98results about How to "Regular" patented technology

The invention relates to a complete set of test method of a soft soil iron structure vibration table. The method comprises the following steps of: preparation of soft soil in a model box in a vibration table model test, design of a model box, and typical subway station structure and joint structure test simulation and measurement system. The station structure and joint structure model can be manufactured from a particle reinforced concrete structure; and the inner side of the rigid boundary in the excitation direction of the model box is lined with a flexible material. The rigid fixing boundary is made into a support frame by angle steel, a wood plate is used as the side wall of the box body inside, and the bottom material is steel plate. In a direction vertical to the horizontal vibration direction, each inner wall of the box body is lined with a polystyrene foam plastic plate; and in the direction of the horizontal vibration, a polystyrene film is stuck on each inner wall of the box body, and broken stone is stuck on the bottom of the model box. A resistance strain gauge type pressure box of the measurement system measures the ground-breaking pressure time interval of the soil body in the model box, a resistance strain sensor measures the strain time interval of the station structure, and a piezoelectric type acceleration sensor measures the acceleration time interval of the soil body and the station structure. The method provided by the invention realizes vibration table test for the station structure and running tunnel structure community in the underground railway building structure of a soft soil region.

The invention provides a method and device for active noise reduction of a vehicle. The method comprises the following steps: arranging sensors at the positions of noise sources, and collecting real-time noise signal data of each of the noise sources of the vehicle; performing spectral analyses on the real-time noise signal data so as to obtain spectral characteristic information corresponding to each of the noise sources; collecting a noise signal in a driving cabin, and performing the spectral analysis on the noise signal so as to obtain spectral distribution information of noise in the driving cabin; comparing the spectral distribution information with the spectral characteristic information so as to obtain relativity information of the noise in the driving cabin and the noise sources; transmitting a cancellation acoustical signal at a target position in the driving cabin through a loudspeaker according to the relativity information, and enabling waveform cancellation to be formed by the cancellation acoustical signal and the noise of the noise sources. Through the adoption of the method and the device which are disclosed by the invention, the active noise reduction of a driving space and a riding space of the vehicle can be realized.

The invention discloses a network-on-chip system for a layered MCC. Computing resource units are connected with router nodes to provide resources such as data of the router nodes during computing; the router nodes turn into an annular topological structure through coordination connection to form into a first layer for a MCC network-on-chip system; the first layer is used for enhancing local characteristics and performance of the network-on-chip system; and the router nodes and super nodes are combined to form into the super nodes which are used for forming into a two-dimensional Mesh topological structure which is simple in structure and low in network cost and has planarity, regularity and good expansibility. According to a MCC interconnection network, a certainty shortest path router is utilized; average communication delay, average handling capacity and link utilization rate are analyzed and simulated; a result indicates that the MCC is good in network performance in light loading or local communication; FPGA indicates that the MCC interconnection network which is simple and efficient is low in network cost; and the network performance and cost are well balanced.

The invention relates to a design and realization method of an array multiplier based on the reversible 'ZS' series of gates. The method establishes a one-to-one relationship between the reversible definitions in a quantum computer and the inputs or outputs in a truth table and designs a series of reversible logic gates-'ZS1', 'ZS2' and 'ZS3' gates, which have the one-to-one relationship with theinputs or outputs in the truth table, and a quantum circuit diagram of the series of gates only containing double-quantum bit controlled gate and single bit gate. The method is based on Toffoli gate and designs three adding circuits which receive different symbol inputs and obtain the corresponding symbol outputs; the method is based on the 'ZS' series of gates and designs a multiplication circuit structure with the best reversible optimization, namely a quantum array multiplier. The reversible array multiplier can adopt a method similar to the manual calculation to complete the multiply operation with symbolic number in a higher computing speed; and the regularity of the internal structure is high and the internal structure is easy to extend. The design and realization method of the invention is applicable to the circuit design and application of the quantum system and realizes a certain promotion to the design and realization of the quantum large scale integrated circuits.

The invention discloses a novel winding motor stator. The novel winding motor stator comprises a stator core body and a stator winding; 48 rectangular stator grooves, which are isolated at predetermined distances, are formed in the stator core body; the stator winding consists of hair clamps and hair pins which are inserted into the stator grooves based on a predetermined arrangement mode and are bent and then welded based on a certain rule to form the stator winding; the cross sections of the hair clamps and hair pins are square; and first to fourth layers of the hair clamps and hair pins are arranged in the radial direction of the stator from outside to inside in sequence in the stator grooves of the stator core body in the radial direction of the stator core body. By virtue of the novel winding motor stator, the problem of contradiction between the performance and the volume of a generator can be solved, the end height of the stator winding of the generator is lowered, the overall volume of the generator is reduced, the winding groove space factor is improved, and the performance of the generator is improved.

