176results about How to "Enhanced coupling" patented technology

The invention discloses a preparation method of a magic angle nano-cavity and a topological body cavity based on a quantum dot single photon source, and the method comprises the steps: carrying out the preprocessing of a substrate, and enabling the substrate to comprise a quantum dot layer, a substrate layer, and a sacrificial layer located between the quantum dot layer and the substrate layer; treating the pretreated substrate by adopting oxygen plasma; photoresist is spin-coated on the surface of the quantum dot layer of the substrate, exposure and development are carried out, and a pattern is formed on the surface of the photoresist; transferring the pattern on the photoresist to the quantum dot layer through etching; and removing the sacrificial layer by wet etching to prepare two photonic crystal cavities, namely a magic angle nano cavity and a topological body cavity. Through fine electron beam exposure dose control, precise inductively coupled plasma gas component and etching rate control and appropriate corrosive liquid concentration and time control, a high-stability and high-repeatability photonic crystal suspension cavity structure, namely a magic angle nano cavity and a topological body cavity, with a line width of 30-50 nm is realized.

The invention provides a rapid modeling simulation method based on a time domain hybrid finite element method and a circuit simulator SPICE. The rapid modeling simulation method is used for analyzing transient linear / nonlinear and passive / active complex microwave network circuit models on a PCB. The method comprises the following steps of: constructing an electromagnetic module of a microwave network circuit in computer aided design software, writing an SPICE netlist of the circuit module, and realizing interaction between the electromagnetic module and the circuit module through voltage and current defined on a lumped port, so as to obtain a complete circuit structure; in the electromagnetic part, a modal order reduction technology based on a second-order Arnoldi algorithm is adopted to reduce the order of a wave equation to a low-dimensional Krylov subspace for solving, and the data interaction process of the electromagnetic part and the circuit part in each time step length is obviously accelerated; in the time domain hybrid finite element method, the tree-cotree technology is adopted to overcome the problem of low-frequency breakdown or high-density breakdown occurring in the time domain finite element method; a circuit simulator SPICE enables a joint simulation algorithm to be powerful, and a complex multi-port circuit can be simulated.

The invention discloses a photoelectric wafer defect detection method, and belongs to the technical field of semiconductors. The detection method comprises the steps that the surface of a photoelectric wafer is covered with a quantum dot precursor solution, annealing is carried out, after a quantum dot film is formed, irradiation is carried out under ultraviolet light, a displayed fluorescence signal can mark defects on the surface of the photoelectric wafer, and the purpose of detecting the defects of the photoelectric wafer is achieved. The quantum dots used in the invention have excellent fluorescence efficiency and stability, and can provide a high-contrast marking effect in an SEM image. Therefore, the detection of micron-scale and nano-scale defects is more accurate, and the details are clearer. A traditional fluorescence labeling solution is limited in infiltration capacity in nanoscale defects and can only cover the surface. The quantum dots can penetrate into the defect to form a mark with the depth ratio as high as 1: 3. The depth marking capability is helpful for comprehensively knowing the internal structure of the defect and the defect extension condition. In addition, the quantum dots have excellent adaptability and multifunctionality, and show good stability and coupling effect under different types of wafer conditions.

The utility model relates to the technical field of signal transmission cables, and discloses a novel insulation co-extrusion double-coaxial high-speed data transmission cable, which comprises conductors, an insulation layer, a shielding layer and a sheath layer, and is characterized in that the two conductors are parallel to each other and are arranged at an interval; the insulating layer is uniformly and tightly wrapped on the outer sides of the two conductors, is a polytetrafluoroethylene insulating layer, and is simultaneously extruded at one time, so that the insulating layer is pushed and wrapped on the outer sides of the two conductors; the shielding layer comprises a first shielding layer and a second shielding layer, the first shielding layer wraps the outer ring of the insulating layer, and the second shielding layer wraps the outer ring of the first shielding layer; the sheath layer wraps the outer ring of the second shielding layer and is used for fixing and shielding protection. The two conductors are stranded bare copper, tinned copper wires or silver-plated copper wires. The cable has more reliable mechanical and physical stability, is more beneficial to coupling of an electromagnetic field, can reduce capacitance impedance, has lower time delay difference, and improves signal transmission speed and quality.

