Abstract: Provided are a battery holder, a power transfer device, an electric vehicle and an installation method for electric vehicle. The battery holder includes a fixing bracket, the fixing bracket has an upper-position accommodation cavity, an upper-position sensor is arranged in the upper-position accommodation cavity, the upper-position sensor is used for detecting the supporting portion of the battery pack, so as to determine whether the battery pack has been installed in place relative to the battery holder in the height direction of the electric vehicle; and/or, the fixing bracket has a front-position accommodation cavity, a front-position sensor is arranged in the front-position accommodation cavity, the front-position sensor is used to detect the supporting portion of the battery pack, so as to determine whether the battery pack is installed in place relative to the battery holder in the length direction of the electric vehicle.

Abstract: A ridge fluidic device comprising: a substrate and a fluidic component comprising at least one fluidic channel, wherein the at least one fluidic channel is adapted to conduct a fluid and retain the fluid within the at least one fluidic channel: wherein the at least one fluidic channel comprises porous material having a hydrophilic surface; and wherein the at least one fluidic channel is formed on the substrate via a deposition process.

Abstract: Some examples relate to locally storing a chat conversation history at an on-premises data center. As one example, a system can receive a chat message from a first client device of a first participant in a chat conversation. In response to receiving the chat message, the system can determine a data center associated with the first participant. The system can then transmit the text chat message to a server node in the data center. The server node can be configured to transmit a command to a database system of the data center. The command can be configured to cause the database system to store a copy of the text chat message in a chat log associated with the chat conversation. The system can also transmit the text chat message to a second client device of a second participant in the chat conversation.

Abstract: The present application provides two dimensional benzo[4,5]imidazo[2,1-a]isoindole incorporated non-fullerene electron acceptors having the structure of Formula I (I), and processes for the synthesis and manufacture thereof. Also provided are semiconductor materials, polymers, oligomers, films and membranes incorporating the non-fullerene acceptor of Formula (I), and the optoelectronic devices made therefrom.

Abstract: An example method of deploying a hypervisor to a host in a public cloud includes: obtaining, by a deployment service, a prototype hypervisor image from shared storage; obtaining, by the deployment service, configuration information for the host and a physical network of the public cloud to which the host is attached; customizing, by the deployment service, the prototype hypervisor image in response to the configuration information to generate a customized hypervisor image; storing, by the deployment service, the customized hypervisor image in the shared storage in a manner accessible by the public cloud; and invoking a deployment application programming interface (API) of the public cloud to retrieve and install the customized hypervisor image to the host.

Abstract: A foldable ultrathin glass article includes an ultrathin chemically-tempered foldable glass substrate having a thickness of approximately 100 microns or less and a compressive surface stress of at least 100 MPa. A single-layer hard coating is bonded to the first and/or second surface of the ultrathin tempered glass foldable substrate without an adhesive layer. The hard coating includes at least one silsesquioxane having a silicon-oxygen core framework directly bonded to the ultrathin tempered glass foldable substrate. The impact resistance defined by a maximum pen drop height without glass failure is at least four times greater than the ultrathin tempered glass foldable substrate without the hard coating. The hard coating has a surface hardness of at least 7H surface hardness and has a hydrophobic surface with a water contact angle of at least 100°. The coating has a transparency of at least 98 percent compared to uncoated substrates.

Abstract: A method for processing communication range information and a terminal are provided. The method includes: receiving the communication range information of a service data unit from an application layer; determining target information according to the communication range information; and transmitting the target information to a base station.

Abstract: A battery-swapping and encryption system and method. The battery-swapping and encryption system comprises an encryption device (12). The encryption device (12) is used to receive a swapping-complete signal, and to set a swapping-authorized signal after receiving the swapping-complete signal. The swapping-complete signal is used to indicate that an electric vehicle has completed battery swapping in an authorized battery-swapping facility. The encryption device (12) is further used to store the swapping-authorized signal. The battery-swapping and encryption system and method can be used to detect whether battery swapping performed by a user conforms to operation regulations, thereby ensuring that batteries of a battery-swapping station circulate within the station itself without being lost.

Abstract: Provided are a battery holder, a power transfer device, an electric vehicle and an installation method for electric vehicle. The battery holder is mounted on the body of the electric vehicle to fix the battery pack, the battery holder includes a plurality of supporting devices, the plurality of supporting devices are distributed on both sides of the fixing bracket in the length direction of the fixing bracket; in the length direction of the fixing bracket, both sides of the fixing bracket are both arranged with the lock mechanism, the lock mechanism is a primary lock mechanism and a secondary lock mechanism; the secondary lock mechanism is used to provide a secondary locking function or a locking protection function for the battery pack, when the primary lock mechanism fails, it is used to prevent the battery pack from falling.

Abstract: A modular multilevel converter system, and a voltage detection method and an open-circuit fault diagnosis method thereof are disclosed. The modular multilevel converter system includes: N sub-modules sequentially cascaded, where N is an integer greater than or equal to 2, each of the sub-modules comprising at least one bridge arm and a capacitor connected in parallel to the bridge arm, the capacitor having a positive terminal and a negative terminal; and a voltage detection unit for detecting a voltage between at least two adjacent sub-modules in the N sub-modules, the voltage detection unit being connected between the positive terminal of the capacitor of the first sub-module and the negative terminal of the capacitor of the last sub-module in the at least two sub-modules.

