Abstract: An effective capacity estimation method and system for super capacitor energy storage systems are provided. The method includes: establishing a nonlinear electrical model of supercapacitor cell and an equivalent electrical model of a supercapacitor system; obtaining the first test data by charging the supercapacitor cell; based on the first test data, setting the initial value of parameters of the nonlinear electrical model of the supercapacitor cell by a preset algorithm; using a least-square method to identify the parameters of the nonlinear electrical model of the supercapacitor cell; obtaining electrical parameters of the equivalent electrical model of the supercapacitor system except the connection resistance parameters, carrying out a charging test of the supercapacitor system to obtain the connection resistance parameters, and estimating an effective capacity of the supercapacitor energy storage system based on the equivalent electrical model of the supercapacitor system after parameter identification.

Abstract: A system includes an electric field therapy device and two pairs of insulated electrodes electrically connected to the device. The device includes an MCU control unit, a direction control unit, a DC power control unit, and an AC voltage control unit. The control unit is configured to control the AC voltage control unit to generate an alternating electrical signal with an AC voltage. The control unit is further configured to drive the direction control unit to apply the alternating electrical signals received by the AC voltage control unit to different pairs of insulated electrodes, to achieve the switching of the alternating electrical signal between the pairs of insulated electrodes. The control unit is further configured to, when the alternating electrical signal is being switched, control the DC power control unit to increase or decrease the AC voltage in a manner that the voltage change per unit time is constant.

Abstract: The present application provides a tumor electric field treatment system. The tumor electric field treatment system comprises an electric field treatment device and two pairs of the insulated electrodes electrically connected to the electric field treatment device. The AC signal controller is configured to generate control signals with respective time periods and at least two cyclically switched output states. The AC signal generator is configured to generates an alternating electric signal, and according to the output state of the control signals generated by the AC signal controller, cyclically and alternately apply the generated alternating electric signal to the insulated electrodes in pairs, so as to alternately generate alternating electric fields between the two pairs of insulated electrodes.

Abstract: A tumor treating fields system and an associated insulated electrode includes at least one electrode sheet applying an alternating electric signal; and an electrical connector detachably connected with the sheet, the sheet includes an individual electrode unit and a first wire connected with the electrode unit, the sheet is detachably connected with the electrical connector through the first wire. The sheet of the insulated electrode is detachably connected with the electrical connector through the first wire, and the sheet includes one electrode unit. When the electrode unit is damaged and is nonfunctional, only the damaged sheet is replaced, reducing the cost of tumor treatment. The electrode units are combined in quantity or adjusted in position according to a patient's tumor site, position and tumor size, to ensure the coverage area for tumor treating fields therapy performed by the insulated electrodes, enhancing the electric field strength for tumor treating fields therapy.

Abstract: A tumor treating fields system includes an electric field generator, generating a plurality of alternating current signals; at least two pairs of insulated electrodes, each of the electrodes includes a plurality of electrode sheets, and an electrical connector with a switching circuit including switches that are respectively connected with the plurality of sheets, each sheet has a temperature sensor; and an adapter, transmitting the plurality of alternating current signals to the respective switch of the switching circuit of the corresponding electrode, the switch individually controls an electrical connection of the adapter to the corresponding sheet to selectively apply the alternating current signals. The present system individually controls each sheet electrically connected with the switching circuit to selectively apply the alternating current signals to the corresponding sheet.

Abstract: A tumor treating fields system includes an electric field generator and at least two pairs of insulated electrodes, the electric field generator includes an alternating current signal generator, generating at least two alternating current signals, the at least two alternating current signals are output to the at least two pairs of insulated electrodes, to generate alternating electric fields in at least two directions between the at least two pairs of insulated electrodes; and a signal controller, obtaining temperature information of the insulated electrodes, and individually control output of each alternating current signal based on the temperature information, to selectively apply to corresponding insulated electrodes an alternating current signal that generates a corresponding alternating electric field of the alternating electric fields in the at least two directions.

Abstract: The invention relates to an energy management framework and method for rail transit energy storage, which relates to the energy management field of rail transit energy storage. The energy management framework comprises central-level controller, several station-level controllers, and several device-level controllers; among them, the central-level controller is wirelessly connected to all station-level controllers; a station-level controller is connected to a device-level controller by wired communication. The invention realizes the energy management of rail transit energy storage based on the above three-level energy management framework (center level, station level and device level structure).