The invention discloses a two-dimensional 90-degree coupler with a filtering characteristic, and relates to the technical field of antennas. The two-dimensional 90-degree coupler with the filtering characteristic comprises a first one-dimensional 90-degree coupler, a second one-dimensional 90-degree coupler, a third one-dimensional 90-degree coupler, a fourth one-dimensional 90-degree coupler, a first input port group, a first output port group, a second input port group, a second output port group and a filtering assembly. The first input port group, the first one-dimensional 90-degree coupler, the third one-dimensional 90-degree coupler and the first output port group are coupled in sequence; the second input port group, the second one-dimensional 90-degree coupler, the fourth one-dimensional 90-degree coupler and the second output port group are coupled in sequence; the filtering assembly comprises a filtering cross device; and the filtering cross device is respectively coupled with the first one-dimensional 90-degree coupler, the second one-dimensional 90-degree coupler, the third one-dimensional 90-degree coupler and the fourth one-dimensional 90-degree coupler. According to the invention, the problems of complex packaging and difficult integration can be solved.

The invention discloses a laser radar zero-blind-area detection system and method based on automatic switching of far and near fields, and solves the problem of low signal receiving efficiency of detection blind areas and far and near fields 100 meters below the ground in the prior art. According to the system, laser emission beams are respectively transmitted along coaxial and off-axis paths through a light splitting module, an aperture diaphragm automatic adjusting device is introduced, a receiving aperture is automatically switched according to far and near field imaging characteristics, and efficient coupling of signals and optimized receiving under a weak light condition are ensured. The system combines far and near field signals to the same optical path by using an automatic beam combination switching device, realizes multichannel signal detection, and supports multifunctional atmospheric parameter monitoring such as aerosol, Raman scattering and the like. The control and data processing system automatically manages signal switching and data processing, operation is simplified, and data reliability is improved. The technology is obviously superior to the prior art in the aspects of detection precision, system integration degree and multifunctional detection capability, and system complexity and cost are reduced.

The invention relates to a vibration excitation method and system based on impedance identification, and the method comprises the steps: carrying out the frequency domain conversion of force-speed data obtained by a displacement closed-loop system, and obtaining the mechanical impedance of a drive point; performing flexibility compensation on the mechanical impedance of the driving point to obtain the real impedance of the structure end; extracting an imaginary part and constructing a matching residual error by using the real impedance of the structure end, correcting the excitation frequency of the current vibration exciter through gradient frequency, and iteratively determining the optimal excitation frequency of the vibration exciter meeting a convergence condition; mechanical active power generated by the vibration exciter is calculated under the optimal excitation frequency, dual-target optimization is carried out on the amplitude of the vibration exciter, and the optimal amplitude with the maximum mechanical active power and the minimum equivalent output of the actuator is obtained; based on the real impedance of the structure end, the matching criterion and the optimal amplitude, variable parameters are introduced to construct a source-side impedance model, a source-side impedance matching frequency domain interval is expanded through slow time mark setting parameters, and mechanical active power generated by a vibration exciter is coupled to a tested structure.

The invention provides a transcranial light adjusting method and system based on a laser light source and transmitting energy through an optical fiber bundle, relates to the technical field of physiotherapy, and mainly comprises a power supply, a controller, a laser, an optical fiber coupler, the optical fiber bundle, a lens group and the like. The optical fiber coupler couples laser output by the laser into the incident end of the optical fiber bundle; the emergent end of the optical fiber bundle is set as one or more sub optical fiber bundles, and the tail end of each sub optical fiber bundle is selectively butted with one lens group; when the emergent end of the optical fiber bundle is provided with a plurality of sub optical fiber bundles, the plurality of sub optical fiber bundles are respectively and correspondingly arranged at the back of the prefrontal lobe, the belly of the prefrontal lobe, the temporal lobe, the apical lobe and other physiotherapy positions which are effective for light; and when the tail ends of the plurality of sub-optical fiber bundles are not butted with the lens group, the emergent end of each sub-optical fiber bundle is set as an optical fiber array, and the optical fiber array is embedded into the light supply effective head position and is in contact with the scalp, so that the absorption rate and the reflectivity of the hair to near-infrared light are reduced.

