Abstract: Some embodiments of the disclosure describe an evaluation system based on analyte data including a memory storing a program, a display, and a processor. In some examples, the processor is configured to: receive analyte data during a predetermined time period from an object to be tested, acquire a plurality of analyte indicators different from each other based on the analyte data, normalize the plurality of analyte indicators to a predetermined range to acquire a plurality of normalized analyte indicators, plot a polygon pattern corresponding to the analyte data during the first time period as a target polygon pattern, plot a polygon pattern corresponding to the analyte data during the second time period as a reference polygon pattern, and take a line segment between a vertex and a center point as an axis, and display the target polygon pattern and the reference polygon pattern.

Abstract: An optical satellite remote sensing transfer calibration method based on near-space aerostat, including: performing a temporal-spatial matching between first observation image data of a target region collected by a benchmark radiometric payload and second observation image data of the target region collected by a satellite-borne payload, to obtain a plurality of matchups of observation image data (S1); obtaining an average radiance of the benchmark radiometric payload from a plurality of first observation image data (S2); obtaining an average DN captured by the satellite payload in the target region from a plurality of second observation image data (S3); obtaining a matching radiance for an observation band of the benchmark radiometric payload corresponding to the satellite payload based on the average radiance of the benchmark radiometric payload (S4); and obtaining a calibration coefficient of the satellite payload based on the matching radiance and the average DN (S5).

Abstract: A cascade-based power dissipation optimization method and system for an amplification circuit are provided. The method includes: S1, acquiring a relationship of power dissipation of an amplification circuit to input signal amplitudes and voltage gains by means of statistical analysis; and S2, designing an optimal cascade strategy for the amplification circuit according to the relationship of the power dissipation of the amplification circuit to the input signal amplitudes and the voltage gains, and adjusting the number of stages of the amplification circuit and a voltage gain of each stage of the amplification circuit so as to minimize total power dissipation of the amplification circuit.

Abstract: A power converter includes an electrical network including a plurality of intermediate nodes. Each intermediate node is configured to connect to one phase of an alternating current (AC) electrical power source, the electrical network is configured to convert AC electrical current to direct current (DC) electrical current, and the electrical network includes a plurality of electronic switches. The power converter also includes a DC link electrically connected to the electrical network; a pre-charge path electrically connected to the DC link, the pre-charge path including a pre-charge impedance; a control path electrically connected to one of the electronic switches, the control path including a relay; and a control system configured to analyze a 10 plurality of electrical measurements from the power converter to determine a status output; and determine whether to control the relay to change state based on the status output.

Abstract: An intelligent modeling method of a Selective Catalytic Reduction (SCR) reaction process of diesel vehicle exhaust includes the following steps: S1: acquiring a time sequence data set of an SCR reaction process of diesel vehicle exhaust for modeling, where the time sequence data set includes an input variable sequence and an output variable sequence; S2: selecting a multi-layer type-II fuzzy neural network as an SCR reaction process model of diesel vehicle exhaust based on the input variable sequence and the output variable sequence obtained in Si. The intelligent modeling method of the SCR reaction process of diesel vehicle exhaust can effectively model dynamic characteristics of the SCR reaction process such as nonlinearity, time delay and uncertain interference, and improve the accuracy, robustness and generalization ability of the SCR reaction process model.

Abstract: In one aspect, a power converter includes: an energy storage apparatus; an inverter electrically coupled to the energy storage apparatus; and a voltage boost system configured to: determine a modulation index based on a DC voltage of the energy storage apparatus and a target output voltage of the inverter; and determine whether the target output voltage is in a voltage boost region based on the modulation index; if the target output voltage is in the voltage boost region: determine an adjustment value based on the modulation index; and adjust one or more of the target output voltage and an associated output voltage phase angle based on the adjustment value.

Abstract: A network security protection method includes receiving a first data flow, where the first data flow includes a source Internet Protocol (IP) address and a destination IP address, where the source IP address is an IP address of a first electronic device, and where the destination IP address is an IP address of a first server, determining first device attribute information corresponding to the source IP address, determining second device attribute information corresponding to the destination IP address, and forwarding the first data flow when the first device attribute information matches the second device attribute information or blocking the first data flow when the first device attribute information does not match the second device attribute information.

Abstract: The present disclosure discloses a non-isolated LLC resonant converter, comprising a first switch network module, a second switch network module, a resonance network module, a transformer module, a rectification network module and an output module, wherein via signals under drive control input on the first switch network module, the second switch network module and the rectification network module, it is controlled to realize zero-voltage switching (ZVS) and zero-current switching (ZCS) of a switch in a resonant state, thereby reducing switching loss of a switch unit, improving electric energy conversion efficiency and reducing production cost and power density, wherein simultaneously a quantity of turns of a primary winding of a transformer is saved, a loss of the primary winding of the transformer is reduced, a manufacturing cost of the power converter is reduced, simultaneously, a space of a transformer winding is saved, and design requirements of smaller volume are realized.

Abstract: Disclosed in the present disclosure is a cooking device. The cooking device includes: a base; a cookware vessel rotatably arranged in the base; and at least one temperature measuring assembly arranged on the base, wherein the at least one temperature measuring assembly includes a first temperature measuring assembly, and the first temperature measuring assembly is arranged opposite an ingredient area of the cookware vessel. When the cooking device is in a cooking position, an area where an ingredient in the cookware vessel makes contact with the cookware vessel is the ingredient area. Therefore, a temperature difference between a measuring result and ingredient may be reduced, such that accuracy and stability of temperature measurement may be improved, and cooking quality may be improved.

