Excessively high concentration of inorganic Storage Cabinets salts in the groundwater is the main threat for residents to drink directly in the remote areas of northwestern China.In this paper, nano-porous membrane process was proposed to removal of diverse ions in such raw water.Through the response surface methodology (RSM), the effects of multip

Meteorus Haliday, Tops 1835 is a cosmopolitan genus within Braconidae (Hymenoptera).They are koinobiont endoparasitoids of Coleoptera or Lepidoptera larvae.Only one mitogenome of this genus was available.Here, we sequenced and annotated three mitogenomes of Meteorus species, and found that the tRNA gene rearrangements in these mitogenomes were rich

Navigation of images from lightning mapping instruments in geostationary orbits is very important for data applications.However, few scientific peer-reviewed papers have been reported, except a few works in the prelaunch tests.On December 11, 2016, China launched the three-axis stabilized geostationary meteorological satellite Fengyun-4A (FY-4A), w

This paper provides the design and implementation of an L1-optimal control of a quadrotor unmanned aerial vehicle (UAV).The quadrotor UAV is an underactuated rigid body with four propellers that generate forces along the rotor axes.These four forces are used to achieve asymptotic tracking of four outputs, namely the position of the center of mass o