The invention relates to the technical field of intelligent robots, and discloses a leg joint load law analysis method for a quadruped robot. The method comprises the following steps: S1, controllingwalking of thequadruped robot by using a spring inverted pendulum and a virtual model control algorithm; S2, adding a virtual spring damping element between the ideal position and the actual positionof each degree of freedom; and S3, analyzing a walking control algorithm and a load law of the quadruped robot based on the spring inverted pendulum and the virtual model. Positive and negative kinematics analysis is carried out on the quadruped robot by applying a D-H parameter method; the relationship between the foot end position and the joint corner is obtained; then, on the basis of kinematics analysis, kinetic analysis is conducted on the quadruped robot, linear variable-speed walking of the quadruped robot under the diagonal gait is achieved through the spring inverted pendulum and thevirtual model control method, and the load law of all joints in the diagonal gait walking process of the quadruped robot is obtained through analysis.

The invention discloses a topological optimization design method of a periodic perforated constrained damping sheet structure, and belongs to the technical field of structure optimization. The methodincludes: establishing a topological optimization model of a periodic perforated constrained damping plate structure by taking maximization of a macrostructure modal loss factor as an optimization target, taking a damping material microcosmic unit as a design variable and taking a damping material usage amount as a constraint condition; establishing a cell element finite element model of the damping material, analyzing the equivalent density and the elastic matrix of the damping material cell element by adopting a homogenization theory, and establishing a macroscopic finite element model of the periodic perforated constraint damping plate structure on the basis; analyzing the sensitivity of the optimization target, and solving the established optimization model by adopting a moving progressive optimization method to obtain the topological optimization structure of the damping material cell element. According to the design method, the damping characteristic of the constrained damping plate structure can be effectively improved under the condition that the using amount of damping materials is controlled, and the good vibration and noise reduction effect is achieved.

A multi-criteria decision making method for an airplane design economic affordability evaluation process includes step 1, determining design variables and fixed parameters of airplane design, and optionally distributing the design variables to reflect indeterminacy of a design stage; step 2, taking main design parameters as analytic objects, and checking the probability of technological feasibility of a design scheme; step3, on the basis of a technological feasibility analysis result, checking the probability of expense affordability of the design scheme; step 4, if the design scheme is feasible in terms of airplane design technology and is receptible in terms of economic affordability, determining that the design scheme is receptible. Fuzzy interval number and RD (robust design) are combined organically on the basis of probability technology to create the probability multi-criteria decision making method based on the fuzzy interval number and the RD.

The invention provides a biological test method of a mirid resisting effect of cotton secondary metabolite, comprising the following steps: mixing an experimental cotton secondary metabolite sample with defatted milk powder and emulsified solution to prepare emulsified secondary metabolite; then evenly mixing with basic feed to prepare biological test feed; vertically arranging a bottomless transparent tube, sealing the upper end tube mouth by a seal film, dripping the above biological test feed on the film, and covering and sealing by another seal film to prepare a feed sag; and putting the mirid into the bottomless transparent tube to cause the mirid to eat feed, and recording the lethal condition or weight inhibition effect of the mirid. The biological test method of the invention solves the problems that majority of secondary metabolite has small possibility of being in miscibility with artificial feed, and piercing and sucking insects are hard to feed and the like. The biologicaltest method is widely applied, can effectively test drug which is under the stomach toxicity and systemic action simultaneously, can accurately test the inhabitation effect on insects, such as mirid and the like by the cotton secondary metabolite and has strong practicality.

The invention discloses a method for preparing an adsorbent from high-alumina fly ash. The method comprises the following steps: carrying out activating acid leaching on industrial solid waste high-alumina fly ash used as a raw material to obtain an aluminum solution, mixing and reacting the aluminum solution with a surfactant, regulating the pH value of the obtained solution to 6.5-7.5, carryingout flocculation standing, filtering to obtain a solid, drying the solid, and calcining the dried solid to obtain the adsorbent. The adsorbent is applied to adsorption of heavy metal ions cadmium Cd (II), and has the characteristics of high adsorption speed, high adsorption rate, and realization of deep removal of cadmium in low-cadmium-concentration water; and a method is provided for high value-added utilization of the fly ash, and a new way is also provided for treatment of water containing heavy metal ions, namely cadmium ions.

