181 results about "Phase conversion" patented technology

The invention discloses a CO2 trapping absorbent which comprises 20%-50% of proton type ionic liquid, 20%-50% of a phase conversion driving agent and 20%-40% of water, and the phase inversion driving agent is one or a mixture of more of N, N-dimethyl formamide, N-methyl pyrrolidone, pentamethyldiethylenetriamine, tetramethylethylenediamine, tetramethylethylenediamine, tetramethylenediamine, tetramethylethylenediamine and dimethyl piperazine, and the phase inversion driving agent is one or a mixture of more of N, N-dimethyl formamide, N-methyl pyrrolidone, pentamethyldiethylenetriamine, tetramethylethylenediamine, tetramethylethylenediamine and dimethyl piperazine. The absorbent disclosed by the invention has the outstanding advantages of low viscosity, high absorption rate, high regeneration efficiency, high circulation capacity and low regeneration energy consumption, and has a good application prospect.

The invention discloses an intelligent two-dimensional code anti-counterfeiting verification system, and relates to the technical field of anti-counterfeiting, and the system comprises an information coding and encryption module, a phase conversion and encryption module, an optical instruction generation module, a scanning and instruction execution module, and a decryption and verification module. The information coding and encryption module is used for collecting comprehensive information of a product and generating a basic two-dimensional pattern according to a two-dimensional code coding standard. The phase conversion and encryption module is introduced, so that a major breakthrough of a two-dimensional code anti-counterfeiting verification technology is realized, the module can convert key information into phase information, and the phase information is transmitted to the two-dimensional code; according to the optical encryption method, the two-dimensional code is used as a laser source, normalization processing is carried out in combination with laser wavelength, the phase of reflected light in a specific area of the two-dimensional code is changed through a phase mask plate, so that encrypted information is embedded, the security and reliability of anti-counterfeiting verification are greatly improved, normal scanning and reading functions of the two-dimensional code are not affected, and the security and reliability of the two-dimensional code are improved. And a more powerful technical guarantee is provided for product anti-counterfeiting.

The invention discloses an excitation loss fault-tolerant control method and system of an electro-magnetic doubly salient motor, and belongs to the field of motor control. On the basis of rotating speed current double closed-loop control, the control mode of a current loop is improved, two electric cycles are divided into six current conduction states, the conduction state of a power tube is obtained in combination with a converter topological structure after motor excitation loss, the direction of three-phase current is changed, and therefore the commutation process of the current is optimized, and the current conversion efficiency is improved. The amplitude of current change is reduced, the torque pulsation of the motor after excitation loss is reduced, and the torque current ratio is improved. According to the invention, the problem that the torque pulsation is large and the torque current ratio is low when the electro-magnetic doubly salient motor adopts a traditional field loss fault-tolerant control strategy is solved. By changing the conduction sequence of the power tubes, the purposes of suppressing the torque ripple of excitation loss operation of the electro-magnetic doubly salient pole and reducing copper consumption are achieved, the algorithm control is simple, and the portability is high.

The invention provides a driving circuit, a driving method, a scanning circuit, a scanning method and a display device, and relates to the technical field of display driving. The driving circuit comprises a shift register sub-circuit and an output sub-circuit, and realizes phase conversion control from an effective level of a first control clock signal output by the shift register sub-circuit to a first level output by the output sub-circuit. The end time control of the first level output by the output sub-circuit is realized based on the control of the interval clock signal, and the purpose that the pulse width of the first level output by the output sub-circuit is adjustable can be realized by optimizing the interval clock signal. And the purpose of adjusting the interval of the first levels output by the output sub-circuits of the adjacent driving circuits in the scanning circuit is achieved. According to the technical scheme provided by the invention, improvement is carried out on the basis of the shift register sub-circuit, and the output sub-circuit connected with the output of the shift register sub-circuit is added, so that related functions of the driving circuit can be realized, and the design difficulty of the driving circuit is reduced.

