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Retractable folding quad rotor
The invention relates to a retractable folding quad rotor which comprises a central supporting mechanism and four sets of propeller mechanisms. The improvement of the retractable folding quad rotor is as follows: the four sets of propeller mechanisms are four sets of retractable propeller mechanisms with identical structures; each set of retractable propeller mechanism comprises a bevel pinion, a telescopic rod, a propeller, a motor and a lifting arm mechanism, and also comprises a large conical gear and a servo motor; the servo motor, the large conical gear and the four bevel pinions form driving mechanisms of telescopic rods of the four sets of propeller mechanisms; and under the drive of the servo motor, the four bevel pinions respectively and simultaneously drive the four telescopic rods to realize outward retraction or inward retraction by virtue of screw drive of the screw rods. According to the improvement, four sets of folding mechanisms are arranged, wherein each set of folding mechanism drives each set of telescopic propeller mechanism to fold or unfold. According to the quad rotor, the telescopic mechanisms and the folding mechanisms are additionally arranged, so that the four-rotor body is greatly retracted; and compared with the conventional product, the retractable folding quad rotor disclosed by the invention has the advantages that the size of the quad rotor is effectively reduced, and the quad rotor is convenient to carry.
Owner:HEFEI UNIV OF TECH
Double electromagnet driving micro flapping wing aircraft
ActiveCN103708032AReduce stiffnessLow potential energy storageOrnithoptersFlapping wingFlight vehicle
The invention provides a double electromagnet driving micro flapping wing aircraft which comprises a driving mechanism, a transmission mechanism and wing mechanisms, wherein the driving mechanism consisting of a permanent magnet and two groups of coils drives the connecting rod type transmission mechanism connected by two sets of flexible hinges; the wing mechanisms are installed and fixed on both sides of the transmission mechanism through dovetail grooves, and flap happens along with rotation of a connecting rod at the output end of the transmission mechanism so as to generate lift required by motion of the aircraft. The aircraft provided by the invention has two groups of coils which respectively drive the two wings, and various turning movements and multi-directional linear flight of the aircraft can be realized by respectively adjusting the flapping rule of the two wings.
Owner:SHANGHAI JIAO TONG UNIV
Method, system for tracking and monitoring sea surface warship and storage medium
ActiveCN109409283AEliminate distractionsZoom inImage analysisScene recognitionSea wavesUncrewed vehicle
The invention provides a sea surface ship tracking and monitoring method, which comprises the following steps: a picture collecting step: receiving a picture collected by aerial photography of a fixed-wing unmanned aerial vehicle; Image Data Analysis Subsystem Steps: Image data analysis subsystem is an advanced in-depth learning pattern recognition system based on cloud platform. The system can detect the position of each ship, identify the type of the ship, and measure its size. By matching the images of the ship, the system can also track the ship's trajectory by using two consecutive high-altitude images. The invention has the following beneficial effects: 1, the size of the ship can be known; 2, in addition to that move target, the still target can be detected; 3. The UAV is flying andcan control the detection area; 4. The velocity, height and size of the target have little influence on the tracking. 5. The influence of sea clutter, hidden pile and sea wave disappeared completely.
Owner:SHENZHEN JINRUN IND
Underground concrete mixer for coal mine
InactiveCN102581954ALarge expansion ratioOvercome the shortcoming that direct drive is not easy to realize overload protectionMixing operation control apparatusCement mixing apparatusHydraulic cylinderHydraulic motor
The invention provides a concrete mixer which is compact in structure and applicable to an underground tunnel of a coal mine. The concrete mixer mainly comprises a rack, a feed mechanism and a mixing mechanism, wherein the feed mechanism is arranged at the front end of the rack, and the mixing mechanism is arranged on the rack. The mixing mechanism can utilize a concrete raw material feeding funnel with fixed proportion to ensure the proportion of concrete and utilizes an adjustable quantitative water supply part to ensure the water-cement ratio of the concrete, a hydraulic cylinder drives a chain wheel to be lifted to feed, and after a hydraulic motor drives the mixer to mix, the hydraulic cylinder pushes the funnel to turn to pour the mixed concrete into a hopper of an underground concrete wet-spray machine. On the premise of not reducing the mixing capacity of the concrete mixer, movement pieces of the concrete mixer occupy the smallest space, so that the concrete mixer is suitable for tunnel work.
