Abstract: Disclosed are a multi-directional broadband tuned mass damper and a design method thereof, since a first damping structure and a second damping structure are set on a rigid vibration damping frame, and the first damping structure is provided with a control main frequency, the second damping structure is provided with two control main frequencies, the control main frequency of the second damping structure is greater than that of the first damping structure; under the synergistic effect, the second damping structure mainly effectively broadens the control range for high frequencies, and a plurality of first damping structures control the control main frequency of a low frequency one-to-one, thereby controlling the full frequency, and the extension direction of the first damping structure is the same as that of the second damping structure on the rigid vibration damping frame, ensuring isotropic mass and stiffness distribution characteristics thereof; and furthermore, when using different control frequency range

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects. a user equipment (UE) may transmit a first message of a four-step random access channel (RACH) procedure to a base station. The UE may receive a second message of the four-step RACH procedure. The UE may transmit a third message of the four-step RACH procedure. The UE may determine that the third message was not successfully decoded by the base station. The UE may retransmit the third message based at least in part on applying a power boosting algorithm to increase an uplink transmission power. wherein the power boosting algorithm is applied based at least in part on a power offset between the third message and the first message satisfying a threshold and a transmit power control (TPC) command not being received from the base station. Numerous other aspects are described.

Abstract: An optical member driving mechanism is provided. The optical member driving mechanism includes a fixed portion, a movable portion, a driving assembly and a circuit assembly. The fixed portion has a main axis and a polygonal structure surrounding the main axis. The movable portion is configured to connect an optical member, and is movable relative to the fixed portion. The driving assembly drives the movable portion to move relative to the fixed portion. The circuit assembly is electrically connected to the driving assembly.

Abstract: According to one aspect of the present disclosure, a method of wireless communication of a first node is provided. The method may include generating, by at least one processor, a first low-power listening (LPL) frame with a first LPL subfield set to “enable.” The method may include transmitting, by a communication interface, the first LPL frame with the first LPL subfield set to “enable” to a second node. The method may include enabling, by the at least one processor, an LPL mode after the first LPL frame with the first LPL subfield set to “enable” is transmitted to the second node.

Abstract: A method for drying a wafer includes a cleaning step, a liquid replacing step, and a drying step. In the cleaning step, a workpiece located in a process chamber is cleaned with a cleaning solution. In the liquid replacing step, a drying agent in gas phase is compressed to convert into liquid phase, and the drying agent in liquid phase is introduced to the process chamber to replace the cleaning solution. In the drying step, the cleaning solution is discharged out of the process chamber, and then the drying agent is converted from liquid phase back to gas phase and is discharged out of the process chamber.

Abstract: Disclosed is a cloth clamping mop with easy-to-replace mop cloth. The cloth clamping mop includes a mop rod and a mop bottom plate, where the mop bottom plate is provided with a clamping assembly configured to clamp the mop cloth; the clamping assembly includes first clamping members and second clamping members; the mop bottom plate is further provided with driving assemblies configured to drive the second clamping members to move close to or away from the first clamping members; and the mop rod is connected to the driving assemblies, and the driving assemblies are controlled to drive the second clamping members to move close to or away from the first clamping members by lifting or pressing the mop rod. The cloth clamping mop is simple in structure and more convenient in operation of mop replacement.

Abstract: A fan gearbox oil replacement device and a method for using the same; the fan gearbox oil replacement device in includes a moving box body, a reversing mechanism, a filtering mechanism and an oil storage mechanism are arranged in the moving box body; the reversing mechanism is provided with an oil inlet and an oil outlet which are opened or closed at different time; the filtering mechanism comprises a filtering tank and a sedimentation tank, the filtering tank is located below the oil outlet, and the sedimentation tank is located below the filtering tank; the sedimentation tank is connected to the oil storage mechanism and is communicated with the interior of the filtering tank; the oil storage mechanism is communicated with the oil inlet; the sedimentation tank and the oil storage tank of the present invention can be easily pushed into or pushed out from the moving box body.

Abstract: The present disclosure provides a high-accuracy, fast, and phase-based laser ranging method. The method includes: S1, obtaining an eigen signal and an avalanche photon diode (APD) echo signal whose phases are different and frequencies are the same; S2, performing, through an adaptive filtering method, denoising on an initial signal, to obtain two denoised signals; S3, separately performing data splitting, reconstitution, and all-phase fast Fourier transform on the denoised signals, to obtain a frequency-phase spectral line of the eigen signal and a frequency-phase spectral line of the APD echo signal; S4, separately traversing maximum phase values of the frequency-phase spectral line of the eigen signal and the frequency-phase spectral line of the APD echo signal, to obtain a phase difference ??; S5, converting the phase difference ?? into a distance; S6, performing signal mean filtering processing, and S7, performing Kalman filtering processing.

Abstract: An optical component driving mechanism is provided, including a holder, a fixed portion, a driving assembly, and a first circuit assembly. The holder is used to connect the optical component. The holder is movable relative to the fixed portion. The driving assembly is used to drive the holder to move relative to the fixed portion. The first circuit assembly is fixedly disposed on the holder. The first circuit assembly is electrically connected to the driving assembly.

Abstract: Examples of a crystal material and a preparation method are described. One example crystal material includes a secondary particle formed by agglomerating a plurality of monocrystalline grains. There are grain boundaries between the grains. Another example crystal material includes a monocrystalline particle. Each monocrystalline particle includes one monocrystalline grain. The crystal material is obtained by modifying a crystal material primary product in which monocrystalline particles have few defects, a gap at a grain boundary of a secondary particle is small, and bonding between grains is strong.