Abstract: This disclosure provides an antenna system. The antenna system includes a first antenna and a second antenna. The first antenna includes a first radome, a first radiating assembly, and a feed network. The second antenna includes a second radome and a second radiating assembly. The first radome has a first outer surface. The first outer surface has a groove. The feed network is disposed on a side part of the groove, and the feed network is disposed in the first radome and is connected to the first radiating assembly. The second radome has a second outer surface, the second radiating assembly is disposed in the second radome, and at least a part of the second outer surface extends into the groove. In the antenna system provided in this disclosure, when the first antenna and the second antenna are used in combination, a thickness size is not significantly increased.

Abstract: An on-chip Fourier transform spectrometer based on a double-layer spiral waveguide comprises, in order, a waveguide input coupler, a 1×N optical splitter, N double-layer waveguide Y-branch structures, N double-layer spiral waveguides with incremental lengths, N double-layer waveguide Y-branch structures arranged in opposite directions, and N germanium-silicon detectors. The group index difference between the odd mode and the even mode in the double-layer waveguide makes the double-layer spiral waveguide function like an asymmetric Mach-Zehnder interferometer. N double-layer spiral waveguides with incremental lengths are used to achieve a spatial heterodyne based Fourier transform spectrometer. Spectral reconstruction from the measured interference fringes can be achieved by a regression algorithm.

Abstract: The present disclosure provides an annular anchor recycling instrument and an annular anchor recycling method, relating to the technical field of ocean engineering. The annular anchor recycling instrument includes a recycling tube, a pump body assembly, a lifting portion and an installation portion. One end of the recycling tube is provided with a cover body, and the other end of the recycling tube is configured to be an open end for cooperating with the top of the annular anchor. The pump body assembly is arranged on the cover body, and used to boost pressure to the interior of the recycling tube. The lifting portion is arranged on the cover body, and used to connect with a hoist. The installation portion are arranged on the cover body, and used to connect with the anchor chain on the annular anchor.

Abstract: The present disclosure provides an annular anchor installing instrument and an annular anchor installing method, relating to the technical field of ocean engineering. The annular anchor installing instrument includes an installation tube, a pump body assembly, a lifting portion and an installation portion. One end of the installation tube is provided with a cover body, and the other end of the installation tube is configured to be an open end for cooperating with the top of the annular anchor. The pump body assembly is arranged on the cover body, and used to vacuum the interior of the installation tube. The lifting portion is arranged on the cover body, and used to connect with a hoist. The installation portions are removably arranged on the cover body, and used to connect with the hoist and the anchor chain of the annular anchor, respectively.

Abstract: The present disclosure provides an annular anchor, a method for calculating antitorque bearing strength thereof and an installing and recycling assemble for the anchor, relating to the technical field of ocean engineering. The annular anchor includes an anchor body opened at its upper and lower ends, and a connection portion arranged on the outer side wall of said anchor body for connecting with parts to be moored. The annular anchor provided by the present disclosure omits the top cover as the structure prevailing in the traditional suction anchor, avoiding the drawback of installing the traditional suction anchor on the seabed, instead the annular anchor can be installed to a certain depth below the seabed. During the descent, there is no need to take into account the resistance caused by the top cover, so that the annular anchor can be installed simply and quickly.

Abstract: A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an I2 lower than 2 g/10 min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an I2 greater than or equal to 2 g/10 min; wherein the first polyethylene composition has an I2 from 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.

Abstract: Embodiments of this application provide a radiation apparatus and a multi-band array antenna, and relate to the field of antenna technologies. The radiation apparatus includes a radiation module, a first conductor balun, and a second conductor balun. The first conductor balun is mechanically connected to the second conductor balun under the radiation module. The radiation module includes a first radiation unit and a second radiation unit in a +45° polarization direction, and a third radiation unit and a fourth radiation unit in a ?45° polarization direction. The first conductor balun is configured to feed a first differential signal to the first radiation unit and the second radiation unit. The second conductor balun is configured to feed a second differential signal to the third radiation unit and the fourth radiation unit. The first conductor balun and the second conductor balun are disposed in the same plane.

Abstract: Disclosed are a helium detection device and a helium detection equipment. The helium detection device includes a helium injection mechanism, a replacing mechanism and a finger-clamp mechanism, a sealing nozzle can be plugged into one end of a helium injection tube of the helium injection mechanism, and the finger-clamp mechanism includes a clamping assembly capable of clamping or releasing the sealing nozzle.

Abstract: Provided is a battery swapping station, comprising: a battery swapping chamber, charging chambers and a first expansion compartment, wherein the battery swapping chamber is used for battery replacement for an electric vehicle; the charging chambers are located on left and right sides of a vehicle parking position in the battery swapping chamber and used for charging and discharging batteries; and the first expansion compartment is located above the battery swapping chamber, and the first expansion compartment is provided with an extension end that extends from the above of the battery swapping chamber in a running direction of the electric vehicle. The first expansion compartment enlarges the internal space of the battery swapping station, so as to provide more potential to allow the battery swapping station to have more functions.