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Recording medium, playback device, encoding device, integrated circuit and playback output device Invention relates to stereoscopic video playback means. The method comprises forming a main-view video stream of stereoscopic video images, forming a sub-view video stream of stereoscopic video images, forming a data stream of monoscopic graphics images, generating playlist information; recording the main-view video stream, sub-view video stream, graphics stream and playlist information on a recording medium. In the method, the sub-view video stream includes a plurality of groups of images, each including metadata which include a plurality of shift information fragments and a plurality of shift identifiers, where the plurality of shift information fragments is in one-to-one correspondence with the plurality of shift identifiers. |
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Method and apparatus for allocating device identifiers (stid) in wireless access system Group of inventions relates to wireless access systems and can be used to allocate a device identifier in a system which supports machine-to-machine (M2M) communication. The method comprises steps of receiving, by a M2M device from a base station, a M2M group identifier (MGID) indicating a M2M group to which the M2M device belongs; applying, by the M2M device, the MGID to a cyclic redundancy check (CRC) mask; and decoding, by the M2M device, a message in the form of an advanced map information (A-MAP IE) based on the CRC mask. |
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Vent, method of its assembly and operation Invention relates to metallurgy. Vent comprises several extended housings with rods. Ends of rods are rigidly secured at circular platform while working end is formed at opposite side to comply with casting outfit surface configuration. Vent centre has exposed conical channel converging to vent end. Some rods have the head on free end. Vent cases are integrated into a unit and secured fitting the free ends of rods one in the other to make an open channel diverging towards circular platforms. |
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Invention relates to an antivirus system. A storage device comprises an operating partition storing a file to be scanned, a read-only user interface program, a hidden partition storing a virus code. A processor is operably connected to a display device, wherein the read-only user interface program, when executed by the processor, enables said processor to display the user interface on said display device, receive an access request through said user interface and generate, in response to the access request, a password confirmation request to confirm a program/code update password used to control update of the antivirus program or virus code. An antivirus apparatus performs virus scanning of the file to be scanned in said operating partition based on said virus code in said hidden partition and includes an antivirus processor. |
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Conference call management method and related device and system Invention relates to communication technologies, and namely to a conference call management method, device and system. The result is achieved due to the conference call management method that includes: receiving a request of a right to speak from the first place. The said request contains the first node and the first place identifiers. The node, corresponding to the first node identifier, contains multiple places and belongs to the first conference. The first place identifier is the one, requesting the right to speak at the node, corresponding to the first node identifier. If the place is granted to the node requesting the right, then a video stream is played to the terminal of at least one node, except for the node, corresponding to the first node identifier in the first conference. |
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Angle digital converter contains an excitation voltage generator, which output is connected to an excitation winding of a two-phase angle sensor of a RVDT type; a RVDT receiver, a voltage-to-frequency converter, a bidirectional counter, the first rectifier, the second rectifier, a summation unit, an amplifier, an ADC and a controller, the first and the second inputs of which are connected to the bidirectional counter output and the ADC output, respectively, and the controller output is connected to an output code bus. |
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Device for removal of hair containing applicator with screen Invention includes a handle and a cartridge installed on the handle. The cartridge contains a blade. The dosaging unit is positioned on the handle. The dosaging unit has a reservoir, a dosaging device having a liquid communication to the reservoir and an applicator (100) having a liquid communication to the dosaging device. The applicator includes a central aperture and a screen with a resilient front leaf. The leaf has a neutral and a front position. The resilient front leaf is parallel to the screen rear wall while in the neutral position and perpendicular to the rear wall while in the front position. |
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Movable attachment for destoning machine-swath collector Movable attachment includes combing-out plough share, movable body, resilient element and frame. The body is capable to change stone lifting height and execute elastic vertical vibrations on account of resilient element. |
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Non-volatile memory with split write and read bit lines Invention relates to computer engineering. A single-bit non-volatile memory (NVM) cell comprises a first NVM one-time-write element directly connected to a write bit line; a first write access transistor connecting the first NVM one-time-write element to a ground, wherein the gate of the first write access transistor is connected to a write word line; and a first read access transistor directly connected to the first NVM one-time-write element and directly connected to a read bit line, wherein the gate of the first read access transistor is connected to a read word line. |