A high frequency amplifier includes an asymmetrical Doherty amplifier having a carrier amplifier, a peak amplifier, a branch circuit, and a phase adjusting circuit, a driver amplifier, and a base member mounting a first circuit board mounting the driver amplifier, the carrier amplifier, and the peak amplifier and a second circuit board mounting the circuits. The branch circuit divides a path of a RF signal into input paths of the peak and carrier amplifiers. The driver amplifier, the carrier amplifier, and the peak amplifier have rear surfaces in contact with the base member. The electrical length from the output terminal of the driver amplifier to the input terminal of the peak amplifier, when converted based on a phase of the signal, is from (2n+1)×π−π / 4 to (2n+1)×π+π / 4, where n is an integer greater than or equal to zero.

The invention provides a preparation method and application of graphene oily slurry. The preparation method comprises the following steps: converting aqueous graphene slurry into oily graphene slurry through a phase conversion method; the phase property conversion method comprises the following steps: adding an oily dispersant, base oil and a cosolvent into the graphene aqueous slurry to form a water-in-oil graphene emulsion; converting the water-in-oil emulsion into an oil-in-water emulsion through a reverse phase agent; and removing water and the cosolvent in the oil-in-water emulsion to obtain the graphene oily slurry. According to the technical scheme, the graphene oily slurry obtained through a phase property conversion method retains a good dispersion state of graphene in water-based slurry, and can be uniformly dispersed in base oil / lubricating oil through a simple mixing method, so that the problem that graphene powder is not easy to disperse when being directly added into the lubricating oil is avoided; the additive can be directly used as a lubricating oil additive, so that blending of the additive with good anti-wear and anti-friction performance can be realized by adopting conventional equipment.

A beam steering system includes a differentially segmented aperture antenna comprising a plurality of pyramid structures arranged in an array, and a plurality of elements formed in an array, each element being defined between two adjacent pyramid structures; phase conversion circuitry to determine a phase conversion for each element, the phase conversion for each element being based on an angle of a target with respect to the element, and an operating frequency of the DSA antenna; transmit phase shift circuitry to apply a phase difference for each element based on the phase conversion, the phase difference steering the signal to the target so that the signal interferes constructively; and receive phase shift circuitry to apply a phase difference for each element based on the phase conversion, causing the signal to interfere constructively for a signal of interest, and suppresses an unwanted signal by steering the signal into a null.

The invention discloses a distributed power supply wireless synchronous grid-connected control method and system considering frequency difference, and the method comprises the steps: firstly, carrying out the real-time calculation of the phase of a far-end voltage through employing a virtual rotating shaft frequency phase conversion technology on the basis of considering the frequency difference between a near-end power grid and a far-end distributed power supply; secondly, an error coefficient is defined, and the compensation precision of the voltage phase in the synchronous grid connection process is quantified; and finally, improving the phase standard during grid connection of the distributed power supply by considering the error generated by the sampling frequency of the measuring device so as to ensure the seamless connection of the electric energy transmission between the distributed power supply and the power distribution network, reduce the energy loss, and monitor the voltage frequency conditions of the power distribution network side, the load side and the distributed power supply in real time. And the safety and reliability of power supply are ensured.

The invention discloses a vacancy isolation preparation method of monodisperse nano alpha alumina, and relates to the technical field of new materials, alpha alumina can be obtained through heat treatment of various activated alumina, but the alpha alumina can be obtained while alumina of other crystal forms is converted into alpha alumina. Generally accompanied by the process of combining and growing other crystal forms of nano-crystalline grains into wormlike alpha-type aluminum oxide crystalline grains, the nano-alpha-type aluminum oxide of less than 100 nanometers is difficult to obtain in a phase inversion manner. According to the preparation method, rho aluminum oxide which can be hydrated to obtain nano-particles is used as a raw material, through adsorption and desorption of lithium chloride, a hydration product is subjected to volume expansion, vacancies left after desorption of lithium ions change a conversion path of phase conversion to alpha aluminum oxide, and combination and growth (hard agglomeration) of crystal grains are prevented; therefore, the monodisperse nano alpha-type aluminum oxide can be efficiently prepared on a large scale.