A drafting unit (10) for drafting discontinuous textile fibers comprises a first pair of feed rolls (12) that feed a sliver or strip (18) toward a second pair of drafting rolls (14) that draft the sliver or strip (18). The drafting unit also comprises a control device (11) to control the drafting disposed between the first pair of feed rolls (12) and the second pair of drafting rolls (14), which comprises a third pair of control rolls (20, 22), of which a first roll (20) on one side of the sliver or strip (18) and a second roll (22) on another side of the sliver or strip (18). The control rolls (20, 22) act on the sliver or strip (18) arriving from the first pair of feed rolls (12) in order to take it at a determinate speed of feed toward the second pair of drafting rolls (14).

The present invention discloses one kind of spliced chessboard for chess, Chinese chess and weichi chess. The spliced chessboard consists of checkers of different colors spliced by means of splicing bars of different colors. The production process of the spliced chessboard includes the steps of compartmental adhesion of checker strips in different colors, cutting and re-adhesion.

The invention discloses a playing ball and a manufacturing method thereof, relates to indoor soccer and or other balls in indoor sports, and aims to reduce elasticity of balls. The technical scheme is that: specially processed fillers are appropriately filled in a ball bag, then the ball bag is sealed, a plurality of knitted reinforcement objects are adhered to the ball bag, and a plurality of polygonal skin slices are adhered to the outer surface of the knitted reinforcement objects. In the playing ball, the ball bag is prevented from being separated from the outer skin, the service life of the ball is prevented, the uniformity of the ball is guaranteed and production efficiency is improved.

The invention relates to a method and device for automatically labeling a video, a medium and electronic equipment, and belongs to the technical field of video processing. The method comprises the steps of decomposing a video into frames in response to an obtained video; Grouping the decomposed frames according to a predetermined rule; Connecting each group of frames in series to form a video frame sequence; Inputting the video frame sequence into a machine learning model, and outputting a label of the video frame sequence by the machine learning model; And labeling the video based on the label of the video frame sequence. The video is automatically labeled through the machine learning model, and the labeling accuracy and efficiency are improved.

The embodiment of the invention discloses a signal detection method and device and a visible light communication system. The signal detection method comprises the following steps: performing first transformation on a first constellation corresponding to a first electric signal output by a photon detector in advance to obtain a second constellation in which constellation points are distributed at equal intervals; determining a judgment threshold sequence based on the second constellation; when the first electric signal output by the photon detector is received, converting the first electric signal into a second electric signal following Gauss distribution through the first transformation; and detecting the second electric signal based on the predetermined judgement threshold sequence. The constellation points of the second constellation are regularly distributed at equal intervals, so that the judgement threshold sequence determined according to the second constellation is also regular, and the second signal can be detected based on the judgement threshold sequence through a relatively simple detection algorithm, thereby lowering the signal detection complexity in a visible light communication process.

The invention provides a target depth estimation method and system based on gravity and magnetic gradient data tensor invariants. According to a gravity gradient tensor plane data graph of a sphere model object, calculating a characteristic value of a gradient matrix and a tensor invariant of the characteristic value combination; establishing a relationship between a horizontal distance and a burial depth through arc tangent operation by utilizing the tensor invariant and a total horizontal derivative; and estimating the depth of the target body according to a distance between two 45-degree isolines. According to the method, a depth estimation problem under the condition of a single geologic body or a plurality of geologic bodies with relatively long distances is solved and a relatively high-precision calculation result can be obtained.

The invention relates to an equivalent time-domain model establishing method considering interaction of soil and fan system power. The equivalent time-domain model establishing method comprises the following steps of S1, standardizing the vibration impedance of the interaction of soil and fan basic power, and expressing into dynamic compliance; S2, utilizing a Chebyshev complex polynomial to fit the dynamic compliance, expressing into a recursive function type, establishing a recursive physical model for expressing the interaction of soil and fan basic power, and determining to-be-determined coefficients of springs and dampers in the recursive physical model; S3, establishing the equivalent time-domain model considering the interaction of soil and fan system power. The equivalent time-domain model establishing method has the advantages that when the response of a fan system considering the interaction of soil and basic power under the horizontal excitation is calculated, because the recursive physical model does not contain mass elements, the correction of inputted basic horizontal power load is not needed, and the model is more directly and conveniently applied in actual engineering; by utilizing the recursive property, a motion control equation of the fan system has regularity, and the solving procedure is well universal.