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Wireless communication method includes the following steps: building a field of a signal with a very high capacity (VHT-SIG), scrambling one or more bits of the VHT-SIG field, transmission of the VHT-SIG field with one or multiple scrambled bits along a wireless channel. |
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Auxiliary method and system of wireless signal detection by mobile devices Invention relates to communication technologies, in particular, to mobile devices. The method and system of wireless signal detection by mobile devices are proposed. The method of gathering data about the wireless signal sources by user terminals, connected to a short range low-power wireless network is characterised by sending broadcast messages via the user terminals, requesting information about the wireless signal sources from the low-power wireless network. Then the terminal receives the said information, checks it for desirable signal sources, available sources and their signal parameters. After that, the terminal clarifies a degree of the signal parameter uncertainty in order to connect to the desired signal source. The obtained data is stored and continuously updated in a local cache of the terminal and broadcasted via the public low-power wireless network. |
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Apparatus for probing building structures Invention relates to subsurface radar and particularly to devices for determining the location and shape of inhomogeneities and inclusions in building structures. The apparatus for probing building structures comprises a portable computer, a building structure surface, an electronic unit, an antenna unit, a high-frequency generator, a controller of processing and inputting of data into the computer, a high-frequency signal receiver, a transmitting antenna, a subsurface object, a flip-flop, a correlator, two amplifiers, a delay line, a subtractor unit, an integrator, a divider unit, a comparator unit, a reference voltage generating unit, an analogue-to-digital converter, an interface, a switch, a liquid crystal display, an audio indicator, an automatic delay control unit, a multiplier, a low-pass filter, a subsurface object depth indicator and a differentiating unit. |
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Collision detection and backoff window adaptation for multiuser mimo transmission Invention relates to a wireless local area network (WLAN) where an access point (AP) has data to send to multiple stations (STA). The technical result of the invention is the capacity to detect collisions during multiuser multiple-input multiple-output (MU-MIMO) transmission and adapting a contention window (CW) size for a backoff counter applied to a subsequent MU-MIMO transmission. |
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Sending information about channel status in wireless network Invention relates to a transmission method of channel status information in a wireless network. The wireless communication method comprises steps of: periodic annunciation of the channels status information (CSI) for the first resource set, where transmission within the first cell is limited by the transmission limitation in the second cell, periodic annunciation of CSI for the second resource set and receiving configuration data, indicating when the CSI is to be announced to the first and the second resource set. |
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Harmonic frequency multiplier comprises an input transformer with primary and secondary windings, a source of sinusoidal signal, a load resistor, the first and second transistors, the power supply source, the first and second output broadband transformers, the first and second resistors, at that primary windings of the first and second output broadband transformers are coupled in series in phase, the potential output of the power supply source is coupled to the point of their connection, secondary windings of the first and second output broadband transformers are coupled in series in antiphase. |
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Invention relates to documentation expertise and can be used in the forensic, criminalistics and judicial practice in technical expertise of determining the true execution time of details of documents made with ballpoint pen ink, ink for capillary, gel, fountain, "roller" type pens, ink for watercolour pens and ink jet type printers, colouring matters of printers of a matrix type, typewriters, and the impressions of seals (stamps) and other materials of writing. The method of determining the age of strokes of the colouring matters of the details of the documents is that the colouring matter is selected for a control stroke and the control stroke is created, the samples are obtained of the test stroke and the control stroke, which execution date is known. Then the samples are extracted in a solvent and the total colour difference is determined and the difference in lightness for the test and the control strokes with respect to the solvent, receiving the samples of the control and test strokes is repeated at least once in at least one time interval, as well as their extraction in the solvent and determining the total colour difference and the difference in lightness of the test and control strokes, and relative remoteness of the application of the test stroke is determined. At that obtaining the samples of the test and control strokes is carried out by making impressions of the test and control strokes on segments of an absorbent material wetted with a solvent. And as the absorbent material used is cellulose acetate, and as the solvent - methanol. In addition, selection of the colouring matter for the control stroke is preferably carried out by identifying the type of the writing material of the document, measuring the spectral characteristic of the colouring matter of the details of the document, and selection of the colouring matter of the same material type of writing as the colouring matter of the details of the document, and with the spectral characteristics most similar to the spectral characteristic of the colouring matter of the details of the document. |
