Abstract: The present disclosure provides an energy storage system control method, device, and energy storage system, which relate to the technical field of photovoltaic. The energy storage system control method according to the present disclosure includes: acquiring a PV voltage, a battery voltage and a grid-side voltage, determining a bus voltage reference value according to the PV voltage, the battery voltage and the grid-side voltage, and determining a phase shifting angle reference or a frequency reference according to the bus voltage reference value; acquiring a current on battery side, and determining a bridge arm phase shifting angle change amount or frequency change amount according to a low-frequency component of the current on battery side needing to be suppressed; determining a bridge arm phase shifting angle according to the phase shifting angle reference and the bridge arm phase shifting angle change amount.

Abstract: An electromagnetic-wave radiation system includes: a first metal substrate; a second metal substrate, opposite to the first metal substrate; an electromagnetic wave transmission component, between the first metal substrate and the second metal substrate; where the electromagnetic wave transmission component includes a first glass substrate and a second glass substrate arranged opposite to each other, a liquid crystal layer between the first glass substrate and the second glass substrate, and a plurality of electromagnetic wave transmission structures on a side of that first glass substrate facing the liquid crystal layer; the first glass substrate is close to the first metal substrate; and an electromagnetic shielding structure, between the electromagnetic wave transmission component and the first metal substrate.

Abstract: A Haina polysaccharide (HPS) and a preparation method and use thereof, and an anticoagulant drug and/or an antithrombotic drug targeting an intrinsic coagulation pathway are provided, relating to a technical field of pharmaceuticals. The HPS is a fucosylated chondroitin sulfate polysaccharide; the HPS has a weight-average molecular weight of 90,000 to 130,000, where a molar ratio of glucuronic acid, N-acetyl-D-galactosamine, and fucose is in a range of 1:0.8-1.2:0.5-0.8; and a sulfate group in the HPS has a mass percentage of 25% to 40%. The HPS can target a terminal rate-limiting enzyme in the intrinsic coagulation pathway (iFXase), with insignificant effects on coagulation factors in other coagulation pathways, thereby achieving anticoagulation without bleeding.

Abstract: A step, a step device and a vehicle are provided. The step includes a plurality of step segments, at least one connection step segment and a fastener, adjacent step segments include a first step segment and a second step segment, a first end of the connection step segment is slidably and detachably connected to the first step segment, a second end of the connection step segment is slidably and detachably connected to the second step segment, and the fastener is configured to fasten the connection step segment and the first step segment and to fasten the connection step segment and the second step segment.

Abstract: The present disclosure provides a radio frequency apparatus, an antenna and an electronic device, and belongs to the field of communication technology. The radio frequency apparatus includes first and second dielectric substrates opposite to each other, first and second phase shifting structures between the first and second dielectric substrates; wherein the radio frequency apparatus further includes a first connection electrode and a second connection electrode; the first phase shifting structure and the second phase shifting structure each have a first end and a second end, the first ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the first connection electrode; the second ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the second connection electrode, to form a ring circuit structure.

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: Disclosed are a side bar, a step assembly comprising a side bar, and a vehicle having a step assembly, in accordance with the present technology. In some embodiments, a side bar includes a plurality of side bar body segments, each of the plurality of side bar body segments has a first end and a second end in a longitudinal direction of the side bar body segment, two adjacent side bar body segments of the plurality of side bar body segments are a first side bar body segment and a second side bar body segment, and a first end of the first side bar body segment and a second end of the second side bar body segment are opposite to each other and detachably connected.

Abstract: An adjustable antenna array and an electronic apparatus are provided. The adjustable antenna array includes: a first substrate and a second substrate opposite to each other, and antenna sub-arrays in an array. Each of at least some antenna sub-arrays includes a phase shifter, a power division feeding network, and a plurality of radiating units. The phase shifter and the power division feeding network are between the first substrate and the second substrate. At least some radiating units are connected to the phase shifter through the power division feeding network. Antenna patterns corresponding to the plurality of radiating units at least include patterns on a side of the second substrate away from the first substrate. An area of an orthographic projection of the power division feeding network on the first substrate is smaller than an area of an orthographic projection of the phase shifter on the first substrate.

