Abstract: A passive integrated transponder (PIT)-based fish school trajectory monitoring method and system for a marine ranch are provided. The method includes: using a PIT reader to obtain PIT tag information of each fish of a target fish school during a monitoring period; generating a three-dimensional (3D) fish school trajectory map of the target fish school; generating a motion sequence of each fish, inputting the motion sequence of each fish into a motion trajectory correction model, and outputting a corrected motion sequence of each fish; generating a first corrected 3D fish school trajectory map of the target fish school during the monitoring period, and generating a second corrected 3D fish school trajectory map; and generating motion information of the target fish school, and feeding back the second corrected 3D fish school trajectory map and the motion information of the target fish school to monitoring personnel.

Abstract: A leg-and-foot device capable of being driven solely contains: a base, a left leg-and-foot massage portion, a right leg-and foot massage portion, a first left drive element and a first right drive element which are connected on the base. A driving segment of the first left drive element is connected with the left leg-and foot massage portion and is configured to drive the left leg-and-foot massage portion to stretch and retract with respect to the base. A driving segment of the first right drive element is connected with the right leg-and foot massage portion and is configured to drive the right leg-and-foot massage portion to stretch and retract with respect to the base.

Abstract: The disclosure provides a cooling solution that evaluates the thermal environment of a computer component based on transient thermal responses of the computer component. The transient thermal responses are generated by measuring the temperature rise of the computer component over a designated amount of time for multiple “good” assemblies and multiple “bad” assemblies to determine a duration and allowable temperature rise needed to set a pass/fail criteria for different failure modes of cooling devices. A cooling device may not be operating as designed due to damage, needed maintenance, missing thermal interface material (TIM), improper installation, etc. From the transient thermal responses, a thermal problem, such as a malfunctioning fan, can be determined and a corrective action can be performed.

Abstract: Disclosed are an anchoring device and an anchoring apparatus. The anchoring device includes a coupling member and two anchoring members. The two anchoring members are arranged on the coupling member at intervals in a first direction. A dimension of the anchoring member in a second direction is a first dimension, the second direction is perpendicular to the first direction. The anchoring member is configured to switch between a first configuration and a second configuration. When the anchoring member is in the first configuration, a dimension of the anchoring member in a direction perpendicular to the first direction is a second dimension. When the anchoring member is in the second configuration, a dimension of the anchoring member in the second direction is a third dimension, and the third dimension is greater than the second dimension and the first dimension.

Abstract: A speaker device and an earphone include a housing, a coil iron support connected to the housing, a moving iron assembly, and a moving coil assembly. The moving iron assembly and the moving coil assembly are disposed on the coil iron support. A cavity is defined in the housing. A periphery of the coil iron support is embedded in the housing. The coil iron support includes a moving coil supporting portion and a moving iron supporting portion disposed on one side of the moving coil supporting portion. The moving iron assembly is partially disposed on the moving iron supporting portion. The moving coil assembly includes a voice diaphragm, a voice coil, a washer, and a magnet that are stacked in sequence. A periphery of the voice diaphragm is fixedly clamped with an inner side of the moving coil supporting portion.

Abstract: A massager for massaging limbs contains: an armrest including two accommodation cavities configured to receive two arms of a user, multiple air bags arranged on a top of a respective one accommodation cavity, and a driver fixed on a bottom of the respective one accommodation cavity. The driver includes a protective shell disposed on the armrest, at least one rotation disc arranged on the protective shell, a drive source, and a transmission mechanism. The drive source is connected with the at least one rotation disc via the transmission mechanism, and a respective one rotation disc includes multiple massage protrusions located outside the protective shell.

Abstract: A dry ice preparation device includes an ice preparation cavity, one or more ice injection valves, an air exhaust valve, and a liquid inlet pipeline. The one or more ice injection valves are disposed on a distal end of the liquid inlet pipeline and are configured to eject liquid carbon dioxide into the ice preparation cavity by turning on a liquid outlet port. The air exhaust valve is disposed between an air exhaust port and the liquid outlet port to enable the liquid outlet port to be in communication with external air through the air exhaust port.

Abstract: An electronic device includes: a panel, including: a first substrate; a second substrate disposed opposite to the first substrate; a light modulation layer disposed between the first substrate and the second substrate; a plurality of first strip electrodes disposed between the first substrate and the light modulation layer; a plurality of second strip electrodes disposed between the second substrate and the light modulation layer; a first electrode disposed between the first substrate and the plurality of first strip electrodes; and a second electrode disposed between the second substrate and the plurality of second strip electrodes, wherein the light modulation layer includes a liquid crystal material and a dye material, and an extension direction of the plurality of first strip electrodes is different from an extension direction of the plurality of second strip electrodes.

Abstract: An intelligent massage chair is provided. The chair includes a chair frame and armrests connected on left and right sides of the chair frame. At least one of the armrests is connected to the chair frame through a flipping device. The flipping device includes a base connected to the chair frame and a flipping fixed seat rotatably connected to the base around a rotation axis extending left and right, the flipping fixed seat is fixed to the at least one of the armrests. When the flipping device flips the armrest to a set position, the chair frame has a side entrance on the side of the armrest. The armrest can be rotated open from the side to form a side entrance for users to sit in the massage chair from the left and right sides, which is convenient for users to sit in the massage chair.