Abstract: An open-ear earphone includes a housing, a chamber is provided inside the housing, a speaker is provided inside the chamber and divides the chamber into a front chamber and a rear chamber. The housing is provided with a first sound hole and a second sound hole. The front chamber is communicated to the outside through the first sound hole, and the rear chamber is communicated to the outside through the second sound hole. The rear chamber includes a first volume down chamber and a second volume down chamber communicated to the first volume down chamber, and the first volume down chamber is located between the speaker and the second volume down chamber. The sound wave in backward motion generated by the speaker is transmitted to the outside from the second sound hole after being reduced by the first volume down chamber and the second volume down chamber.

Abstract: An open-ear Bluetooth® earphone includes an earphone body and a support frame. The support frame is configured to be plugged into a cavum concha of a wearer. The earphone body is provided with an audio source, and the support frame is installed on the earphone body and corresponds to the audio source. When in use, the support frame is configured to be firmly plugged into the cavum concha of the wearer to allow the earphone body to be worn on the ear of the wearer. The audio source corresponds to the ear canal of the wearer through the support frame, so that the sound emitted from the audio source is transmitted into the ear canal through the support frame. The audio source is directly opposite of the ear canal through the support frame to shorten the distance between the audio source and the ear canal.

Abstract: A puller includes a first claw and a second claw arranged opposite to each other. The first claw includes a first pulling part, a first limiting part and a first connecting part. The first limiting part includes a first body part, a first notch part and a second notch part. The second claw includes a second pulling part, a second limiting part and a second connecting part. The second limiting part includes a second body part, a third notch part and a fourth notch part. A size of the second pulling part is smaller than or equal to a size of the second notch part.

Abstract: The present invention provides a high-efficient magnesium ion removal system for salt lake brine based on in situ alkali production using bipolar membrane electrochemical process, it is constructed with cathode, cathode cell, anode, anode cell, and anion exchange membranes, bipolar membranes, acid cells, alkali cells, mesh materials for precipitate aggregation, acid-washing cells.

Abstract: A pyram-shaped deep-sea pressure-resistance shell and a design method therefor. The shell comprises a conical shell, an annular combined shell, a cylindrical shell, a flange bolt, and a perforated thick plate; a bottom end of the conical shell is connected with a top end of the annular combined shell, the conical shell being in communication with an interior part of the annular combined shell; the perforated thick plate blocks the bottom end of the annular combined shell, the perforated thick plate and the annular combined shell being connected by means of multiple flange bolts; the cylindrical shell is disposed inside the annular combined shell, a lower end of the cylindrical shell being inserted in a gap between the annular combined shell and the perforated thick plate.

Abstract: A light-emitting diode display panel, a manufacturing method thereof, and an organic light-emitting diode display device are provided. The light-emitting diode display panel includes: a base substrate including a display region and a peripheral region surrounding the display region; a plurality of sub-pixels located in the display region and located at a side of the base substrate; a color-resistance layer located at a side of a second electrode in the sub-pixel away from the base substrate; and a light-blocking structure located in the peripheral region and being an annular structure surrounding the plurality of sub-pixels. The light-blocking structure includes a first light-blocking structure and a second light-blocking structure. The first light-blocking structure includes at least one interval extending in a direction from the display region pointing to the peripheral region. The second light-blocking structure at least fully fills the interval.

Abstract: The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.

Abstract: An ultrasonic probe holder includes a probe holder frame, an arc plate, a follower plate, and a plurality of contacts. The frame can have at least one aperture extending therethrough, open in the downward direction, and defining an open lower end of the frame. The arc plate can be positioned within the aperture, extend between opposed, curved lateral edges, and couple to the frame. The follower plate can be mounted to a lower end of the arc plate and include arms extending laterally outward from a vertical axis in the plane of the arc plate. The contacts can be slidably mounted to the arms of the follower plate and extend in the vertical direction. The arc plate can be constrained in the plane of the frame and to pivot with respect to the frame in response to vertical movement of one or more of the plurality of contacts.

Abstract: The present disclosure provides an image processing method, apparatus, and device, and a storage medium. The method includes determining, in response to receiving a preset identification operation triggered for a capturing frame on a capturing page, a target image having image clarity meeting a preset clarity condition based on the capturing frame on the capturing page. Then, the target image is transmitted to an image identification server for image identifying. Thus, the image processing method provided in the embodiments of the present disclosure can determine a target image having image clarity meeting a preset clarity condition first before image identification and allow an image identification server to perform identification based on the target image which meets the preset clarity condition, thereby the accuracy of image identification can be improved.

