15 results about "Reverse transformation" patented technology

The application discloses a TMCP preparation method of a low-carbon equivalent high-strength steel of a ship plate, and belongs to the technical field of metal material processing. The steel material comprises C, Si, Mn, Ni, Cr, Mo, Al, Nb, P, S, Fe and impurities. The preparation method comprises the following steps: smelting and continuous casting, slab heating, controlled rolling, quenching treatment and reverse phase transformation annealing. The application adopts low-carbon medium-nickel collaborative design, replaces interstitial atom carbon with substitution atom nickel as an austenite stabilizing element, introduces high-density crystal defects through controlled rolling, obtains full martensite structure in combination with offline quenching, and then is subjected to two-phase zone reverse phase transformation annealing to obtain the final structure of a tempered martensite matrix with 10% to 20% thin film-shaped reverse transformation austenite distributed thereon. The obtained steel material has high yield strength and high impact energy at-80 DEG C, and welding does not need preheating, and has high strength, excellent low-temperature toughness and excellent welding performance, and is suitable for high-value-added application scenarios such as polar ships.

The method is for homolytic and heterolytic cleavage in molecules of gases and liquids with the release of bonding energy and its use to change the internal geometric architecture of some molecules, leading to the synthesis of new chemical compounds that are not contained in the initial gases and liquids, with the secondary release of energy during the synthesis process, without carrying out nuclear reactions on equipment for its realization, characterised by an increase in the energy of the work environment and use of this energy to generate thermal energy with simultaneous synthesis of new chemical compounds, in consequence of the physical effect of a standing pressure wave on the gas and liquid molecules at various temperatures, where the temperature is a measure of activation energy, and subsequent dissociation of the molecules into atoms or fragments of molecules (radicals), partial ionization of atoms and subsequent transformation of the bonds in atoms of the molecules with no change to atomic number but with a change to atomic mass and in the proton-neutron ratio. The method also consists in the direct conversion of neutron mass into the mass equivalent to the total mass of 1 electron and 1 proton that do not go beyond the framework of the electrodynamic interaction of electrons and the nucleus, which ensures the absence of radiation, where the method also consists in the transformation of an atom into a chemical molecule or the reverse transformation of 1 electron and 1 proton into 1 neutron from the volume, where these elementary particles can be free, with external exchange of energy and mass equalling the mass with a positive charge and equal to the reduction in the mass of the neutron and proton. The method furthermore consists in a back reaction to the physical effect consisting in the formation of new chemical compounds that are not contained in the initial gases and liquids, with the release of the energy produced during the process of recombination of atoms into the original molecules, where the execution of the proposed method takes place through a combination of initial influences, such as for example: 12 C 1 H 4=16 Ne=16 O, while the method further consists in rearranging the architecture of some molecules without changing the atomic number, mass number, atomic weight as a reaction to a physical impact, during which new chemical compounds are synthesized, including those that they are not contained in the initial gases and liquids, while the energy generated during these synthesis reactions is released, for example 14 N 2=12 C 16 O; 12 C 16 O 2=14 N 2 16 O. The proposed method is implemented by a combination of initial influences, such as:increase in temperature of up to 250° C., ideally 140° C. to 150° C.;reduction in pressure (creation of a reduced atmosphere) to-100 kPa, ideally-65 kPa;generation of standing pressure waves;electric discharge (tribostatic discharge, barrier, spark) with a breakdown voltage of 1 to 15 kV;the value of the magnetic field in the reactor based on the discharge in the gas is 70 to 120 nTl;micro-explosions;impact, impact force, at which negative acceleration at from 50,000 to 150,000 g occurs;or a combination of these influences.The apparatus for converting hydrocarbon and non-hydrocarbon gases and liquids consists ofan acceleration module, which is a piece of apparatus accelerating a mixture of gas and liquid up to a speed of 30 to 400 m / s;a deceleration module, which is a tribostatic energy generator covering 70% to 90% of the reactor's cross-section;a tribostatic generator, which consists of two electrodes which are placed side by side an on which positive and negative charges are mutually created;a reduced atmosphere zone after the deceleration module.

