Abstract: A flyback power converter includes a power transformer, a first lossless voltage conversion circuit, a first low-dropout linear regulator and a secondary side power supply circuit. The first low-dropout linear regulator (LDO) generates a first operation voltage as power supply for being supplied to a sub-operation circuit. The secondary side power supply circuit includes a second lossless voltage conversion circuit and a second LDO. The second LDO generates a second operation voltage. The first operation voltage and the second operation voltage are shunted to a common node. When a first lossless conversion voltage is greater than a first threshold voltage, the second LDO is enabled to generate the second operation voltage to replace the first operation voltage as power supply supplied to the sub-operation circuit; wherein the second lossless conversion voltage is lower than the first lossless switching voltage.

Abstract: An integrated circuit includes a T-coil circuit, a silicon-controlled rectifier (SCR), and a signal-loss prevention circuit. The T-coil circuit is coupled to an input/output (I/O) pad and an internal circuit. The SCR is coupled to the T-coil circuit and the internal circuit. The signal-loss prevention circuit is coupled to the T-coil circuit and the SCR. The signal-loss prevention circuit includes a resistor coupled to the T-coil circuit and the SCR. An electrostatic current flows through the resistor and turns on the SCR. The signal-loss prevention circuit may also include a diode circuit coupled to the T-coil circuit and the SCR. The diode circuit is configured to prevent signal loss.

Abstract: Structures with doping free connections and methods of fabrication are provided. An exemplary structure includes a substrate; a first region of a first conductivity type formed in the substrate; an overlying layer located over the substrate; a well region of a second conductivity type formed in the overlying layer; a conductive plug laterally adjacent to the well region and extending through the overlying layer to electrically contact with the first region; and a passivation layer located between the conductive plug and the well region.

Abstract: The present disclosure provides a use of a pharmaceutical composition including adenine and/or a pharmaceutically acceptable salt thereof in a manufacture of a medicament for treating diabetic ulcers, and the medicament can effectively accelerate and enhance wound healing of diabetic ulcers and prevent scar formation.

Abstract: A write request directed to the non-volatile memory device is received. A stripe associated with an address specified by the write request is present in the volatile memory device is determined. The volatile memory device includes a plurality of stripes, each stripe of the plurality of stripes having a plurality of managed units. The write request on a managed unit of the stripe in the volatile memory device is performed. The stripe in the volatile memory device is evicted to a stripe in the non-volatile memory device.

Abstract: A method for training a machine learning model is described, comprising receiving, for each perturbation of a plurality of perturbations of model parameters of a starting version of the machine learning model, a change of loss of the machine learning model caused by the perturbation for a set of training data determined by feeding the set of training data to one or more perturbed versions of the machine learning model, estimating a gradient of the loss of the machine learning model with respect to the model parameters from the determined changes of loss and updating the starting version of the machine learning model to an updated version of the machine learning model by changing the model parameters in a direction for which the estimated gradient indicates a reduction of loss.

Abstract: An image processing method includes the following steps. A plurality of facial landmarks of a face frame are analyzed. A feature width is calculated according to the facial landmarks, and a head pose is analyzed according to the facial landmarks. The head pose is utilized to update the feature width to generate an updated width. A scale ratio of the updated width to an initial width is calculated. An object distance of a virtual camera is controlled according to the scale ratio. A two-dimensional image is captured from a virtual scene according to the object distance of the virtual camera.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and method for presenting an overview of participant conversations within a virtual conferencing system. The program and method provide for a virtual space comprising plural rooms, each room of the plural rooms being configured for virtual conferencing between respective participants; provide, for an administrator of the virtual space, display of a dashboard interface, the dashboard interface comprising a room preview element for each of the plural rooms, each room preview element corresponding to a live preview for a respective room of the plural rooms; determine metrics for each of the plural rooms; and provide for display of the metrics within the dashboard interface.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and method for presenting change of presence sounds within a virtual working environment. The program and method provide for receiving, from a first client device of a first participant of a group of participants within a virtual working environment, interaction data relating to the first participant being present at the first client device, the group of participants having been selected from among plural participants of the virtual working environment; determining a change in presence of the first participant with respect to the first client device; generating, in response to the determining, a sound corresponding to the change in presence; and providing the generated sound to one or more second client devices of respective one or more second participants of the group of participants, for presentation on the one or more second client devices.

Abstract: The present disclosure provides a colored anodic aluminum alloy coloring treatment process for achieving the multi-color coloring treatment may be conducted on the surface of an aluminum alloy, and combining pigments and metals by physical coloring and chemical complexation. The process comprises the following steps: carrying out degreasing and decontamination the aluminum alloy, then carrying out alkalization treatment, and neutralizing alkalized substances; chemically polishing the aluminum alloy, neutralizing a chemical polishing compound, and performing anodic oxidation treatment to generate an aluminum oxide dielectric film layer with tiny holes in the surface of the aluminum alloy after anodic oxidation; and printing colorful process patterns on the surface of the aluminum alloy, and conducting air drying treatment and hole sealing treatment on the surface of the aluminum alloy.