Abstract: A packaging box, including: a housing, including a cover body and a seat body, the seat body includes a first recessed portion and a second recessed portion, the cover body is reversibly connected to the seat body, so that the first recessed portion can be covered or exposed; a lifting mechanism, including a load-bearing member and a transmission part, and a reflector that is placed in the seat body and forms a 1 hollow space with the second recessed portion. The load-bearing member is placed in the first recessed portion and reversibly connected to the sidewall of the first recessed portion, the load-bearing member is used to carry items, and the transmission part is placed between the cover body and the load-bearing part so that the load-bearing part can be extended or retracted into the first recessed portion by the overturning of the cover body.

Abstract: Among other things, embodiments of the present disclosure can help to automatically generate images displaying activity-based information and distribute such images to other users, such as members of a social network. The image may be modified based on activity data associated with other users and/or from other activity sensors.

Abstract: A motion platform, a medical bed, and a medical device are provided. The motion platform may include a moveable plate, a first driving mechanism, a second driving mechanism, and a fulcrum mechanism. The first driving mechanism and the second driving mechanism may be connected to the moveable plate at a first support point and a second support point, respectively. The fulcrum mechanism may be connected to the moveable plate at a third support point. The first support point, the second support point, and the third support point may be non-collinear. The first driving mechanism and the second driving mechanism may be configured to cause the moveable plate to move in at least two degrees of freedom relative to the third support point.

Abstract: The present disclosure provide a device. The device may include: a pedestal; a rotation base disposed on the pedestal; an imaging component disposed on the rotation base; and a treatment component disposed on the rotation base. The imaging component and the treatment component may be disposed on a same side of the rotation base, and the imaging component and the treatment component may be configured to rotate around a first rotation axis of the rotation base.

Abstract: A fluid splitter, a fluid end, and a plunger pump are provided. The fluid splitter includes: a body having a shape of column and including a first end, a second end, and a side surface connecting the first end and the second end; a first opening, located at the side surface of the body; a first cavity, located at the first end; a first channel, communicated with the first opening and the first cavity, respectively, the first channel extending from the first opening to the first cavity and being configured to allow fluid to flow therethrough; a second opening, located at the side surface of the body; a second cavity, located at the second end; and a second channel, communicated with the second opening and the second cavity, respectively, the second channel extending from the second opening to the second cavity and being configured to allow fluid to flow therethrough.

Abstract: The present invention relates to a method for measuring the ion nonextensive parameter of plasma includes the following steps: describe the plasma with nonextensive statistical mechanics, obtain the equation describing the relationship between the geodesic acoustic mode frequency and the ion acoustic speed of plasma; collect the measurement data of the geodesic acoustic mode frequencies and plasma temperature in the device where the plasma is to be measured; the obtained equation describing the relationship between the geodesic acoustic mode frequency and the ion acoustic speed of plasma is used to linearly fit the collected measured data of the geodesic acoustic mode frequency and the plasma temperature in the device where the plasma is to be measured to obtain the slope value; based on the derived equation and the obtained slope values, and combining with the safety factor of the device where the plasma is to be measured, the ion nonextensive parameter is solved numerically.

Abstract: A lithium-ion battery includes a positive electrode piece, a negative electrode piece, a separator arranged between the positive electrode piece and the negative electrode piece, and an electrolyte. The positive electrode piece includes a positive electrode current collector, a positive diaphragm and a positive electrode tab which are attached to a surface of the positive electrode current collector. The negative electrode piece includes a negative electrode current collector, a negative electrode diaphragm and a negative electrode tab which are attached to a surface of the negative electrode current collector. The negative electrode diaphragm is provided with a first groove in which the negative electrode tab is arranged. The positive electrode piece opposite to the first groove is provided with a first insulating adhesive tape thereon, and the positive electrode diaphragm around an edge of the first insulating adhesive tape is provided with a first adhesive tape groove.

Abstract: A valve spring holder, a valve box, and a plunger pump. The valve spring holder includes a body part, a first supporting part, a second supporting part, a spring mounting part, and a limiting groove. The first supporting part is connected to a first end part of the body part. The second supporting part is connected to a second end part of the body part. The spring mounting part is connected to a middle part of the body part. The first supporting part includes a first supporting surface, the second supporting part includes a second supporting surface, the first supporting surface and the second supporting surface are in contact with the valve box, and the limiting groove is located in at least one of the first supporting part and second supporting part, and is exposed to at least one of the first supporting surface and second supporting surface.

Abstract: The present disclosure relates to a method and apparatus for controlling charging and heating of a power battery, a medium, a device and a vehicle. The method includes: determining whether activation of a heater to heat the power battery enables a charging rate of the power battery to be accelerated during charging of the power battery; controlling the heater to be activated to heat the power battery, in response to determining that activation of the heater to heat the power battery enables the charging rate of the power battery to be accelerated; and adjusting an operating parameter of the heater to accelerate the charging rate of the power battery.