The invention discloses a biphenyl derivative photoinitiator, a preparation method of the biphenyl derivative photoinitiator, a photocuring thin film material and a preparation method and application of the photocuring thin film material. The biphenyl derivative has a structural formula shown as a formula (I), R1 is an electron donor group, and R2 is an electron acceptor group. According to the invention, biphenyl is taken as a main body structure, different donor groups R1 and acceptor groups R2 are connected, the photoinitiator is synthesized through Suzuki reaction, and a polymeric monomer material is N, N-dimethylacrylamide (DMA). The photocuring material with long afterglow luminescence can be obtained through an ultraviolet irradiation method, and under the irradiation of a 365nm ultraviolet lamp, an initiator absorbs photons to generate active species to attack double bonds in a monomer to initiate a polymerization reaction. The light-cured film can generate long afterglow luminescence as long as several seconds after being illuminated, and can be applied to the aspects of counterfeiting prevention, 3D printing, photoetching and the like.

The invention relates to the technical field of rubber materials, and discloses a flame-retardant silicon carbide ceramic rubber material and a preparation method thereof. The flame-retardant silicon carbide ceramic rubber material is prepared by taking methyl vinyl silicone rubber as a main base material and adding MIL-100 (Fe, Co) coated CSiCNS, modified mica powder and other auxiliaries, not only has excellent high temperature resistance and corrosion resistance of silicone rubber, but also has excellent wear resistance of a ceramic material; wherein the MIL-100 (Fe, Co)-coated CSiCNS is prepared by taking a silicon carbide nanosheet as a substrate for modification, and is used as an inorganic flame-retardant component in the substrate, so that the flame-retardant property of the rubber material is improved; the modified mica powder serving as a ceramic forming filler not only endows the matrix with a certain flame retardant property, but also can be subjected to melting and eutectic reaction with the silicone rubber at high temperature to form a hard ceramic body, so that the flame retardant property of the matrix is further improved.

Various exemplary embodiments relate to an acoustic resonator. The acoustic wave resonator may include a substrate, a piezoelectric film attached to the substrate, and a plurality of electrodes. The piezoelectric film is provided with a plurality of grooves, and two adjacent grooves define a ridge between them. And each electrode is arranged in the corresponding groove. Each electrode includes two side portions, each side portion at least partially covering a respective sidewall of the recess.

The invention relates to the technical field of welding, and discloses an arc-guided laser hybrid welding device which comprises a mounting frame, and a laser welding head, a laser range finder, a welding gun, a shielding gas blowing part, a welding seam tracker, an air knife and a dust hood which are detachably mounted on the mounting frame, the laser range finder is used for measuring the distance between the laser welding head and the surface of the to-be-welded workpiece; in the welding direction, the welding gun and the shielding gas blowing part are located on the front side and the rear side of the laser welding head respectively, the welding seam tracking sensor is located on the front side of the welding gun, the positions of the welding gun and the shielding gas blowing part are adjustable in the X-axis direction, the Y-axis direction and the Z-axis direction, and the positions of the welding seam tracking sensor are adjustable in the Y-axis direction and the Z-axis direction. In the Y-axis direction, the air knife and the dust collection cover are located on the two sides of the laser welding head correspondingly, the position of the air knife in the Z-axis direction and the angle of the air knife around the X-axis direction are adjustable, and the position of the dust collection cover in the Z-axis direction and the angle of the dust collection cover around the X-axis direction are adjustable. The integration level and the space utilization rate are high, and the use convenience is good.

The utility model relates to the technical field of optical fibers, and discloses an optical fiber clamping and aligning device which comprises a workbench, a butt joint table is fixedly connected to the outer wall of the workbench, two outer grooves are formed in the outer walls, located on the two sides of the butt joint table, of the workbench, two connecting blocks are slidably connected to the outer walls of the two outer grooves, and driving frames are fixedly connected to the outer walls of the two connecting blocks. The outer wall of the top of the driving frame is in threaded connection with a threaded rod, the outer wall of the bottom of the threaded rod is rotationally connected with an arc-shaped clamping block, the outer wall of the driving frame is provided with an arc-shaped groove matched with the arc-shaped clamping block, the outer wall of the butt joint table is fixedly connected with a plurality of alignment blocks, and the outer wall, located among the alignment blocks, of the butt joint table is fixedly connected with a coupling plate. According to the optical fiber coupling device, the optical fibers can be aligned and positioned in the optical fiber coupling process, so that the optical fibers can be conveniently coupled, errors occurring in the optical fiber coupling process are reduced, and the practicability of the device is improved.

