Abstract: A bakuchiol derivative, a pharmaceutically acceptable salt thereof, and a preparation method and use of the same. The bakuchiol derivative has a structure shown in formula (I): The above series of amphiphilic antibacterial compounds based on bakuchiol have comparatively excellent antibacterial activities and can overcome the generation of drug resistance of bacteria in drug resistance research simulated in a laboratory.

Abstract: A system for controlling damages in cleaning a semiconductor wafer comprising features of patterned structures, the system comprising: a wafer holder for temporary restraining a semiconductor wafer during a cleaning process; an inlet for delivering a cleaning liquid over a surface of the semiconductor wafer; a sonic generator configured to alternately operate at a first frequency and a first power level for a first predetermined period of time and at a second frequency and a second power level for a second predetermined period of time, to impart sonic energy to the cleaning liquid, the first predetermined period of time and the second predetermined period of time consecutively following one another; and a controller programmed to provide the cleaning parameters, wherein at least one of the cleaning parameters is determined such that a percentage of damaged features as a result of the imparting sonic energy is lower than a predetermined threshold.

Abstract: This application provides a biphenyl diaryl pyrimidine derivative with an aromatic heterocyclic structure, a pharmaceutically-acceptable salt, a stereoisomer, a hydrate and a solvate thereof, where the biphenyl diaryl pyrimidine derivative is shown in formula (I). This application also provides a pharmaceutical composition containing the biphenyl diaryl pyrimidine derivative, or a pharmaceutically-acceptable salt, a stereoisomer, a hydrate and a solvate thereof, and a pharmaceutically-acceptable carrier. This application further provides a method of treating AIDS by administering a therapeutically effective amount of the pharmaceutical composition to a patient in need.

Abstract: A storage device and a data accessing method are disclosed, wherein the storage device includes a memory circuit and a control circuit. The memory circuit includes a plurality of multi-level cells, and each of the multi-level cells is configured to store at least a first bit, a second bit and a third bit in at least a first page, a second page and a third page. The control circuit is configured to read the first bits according to a one-time reading operation related to the first bits, read the second bits according to M-times reading operations related to the second bits, and read the third bits according to N-times reading operations related to the third bits, wherein the difference between M and N is less than or equal to one.

Abstract: A drive circuit of a display panel and a display device are provided in the disclosure. The drive circuit includes a voltage output module. The voltage output module includes a voltage input terminal, a voltage output terminal, a detection module, and an isolation module. The voltage input terminal is configured to receive a voltage signal. The voltage output terminal is electrically coupled with the display panel. The detection module is electrically coupled with the voltage input terminal and configured to determine whether a voltage value of the voltage signal received at the voltage input terminal is greater than or equal to a preset voltage threshold. The detection module is configured to output a second control signal when the voltage value of the voltage signal is less than the preset voltage threshold.

Abstract: The present disclosure introduces, among other things, an electronic device, e.g. an integrated circuit (IC). The IC includes a semiconductor substrate comprising a first doped layer of a first conductivity type. A second doped layer of the first conductivity type is located within the first doped layer. The second doped layer has first and second layer portions with a greater dopant concentration than the first doped layer, with the first layer portion being spaced apart from the second layer portion laterally with respect to a surface of the substrate. The IC further includes a lightly doped portion of the first doped layer, the lightly doped portion being located between the first and second layer portions. A dielectric isolation structure is located between the first and second layer portions, and directly contacts the lightly doped portion.

Abstract: A combined bio-artificial liver support system, includes branch tubes that are connected in sequence: a blood input branch tube, an upstream tail end, a first plasma separation branch tube comprising at least a first plasma separator, a non-biological purification branch tube comprising at least a plasma perfusion device and a bilirubin adsorber, a biological purification branch tube comprising at least a hepatocyte culture cartridge assembly, and a plasma return branch tube, a downstream tail end of which is set as a blood output end.

Abstract: An unmanned aerial vehicle may include a fuselage and an anchor structure coupled to the fuselage and including a wing retention structure and a power module retention structure. The unmanned aerial vehicle may also include a wing releasably coupled to the wing retention structure, thereby coupling the wing to the fuselage, and a power module releasably coupled to the power module retention structure, thereby coupling the power module to the fuselage.

Abstract: Embodiments of this application disclose a domain name system server determining method, and a request processing method, apparatus, and system. An embodiment of this application provides a domain name system server determining method, including: A session management function network element determines an address of a first domain name system server based on a first location of user equipment, where the first domain name system server is a local domain name system server that resolves a domain name of a first application into a corresponding first Internet protocol address, which is associated with the first location; and the session management function network element sends the address of the first domain name system server to a first device.

