Folding solar panel array

Solar panel devices are generally not too sculpted, but a team from NASA has developed a very elegant solar panel device. Brian Trease, a mechanical engineer from NASA's Jet Propulsion Laboratory, and the research team of Brigham Young University and an o ...more...

The speed of the work in the railway industry has not kept p…

Intelligent bearings Bearings with built-in sensors for measuring temperature and pressure have been around for quite some time. However, they are limited to trials on a few trucks, mainly due to the cost of fixed side-by-side fault detection devices over airborne testers. Province, good efficie ...more...

Who is "killing the killing" of China's photov…

Abstract According to sources from the China Chamber of Commerce for Import and Export of Electromechanical Import and Export, EU PV manufacturers including Germany's SolarWorld are preparing black materials and are planning to file an anti-circumvention investigation application against ...more...

The difference and characteristics of cable vv and cable yjv

Cable vv and cable yjv difference and characteristics? What is RVV cable? VV cable is a common type of power cable. Its function is the same as that of YJV cable. Although the overall performance is inferior to YJV cable and gradually replaced by YJV cable, because of its relatively low price, it ...more...

Advantages of belt conveyor hydraulic coupling

Advantages of the belt conveyor hydraulic coupling In order to adapt to the material with a large difference in transport density and the slow inspection during maintenance, the belt conveyor should have at least two speeds. Constant speed squirrel cage motors are usually used with adjustable elec ...more...

Bar tables and chairs price bar tables and chairs pictures A…

The bar is an important place for our party to go. The decoration of the bar is good or not, what kind of bar decoration can enhance people's desire for consumption, which has a lot to do with the choice of tables and chairs in the bar. Different combinations of bar tables and chairs determine ...more...

What is the use of mobile phones to do video surveillance sy…

How did this video surveillance system come about? With the development of modern society, mobile phones have become an indispensable part of life. However, the rapid development of science and technology, people are increasingly concerned about the safety of life, so that as the security monitori ...more...