National Day was not so easy for Ling Zifan, 14 years old. He just got a national utility model patent with a wind energy LED street light, and he is busy attending the 25th Hangzhou Youth Science and Technology Innovation Competition in November. “Now is writing a paper for this in ......
A Silicon Bipolar Broadband PLL Building Block Integrated Circuit Abstract: A broadband phase-lock loop (PLL) building block integrated circuit (IC) that can accommodate signal frequencies from 0.5GHz to 9GHz is presented. The design integrates a prescaler with selectable div ......
“G20-LED Summit member company†Ruifeng Optoelectronics (300241) disclosed its annual report on the evening of 20th. The company's operating income in 2013 was 682 million yuan, up 36.37% year-on-year; the net profit attributable to common shareholders of listed companies was 56.638 ......
Feile Audio announced that in 2013, the company achieved a total operating income of 2.14 billion yuan, an increase of 6.37%; net profit of 57.44 million yuan, a decrease of 45.32% over the same period last year. Feile Audio said that the decline in net profit was mainly due to the decrease in inve ......
Imagine that when you are ready to drive on the road, the built-in camera recognizes the identity of the driver and the passenger, the seat is automatically adjusted to fit the passenger's most comfortable position, and the navigation and entertainment systems are also converted into your pre ......
Combating counterfeit products and maintaining the normal market order, Futian Public Security once again smashed an extremely large number of counterfeit and brand-name electronic components dens and seized more than 500 cases of counterfeit electronic components. The value of the goods w ......
Air purifiers have become the last line of defense to protect the health of the family in the ravages of the fog. The annual growth rate of the air purifier market in China has exceeded 100% in 2013. Under the premise of air pollution threatening to survive, more and more people are willin ......
The Video conference system established by public security systems at all levels across the country has played a very important role in the rapid response emergency communication guarantee and the smooth flow of police orders. In view of the fact that this equipment cannot cau ......
AQSIQ has recently reported that the European Commission will update the list of exemptions for the RoHS Directive and has established this year from September 2 to October 28 as a comment period. In view of the significant impact of the RoHS Directive on the export of China's mechanical and el ......
After the power transformer is subjected to a short-circuit shock, a large amount of gas may accumulate in the gas relay. Therefore, after the transformer accident, the gases in the gas relay and the oil power transformer inside the transformer may suffer from a short circuit, and a large ......