搜索结果: 1-5 共查到“农学总论 Tunnel”相关记录5条 . 查询时间(0.012 秒)
Iowa State's icing wind tunnel blows cold and hard to study ice on wings, turbine blades(图)
wings turbine blades Iowa State's icing wind
2014/3/20
Iowa State engineers have refurbished an icing wind tunnel and are using it to study ice buildup on aircraft wings and wind turbine blades. Ice on the wings and blades can be dangerous and costly.
Effect of air assistance on deposition distribution on spraying by tunnel-type electrostatic sprayer
Air assisted sprayers deposit losses spraying tunnel sprayers
2010/9/14
Pesticide drift has always been a serious threat to both living things in the fields and people who are indirectly affected by it. There are many types of pesticide application machines for decreasing...
Effect of wind on size and energy of small simulated raindrops: a wind tunnel study
wind speed raindrop size kinetic energy raindrop impact velocity
2008/11/19
A series of tests to evaluate the effect of wind on drop size distribution and impact energy were carried out in a wind tunnel with rainfall simulation facility. Horizontal wind speed of 5.7, 10.0, an...
The impact of tunnel cover type on growth and yield of sweet pepper
fruit quality growth solar radiation sweet pepper temperature yielding
2008/11/10
In the years 1995-1996 investigations on modification of microclimate in tunnels covered with polyethylene (PE) and polypropylene (PP) were conducted. The tunnels were covered with PE film and non-wov...
EFFECT OF PLASTIC TUNNEL SIZE ON PRODUCTION OF CUCUMBER IN DELTA OF EGYPT
plastic tunnels cucumber seasons cultivars
2010/3/25
The experiments were carried out in the years of 2000, 2001 and 2003 at Kafr El-Sheikh. The
main objective of this research was to study the influence of growing seasons and types of unheated plastic...