Abstract: A brake system includes a brake master cylinder assembly that is configured to connect to a brake pedal, and includes a master cylinder housing and a master cylinder piston being moveable inside the master cylinder housing and defining a compression chamber inside the master cylinder housing. A displacement sensor is mounted on the brake master cylinder assembly. An electro-hydraulic assembly is disposed separately from the brake master cylinder assembly, the electro-hydraulic assembly and the brake master cylinder assembly are connected by a connecting oil pipe and are in communication by a brake fluid in the connecting oil pipe, and the electro-hydraulic assembly is configured to connect to a wheel brake. A controller is connected to the displacement sensor and the electro-hydraulic assembly, and controls, according to an action of the brake pedal or a brake command, the electro-hydraulic assembly to output the brake fluid to the wheel brake.

Abstract: A portable rapid detection device for heavy metal ions includes a card electrode and a thin-layer flow cell, wherein a three-electrode system of the card electrode is inserted in a micro-channel of the thin-layer flow cell; and heavy metal ions are detected by using an anodic stripping voltammetry (ASV), a solution to be detected flows by the surface of a working electrode in the micro-channel, and heavy metals are enriched and stripped on the surface thereof.

Abstract: A portable rapid detection device for heavy metal ions includes a card electrode and a thin-layer flow cell, wherein a three-electrode system of the card electrode is inserted in a micro-channel of the thin-layer flow cell; and heavy metal ions are detected by using an anodic stripping voltammetry (ASV), a solution to be detected flows by the surface of a working electrode in the micro-channel, and heavy metals are enriched and stripped on the surface thereof.