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Invention relates to the means of managing calls between mobile terminals. The method includes the following steps: upon receiving a notification of a priority call request from a call management node (P-CSCF), a priority management node (PCRF) determines, whether the ARP channel priority is to be changed to the higher value than the one set in the channel for a call management signal, in order for the call management node to send the call request signal from a gateway (P-GW) to a mobile terminal (UE). If the change is required, then the ARP channel priority is changed to a higher value. Also, if necessary, the mobile terminal is called using the priority set for the call management signal. |
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Circuit and topology for high reliability power electronics system Invention relates to power electronics. Disclosed is a power electronics system comprising a set of identical semiconductor switching devices connected in series to provide high reliability switching, wherein each semiconductor switching device is configured to be activated through a corresponding switch driver unit, comprising a built-in logic unit, and a set of identical controller units, wherein each logic unit is configured to provide the corresponding control signal of the semiconductor switching device upon receiving output signals from the controller units, wherein each output signal corresponds to one switch driver unit and the corresponding logic unit and is connected to the corresponding built-in logic unit and the switch driver unit, such that the corresponding semiconductor switching device is controlled as a result of logic processing of signals of said set of controller units independent of faults in any one or more controller units, provided that at least a minimum number of controller units remains operational. |
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System includes a flow meter having a differential pressure sensor connected parallel to a Venturi tube to a pipeline, and a fraction meter with a double-peak energy source, each of which is functionally connected to a digital processor. In addition, the system includes a pump connected to the pipeline at the flow meter inlet, which injects at least one pulse portion of known amount of liquid, which is sufficient as to volume so that liquid phase can be increased for some time by the amount determined by the flow meter. After the liquid pulse portion is injected into the multiphase flow, the digital processor calculates changes in percentage composition of liquid and gaseous phases, which should have occurred as a result of injection of the pulse portion, and compares the calculated changes to actual changes so that the flow meter can be calibrated. Then, the measured increase in the liquid flow is deducted from full measured liquid flow to determine actual percentage of the liquid flow. |
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Method of analysing and identifying cultural art paintings Invention relates to identification of cultural objects. The method of analysing cultural art paintings to check authenticity and integrity thereof comprises converting a colour image of the painting into an image light signal S, splitting the light signal into three basic colours in an RGB system with referencing to a coordinate grid in the form of pixels, when storing the light signal in an author data bank, performing matrix adaptive addition of components RS, GS and BS; performing analogue-to-digital conversion of each pixel of the colour-separated light signal RS GS BS in logic elements of a two-dimensional digital image and recording in a colour-separated matrix, determining spectral-brightness characteristics kRS, kGS, kBS of each pixel of the colour-separated light signal, analogue-to-digital conversion thereof into a series of digital data with referencing to the colour-separated matrix and storing in an author data bank, analysing authenticity and integrity of the painting by comparing the digital data of the painting being tested with stored digital data of the original painting and performing matrix adaptive addition of components when reproducing the image. |
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Quality control method, quality control gage and set of gages to control thread component quality Distinctive feature of the proposed group of inventions is that the control value of the torque being less than the specified torque value, is specified in advance, and a ring-shaped thread gage (11) able of being screwed together with a spark plug (3) is used to control the position of the spark plug. The gage (11) is fitted by reference lines (14a, 14b) which show the upper and the lower end positions of ground electrode (33) orientation tolerance when the plug (3) and the gage (11) are screwed together. When the plug (3) and the gage (11) are screwed together and tightened by the control torque value, suitability of phase position in the rotation direction is evaluated and controlled by assessing, if the ground electrode (33) of the plug (3) falls within the range of reference lines (14a, 14b) showing the upper and the lower tolerance end positions. |
