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35results about How to "Does not affect status" patented technology

Sea ship seawater pipeline stray current detection device

The invention provides a sea ship seawater pipeline stray current detection device. The sea ship seawater pipeline stray current detection device comprises a water supplying pipe segment connected with an original seawater pipeline through a flange and an integrated detection module arranged on the outer side wall of the water supplying pipe segment. Two side end surfaces, a flange surface and bolt holes of the water supplying pipe segment are respectively provided with an insulating coating. The integrated detection module comprises a current fettering unit, a weak current detection unit, an accumulation unit, an over-current alarm unit and a display unit. The current fettering unit is mainly based on an idea of first insulation and then local connection, two ends of the water supplying pipe segment are electrically connected with the original seawater pipeline through metal wires or alloy wires excellent in electric conductivity; the surface of the integrated detection module is covered by an electromagnetic shielding layer; and a reinforcing pipe segment is arranged on the outer layer of the electromagnetic shielding layer. The sea ship seawater pipeline stray current detection device can be used for realizing sea ship seawater pipeline stray current detection; and according to the magnitude and direction of a detected current, a stray current source is effectively searched, and stray current corrosion of the pipeline is effectively controlled.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Korotkoff-sound-based blood pressure measurement method and blood pressure measurement and cardiovascular system evaluation system

The invention discloses a korotkoff-sound-based blood pressure measurement method and a blood pressure measurement and cardiovascular system evaluation system, aiming to solve the problems of inaccurate blood pressure measurement and large influences of individual differences on measurement results in the prior art. Through combination of information detection at radial arteries with intelligent pressurization and pressure relief techniques, signal sources are stable, accurate capture of korotkoff sounds is ensured, and accordingly, the stability and reliability of the measurement results areimproved. Cardiovascular parameters of a human body can be calculated according to basic information of the human body and the measurement results, information of the human body, such as age, height,gender, weight and arm length, is entered, and a series of measured cardiac function parameters such as PWV (pulse wave velocity), heartbeat, heart output and blood viscosity are acquired through algorithm processing, so that an examinee is assisted in evaluating the state of his / her cardiovascular system.
Owner:云鸿创新信息科技(武汉)有限公司

Coffee sour milk and preparation method thereof

The invention provides a coffee sour milk, which is mixed by a sour milk base-material and a coffee paste, by taking weight percentage of the coffee sour milk, the coffee paste addition is 12wt%-18wt%. The invention also provides a preparation method of the coffee sour milk, which comprises the following steps: adding white sugar and a sweetener in milk, then adding caramel sauce to obtain sour milk material liquid; adding colloid and a starter in the sour milk material liquid for fermenting to obtain a sour milk base-material; extracting coffee bean to obtain a coffee extract, adding jam, an acidity conditioning agent in the coffee extract to prepare the coffee paste; mixing the sour milk base-material and the coffee paste, and preparing to obtain the coffee sour milk. The coffee sour milk has mouthfeel and taste of coffee and sour milk, and can keep state and local flavor in shelf life.
Owner:INNER MONGOLIA YILI INDUSTRIAL GROUP CO LTD

Laser beam welding technique of berylliumcopper alloy mold

The invention provides a process for carrying out laser welding on a beryllium copper alloy mould. The process comprises the following operation steps: firstly, carbon tetrachloride is used to clean the mould and the surface of a beryllium copper welding wire with phi of between 0.30 and 0.50 mm; a Nd:YAG pulse laser welder with power of between 75 and 300 W, laser wavelength of 1.06um and an X, Y and Z-axis processing machine is used to carry out wire filling and welding to the needed dimension under protection of argon gas; the welder is used to carry out local heat treatment on a welding part of the mould; and finally, the surface of the mould is subjected to final finishing to the needed precision. The laser facula is very small; the diameter of the local part of the weldable mould can reach about 1mm; the mould has small deformation; one welder simultaneously carries out wire filling and welding and heat treatment; the process is simple and saves investment; a weld bead of the mould has no disadvantages of cracks, pores and the like; and a weldless part of the mould is not influenced and has high rigidity, thereby ensuring the service life of the mould. The process is mainly used for rehabilitating the abrasion and local damage of the beryllium copper alloy mould.
Owner:成都敏捷制造工程有限公司

