Low-temperature geothermal, is 100 degrees below the ground water. People to use low temperature geothermal ground water from the beginning.

China is the first natural geothermal countries. According to historical records, BC 500 – 600 years ago before the Eastern Zhou era, people understood how to use underground hot water bath treatment and irrigation, but also to extract sulfur from the hot springs and other useful elements. To around 500 AD, Li, Jin Yuan Road, “The Truth of” clearly wrote: “the melting rocks out of Hot water, cures Read More…

Introduced in front of computer failure is divided into two categories, namely, “hard failure” and “soft failure” to learn the “hard failure” of the basic diagnosis and treatment, the next will learn “soft failure” of the basic diagnostic and treatment .

Software failure occurs, mainly due to software errors, improper operation of the user, system configuration errors caused by incorrect parameters. Software failure mainly in the software installation, commissioning, operation, maintenance failure, failure generally affect the use of a single software, can lead to serious crashes, the majority of software failures can all be repaired, generally Read More…

Cadmium – nickel battery charging process, with the charge to the battery voltage increases, when the voltage exceeds 1.55V, the electrolyte water electrolysis, precipitation of gas, reduce the charging efficiency, charging efficiency of 85 normal % of. Cadmium – nickel battery charge voltage and charging mechanisms. The greater the charge current, charge voltage higher charge temperature is Read More…

1, according to the different structure can be divided into the following categories.

(1) homojunction solar cell from the same material composition of one or more semiconductor pn junction solar cell. Such as silicon solar cells, gallium arsenide solar cells and so on. Read More…

The battery used in tandem or in series constitute a single cell battery use, according to Faraday’s law, a single unit of time per battery and each electrode is equal to the electricity passed, if the capacity difference between the individual cells, or a single cell in the electrode capacity and other single cell capacity of different electrodes, Read More…