The partition dormancy type resolution-adjustable capacitor array analog-to-digital converter comprises a normal-phase conversion capacitor array which comprises a normal-phase high-capacitor array and a normal-phase low-capacitor array; the anti-phase conversion capacitor array comprises an anti-phase high capacitor array and an anti-phase low capacitor array; the sampling module is used for carrying out initial sampling on the input signals from the top plates of all the capacitor units; the comparator is used for comparing an input signal or the states of the normal-phase conversion capacitor array and the reverse-phase conversion capacitor array and outputting bit data; the shift register is used for storing bit data; and the state switching module is used for being matched with the bridge switch to control circuit connection states of all the capacitor units, and the circuit connection states comprise a connection state and a voltage state. According to the invention, the energy consumption required by the capacitor unit is reduced through a partition dormancy mode, and the number of unit capacitors is reduced, so that the overall power consumption of the analog-to-digital converter is reduced.

Disclosed are a clock phase converter and a phase converting method that can generate a converted clock signal with a desired amount of delay by selecting and outputting an output signal corresponding to a preset value among output signals of a plurality of delayed clock signal generators that detect the transition of a clock signal and generate delayed clock signals by sequentially delaying the clock signal by a certain period of time.

The invention provides an information determination method, electronic equipment, a storage medium and a program product, which can be applied to the technical field of server firmware updating. The information determination method comprises the steps that in response to received to-be-verified information, the to-be-verified information is decoded based on a preset decoding strategy to obtain decoded information, the to-be-verified information is obtained by encoding identification information based on a preset encoding strategy, and the identification information is used for indicating a firmware updating process; the preset coding strategy comprises a coding conversion strategy and a phase conversion strategy; and under the condition that the decoding information is matched with reference information of the identification information, action information is determined from an action information set based on the equipment state, the storage partition and the process type of the identification information, so that an indicator lamp executes an indication action based on the action information, and the indication action is used for indicating an updating process of firmware.

The invention discloses a dimension-level constellation disassembly transmission method based on high-dimensional constellation selective mapping, and belongs to the technical field of optical fiber communication. The method comprises the steps that a traditional high-dimensional constellation is constructed, the number of constellation points needing to be extracted is determined through an entropy limit adaptive tuning function, then needed constellation points are extracted from the traditional high-dimensional constellation, and a shaped high-dimensional constellation is obtained; performing dimension-level disassembly on the shaped high-dimensional constellation to obtain a low-dimensional constellation set; performing phase conversion on the low-dimensional constellation set, and transmitting the converted low-dimensional constellation set to a channel for transmission in a spherical coordinate And receiving the low-dimensional constellation set at a receiving end, combining and restoring the low-dimensional constellation set into a high-dimensional constellation, and performing corresponding judgment on the high-dimensional constellation to obtain bit data. Part of constellation points are selected from a high-dimensional constellation to carry out data bearing and transmission, and the Euclidean distance between the constellation points is increased to reduce the bit error rate. And a high-dimensional constellation is disassembled into a low-dimensional constellation set for transmission in the form of a spherical coordinate system, so that the bit error rate rise caused by relatively large influence of a channel on transmission is avoided.

The invention discloses a color image encryption method based on dynamic constraint holographic coding, and the method comprises the encryption steps: firstly, coding a color plaintext image into a pure phase hologram based on dynamic constraint holographic coding, and then converting the pure phase hologram into a conversion amplitude through phase-to-amplitude conversion; finally, the converted amplitude is encrypted into a visible ciphertext image by using an iterative phase retrieval algorithm under structured light illumination, and a diffraction neural network is generated at the same time; and a decryption step: firstly, generating decryption structured light by using the decryption structured phase mask to illuminate the visible ciphertext image, carrying out forward diffraction propagation, generating a reconstruction amplitude after phase modulation of the diffraction neural network, and then converting the reconstruction amplitude into a conversion phase through amplitude-phase conversion, and finally, performing color holographic reconstruction decryption on the converted phase to obtain a color decrypted image. The color image encryption method provided by the invention has the advantages of large key space, high security and high concealment.

