2,541 research outputs found
Overwintering and regrowth of Sonchus arvensis roots in Finland as affected by fragmentation and burial in three different soil types
In this study the effect of root fragmentation, burial depth and soil type on overwintering and regrowth of Sonchus arvensis L. (perennial sow-thistle) was studied
Response of Sonchus arvensis to mechanical and cultural weed control
In order to study the biology and physical control of Sonchus arvensis, a 3-year field experiment was established in 2001 at Vihti, southern Finland
Sonchus arvensis - a challenge for organic farming
Perennial sow-thistle (Sonchus arvensis L.) represents an increasing problem in Finland. Options for mechanical and cultural control of S. arvensis were studied in a 3 year field experiment on clay soil under organic production
One Tomato, Two Tomato . . . Selection of Trade Remedy Laws in the Florida-Mexico Tomato Conflict
Against the Current: Countervailing Duties, Upstream Subsidies and the Trade Remedies Reform Act of 1984
Fossil midge larvae (Diptera : Chironomidae) as quantitative indicators of late-winter hypolimnetic oxygen in southern Finland : a calibration model, case studies and potentialities
Enhanced dielectrophoresis of nanocolloids by dimer formation
We investigate the dielectrophoretic motion of charge-neutral, polarizable
nanocolloids through molecular dynamics simulations. Comparison to analytical
results derived for continuum systems shows that the discrete charge
distributions on the nanocolloids have a significant impact on their coupling
to the external field. Aggregation of nanocolloids leads to enhanced
dielectrophoretic transport, provided that increase in the dipole moment upon
aggregation can overcome the related increase in friction. The dimer
orientation and the exact structure of the nanocolloid charge distribution are
shown to be important in the enhanced transport
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