Abstract: A page display method and device, electronic device and storage medium are provided. The page display method includes: playing a target video in a preset page; displaying an object identifier set associated with the target video in the preset page, wherein the object identifier set includes object identifiers respectively corresponding to a plurality of explanation objects associated with the target video, and the object identifier set includes a first object identifier displayed in a first display mode and a second object identifier displayed in a second display mode, the first object identifier is configured to trigger a preset interaction event of a corresponding explanation object, and the first object identifier includes an object identifier corresponding to a first target explanation object, and a display state of the first target explanation object satisfies a preset condition.

Abstract: Disclosed are a driving method for a display device and the display device. In an image display process, when a brightness change is generated in a local area of a display image, a first brightness of a current display image is determined; a first driving current corresponding to the first brightness is determined according to the first brightness and the predetermined relationship between the brightness and a driving current; a duty ratio of the first driving current of each partition in a backlight module corresponding to areas other than the local area of the display image is adjusted; and a light source in each partition is driven by using the adjusted first driving current and duty ratio to emit light, such that the brightness of the display image in other areas is kept unchanged.

Abstract: A metal powder preparation system and method are provided. The metal powder preparation system includes a medium frequency smelting furnace, a homogeneous insulated quantitative pouring furnace, a precision-controlled liquid level temperature pouring ladle, and a plurality of groups of atomization mechanisms connected in sequence. The present application improves the preparation quality of the metal powder, so that the parameters such as the powder particle size, sphericity, fluidity, oxygen content, component distribution, and particle size distribution of the metal powder can all meet the requirements of high-quality metal additive manufacturing, achieving efficient and continuous preparation of the metal powder at the same time.

Abstract: The present application relates to a bidirectional digital switching power amplifier based on a magnetic suspension drive platform and its multi-step current predictive control method. The control method includes the following steps: establishing a prediction model of a bidirectional digital switching power amplifier; introducing a feedback correction term for a closed loop prediction; calculating an optimal modulation duty cycle through a value function; generating, according to the obtained modulation duty cycle, four PWM drive signals by a pulse width modulation module to control four switch tubes respectively to achieve current prediction control. The present application effectively improves the system control accuracy with small steady-state error, small on-line computation amount, simple algorithm, easy digital realization, and good practical value and application prospect.

Abstract: A III-V/Si hybrid MOS optical modulator with a traveling-wave electrode for high-efficiency and high-bandwidth optical modulation is disclosed. The III-V/Si hybrid MOS optical modulator equipped with a traveling-wave electrode becomes a traveling-wave modulator. The traveling-wave modulator comprises a III-V compound semiconductor layer, a silicon layer and an oxide layer between the III-V compound semiconductor layer and the silicon layer. The traveling-wave modulator comprises of at least one first metallic layer, at least one second metallic layer and a semiconductor layer. The electrode trace width of each second metallic layer and the spacing between adjacent second metallic layers are adjusted to achieve the impedance and velocity matching. A traveling-wave electrode is designed to integrate with the III-V/Si hybrid MOS optical modulator under forward and reverse bias.

Abstract: The present invention relates to the technical field of construction engineering, and specifically to configurations and close-fitting joints for a second-order scissor damper and an assembly method for the same. There six parts in total, including first hinge joints, a first-order shuttle-shaped linkage mechanical component, second hinge joints, a second-order shuttle-shaped linkage mechanical component, third hinge joints, and a viscous damper; the second-order shuttle-shaped linkage mechanical component includes four small connecting rods of equal length and it is formed by hinging them together. The device of the present invention can constrain the joints, release the bending constraints on the ends of the rods, and enable a significant increase in the stroke amplification of the conventional scissor damper.

Abstract: Disclosed are a hydraulic fracturing and cutting cooperative device suitable for a hard rock and a use method thereof, belonging to the technical field of high-efficiency and rapid excavation of hard rock roadway (tunnel). The hydraulic fracturing and cutting cooperative device suitable for a hard rock provided by the disclosure includes a drill pipe, a pneumatic drilling system, a hydraulic fracturing system, a collaborative control system and a cutting head.

Abstract: A method includes: transmitting a first common control channel on a first resource, wherein the first resource is one candidate resource of a first candidate resource set within downlink resources of a cell, wherein the first common control channel carries a common search space indication information, wherein the common search space indication information indicates an actual resource of a common search space in a second candidate resource set of the cell, wherein the second candidate resource set is a subset of a common search space candidate resource set, wherein the common search space candidate resource set comprises at least two subsets, and wherein each subset of the at least two subsets corresponds to a candidate resource of the first candidate resource set; and transmitting a physical downlink control channel in the actual resource of the common search space.

Abstract: An example transformer cell includes a printed circuit board (PCB) having a plurality of layers and at least two transformers. The at least two transformers include a primary winding implemented in a plurality of primary layers among the plurality of layers, a plurality of secondary windings implemented in a plurality of secondary layers among the plurality of layers, and a core extending through the primary winding and the plurality of secondary windings. The transformer cell further includes a first output capacitor located above a top layer among the plurality of layers and along a first edge of the PCB, a second output capacitor located above the top layer along a second edge of the PCB, the second edge being opposite the first edge. The transformer cell additionally includes one or more switching devices located between the first and the second output capacitors.

Abstract: Integrated circuit (IC) die packages including a glass with conductive through-glass vias (TGVs). The TGVs are lined with a buffer comprising an inorganic material having a low elastic (Young's) modulus. The buffer may thereby accommodate internal stress between the glass and through via metallization formed over the buffer. The compliant inorganic material may be a metal or metal alloy, for example, different than that of the via metallization. The inorganic material may also be a metal nitride, metal silicide, or metal carbide. A TGV buffer may be one material layer of a stack comprising two or more material layers deposited upon TGV sidewall surfaces. A routing structure may be built-up on at least one side of the glass and IC die assembled to the routing structure. The buffer Ipresent within the TGVs may be absent from metal features of the routing structure.