Method for measuring airship airbag volume based on gas concentration change

The invention belongs to the field of volume measurement of irregular inflatable envelope such as an airship envelope, and relates to a method for measuring airship airbag volume based on gas concentration change. The method for measuring the airship airbag volume based on the gas concentration change comprises the following steps of: detecting a gas volume concentration A1 (ppm), a temperature T1(DEG C), and a pressure p1 (Pa) of initial test gas in the airbag; charging the test gas into the airbag, and detecting a gas volume concentration A2 (ppm), a temperature T2 (DEG C), and a pressure p2 (Pa) of the test gas in the airbag; and a calculation formula of envelope volume as follows: V=22.4(delta)m / M{A2(273 / 273+T2)(P2 / 101325)-A1(273 / 273+T1)(P1 / 101325)}. The method for measuring the airship airbag volume based on the gas concentration change disclosed by the invention is easy to detect, can measure the airbag with any shape and any wrinkle due to free diffusion property of the gas, and even if a small amount of the test gas is added, the airship state is not affected.
Owner:63653 FORCES PLA

Ground cabling trough for bow-type optical cables

ActiveCN102565978AReduce kicking, bumpingReduce stepping, pressing and other damageOptical fibre/cable installationFiberEngineering
The invention belongs to optical cable cabling trough devices for communication network Fiber To The Home (FTTH) optical fiber comprehensive wiring. A ground cabling trough for bow-type optical cables comprises a trough body. Bow-type optical cable troughs are arranged in the trough body, the upper surface of the trough body is in a shape of a circular arc, protruding portions which are in a direction of the center of the circular arc are disposed in the trough body, and the height of the protruding portions are parallel and level to lower bottom surface of the cabling trough. The ground cabling trough coordinates with an inside corner of the cabling trough, the bow-type optical cables are led from a wall surface to a ground surface, the surface is designed in the arc structure, four bow-type optical cable troughs are arranged, the protruding portions are used for improving the strength and rigidity of the cabling trough, a cambered surface is combined with the ground surface, kicking and bumping of the ground cabling trough are avoided when users pass through, and the cabling trough can not be damaged and deformed when treaded, therefore the bow-type optical cables are effectively protected to smoothly pass through the ground surface under the condition of open wire distributing, a plurality of cabling troughs can be connected to the cabling trough through cabling trough joints, and the distance is not limited.
Owner:NANJING HUAMAI TECH

Switch-off energy recycling method and circuit

The invention provides a switch-off energy recycling method and circuit. The switch-off energy recycling circuit comprises a capacitor C1, a capacitor C2 and an AC-DC converter, wherein the AC-DC converter comprises a rectification bridge B1 and a flyback circuit, the flyback circuit comprises a transformer T1, a primary circuit and a secondary circuit, a primary winding of the transformer T1 forms the primary circuit, a secondary winding of the transformer T1 forms the secondary circuit, one end of the capacitor C1 is led out and used as a first input end of the switch-off energy recycling circuit, the other end of the capacitor C1 is connected with one end of the capacitor C2, the other end of the capacitor C2 is led out and used as a second input end of the switch-off energy recycling circuit, one end of the capacitor C2 is further connected with an AC input end of the rectification bridge B1, the other end of the capacitor C2 is further connected with another one AC input end of the rectification bridge B1, a DC output end of the rectification bridge B1 is connected with the primary circuit of the flyback circuit, and an output end of the secondary circuit of the flyback circuit is led out and used as an output end of the switch-off energy recycling circuit.
Owner:MORNSUN GUANGZHOU SCI & TECH

