21results about How to "Improve the coupling effect" patented technology

The utility model discloses a kind of adaptive control circuit of heating body, including MCU temperature control circuit, temperature control circuit, temperature feedback device, current detection circuit, voltage detection circuit, protection detection circuit and temperature display device.The control circuit can automatically identify the heating core type connected, according to the deviation of set temperature and actual temperature output PWM control signal, drive temperature control circuit to carry out temperature rising or cooling adjustment;Temperature, current, voltage are monitored in real time by a variety of detection circuits, and protection mechanism is started under abnormal state, simultaneously, working state is fed back in real time by display device.The control circuit is strong in adaptability, safe and reliable, and is applicable to a variety of heating application scenarios.

The application discloses an optical fiber sound sensor, which comprises a support, a mandrel installed on the support, and a sound-measuring optical fiber wound on the outer peripheral wall of the mandrel, wherein the outer peripheral wall of the mandrel is provided with a sensitivity-enhancing protrusion protruding towards the radial outside of the mandrel, the maximum distance of the sensitivity-enhancing protrusion to the axis of the mandrel is L1, the minimum radius of the mandrel is L2, and the following condition is met: 0.2mm<=L1-L2<=5mm. The optical fiber sound sensor can effectively enhance the coupling capacity between sound waves and the sound-measuring optical fiber by arranging the sensitivity-enhancing protrusion on the outer peripheral wall of the mandrel and limiting the difference between the maximum distance of the sensitivity-enhancing protrusion to the axis of the mandrel and the minimum radius of the mandrel, thereby improving the sensitivity of the optical fiber sound sensor in detecting sound wave signals.

The utility model discloses a joint type ultrasonic wave probe device, include: hand held pole, probe, it includes casing, piezoelectric wafer, cable, joint subassembly, it includes a pair of through -hole, its corresponding setting is on the lateral wall of casing, shaft pipe, it is through a pair of through -hole and is set in the casing, filler, it fills around the shaft pipe in the casing, elastic ring, it is the open ring of one end, and the opening of one end of elastic ring's two arms is rotatable and is clamped into two ends of the shaft pipe, the connecting piece is one long strip shape piece body, and one end of connecting piece is connected to the front end of hand held pole, and the other end of connecting piece is connected with the other end of elastic ring and sets up. The utility model provides joint type ultrasonic wave probe device, through hand held pole and sends to the probe of the surface to be detected, through joint subassembly can be adaptive surface to be detected's position and angle, make the detection can be reliably carried out, and then effectively improve the coupling effect of flaw detection contact surface and surface to be detected.

The invention discloses a tunnel full-process mechanical building construction method and system, is used for solving the technical problems related to back break control, primary support flatness, lining compactness and process cooperation efficiency in tunnel construction, and belongs to the technical field of tunnel and underground engineering construction. The method comprises the following steps that firstly, a tunnel is excavated; tunnel excavation is carried out by using a synchronous benching method in tunnel excavation based on large machine operation space optimization; 2, controlling over-break and under-break of the tunnel; intelligent control over back break of the drill jumbo is carried out through multi-mode cooperation; thirdly, tunnel primary supporting is carried out; the sprayed concrete in the primary support of the tunnel is subjected to three-time spraying, two-time scraping and one-time surface sweeping, so that precise layered forming is facilitated; fourthly, tunnel lining is conducted; the quality of the tunnel lining is guaranteed through integration of anti-disengaging double control and longitudinal pouring.

The application discloses a preparation method of a high-performance diffusion Sm-Co composite permanent magnet, and comprises the following steps: mixing alloy components according to (Sm, Re)2(Co, A) 17 After the alloy components are mixed, a proper amount of BiI3 is added, magnetic field orientation forming is carried out, and a Sm-Co magnet green body is obtained; the Sm-Co magnet green body is vacuum pre-fired under certain temperature conditions, and a magnet with a network channel structure in the interior is formed; a soft magnetic phase nano-level Fe or Co powder is mixed with an organic solvent to form a diffusion source mixed solution, the pre-fired Sm-Co magnet is immersed into the mixed solution, and after being taken out, the Sm-Co magnet is placed into a vacuum oven and dried. The BiI3 sublimation technology is used to make the soft magnetic phase and the doped elements effectively enter the grain boundary of the Sm-Co magnet, improve the coupling effect and pinning effect of the soft and hard magnetic phases, and improve the coercive force and maximum magnetic energy product. The preparation method is simple in process, low in cost, less in introduced impurities, and capable of maintaining the magnetic performance of the hard magnetic phase to the maximum extent.

