Description: line method tlm: Topics by Science.gov0183;32;Lowprofile antenna arrays, in addition to their small size and low weight characteristics, offer the potential advantage of lowcost, highvolume production with easy integration with active integrated circuit components. The design of such arrays requires that the radiation and impedance characteristics of the radiating elements be known.
Type: Disposable / Reusable
Function: Coronavirus, Anti-pollution, PM2.5, cold, dust, pollen, allergy
Package: 10pcs/20pcs/50pcs per pack
Certification: CE, FDA, ISO
Min Order: 1000 Pieces
Mar 01, 2018 · Method and apparatus for sampling low yield wells. DOEpatents. Last, George V.; Lanigan, David C. 2003 04 15. An apparatus and method for collecting a sample from a low yield well or perched aquifer includes a pump and a controller responsive to water level sensors for filling a sample reservoir. The controller activates the pump to fill the reservoir when the water level in the well