Abstract: Provided are an antenna structure, an array antenna and an electronic device. The antenna structure includes a first substrate, a second substrate and a dielectric layer with an adjustable dielectric constant. The first substrate includes a first base and a first and a second radiation phase shift unit. The second substrate includes a second base and a third and a fourth radiation phase shift unit. Orthographic projections of the first and third radiation phase shift units on the first base at least partially overlap. Orthographic projections of the second and fourth radiation phase shift units on the first base at least partially overlap. A first included angle is formed between extending directions of radiation areas of the first and second radiation phase shift units; a second included angle is formed between extending directions of radiation areas of the third and fourth radiation phase shift units.

Abstract: A display device includes a flexible display panel including a display part and a bonding part, the bonding part being located on the back side of the display part, and a side of the bonding part away from the display part being the bonding side, the driving chip being arranged on the bonding side of the bonding part, and having a first side and a second side opposite in the first direction, where the first direction is perpendicular to the thickness direction; a spacer being disposed on the bonding side of the bonding part, where the spacer is located on one side or both sides of the driving chip in the first direction, and a thickness of the spacer is greater than a thickness.

Abstract: Provided is an antenna. The antenna includes: a first antenna unit and a second antenna unit, wherein the first antenna unit includes a first phase-tuning structure and a first radiation structure, and the second antenna unit includes a second phase-tuning structure and a second radiation structure; wherein a first feed terminal of the first phase-tuning structure is electrically connected to the first radiation structure, and a first feed terminal of the second phase-tuning structure is electrically connected to the second radiation structure; and a feed direction of the first feed terminal of the first phase-tuning structure to the first radiation structure is a first direction, and a feed direction of the first feed terminal of the second phase-tuning structure to the second radiation structure is a second direction, the first direction being different from the second direction.

Abstract: The present disclosure provides a TLC extraction device that uses a simpler device structure and can quickly collect, prepare and analyze samples. An aspect of the present disclosure provides a TLC extraction device including: a sampler having a solvent inlet and a solvent outlet, the solvent outlet having a sharp edge for cutting down a fixed size of adsorbent from an adsorbent layer of TLC plate, the adsorbent being kept between the solvent inlet and the solvent outlet; a solvent injector in communication with the solvent inlet; and a filter that is detachably installed to the solvent outlet.

Abstract: Provided is a dual-polarized antenna.

Abstract: A vehicle step apparatus comprises a first extending and retracting device comprising a first mounting bracket, a first step bracket, and a first arm assembly configured to drive the first step bracket to move between a first extended position and a first retracted position; a second extending and retracting device comprising a second mounting bracket, a second step bracket, and a second arm assembly configured to drive the second step bracket to move between a second extended position and a second retracted position; a step mounted on the first and second step bracket; a first permanent magnet direct current motor mounted on the first mounting bracket and coupled with the first arm assembly to drive the first arm assembly; and a second permanent magnet direct current motor mounted on the second mounting bracket and coupled with the second arm assembly to drive the second arm assembly.

Abstract: A stepping dimming motor structure is provided, including a shell, and further including: a winding frame, which is provided with a coil, wherein a wiring block is arranged on a side circumferential wall of the winding frame; two wiring slots are arranged on the wiring block; each wiring slot corresponds to a wiring tab; a magnetically-conductive ring frame. The above scheme generates a magnetic field by powering up the coil to excite the magnetically-conductive ring frame, thus driving the rotor assembly to rotate; the rotor assembly then drives the push rod to move axially, adjusting headlights; and meanwhile, a fastening effect on lead wire ends of the coil and electrical connection between the lead wire ends of the coil and the wiring tabs are achieved through plugging fit between the wiring tabs and the wiring slots, thereby ensuring the structural reliability and improving the assembling efficiency.

Abstract: A liquid crystal antenna is provided. The liquid crystal antenna includes a liquid crystal layer, a first substrate, a second substrate, a first connection portion and a second connection portion. The first substrate and the second substrate are located on both sides of the liquid crystal layer in a first direction. The first substrate includes a plurality of first control lines, and the second substrate includes a plurality of second control lines. The first connection portion and the second connection portion are located on the same side edge of the liquid crystal antenna and are staggered in the first direction. The first connection portion is electrically connected to the plurality of first control lines, and the second connection portion is electrically connected to the plurality of second control lines.

Abstract: An encryption method includes: receiving cipher data which is binary data; determining target components in a resistive memory array according to values of respective bits in the cipher data; determining current values generated by respective columns of components according to the target components; and generating key data according to the current values generated by the respective columns of components. The present disclosure can effectively reduce computing power and power consumption of an encryption process in an edge device.

Abstract: Disclosed are a winch, a rope guide, and a transmission device having a clutch function. The winch includes a base seat, a reel, a rope guide, a transmission assembly, and a motor. The reel is rotatably provided to the base seat. The rope guide is provided to the base seat. The transmission assembly is connected with the rope guide. The motor is connected with the reel to drive the reel to rotate, and the motor drives the rope guide through the transmission assembly. In the winch according to embodiments of the present disclosure, the rope guide is an active rope guide, bringing about a good rope guiding effect. Moreover, the reel and the rope guide are driven by the same motor, which reduces the number of components and parts, simplifies the structure and control, and lowers costs.