Abstract: An active omni-directional motion device is provided. By combining a foot inertial sensor and a foot optical non-contact sensor, an actual moving speed and start-and-stop time are accurately judged, a user walking direction is accurately judged by a chassis magnetic angle sensor, and an active chassis actively cooperates with a user to enable the user to naturally walk on the chassis in all directions. The optimization of adaptation of the device to different heights enables the user to use the device without adjusting the device. The increase of a sitting posture function enables the user to sit down comfortably without getting off the device. The optimization of the wearing mode of a waist ring enables a user to wear a waistband more simply. The optimization of a transverse adjustment function of the waist ring enables the user to quickly adjust the waist ring to avoid biased rotation.

Abstract: The present application provides a thin-walled shell model updating method and system. The method includes converting an influence of fine feature structures in a space shell structure on stiffness and mass equivalently onto a skin and a stiffener, so as to simulate the influence of the fine feature structures on a bearing capacity of a whole structure.

Abstract: A display substrate includes a base substrate, a first light-shielding layer, a plurality of first sub-pixels and a first power line. The first light-shielding layer is disposed on a side of the base substrate, the first light-shielding layer is located at least in a first display area, and has a plurality of openings arranged in an array. The first sub-pixels are disposed at a side of the first light-shielding layer away from the base substrate and are located in the first display area, and orthogonal projections of the first sub-pixels on the base substrate are non-overlapping with orthogonal projections of the openings on the base substrate. The first power line includes a first power bus and a plurality of first power sub-lines, and the first light-shielding layer is electrically connected to the first power line.

Abstract: A product for adsorbing one or more heavy metals from a liquid is disclosed. The product may comprise attapulgite that has been surface functionalized with a surface coating agent that includes one or more mercury affinity functional groups that chemically bond to the attapulgite surface, wherein the weight percentage of components of the product includes: 91-99 wt. % attapulgite and 1-9 wt. % surface coating agent that includes the one or more mercury affinity functional groups. The product has a surface area in the range of 115-145 m2/g as measured using the BET method. The heavy metal includes mercury and/or lead. Also disclosed is a method of producing the product and a method of adsorbing at least one heavy metal in a liquid using the product.

Abstract: Embodiments of this application provide a screen sharing method and a related device. The method may be applied to a first system. The first system includes a first device, a second device, and a third device. The first device communicates with the second device through a first connection, and the first device communicates with the third device through a second connection. The first connection is different from the second connection. The method includes: The first device receives a first operation, where the first operation is used to trigger sharing of a first interface. The second device displays the first interface, and the third device displays the first interface. The first device displays a second interface, where the first interface is different from the second interface.

Abstract: A front housing of the optical-electrical composite connector is axially provided with a through groove passing through the front housing on the front housing, and an inner wall of the through groove is provided with a first groove. A rear housing includes a main body portion and a clamping portion connected to one end of the main body portion. An outer surface of the clamping portion is axially provided with a second groove, the clamping portion is located in the through groove, and the first groove is butted with the second groove to form an accommodation space. One end that is of the through groove and that is away from the main body portion is an optical port. The font housing is provided with an opening connecting to the accommodation space and the outside. The conductive terminal is accommodated in the opening, and the conductive terminal forms an electrical port.

Abstract: The present disclosure relates to microencapsulated compositions comprising one or more hydrophobic materials encapsulated by an encapsulant, wherein the encapsulant comprises one or more modified proteins and/or peptides; and wherein the one or more modified proteins and/or peptides are obtained from a starting protein by subjecting the starting protein to a high shear process, such that the average particle size of the one or more modified proteins and/or peptides is reduced relative to the starting protein.

Abstract: The disclosure relates to a permanent magnet-electromagnet hybrid array type magnetorheological polishing device, comprising a polishing mechanism, a main excitation device arranged on the polishing mechanism, and auxiliary permanent magnet sets used for driving magnetorheological liquid to be recycled. The main excitation device is a permanent magnet-electromagnet hybrid array comprising main excitation permanent magnets and fine-adjustment electromagnetic excitation devices connected with the main excitation permanent magnets. Each fine-adjustment electromagnetic excitation device comprises a coil and a coil retaining pile. The main excitation device further comprises a permanent magnet-electromagnet device connecting plate made from a non-magnetically conductive material.

Abstract: An example method for selectively filtering Wi-Fi signals is presented. A first radio and a second radio of a wireless networking device (WND) are respectively operated on a first channel and a second channel. The first channel and the second channel are respectively within a first sub-band of a first frequency band and second sub-band of a second frequency band. A control unit of the WND may select one of a first filter or a second filter based on the first channel, and one of a third filter or a fourth filter based on the second channel. After the filters are selected, signals over the first channel are communicated through a selected one of the first filter or the second filter, and signals over the second channel are communicated through a selected one of the third filter or the fourth filter.

Abstract: A display module and a touch display device are provided by the present application, which relates to the technical field of displaying. At least one driving chip is provided within the bonding region. The mainboard includes a power-supply chip. For a same driving chip, a resistance value between a first output terminal of the driving chip and the power-supply chip is substantially equal to a resistance value between a second output terminal of the driving chip and the power-supply chip, wherein the first output terminal refers to the output terminal that has the lowest distance to the first side edge, and the second output terminal refers to the output terminal that has the lowest distance to the second side edge. The display module is used to manufacture a touch display device.