Abstract: A layout of a semiconductor memory device includes a substrate and a ternary content addressable memory (TCAM). The TCAM is disposed on the substrate and includes a plurality of TCAM bit cells, where at least two of the TCAM bit cells are mirror-symmetrical along an axis of symmetry, and each of the TCAM bit cells includes two storage units electrically connected to two word lines respectively, and a logic circuit electrically connected to the storage units. The logic circuit includes two first reading transistors, and two second reading transistors, where each of the second reading transistors includes a gate and source and drain regions, the source and drain regions of the second reading transistors are electrically connected to two matching lines and the first reading transistors, respectively, where the word lines are disposed parallel to and between the matching lines.

Abstract: The present invention relates to the field of medical biology, and discloses a single domain antibody and derivative proteins thereof against CTLA4. In particular, the present invention discloses a CTLA4 binding protein and the use thereof, especially the use for treating and/or preventing CTLA4 relevant diseases such as tumor.

Abstract: A projection device, including an illumination system, a control element, a driving element, a light valve, and a projection lens, is provided. The illumination system includes multiple light sources for providing multiple light beams to be combined into an illumination light beam. The driving element respectively drives the light sources in a first mode or a second mode, so that the light beams have respective luminous brightness, and the driving element is switched from the first mode to the second mode according to a first signal. The control element provides the first signal to the driving element according to an optical state or a time state of the projection device. The light valve is adapted to convert the illumination light beam into an image light beam. The projection lens is adapted to project the image light beam out of the projection device.

Abstract: A centrifugal pendulum includes a first support plate, being able to rotate around a rotation axis; a second support plate, facing the first support plate in the axial direction and fixed to the first support plate. A mass is disposed between the first support plate and the second support plate in the axial direction. The first support plate has a first protrusion extending axially, and the first protrusion is integrally formed with the first support plate and defines a first track. The mass has a through hole extending axially, and the through hole defines a second track. The first protrusion extends into said through hole such that the first track faces the second track in the radial direction. A roller is disposed between the first track and the second track in the radial direction, and is capable of rolling against the first track and the second track, such that the mass is able to move relative to the first and second support plates and apply a torque onto the first and second support plates.

Abstract: The disclosure provides the use of a plant in the preparation of medicines and health products for preventing and treating ovarian injury. The application found that seabuckthorn fruit pulp and seabuckthorn seed oil have good preventive and therapeutic effects on ovarian injury. Seabuckthorn fruit pulp and seabuckthorn seed oil can prevent mouse ovarian injury and estrus cycle disorders, and can improve ovarian reserve, etc. Meanwhile, they also have good therapeutic effects on the above-mentioned injuries. This application provides a basis for the prevention and treatment of ovarian injury directly by seabuckthorn fruit pulp and seabuckthorn seed oil.

Abstract: A reliability evaluation method and system for a microgrid inverter IGBT based on segmented long short-term memory (LSTM) is disclosed, including steps as follows. An electrothermal coupling model is constructed to obtain real-time junction temperature data. The original LSTM algorithm is improved to obtain a segmented LSTM prediction network for the aging characteristics of the IGBT. The monitoring value of the IGBT aging parameter is used to perform segmented LSTM prediction to obtain the predicted aging process, and the threshold values of different aging stages are categorized. An aging correction is performed on the aging parameter of the electrothermal coupling model to ensure the accuracy of the junction temperature data. Rainflow-counting algorithm is used to calculate real-time thermal stress load distribution of the IGBT. The fatigue damage theory and the Lesit life prediction model are combined to calculate the real-time cumulative damage and predicted life of the IGBT.

Abstract: A self-pressure-relief air distribution mechanism includes an air distribution valve (6) where a rear face of the air distribution valve (6) is divided into a high-pressure face (66) and a low-pressure face (65), each hermetically separated by a third sealing ring (b3) that seals the air distribution valve (6) and a cover (2). A low-pressure passage (22) of the cover (2) can communicate with the rear face of the air distribution valve (6) via a pressure-relief hole (61), to guide a low-pressure airflow in the cover (2) to the rear face of the air distribution valve (6). A cryogenic refrigerator includes the self-pressure-relief air distribution mechanism. With the provision of the pressure-relief hole (61) and the third sealing ring (b3), the self-pressure-relief air distribution mechanism has a reduced pressure receiving area, thereby reducing a positive acting force and reducing wear.

Abstract: An online meeting system begins the process of connecting a user to an online meeting when a request is received from a user to start or join the online meeting. In response to the request, a pre-meeting user interface (UI) is displayed having a user interface control which, when activated, enables transmission of audio and/or video data for the online meeting, and prior to activation of the control, connection parameters are shared with an online meeting service to preheat the meeting. In response to activation of the control, transmission of audio and/or video data for the online meeting is enabled.