The invention discloses a storage unit and a manufacturing method thereof, and a storage array, and the storage unit comprises a substrate which is provided with an active region, and the active region is internally provided with a groove; the first floating gate structure and the second floating gate structure are located in the groove; a barrier layer located on the surfaces of the first floating gate structure and the second floating gate structure; the common source layer is located in a first region of the active region, and the first drain layer and the second drain layer are located in a second region of the active region; the word line layer is located in the groove and covers the first floating gate structure and the second floating gate structure; and the bit line layer is electrically connected with the first drain layer and the second drain layer. The first floating gate structure and the second floating gate structure are located in the groove, and the first floating gate structure and the second floating gate structure cover part of the side wall and part of the bottom surface of the groove, so that a channel correspondingly formed by the first floating gate structure and the second floating gate structure is of a cambered surface structure, and the size of a channel region is increased; therefore, the coupling effect of the word line layer on the channel is enhanced, and the writing and erasing efficiency is improved.

The application discloses a multilayer graphene broadband absorber with a heterostructure coupling cavity, which comprises a substrate layer and a plurality of graphene layers arranged on the substrate layer, and a photonic crystal array layer and a flat plate layer are arranged on both sides of each graphene layer; a plurality of heterostructure coupling cavities are formed on the substrate layer through the photonic crystal array layer, the graphene layer and the flat plate layer. The application forms a plurality of coupling cavities based on the photonic crystal array-graphene-flat plate heterostructure through the layering, when electromagnetic waves are incident on the graphene absorber, the graphene is excited to generate surface plasmons, and under the action of the photonic local effect, the energy of the electromagnetic waves is coupled into the surface plasmons, the resonance cavity effect generated by the coupling cavities can increase the coupling effect, thereby improving the absorption efficiency of the graphene absorber; and the coupling cavities can effectively increase the absorption bandwidth, thereby improving the practical application range of the graphene absorber.

This invention relates to the field of mechanical transmission and friction and wear analysis, and discloses a method, system, medium, and equipment for constructing a dynamic wear model of a wedge-type one-way clutch. The method includes: establishing an analytical model of the dynamic interface force of the wedge, solving for the force and contact area; obtaining the contact pressure distribution, relative sliding velocity, and contact time of the wedge under different working conditions; constructing a wear volume evolution model over time; introducing a wear constitutive equation to establish a quantitative relationship between contact pressure, relative sliding distance, and wear amount; integrating and coupling the wear volume evolution model, the wear constitutive equation, and the dynamic interface force analytical model, correcting the contact friction coefficient and wear coefficient by temperature field factors, and constructing a multi-physics coupling framework; dynamically updating the contact surface geometry based on the wear accumulation results, and recalculating the contact force and wear parameters to form a continuous iterative wear evolution process. This invention can achieve dynamic and continuous prediction of wedge wear, improving the accuracy of wear assessment under complex working conditions.

The invention relates to a ZSM-5 molecular sieve composite metal oxide catalyst as well as a preparation method and application thereof. The catalyst takes a ZSM-5 molecular sieve as a carrier and is loaded with a metal oxide active component; the molar ratio of Si to Al in the ZSM-5 molecular sieve is 13 to 60; the loading amount of the metal oxide is 5-20% of the mass of the ZSM-5 molecular sieve. The ZSM-5 molecular sieve composite metal oxide catalyst is used for efficiently and synergistically purifying gaseous pollutants. Compared with the prior art, by finely regulating and controlling the synergistic effect of the porous confinement structure-acid-metal site oxidation-reduction property of the molecular sieve, the low-temperature synergistic catalytic purification activity temperature window is widened, the synergistic purification reaction activity of the catalyst is improved, and the capability of inhibiting poisoning of toxic by-products of the catalyst is enhanced.

