Abstract: The present application provides a pole piece, a preparation method thereof and a battery. The pole piece includes a current collector and a composite layer, and the composite layer is disposed on the current collector. The composite layer includes a first active material layer, and the first active material layer has a first surface away from the current collector. A recess extending from the first surface to inside of the first active material layer is defined on the first active material layer.

Abstract: A system comprising a memory device and a processing device, the processing device operatively coupled with the memory device to perform operations. The processing device detects a trigger for a media management operation associated with a block of the memory device, wherein the block comprises a plurality of wordlines (WLs). The processing device identifies a first subset of the plurality of WLs, wherein the first subset of the plurality of WLs fails to satisfy a reliability threshold criterion. The processing device performs the media management operation on a set of memory cells associated with the first subset.

Abstract: A pipeline-integrated measuring device includes a thrust fixed frame, a measuring fixed frame, a measuring moving frame and strain spokes. The measuring fixed frame is fixed on the thrust fixed frame and is connected to the measuring moving frame by means of the strain spokes. A first propellant supply connecting nozzle is arranged on the measuring fixed frame and is used to be in communication with a propellant supply pipeline on a test bench; propellant supply channels are arranged in the strain spokes; a second propellant supply connecting nozzle is arranged on the measuring moving frame and is used to be connected to an engine inlet pipeline; first sensors, second sensors and third sensors are arranged on the strain spokes; and the first sensors, the second sensors and the third sensors are arranged at maximum strain force positions in axial directions and lateral directions of the strain spokes respectively.

Abstract: The present disclosure provides a developing cartridge. The developing cartridge includes a casing including a first side and a second side arranged oppositely in a first direction and including a third side and a fourth side arranged oppositely in a second direction intersecting the first direction; a developing roller positioned at the third side and rotatable around a first axis extending in the first direction; a coupling positioned at the first side for rotation; a light-emitting part capable of emitting light, where the light-emitting part is closer to the fourth side than the developing roller in the second direction; and an abutting part positioned at the second side.

Abstract: A developing cartridge includes a casing, configured to accommodate developer therein, the casing having a first side and a second side arranged oppositely in a first direction, and a third side and a fourth side arranged oppositely in a second direction, the first direction and the second direction intersecting; a developing roller rotatable about a first axis extending in the first direction and positioned at the third side; a coupling rotatable about a second axis extending in the first direction and positioned at the first side; a storage medium including an electrical contact surface, the electrical contact surface being positioned at the first side; a separation member protruding in the first direction, the separation member receiving a separation force to cause the casing to move, and the separation member being positioned at the first side; and a first abutting member being positioned at the second side.

Abstract: A developing cartridge can be detachably installed on a drum cartridge in an image forming apparatus, where a mounting cavity is provided on the drum cartridge and a photosensitive drum and a first groove wall are provided in the mounting cavity. The developing cartridge includes: a casing having a first side and second side arranged oppositely along a first direction, where the casing can be installed in the mounting cavity along a second direction; a developing roller rotatably arranged in the casing, where the rotation axis of the developing roller is parallel to the first direction; and a separator including a force-receiving part, where a first inclined surface is formed on the force-receiving part, and the first inclined surface receives a separation force provided by the image forming apparatus and drives the casing to move in a direction away from the photosensitive drum.

Abstract: The invention relates to a hydroxyl-functional polyester containing a perfluoropolyether block prepared by a method comprising the following steps: a) subjecting a carboxyl-terminated perfluoropolyether C to a reaction with an epoxy-functional compound D, and b) subjecting the reaction product of step a) to a reaction with a lactone E. The polyester thus prepared can be used in a coating composition, comprising further (b) an OH-functional or epoxy-functional resin, and (c) a hardener comprising groups reactive to the OH or epoxy-functional groups of resin (b).

Abstract: A crude oil transportation drag-reducing agent testing loop test bench and its use method is provided. The test bench includes a gas supply and pressurization system, a pressurized storage tank system, a pipeline testing system, a reflux and circulation system, a valve switching system, a heating and insulation testing system, and a sensor testing system. The test bench can evaluate the performance of drag-reducing agents in transportation pipeline devices within a laboratory setting, and further inspect, evaluate, and test the effective performance of different proportions and types of drag-reducing agents. The test bench also ensures the safety of experimental test, reduces testing costs, avoids the production of large amounts of waste liquid, and minimizes test space.