The present application relates to a kind of big data platform-oriented stream data incremental cleaning method, belong to data cleaning technical field, comprising the following steps: step 1: data stream is divided into sliding window according to the preset window time length, and adjacent relation graph is constructed according to leaf node co-occurrence relationship;Step 2: the data record in each near neighbor bucket is constructed field fingerprint string, and the data record that field fingerprint string is not identical with all leading mode fingerprints in leading mode fingerprint set is marked as dirty data mode seed;Step 3: with dirty data mode seed as the initial label of dirty data area, the data record of dirty data area is executed local cleaning operation according to original field unit and is recovered after inverse transformation and outputs cleaning result.The present application is applicable to real-time big data scene such as Internet of Things and financial transaction.

The application provides a Hawk algorithm acceleration method based on GPU multi-thread parallelism. The Hawk algorithm acceleration method based on GPU multi-thread parallelism comprises the following steps: (1) thread resource division and task mapping; (2) kernel fusion and throughput peak detection; (3) NTT / iNTT parallelization reconstruction and memory access optimization; (4) FFT / iFFT structured parallelization optimization and butterfly operator fusion. The application realizes a coarse-grained parallel butterfly operator execution mode without complex address calculation, without shared memory synchronization, and without competition between threads, greatly improving the throughput efficiency on the GPU; meanwhile, the application unifies the parallel execution framework in the forward and inverse transformations of FFT / NTT, wherein the inverse transformation only needs to use the corresponding inverse rotation factor and perform simple normalization processing at the end to complete the overall recovery.

This invention discloses a low-storage, high-reliability transceiver cooperative interleaving transformation method for random multiplexing communication systems. The method includes: at the transmitter, mapping the bit stream to be transmitted into source domain information symbol vectors; interleaving and rearranging the symbol vectors using a low-storage interleaver; performing phase perturbation and multi-layer coupling transformation on the interleaved and rearranged transmitted signal to generate a high-reliability random multiplexing modulation signal and adding a cyclic prefix before sending it to the receiver; at the receiver, after receiving the signal, removing the cyclic prefix to obtain a time-domain observation signal vector; performing iterative signal detection using an HR-CD-MAMP detector matched to the transmitter's transformation to complete symbol estimation; and completing the interleaving and deinterleaving operations of the high-reliability transformation and inverse transformation in the iterative estimator using a low-storage interleaver corresponding to the synchronization parameters to recover the source domain symbol vectors; and recovering the binary bit stream from the obtained source domain symbol vectors through digital demapping.

The application discloses a mixed-precision dequantization system and method for in-memory computing, and belongs to the field of integrated circuits and artificial intelligence hardware. The system comprises a digital domain pre-alignment module, an analog in-memory computing core and a general dequantization DQ-SIMD unit. The pre-alignment module completes floating-point activation processing and generates an activation value compensation term. The analog in-memory computing core completes multiplication and accumulation and eliminates physical offset errors based on a 1T1R single-terminal array. The dequantization unit realizes fixed-point to floating-point conversion and asymmetric quantization inverse transformation through a three-stage pipeline. The application proposes a single-terminal storage scheme of non-negative shift mapping in view of the core contradiction between mixed-precision computing requirements and the non-negativity of device conductance when deploying a large language model inference on a 1T1R structure RRAM array. The single-terminal storage scheme is matched with a double-error elimination mechanism of software and hardware cooperation to realize single-terminal storage of signed weights by superimposing a fixed offset in the analog domain and to eliminate physical errors introduced by the offset in real time through a pipeline circuit in the digital domain.

The goal is to improve the volumetric energy density in the assembly method of battery modules. [Solution] In the molding process, a superelastic alloy restraining member 13 is molded to pressurize and restrain a plurality of stacked battery cells 12 in the stacking direction, so that it takes on a pressurized shape relative to the battery cells 12 when the temperature is above the reverse transformation completion temperature Af. In the cooling and expansion process, the molded restraining member 13 is cooled to below the reverse transformation start temperature As, which is lower than the reverse transformation completion temperature Af, and the restraining member 13 is expanded until it takes on a non-pressurized shape relative to the battery cells 12. In the restoration process, the expanded restraining member 13 is heated to above the reverse transformation completion temperature Af, thereby restoring the restraining member 13 to its pressurized shape.