The invention discloses an optical lens, a camera module and a terminal device, the optical lens comprises seven lenses with refractive power, the first lens has negative refractive power, and the object side surface and the image side surface of the first lens are respectively a convex surface and a concave surface near an optical axis; the second lens element with negative refractive power has a concave object-side surface and a convex image-side surface in a paraxial region, respectively. The third lens element with positive refractive power has a convex object-side surface and a concave image-side surface in paraxial regions, respectively. The fourth lens element with positive refractive power has an object-side surface and an image-side surface being convex in a paraxial region. The fifth lens element with positive refractive power has an object-side surface and an image-side surface being convex in a paraxial region. The sixth lens element with negative refractive power has an object-side surface and an image-side surface being concave and convex in a paraxial region thereof. The seventh lens element with positive refractive power has an object-side surface and an image-side surface being convex and concave in a paraxial region thereof. The optical lens satisfies the following relational expressions: 150 deg < = FOV < = 160 deg and 1.4 < = FNO < = 1.55.

The invention belongs to the technical field of preparation of green hydrogen by electrolyzing water, and discloses a molybdenum disulfide loaded platinum nanoparticle composite electrocatalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving ammonium molybdate, thiourea and polyvinylpyrrolidone in deionized water, and carrying out heat treatment to obtain MoS2; and adding a Na2 [PtCl6]. 6H2O aqueous solution into the dispersion liquid of MoS2, and carrying out annealing treatment to obtain the molybdenum disulfide loaded Pt particle composite electrocatalyst. Wherein the molybdenum disulfide nanosheets are of a vertical arrangement structure and have abundant edge sulfur sites, and the high-activity edge sulfur sites and Pt particles have a synergistic effect, so that the reaction potential barrier of water molecule dissociation is effectively reduced. Meanwhile, the generation rate of hydrogen is increased through the active sulfur sites. The overpotential of the material is only 35 mV under the current density of 10 mA cm <-2 >, and the material can stably operate for more than 110 h under the current density of 20 mA cm <-2 >. By combining metal active sites and high-activity non-metal sites, dissociation of water molecules and generation of hydrogen are promoted, and the hydrogen evolution reaction performance in an alkaline medium is remarkably improved.

The utility model discloses an optical fiber coupling device, and relates to the technical field of optical fiber coupling, the optical fiber coupling device comprises a pedestal, a material storage assembly, a coupling structure and a carrying assembly, and a coupling station and a material storage station are arranged along the length direction of the pedestal; the material storage assembly is arranged at the material storage station and comprises a plurality of coupling material trays and a stacking piece, the coupling material trays are used for fixing the optical fibers, the mode stripper and the collimator, and the stacking piece is used for automatically stacking the coupling material trays; the coupling structure is arranged at the coupling station and comprises a positioning tool piece, a bare fiber adapter and an adjusting piece, the positioning tool piece is used for fixing the coupling tray, and the bare fiber adapter is used for fixing one end of the optical fiber so as to output a light source to the optical fiber and the mode stripper. According to the technical scheme of the utility model, through the arrangement of related structures, the adjustment of the coupling position of each material in the optical fiber coupling process can be realized, the automation degree is high, and the inspection efficiency can be effectively improved while the coupling precision is fully ensured.

The invention discloses a low-profile ultra-wideband antenna and a working method thereof, and the antenna comprises a radiator which carries out the effective radiation of the antenna at a first frequency band; the antenna feed body and the radiating body are partially projected and overlapped along the direction vertical to the ground plane, and the projected and overlapped parts are mutually coupled to form a coupled feed structure; the antenna feed body is used for transmitting energy to the radiator and serves as the radiator to provide impedance matching in a second frequency band; the coupled feeding structure is used for carrying out coupled feeding, realizing impedance matching of the first frequency band and expanding the impedance bandwidth of the first frequency band; the branch antenna is used for providing radiation in a third frequency band and assisting the radiation of the parasitic antenna in a fourth frequency band; the parasitic antenna provides radiation in a fifth frequency band. The antenna is used for realizing ultra-wide frequency band coverage in a limited space, and good radiation performance and impedance matching effect can be provided in each frequency band.