Abstract: The invention discloses an optical imaging system and an imaging method regulated based on a spatial coherence structure, including the steps of: building a 4f imaging system; detecting, by a first optical detector, the shape of the spectrum domain obstacle in the 4f imaging system; designing a spatial coherence structure of the incident beam based on the shape of the spectrum domain obstacle, so that all the modes of the incident beam can pass through the opening in the obstacle; and placing an object to be detected in the optical path and detecting, by the second optical detector, the optical imaging information of the object to be detected. According to the present invention, in the case where the frequency plane of the 4f optical imaging system is partially occluded, imaging without speckles is enabled, utilization of the systematic light is substantially improved, and the signal-to-noise ratio in imaging is improved.

Abstract: The present application discloses a method and a model for controlling an energy storage system for rail transit, a device, and a storage medium. The method includes: determining an offline charging-discharging action according to a state of an energy storage system based on an offline algorithm; determining an online charging-discharging action according to the state of the energy storage system based on a deep reinforcement learning algorithm; acquiring a fusion ratio of the offline charging-discharging action to the online charging-discharging action according to a communication delay amount and a delay degree; and fusing the offline charging-discharging action and the online charging-discharging action according to the fusion ratio and outputting a fusion result to the energy storage system.

Abstract: A control method, device, apparatus and storage medium for a supercapacitor energy storage device is provided, where the method includes: collecting life characterization parameters of the supercapacitor energy storage device and performing life evaluation to obtain a life evaluation result, inputting the life evaluation result into a constructed fuzzy rule base, and outputting a constraint condition adjustment parameter; obtaining a constraint condition according to the constraint condition adjustment parameter, and optimizing control parameters using a genetic algorithm in conjunction with an optimized objective function to obtain first control parameters; and controlling charging and discharging currents of the supercapacitor energy storage device using a droop control method according to the first control parameters.

Abstract: An effective capacity estimation method and system for super capacitor energy storage systems are provided. The method includes: establishing a nonlinear electrical model of supercapacitor cell and an equivalent electrical model of a supercapacitor system; obtaining the first test data by charging the supercapacitor cell; based on the first test data, setting the initial value of parameters of the nonlinear electrical model of the supercapacitor cell by a preset algorithm; using a least-square method to identify the parameters of the nonlinear electrical model of the supercapacitor cell; obtaining electrical parameters of the equivalent electrical model of the supercapacitor system except the connection resistance parameters, carrying out a charging test of the supercapacitor system to obtain the connection resistance parameters, and estimating an effective capacity of the supercapacitor energy storage system based on the equivalent electrical model of the supercapacitor system after parameter identification.

Abstract: The present invention provides an SSR marker for detecting broad bean varieties resistant to broad bean weevil and its application. The application of the SSR marker provided by the present invention to detect broad bean varieties resistant to broad bean weevil has the advantages for the detection method in reliability, simplicity and practicability. Therefore, the SSR marker provided by the present invention has important application prospects in the identification of broad bean germplasm resources and molecular marker-assisted breeding selection.

Abstract: The invention discloses an optical imaging system and an imaging method regulated based on a spatial coherence structure, including the steps of: building a 4f imaging system; detecting, by a first optical detector, the shape of the spectrum domain obstacle in the 4f imaging system; designing a spatial coherence structure of the incident beam based on the shape of the spectrum domain obstacle, so that all the modes of the incident beam can pass through the opening in the obstacle; and placing an object to be detected in the optical path and detecting, by the second optical detector, the optical imaging information of the object to be detected. According to the present invention, in the case where the frequency plane of the 4f optical imaging system is partially occluded, imaging without speckles is enabled, utilization of the systematic light is substantially improved, and the signal-to-noise ratio in imaging is improved.

Abstract: Provided are a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display element. The liquid crystal alignment agent at least comprises one of a polyamic acid solution and a polyimide solution. The polyamic acid solution is obtained by means of a polymerization reaction of diamine compound component A and dianhydride compound component B in a solvent, and the polyimide solution is obtained from the polyamic acid solution via a dehydration imidization treatment. The diamine component A at least comprises one of the diamine compounds represented by “formula 1”. The obtained liquid crystal alignment agent has a better liquid crystal alignment capability, an excellent effect on image sticking, and the effect that decomposition products resulting from light alignment are easy to remove.