The present application relates to the technical field of energy storage, and provides a three-phase active power independent configuration method for a converter based on a minimum norm solution, constructs the correlation between three-phase current and voltage, establishes a linear equation set according to the KCL current constraint condition and the correlation, solves the linear equation set through a minimum norm solution standard algorithm, generates three-phase current sine reference values based on the output angle of a grid phase-locked loop, separates positive and negative sequence components through a signal delay method, obtains positive and negative sequence voltages by using a double-current loop feedforward decoupling control algorithm, generates voltage values through Park inverse transformation, generates PWM signals to drive the conduction or turn-off of converter power switching tubes according to the voltage values, and outputs three-phase voltages. The present application realizes independent and flexible configuration of three-phase active power and automatic minimization of reactive power, guarantees the real-time performance of control and engineering compatibility, adapts to complex scenarios such as distributed energy access and unbalanced load compensation, and improves the stability of power grid operation and energy utilization efficiency.

This invention relates to a method for calculating the settlement state of pipe piles embedded in solidified soil. The steps are as follows: establishing a theoretical model of the solidified soil composite pipe pile-soil system; dividing the soil around the pile into a series of annular layers, and considering the differences in properties between the solidified soil around the pile, the transition zone, and the surrounding undisturbed soil, establishing equilibrium formulas for the soil around the pile in any layer under vertical load, the soil core solidification, and the pipe pile under vertical load; solving the soil around the pile equilibrium formula using Laplace transform and the method of separation of variables, and obtaining the side friction resistance of the soil around the pile to the outer wall of the pipe pile by recursively applying the continuity condition between adjacent layers, solving the soil core solidification equilibrium formula, and obtaining the side friction resistance of the soil core solidification to the inner wall of the pipe pile; solving the pipe pile equilibrium formula, and obtaining the amplitude-frequency response of the pile top displacement based on the continuity condition of the pile-soil system, and obtaining the calculation formula for the pile top settlement under any vertical load at any time through inverse Fourier transform and convolution.

One embodiment of the present application relates to the technical field of engine control and discloses a method and a device for engine rotation control.The procedure includes the following: performing an inverse Park transform and an inverse Clark transform on the control output results of a position loop, a speed loop, and a current loop to obtain SVPWM signals of a current cycle; decoupling an interrupt control cycle from a PWM signal reference channel; acquiring current position sampling information from a motor and predicting the position sampling information to obtain position result information from a motor rotor in predicted cycles; performing an inverse Park transform and an inverse Clark transform on the position result information to obtain SVPWM signals of the predicted cycles; generating an SVPWM control signal group according to the SVPWM signals of the current cycle and the SVPWM signals of the predicted cycles, and controlling the motor according to the SVPWM control signal group.In the motor rotation control method of the embodiment of the present application, an interrupt function trigger signal is added to achieve decoupling from the PWM signal reference channel, so that the SVPWM signal update frequency of the motor control is not affected when the CPU utilization is reduced by adding an interrupt function planning cycle.

This invention provides a method for obtaining the stator current value of a permanent magnet synchronous motor, comprising the following steps: S1, establishing a mathematical model in simulation software, simulating the parameters of the motor under test to obtain the id iq instruction table; S2, collecting the current three-phase current, rotor angle, and electromagnetic torque of the motor under test; S3, obtaining the values ​​after Clark and Park transformations of the values, and feeding them back to the comparator; S4, the id iq instruction table sends a set of instructions to generate three-phase current through a PI current regulator, Park inverse transformation, SVPWM module, and inverter, collecting the current, rotor angle, and electromagnetic torque data of the motor under test, repeating the adjustment until stable, and then the id iq instruction table sends the next set of instructions; S5, repeating step S4 until the id iq instruction table has sent all instructions, and using the collected data as the basic training data for constructing the mathematical model; S6, the mathematical model calculates the optimal torque-speed-current relationship table. This invention provides a simple and accurate method for obtaining data, applicable to different motors.

