Abstract: An electrode assembly, a battery cell, a battery, and an electrical apparatus are disclosed. The electrode assembly includes a first electrode plate, the electrode plate includes a current collector and active material layers arranged on the current collector, the active material layer is provided with a plurality of material removal regions at intervals in an extension direction (L) of the first electrode plate, and the material removal region extends in a width direction (Y) of the first electrode plate; the active material layer is provided with a marking portion, a width of the marking portion in the extension direction (L) of the first electrode plate is greater than or equal to a width of the material removal region, and the marking portion spans across the material removal region.

Abstract: Disclosed is a Z-shaped layout fixed-length double-rope grouped closed force system capturing and recycling net system. The system includes a capturing and intercepting assembly which includes a rope group a, a rope group b, a rope group c, and a rope group d that are each wound with two movable wheel groups oppositely arranged, the rope group a between the two movable wheel groups is an intercepting section a, the rope group b between the two movable wheel groups is an intercepting section b, the rope group c between the two movable wheel groups is an intercepting section c, and the rope group d between the two movable wheel groups is an intercepting section d. The disclosure can effectively decrease the lengths of the rope group a1, the rope group b2, the rope group c3 and the rope group d4 and the force and work of traction devices.

Abstract: Disclosed is a psychomotor ability assessment method based on multi-target tracking paradigm, which includes the following steps: analyzing research data of psychomotor ability, determining a plurality of measurement dimensions of psychomotor ability, and designing an experimental task paradigm based on the plurality of measurement dimensions, wherein the experimental task paradigm is used for representing a level of the plurality of measurement dimensions; designing evaluation schemes of the measurement dimension based on the experimental task paradigm; evaluating a ability dimension of a person to be detected based on the evaluation schemes, collecting and processing evaluation data, and calculating a weight value of the ability dimension to obtain an evaluation result of the psychomotor ability.

Abstract: The present invention relates to a substrate of a luminous faceplate of a color projection cathode ray tube and a luminous faceplate which is composed of this substrate. The substrate consists of transparent polycrystalline material, and the luminous faceplate comprises a transparent polycrystal substrate and a luminous layer which is formed thereon. The luminous faceplate using the substrate of the present invention has an advantage over the prior art in the volume of a product, operating power, manufacturing cost, and resolution and so on. Thus, it is widely used in the field of color projection TV, advertisement display and so on.