8 results about "High rate" patented technology

The application discloses a growth method for improving pit defects of a silicon carbide epitaxial wafer, and comprises the following steps: cleaning a silicon carbide substrate and placing the substrate in an epitaxial reaction chamber, introducing hydrogen, and performing high-temperature annealing treatment; increasing the hydrogen flow and the reaction chamber temperature, and performing hydrogen etching; reducing or maintaining the reaction chamber temperature, introducing a carbon source and a silicon source, and growing a buffer layer on the substrate surface; maintaining the gas introduction, increasing the reaction chamber temperature, and growing a gradient layer on the buffer layer; reducing the reaction chamber temperature, simultaneously opening a center gas source and an edge gas source, and growing a base epitaxial layer on the gradient layer; maintaining the reaction chamber temperature, adjusting the edge gas source flow to form a gradient flow, and growing a flat epitaxial layer on the base epitaxial layer. Through the substrate pretreatment-low rate epitaxy-high rate flat epitaxy, combined with the gradient process filling process, the application realizes the step-by-step filling and surface flattening of the pit defects, and effectively reduces the number of Pit defects and the epitaxial thickness uniformity.

A mixed-item sorting system and a method for sorting the volumetric flow of mixed items of various sizes and shapes to separate destinations includes at least two volumetric flow separators configured to receive a volumetric flow of mixed items and arrange the items into respective first and second single-row flows. A first item inlet arranges the first item flow from one of the separators into a first separate item flow, and a first item sensor detects the identity and weight of each item. A second item inlet arranges the single-row item flow from the other separator into a second separate item flow, and a second item sensor detects the identity and weight of each item in the second single-row flow.A combiner combines the first and second single-row streams of items into a third single-row stream. A classifier receives the mixed third single-row stream of items and sorts the items into separate destinations.

This invention discloses a method and system for dynamic settlement control of soft soil culvert bridges based on Internet of Things (IoT) monitoring, belonging to the field of IoT monitoring technology. The method includes the following steps: constructing a settlement motion state machine for each settlement monitoring point; constructing a sliding verification window for each settlement monitoring point; calculating the average rate of the window; comparing the average rate of the window with the average rate of the previous window corresponding to the steady state within the settlement motion state machine by a factor of change to determine if it is a false rate; if determined to be a false rate, forcibly setting the settlement motion state machine to a transient state, and outputting the arithmetic average rate of the independent sliding verification window to the early warning control logic to remove the degradation restriction. This invention, by constructing a settlement motion state machine, a sliding verification window, and performing degradation processing, solves the problem in existing technologies where supplementary data is misjudged as instantaneous high rates, leading to unnecessary triggering of load limits or pole drops.

The application provides a kind of drawing automatic auditing method, device and electronic equipment.The method is by simultaneously sending CAD vector geometric feature tensor G and the process feature tensor P of process card file into multi-head cross attention network, realize the joint modeling of millimeter level geometric precision and natural language process constraint, both can realize the automatic auditing of drawing, improve the problem of low efficiency, high rate of missed judgment of manual auditing drawing, also can completely get rid of the path dependence of traditional OCR and rule base.And adopt the strategy of elastic weight consolidation, only fine-tune network last two layers, continuously absorb user correction instruction, further reduce the rate of missed judgment of the method.

This disclosure provides for devices, methods, and systems for immobilizing partitions of a partition matrix, where partitions are rapidly generated from a sample, and for immobilizing a set of targets within a matrix, where examples of the matrix are optically clear. Embodiments of methods involve partition generation within a collecting container at a high rate (e.g., of at least 1 million partitions per minute, etc.), each of the partitions including an aqueous mixture. Embodiments of methods also involve stabilizing positions of targets within a matrix within a collecting container and performing reactions within the matrix at a temperature below the melting temperature of the matrix. Upon immobilization, readout of signals from targets within such partitions and / or the matrix can still be achieved in accordance with various assays.

This utility model relates to the field of power supply equipment technology, and in particular to a high-rate discharge lead-acid battery grid, including a frame and lugs connected to the frame, and multiple vertical ribs; the upper ends of each vertical rib approach the lugs and are fixedly connected to them; and the lower ends of each vertical rib are radially spaced on the frame; the frame has multiple first mounting grooves spaced apart for corresponding insertion of the lower ends of each vertical rib; when the vertical ribs expand due to heat, the lower ends of the vertical ribs slide within the first mounting grooves; and when the vertical ribs cool and contract, the lower ends of the vertical ribs do not detach from the openings of the first mounting grooves. This high-rate discharge lead-acid battery grid can effectively reduce the resistance of the lead-acid battery grid, improve the conductivity of the lead-acid battery grid, and prevent the lead-acid battery grid from arching due to thermal expansion and contraction.

This invention discloses a transient control method for an asymmetric multiphase buck converter based on minimum-time control. Addressing the coupling bottleneck between steady-state and transient performance in traditional converters, this invention introduces a joint minimum-time control strategy for the main and auxiliary phases within an asymmetric architecture comprising a large-inductance main phase and a small-inductance auxiliary phase. When a step change occurs in the load current, based on the principle of capacitor charge balance and with the core constraint that the net charge absorbed by the capacitor at the end of the transient is zero, the optimal adjustment time for single-cycle oscillation-free recovery is directly algebraically calculated, and the target on or off time of the main and auxiliary phase switches is accurately calculated accordingly. This invention effectively utilizes the high rate of change of the auxiliary phase current, drastically compressing transient regulation to be completed within one control cycle, achieving time optimization of the load jump trajectory, and significantly reducing the dynamic deviation of the output voltage.