Owner:SHANDONG UNIV OF SCI & TECH
Lateral current collector
InactiveCN1760059AZoom inAchieving Parallel ScalingPower current collectorsEngineeringTorsion spring
A lateral current collector is composed of a current collecting slide block, a swing mechanism, and a base plate. Said swing mechanism connected between said slide block and base plate consists of a 4-connecting-rod unit comprising primary swinging bar, secondary swinging bar, swinging fork bar and the supporter of primary swinging bar, a final swinging bar, and a tensional spring connected between primary swinging bar and base plate.
Owner:NAT UNIV OF DEFENSE TECH
Airport runway foreign object damage detection system
PendingCN107300722ARealize identificationEasy to identifyOptical detectionForeign object damageLight spot
The invention relates to an airport runway foreign object damage detection system which comprises a terminal and at least one light emitting device and at least one camera device connected to the terminal. Each light emitting device is arranged at one side of a runway and is used for emitting near infrared light to illuminate the runway to generate light spots, and a projection of a foreign object is generated when the foreign object exists on the runway covered by the light spots. Each camera device is arranged at the other side of the runway and is used for shooting the light spots on the runway to obtain an image of the light spots. The terminal is used for processing the image, obtaining position information of the foreign object when the projection of the foreign object in the image is detected, and carrying out alarming. The invention provides the airport runway foreign object damage detection system, the identification of a micro foreign object is facilitated, the sensitivity of monitoring is improved, the automatic identification of FOD is realized, problems of low accuracy and low efficiency of artificial identification of FOD are avoided, and the projection of the foreign object can be quickly and accurately captured even under a strong sunlight background or in a condition of low visibility and water or oil on the runway.
Owner:孙天宇
Stroke amplifying device for workbench of printing machine
ActiveCN105082736ASimple structureIncrease production capacityScreen printersEngineeringMechanical engineering
The invention discloses a stroke amplifying device for a workbench of a printing machine. The stoke amplifying device for the workbench of the printing machine is characterized in that the stroke amplifying device comprises a base, a hinge lug, a slideway, a lower rack, a crank, the workbench and an upper rack; the base is used for fixing a stroke amplifying device body for the workbench of the printing machine; the hinge lug is arranged at one end of the base and used for connecting the base with the crank; the slideway is fixed to the other end of the base; the lower rack is arranged in the slideway and can slide back and forth in the slideway; one end of the crank is hinged to the hinge lug, and the other end of the crank is connected with a connecting rod; the connecting rod is hinged to the center of a first driving gear, and the first driving gear and a second driving gear are connected through the connecting rod; the workbench is located above the stroke amplifying device body for the workbench of the printing machine and used for various kinds of printing operation; the upper rack is fixed below the workbench. The stoke amplifying device for the workbench of the printing machine is simple in structure, all adopted components are standard pieces, production, application and popularization are easy, and the transformation potential is great.
Owner:GUANGXI UNIV
Wafer clamping device utilizing spring tensioning force feedback and motor driving force feedback
ActiveCN103887222ASolve the problem of transmission pollutionGuaranteed reliabilitySemiconductor/solid-state device manufacturingMotor driveTransmission belt
A wafer clamping device utilizing spring tensioning force feedback and motor driving force feedback comprises a base, a front clamp and a rear clamp, wherein the front clamp and the rear clamp are arranged on the base and used for clamping wafers, a driving mechanism used for controlling the front clamp and the rear clamp to move is further arranged on the base, the driving mechanism is composed of a front clamp connecting mechanism, a rear clamp connecting mechanism and a power source, the power source comprises a transmission belt, a driving unit and a driving unit support, the driving unit is placed on the base through the driving unit support, the transmission belt is meshed with the driving unit and reciprocates leftwards and rightwards alternately under the driving of the driving unit, one end of the transmission belt is connected with the front clamp through a rear spring tensioning mechanism, and the other end of the transmission belt is connected with the rear clamp through a front spring tensioning mechanism. The device effectively solves the problem of a vacuum absorption type clamping device that wafer transmission pollution can be caused due to the contact between the vacuum absorption type clamping device and the back sides of wafers, water clamping reliability is guaranteed, and cross contamination between wafers is avoided.