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Method involves force action on the surface of a test object, recording of a set of electrical signals of input information with the information sensors installed on the test object; signals of the information sensors are determined with changes in force action on the surface of the test object. A use is made of information sensors installed on the test object and receiving changes in parameters of the test object, electronic filters to increase signal-to-noise ratio, which are connected to the outputs of the sensors and connected to the inputs of an electronic analogue circuit implementing a neural network model of reliable operation of the test object; with that, to another group of inputs of the electronic analogue circuit there connected is a unit for supply of a signal for retraining of a model with wears, and to its output there in-series connected is approximation unit of time dependences of sets of electrical signals, a shaping unit of time series of forecasts of reliable operation of the test object, an extrapolation unit of the value of the set of electrical signals at the output of the electronic analogue circuit till a limit value and determination of residual life, to the input of which an extrapolation model setting unit is connected. |
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Method of determining total content of phenoles in waters Method includes taking of a sample, processing the sample with an excess of diazotised sulfanilic acid in an alkaline medium, measurement of the optic density of the coloured solution on an analytic wavelength and calculation of the total content of phenols in terms of elementary phenol, with a reaction between the phenols and diazotised sulfanilic acid being carried out at pH value =7.2÷8.5, the reaction mixture is held at a temperature T=20÷25°C, for not less than 10 min, the optic density is measured in the field of the wavelength λ=340÷370 nm. |
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Vector receiving device contains a sound transparent frame and a vector receiver connected by a suspension. The latter is a closed linear element with the mass distributed along its length and fixed to the sound transparent frame and to the vector receiver in two points each. The suspension points divide the linear element length into four equal parts. This closed linear element has a form of a metallic or a plastic chain, with the negative buoyancy. The total buoyancy of the suspension and vector receiver is less or equal to zero. |
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Contact lens comprises a lens optical area, a peripheral area surrounding the lens optical area, and stabilising areas located in the peripheral area of the lens. The stabilising areas are asymmetrical with respect to the horizontal axis. In a first version, orientation of the stabilising areas is 10.0 degrees from the vertical, and a large part of each stabilising area is above the horizontal axis. In a second version, the greatest lens thickness is located on the 0-180 degree meridian and the rate of change of the inclination of said areas differs in the direction from the highest point of the lens thickness. |
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Multifunctional sensory microelectromechanical system Multifunctional sensory microelectromechanical system (MEMS) is intended for use in gas analysers, in medicine as biosensors, in microelectronics and other high-tech fields for controlling technological processes. The multifunctional sensory MEMS comprises a group of resonators attached by first ends to a first holder connected to a substrate. The resonators are not all parallel to each other. Use of a resonator which, owing to its bending through a piezoceramic can change the initial resonance frequency of a resonator parallel to it, will increase measurement accuracy owing to different initial characteristics of measurement of the presence of the same number of adsorbed particles on a layer. |
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Method of electronic switch control Method of electronic switch control includes supply of overvoltage pulse, which ensures reswitching of the electronic switch to a decoupling diode installed between the electronic switch and ground bus in direction locking the overvoltage pulse. At that avalanche voltage of the decoupling diode is bigger than amplitude of the overvoltage pulse, at that limit pulse current in straight direction through the decoupling diode is simultaneously more than operating current of the electronic switch. |
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Invention relates to hydroacoustics and can be used for real-time monitoring of underwater noise of watercraft in natural conditions. The technical result is achieved by throwing overboard hydroacoustic measurement means on a conducting rope in stabilisation mode of the watercraft without movement thereof and measuring underwater noise parameters of the watercraft itself. The hydroacoustic measurement means have positive or negative buoyancy. |
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Accumulator residual capacitance determination method Residual capacitance determination for rechargeable lithium-ion cells is made by its impulsive loading by current, measuring voltage drop at its terminals and determining residual capacitance as per the preliminary plotted dependence of voltage drop on remaining capacitance. The method is featured by the fact that loading is made during 0.01-0.1 second by current that does not exceed maximum permitted current of continuous discharge per more than 5 times for this standard size of the accumulator and that is less than the permitted impulse current of load for this accumulator. Current of the accumulator operating load is controlled additionally and its impulsive loading by current is made at minimum value of the accumulator operating load current or in period of its idle operation. While implementing the method in conditions of permanent high operating load by current or in case of unavailability of idle operation periods within the whole cycle of its discharge the accumulator is disconnected from the operating load for the period of its impulsive loading by current and measuring voltage drop at its terminals. |
