The working principle block diagram of the loss-wave protection circuit is mainly composed of input limiting, shaping, pulse identification, zero-voltage blocking, voltage detection, execution circuit and test circuit. Its input is connected to the DC output of the rectifier. If the output of ...more...
A few days ago, the China Shipbuilding Ninth Design and Research Institute Engineering Co., Ltd. and the China Shipbuilding Industry Corporation's Planning and Development Department jointly carried out the “Research and Practice of Dust Pollution Prevention and Control Technology for the ...more...
2012 Asian Diesel Vehicle Emissions Forum and Tim Blue Forum…
On March 27, 2012 , the 2012 Asian Diesel Vehicle Emissions Forum and the Tianlan Forum were held at the Beijing Wangfu Peninsula Hotel. The delegates discussed diesel vehicle emission reduction and energy conservation issues. 2012 Asian Diesel Vehicle Emission Forum and Tim Blue Forum The ...more...
Chlorine dioxide leakage in the west of Nanling Chemical Pla…
At 10:14 on June 7, Hunan dual licensing fire brigade received a report: Yun Sky Chemical plant in a warehouse west of chlorine dioxide leak, explosion may occur. After receiving the alarm, the fire brigade quickly dispatched 13 water tankers and a rescue vehicle to the site. At 10:20, the fire b ...more...
Jining Zhongyin Electrochemical Co., Ltd. of Shandong Province has been going smoothly to enter the park. The first phase of the project has invested 1.7 billion yuan and the annual output of 300,000 tons of caustic soda and supporting chlorine products has been built for one year. At present, the ...more...
Remanufacturing: The spring breeze of leveraging the policy …
On June 7, Yang Chunping, director of the Research Center for Circular Economy of the Institute of Economic System and Management of the National Development and Reform Commission, disclosed that the National Twelfth Five-Year Plan for the Development of Recycling Economy will be announced ...more...
Dalian built state-level ship oil spill emergency equipment …
The Maritime Affairs Bureau of Liaoning Province announced at a press conference held in Shenyang on the 5th that the largest state-level ship oil spill emergency response equipment warehouse in northern China has been completed and passed acceptance in Dalian. Wang Yuehui, deputy directo ...more...