In this paper, according to the needs of the military, due to the extensive existence of various identification lights in military airport hangars and runways, a large number of locusts are gathered in piles. A cleani...
In 18th century,little chimney sweepers are common in Britain.Through analysis of William Blake’s two poems“The Chimney Sweeper”,this paper compares Blake’s ideal life of chimney sweepers with their real life.From...
It's just after noon Sunday when we spot our guy:a youngish-looking man wearing a neon vest,broom and dustpan in hand.He's balancing precariously on a white railing that faces Tianhe Dong Lu,leaning into oncoming traf...
National Natural Science Foundation of China(No.51375202)
Pickup mouth is a key component for the service performance of a street sweeper. Computational fluid dynamics( CFD) technology,as an analysis tool in fluid flow simulation,is employed in this work because it can great...
The impact of microwave sweeper power fluctuation in the BOTDA system has been theoretically analyzed and experimentally tested. And a novel method comparing real-time acquisition of probe wave power with a new algori...
Perch sweeper fish with scientific name Cobitis taenia is one of the Cobitidae family. Since this kind of fish lives in clean waters and in the high areas of Talar River, it can be an index on water implution. This su...
supported by the National Natural Science Foundation of China (Grant No. 60172029)
The collision between satellites IRIDIUM 33 and COSMOS 2251 indicated that the clash of two on-orbit satellites was becoming an inevitable reality. Our calculation with the two-line orbit element by NORAD showed that ...