Abstract: A thermoplastic polyolefin composition comprises: (A) a polypropylene polymer; (B) an elastomer component; (C) an additive component; and (D) a scavenger component comprising a polyacetoacetate compound having the Formula (I) defined herein and calcium carbonate. And an article is made from the thermoplastic polyolefin composition.

Abstract: A variable force key, including a housing, a central shaft, and a magnetic ring, the central shaft extends into the housing, the top end of the center shaft is fixedly provided with a key cap seat, the central shaft can reciprocate in the housing in the vertical direction, the bottom end of the central shaft is fixedly provided with a limit member, the outer wall or inner wall of the bottom end of the limit member is provided with a flange, the magnetic ring sleeves the outer wall of the limit member or is arranged inside the limit member and located at the upper end of the flange. The variable force key further includes an electromagnet or a hollow coil, which is arranged at the bottom in the housing, and when the central shaft moves downward, the electromagnet or the hollow coil can penetrate inside the limit member.

Abstract: A magnetic press key includes a housing and a central shaft body disposed in the housing, wherein the bottom of the central shaft body is extended into the housing, and the central shaft body can reciprocate in the vertical direction in a base after the key cap seat is pressed, a first magnetic element is provided on the upper section of the central shaft body, a second magnetic element which can move up and down is provided under the coaxiality of the first magnetic element, and a third magnetic element is provided in the housing. The first magnetic element and the second magnetic element generate repulsive or attractive magnetic force, and the magnitude of the repulsive or attractive magnetic force can be adjusted by changing the magnitude of the energizing current of the energized coil, so that the use hand feeling of the key cap seat is improved.

Abstract: A variable force key, comprising a housing, a central shaft, and a magnetic ring, the central shaft extends into the housing, the top end of the center shaft is fixedly provided with a key cap seat, the central shaft can reciprocate in the housing in the vertical direction, the bottom end of the central shaft is fixedly provided with a limit member, the outer wall or inner wall of the bottom end of the limit member is provided with a flange, the magnetic ring sleeves the outer wall of the limit member or is arranged inside the limit member and located at the upper end of the flange. The variable force key further comprises an electromagnet or a hollow coil, which is arranged at the bottom in the housing, and when the central shaft moves downward, the electromagnet or the hollow coil can penetrate inside the limit member.

Abstract: A magnetic press key includes a housing and a central shaft body disposed in the housing, wherein the bottom of the central shaft body is extended into the housing, and the central shaft body can reciprocate in the vertical direction in a base after the key cap seat is pressed, a first magnetic element is provided on the upper section of the central shaft body, a second magnetic element which can move up and down is provided under the coaxiality of the first magnetic element, and a third magnetic element is provided in the housing. The first magnetic element and the second magnetic element generate repulsive or attractive magnetic force, and the magnitude of the repulsive or attractive magnetic force can be adjusted by changing the magnitude of the energizing current of the energized coil, so that the use hand feeling of the key cap seat is improved.

Abstract: A system and method for managing inventory dynamically. The system includes personal computers (10), a central server (11), a central database (12), a web server (13), a carrier information system (14), and branch servers (15). The personal computers are located in various departments of a manufacturer and linked to the central server, for users to obtain and manage inventory information. The central database is linked to the central server for storing inventory information. The web server is linked to the central database, for relevant personnel of clients and carriers to obtain real-time inventory information. The carrier information system is linked to the central server, for transmitting information on in-transit inventory to the central server during transportation. The branch servers are located in overseas hubs/factories of the manufacturer and linked to the central server, for sending information on any changes in inventory in the hubs/factories to the central server.