The present application discloses a grid-connected system and a synchronization method, wherein the grid-connected system comprises: a controller, a main switch, a transformer and a current transformer; the output end of the current transformer is connected to the low-voltage side of the transformer, and the high-voltage side of the transformer is used to connect to the power grid through the main switch; before the current transformer is connected to the grid, the main switch is disconnected; the controller is used to control the current transformer to start off-grid, and according to the phase comparison result of the voltage phase of the power grid and the voltage phase of the high-voltage side of the transformer, the voltage frequency of the current transformer started off-grid is closed-loop controlled to make the voltage phase of the high-voltage side of the transformer consistent with the voltage phase of the power grid. The phase with a faster change is converted into a frequency with a slower change speed, and the controller controls the frequency of the output voltage of the current transformer to gradually approach the frequency of the power grid, thereby realizing the control of the phase, thereby realizing the rapid synchronization of the phases on both sides of the main switch.

The present invention relates to the technical field of direct current transmission systems, and discloses a commutation control method, device, electronic device and readable storage medium of a converter. The method comprises: obtaining the commutation state of the converter; judging whether the commutation state is normal; when the commutation state is abnormal, controlling the converter to start the energy consumption mode and adjusting the energy consumption parameters of the converter. By implementing the present invention, on the basis of ensuring the successful commutation from the main branch to the auxiliary branch, the transmission power in the direct current transmission system where the converter is located can be maintained by adjusting the energy consumption parameters of the converter, avoiding the influence of the receiving end AC fault on the direct current transmission system, and ensuring that the direct current transmission system is in a stable operating state.

The invention relates to the technical field of pumped storage unit control, and discloses a control method and system for a phase modulation working condition of a constant-speed pumped storage unit, and the method comprises the steps: obtaining a control instruction which is used for controlling the working mode of the pumped storage unit to be converted from a power generation working condition to a phase modulation working condition; controlling the pumped storage unit to be switched from an automatic voltage regulation mode to an automatic reactive power regulation mode based on the control instruction; based on the control instruction, in the process of controlling the active power of the pumping storage unit to be reduced, the reactive power of the pumping storage unit is synchronously and actively improved; working parameters of the pumping and storage unit are obtained in real time, when the working parameters meet the preset water pressing condition, a water pressing instruction is output, and the water pressing instruction is used for controlling the pumping and storage unit to press water; and when water pressing is completed, after the active power and the reactive power of the pumping and storage unit are controlled to be stabilized at the corresponding preset target values, the pumping and storage unit completes working condition conversion. The pumping and storage unit is continuous in reactive power support and high in response speed in the process from the power generation working condition to the phase modulation working condition.

The present disclosure discloses a control circuit and a control method for a multiphase power supply and the multiphase power supply. The control circuit includes a current reference signal generator and a controller. The current reference signal generator is configured to adjust a first compensation signal according to a first scaling factor and a first voltage signal, so that the first compensation signal follows the first voltage signal in a steady state, and a current reference signal is obtained according to the first compensation signal and the first voltage signal. The controller is configured to obtain a control signal for each phase power conversion circuit according to the current reference signal to control each phase power conversion circuit to provide a power output to a load. The present disclosure can improve a phase-conversion stability of the multiphase power supply, and can achieve fast and accurate control of the multiphase power supply.

The present invention provides a highly efficient seawater treatment method, belonging to the technical field of seawater treatment. Specifically, an MBR membrane is prepared using polyethersulfone as a main material through a phase conversion method. The obtained MBR membrane has uniform pore size, good surface hydrophilicity, strong pollution resistance, good antibacterial properties, good adhesion between the support layer and the separation layer, and a long service life. The MBR membrane is used for seawater treatment, which can not only effectively remove organic matter such as COD and BOD, ammonia nitrogen, heavy metal ions, etc. in seawater, but also the seawater treatment method is mature, stable, and has good controllability, and is suitable for large-scale industrial applications.