The present application belongs to the technical field of organic electroluminescent materials, and particularly relates to a polycyclic double-boron nitrogen compound containing indole and an organic electroluminescent device thereof. By introducing a substituent group to an unsaturated five-membered ring derivative structure in an MR-TADF system containing a double-boron atom, a slight distortion of a molecular skeleton is caused and a moderate steric hindrance is introduced. The molecular distortion and the steric hindrance can weaken the intermolecular π-π stacking effect, thereby inhibiting fluorescence concentration quenching and triplet exciton annihilation; at the same time, the molecular distortion can enhance the spin-orbital coupling effect, improve the conversion efficiency from a triplet state to a singlet state, increase the reverse intersystem crossing rate, and thus realize higher exciton utilization efficiency and smaller efficiency roll-off.

The invention relates to a broadband low-phase-noise voltage-controlled oscillator based on a CMOS (Complementary Metal Oxide Semiconductor) process, aiming at solving the problems that the wide tuning and low-phase-noise of the traditional Class-F VCO are difficult to be compatible, the tuning range is narrow and the like. The core architecture comprises four parallel VCO (Voltage Controlled Oscillator) units, a matched buffer and a two-stage alternative selector, each VCO unit is integrated with an exclusive optimized transformer, a multi-bit digital controlled switched capacitor array and a parallel resistor array, and a unilateral tuning design is adopted. The switched capacitor array comprises a coarse tuning unit and a fine tuning unit, and is matched with the overlapping margin of each VCO sub-band to realize seamless connection; the transformer adopts a composite regular octagonal structure, so that the quality factor and the coupling coefficient are improved; the buffer suppresses signal crosstalk, and the selector ensures rapid low-loss switching. According to the scheme, ultra-wide continuous tuning is achieved, the full-band phase noise optimally reaches-131.666 dBc / Hz and 1 MHz, the frequency stepping precision and the signal stability are both considered, and the antenna is suitable for high-frequency and high-requirement scenes such as 5G millimeter wave communication and radar detection.

The invention discloses an arc length discrete point positioning and thickness measuring tool for the contour surface of a rotary body part, and belongs to the technical field of irregular surface or contour metering, the arc length discrete point positioning and thickness measuring tool comprises a sheet-shaped reference piece, and the arc convex surface of the reference piece is a binding surface and is used for being attached to the outer contour surface of the rotary body part; a plurality of positioning holes are formed in the reference piece along the length direction and are arranged at intervals according to discrete measurement points, and the positioning holes are in one-to-one correspondence with three-dimensional coordinate discrete points of the discrete measurement points corresponding to the arc length, so that accurate positioning of the measurement points is realized, and manual visual errors are eliminated; the rotating assembly comprises a containing disc, a center column and a connecting rod, the center column is rotationally arranged on the containing disc in the axis direction of the containing disc, the connecting rod is arranged on the center column, and the reference part is arranged at the end, away from the center column, of the connecting rod and can be driven to rotate around the part; and full-contour surface measurement can be completed without repeated disassembly and assembly, so that the precision and efficiency of thickness measurement operation are greatly improved.

The application provides an air atmosphere near-infrared laser sinterable oxidation-resistant copper paste and a preparation method thereof, and the main body of the paste is Cu@glass, which comprises a copper core, and a Bi2O3-B2O3-ZnO glass shell layer with a mass fraction of 5%-20% coated outside the copper core, and the particle size of the copper core is 200 nm-500 nm. The copper paste prepared by using the Cu@glass material greatly improves the near-infrared laser absorption efficiency and oxidation resistance of the Cu@glass particles under the coating structure of the glass shell, and the initial oxidation temperature and the near-infrared light absorption rate of the 10% glass-coated Cu@glass particles are 294 DEG C and 61.8% respectively, so that the stable necking and densification of the copper paste under the irradiation of the near-infrared laser are realized under the condition of the air atmosphere, and a copper conductor film layer with conductivity is obtained.