Owner:THE 45TH RES INST OF CETC
On-orbit maintenance quick connection system based on bi-conjugate cam assistance principle
InactiveCN107346846AEnhanced capabilities for on-orbit maintenanceGet rid of dependenceCoupling device engaging/disengagingCoupling device detailsAviationEngineering
An on-orbit maintenance quick connection system based on a bi-conjugate cam assistance principle relates to the field of on-orbit maintenance in aviation and spaceflight. The problem on how to complete an on-orbit maintenance process of an on-orbit replaceable unit with large plugging and unplugging force quickly and assist astronauts is solved. The on-orbit maintenance quick connection system includes a quick jack mounting plate on which a quick jack and positioning guide pins are fixed, an on-orbit replaceable unit, a quick socket mounting plate which is fixed to the lower end of the on-orbit replaceable unit, two assistance support lugs which are respectively fixed to the left and right sides of the lower end of the on-orbit replaceable unit and are symmetric about the center of mass of the on-orbit replaceable unit, and two assistance mechanisms which are respectively fixed to the two sides of the quick jack mounting plate. The two assistance mechanisms have a one-to-one correspondence relationship with the two assistance support lugs. When the two assistance mechanisms are shifted, the two assistance support lugs are driven to make the quick jack plugged into a quick socket. The two assistance mechanisms rotate 90 degrees simultaneously to complete plugging and unplugging of the on-orbit replaceable unit. The on-orbit maintenance quick connection system has the advantages of simple structure, low weight, small size and easy installation.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI +1
Information processing apparatus, information processing method, and program
InactiveCN102298492AZoom inDigital data information retrievalSpecial data processing applicationsInformation processingInformation handling
The invention provides an information processing apparatus, an information processing method and a program, and provides logic for formatting electronic content according to the apparatus and the method. In one implementation, the apparatus of the invention includes a generation unit configured to generate a signal for displaying content to a user on a display screen, and a receiving unit configured to receive information associated with a selection by the user of the displayed content. An identification unit is configured to identify a content element corresponding to the displayed content selection, based on at least the received information, and a formatting unit is configured to format the identified content element by applying a formatting structure to the identified content element. The generation unit generates a signal for displaying the formatted content element on the display screen.
Owner:SONY CORP
Method for displaying three-dimensional scatter diagram in browser and system thereof
ActiveCN106971417ASave computing powerReduce the numberInput/output processes for data processing3D-image renderingThree-dimensional spaceComputer module
The invention discloses a method for displaying a three-dimensional scatter diagram in a browser and a system thereof, and relates to the field of three-dimensional scatter diagram display. The method for displaying the three-dimensional scatter diagram in the browser comprises the following steps that parameters are initialized, including coordinate system parameters, three-dimensional space background color, coordinate axes, reference line and other information; a series processing is performed on the received data; the processed data are rendered in a given container by using the WebGL technology; and the control operation of the view scene. The system for displaying the three-dimensional scatter diagram in the browser comprises a parameter initialization module, a data processing module, a three-dimensional scatter diagram display module and a human-computer interaction module. The method and the system are based on the browser and wide in the range of application; the performance is optimized according to the change of the visual angle; the performance is optimized according to the density of points; the data are dynamically displayed; the computing pressure of the server is low; and the interactivity is high.
Owner:CHENGDU SEFON SOFTWARE CO LTD
Mechanical opening parallel mechanism with sector gate for quantitative loading of skip
Owner:CHINA UNIV OF MINING & TECH
Extension type mobile communication terminal for display part
InactiveCN1960385ADistance minimizationZoom inRadio/inductive link selection arrangementsTelephone set constructionsDisplay boardBroadcasting
The present invention belongs to a mobile communication terminal field and provides an extension type mobile communication terminal for a display part. The characteristic of the mobile communication terminal is including the following parts: a casing with a display window; a first display board fixed in said casing and displaying through said display window; a second display board moving between the first position shuted out by the first display board and the second position parallel with said first display board and able to slide in or out of said casing. In the present invention, the mobile communication terminal can extend the display part of the mobile communication terminal through two parallel display boards and can output amplified static image and dynamic image shot by a camera, thus, said function is very useful for the moblie communication terminals having a camera function, a dynamic image game function or a broadcasting function.
