Abstract: A novel type of cationic lipid and PEGylated derivative thereof, a cationic liposome and a cationic liposome-nucleic acid pharmaceutical composition containing the cationic lipid and formulation thereof include an ionizable lipid compound of the general formula (1). This compound is slightly ionized or neutral at physiological pH but undergoes greater ionization under acidic conditions, exhibiting lower toxicity in the systemic circulation and improved endosomal escape ability. The compound's polar head contains an ionizable tertiary amine group along with a side chain containing functional groups, while the tail chains may include linking groups that are easily degraded. Cationic liposomes containing the compound have a better ability to complex with nucleic acid drugs, higher stability in serum, no apparent cytotoxicity, and high transfection efficiency.

Abstract: An example method of entitling software in a cloud includes: receiving, from an entitlement agent of the software, an entitlement request at a first entitlement proxy of an entitlement service executing in the cloud; determining, by the entitlement proxy, an entitlement of the software in response to the entitlement request based on an entitlement specification, the entitlement specification provided by an entitlement root of the entitlement service; and sending, by the entitlement proxy, the entitlement to the entitlement agent for application to the software.

Abstract: A stacked-type electrode assembly, a battery cell, a battery, and an electrical device are disclosed. The stacked-type electrode assembly includes a first electrode plate and a second electrode plate of opposite polarities. The first electrode plate and the second electrode plate are stacked along a first direction. The first electrode plate includes a first coated region and a first blank region arranged along a second direction. The first blank region includes a first connecting portion and a first tab portion. The first connecting portion connects the first coated region and the first tab portion. A dimension of the first connecting portion is larger than a dimension of the first tab portion along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

Abstract: Example methods and systems for blockchain-based licensing as a service are described. In one example, a computer system may receive a first request to obtain a first license associated with a first product from a first client system. In response, the computer system may (a) select a first blockchain from multiple blockchains, and (b) generate and store a first non-fungible token (NFT) on the first blockchain to issue the first license. Further, the computer system may receive a second request to obtain a second license associated with the first product or a second product from a second client system. In response, the computer system may (a) select a second blockchain from multiple blockchains, and (b) generate and store a second NFT on the second blockchain to issue the second license.

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.