wires PETV, the enamel insulation of which is made of PE-939 lacquer, a composition for electrostatic coating of film binder on the defective area, for which the liquid PE-939 lacquer of B grade is added with dioxane and the surface tension coefficient is controlled. Then, when the specified coefficient reaches the values (4÷5)⋅106 N/cm, the dilution of the lacquer with dioxane is terminated and 1% ammonia is added to the resulting composition, while measuring the specific resistance of the mixture obtained. Addition of ammonia is stopped when the composition reaches the value of the volume resistivity lying in the range of (10-5÷10-6) Om-1 m-1. Thereafter, said mixture is electrostatically charged by passing it through a nozzle to which a negative high voltage potential pulse is applied in the range of (-2÷-4) kV, the duration of which is equal to the time of passing the defective area under the nozzle. After the application of the liquid enamel film to the defective area excess enamel is removed, then the defective area with the liquid enamel applied to it is subjected to baking and drying.EFFECT: increasing the accuracy of detection of defective areas in the insulation of the wire and their extent with further repairs, improving the efficiency of repair.2 dwg

ethod for marine electrical exploration // 2642492
FIELD: measuring equipment.SUBSTANCE: on the drifting ice floe there is an MTZ data recording station. Magneto telluric field measurements are made at each particular frequency, referenced to the corresponding point on the profile, the coordinates of which change due to the ice floe drift. The indicated coordinates are fixed for each measurement, the MTZ, AMTZ data and responses to sharp changes in the magneto telluric field are recorded, the obtained data set is used to restore the distribution of the geological environment electrical conductivity and make a prediction about the presence or absence of the desired objects associated with minerals in the study area.EFFECT: creation of a method for marine geophysical exploration by magneto telluric field measurement during operations in the polar regions on drifting ice surface, obtaining reliable geophysical information on the structure beneath the seabed, ensuring depth studies to 10,000 m.3 cl, 8 dwg

Dilatometer // 2642489
FIELD: physics.SUBSTANCE: invention relates to the field of material research by means of thermophysical measurements, namely to the devices for measuring the temperature coefficient of linear expansion (TCLE). The dilatometer comprises a heating chamber with a detachable tube, in which the test sample and pushers are horizontally mounted tightly in contact with the opposite ends of the sample, measuring mirrors fixed at the ends of the pushers and located outside the heating chamber, a laser, and an optical system for measuring the elongation of the sample. To create a constant in magnitude and symmetrical pushing of the pushers to the test sample, a clamping system is used. In the optical system, a four-way interferometer including a polarized beam splitter dividing the laser beam into a working and a reference beam, two quarter-wave plates, a polarization plate, three rotary mirrors, an optical prism, four bypass mirrors for the working and reference beams, two return mirrors, and a photodetector. Electrical signals from the photodetector and the thermocouple, which registers the heating temperature of the sample, are transmitted to the PC, where they are synchronously recorded.EFFECT: increasing the accuracy of measuring the elongation of the sample.5 cl, 4 dwg

Device for determining complex of geometric parameters of cross section of objects of quasi-cylindrical forms // 2642481
FIELD: measuring equipment.SUBSTANCE: device contains a laser triangulation sensor distances, mounted near the surface of the object so that the laser beam was in a plane and crossed the path section checkpoints, microprocessor measuring-computing block device for the rotation of the object around an axis of rotation passing through the central point within the cross-section perpendicular to the plane of the section, starting from the initial angular position every similar angular intervals so that within a single turnover number, distance sensor signal converter and a personal computer. The distance sensor is set at a specified adjustable distance from the axis of rotation of the object being monitored. Measurements of distances to control points are carried out through every identical angular interval. This provides the ability to determine the set of distances from the central point to the control points, located along the entire contour of the section, represent coordinates of control points in a rectangular coordinate system and calculate the geometric parameters of the cross section of the body by a measuring and computing unit.EFFECT: simplification of the device by making measurements of distances to control points on the contour of the cross section using a single laser triangulation distance sensor.4 cl, 2 dwg