High-power resonant switch

The invention discloses a high-power resonant switch. The high-power resonant switch comprises a transmitting branch and a receiving branch, wherein the transmitting branch comprises a matching network N2, a switch SW1 and a transmitting port TX, the transmitting port TX is connected in series with a switch SW1 and then is connected with an ANT port, and a matching network N2 is arranged between and connected with the transmitting port TX and the switch SW1. and the receiving branch comprises a matching network N1, a switch SW2 and a receiving port RX, the receiving port RX is connected in series with the matching network N1 and then is connected with the ANT port, and the switch SW2 is arranged between and connected with the receiving port RX and the matching network N1 and then is grounded. According to the invention, when the matching network N2 and ANT-TX are connected in parallel at the TX, the isolation of the TX-RX is increased, so center frequency can be adjusted, the problems that an inductor is matched by using a single capacitor and the bandwidth is too narrow are solved, and reconfigurable frequency is realized. During ANT-RX, the insertion loss of the ANT-RX is reduced.
Owner:南京元络芯科技有限公司

Multi-domain flexible communication flexible forwarding processing system

The invention discloses a multi-domain flexible communication flexible forwarding processing system, which is characterized in that an on-satellite time reference generation module autonomously generates time control information required by dynamic exchange and a time reference broadcast signal to the ground according to the exchange relation of the system, and broadcasts a time synchronization signal to the ground in a planned sub-band; secondly, a synchronization dynamic comprehensive switching module realizes dynamic channelized switching under the control of a periodic control signal generated by a time reference generation module, and supports different mapping relationships of sub-bands of each port at different times; and finally, the ground equipment measures a time difference value between two continuous time broadcast signals, compares the time difference value with a value given by an exchange period counter, calculates calibration parameters of frequency and time, and compensates the calibration parameters, so that satellite-ground synchronization is realized. According to the method, dynamic and flexible forwarding combining the time domain and the frequency domain is realized, and the use efficiency of frequency resources and the networking flexibility are further improved.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Broadband chaotic oscillating circuit

A broadband chaotic oscillation circuit comprises a radio frequency triode, a frequency selection network module, a bias module and an output module. Wherein the frequency selection network module isconnected with the base electrode of the radio frequency triode to form a Colpitts oscillator, the bias module is connected with the base electrode and the emitter electrode of the radio frequency triode, and the collector electrode of the radio frequency triode is a signal output node and is connected with the output module. The circuit is based on a Colpitts oscillating circuit, and utilizes double-resistor voltage division bias to supply power to a base electrode of a radio frequency triode. And the resonant network positioned at the base electrode and the emitter electrode is matched withthe radio frequency triode to realize generation of chaotic signals. The signal output node is located at the collector electrode, the load resistor of the output module and the inductor connected with the collector electrode in series form an RLC series resonance network, the resonance network does not affect the circuit state, the signal frequency spectrum can be improved by adjusting the resonance frequency, and then broadband signal output is achieved. The circuit has high load capacity, can generate continuous broadband chaotic signals, has flat signal frequency spectrums, and is suitablefor broadband radio frequency wireless communication.
Owner:NANJING UNIV OF POSTS & TELECOMM +1

Maintaining ims registration while disconnected from ip bearer

A proxy maintains registration in an IP Multimedia Subsystem (IMS) network for a user equipment while the user equipment is disconnected from the system. The user equipment connects to the proxy and establishes a proxy session with the proxy. The proxy opens a proxy session for the user equipment, establishes a registration within said IMS network for IMS services on behalf of the user equipment; and maintains the registration for the user equipment for the duration of the proxy session. While the proxy session is ongoing, the user equipment can disconnect from the IP proxy.
Owner:辛赫罗尼卡公司

Researching and planting mechanism of Carya illinoinensis (Wangenh.) K. Koch

The invention discloses a researching and planting mechanism of Carya illinoinensis (Wangenh.) K. Koch. The researching and planting mechanism comprises an enclosure, wherein the bottom of the enclosure is connected with a plurality of idler wheels through a fixing frame; the outer side wall of the enclosure is fixedly connected with two inclined rods; the ends, which are far away from the enclosure, of the two inclined rods are jointly fixedly connected with an arm rod; one side, which is far away from the inclined rods, of the enclosure adopts a cambered surface structure; in addition, a through hole is penetrated into the cambered surface and is rotatably connected with a rotary cover; the size of the rotary cover and the size of the through hole are mutually matched; the top wall of the enclosure is provided with a material inlet; the material inlet is in sealing connection with a sealing plug; a plantation structure is arranged in the enclosure; and the outer side wall of the enclosure is connected with a soil flattening structure. The researching and planting mechanism of the Carya illinoinensis (Wangenh.) K. Koch has the advantages that a soil layer in a forward-moving route during plantation is flattened, and soil after plantation is carried out is subjected to soil flattening work. The researching and planting mechanism is convenient in operation and can be conveniently used.
Owner:NANJING FORESTRY UNIV