Abstract: A developing cartridge includes a casing, configured to accommodate developer therein, the casing having a first side and a second side arranged oppositely in a first direction, and a third side and a fourth side arranged oppositely in a second direction, the first direction and the second direction intersecting; a developing roller rotatable about a first axis extending in the first direction and positioned at the third side; a coupling rotatable about a second axis extending in the first direction and positioned at the first side; a storage medium including an electrical contact surface, the electrical contact surface being positioned at the first side; a separation member protruding in the first direction, the separation member receiving a separation force to cause the casing to move, and the separation member being positioned at the first side; and a first abutting member being positioned at the second side.

Abstract: A developing cartridge includes: a cartridge body for accommodating developers; a driving part at a first end in a first direction; a developing roller rotatable about a rotation axis extending along the first direction and positioned at a third end in a second direction; a storage medium for storing information; an electrical contact surface electrically connected to the storage medium and fixed relative to the cartridge body, and a lifting element configured to lift up the cartridge body in the third direction. The electrical contact surface is positioned at the first end in the first direction and is farther away from the developing roller relative to the driving part. The lifting element is farther away from the developing roller in the second direction away from the driving part.

Abstract: A temperature testing system for hydrate nucleation and phase transition based on infrared imaging is provided and includes a gas-liquid supplying device, a refrigeration device, an infrared imaging device, a hydrate generation device, and a data acquisition device. The gas-liquid supplying device is configured to provide a gas and a liquid required for synthetizing a hydrate. The refrigeration device is configured to provide a temperature environment required for synthetizing the hydrate. The infrared imaging device is configured to in-situ measure temperature changes caused during a formation of the hydrate. The hydrate generation device is configured to provide a visual growth environment for nucleation and phase transition of the hydrate. The data acquisition device is configured to collect a temperature, a system pressure, and infrared imaging data from the hydrate generation device.

Abstract: The invention relates to a diagnostic method and system for drip irrigation cotton with nitrogen nutrient deficit. First, the sensitive leaf layer of cotton is determined according to the growth stage of cotton, and the spectral reflectance and biomass of each functional leaf in the sensitive leaf layer are collected to calculate average spectral reflectance of the sensitive leaf layer and the maximum leaf biomass. Then, the critical nitrogen concentration was calculated according to the maximum leaf biomass. Finally, the nitrogen nutrition index of cotton is calculated according to the nitrogen concentration and the critical nitrogen concentration. The nitrogen nutrition index is used to characterize the abundance and deficiency of nitrogen nutrition in cotton, so as to determine the abundance and deficiency of nitrogen nutrition in cotton, which can reduce the calculation amount of nitrogen nutrition index, diagnose the abundance and deficiency of nitrogen nutrition in drip irrigation cotton.

Abstract: An in-situ observation device for gas hydrates includes a reactor, which includes a visual tube, a pulling rod, a temperature-controlled seed crystal rod and a spiral adjuster. An upper end and a lower end of the visual tube are respectively equipped with an upper end cap and a lower end cap. The upper end cap defines an air inlet, and the lower end cap defines a liquid inlet. An upper end of the temperature-controlled seed crystal rod is connected to an adjusting flange. The adjusting flange is connected to the spiral adjuster. A lower end of the temperature-controlled seed crystal rod hermetically passes through the upper end cap and is located in the visual tube. The temperature-controlled seed crystal rod defines a cooling liquid channel, and a cooling liquid inlet and a cooling liquid outlet, a seed crystal rod liquid inlet and a seed crystal rod outlet.

Abstract: A monitoring and evaluation method for comprehensive evaluation index of machine-harvested cotton defoliation effect and system thereof relates to the field of monitoring and evaluation of cotton-harvested indexes. The RGB images of the machine-harvested cotton canopy are firstly acquired to extract visible-light vegetation index features, color component features and texture features of machine-harvested cotton canopy RGB images; the visible-light vegetation index features, color component features and texture features are input to the trained comprehensive evaluation model of machine-harvested cotton defoliation effect, to output the defoliation effect evaluation value; finally, the harvesting timing of machine-harvested cotton is determined according to the defoliation effect evaluation value.