Automated control system of parameters of cable-bus networks of autonomous objects // 2642478
FIELD: measuring equipment.SUBSTANCE: system contains a general control unit, a network information exchange unit, an information exchange bus, a distributed network of local control and measurement switches. General control unit output-input is connected to the input-output of network exchange unit, whose output-input is connected through the information exchange line with inputs-outputs of local control and measurement switches different in that the system also includes n local control and measurement switches, informationally and by hardware combined into a single information network, each of which contains an information exchange unit, a control and calculating unit, a switches control unit, set point adjuster of parameters acceptable limits unit, a control, measurement and comparison unit, a control modes switch, a control and measure bus, an input-output points switch, providing the switching input-output points on control and measurement bus or autonomous object housing, an input-output connectors unit.EFFECT: expansion of functionality and implementation of prestart check procedure by changing the circuit of prototype switching.1 dwg

Zero radiometer // 2642475
FIELD: measuring equipment.SUBSTANCE: zero radiometer comprises an antenna, a matched load connected to the first input of a modulator, a radiometric receiver, series-connected pulse amplifier, a high-pass filter, a synchronous low-pass filter, a comparator, a control unit. The first and second outputs of the control unit are connected to the control inputs of the modulator and the synchronous low-pass filter, respectively, and the third output is the output bus of the radiometer. The common bus of the radiometer is connected to the second input of the comparator. The matched load and the modulator are mounted on the thermostatically controlled plate. A high-frequency key, the first switch, connected to the output of the radiometric receiver with its input, are additionally introduced. Its first and second outputs are connected to the same inputs of the second switch, respectively. The first output is connected directly, and the second - through the voltage divider. The output of the second switch is connected to the input of the pulse amplifier and control inputs of the first, second switches and the high-frequency key are grouped together and connected to the fourth output of the control unit. The antenna is connected to the second input of the modulator, whose output is connected to the input of the radiometric receiver through the high-frequency key.EFFECT: simplifying the radiometer circuit and increasing the accuracy of measurements.4 dwg

Installation for object testing for thermal impacts // 2642461
FIELD: testing equipment.SUBSTANCE: installation for object testing for thermal impacts contains a working chamber on a foundation with a device for test object fastening and source of heat in the form of a fuel collector installed under the test object placed inside the chamber, an igniting device and an exhaust opening in the chamber roof with a possibility of closure. The working chamber is a prefabricated metal structure. The walls of the chamber are formed by pillars mounted on the foundation, fastened with transverse beams with metal modules hinged on them with a possibility of removal. The chamber roof is removable, the roof and the modules are equipped with an external metal profile. The modules are raised above the foundation with formation of an air gap covered on the outside by supporting modular elements spaced apart from the chamber walls. Each fuel collector tube is made with through screw openings for fuel atomization, placed at a distance from each other, ensuring overlapping of the spraying torches for fuel leaking from the neighbouring openings, at that, the device for test object fastening is made as a support of welded metal profile.EFFECT: creation of a transformable mobile installation, allowing its disassembly and assembly for a wide range of test objects while ensuring creation of a homogeneous temperature field inside the chamber, increased resource and economy of installation.2 dwg

Self-cleaning optical sensor // 2642455
FIELD: physics.SUBSTANCE: optical sensor comprises: a sensor head including the first and the second optical window, at least, one light source emitting light through the first optical window into the fluid flow and, at least, one detector detecting fluorescent emissions through the second optical window from the fluid flow; a flow chamber including a housing defining a cavity, into which a sensor head is inserted, an inlet port conveying the fluid flow beyond the cavity within the cavity, and an outlet port conveying the fluid flow from within the cavity back outside the cavity. The inlet port defines the first nozzle guiding a portion of the fluid flow to the first optical window and the second nozzle guiding a portion of the fluid flow to the second optical window. The method for determining a characteristic of fluid, in which fluid is guided through the first nozzle to the first optical window of the sensor head and through the second nozzle to the second optical window of the sensor head.EFFECT: improving the accuracy of fluid characterization.30 cl, 10 dwg
Urea derivatives and their application as inhibitors of fatty acids connecting protein // 2642454
FIELD: pharmacology.SUBSTANCE: invention relates to a compound of formula , where R1 and R2 together with the carbon atom to which they are attached form C3-C10-cycloalkyl; R3 is H or C1-C12-alkyl; R4 is H; W is a bond; A is phenyl substituted by R8, R9 and R10; B is phenyl substituted by R11, R12 and R13; R8 R9 R10 are independently selected from H, halogen-C1-C12-alkyl, halogen; R11, R12 and R13 are independently selected from H, halogen; or pharmaceutically acceptable salts thereof. A pharmaceutical composition, application of a compound of formula (I) and a method for treatment and preventingon of type 2 diabetes, atherosclerosis, cancer, chronic renal failure and non-alcoholic steatohepatitis are also provided.EFFECT: formula compound inhibits the activity of FABP4 and FABP5 proteins and can be used to treat and prevent the aforementioned diseases.17 cl, 17 ex

