Coal strengthens the integration of coal circuit and po…

The data show that in 2012, the problem of relative surplus of coal supply was more prominent. After the relevant departments issued a “production restriction order” in September, the growth rate of raw coal output in the fourth quarter continued to accelerate. In 2012, the cou ......Reading more

Analysis of the Three-level Structure of Railway Securi…

The video surveillance system in the railway system is generally divided into two parts: one part is called “integrated video surveillance system” and the other part is called “CCTV surveillance system”. "Comprehensive Video Surveillance System" as a subsystem of t ......Reading more

Influencing factors and discussion on the life reductio…

Since the stiffness of the active spring is larger than that of the original spring, under the installation conditions (spring pre-compression), the actual maximum and minimum working load of the spring seriously deviate from the standard load working range, which becomes the basis for the short se ......Reading more

2013 will promote the development of new chemical mater…

Last year, the economic operation of the petroleum and chemical industries was affected by factors such as overcapacity, high financial costs, and unsatisfactory exports, and the overall efficiency of the industry was declining. In 2013, the entire industry must improve the quality and eff ......Reading more

Advantages of radiators compared to traditional cast ir…

The use of the blade heat sink is becoming more and more extensive, and has made outstanding contributions to the development of the blade heat sink. Choosing a blade heatsink also has the unparalleled advantage of Other heatsinks. Next, I will tell you about the advantages of choosing a blade ......Reading more

Anti-theft alarm system installation attention

1, determine the installation method and height The installation height of the detector is not arbitrary, it will directly affect the sensitivity of the detector and the effect of preventing small animals. Generally, the installation height of the wall-mounted infrared detector is 2.0-2.7 met ......Reading more

Security industry development trend

Four generations have been formed in technology and products: analog-digital-network-intelligent network video surveillance integrated service platform. However, in the construction of Safe City, 3111 Engineering and Digital City Management, it is still based on simulation or modular mixing, a ......Reading more