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Verification and calibration unit of gas meters, flow meters and volumeters Verification and calibration unit of gas meters, flow meters and volumeters relates to measurement equipment, namely to calibration units on critical nozzles, and is intended for verification and calibration of meters, flow meters and volumeters of different types. The unit includes reference flow meters - critical nozzles 1, each of which is provided with shutoff valve 2, pump 3, receiver 4 (forechamber), control and monitoring system 5 containing control unit 6 of shutoff valves 2, unit 7 for shaping of a set of critical nozzles as per the specified value of flow rate of verification medium. |
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Method of forming nanowires from colloidal natural material In a method of forming nanowires from a colloidal natural material, based on a self-organised formation of linearly ordered nanosized current-conducting structures with a strictly specified orientation for the connection of separate micro- and nanoelectronic elements and/or formation of nanocomponents of an electronic element base, formation of structures and/or elements is carried out in one process for not more than 3 minutes under an impact of an electric constant field only with an intensity not higher than 5×103 V/m, configuration of which directly specifies both the dimensions and forms and the orientation of the nanosized current-conducting carbon structures, which are stably preserved without the application of any protective layers on a substrate from any material, including the one, containing separate micro- and nanoelectronic elements for their connection and/or for the formation of nanocomponents of the electronic element base. |
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Method for determining content of anions in solutions and moisture-containing products Invention can be used in agriculture, medicine, biology, food and chemical industries. A method for determining content of anions in solutions and moisture-containing products is implemented in an electrochemical cell at passage of alternating current through it. Measurement is carried out at alternating current frequency of 0.1 Hz to 100 kHz. As a measurement parameter, occurrence of phase displacement between e.m.f. and electrical current is used at current passage through the electrochemical cell. Time required for determination is maximum 0.5 minutes. |
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Vibration meter including improved damped part of meter Vibration meter (5) includes one or more pipelines (103A, 103B) including vibrating section (471) and non-vibrating section (472), and actuator (104) connected to one pipeline of one or more pipelines (103A, 103B) and configured for excitation of vibrations of vibrating section (471) of the pipeline on one or more drive frequencies. Vibration meter (5) also includes one or more measuring transducers (105, 105') connected to one pipeline of one or more pipelines (103A, 103B) and configured for recording of movement of the pipeline. One or more parts of the meter, excluding vibrating section (471) of pipelines (103A, 103B), actuator (104) and measuring transducers (105, 105') are equipped with damping material (310) applied at least onto a section of the surface of the part of the meter for one or more parts of the meter, which reduces one or more resonant frequencies of vibrations of the part of the meter below one or more drive frequencies. |
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Method of molybdenum identification by cathode-anode voltammetry Method of molybdenum identification includes the determination of a complex compound of molybdenum with diethyldithiocarbaminate by cathode voltammetry . According to the invention 0.02 ml 1·10-4 M of sodium diethyldithiocarbaminate are introduced into a universal buffer solution, then a sample, which contains molybdenum is introduced, the solution is mixed for 10-30 s, a potential of electrolysis +0.4 V is supplied for 180 s on a glassy carbon electrode and current of a molybdenum peak is registered at a speed of the potential involute of 100 mV/s. A signal of molybdenum is registered and evaluated by a method of additives of certified solutions relative to a saturated silver chloride electrode. |
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Device for studies of dynamic state of rocks in well Device comprises the following elements: sensors (1-3) geoacoustic signals, first switch (4), first amplifier (5), filter unit (6), rectifier unit (7), second switch (8), analogue-digital converter (9), (10) digital signal transmission unit, (11) susceptometer, magnetometer measuring circuit (12) , analogue storage devices (13, 14), subtracting amplifier (15), rectangular voltage generator (16), ferrite antenna (17), third switch (18), three capacitors (19), second amplifier (20), mixer (21), low frequency filter (22), switchable generator (23), rectifier (24), control unit (25), power supply unit (26). |