Non-access stratum abstract authentication method in trunking communication system

ActiveCN107801186ARealize two-way authenticationAvoid attackSecurity arrangementComputer hardwareCommunications system
The invention discloses a non-access stratum abstract authentication method in a trunking communication system, the method comprises the following steps: UE sends a cluster registration request message to a target T-CN, the message carries a login authentication indicating information and a first interpellation parameter value for interpellating a network, and thus, the target T-CN is enabled to feed back a cluster registration accepting message to the UE based on the login authentication indicating information; the UE authenticates the target T-CN based on a first response parameter value which is used for authenticating the network and carried in the cluster registration accepting message; if authentication is successful, based on a second interpellation parameter value which is used forinterpellating the UE and carried in the cluster registration accepting message, the UE obtains a second response parameter value used for authenticating the UE; the UE sends a cluster registration completed message to the target T-CN, the message carries the second response parameter value, thus, the target T-CN is enabled to authenticate the UE based on the second response parameter value, andnon-access stratum abstract authentication is realized. The method provided by the invention can realize bidirectional authentication of UE and T-CN.
Owner:POTEVIO INFORMATION TECH

Integrated C-shaped wire clamp

The invention provides an integrated C-shaped wire clamp, which comprises a clamp base, a J-shaped left movable clamping block, a J-shaped right movable clamping block, a left screw rod and a right screw rod, wherein the clamp base comprises a left fixed wiring duct arm, a right fixed wiring duct arm and a box-shaped base; the left fixed wiring duct arm and the right fixed wiring duct arm are fixed at the upper part of the box-shaped base; multiple rows of teeth are arranged at the lower parts of the straight line parts of the J-shaped left movable clamping block and the J-shaped right movable clamping block and are arranged in an inner cavity from two ends of the box-shaped base separately; the left screw rod and the right screw rod are arranged in the inner cavity from two ends of the box-shaped base separately; and threads of the left screw rod and the right screw rod are meshed with the teeth at the lower parts of the straight line parts of the J-shaped left movable clamping block and the J-shaped right movable clamping block respectively. Wiring ducts on the left side and the right side independently work and can be individually conducted when installed or dismantled, and when one guide wire is operated, the state of the other guide wire is not affected. Furthermore, various parts are combined and installed into a whole for use, so that the operation is simple and convenient.
Owner:临泉县卡天下电子商务有限公司

A centralizer with self-adaptive variable diameter

The invention relates to a centralizer with self-adaptive variable diameter used in the field of oil and gas well engineering. It solves the problems of poor centering of the drill string and high frictional resistance of the drill string. The technical solution is: the upper end of the stator shell is connected with the lower end of the upper joint with screws, and the lower end of the stator shell is connected with the upper end of the connecting cylinder with a thread; the rubber stator is fixed in the inner cavity of the stator shell; the screw rotor is placed in the inner cavity of the rubber stator, and the bearing a is installed in the screw. The upper end of the outer circle of the rotor; the transmission screw is placed in the inner cavity of the connecting cylinder, and the transmission screw rotates flexibly in the inner cavity of the connecting cylinder; the upper end of the lower joint is connected with the lower end of the connecting cylinder with screws; the lower end of the roller and the support arm a is hinged, and the roller and the support arm b The lower end is hinged. The present invention can realize the function of effectively changing the diameter in the downhole, the roller and the well wall are fully attached, and the drill string is well centered; the roller and the well wall are purely rolling, the axial friction between the drill string and the well wall is small, and the drill string is fed convenient.
Owner:SOUTHWEST PETROLEUM UNIV