Abstract: The present disclosure discloses a T-shaped three-level overload operating system, including a three-level topology and an overload mode switching system. The topology is connected with a first device group and a second device group which form a T shape; the first device group is designed with an overload capacity, and the second device group is designed with a rated capacity; and the overload mode switching system is configured for being connected to the topology to control the first device group to perform overload two-level operation on the topology, or to control the second device group to perform normal three-level operation on the topology, so that the number of device groups of the overload design can be effectively reduced, and then the cost of the system can be reduced. A working method of the T-shaped three-level overload operating system is further disclosed. The topology can be rapidly switched among working modes according to an output current of the topology.

Abstract: Embodiments of this disclosure disclose an image processing method and apparatus, a terminal, and a storage medium. The method includes: obtaining a to-be-processed negative image and initial color values of pixels in the negative image in a first color space; inverting the negative image to obtain inverted image data, inverted color values of pixels in the inverted image data being determined according to the initial color values of the pixels in the negative image; performing value equalization on intermediate color values of the pixels in a range corresponding to a second color space according to the inverted image data, to obtain digital color values of the pixels; and obtaining digital image data of the negative image according to the digital color values of the pixels.

Abstract: An encryption method includes: receiving cipher data which is binary data; determining target components in a resistive memory array according to values of respective bits in the cipher data; determining current values generated by respective columns of components according to the target components; and generating key data according to the current values generated by the respective columns of components. The present disclosure can effectively reduce computing power and power consumption of an encryption process in an edge device.

Abstract: Disclosed are a winch, a rope guide, and a transmission device having a clutch function. The winch includes a base seat, a reel, a rope guide, a transmission assembly, and a motor. The reel is rotatably provided to the base seat. The rope guide is provided to the base seat. The transmission assembly is connected with the rope guide. The motor is connected with the reel to drive the reel to rotate, and the motor drives the rope guide through the transmission assembly. In the winch according to embodiments of the present disclosure, the rope guide is an active rope guide, bringing about a good rope guiding effect. Moreover, the reel and the rope guide are driven by the same motor, which reduces the number of components and parts, simplifies the structure and control, and lowers costs.

Abstract: A dual-frequency antenna and an electronic device are provided, and belong to the field of communication technology. The dual-frequency antenna includes a first antenna unit and a second antenna unit opposite to each other, and a filtering unit therebetween. An operating frequency band of the first antenna unit is a first frequency band; an operating frequency band of the second antenna unit is a second frequency band; the filtering unit is configured to reflect an electromagnetic wave of the first frequency band and to transmit an electromagnetic wave of the second frequency band; the first antenna unit is configured to receive the electromagnetic wave of the first frequency band and to reflect the received electromagnetic wave of the first frequency band by the filtering unit; and the second antenna unit is configured to receive and reflect the electromagnetic wave of the second frequency band transmitted by the filtering unit.

Abstract: A computing device includes a processor to monitor usage of resources within the computing device. Responsive to the usage of resources being above a threshold, a determination is made that displayed content of a web page from an application includes video or animation content. A determination that the video or animation content is included as part of a background of the displayed content is based on a comparison of sizes between a display screen displaying the content of the web page and the video or animation content. Responsive to the determination that the background includes the video or animation content, the processor no longer plays the video or animation content to reduce resource usage by the application to display the web page.

Abstract: A display device includes a flexible display panel including a display part, a bonding part, and a substrate bending part connecting the display part and the bonding part, the bonding part being located on the back side of the display part, and a side of the bonding part away from the display part being the bonding side, the driving chip being arranged on the bonding side of the bonding part, and having a first side and a second side opposite in the first direction, where the first side is close to the substrate bending part, and the second side is distal to the substrate bending part, the first direction being perpendicular to the thickness direction; a main flexible circuit board, disposed on the second side of the driving chip and connected to the bonding side of the bonding part; a touch layer; and a control flexible circuit board.

Abstract: An antenna, a control method for an antenna, an antenna array and an electronic device are provided, and belong to the field of communication technology. The antenna includes a first tunable dielectric layer between the first dielectric substrate and the second dielectric substrate opposite to each other; a radiation component and at least one first tuning electrode on the first dielectric substrate; at least one second tuning electrode and a reference electrode layer on the second dielectric substrate; orthographic projections of the radiation component, the first tuning electrode and the second tuning electrode on the first dielectric substrate overlap with an orthographic projection of the reference electrode layer on the first dielectric substrate. Orthographic projections of each first tuning electrode and a corresponding second tuning electrode on the first dielectric substrate at least partially overlap with each other, to form a tunable capacitor electrically connected to the radiation component.

Abstract: The present disclosure discloses a T-shaped three-level overload operating system, including a three-level topology and an overload mode switching system. The topology is connected with a first device group and a second device group which form a T shape; the first device group is designed with an overload capacity, and the second device group is designed with a rated capacity; and the overload mode switching system is configured for being connected to the topology to control the first device group to perform overload two-level operation on the topology, or to control the second device group to perform normal three-level operation on the topology, so that the number of device groups of the overload design can be effectively reduced, and then the cost of the system can be reduced. A working method of the T-shaped three-level overload operating system is further disclosed. The topology can be rapidly switched among working modes according to an output current of the topology.

Abstract: Provided are an antenna structure, an array antenna and an electronic device. The antenna structure includes a first substrate, a second substrate and a dielectric layer with an adjustable dielectric constant. The first substrate includes a first base and a first and a second radiation phase shift unit. The second substrate includes a second base and a third and a fourth radiation phase shift unit. Orthographic projections of the first and third radiation phase shift units on the first base at least partially overlap. Orthographic projections of the second and fourth radiation phase shift unit on the first base at least partially overlap. A first included angle is formed between extending directions of radiation areas of the first and second radiation phase shift units; a second included angle is formed between extending directions of radiation areas of the third and fourth radiation phase shift unit.