Abstract: A method is described for operating a motorized vehicle step that comprises driving, by a first motor assembly, a first step bracket to move a step, coupled to the first step bracket, between a first extended position and a first retracted position; driving, by a second motor assembly, a second step bracket to move a step, coupled to the second step bracket, between a second extended position and a second retracted position, wherein the second extended position is aligned with the first extended position, and wherein the second retracted position is aligned with the first retracted position; and retaining, by the first motor assembly and the second motor assembly, the first step bracket and the second step bracket in the first retracted position and the second retracted position, respectively, by a reverse self-locking effect of the first motor assembly and the second motor assembly, respectively.

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: A video playing method and apparatus, and a device and a storage medium are disclosed. The method includes: playing a first video, wherein first background music in the first video is similar music matching with reference music in a preset music dimension; in response to a first switching operation triggered on the first video, switching the first video to a second video, and playing the second video, wherein second background music in the second video is similar music that matches the reference music in a preset music dimension and is different from the first background music.

Abstract: A video playing method and apparatus, and a device and a storage medium are disclosed. The method includes: presenting a target music page corresponding to target music, wherein the target music page includes a video recommendation control; in response to a trigger operation acting on the video recommendation control, playing a first video in a video recommendation page, wherein first background music in the first video is similar music that matches the target music in a preset music dimension.

Abstract: An antenna includes first and second phase adjustment structures, first and second feed lines, and a first radiation structure. The first phase adjustment structure includes first and second transmission lines, and the second phase adjustment structure comprises third and fourth transmission lines. Each of the first and second feed lines has a first end and a second end. The first end of the first feed line, the second end of the first feed line, the first end of the second feed line, and the second end of the second feed line are electrically connected to the first transmission line, the second transmission line, the third transmission line, and the fourth transmission line, respectively. The first and second feed lines are both electrically connected to the first radiation structure, and a feed direction of the first feed line is different from a feed direction of the second feed line.

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: A protective shell for a vehicle winch includes a first shell and a second shell. The first shell has a first end and a second end that are oppositely arranged in a first direction. The first end of the first shell is detachably connected to a rope guide of the vehicle winch. The first shell includes a through hole penetrating the first shell along the first direction and configured to accommodate at least a part of a buffer member of the vehicle winch. The second shell is detachably connected to the second end of the first shell to open and close the through hole.

Abstract: In accordance with an embodiment, a method includes receiving, on a first Bluetooth link between a first gateway and a first Bluetooth device, a first Bluetooth message sent by the first Bluetooth device; encapsulating, using a transport protocol adapted to a non-Bluetooth link between the first gateway and a second gateway, the first Bluetooth message to obtain a second Bluetooth message; and sending the second Bluetooth message to the second gateway on the non-Bluetooth link, wherein the second gateway decapsulates the second Bluetooth message using the transport protocol to obtain the first Bluetooth message, and sends the first Bluetooth message to a second Bluetooth device on a second Bluetooth link with the second Bluetooth device, wherein the non-Bluetooth link is a wireless local area network link or a wired link.

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: The present disclosure provides a radio frequency apparatus, an antenna and an electronic device, and belongs to the field of communication technology. The radio frequency apparatus includes first and second dielectric substrates opposite to each other, first and second phase shifting structures between the first and second dielectric substrates; wherein the radio frequency apparatus further includes a first connection electrode and a second connection electrode; the first phase shifting structure and the second phase shifting structure each have a first end and a second end, the first ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the first connection electrode; the second ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the second connection electrode, to form a ring circuit structure.

Abstract: Disclosed is a ladder assembly and a vehicle with a ladder assembly. In some aspects, the ladder assembly includes a mounting frame, a first ladder frame, and a second ladder frame, wherein the first ladder frame is pivotally connected with the mounting frame so that the first ladder frame swings between a stowed position and a deployed position relative to the mounting frame, and the second ladder frame is slidably connected with the first ladder frame so that the second ladder frame moves between an extended position and a retracted position relative to the first ladder frame.