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Devices and methods for control of liquid volume in tank This group of inventions proposes device (100) and a method for control of tank liquid volume. Device (100) includes detector (101) for recording of variations in liquid volume in the above tank during the first specified period, the first determination device (102) to determine whether the above variations are below the above first specified threshold value or not, and presentation device (103) to present the first on-line information in case the above variations are below the specified threshold value. Besides, the device includes source (10131) of the near IR-light; a variety of sensors (10132) of the near IR-light, which have a possibility of measuring intensity of the near IR-light emitted with the source of the near IR-light; the variety of the above sensors are arranged appropriately on a lateral side of the tank at different height. |
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Ultrasonic sensor with wide field of view, and manufacturing method of such ultrasonic sensor Scope of application: for diagnostics by means of an ultrasound. Essence of the invention consists in the fact that matrix grid (1') of ultrasonic converters includes central area (11') and at least three branch areas (13) each of which contains two-dimensional matrix grid (5) of ultrasonic converter elements (3). The central area includes at least three edges (15), from which the corresponding branch areas are continued. Each branch area (13) is bent relative to the axis parallel to edge (15) of central area (11), from which corresponding branch area (13) is continued. In this ultrasonic sensor containing the above platform of ultrasonic converters with branch areas connected to each other with a common preferably flat central area there can be obtained approximately an ideal matrix grid having a field of view of a spheroidal shape. |
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Method of mercury identification by cathode-anode voltammetry Method of mercury identification by cathode-anode voltammetry with the application of an electrode and background solutions includes the following succession of actions. First, a glassy carbon electrode is kept in a background solution at a potential from -0.4 to - 0.7 V for 120 s, then it is switched to a potential from + 0.4 to + 0.5 V and is kept for 10 s with the following registration of voltamperogram with a linear involute of the potential in the range from 0.4 V at 100 mV/s and a peak of the mercury reduction, observed at the potential in ranges (-0.05-0.05) V, and linear dependent on the mercury concentration in water solutions. A mercury signal is registered and evaluated by a method of additives of certified solutions relative to a saturated silver chloride electrode. |
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Method for heating and temperature determination of specimens Invention relates to measurement equipment and can be used for heating and temperature measurement of specimens, which are transparent in an infrared (IR) radiation region. The invention proposes a method for determination of temperature of specimens, which are transparent in an IR region, subject to action with flows of charged particles or electromagnetic radiation, which involves heating or cooling of specimens, measurement of temperature of specimens by means of thermocouples. Specimens are placed in a closed housing made from material with high thermal conductivity and located in a vacuum chamber; air is pumped out till the pressure is 10-3-10-5 Pa; the housing is heated or cooled at the specified temperature interval. Continuous preliminary temperature measurements are performed with thermocouples located outside and inside the housing together with the test specimens till temperature stabilisation moment. Then, final temperature measurements are performed with these thermocouples at a stabilisation moment of the temperature that coincides with the temperature of the test specimen till external action with flows of charged particles or electromagnetic radiation. External action is performed; after external action is completed, a specimen temperature measurement procedure is repeated. |
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Structure comprises a thermal motor with the capability of converting temperature difference in various points of space into motion of a wristwatch mechanism, in particular, a thermal motor with the capability to convert difference of temperatures near the surface of a watch user's arm and ambient temperature into motion of the wristwatch mechanism in the form of a thermal motor of a heat Stirling motor of gamma type, rotor type or free-piston type. The wristwatch mechanism with an automatic drive, and the mechanical wristwatch comprises the specified automatic drive. According to the method of automatic actuation of the mechanical wristwatch, the watch drive is a thermal motor with the possibility to convert difference of temperatures in different points of space in the watch body into motion of the watch mechanism, in particular, they use a thermal Stirling motor with the capability to convert difference of temperatures at the surface of the user hand at the side of the back cover of the watch and air temperature at sides of the watch body or at the side of the dial plate into motion of the watch mechanism. |
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Device comprises a base, six supports, the sample, the passive and active grips for the sample, a shaft, two pulleys, two split frames one of which is rigidly connected to the lever, two ball bearings, three flexible rods with loads, two flexible rods, and an electric furnace. The device additionally comprises a flexible rod with a load attached to the pulley, the gear motor is mounted, as well as a slider-crank mechanism, a frame connecting the two rockers, which are connected in the middle of their length with the cylindrical joints to the base, the slider of the slider-crank mechanism is rigidly connected to the frame. |
