To investigate the influence of hypoxia during the early stage of incubation on embryonic developmentand hatching events, and consequently on incidence of ascites in broiler chickens, one thousand fertile eggswere incubated in two commercial incubators. Half the eggs were incubated in a low altitude incubator untilhatched. The second half were incubated in a high altitude incubator until day 10...

A new system for atmospheric measurements in the lower troposphere has been developed and successfully tested. The presented Small Unmanned Meteorological Observer (SUMO) is based on a light-weighted commercially available model airplane, equipped with an autopilot and meteorological sensors for temperature, humidity and pressure. During the 5 week field campaign FLOHOF (Flow over and around Ho...

Up to now, there have been no complete theoretical researches and field experiment reports on the fiber fusion loss at high altitude. Therefore, we conducted an exploratory study splicing altitude, firstly analyze influence of mode diameter mismatch, axial offset, angle tilt or end face gap affected by altitude splice loss, then discuss fusion-splicing parameters loss. Besides, a mathematical m...

Air gap impulse discharge characteristics of railway tunnel-catenary at high-altitude are great significance to the electrical insulation design. The existing altitude correction methods for non-uniform air gaps not applicable tunnel-catenary. To investigate tunnel-catenary, a typical structural model was built in an artificial climate chamber. Different altitudes were simulated by adjusting at...

Carbonaceous aerosols including organic carbon and black carbon have significant implications for both climate and air quality. In the current global climate or chemical transport models, a fixed hydrophobic-to-hydrophilic conversion lifetime for carbonaceous aerosol (τ) is generally assumed, which is usually around one day. We have implemented a new detailed aging scheme for carbonaceous aeros...

The life table statistics of six native Kenyan species/strains of Trichogramma and Trichogrammatoidea were established using a factitious host Corcyra cephalonica, Stainton (Lepidoptera: Pyralidae), at eight different temperatures (10, 15, 20, 25, 28, 30, 32 and 35 degrees C) and two humidity levels (40-50 and 70-80%). The objective was to select insects with superior attributes for augmentativ...

In addition to the change of meteorological elements in time and space on earth, it is also important consider trend their altitude. Their not only during day, but average monthly, annual, perennial values are unevenly distributed. Observations studies by altitude becoming necessary many areas. This especially when studying problem global climate warming. However, lack information about free at...

In accordance with the developing economy and growing population, an increasing number of tall buildings have been constructed over last 20 years. 2017, there were 144 new worldwide that 200 m or greater in height; 50% these China. Due to vertical gradient impact meteorological parameters, energy performance differs from general buildings. Few studies exist on changes using measured data at dif...