Owner:LG ELECTRONICS (CHINA) R&D CENT CO LTD
Real-time high-dynamic imaging method and imaging system
ActiveCN111586310ALower latencyImprove real-time performanceTelevision system detailsColor television detailsComputer graphics (images)Dynamic imaging
The invention provides a real-time high-dynamic imaging method and imaging system, and solves the problems that an existing dynamic range extension method cannot meet the application occasions with high real-time requirements and small time delay, calculation results have large errors, and high-dynamic images are blurred. The method comprises the following steps: 1, enabling an image detector to output high-gain and low-gain image data; 2, performing Gray code-binary code conversion on the high-gain image data and the low-gain image data; 3, obtaining weights of the high-gain image and the low-gain image; 4, fusing the high dynamic range images; 5, performing high dynamic range image mapping; 6, storing the mapped high dynamic range image data in a cache unit; 7, reading cache unit data, and packaging and encoding the mapped high dynamic range image data; and 8, sending the packaged and encoded image data to an output unit for outputting.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Audio processing device and audio processing method for multimedia device
The invention is suitable for the technical field of audio processing, and provides an audio processing device and an audio processing method for a multimedia device. The audio processing device comprises an audio signal input module, an amplification control module and an output module, wherein the audio signal input module is used for processing received audio signals; the amplification controlmodule is used for amplifying the audio signals, an amplification coefficient x is adopted to amplify the audio signals representing live broadcast sound, and an amplification coefficient y is adopted to amplify the audio signals representing background sound, wherein the amplification coefficient x is smaller than the amplification coefficient y; and the output module is used for receiving the audio signals output by the amplification control module and converting the audio signals into sound to be output. The technical scheme provided by the invention enables the live broadcast sound in theaudio signals to obtain a smaller amplification coefficient and enables the background sound to obtain a bigger amplification coefficient, thereby lowering the live broadcast sound and raising the background sound to better satisfy the requirements of users.
Owner:SHENZHEN TCL NEW-TECH CO LTD
Mechanical opening parallel mechanism with sector gate for quantitative loading of skip
Owner:CHINA UNIV OF MINING & TECH
Rocking pneumatic impact machine
The invention discloses a rocking pneumatic impact machine, and belongs to the coal washing and dressing industry. The rocking pneumatic impact machine is used with an arc-shaped classifying screen and comprises an electric control portion, an actuation cylinder, a rocker arm and the like. The rocker arm is a self-balanced rocker arm with symmetric equal armed levers and comprises impact head assemblies, impact rods and a rocker arm body, the middle of the rocker arm body is connected with a base by a hinge pin, two ends of the rocker arm body are respectively connected with the impact rods and the impact head assemblies, the impact head assemblies and the impact rods are symmetrically arranged, and the weight of the rocker arm body is in a self-balanced state around the hinge pin; the electric control portion is connected with the cylinder, and the cylinder is connected with the rocker arm body. The rocking pneumatic impact machine has the advantages that the rocker arm is of a balance scale structure, the stroke of the cylinder is enlarged, the impact speed is increased, the dead weight of the rocker arm is in the self-balanced state, and the rocking pneumatic impact machine can swing flexibly and is low in resistance; a cylinder driving portion is in a design of a surpassing structure with free stroke, so that a quick rebounding effect can be realized after impact actions are completed, elastic impact actions can be implemented, and the impact efficiency can be improved; the rocking pneumatic impact machine can be repositioned flexibly and conveniently owing to hoop locking structures of the impact head assemblies, so that multiple points can be impacted precisely.
Owner:TANGSHAN SENPU MINING EQUIP CO LTD
Seat waist synchronous linkage device for seat and seat
InactiveCN111513499AIncrease the itineraryTo achieve the purpose of supporting the waistSofasBedsRelative displacementControl theory
The invention discloses a seat waist synchronous linkage device for a seat and the seat. The seat waist synchronous linkage device comprises a base, a seat frame arranged above the base. A front connecting rod, a rear connecting rod, the base and the seat frame form a four-connecting-rod mechanism, and the seat frame can move relative to the base under the supporting and guiding effects of the front connecting rod and the rear connecting rod and perform state conversion between a no-load position and a sitting position. The device also comprises a waist support connected with the seat frame orthe base in a sliding mode, wherein the waist support is provided with an initial position and a waist jacking position; and a sliding guide mechanism which drives the waist support to slide along one of the seat frame or the base, and correspondingly, relative displacement is generated between the waist support and one of the seat frame or the base. The stroke of the waist support relative to the base in the horizontal direction is larger than that of the seat frame relative to the base, the stroke of the waist support is larger, so that the waist of a human body can be quickly jacked when the human body sits, and the purpose of supporting the waist is achieved.