Shunt valve and shower

PendingCN113623425AAvoid getting wetImplement independent resetBathsDouchesEngineeringMechanical engineering
The invention discloses a shunt valve and a shower. The shunt valve comprises a valve body, a rotating rod, a plugging piece, a first elastic piece and a second elastic piece; the valve body is provided with a valve cavity, a water inlet, a first water outlet and a second water outlet, wherein the water inlet, the first water outlet and the second water outlet are communicated with the valve cavity; the rotating rod and the valve body form rotating fit and are in axial limiting connection, and the plugging piece is arranged in the valve cavity and is in rotation-stopping fit with the valve body; the rotating rod and the plugging piece are connected through a spiral protrusion and a spiral groove, and the two ends of the first elastic piece act on the rotating rod and a valve rod correspondingly so as to drive the rotating rod to reset; and the rotating rod drives the plugging piece to move to the first position or the second position so as to realize water outlet switching. After being released, the rotating rod is driven by the first elastic piece to reset, and the plugging piece is still correspondingly stopped at the first position or the second position under the action of water pressure; and the second elastic piece is arranged on the plugging piece in a sleeving manner, and when the plugging piece moves to the second position, the second elastic piece applies acting force for moving towards the first position to the plugging piece. The shunt valve provided by the embodiment can automatically reset after water is cut off. The shower comprises the shunt valve.
Owner:FUJIAN XIHE SANITARY WARE TECH

Lotus root harvester with water driving function

The invention discloses a lotus root harvesting machine with a water driving function, which comprises a ship body, the rear side of the ship body is connected with a collecting box, an air pump communicates with two sets of air rods through air pipes, and nozzles are installed at the lower ends of the air rods. By arranging the collecting box, a propeller and brush rods, the lotus root harvester provides power through rotation of the propeller in the collecting box, the air pump sprays high-pressure air out of the nozzles through the air rods, sludge wrapping the surfaces of lotus roots is scattered, the lotus roots emerge from the water surface, and the floating lotus roots enter the collecting box along with water flow under the action of high-speed rotation of the propeller. By means of the collecting mode, more time and labor are saved, the collecting efficiency is high, due to the fact that the propeller continuously rotates, water in the collecting box continuously flows at a high speed, the effect of cleaning the lotus roots in the collecting box is achieved, meanwhile, the propeller drives the plurality of brush rods to rotate through the gear box to clean the lotus roots, and therefore driving energy is utilized to the maximum degree, and the practicability of the lotus root harvester is improved.
Owner:南京禧来旺农业科技有限公司

A method and device for dynamic lossless bandwidth adjustment of M-OTN system

ActiveCN112752173BRealize lossless dynamic adjustmentSolve the problem of inter-domain bandwidth adjustmentMultiplex system selection arrangementsHigh level techniquesEngineeringLink data
The invention discloses a method and device for dynamic lossless bandwidth adjustment of an M‑OTN system. A source node adds bandwidth adjustment information issued by a management and control platform to the OSU frame overhead and transmits it downstream node by node; after a sink node extracts the bandwidth adjustment information from the OSU frame overhead, it calculates whether the remaining bandwidth resources of the node meet the adjustment requirements, and transmits corresponding bandwidth adjustment confirmation information upstream one by one; After the bandwidth adjustment command is extracted from the overhead, each node feeds back the confirmation information of the bandwidth adjustment command to the upstream, and completes the adjustment of the pipeline bandwidth of each node in the link and the adjustment of the client signal bandwidth step by step. This solution does not need to interrupt the link data transmission processing process, nor does it need a unified network management and control platform to control operations, which meets the actual use requirements of the operator's network.
Owner:FENGHUO COMM SCI & TECH CO LTD +1

Novel cleansing milk containing liquid crystal structure and preparation method of novel cleansing milk