The application discloses a bionic flapping-wing aircraft. The bionic flapping-wing aircraft comprises a fuselage, wings, a flapping mechanism, an extension mechanism and a power source. The wings are rotatably installed on the two sides of the fuselage, the flapping mechanism is installed on the fuselage and is in transmission connection with the wings, the flapping mechanism is used for driving the wings to flap, the extension mechanism is installed on the fuselage and is in transmission connection with the wings, the extension mechanism is used for driving the wings to extend and retract, and the power source is used for simultaneously providing power to the flapping mechanism and the extension mechanism. The bionic flapping-wing aircraft adopts a single power source to simultaneously drive the flapping mechanism and the extension mechanism, so that the flapping and the extension of the wings can be simultaneously performed, the coupling of the flapping and the extension is improved, the flapping mechanism and the extension mechanism are independent of each other and are directly connected to the power source, and the two do not need to be assembled with each other, so that the structural complexity of the aircraft is reduced.

This invention belongs to the technical field of anti-theft monitoring equipment, specifically a mineral resource anti-theft monitoring device and its usage method, including a signal acquisition station and a seismic pickup, wherein the signal acquisition station is connected to the seismic pickup via data connection; it also includes a flexible loading and unloading component, which is used to install and disassemble the seismic pickup in the mining area; this invention uses an anchoring agent to make an anchoring plate, and utilizes the fluidity of the anchoring agent to make the anchoring plate tightly connected to the mounting hole, and with the matching locking groove of the connecting sleeve, the coupling performance between the seismic pickup and the wall of the mounting hole is effectively improved, the vibration receiving effect of the seismic pickup is enhanced, and thus the influence of the difference in the opening of the mounting hole on the vibration effect is effectively avoided. At the same time, the anchoring plate formed by the anchoring agent can also be dug out and reused when the seismic pickup is disassembled, and the adhesive effect between the same materials can be used to make the anchoring plate tightly connected to the new mounting hole again.

The application discloses a split type deep body temperature monitoring device, a preparation method and application, and belongs to the technical field of temperature monitoring. The monitoring device is prepared from biodegradable materials and comprises a double-layer electrode layer, a spacing layer, a connecting channel, a dielectric layer and a packaging layer. Each of the upper and lower electrode layers comprises a spiral inductance coil, a serpentine connecting wire and a capacitor plate. The spiral inductance coils are arranged on the two sides of the spacing layer and have opposite rotation directions, and are connected in series through the connecting channel to enhance mutual inductance. The serpentine connecting wire is used for connecting the spiral inductance coil and the capacitor plate, and improves mechanical flexibility. The application adopts a split type design, better realizes deep body temperature monitoring, and significantly improves a wireless reading distance and a Q value in cooperation with series-connected double-layer asymmetric coils, so that the accuracy of deep body temperature monitoring is comprehensively improved. Moreover, the sensor is made of fully biodegradable materials, secondary surgery for removal is avoided, and has a good biomedical application prospect.

The application provides a ground stress and microseismic integrated monitoring device and system, wherein the device comprises: a pipe body, a grouting channel is formed in the pipe body; a stress monitoring assembly is sleeved on the pipe body, and a cavity is formed between the stress monitoring assembly and the pipe body; a microseismic monitoring assembly is sleeved on the pipe body; a cable connecting assembly is sleeved on the pipe body, and the stress monitoring assembly and the microseismic monitoring assembly are connected to the cable connecting assembly; wherein the stress monitoring assembly is located between the microseismic monitoring assembly and the cable connecting assembly. In actual use, the device can perform stress monitoring and microseismic monitoring on the rock mass based on the same borehole, reduces the number of openings during monitoring, reduces the monitoring cost, improves the consistency of the monitoring positions of the stress monitoring assembly and the microseismic monitoring assembly, improves the coupling between the stress information and the microseismic information, weakens the influence of the monitoring position difference between the microseismic monitoring assembly and the stress monitoring assembly on the analysis accuracy, and enhances the monitoring and early warning capability of the engineering site.