Radar scanning method // 2642453
FIELD: radio engineering, communication.SUBSTANCE: in radar scanning method consisting in electronic and mechanical scanning by the phased array antenna beam with respect to the elevation angle and the azimuth in mechanical direction, change the scanning electron plane of the phased array antenna (FAA) by rotating or rocking of the FAA about the axis perpendicular to its plane, with the possibility to provide electronic scanning by FAA beam in the azimuth-angle sector for radar stations with one-dimensional electronic scanning when the rotation or rocking of the antenna in the azimuth plane is stopped.EFFECT: providing electronic scanning by the phased array antenna beam in the azimuth-angle sector for radar stations with one-dimensional electronic scanning when the rotation of the antenna is stopped in the azimuth plane.1 dwg

Device for determining turn-to-turn short circuits in power transformer windings with switching without excitation // 2642445
FIELD: electricity.SUBSTANCE: device contains current transformers, included into the phase break of the power circuit of the three-phase network, connected to the electric plant. The transformers are interconnected in delta circuit on the sides of the electric plant, forming a differential protection circuit, current circuits and a differential relay with the first and second compensating and differential windings, located on the same core leg and interconnected. The polar terminals of current transformers of different phases and sides of the electric plant are connected to one differential relay. To determine the turn-to-turn short circuit in the windings of the auto-type transformer winding ends are provided. The winding ends have respective digital marking in the number of the changer taps without excitation of the power transformer and allow increasing or decreasing the transformation ratio of the auto-type transformer depending on the changer tap without excitation of the power transformer. The terminals are fitted with pads for changing the turns of the adjustable winding in the number of the transformer phases. Each pad is a metal plate of at least 2.5 mm in cross-section, attached with its one end to the terminal of the dielectric plate, and with the other end to one of the terminals of the adjustable winding of the auto-type transformer, located on the same dielectric plate. The pad is fixed on the terminals of the auto-type transformer.EFFECT: increase in the sensitivity to turn-to-turn short circuits and elimination of the influence of higher harmonics.2 cl, 1 dwg
ethod of distance measurement // 2642430
FIELD: radio engineering, communication.SUBSTANCE: method consists of using a signal with quarter-phase multiplex, the in-phase and quarter-phase components of which are phase manipulated by binary pseudorandom sequences with different repetition periods.EFFECT: increasing the range of single-valued distance measurement by selecting aliquant repetition periods of pseudo-random sequences, which is defined as the smallest common multiple of product of a character number from one sequence by the clock frequency of the other.1 cl

Interference reject filter // 2642418
FIELD: electricity.SUBSTANCE: interference reject filter contains the first and the second delay blocks, a weight unit, the first and the second complex multipliers, a weight block, a complex adder, a complex conjugation unit, a switching unit, an accuracy unit, a switching unit, a two-channel switch, and a synchronizer interconnected in a certain way and performing coherent processing of the original samples. At the same time, optimal coordinated processing leads to an increase in the accuracy of interference compensation and the allocation of signals of the moving targets during the tuning of the carrier frequency against a background of passive interference with an apriori unknown Doppler velocity.EFFECT: increasing the efficiency of signal extraction of the moving targets.11 dwg

Device for monitoring electrical installation // 2642397
FIELD: automation.SUBSTANCE: invention relates to automation and computer engineering, in particular to devices for monitoring electrical installation. Device comprises a first control microprocessor, first and second clock generators, first and second display units, a mode switch, a "start" pulse former, a "continue operation" pulse former, a"write" pulse former, program switch, stop indicator, buzzer, probe, “program” indicator, first and second load resistors, a second analysis microprocessor, a third switching microprocessor, a selection indicator, a selection unit, and a communication channel. Device consists of two parts and therefore enables to inspect the stranded bundle already laid in a closed channel, and in order to inspect a bundle with a large number of wires, remote units are incremented in blocks, while the main unit is structurally made in the form of a probe. In program mode, a bundle with special installation can also be inspected. Display units display complete picture of the status of the monitoring object (closure, breakage, special connections).EFFECT: technical result is the simplification of the device, enabling inspection of cables with a large number of wires and with special installation.2 cl, 4 dwg