Abstract: A developing cartridge includes: a cartridge body for accommodating developers; a driving part at a first end in a first direction; a developing roller rotatable about a rotation axis extending along the first direction and positioned at a third end in a second direction; a storage medium for storing information; an electrical contact surface electrically connected to the storage medium and fixed relative to the cartridge body, and a lifting element configured to lift up the cartridge body in the third direction. The electrical contact surface is positioned at the first end in the first direction and is farther away from the developing roller relative to the driving part. The lifting element is farther away from the developing roller in the second direction away from the driving part.

Abstract: Disclosed is a multi-dimensional analysis method for a tripping risk of a whole transmission line due to a lightning shielding failure. A quantity of thunderstorm days, a tower size, a terrain proportion, an altitude, and insulation configuration data are collected for a transmission line for which a tripping risk due to a lightning shielding failure needs to be analyzed, and a striking distance, an exposure distance, a lightning resisting level of the line after altitude factor correction, and a lightning shielding failure risk of a single-base tower are calculated in turn. Characteristics of a lightning shielding failure under different nominal heights, quantities of thunderstorm days, and terrains are studied. Representative combination conditions are selected to calculate a tripping risk of a typical tower due to the lightning shielding failure. A weight coefficient is extracted, to calculate a tripping risk of the whole line due to the lightning shielding failure.

Abstract: A low-frequency acoustic wave generating device for detecting pipeline blockage related to the technical field of pipeline detection is provided and includes a sealing shell configured to be communicated with a pipeline, a sealed pressure environment is formed inside the sealing shell. A low-frequency electroacoustic transducer is disposed inside the sealing shell, the low-frequency electroacoustic transducer is connected to a signal generator and is configured to transmit an acoustic wave into the pipeline. The device transmits the acoustic wave signals to a high-pressure gas pipeline, combined with a signal generator capable of generating any waveform, thereby emitting any waveform of acoustic wave signal into the pipeline. The use of acoustic waves with special markings and characteristics for pipeline blockage detection can improve the anti-noise interference ability of the acoustic wave detection, and improve the precision of the detection.

Abstract: The invention relates to a diagnostic method and system for drip irrigation cotton with nitrogen nutrient deficit. First, the sensitive leaf layer of cotton is determined according to the growth stage of cotton, and the spectral reflectance and biomass of each functional leaf in the sensitive leaf layer are collected to calculate average spectral reflectance of the sensitive leaf layer and the maximum leaf biomass. Then, the critical nitrogen concentration was calculated according to the maximum leaf biomass. Finally, the nitrogen nutrition index of cotton is calculated according to the nitrogen concentration and the critical nitrogen concentration. The nitrogen nutrition index is used to characterize the abundance and deficiency of nitrogen nutrition in cotton, so as to determine the abundance and deficiency of nitrogen nutrition in cotton, which can reduce the calculation amount of nitrogen nutrition index, diagnose the abundance and deficiency of nitrogen nutrition in drip irrigation cotton.

Abstract: The disclosure relates to the technical field of semiconductors, and discloses a method for manufacturing a resonator. The method includes: a substrate is pretreated to change a preset reaction rate of a preset region part of the substrate, so that the preset reaction rate of the preset region part is higher than that of a region outside the preset region part; a preset reaction is performed to the substrate to form a sacrificial material part including an upper half part above an upper surface of the substrate and a lower half part below a lower surface of the substrate; a multilayer structure is formed on the sacrificial material part, and includes a lower electrode layer, a piezoelectric layer and an upper electrode layer from bottom to top; and the sacrificial material part is removed.

Abstract: The present invention discloses a multi-energy complementary system for a co-associated abandoned mine and a use method. The multi-energy complementary system for a co-associated abandoned mine includes a mining mechanism, a grouting mechanism and an energy mechanism. In the present invention, the mining of coal and uranium resources is realized through the mining mechanism, the subsidence and seepage reduction of the stratum is realized through the grouting mechanism, and the effective utilization of waste resources is realized through the energy mechanism. Finally, with the efficient cooperation of the three mechanisms, safe and efficient development and utilization of co-associated resources in the full life cycle are realized, and the purposes of green and efficient mining of coal and uranium resources and secondary development of a coal seam goaf are achieved, thereby facilitating the realization of dual-carbon goals and the development of low-carbon green energy.