Abstract: Provided are a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display element. The liquid crystal alignment agent at least comprises one of a polyamic acid solution and a polyimide solution. The polyamic acid solution is obtained by means of a polymerization reaction of diamine compound component A and dianhydride compound component B in a solvent, and the polyimide solution is obtained from the polyamic acid solution via a dehydration imidization treatment. The diamine component A at least comprises one of the diamine compounds represented by “formula 1”. The obtained liquid crystal alignment agent has a better liquid crystal alignment capability, an excellent effect on image sticking, and the effect that decomposition products resulting from light alignment are easy to remove.

Abstract: A coaxial capacitive sensor includes a sensor lubricating oil inlet and a sensor lubricating oil outlet. The sensor lubricating oil inlet and the sensor lubricating oil outlet separately communicate with the interior of the coaxial capacitive sensor. The interior of the coaxial capacitive sensor is provided with a center bearing, electrode support insulating substrates, and electrode plates. The plurality of electrode support insulating substrates and the center bearing divide the interior of the coaxial capacitive sensor into a plurality of detection sub-spaces, and the electrode plates are attached onto the electrode support insulating substrates, respectively. The coaxial capacitive sensor provided by the present invention can be arranged in a lubricating oil pipeline to avoid the influences of environmental factors on the testing results, and can on-line detect the characteristics of the lubricating oil abrasive particles efficiently.

Abstract: A coaxial capacitive sensor includes a sensor lubricating oil inlet and a sensor lubricating oil outlet. The sensor lubricating oil inlet and the sensor lubricating oil outlet separately communicate with the interior of the coaxial capacitive sensor. The interior of the coaxial capacitive sensor is provided with a center bearing, electrode support insulating substrates, and electrode plates. The plurality of electrode support insulating substrates and the center bearing divide the interior of the coaxial capacitive sensor into a plurality of detection sub-spaces, and the electrode plates are attached onto the electrode support insulating substrates, respectively. The coaxial capacitive sensor provided by the present invention can be arranged in a lubricating oil pipeline to avoid the influences of environmental factors on the testing results, and can on-line detect the characteristics of the lubricating oil abrasive particles efficiently.

Abstract: A recoverable instant thickening acid and its reusing method is usable for the recycling and reusing of a gas well carbonate reservoir acidizing fluid and production stimulation operation. The recoverable instant thickening acid includes the following components in weight percentage: 1.5-3 parts of a thickener, 0.5-3 parts of potassium chloride and 100 parts of a hydrochloric acid solution, wherein the thickener is a mixture composed of a mass ratio of 40%-70% of N-lauryl-N?-hydroxyethyl-N?-hydroxypropyl ethylenediamine propionate or its derivatives, 4%-12% of ethanol and 18%-56% of water. With the thickening acid for performing an acidizing treatment, the residual acid solution can be re-prepared as a thickening acid for an acidizing treatment without a chemical treatment, assisting the green and environmentally friendly production and sustainable development of gas fields.

Abstract: A recoverable instant thickening acid and its reusing method is usable for the recycling and reusing of a gas well carbonate reservoir acidizing fluid and production stimulation operation. The recoverable instant thickening acid includes the following components in weight percentage: 1.5-3 parts of a thickener, 0.5-3 parts of potassium chloride and 100 parts of a hydrochloric acid solution, wherein the thickener is a mixture composed of a mass ratio of 40%-70% of N-lauryl-N?-hydroxyethyl-N?-hydroxypropyl ethylenediamine propionate or its derivatives, 4%-12% of ethanol and 18%-56% of water. With the thickening acid for performing an acidizing treatment, the residual acid solution can be re-prepared as a thickening acid for an acidizing treatment without a chemical treatment, assisting the green and environmentally friendly production and sustainable development of gas fields.

Abstract: A heat dissipation device used for dissipating heat from an electronic device mounted on a printed circuit board (PCB), includes a heat sink contacting with the electronic device, a locking device mounted on the heat sink and securing the heat sink onto the PCB. The locking device comprises a supporting plate extending through the heat sink, two arms respectively and slidably fixed on two opposite ends of the supporting plate and two fastening devices respectively slidably fixed to the two arms. The two arms can move along a first direction about the heat sink, and the two fastening devices can move along a second direction about the arms, thereby aligning the two fastening devices with two through holes defined in the printed circuit board, respectively.