Voorbeelden van polyethylene

• These were placed randomly in a tunnel covered with a black polyethylene mesh and equipped with a microsprinkler system controlled by an electronic humidity sensor.

• Also, opaque polyethylene film does not effectively suppress nutsedge unless a soil fumigant has been applied.

• The trap interior contains an 18 cm polyethylene funnel which is suspended beneath the drainpipe by four chains.

• However, the use of polyethylene mulch has several limitations and disadvantages.

• In crops which experienced heavy rain, application of a synthetic fruit-set hormone enhanced fruit numbers as did the simple transparent polyethylene rain shelters.

• Each stem was carefully covered with a polyethylene bag before it was cut to avoid adult bugs from escaping.

• For chemical analysis, the soil was air dried and stored in polyethylene bags at room temperature.

• Direct measurement of polyethylene glycol induced depletion attraction between lipid bilayers.

• Non-permeable polymers such as polyvinylidine and polyethylene can be macerating to normal skin.

• These nets consisted of black polyethylene hanging 10 to 20 cm above the crop.

• Growing peppers on polyethylene and hairy vetch mulches.

• Effect of solar heating of soils by transparent polyethylene mulching on their chemical properties.

• The air blast was administered via 4-mm internal diameter polyethylene tubing, which was secured with a flexible cord around the child's neck.

• Two-liter polyethylene collection bottles were used and kept in freezers in the participants' residences in order to ensure stability of cortisol.

• The balloon was 4-6 cm in length (made from the finger of a latex glove), attached to polyethylene tubing.