Abstract: A carbon coated composite includes a core and a carbon coating layer coated outside the core. The density of the carbon coating layer is 1.0 g·cm?3??2?2.0 g·cm?3. The dissolution amount of a core characteristic element of the carbon coated composite is 100 ppm or less. The D50 of the material to be coated with carbon is 1-40 ?m. The particle size distribution span meets 0.5?(D90?D10)/D50?2. A specific surface area is 1-5 m2·g?1. A ratio of the specific surface area to the stacked pore volume is 0.5-2 cm?1. The increase of D50 of the composite after coating is 3 ?m or less. The shell of the carbon coated composite mitigates the volume change of the core. A complete and uniform carbon layer effectively disperses surface charges to form a more stable electric double layer structure.

Abstract: An adjustable desk easy to disassemble comprises: a crossbeam used as a bearing structure of the adjustable desk; two desk legs disposed at two ends of the crossbeam, pivotably connected to the crossbeam and used to stabilize relative positions of the desk legs and the crossbeam through first locking parts; and two brackets disposed at the two ends of the crossbeam, fixed to the crossbeam through second locking parts. When the adjustable desk needs to be assembled or disassembled, the first locking parts and the second locking parts are removed to allow the two desk legs to rotate towards or opposite to each other to complete assembly or disassembly of the adjustable desk.

Abstract: An adjustable desk easy to disassemble comprises: a crossbeam used as a bearing structure of the adjustable desk; two desk legs disposed at two ends of the crossbeam, pivotably connected to the crossbeam and used to stabilize relative positions of the desk legs and the crossbeam through first locking parts; and two brackets disposed at the two ends of the crossbeam, fixed to the crossbeam through second locking parts. When the adjustable desk needs to be assembled or disassembled, the first locking parts and the second locking parts are removed to allow the two desk legs to rotate towards or opposite to each other to complete assembly or disassembly of the adjustable desk.

Abstract: A hand controller has a housing, the housing provided with a plurality of convex keys, wherein the housing has an outside wall provided with a first engagement portion; a cover plate, being in a snap connection with the housing; and a connection assembly, the connection assembly provided with a second engagement portion which is in an engagement connection with the first engagement portion, wherein the engagement between the first engagement portion and the second engagement portion drives the connection assembly to move up and down along the thickness direction of the housing, and the connection assembly is provided with a connection portion, wherein the connection portion is connected with the installation position of the hand controller via a fastener. The hand controller can apply to mounting desks of different thicknesses and improve the universality of the hand controller.

Abstract: A hand controller has a housing, the housing provided with a plurality of convex keys, wherein the housing has an outside wall provided with a first engagement portion; a cover plate, being in a snap connection with the housing; and a connection assembly, the connection assembly provided with a second engagement portion which is in an engagement connection with the first engagement portion, wherein the engagement between the first engagement portion and the second engagement portion drives the connection assembly to move up and down along the thickness direction of the housing, and the connection assembly is provided with a connection portion, wherein the connection portion is connected with the installation position of the hand controller via a fastener. The hand controller can apply to mounting desks of different thicknesses and improve the universality of the hand controller.

Abstract: An article of footwear with an integrated arch strap and eyestays is disclosed. The integrated arch strap provides arch support adjustable by a wearer through the tightening of a lace. Furthermore, the adjustment of the integrated arch strap allows some customization of the width of the footwear.