The invention discloses a minimally-invasive S1 sacroiliac joint screw positioning guider which is characterized by including a sliding guide rail (1), a first positioning rod (2), a second positioning rod (3), an anterior superior spine locating sleeve rod (11), a posterior superior iliac spine sleeve rod (12), an S1 spinous process positioning needle (14), an S1 sacroiliac screw sleeve (7), a first guide buckle (4) and a second guide buckle (5). The positioning guider is universal and easy to operate and control, positioning is achieved through constant rules between bone landmarks, the positioning guider does not change along with postures in operations, operation time is reduced, fluoroscopy times are reduced, and learning curves are reduced.

The invention discloses a fireproof door for preventing and controlling a mine fire. The fireproof door comprises a door body and a manhole penetrating through the door body, wherein two sliding doorsare arranged in the door body, and the sliding doors are parallel to the door body and are slidably connected to the bottom of the manhole; the tops of the two sides of the door body are jointly connected to an air flow adjusting device and a pressure relief device; the two sliding doors are respectively arranged on the two sides of the door body, each sliding door communicates with a flow adjusting chamber on the same side of the door body and hermetically communicates with an airflow channel, and the joint of each airflow channel and the corresponding flow adjusting chamber is located in aspace below a partition plate in the corresponding flow adjusting chamber. According to the fireproof door for preventing and controlling the mine fire, two airflow flowing effects are formed by the air flow adjusting device and the pressure relief device, and the flow rates of the air flow adjusting device and the pressure relief device are different, so that a stable airflow flowing trend is formed in a plane, smoke and heat flow impact the fireproof door, flows in a direction parallel to the fireproof door and then flows out to form an airflow circulating process, the smoke is fully in contact with an activated carbon layer to absorb harmful substances, the airflow is guided conveniently, and fire extinguishing is facilitated.

The invention discloses a topology optimization design method of a periodic multi-material structure, belonging to the technical field of structure optimization. Based on the bi-directional asymptoticstructure optimization method, the topology optimization model of periodic multi-material structure is constructed. By defining the initialization parameters, setting the material transformation rules, solving the sensitivity number and optimizing the structure, cyclic iteration is carried out according to the target volume and the final convergence condition of each material, thus completing thetopology optimization design of periodic multi-material structure. This method can make the designed macrostructure not only possess the regularity of periodic structure, has many advantages, such asorderliness, aesthetics, good workmanship and so on, also has many composite characteristics, such as high strength, anti-corrosion, anti-fatigue, high wear resistance, strong insulation and lightweight, and can be widely used in aerospace vehicle, weapon equipment, high-speed rail transit and construction machinery and so on.

The invention discloses a frequency modulation method, device and system based on a new energy supporting machine and an energy storage device and a new energy station. The method comprises the following steps of: acquiring a system frequency deviation value; determining a frequency modulation scheme for the new energy supporting machine and / or the energy storage device according to the system frequency deviation value; and according to the frequency modulation scheme, generating a frequency modulation instruction for the new energy supporting machine and / or the energy storage device, so as to enable the new energy supporting machine and / or the energy storage device to execute the corresponding frequency modulation instruction to adjust the system frequency. The method is high in regularity, flexible in rule adjustment and good in real-time performance. When the system frequency of a power grid fluctuates, a new energy supporting machine with better durability is selected to provide support for the power grid. Only when the system frequency fluctuation is too large, an electrochemical energy storage device with relatively poor durability is selected to support the power grid together. Therefore, the input frequency of the energy storage device is reduced, the safe operation of the energy storage device is realized, and the use safety of the energy storage device is improved.

The invention discloses an online adjustment method for the control parameters of an autonomous aircraft based on MCMC optimized Q learning, which includes the following steps: first, doing statisticsof possible changes of the PID control parameters of an aircraft according to the actual situation to get an action set of parameter adjustment, and initializing the PID control parameters accordingto the aircraft control experience; then, randomly selecting an action to act on the autonomous aircraft, carrying out sampling through an MCMC algorithm according to the function value Q* of each action obtained in a Q learning algorithm to get an action to be taken next moment, and adjusting the learning factor l in the Q learning algorithm through an SPSA step size adjustment algorithm with thepassage of time; and finally, getting the optimal control parameters in the current environment through repeated adjustment of the control parameters. The problems of overshoot and delay in the navigation process of an autonomous aircraft are solved, and an autonomous aircraft can quickly adapt to the change of the environment and quickly and steadily reach the destination.