Owner:ANJI YONGYI SHANGPIN FURNITURE CO LTD
Tower section of packed tower for chemical synthesis and rectification
InactiveCN101732882AImprove the simulation effectZoom inChemical/physical/physico-chemical processesFractional distillationChemical synthesisContinuous reactor
The invention discloses a tower section of a packed tower for chemical synthesis and rectification. The tower section comprises a tower body, wherein the top end of the tower body is provided with a steam escape port and a steam rising port; a rising steam distributor for uniformly distributing rising steam is arranged in the tower body; the upper part of one side of the tower body is provided with an overflow inlet pipe; the lower part of the overflow inlet pipe is a U-shaped liquid end socket positioned in the tower body; and the lower part of the other side of the tower body is provided with an overflow outlet pipe. The tower section can truly simulate energy and mass transferring processes performed between a continuous reactor and a tower plate of a rectification tower, realizes simulation and knowledge of a sub-section (plate) in a chemical reaction or rectification process in a tower apparatus and obtains more suitable and more effective simulation results than a chromatographic column or a spiniform distillation column when applied to the design and amplification of an industrial device.
Owner:HUNAN UNIV
On-board head-up display system and vehicle
InactiveCN105785568AImage quality is stableRich use functionOptical viewingOptical elementsOptical pathHead-up display
In order to solve the problems of the prior art such as the small sizes of the images projected by the conventional on-board head-up display systems and the limited information displayed by the projected images, the invention provides an on-board head-up display system comprising a display screen assembly and a three-reflection type optical assembly. The three-reflection type optical assembly comprises a zoom lens assembly, an image quality compensation lens assembly, and a front windshield compensation lens assembly, which are sequentially arranged on an optical path. The zoom lens assembly comprises a zoom lens body and a zoom lens focusing assembly. The image quality compensation assembly comprises an image compensation lens body and an image compensation lens focusing assembly. The on-board head-up display system is advantageous in that the continuous zooming can be realized, and the projected image can be magnified by a plurality of times even dozens of times, and the position of the image surface can be remained; the image surface quality is stable, and the image surface cannot be fuzzy or deformed because of the magnification; the abundant information can be provided for the driver in the limited space, and the technical guarantee can be provided for the enriching of the use functions of the on-board head-up display system.
Owner:BYD CO LTD
Transmission double station punching machine
The invention discloses a transmission type double-station punching machine. The transmission type double-station punching machine comprises a machine tool and at least one punching station. The transmission type double-station punching machine is characterized in that the machine tool is provided with a power input element and a driving device for driving the power input element to rotate, the two ends of the power input element are respectively provided with a lead screw, the axes of the two lead screws are located on the same straight line, the thread screwing directions of the two lead screws are opposite, and the guiding strokes of the two lead screws are the same; each lead screw is in threaded connection with a nut, and each nut is fixedly provided with a nut hinged support; each punching station is provided with a plunger chip sliding block, the two plunger chip sliding blocks are symmetrically arranged with the axes of the lead screws as the symmetric axis, and each plunger chip sliding block is provided with two toggle rods in a hinged mode, wherein the other ends of two the toggle rods are hinged to the hinged support sliding bases respectively. According to the transmission type double-station punching machine, the mode of synchronous punching of the two stations is adopted, production efficiency is greatly improved, the gravity center is low, and stability is good.
Owner:SUZHOU POLYTECHNIC INST OF AGRI
Electronic pen
PendingCN110109561AHigh sensitivityZoom inInput/output processes for data processingEngineeringPiston
The invention provides an electronic pen which comprises a pen point and a nib, the pen point is arranged at the front end of a pen container, and a piston part, an elastic part and a pressure sensorare arranged in the pen container. The top of the pen point is fixedly connected with the bottom of the piston part, the outer wall of the piston part is fixedly connected with the inner wall of the pen container, and the pressure sensor is arranged above the piston part; the elastic component is connected between a pressure collecting point of the pressure sensor and the top of the piston part, and the pen point can change the contraction or elongation of the elastic component through the piston part under the action of the external forces or the own gravity of the pen point. The electronic pen of the invention is suitable for amplifying the stroke of the pressure sensor in the electronic pen.