The application relates to the technical field of multi-modal target detection, in particular to a multi-modal interactive target detection method and system based on soft fusion supplement and a readable storage medium. Multi-modal features are extracted by using a double-flow backbone network, a soft fusion supplement multi-scale interactive module is added after each layer of feature extraction, the soft fusion supplement multi-scale interactive module comprises a cross-modal soft fusion module and two multi-scale exchange gate modules; the cross-modal feature soft fusion module is used to form fusion features, to supplement missing modal information for the two branches and to increase the coupling of the cross-modal features; the double-branch features after the supplement are adaptively enhanced in a significant area through the multi-scale interactive gate module; the fusion timing of the last layer of the improved feature extraction is further improved to further improve the global alignment of the cross-modal under deep semantic, so that the problem that the anti-interference ability is weak when the difference between the two branches is large and one branch is invalid is avoided. The application aims to solve the problems of how to inhibit noise in hierarchical transmission and how to reduce the interaction ability due to feature loss.

The application belongs to the technical field of optical electric field sensing, and discloses a U-shaped cascade waveguide nested micro-ring resonant cavity type electric field sensor and a preparation method thereof. The electric field sensor comprises an input coupling unit, an optical sensitive unit and a spectrum detection output interface. The optical sensitive unit comprises an incident grating, a U-shaped cascade waveguide structure, a nested micro-ring resonant cavity and an electro-optic polymer film. The nested micro-ring resonant cavity comprises a reference resonant cavity and a sensing resonant cavity. The electro-optic polymer film covers the cladding layer of the sensing resonant cavity. The application expands the equivalent free spectral range of a single resonant unit through a U-shaped feedback structure, utilizes the free spectral range difference between the two resonant units to form a vernier effect to amplify the sensing response, and simultaneously adopts a heterogeneous integrated vertical coupling mode to improve the system integration and packaging consistency, and improves the sensing sensitivity and measurement range.

An assembled wireless charging road magnetic guide surface layer unit and a construction method thereof, which relate to the technical fields of wireless charging roads and assembled pavement structures. The unit is used for solving the problems of magnetic shielding, difficult implementation of discrete partition construction on site, and low integration of wireless charging modules and road surface layer structures in the prior art. The magnetic guide surface layer unit comprises an electromagnetic module and a prefabricated asphalt concrete surface layer plate. The electromagnetic module comprises a GFRP bottom support, an electromagnetic shielding plate, a transmitting coil, a local pouring seal layer and a GFRP top plate. The prefabricated asphalt concrete surface layer plate comprises a magnetic guide asphalt mixture area and a common asphalt mixture area. The construction method comprises the steps of prefabrication of an assembled composite functional unit, layout of a roadside power supply system, setting of a power supply line channel, civil preparation of a road functional area, installation of the functional unit, electrical connection, joint treatment and system debugging and detection. The unit is used for wireless charging roads for electric vehicles.

The present disclosure relates to a high-performance composite board prepared from waste wind power blades and a preparation method thereof. The high-performance composite board contains a large amount of waste wind power blade powder and waste wind power blade degraded glass fiber. The preparation cost of the high-performance composite board can be reduced. The powder prepared from the waste wind power blades and the regenerated glass fiber obtained by the chemical degradation method can be recycled and reused. The resource utilization of the retired wind power blades is realized. The problem of resource utilization of the retired wind power blades is effectively solved. In addition, the coupling effect of the waste wind power blade powder and the waste wind power blade degraded glass fiber with the thermoplastic resin is good. Under the synergistic action of the compatibilizer, wood powder, filler and lubricant and other materials, the mixing and stirring effect can be improved. The waste wind power blade powder and the waste wind power blade degraded glass fiber can be uniformly dispersed in the high-performance composite board. The physical properties of the composite board, such as tensile resistance, bending resistance and compression resistance, can be improved.