According to one embodiment of the present disclosure, there is provided a phase conversion device including: at least one base portion provided to extend in a longitudinal direction and having a first circuit pattern formed on one surface; a pair of ground walls extending from both lateral sides of each of the at least one base portion in a direction parallel to a height direction perpendicular to the at least one base portion; a pair of pattern walls provided so as to protrude from one surface of each of the at least one base portion in a direction parallel to the height direction, at least one surface of each of the pair of pattern walls having a second circuit pattern formed thereon, the second circuit pattern being electrically connected to the first circuit pattern; and a pair of dielectrics provided to be movable in a direction parallel to the longitudinal direction, at least a portion of each of the pair of dielectrics being disposed between each of the pair of ground walls and each of the pair of pattern walls.

A Fourier-based semantic data augmentation method using an uncertainty guide, and an apparatus therefor are disclosed. The Fourier-based semantic data augmentation method using an uncertainty guide comprises the steps of: applying an input image to an augmentation module so as to convert the input image into a frequency domain, and then generating a context-augmented image through amplitude and phase conversion; applying a Bezier transformation result on the basis of the input image and an input mask to the augmentation module so as to convert same into the frequency domain, and then generating a position-augmented image through amplitude and phase conversion; applying the context-augmented image and the position-augmented image to segmentation models so as to generate each of a context uncertainty map and a position uncertainty map; generating an uncertainty guide map by fusing the context uncertainty map and the position uncertainty map; and generating a mutual augmentation image by using the context-augmented image, the position-augmented image and the uncertainty guide map.

The disclosure discloses a chemical-shift-encoded imaging method and apparatus based on phase unwrapping, and a device. Comprises: performing phase conversion on the phasor candidate solution for the purpose of enabling a difference between a correct solution and an inverse decomposition solution of the phasor candidate solution to be within a set range, and on the basis of a phase unwrapping method, performing determination to obtain an intermediate phasor solution; determining a true phase of the intermediate phasor solution, and converting the true phase to a phasor candidate solution space to determine a target phasor solution; and on the basis of the target phasor solution, determining a first chemical component signal and a second chemical component signal, and on the basis of the first chemical component signal and / or the second chemical component signal, performing chemical-shift-encoded imaging.

The present invention relates to a signal design technology immune to phase distortion and may provide a method of a transmitter, the method comprising the steps of: modulating a source bit stream to be transmitted to a receiver to generate a first symbol block; inserting at least one pilot into the first symbol block to generate a second symbol block; accumulatively linearly encoding the second symbol block to generate a third symbol block; performing real number phase transformation for the third symbol block to generate a first signal transformed into a phase value; adding a cyclic prefix (CP) to the first signal to generate a second signal; and wirelessly transmitting the second signal to the receiver.

The invention provides a manufacturing method of a semiconductor device, which adopts n-type ions of which the atomic weight is greater than that of Ge to replace phosphorus ions injected in an nMOS (n-channel metal oxide semiconductor) region source and drain and ions injected in a pre-amorphization manner in the prior art, so that an n-type source and drain injection region in an amorphous silicon state can be formed, the pre-amorphization injection in the prior art is omitted, the process is simplified, and the manufacturing cost is reduced. The process cost is reduced. Compared with pre-amorphization injection of Ge and C plasmas in the prior art, injection of the n-type ions with the atomic weight larger than that of Ge is more beneficial to increase of multiple crystal grain intersection points, the crystal phase transition temperature of cobalt silicide in an nMOS region can be reduced, and on the basis that the thermal stability of a pMOS region is not sacrificed, the crystal phase transition temperature of the cobalt silicide in the nMOS region can be reduced. The method is compatible with the requirement difference of the nMOS region and the pMOS region on the formation of the cobalt silicide and the heat treatment temperature of the cobalt silicide in the phase conversion stage from the high resistance to the low resistance, avoids the problem caused by the requirement difference, and can improve the resistance of the device. And the annealing activation process after the subsequent source-drain ion implantation is carried out after the cobalt silicide is formed, so that the performance of the device can be further improved.

