Because of the randomness of wind speed and the nonlinearity of the dynamic equation of variable pitch control, it is difficult to establish an accurate dynamic equation of variable pitch of floating fan.In view of this situation, this paper takes the 5 MW floating wind turbine of the NREL (National Renewable Energy Laboratory) as the research obje
This revised 3-page fact sheet describes the biology and management of American black nightshade, explaining how to eeboo coupons control for it in tomato and pepper, cucurbits, and strawberry.Written by Nathan S.Boyd, Shawn Steed, Chris Marble, and Andrew MacRae, and published by the Horticultural Sciences Department, October 2016.HS1176/HS1176: B
During the early 1900s, nearly 37 million hectares of land in the Southern United States were under longleaf pine (Pinus palustris) relative to the current area of 1.6 million hectares.This study compares the economics of southern pines (longleaf, loblolly (Pinus taeda), and slash (Pinus elliottii)) to facilitate the decision making of family fores
Since UAV images are taken at a low altitude, compared to satellite or aerial images, they usually have narrow ground coverage.In order to use them over a large area of interest, it is essential to mosaic them into a large image.In addition, UAV images may have different brightness values at the same ground locations according to different weather
Optical rangefinders based on Self-Mixing Interferometry are widely described in literature, but not yet on the market as commercial instruments.The main reason is that it is relatively easy to propose new elaboration techniques and get results in controlled conditions, while it is very difficult to develop a reliable instrument.In this paper, we p