Owner:北京科加触控技术有限公司
Optical fiber isolator
ActiveCN113783091AReduce lossReduce in quantityActive medium shape and constructionEngineeringSignal light
The invention relates to an optical fiber isolator, which comprises an amplification module, a pumping coupling module and an isolation module, wherein the amplification module comprises a gain optical fiber and a first collimator, the pumping coupling module comprises a first passive optical fiber and a second collimator, and the isolation module comprises a first polarization splitting prism, a Faraday rotator, a 1 / 2 slide, a second polarization splitting prism, a third collimator and a second passive optical fiber. According to the invention, signal light passes through the gain optical fiber and is amplified under pumping excitation, and the amplified light passes through the isolation module; the optical fiber isolator integrates pumping reverse coupling, amplification and isolation functions, the use of passive optical fibers of an optical fiber beam combiner is reduced, welding points are reduced, the loss is small, and the integration level and the stability of the system are improved; and the length of a pulse laser transmission optical fiber is reduced, the nonlinear effect is reduced, and the amplification characteristic and the amplification structure of the pulse optical fiber laser are optimized.
Owner:GAUSS LASERS TECH (SHANGHAI) CO LTD
Seat waist synchronous linkage device and seat
InactiveCN111513498ATo achieve the purpose of supporting the waistZoom inSofasBedsRelative displacementControl theory
The invention discloses a seat waist synchronous linkage device and a seat. The seat waist synchronous linkage device comprises a base; a seat frame arranged above the base; a seat frame movement guide mechanism which comprises a guide rod and a sliding groove guide mechanism, wherein the guide rod is arranged at one end of the front end or the rear end of the seat frame, and the sliding groove guide mechanism is arranged at the other end of the front end or the rear end of the seat frame; the seat frame can move relative to the base under the supporting and guiding effects of the seat frame movement guiding mechanism. The device also comprises a waist support connected with one of the seat frame or the base in a sliding mode, wherein the waist support is provided with an initial positionand a waist jacking position; a sliding guide mechanism which drives the waist support to slide along one of the seat frame or the base. Correspondingly, relative displacement is generated between thewaist support and one of the seat frame or the base; the stroke of the waist support relative to the base in the horizontal direction is larger than that of the seat frame relative to the base, thatis, the stroke of the waist support is larger, so that the waist of a human body can be jacked quickly when the human body sits, and the purpose of supporting the waist is achieved.
Owner:ANJI YONGYI SHANGPIN FURNITURE CO LTD
Lateral current collector
InactiveCN1321015CZoom inAchieving Parallel ScalingPower current collectorsEngineeringTorsion spring
A lateral current collector is composed of a current collecting slide block, a swing mechanism, and a base plate. Said swing mechanism connected between said slide block and base plate consists of a 4-connecting-rod unit comprising primary swinging bar, secondary swinging bar, swinging fork bar and the supporter of primary swinging bar, a final swinging bar, and a tensional spring connected between primary swinging bar and base plate.
Owner:NAT UNIV OF DEFENSE TECH
On-orbit maintenance quick-connection system based on double-conjugate cam assist principle
InactiveCN107346846BEnhanced capabilities for on-orbit maintenanceGet rid of dependenceCoupling device engaging/disengagingCoupling device detailsAviationEngineering
An on-orbit maintenance quick connection system based on a bi-conjugate cam assistance principle relates to the field of on-orbit maintenance in aviation and spaceflight. The problem on how to complete an on-orbit maintenance process of an on-orbit replaceable unit with large plugging and unplugging force quickly and assist astronauts is solved. The on-orbit maintenance quick connection system includes a quick jack mounting plate on which a quick jack and positioning guide pins are fixed, an on-orbit replaceable unit, a quick socket mounting plate which is fixed to the lower end of the on-orbit replaceable unit, two assistance support lugs which are respectively fixed to the left and right sides of the lower end of the on-orbit replaceable unit and are symmetric about the center of mass of the on-orbit replaceable unit, and two assistance mechanisms which are respectively fixed to the two sides of the quick jack mounting plate. The two assistance mechanisms have a one-to-one correspondence relationship with the two assistance support lugs. When the two assistance mechanisms are shifted, the two assistance support lugs are driven to make the quick jack plugged into a quick socket. The two assistance mechanisms rotate 90 degrees simultaneously to complete plugging and unplugging of the on-orbit replaceable unit. The on-orbit maintenance quick connection system has the advantages of simple structure, low weight, small size and easy installation.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI +1
Synthesis method of peptide nucleic acid guanine monomer
PendingCN114685606AThe synthetic process route is simpleReduce stepsPeptidesEthyl groupSuccinchlorimide
The invention provides a synthesis method of a peptide nucleic acid guanine monomer. The preparation method comprises the following steps: 1) dissolving 2-N-(diphenylmethoxycarbonyl) guine-9-acetic acid in N, N-dimethylformamide, adding N-hydroxysuccinimide while stirring, adding 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride at 0 DEG C, stirring and reacting at room temperature, and displaying that the reaction is finished through TLC (Thin Layer Chromatography); and 2) dissolving N-(2-Fmoc-aminoethyl) glycine in N, N-dimethylformamide, adding the active ester obtained in the step 1), dropwise adding N, N-diisopropylethylamine at 0 DEG C, and reacting at room temperature overnight to obtain the required product peptide nucleic acid guanine monomer. The reaction route is simplified, and the reaction condition is mild; the use of acyl chloride is avoided, and anhydrous and anaerobic operation is not needed; the used solvent can be recycled, and is green and environment-friendly; and a basis is provided for industrialization of the peptide nucleic acid guanine monomer.