The invention relates to the technical field of nano materials and biomedical engineering, and discloses a dye-sensitized rare earth up-conversion luminescent nano material as well as a preparation method and application thereof. The dye-sensitized rare earth up-conversion luminescent nano-material comprises a rare earth doped up-conversion nano-particle core, an unsaturated fatty acid salt self-assembled shell layer and a near-infrared dye modified on the surface of the rare earth doped up-conversion nano-particle. The unsaturated fatty acid salt coating layer endows the material with excellent water dispersibility through a hydrophilic group; a hydrophobic chain segment and an unsaturated double bond can effectively block water and oxygen permeation and quench singlet oxygen, so that the photobleaching half-life period of the material is increased by 86.7 times or more compared with that of a conventional coating material, and the light stability is excellent; the material successfully realizes efficient up-conversion luminescence under excitation of a low-power near-infrared light emitting diode (NIR LED, the power density of which can be as low as 100mW / cm < 2 >), and thoroughly gets rid of dependence on a high-cost and high-risk laser.

The invention discloses a compact high-power semiconductor pump solid laser, which comprises a stimulated radiation mechanism, a coupling mechanism arranged at one end of the stimulated radiation mechanism and an adjusting mechanism arranged on the circumference of the stimulated radiation mechanism, and is characterized in that the stimulated radiation mechanism comprises a radiation cavity and a lens group arranged on the inner side of the radiation cavity; the gain medium is arranged between the lens groups; the coupling mechanism is arranged at one end of the lens group; a flow channel is formed in the inner side of the circumferential cavity wall of the radiation cavity; the coupling mechanism comprises a pump light source and a focus lens group arranged at one end of the pump light source; the focusing lens group is in sliding connection with the radiation cavity, and an adjusting system is arranged in the micro-fluidic chip; therefore, the situation that under high-power pumping, a large amount of heat is generated after the laser crystal absorbs the pumping light, the temperature of the crystal rises, and then the output performance and stability of the laser are affected is greatly reduced.

The embodiment of the invention discloses a display module, a preparation method and electronic equipment. The display module comprises a substrate and a plurality of light-emitting sub-pixels arranged on the substrate. Each light-emitting sub-pixel comprises a first electrode layer, an insulating mask plate, a light-emitting layer and a second electrode layer, the first electrode layer, the insulating mask plate and the second electrode layer are sequentially stacked in the direction away from the substrate; the light-emitting layer comprises light-emitting materials, the insulating mask plate comprises a plurality of pixelated through holes, and the light-emitting materials are respectively arranged in the plurality of pixelated through holes; the plurality of pixelated through holes are in one-to-one correspondence with the plurality of light-emitting sub-pixels; the aperture of the plurality of pixelated through holes is 10 nm to 5 [mu] m. Therefore, the sizes of the pixelated through holes are micron-scale and submicron-scale, so that the nano-scale to micron-scale pixelated display is realized, and the pixel density required by near-eye display equipment is realized. And the insulating mask plate separates the luminescent material, so that the safety and the working efficiency of the display module are improved.

The application provides a node device anti-theft device for hard ground coupling, which comprises a connecting main plate, a first side of the connecting main plate is used for being fixed to a hard ground, and a coupling interface is arranged on a second side of the connecting main plate, which is opposite to the first side; a node device is fixed on the connecting main plate through the coupling interface; wherein the first side of the connecting main plate is matched with the ground shape of the hard ground to realize the fixing and coupling between the node device and the hard ground. Through the device, the eSeis node device can be stably and effectively coupled with the hard ground in a complex environment, and the loss of the device can be effectively prevented.