Abstract: A projection device includes a shell, a lens, two first ribs, two second ribs, and a sliding cover. The shell has a top plate, a left sidewall, and a right sidewall, the top plate is respectively connected to the left sidewall and the right sidewall, and the top plate has an opening. The lens is disposed in the shell and exposed by the opening. The two first ribs are disposed on the top plate, extending directions of the two first ribs are perpendicular to the left sidewall and the right sidewall, and the opening is disposed between the two first ribs. The sliding cover is slidably disposed on the shell for covering the opening. The two second ribs are disposed on a top cover body of the sliding cover, and one of the two second ribs is located between the two first ribs.

Abstract: An electronic device includes a first insulating layer, a first conductive portion, a second conductive portion, a transistor, and an electronic unit. The first insulating layer has a first opening penetrating the first insulating layer along a first direction. The first conductive portion is disposed in the first opening. The second conductive portion is electrically connected to the first conductive portion. The transistor is electrically connected to the second conductive portion. The electronic unit is electrically connected to the first conductive portion. In a cross-sectional view of the electronic device, the electronic unit and the second conductive portion are disposed on two opposite sides of the first insulating layer respectively, the first conductive portion has a first length along a second direction perpendicular to the first direction, the second conductive portion has a second length along the second direction, and the first length is different from the second length.

Abstract: According to an exemplary embodiment, a substrate having a first area and a second area is provided. The substrate includes a plurality of pads. Each of the pads has a pad size. The pad size in the first area is larger than the pad size in the second area.

Abstract: Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and method for assigning participants to rooms within a virtual conferencing system. The program and method provide for accessing, in association with a virtual space comprising plural rooms for virtual conferencing between plural participants, room occupancy preferences for occupying the plural rooms; accessing metadata associated with one or more participants of the plural participants; assigning, based on the room occupancy preferences and the metadata, the plural participants to one or more rooms of the plural rooms; and providing, based on the assigning, for virtual conferencing between the plural participants within the one or more rooms.

Abstract: A semiconductor die including mechanical-stress-resistant bump structures is provided. The semiconductor die includes dielectric material layers embedding metal interconnect structures, a connection pad-and-via structure, and a bump structure including a bump via portion and a bonding bump portion. The entirety of a bottom surface of the bump via portion is located within an area of a horizontal top surface of a pad portion of the connection pad-and-via structure.

Abstract: A method includes attaching a package component to a package substrate, the package component includes: an interposer disposed over the package substrate; a first die disposed along the interposer; and a second die disposed along the interposer, the second die being laterally adjacent the first die; attaching a first thermal interface material to the first die, the first thermal interface material being composed of a first material; attaching a second thermal interface material to the second die, the second thermal interface material being composed of a second material different from the first material; and attaching a lid assembly to the package substrate, the lid assembly being further attached to the first thermal interface material and the second thermal interface material.

Abstract: A wire terminal protector, an assembly component, and a household cooking appliance are provided. The wire terminal protector includes a first component and a second component. The first component and the second component are assembled to form an enclosed space. One or both of the first component and the second component are provided with a first through-hole that connects the enclosed space to an outside. A wire terminal is accommodated in the enclosed space, and the first through-hole is configured for insertion of a wire into the enclosed space.

Abstract: A negative electrode plate, a battery, and a battery pack are provided. The negative electrode plate includes a negative current collector and a negative material layer disposed on a surface of the negative current collector. The negative material layer includes a hard carbon material containing primary particles and secondary particles, and the primary particles have a defect value different from that of the secondary particles. In comparison with the solution of only using one kind of hard carbon particles having the same defect value as the negative material layer, the negative electrode plate of the present disclosure includes two kinds of hard carbon particles with different defect values, which combines the excellent properties of the two kinds of hard carbon particles. Therefore the negative electrode plate has excellent properties while satisfying the requirements of a battery, such as high energy density, high first-cycle discharge efficiency, and excellent rate performance.

Abstract: A communications apparatus includes a processor configured to generate a radio frame. The radio frame comprises a data block. The data block comprises a plurality of N pilot blocks, a plurality of M sub-data blocks, and one guard interval (GI). Every two N pilot blocks of the plurality of N pilot blocks are not adjacent. The GI is located at a tail end of the data block, 4?N?8, N is an integer, M?N?1, and M is an integer. The communications apparatus also includes transceiver configured to send the radio frame to a receiver.