Measures to prevent gas accidents in mines

All the places where gas is poured out are the focus of gas control. In order to effectively prevent the occurrence of gas accidents, it is necessary to ensure the independence and reliability of the large and small ventilation systems of the whole mine, ensure the necessary air volume of the mine, ....

The difference between LCD and LED

The biggest difference between liquid crystals and plasmas is that they must rely on passive light sources, and plasma televisions are active light-emitting display devices. Currently, mainstream LCD backlight technologies on the market include LED (light emitting diode) and CCFL (cold cathode flu ....

Introduction to the classification of mineral sampling

Mineral sampling refers to the collection of some ore or rock samples from ore bodies or near-mineral surrounding rocks, and the use of various modern testing methods for processing, identification, testing, analysis, testing and analysis of results. Different minerals have different quality resea ....

Teamed up to win Dongfeng Cummins ignited China Truck O…

On November 12, 2016, the 2016 China Open was held in Shanghai. The Dongfeng Cummins ISZ engine powered by Dongfeng Liuqi Longlong T7 won the 6x4 annual championship of the 2016 China Truck Open and was won by the Dragon Racing Team. The championship of the domestic team. Long Long T7 truck ....

Imec will show off short-wave infrared spectroscopic im…

According to reports, Imec, the world's leading research and innovation center for nanoelectronics and digital technology, announced on January 25, 2018 that it will showcase its first shortwave infrared (SWIR) at the SPIE Photonics West in San Francisco in February. ) Band hyperspectral imagi ....

LED technology prospects geometric? I will know after r…

With the birth of blue LEDs and white LEDs, global traditional lighting has gradually been replaced by energy-saving LEDs, which are also used in many fields to improve human life. Climate change has made the issue of energy conservation and carbon reduction increasingly important, and how to effect ....

Stone coal extraction vanadium pilot project

1. The pilot project of extracting vanadium from stone coal (No. NO.01) 1) The pilot production line of the stone coal extraction vanadium project 2) The exploration right of Xiaoyuan Chongyan mine in Guihuaquan Town 3) The exploration right of Wanjiakou vanadium mine in Dayuan Township 4) project ....