The application discloses a production method of high-strength high-low-temperature toughness 3.5Ni steel medium plate, and the production process comprises the following steps: molten iron pretreatment, converter, LF and RH / VD refining, continuous casting, heating, rolling, MULPIC cooling, finishing and heat treatment; the chemical components of the steel are as follows in percentage by weight: C=0.03%-0.10%, Mn=0.02%-0.12%, Si=0.05%-0.15%, Ni=3.2%-3.8%, P<=0.010%, S<=0.005%, Mo=0.20%-0.50%, and the rest is Fe and inevitable impurity elements. The application refines the grain through micro-alloying and controlled rolling+on-line quenching+intercritical quenching+tempering heat treatment process, optimizes the proportion of critical ferrite and reverse transformation austenite, obtains the ferrite and martensite structure between soft and hard phases, improves the strength and low-temperature toughness, and the yield strength is greater than or equal to 420MPa, the tensile strength is greater than or equal to 520MPa, the total elongation is greater than or equal to 18%, and the impact energy at-140 DEG C is greater than or equal to 100J.

This invention discloses a method and system for rapidly implementing a polynomial multiplier using a multi-stage pipelined structure, relating to the fields of cryptography and hardware acceleration technology. The method includes: initializing operational parameters; constructing a modular multiplication unit composed of a large number multiplier and a Montgomery modular reduction unit; constructing a butterfly operation unit based on the modular multiplication unit, modular addition unit, and modular subtraction unit; acquiring two polynomials to be computed and extracting their correlation coefficients; inputting the correlation coefficients and operational parameters into the butterfly operation unit and performing a forward transformation using negative wrapping convolution technology and a fast iterative algorithm to obtain even-numbered and odd-numbered point-value coefficients; performing point-value multiplication operations based on the even-numbered and odd-numbered point-value coefficients to obtain a new point-value result; and inputting the new point-value result into the butterfly operation unit for a reverse transformation to obtain the final multiplication result of the two polynomials. This provides an efficient and universal NTT polynomial multiplier, thereby improving the efficiency and security of polynomial operations.

The application discloses a semi-parameterized airfoil leading edge design and modification method, which comprises the following steps: designing or fitting the leading edge of an initial airfoil as a circular arc tangent to the trailing edge and the root of the hub; determining a setting angle and a rotation point, and transforming the airfoil to a positioning coordinate system through rotation and translation; constructing an elliptic line as a leading edge line in the positioning coordinate system, wherein the elliptic line passes through the trailing edge and the root of the hub, is tangent to the airfoil at the trailing edge and has a continuous second derivative; calculating characteristic parameters of the elliptic line based on the geometric information of the trailing edge; and splicing the elliptic line after reverse transformation with the original airfoil to obtain a final airfoil. The application improves the first-order continuity of the leading edge profile to the second-order continuity, effectively reduces the over-acceleration of the leading edge, improves the variable attack angle performance, meanwhile, retains the physical characteristics and parameterized expression of the leading edge wedge angle, and balances the aerodynamic performance and the engineering design requirement.

The present application relates to the technical field of flexible direct current transmission, and provides a multi-terminal HVDC VSG parameter coordination method based on an equivalent synchronous machine model. The method obtains the rated capacity of each converter station and its VSG control parameters, converts them into equivalent synchronous generator model parameters, including equivalent inertia time constant and equivalent damping coefficient, through a preset mapping relationship; performs coordinated calculation with the constraint of consistent inertia parameter per unit capacity and consistent damping coefficient per unit capacity, sets a unified equivalent inertia time constant for each station, and proportionally allocates the equivalent damping coefficient according to the rated capacity to obtain the coordinated equivalent parameter pair; and restores the coordinated equivalent parameter pair to the executable VSG control parameters of each station through inverse transformation of the mapping relationship and issues them. The present application quantifies and coordinates the dynamic response characteristics of each converter station, solves the low-frequency power oscillation caused by parameter mismatch when multiple stations are connected in parallel, and improves the overall frequency stability and dynamic performance of the system.