Abstract: An autonomous mobile device (AMD) moves within in a physical space. The AMD may encounter features in the physical space, such as flooring transitions, or obstacles that may impede movement. Sensors such as an ultrasonic sensor, optical time of flight sensors, inertial measurement unit (IMU), wheel speed sensors, and motor torque sensors acquire sensor data. Based on the sensor data, a location of an obstacle, and characterize whether that obstacle is traversable or non-traversable, is determined. If traversable, the AMD may continue moving past the obstacle. If non-traversable, the location of the obstacle may be added to a map used for route planning. Based on the location of the non-traversable obstacle, the AMD may move to a recovery location away from the obstacle, and resume moving.

Abstract: A method and apparatus for protecting data, and a device and a medium are provided. The method comprises acquiring, by a first device, a feature representation generated by a second device on the basis of sample data and according to a second model, wherein the first device has label information for the sample data; and the first device and the second device are used for jointly training a first model at the first device and the second model at the second device. The method further comprises generating, by the first device, a prediction label for the sample data on the basis of the feature representation and according to the first model. The method further comprises determining, by the first device and on the basis of the feature representation, the label information and the predicted label, a total loss value used for training the first model and the second model.

Abstract: An electric vehicle charging control device includes a charging station and an electronic dynamic charging schedule generator. The charging station has at least a first charging port and a second charging port. The electronic dynamic charging schedule generator has an electronic controller is configured to determine when a first electric vehicle user accesses the first charging port. The electronic controller is further configured to determine when a second electric vehicle user accesses the second charging port. The second electric user accesses the second charging port after the first user accesses the first charging port. The electronic controller is programmed to generate a first charging schedule for the first electric vehicle. The electronic controller is programmed to generate a second charging schedule for the second electric vehicle. The electronic controller is programmed to update the first charging schedule based on the second charging schedule.

Abstract: Disclosed is a power supply assembly comprising a first printed circuit board (PCB), a second PCB that is vertically spaced apart from the first PCB, and a switch supported on the second PCB. The power supply assembly further comprises a conductive pillar that couples the first PCB to the second PCB, wherein current output by the switch flows from the switch to the first PCB via the conductive pillar.

Abstract: The present disclosure describes techniques of performing machine unlearning in a recommendation model. An unlearning process of the recommendation model may be initiated in response to receiving a request for deleting a fraction of user data from any particular user. The recommendation model may be pre-trained to recommend content to users based at least in part on user data. Values of entries in a matrix corresponding to the fraction of user data may be configured as zero. The matrix may comprise entries denoting preferences of users with respect to content items. Confidence values associated with the fraction of user data may be configured as zero to block influence of the fraction of user data on performance of the recommendation model. The unlearning process may be implemented by performing a number of iterations until the recommendation model has converged.

Abstract: The present disclosure provides a method for diagnosing structural in-service performance based on high dam risk mode and failure path. The method includes: constructing a high dam risk incident case database and extracting risk feature parameters; applying multi-scale hierarchical adaptive correspondence analysis, and resolving the problem of imbalance feature weights through feature weight calculation, hierarchical weighting of risk modes, establishment of physical similarity indices, and structural difference compensation, generating a weighted similar-project ranking list; constructing a time-series adaptive network model with multiple failure modes coupled to address the imperfect time-series evolution mechanism of failure paths, and outputting a time-series failure path prediction model; combining the similar-project ranking list and the time-series failure path prediction model to conduct engineering analogy analysis and generate a high dam safety status assessment report.

Abstract: The present disclosure discloses a staple cartridge, a staple cartridge assembly, and an anastomosis device. A feeding groove of a staple cartridge provided in the present disclosure is arranged to extend in the first predetermined direction. Multiple staple slot groups are distributed on both sides of the feeding groove along the slot-width direction of the feeding groove, and the number of staple slot groups on both sides of the feeding groove is different.

Abstract: A circuit includes a digital attenuator part with first and second attenuator terminals, a first inductor, a first switched arrangement, and a second switched arrangement. The first inductor has a first terminal coupled to the first attenuator terminal and a second terminal coupled to the second attenuator terminal. The first switched arrangement has a first switch with a first switch-terminal and a second switch-terminal. The first switch-terminal is coupled to the first terminal of the first inductor. A first resistor and a first capacitor are arranged in parallel, coupled between the second switch-terminal and a reference voltage. The second switched arrangement has a second switch with a first switch-terminal and a second switch-terminal. The first switch-terminal is coupled to the second terminal of the first inductor. A second resistor and a second capacitor are arranged in parallel and coupled between the second switch-terminal and the reference voltage.

Abstract: A method for assessing quality of an echocardiogram image based on fusion of image and text features is provided, which relates to the field of medical imaging technologies. The method includes performing feature extraction and classification by using a target detection model, aligning image features with quality control text features by using a visual-language feature alignment module, and performing sentence template selection, linear projection, and merging by using a large language model.

Abstract: Substantially equal mutual inductances between a primary coil and respective secondary windings of a secondary coil of a transformer with an integrated differential Wilkinson power divider or combiner help to ensure balanced outputs for the transformer. The primary coil and the secondary coil are substantially symmetric to provide a high coupling between the coils, and the secondary windings of the secondary coil are substantially symmetric to help provide the substantially equal mutual inductances. The secondary windings of the secondary coil cross over each other an equal number of times to further ensure balanced outputs for the transformer.