Owner:苏州怡彼得生物技术有限公司
Tower section of packed tower for chemical synthesis and rectification
InactiveCN101732882BImprove the simulation effectZoom inChemical/physical/physico-chemical processesFractional distillationChemical synthesisContinuous reactor
The invention discloses a tower section of a packed tower for chemical synthesis and rectification. The tower section comprises a tower body, wherein the top end of the tower body is provided with a steam escape port and a steam rising port; a rising steam distributor for uniformly distributing rising steam is arranged in the tower body; the upper part of one side of the tower body is provided with an overflow inlet pipe; the lower part of the overflow inlet pipe is a U-shaped liquid end socket positioned in the tower body; and the lower part of the other side of the tower body is provided with an overflow outlet pipe. The tower section can truly simulate energy and mass transferring processes performed between a continuous reactor and a tower plate of a rectification tower, realizes simulation and knowledge of a sub-section (plate) in a chemical reaction or rectification process in a tower apparatus and obtains more suitable and more effective simulation results than a chromatographic column or a spiniform distillation column when applied to the design and amplification of an industrial device.
Owner:HUNAN UNIV
Medical magnifying film-viewing device
A medical magnifying film-viewing device comprises a frame [1]. A transparent bottom plate [2] is arranged on the frame. A lighting source [3] is arranged inside the frame. A magnifying glass device [4] is arranged on the upper end of the frame. When film viewing is needed, the magnifying glass device [4] is rotated to a corresponding part, and a medical film is magnified for diagnosis and treatment. The magnifying glass device [4] can be freely adjusted in a multidirectional manner through a universal device. A video module [5] is arranged on the magnifying glass device [4], and a relevant film can be locally guided to a relevant computer through the video module for further remote diagnosis and treatment. The magnifying glass device [4] can be received to the side of the frame. With the medical magnifying film-viewing device, the special requirement of doctors for details in film viewing can be met, any part of a film can be magnified conveniently, and diagnosis and treatment is more accurate and targeted.
Owner:俞泓
Method for detecting aflatoxin b1 based on visual bpe-ecl technology
ActiveCN110530853BEasy constructionAvoid direct contactChemiluminescene/bioluminescenceMaterial electrochemical variablesChemical reactionSignal on
The invention discloses a method for detecting aflatoxin B1 based on visual BPE‑ECL technology, which comprises the following steps: 1) preparation of a screen-printed bipolar electrode; 2) construction of a functional sensing interface; 3) combining unknown concentrations of AFB1 and After mixing a fixed concentration of HRP-AFB1, it interacts with the AFB1 monoclonal antibody on the functional sensing interface; 4) Using the working principle of bipolar electrodes, the electrochemiluminescence signal on the signal acquisition interface is detected. The invention uses BPE to convert the electrochemical signal of the chemical reaction into a sensitively detectable electrochemiluminescence signal, which solves the problem that the electrochemical cannot distinguish the Faraday current and the charging current; uses the BPE to perform a physical connection between the functional sensing interface and the signal acquisition interface. Isolation avoids direct contact between photoactive molecules and complex reaction systems, effectively suppresses false positive phenomena, expands the scope of analysis and detection, and simplifies detection methods. The present invention has the advantages of simplicity, sensitivity and good specificity.
Owner:NANJING TECH UNIV
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