The invention belongs to the technical field of daily cosmetics, and relates to novel cleansing milk containing a liquid crystal structure and a preparation method of the novel cleansing milk. The preparation method of the novel cleansing milk comprises the steps that lauramide propyl betaine, potassium lauryl ether phosphate and the like are added with water for being heated and dissolved and a dissolved dimeric amino acid salt compound liquid crystal emulsifier is added, uniform stirring is carried out, then plant essential oil is added, a crylic acid (ester) cross-linked polymer is added after temperature reduction, polyquaternium-43, citric acid and the like are added when system temperature is reduced to 35-45 DEG C, pH is controlled at 6.5-7.5, and after physical and chemical indexespass the inspection, discharging is carried out to obtain the novel cleansing milk containing the liquid crystal structure. The preparation technology is simple, the liquid crystal emulsifier and a phosphate ester surfactant system act to rapidly form a large number of crystal lattice, the lattice can be wrapped with added grease through simple stirring, a foam state is not affected, the good refreshing and foam effects can be brought, the effects of comfort, no stimulation, no tightness and the light after washing are achieved, and all-around value ideas are brought for cleansers.
Owner:HAINAN JINGRUN PEARL BIOTECH

A stray current detection device for seawater pipelines of marine ships

The invention provides a sea ship seawater pipeline stray current detection device. The sea ship seawater pipeline stray current detection device comprises a water supplying pipe segment connected with an original seawater pipeline through a flange and an integrated detection module arranged on the outer side wall of the water supplying pipe segment. Two side end surfaces, a flange surface and bolt holes of the water supplying pipe segment are respectively provided with an insulating coating. The integrated detection module comprises a current fettering unit, a weak current detection unit, an accumulation unit, an over-current alarm unit and a display unit. The current fettering unit is mainly based on an idea of first insulation and then local connection, two ends of the water supplying pipe segment are electrically connected with the original seawater pipeline through metal wires or alloy wires excellent in electric conductivity; the surface of the integrated detection module is covered by an electromagnetic shielding layer; and a reinforcing pipe segment is arranged on the outer layer of the electromagnetic shielding layer. The sea ship seawater pipeline stray current detection device can be used for realizing sea ship seawater pipeline stray current detection; and according to the magnitude and direction of a detected current, a stray current source is effectively searched, and stray current corrosion of the pipeline is effectively controlled.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Pedicle screw implantation sighting device

The pedicle screw placement sighting device comprises a sighting device body, a disassembling mechanism, an inflation mechanism, a limiting mechanism and an adjusting mechanism, the disassembling mechanism is arranged on the outer side of the lower end of the sighting device body, the inflation mechanism is arranged at the upper end of the sighting device body, and the limiting mechanism is attached to the upper portion of the outer portion of the sighting device body. And an adjusting mechanism is arranged on the side of the limiting mechanism. According to the pedicle screw implantation sighting device, due to the fact that the limiting frame is fixedly connected with the extension rod, the extension rod is parallel to the spirit bubble assembly, and the movable rod is in threaded connection with the extension rod, medical staff manually adjust the positions of the movable rod and the supporting rod to erect the movable rod and the supporting rod on the two sides of the body of an operation staff; and whether the sighting device body is vertical or not is judged through the spirit bubble assembly, so that the sighting device body is vertically limited while the sighting device body is erected, the sighting device body is vertical to the vertebral plate of the isthmus of the section, vertical accurate operation of subsequent surgical instruments is facilitated, and the surgical efficiency is improved.
Owner:郑州市骨科医院

Self-adaptive diameter-variable centralizer

The invention relates to a self-adaptive diameter-variable centralizer used in the field of oil and gas well engineering. The problems that a drill stem is poor in centering degree and large in friction resistance are solved. According to the technical scheme, the upper end of a stator casing is in threaded connection with the lower end of an upper joint, and the lower end of the stator casing isin threaded connection with the upper end of a connecting cylinder; a rubber stator is fixed in an inner cavity of the stator casing; a spiral rotor is arranged in an inner cavity of the rubber stator, a bearing a is mounted at the upper end of the outer circle of the spiral rotor; a transmission lead screw is arranged in an inner cavity of the connecting cylinder and flexibly rotates in the innercavity of the connecting cylinder; the upper end of a lower joint is in threaded connection with the lower end of the connecting cylinder; and the rolling wheels are hinged to the lower ends of supporting arms a, and the rolling wheels are hinged to the lower ends of supporting arms b. The self-adaptive diameter-variable centralizer can realize an effective diameter-variable function underground,the rolling wheels are completely attached to the well wall, and the centering degree of the drill stem is good; and the rolling wheels and the well wall do pure rolling, axial friction force betweenthe drill stem and the well wall is small, and the drill stem is convenient to feed.
Owner:SOUTHWEST PETROLEUM UNIV