The application provides a double Buck-Boost conversion device, which comprises a circuit board and three-phase conversion units arranged on the circuit board, the direct current side of each phase conversion unit is connected with a direct current source, and the alternating current side of each phase conversion unit is connected with a three-phase alternating current source; the circuit board is divided into three types of regions according to dv / dt, and the signal lines of bus capacitors, switch units, alternating current inductors and filter capacitors and other devices are divided into dynamic signals and static signals according to the type of emitted signals, and then the signal lines are routed on the static region, the dynamic region and the dynamic-static combined region of the circuit board, so that the layout of the conversion circuit is optimized, the interlayer parasitic capacitance is reduced, and the electromagnetic radiation is optimized.

Provided is a high-frequency power supply device and an output control method thereof, capable of reducing ripple when converting input from a three-phase AC power supply to DC and capable of performing output control in a high-frequency band. A high-frequency power supply device includes an AC-DC converter that converts input from a three-phase AC power supply to DC and a high-frequency amplifier that includes a plurality of FET elements and outputs high-frequency AC power, wherein the output of the AC-DC converter is directly input to the high-frequency amplifier, and the high-frequency power supply device further includes a phase conversion circuit that provides a phase difference that cancels out fluctuation components included in DC to gate signals input to the plurality of FET elements. The input from the three-phase AC power supply is converted to DC and directly input to the high-frequency amplifier, and switching is performed by imparting a phase difference that cancels out fluctuation components included in DC to gate signals input to the plurality of FET elements, thereby generating high-frequency AC power.

According to an embodiment of the present disclosure, provided is a phase shifter comprising: at least one base panel extending in a longitudinal direction; at least one wall panel extending from at least one of both opposing sides in a transverse direction of each of the at least one base panel in a direction parallel to a height direction perpendicular to the at least one base panel; at least one support body fixed to one surface of each of the at least one base panel; at least one feed line supported by the at least one support body so as to be spaced apart from one surface of each of the at least one base panel in the height direction; and at least one dielectric configured to be movable in a direction parallel to the longitudinal direction, wherein at least a portion of each of the at least one dielectric is disposed between each of the at least one wall panel and each of the at least one feed line.

The invention relates to the field of organic light-emitting materials, and mainly relates to a piezochromic organic light-emitting material and a preparation method and application thereof. A preparation method of the piezo-chromic organic light-emitting material comprises the following steps: synthesizing an intermediate; mixing the intermediate, 4-(diphenylamino) phenylboronic acid, tetrakis (triphenylphosphine) palladium, tetrabutylammonium bromide, alkali and a reaction solvent, and performing heating reaction to obtain a second mixture; and extracting, drying, concentrating and purifying the second mixture to obtain the piezochromic organic luminescent material. The piezochromic luminescent material disclosed by the invention has the characteristics of single force stimulation induction of multicolor change, piezoluminescence enhancement and crystalline phase-to-crystalline phase conversion function; the luminescent material also has the advantages of low raw material cost, simplicity and convenience in synthesis, wide application environment, multicolor reversible switching and high contrast ratio, is an excellent force stimulation response type luminescent material, and can be used for pressure detection, sensors, information storage devices, anti-counterfeiting materials, memory materials or biological probes.

A circulation device (100) for a two-phase cooling system comprises: a liquid feed pump (10); an inlet-side connection part (15) that is in thermal contact with a battery (81) of a moving body (80) and can be attached to and detached from a refrigerant inlet of an evaporator (60) into which flows a liquid-phase refrigerant having a boiling point lower than the usage temperature of the battery (81); an outlet-side connection part (16) that can be attached to and detached from a refrigerant outlet of the evaporator (60); and a phase conversion unit (11) that converts a gas-phase refrigerant flowing out of the evaporator (60) into a liquid phase.

An antenna element receives a first radio wave and outputs a transmission signal, and receives a second radio wave and outputs a reception signal. A phase conversion unit applies a predetermined phase shift amount to a signal to be input and then output the signal. A switch connects the antenna element to one of the phase conversion unit and external receiver. When the first radio wave enters the antenna, the switch connects the antenna element to the phase conversion unit, and the transmission signal to which the predetermined phase shift amount has been applied is radiated from the antenna element. A third radio wave radiated from each of a plurality of RIS elements is deflected in a predetermined direction. When the second radio wave enters the antenna, the switch connects the antenna element to the external receiver, and the external receiver receives the reception signal.