Recent experiments have shown that it is possible to self-assemble very uniform polymeric microfibers and nanofibers by exploiting elasto-capillary thinning of macroscopic liquid bridges (Harfenist et al., Nano Lett., 4(10), 2004). We develop a model of this process that describes the simultaneous viscoelasto-capillary thinning and drying of polymeric liquid filaments. A one-dimensional formula...

the objective of the present field experiment was to examine how plant density and enhanced source, i.e. thinning treatments, may affect grain yield and its components for a non-prolific maize hybrid, sc704. the environment of the hybrid maize crop was changed at intervals over its life cycle by removing every other plant in rows equispaced at 75 cm apart with a population of 13.34 plants m...

Radial intercalation is a fundamental process responsible for the thinning of multilayered tissues during large-scale morphogenesis; however, its molecular mechanism has remained elusive. Using amphibian epiboly, the thinning and spreading of the animal hemisphere during gastrulation, here we provide evidence that radial intercalation is driven by chemotaxis of cells toward the external layer o...

We have studied the flow induced by a macroscopic spherical particle settling in a Laponite suspension that exhibits a yield-stress, thixotropy and shear-thinning. We show that the fluid thixotropy (or aging) induces an increase with time of both the apparent yield stress and shear-thinning properties but also a breaking of the flow fore-aft symmetry predicted in Hershel-Bulkley fluids (yield-s...

generally, fruit trees should produce sufficient yield annually through their economic life. fruit trees usually produce flowers over their ability of productivity. if all of the flowers are converted to fruit, the tree will be weak and poor smaller fruit will be produced and it may cause alternate bearing. thus some flowers must be removed by hand, mechanically or chemically. in this study, th...

a factorial experiment was conducted for two years in the mahidasht experimental station in kermanshah. the objective of this experiment was to determine the optimum time of nitrogen application on two sugar beet varieties from both, quality and quantity point of views. these varieties, 7233- a diploid and pp22 a polyploidy variety were grown and subjected to five levels of nitrogen application...

This paper describes the two components: thinning and vectorization, at the front end of a Geographic Information System. The raster dataset associated with a map is very large. A small D-sized drawing gives a 120 Mpixel document. The amount of page faults encountered by a typical conventional thinning algorithm is so large that the run time is dominated by disk 110 time. The Contour Generation...