Abstract: A computing cluster includes a plurality of computing nodes. A method includes: obtaining an execution characteristic parameter of an application; obtaining, based on the execution characteristic parameter of the application and a load model, running time periods of the application when the application runs on different computing nodes, where the different computing nodes have different configurations; and determining, according to a preset policy, a configuration of a computing node that executes the application.

Abstract: A method for packaging a semiconductor structure, a packaging structure, and a chip. The method includes: forming the semiconductor structure on a SOI chip, where the semiconductor structure includes an edge coupler or a cavity structure; forming, through PECVD, silicon oxide on a surface of the semiconductor structure, where the surface is provided with an opening of a trench; and performing subsequent packaging. A characteristic of low step coverage of the PECVD is utilized for sealing an opening of a trench of the semiconductor structure, and addressed is an issue of a device failure due to the trench blocked by a packaging material in subsequent packaging.

Abstract: A negative ionizer air purifier is provided. It includes a power adapter, a high-voltage generator and discharge terminals. A first input terminal of the power adapter connects to the live wire of the AC mains, a second input terminal connects to the naught wire, and the third input terminal connects to the earth wire. The power adapter converts an AC voltage inputted through its first and second input terminals to a low DC voltage and outputs it to the high-voltage generator, which further boosts the low DC voltage to a high DC voltage and outputs it. The first output terminal of the high-voltage generator connects to the discharge terminals, and the second output terminal connects to a reference earth and also to the third input terminal of the power adapter, where the reference earth refers to the housing of the negative air purifier.

Abstract: A negative ionizer air purifier is disclosed and it includes a housing, discharge terminals and a fan. The housing is defined with receiving holes corresponding to the discharge terminals, which are disposed through the respective receiving holes. The fan is disposed inside the housing, on which is provided with airflow passages through which the airflow produced by the fan can drive the air near the discharge terminals to move. Thus, the speed of the airflow surrounding near the discharge terminals can be accelerated, such that more air which is not negatively charged can fill in the working area in the vicinity of the discharge terminals, and the air that is already negatively charged can be driven away as quickly as possible, hence the efficiency of the negative ionizer air purifier can be significantly improved.