Abstract: Various embodiments include a printed circuit board cover assembly comprising a cover layer that attaches to at least a portion of a printed circuit board layer, and a retention hook that extends from the cover layer and physically interfaces with at least a portion of a connection port. In various embodiments, a printed circuit board package comprises a printed circuit board layer, a cover layer that attaches to at least a portion of the printed circuit board layer, and a retention hook extending from the cover layer, the retention hook configured to physically interface with at least a portion of a connection port.

Abstract: The disclosure relates to a power amplifier apparatus. A power amplifier apparatus includes a power amplifier circuit configured to receive an RF input signal at an RF input and to generate an RF output signal at an RF output; an adaptive bias circuit comprising a biasing transistor, the biasing transistor having a common terminal coupled to the RF input and to a tail current source, and the biasing transistor further having an input terminal coupled to a DC bias voltage source; and a rectification booster comprising a current mirror device, wherein a first side of the current mirror device is coupled to an output terminal of the biasing transistor and wherein a second side of the current mirror device is coupled to the RF input.

Abstract: Described herein are new solid oxide fuel cell interconnects and methods for making same that may comprise a novel bilayer construct on an anode substrate to provide a dense microstructure, low area specific resistance, and negligible oxygen permeability to form a bilayer ceramic interconnect that is a strong candidate for next-generation, durable, and low-cost tubular solid oxide fuel cells.

Abstract: The present invention discloses a method and a system for controlling an overvoltage in a photovoltaic court based on a floating neutral voltage, including: acquiring, by a controller, a voltage U of the photovoltaic court and a voltage U0 of a transformer neutral point; comparing acquired voltage data with a set threshold; generating control instructions of offsetting and compensation according to a comparison result; and receiving the instructions by a neutral voltage regulator, and controlling a voltage. The present invention introduces a floating neutral line between a photovoltaic power supply and a grid-connected transformer neutral point, and arranges a neutral voltage regulator on the floating neutral line. By adjusting its direction and size, the neutral voltage regulator can adapt to the voltage problem of the court in different states. Meanwhile, by adjusting the voltage on the grid-connected transformer neutral point side, the voltage of the grid-connected transformer neutral point is zero.

Abstract: A bias circuit configured to provide a differential voltage and a common-mode voltage. The bias circuit includes a differential circuit and a common-mode circuit. The differential circuit includes a first differential input resistor, a first differential output resistor, a second differential output resistor, and a second differential input resistor connected together in series, in that order, between first and second differential input terminals. A first differential output terminal is connected to a node between the first differential input resistor and the first differential output resistor; and a second differential output terminal is connected to a node between the second differential output resistor and the second differential input resistor.

Abstract: Disclosed are a tab welding structure and a battery. The tab welding structure includes a tab and a to-be-welded part, where the to-be-welded part is welded on the tab to form a connecting portion, a plurality of first welding mark structures that are concave in a thickness direction of the connecting portion are formed on the connecting portion, each of the plurality of first welding mark structures includes a first welding surface and a first surrounding wall that are connected to each other, and the first surrounding wall is an arc surface.

Abstract: Wilkinson power dividers (or combiners) include a first positive output terminal and a second positive output terminal connected to a positive trace in a first plane and a first negative output terminal and a second negative output terminal connected to a negative trace in a second plane spaced apart from the first plane, e.g., in different circuit layers, with minimal overlap and crossings of positive and negative portions of the traces near the midpoints of the traces. The positive and negative traces are substantially symmetric to one another, and cascading various ones of the power dividers disclosed herein enables implementation of N-way Wilkinson power dividers.

Abstract: A starch blend includes 40-85% (w/w) of an unmodified amylose-containing starch and 15-60% (w/w) of a non-chemically inhibited starch. The starch blend, upon cooking in water has a high viscosity after one or more, two or more, three or more, four or more, or five or more freeze-thaw cycles. Such starch blend is useful in a variety of food and beverage compositions, particularly frozen sauces and gravies.

Abstract: Disclosed is an antibody capable of binding to the interleukin 4 (IL-4) receptor (IL-4). Also disclosed are a nucleic acid sequence encoding the antibody, a vector including the nucleic acid sequence, and a host cell transformed or transfected with the vector. Provided are a method for producing the antibody, a medical use of the antibody, and a kit including the antibody.

Abstract: Example graphics processing subsystems and computing devices that include the graphics processing subsystem(s) are described. In one example, the graphics processing subsystem may comprise a first fan, a second fan and a printed circuit board (PCB) on which a processor is disposed. The first fan may be associated with a first axis about which the first fan is rotatable. The second fan may be associated with a second axis about which the second fan is rotatable. The PCB may be shaped and positioned such that (a) a first airflow path for cooling the processor traverses through the first fan and a first opening below the first fan, and (b) a second airflow path for cooling the processor traverses through the second fan and a second opening below the second fan. The first airflow path and the second airflow path are substantially linear relative to the respective first axis and second axis.