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Image forming apparatus comprises an image bearing element, a developing device for developing an electrostatic latent image on the surface of said image bearing element. Said developing device includes a developer transfer element for moving developer, which includes nonmagnetic toner and a magnetic carrier, to a developing position in which the developer transfer element is located opposite said image bearing element, detection means for detecting information correlating to the amount of charge of the toner of the developer in said developing device, and a controller operating during the image formation period, wherein images are continuously formed on a plurality of recording materials. The image formation period includes a first period and a second period, the first period corresponding to the interval between the time when recording material and the next recording material are subjected to image formation, and the duration of the first period being not less than a predetermined period. The controller is configured to stop or slow down movement of the developer transfer element during the first period, the reduced speed being at least the speed of the developer transfer element during the second period, wherein the image region corresponding to the recording material passes through the developing position. The controller is configured to control, based on the detection result of said detection means, said developing device such that the potential difference between a portion without an image of said image bearing element and bias voltage applied to the developer transfer element in the first period falls with fall in the detected amount of charge of toner, through which toner tends to be deposited less on the developer transfer element, with a lower amount of charge of toner in the first period than in the second period. |
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Intervention needle compatible with intense magnetic fields and integrated needle tracking system Invention refers to medical instrument engineering, represents an integrated system for tracking an intervention device, e.g. a needle or a catheter in an intense magnetic field, and a method for making it, and is applicable in a magnetic resonance imaging (MRI) system for biopsy for the purpose of proper diagnosing of various oncologic diseases. The system comprises an elongated rod with a tip made of a Si-plate, as well as one or more passive LC-chains arranged at the tip section; the LC-chain is made in the form of an inductance-capacitance resonator and arranged above the Si-plate. The magnetic field of the MRI activates the LC-chain and makes it generate vibrations that leads to generation of the secondary magnetic field recognisable by an MRI assembly, so that the LC-chain, as well as the tip section are visible on the MRI imaging. |
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Beam deflection measurement method On surfaces of upper and lower beam flanges at a point of maximum deflection Δ0 there bonded are strain gauges with similar characteristics directly onto the prepared surface of the upper and lower beam flanges. Operating and compensating strain gauges are bonded in the number of 3 to 5 pieces in each flange in a section 15 to 25 cm long with maximum deflection Δ0. The operating strain gauges are fixed along primary stresses σ along the beam, and compensating strain gauges are fixed between the operating strain gauges across the beam, protected against different actions with epoxy resin; bridge circuits are mounted for each pair of strain gauges (operating and compensating) and their wires are connected to a strain station; initial resistance R0 of the operating strain gauges is measured; with that, beam deflection Δ(t) at any point of time t is determined by the following formula: Δ(t)=Δ0+r·(|ΔR1(t)|+|ΔR2(t)|), where Δ0 - initial maximum beam deflection at point of time t=0, which is measured by means of a high-precision station rod and a level unit before bonding of the strain gauges; r - constant coefficient depending on design circuits and dimensions of the beam. |
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Installation for electrochemical survey of metal corrosion Installation for electrochemical survey of metal corrosion (Fig. 1) includes a circuit measuring electrode potentials, a circuit measuring corrosion current and a temperature regulator. The circuit measuring electrode potentials consists of electrodes (1) submersed into solutions placed in containers (4). Solutions are coupled by a salt bridge (3). A comparison electrode (e.g., silver-chloride electrode) (2) is submerged into the solution. The switch (6) and millivoltmeter (7) allow measuring potentials of metal electrodes in regard to the comparison electrode. The circuit measuring corrosion current consists of electrodes (1) submersed into solutions placed in containers (4). Solutions are coupled by a salt bridge (3). The following equipment is coupled in series between electrodes: a toggle switch (5), a calibrating resistor (8) with high-ohmic digital millivoltmeter (9) connected to it in parallel, a resistor box (10). The temperature regulator consists of a container filled with heat medium, for example water (13), with submerged vessels with surveyed electrodes as well as a stirrer (11) and thermometer (12). Electrochemical survey of the corrosion cell is made in the following way. The installation is assembled in compliance with the diagram (Fig. 1). Metal samples are isolated partially along its length by heat shrink tube or lacquer in order to create the unite area surface and to prevent contact of metal surface with solution-air phase boundary. Then the surface is treated in compliance with GOST 9.305-84. At the open toggle switch (5) potentials of the surveyed metal samples are measured when current is unavailable in the circuit (stationary potential of the metal electrode), which is countered in regard to standard hydrogen electrode (SHE). At closure of the circuit by the toggle switch (5) the required value of electric resistance is set by the resistance box (10) and voltage drop is measured at the calibrating resistor (8) by millivoltmeter (9). The obtained voltage value is used for calculation of current intensity in the in the surveyed circuit as per Ohm's law. According to obtained experimental data corrosion diagram is plotted in coordinates E(SHE)=f(I). In Fig. 2 there is an example of such diagram. Then calculation is made for degree of anode, cathode and ohmic control as well as for weight index of corrosion. |