The present invention relates to an electrode connection element, a light emitting device including the electrode connection element, and a method for manufacturing the light emitting device, and more specifically, to an electrode connection element electrically connecting an electrode terminal and an external driving circuit, a light emitting device including the electrode connection element, and a method for manufacturing the light emitting device. The electrode connection element according to an exemplary embodiment includes: an upper connection member contacting an upper surface of an electrode terminal formed on a substrate; a lower connection member configured to support a lower surface of the substrate; and a connection member configured to connect the upper connection member and the lower connection member to each other.

The present invention specifically discloses a sound membrane structure and a loudspeaker. The sound membrane structure of the present invention includes at least two sound membrane parts, at least two first coil bodies and at least two second coil bodies. The sound membrane part includes a sound membrane body, a first magnetic circuit and a second magnetic circuit. The sound membrane body includes a first side surface and a second side surface that are arranged oppositely. The first magnetic circuit is fixedly arranged with the first side surface, and the second magnetic circuit is fixedly arranged with the second side surface. Two adjacent sound membrane parts are symmetrically laid flat. The plane of the sound membrane body is perpendicular to the laying direction of the sound membrane part. The sound membrane body is arranged between the first coil body and the second coil body. The first coil body and the second coil body are fixedly arranged. The groove of the first magnetic circuit accommodates the end of the first coil body, and the groove of the second magnetic circuit accommodates the end of the second coil body. The first magnetic circuit can be close to or away from the first coil body, and the second magnetic circuit can be close to or away from the second coil body. The sound membrane structure of the present invention has a high degree of coupling with air, high electroacoustic conversion efficiency and high sound pressure level.

The invention relates to the technical field of multi-source data processing, in particular to a multi-source data coupling system and method, and the method comprises the steps: obtaining original monitoring data of a target region from a plurality of data sources, carrying out the quality evaluation of the data of each data source, and generating a quality score; establishing a data source contribution degree dynamic weight distribution model by combining geological activity stage parameters, calculating a real-time dynamic contribution weight of each data source, and performing weighted fusion on original data; introducing geological priori knowledge to perform adaptive feature screening on the fused data, retaining key features, and performing collaborative analysis on the key features and the geological priori knowledge to obtain a geological state coupling result; and constructing a closed-loop optimization mechanism, calibrating a data quality score by using a coupling result, and updating a weight model for fusion in the next period. The method can adapt to dynamic changes of geological activities, improve reliability of fused data, realize adaptive coupling optimization of multi-source monitoring data, and adapt to complex geological monitoring scenes.

This invention belongs to the field of membrane separation technology, specifically relating to a method for preparing a polytetrafluoroethylene (PTFE) composite membrane. The preparation method includes: (1) dissolving a spinning aid, a barium source, a titanium source, and a manganese source in a composite solvent, and then electrospinning to obtain precursor fibers; subsequently, blending the precursor fibers with a grain refiner, and heat-treating to obtain doped ferroelectric fiber bundles; (2) further polymerizing organic acids, inorganic acids, conductive fillers, and conductive polymers with monomers and oxidants to finally obtain a conductive polyaniline composite; (3) incorporating Mxene and the conductive polyaniline composite into an aqueous PTFE emulsion, and then further incorporating the doped ferroelectric fiber bundles and stirring to obtain a suspension; the suspension is then coated, post-treated, and kept warm to obtain a PTFE composite membrane. This invention improves the long-term fouling resistance of the PTFE membrane by doping the doped ferroelectric fiber bundles, the conductive polyaniline composite, Mxene, and PTFE.

A cladding light filtering structure and manufacturing method of a triple-clad optical fiber, comprising an upper cover and an optical fiber base, wherein the base comprises a front stray light filtering structure, a mode scrambling structure, and a rear stray light filtering structure, wherein the mode scrambling structure has a jump notch and is located in the middle of the optical fiber base, wherein the mode scrambling optical fiber is wound in the wire groove of the mode scrambling structure, wherein one end of the front stray light filtering structure is connected to one end of the mode scrambling optical fiber of the inner circle of the mode scrambling structure and is fixed on the optical fiber base, and the optical fiber of the other end extends out of the front of the optical fiber base, wherein one end of the rear stray light filtering structure is connected to one end of the mode scrambling optical fiber of the outer circle of the mode scrambling structure and is fixed on the optical fiber base, and the optical fiber of the other end extends out of the rear of the optical fiber base, and the upper cover covers and is fixed on the optical fiber base. The present invention has a simple structure and good filtering effect, and can achieve controllable output beam quality while ensuring the mechanical properties of the optical fiber.