Ground cabling trough for bow-type optical cables

The invention belongs to optical cable cabling trough devices for communication network Fiber To The Home (FTTH) optical fiber comprehensive wiring. A ground cabling trough for bow-type optical cables comprises a trough body. Bow-type optical cable troughs are arranged in the trough body, the upper surface of the trough body is in a shape of a circular arc, protruding portions which are in a direction of the center of the circular arc are disposed in the trough body, and the height of the protruding portions are parallel and level to lower bottom surface of the cabling trough. The ground cabling trough coordinates with an inside corner of the cabling trough, the bow-type optical cables are led from a wall surface to a ground surface, the surface is designed in the arc structure, four bow-type optical cable troughs are arranged, the protruding portions are used for improving the strength and rigidity of the cabling trough, a cambered surface is combined with the ground surface, kicking and bumping of the ground cabling trough are avoided when users pass through, and the cabling trough can not be damaged and deformed when treaded, therefore the bow-type optical cables are effectively protected to smoothly pass through the ground surface under the condition of open wire distributing, a plurality of cabling troughs can be connected to the cabling trough through cabling trough joints, and the distance is not limited.
Owner:NANJING HUAMAI TECH

Data frame format suitable for use in satellite-ground data collection system

The embodiment of the invention provides a data frame format suitable for a satellite-ground data collection system. The data frame format is characterized by comprising a control segment and a transmission segment, wherein the control segment sequentially comprises a first guide code, a first ASM and a rate identification; the control segment is used for carrier capture, bit synchronization, frame synchronization and control information acquisition of a receiver; the transmission segment sequentially comprises a second guide code, a second ASM, coded data and an EOT bit; the transmission section is used for controlling synchronization and transmission of user data of the data collection system after switching.
Owner:SHANGHAI AEROSPACE ELECTRONICS CO LTD +1

An automatic feedback control system for buffering sudden temperature changes of dry-type reactors

The invention discloses an automatic feedback control system for the temperature shock of a buffering dry type electric reactor. The automatic feedback control system is composed of a variable-air-speed axial flow fan body (1), a 24-hour real-time online detecting and signal collecting and processing state trigger source (2) and a programmable logic control device (3). The automatic feedback control system has the function of relieving the phenomenon that when a dry type reactor is input and cut off, shock heating and shock refrigerating of the interior of the reactor happen, and therefore turn-to-turn insulation becomes poor, and the automatic feedback control system has the advantages of being safe and stable in operation, compact, low in cost, small in occupied area and high in buffering temperature shock efficiency.
Owner:YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST

Method for identifying wine commodity from outside of light-transmitting packaging bottle

PendingCN114018899ALow costImportant market application valueRaman scatteringProcess engineeringRaman scattering spectra
The invention discloses a method for identifying wine commodities from the outside of a light-transmitting packaging bottle, and belongs to the technical field of wine commodity identification. The invention aims to solve the problem that the difference of Raman spectrums of different wine commodities is fine, so that wine identification is difficult to carry out by a method for identifying the difference between the spectrums. The method comprises the following steps: determining an SVM classification detection model by adopting dimension-reduced spectral data; collecting the Raman scattering spectrum of the wine commodity from the outside of the light-transmitting packaging bottle by adopting a Raman spectrum detector; carrying out dimension reduction processing on the Raman scattering spectrum by using a principal component analysis method to obtain a dimension-reduced spectrum to be identified; inputting the to-be-identified spectrum after dimension reduction into an SVM classification detection model to obtain a classification region represented by a classification label; comparing the classification areas with known classification areas of the to-be-identified wine commodity, and if the classification areas are the same, determining that the identification result is true wine, otherwise, determining that the wine is adulterated wine. The method is used for lossless identification of wine commodities.
Owner:HARBIN INST OF TECH
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