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Measurement method of amplitude of bidirectional pulse of magnetic field At implementation of the method, two sensitive elements with a rectangular hysteresis loop are used, which are made from magnetic material having a coercitive force corresponding to the middle of a dynamic amplitude measurement range. When in an initial state, the first and the second sensitive elements are magnetised till saturation; then, they are placed at the test point of space and oriented in an opposite way. The first element is demagnetised with the first polarity of the determined pulse of a magnetic field, and the second one - with the second polarity. When the pulse to be determined is passed, first, as per residual magnetisation of the second sensitive element and its calibration chart obtained for a one-directional pulse, a value of the second polarity of the determined pulse of the magnetic field is evaluated; then, as per the value of the second polarity, residual magnetisation of the first sensitive element and its family of calibration charts obtained for one- and bidirectional pulses, an amplitude of the determined pulse of the magnetic field is evaluated. |
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Device and method for measurement of fatigue state of steel structure Invention relates to the field of engineering, which can perform remote monitoring of formation and growth of cracks in steel structures. A device includes a cover that has magnetic legs for attachment of the cover to a ferromagnetic structure, at least one pair of microprocessor-controlled voltage controls; with that, each voltage control has a wire of a sensor to an electrochemical fatigue sensor attached to the structure subject to an analysis for availability of cracks as a result of fatigue of metal in the steel structure, a power source and earthing; the voltage control is used to perform monitoring of fatigue state of the steel structure; each voltage control is electrically isolated from the rest part of an electrical mounting plate of the device and includes an analogue-to-digital converter. Voltage is applied by means of a voltage control through the above sensors during cyclic loading, and current flowing through the above sensors is measured, and the measurement result is digitised for the analysis of fatigue state of the steel structure. |
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Device for independent recording of pulse magnetic field Device includes the primary induction transducer, a resistor, a piece of a thin wire, a magnetoresistive bridge and electrical connectors. The transducer includes a magnetic field concentrator and a coil wound on the concentrator. The bridge made as per a thin-film integral technology includes magnetoresistors made from a ferromagnetic alloy having a rectangular hysteresis loop. The coil is connected through the resistor to the piece of the thin wire laid onto the surface of two of four magnetoresistors forming opposite arms of a magnetoresistive bridge. The device is connected through connectors to an information reading unit. |
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Optical method of measurement of object sizes and position and range finding locator Range finding locator for implementation of stereoscopic method consists of two parallel optical devices rigidly installed on the base, plane of measurements, base rotating mechanism with two axes, the units of control of base size and the distance between the plane of measurements and projection centres, systems of mapping of images on the plane of measurements, the control unit and evaluation unit, the control unit is connected to the base rotating mechanisms with two axes and devices for change the base length and distance between the planes of measurements and centres of optical devices. Meanwhile the planes of measurements are placed as matrixes on the common plane, parallel to the base, the outputs of which are connected to the evaluation unit. Two parallel matrix measuring planes are placed additionally on the same base, orthogonal to the first ones the sensing surfaces of which are facing to each other, the output of which is connected to the evaluation unit. |
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Method is carried out owing to the inclusion of a serial beat spectrum analyser in a given interval, a range autotracking unit , turned additional receiving antenna, a second receiver, a second beat voltage amplifier, a second pulse selector and a direction-finding unit. A transmitting antenna is rigidly connected to the turned additional receiving antenna, having an output connected to the first input of the second receiver, the second input of which is connected to the output of a high frequency generator, and the output is connected through the second beat voltage amplifier, through the second amplitude selector to the first input of the direction-finding unit, having a group of outputs connected to a first group of inputs of a secondary processing unit, a second group of inputs connected through the range autotracking unit to a group of outputs of a beat frequency determining unit, the input of which is connected through the serial beat spectrum analyser in a given range to the second input of the direction-finding unit and the output of the first amplitude selector. |
Another patent 2551224.