The invention relates to a Bayesian-based pseudo-random binary sequence transient electromagnetic data reconstruction method. The method comprises the steps of 1, acquiring transient electromagnetic measured data; step 2, presetting basic parameters and a sampling range of Bayesian sampling; 3, guiding Bayesian sampling through a likelihood function to randomly select periodic data in the transient electromagnetic measured data, and generating alternative data based on the periodic data; step 4, calculating an acceptance proportion of the alternative data, if the acceptance proportion is greater than a preset value, accepting the alternative data, and setting the alternative data as the next sampling initial data; otherwise, rejecting the alternative data, and continuing to carry out the next sampling; 5, repeating the steps 3-4 until convergence, ending sampling, and sorting all alternative data into a data sample set; and step 6, performing reconstruction calculation on the data sample set to obtain reconstructed transient electromagnetic data. According to the method, high-quality transient electromagnetic pseudo-random binary sequence data can be reconstructed from actual observation data.

The invention discloses an all-quartz multi-component Raman signal online detection module based on multi-laser additive and subtractive manufacturing. The all-quartz multi-component Raman signal online detection module comprises a node-free negative curvature hollow-core optical fiber with side micropores, a multimode optical fiber, a single-mode optical fiber plated with a ceramic film, a semicircular micro-channel, a quartz slurry packaging layer and a quartz fixing base, a micro-scale micropore is processed on the side surface of a node-free negative-curvature hollow fiber by utilizing picosecond laser, a multimode fiber, the node-free negative-curvature hollow fiber with the side micropore and a single-mode fiber are welded into a whole, the single-mode fiber is ground into a slice by utilizing an optical fiber grinding technology, and a ceramic membrane is deposited on the end surface of the slice single-mode fiber. Picosecond laser is used for scanning the quartz fixing base layer by layer so as to process a semicircular micro-channel for placing the sensor, and CO2 laser is used for scanning, depositing and curing the quartz slurry packaging layer layer by layer so as to package the sensor. According to the invention, the to-be-detected substance is injected into the all-quartz sensor, so that on-line detection of multi-component Raman signals can be realized in high electromagnetic interference environments such as electric power and the like.

The invention discloses a novel energy wireless transmission device and method based on electric field coupling, and aims to solve the problems that an existing parallel coupling mechanism has relatively serious electric field dissipation and a stacked coupling mechanism is insufficient in power transmission capability. The energy transmitting assembly and the energy receiving assembly are of an oppositely-embedded disc structure, a double-LC type resonance compensation network is adopted, and constant current output irrelevant to a load can be achieved. Compared with a parallel disc coupling mechanism, the electric field dissipation of the system to the external environment can be effectively reduced; compared with a stacked disc coupling mechanism, the power transmission capability of the coupling mechanism can be ensured. The power supply slip ring adopting the electric field coupling type wireless power transmission technology is high in electromagnetic interference resistance, small in size, light in weight and low in cost, the problems of abrasion and abrasive dust in power supply of a rotary slip ring are fundamentally solved, and meanwhile the cost and the weight of a power supply device are reduced. The invention relates to the field of wireless power transmission.

The present invention discloses a method and system for super-resolution reconstruction and recognition of faces used in video surveillance, and belongs to the field of deep learning super-resolution reconstruction of faces. The method of the present invention first obtains the original video stream collected in real time and preprocesses it, then locates the face position of the preprocessed video stream in the target area, then inputs the low-resolution face image into the trained face super-resolution reconstruction network for reconstruction, outputs the reconstructed super-resolution face image, and finally performs face recognition on the reconstructed super-resolution face image, outputs the face recognition result and visualizes it, and stores the recognized personnel for later auditing. The present invention aims to efficiently and accurately restore high-quality face images from low-quality face images through the powerful learning ability of the face super-resolution reconstruction network, thereby providing a clearer and more reliable input for the face recognition system, and improving the overall recognition accuracy and robustness.