The invention discloses a cache-based efficient tax data analysis method. The method comprises the following steps: mining valuable detail data though association analysis on the basis of a large amount of tax detail data; establishing a tax data cube, carrying out multi-dimensional depth processing on the detail data through an on-line processing technology, and converting the original detail data into summarized data which is understood by users and truly reflects the tax multidimensional feature. According to the method provided by the invention, by the association analysis on a large amount of tax detail data, unreasonable and non-conforming tax data is eliminated, the correct and valuable tax data is retained, and thus the correctness of decision-making is supported; by establishing the tax data cube, the tax data is multi-dimensionally processed, and different tax features can be found, and thus the comprehensiveness of decision-making is supported; the scheduling task is set to update analysis data in time, and the time is exchanged with the space on the basis of fully utilizing resources, so that the analysis efficiency is greatly improved.

The invention relates to a spinning method for cotton and linen slub yarns. The method comprises the following steps of drafting cotton rough yarns and linen rough yarns, performing gathering, performing twisting, and performing winding to obtain the cotton and linen slub yarns. The sum of the feeding weights of the cotton rough yarns and the linen rough yarns is not changed; a cotton yarn section, a transition section from the cotton yarn section to a linen yarn section, the linen yarn section and a transition section from the linen yarn section to the cotton yarn section form a circulation unit; the length ratio of the cotton yarn section, the transition section from the cotton yarn section to the linen yarn section, the linen yarn section and the transition section from the linen yarn section to the cotton yarn section is a constant value; when the cotton yarn section is transited to the linen yarn section, the feeding weight ratio of the cotton rough yarns to the linen rough yarns is linearly changed from 100:0 to 0:100; and the feeding weight ratio of the cotton rough yarns to the linen rough yarns is linearly changed from 0:100 to 100:0 when the linen yarn section is transited to the cotton yarn section. A fabric spun by the cotton and linen slub yarns spun by the method is softer in hand feeling, stronger in fabric style stereoscopic impression and regular in cloth cover change, and the cotton and linen slub yarns are particularly suitable for the field of fabrics such as clothes.

A design method for the rubber free profile of a node type product comprises the following steps: analyzing and calculating to obtain the effective bearing length L of a rubber body according to the interface size and rigidity performance requirements of the node products; meanwhile, assuming that a connecting line between the mandrel and the tail end of the rubber body between the mandrel and the outer sleeve is K1, selecting connecting points of the rubber molded surface among the midpoint of K1, the tail end N1 of the outer sleeve and the tail end N2 of the mandrel, sequentially connecting the tail end N1 of the outer sleeve, the connecting points and the tail end N2 of the mandrel through line segments, and enabling the connecting points to be in arc transition to obtain the final shape of the rubber molded surface, and moving the molded surface inwards to obtain the free molded surface of the rubber body. The rubber free molded surface can be quickly designed according to the structural characteristics of a traction node metal part, the rubber free molded surface can realize smooth deformation under the action of a large radial load, and the deformed rubber free molded surface is in an approximately straight state, does not have wrinkles and can meet the requirements of high bearing capacity and long service life of the traction node.

The invention discloses a method for manufacturing a frozen picture. The method comprises the following steps: fixing a supporter under the environment of -2 DEG C to -10 DEG C; uniformly brushing or spraying prepared clear water at a temperature of 5-30 DEG C onto the surface of the supporter and guaranteeing the thickness of standing water to be 0.05-0.3 mm; covering color water at a temperature of 5-30 DEG C onto the surface of the supporter; and processing with an ice slush pen or an ice lolly after the water level temperature approaches to 0 DEG C but is not frozen so as to obtain the frozen picture. The method breaks through the fetter that the water cannot be used as a medium agent for drawing below 0 DEG C, exploits a wide space for drawing below 0 DEG C, creates a set of new forms of drawing skills and provides an effective method and a pattern of creation, design, and the like for art workers, drawers and the field of industrial art design.

The invention relates to an FFT (Fast Fourier Transform) structure design method for a split radix. By taking FFT algorithm for the split radix as a reference, a formula is further regularized; a research of FFT collateral pipeline structure design of a 2N point split radix FFT is carried out; and as per requirements of quick calculation and resource optimization, each step in the calculation process performs optimized treatment, so that the FFT collateral pipeline structure of the 2N point is realized. The structure has the advantage of certain regularity; besides, a selective storage method is adopted for twiddle factors in the calculation process, so that abundant storage resources are saved; a CORDIC (Coordinated Rotation Digital Computer) algorithm for calculation is provided for the calculation of the FFT twiddle factors with big points, so that resources are saved; and a calculation introduction of the CORIOD algorithm is also provided.