As a result of the above factors, this week, the leading stock price of US stocks security continued to soar. In the 4th trading, Digital Ally, the main mobile monitoring device, once again went up against the market and rose by 17.19%. The increase this week was as high as 60.55%. In contrast, Image Sensing, a US-listed company whose main business is surveillance cameras, also bucked the trend and rose 2.34% on the 4th. This week's gain was 21.91%. Combined Flow Closed Cooling Tower
Closed Cooling Tower is operated by circulating water or fluid, which is divided into two closed loops.
1. Circulation in the tower: the circulating water or fluid passes through the hot zone environment. After the water temperature rises, it enters the surface cooler in the tower, and the heat is sent to the environment outside the tower through the surface cooler and ventilation fan. The cooled circulating water or fluid is sent to the heat source by the water pump.
2. Circulation outside the tower: the spray water is sent to the spray system by the water tank through the water pipe. After spraying, the spray water first exchanges heat with the filler, so that the spray water can be cooled rapidly. At this time, the water contacts the surface of the surface cooler for heat exchange. Part of the hot steam is discharged through the ventilation fan, and the cooled spray water drops to the water tank for secondary circulation to form an external circulation for cooling.
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Security topic soared 60% this week
U.S. Attorney General Eric Holder stated on the 4th that in order to achieve real cooperation between the police and the citizens they serve, accountability and legitimacy are what people need to trust the police. Earlier, in response to the riots that occurred in the past week, U.S. President Barack Obama requested Congress to allocate 263 million U.S. dollars for improving police training and installing police cameras for the police.
Release date:2014/12/5 10:46:28