Abstract: A European standard-based double-gun high-power quick charging system and method are disclosed. The system includes a battery management system, and at least two paths composed of corresponding charging communication modules, chargers and high-voltage charging loops, each of the chargers connected to at least one charging gun; the battery management system independently controls the charging communication module and high-voltage charging loop, and performs mapping management on a control signal and high-voltage charging loop; information interaction between different charging control units and chargers is carried out independently.

Abstract: A semiconductor power module includes: a substrate having a first direction and a second direction that are orthogonal to each other; a first conductive region, a second conductive region, a third conductive region and a fourth conductive disposed on the substrate that are spaced apart from each other and arranged in sequence along the first direction; a first power chip and a second power chip. Each of the first conductive region, the second conductive region, the third conductive region and the fourth conductive region extends along the second direction, the first and third conductive regions are configured to receive a direct current signal, and the fourth conductive region is configured to transmit an alternating current signal. The first power chip is electrically connected to each of the first and second conductive regions, the second power chip is electrically connected to each of the second, third, and fourth conductive regions.

Abstract: A semiconductor power module, a motor controller, and a vehicle are disclosed. The semiconductor power module includes: a substrate; a first conductive region, a second conductive region, a third conductive region and a fourth conductive region that are disposed on the substrate; a first power chip, a second power chip and a third power chip. The first conductive region and the second conductive region extend along the first direction of the substrate and are arranged along the second direction of the substrate, the third conductive region and the fourth conductive region are located between the first conductive region and the second conductive region and are arranged along the first direction. The first conductive region, the second conductive region and the third conductive region are configured to transmit a direct current signal, and the fourth conductive region is configured to transmit an alternating current signal.

Abstract: The present disclosure describes a crown spring terminal, comprising: two connection bands respectively located at two ends of the crown spring terminal; and a plurality of spring lamellae arranged between the two connection bands and electrically connected to at least one of the two connection bands, wherein the plurality of spring lamellae comprise: simply supported beam and cantilever beam; and connection portion provided between at least one pair of adjacent simply supported beam and cantilever beam, to be used for providing electric connection between the at least one pair of adjacent simply supported beam and cantilever beam.

Abstract: A European standard-based double-gun high-power quick charging system and method are disclosed. The system includes a battery management system, and at least two paths composed of corresponding charging communication modules, chargers and high-voltage charging loops, each of the chargers connected to at least one charging gun; the battery management system independently controls the charging communication module and high-voltage charging loop, and performs mapping management on a control signal and high-voltage charging loop; information interaction between different charging control units and chargers is carried out independently.

Abstract: The present invention provides a method for preparing hydrophilic polymer foam. The method comprises a step of providing an isocyanate functionalized prepolymer (A) and a step of foaming and curing the prepolymer (A). The prepolymer (A) is prepared by reacting diisocyanate (A1) and polyether polyol (A2), wherein the diisocyanate (A1) is selected from any one and a combination of 1,4-butyl diisocyanate (BDI), lysine diisocyanate (LDI) and 1,5-pentyl diisocyanate (PDI); the polyether polyol (A2) is a copolymer of ethylene oxide (EO) and propylene oxide (PO) and/or butylene oxide (BO); the ethylene oxide has a weight percentage of about 50%-100% in the polyether polyol, and has an OH functionality degree of 3-6, a hydroxyl value of about 21 mg KOH/g-168 mg KOH/g and a number-average molecular weight of about 1000 g/mol to about 8000 g/mol; and NCO content in the prepolymer (A) is 1%-10%.

Abstract: The present invention provides a method for preparing hydrophilic polymer foam. The method comprises a step of providing an isocyanate functionalized prepolymer (A) and a step of foaming and curing the prepolymer (A). The prepolymer (A) is prepared by reacting diisocyanate (A1) and polyether polyol (A2), wherein the diisocyanate (A1) is selected from any one and a combination of 1,4-butyl diisocyanate (BDI), lysine diisocyanate (LDI) and 1,5-pentyl diisocyanate (PDI); the polyether polyol (A2) is a copolymer of ethylene oxide (EO) and propylene oxide (PO) and/or butylene oxide (BO); the ethylene oxide has a weight percentage of about 50%-100% in the polyether polyol, and has an OH functionality degree of 3-6, a hydroxyl value of about 21 mg KOH/g-168 mg KOH/g and a number-average molecular weight of about 1000 g/mol to about 8000 g/mol; and NCO content in the prepolymer (A) is 1%-10%.

Abstract: A cycloheptane derivative as represented by formula (I), and preparation method and use thereof; the compound has photostability and thermostability, wide nematic phase and liquid crystalline state temperature range, and good low-temperature intersolubility, and particularly has low rotary viscosity ?1 and good dielectric anisotropy (??>0).

Abstract: A cycloheptane derivative as represented by formula (I), and preparation method and use thereof; the compound has photostability and thermostability, wide nematic phase and liquid crystalline state temperature range, and good low-temperature intersolubility, and particularly has low rotary viscosity ?1 and good dielectric anisotropy (??>0).

Abstract: A method, computer program product, and system that enable automated creation of operating system handles in response to storage access control changes. A determination is made of the storage array LUNs to which a host has access control permission. Those storage array LUNs and the array port WWN are provided to the host so that the host can efficiently create an OS handle. Each LUN is associated with a target assigned by the host. Configuration information for the host is automatically changed to include the association between the LUN and the target. The host is re-initialized using the configuration information such that an operating system handle is created for the association.