Most P losses from surface-irrigated fields occur via runoff, are associated with eroded sediment, and can be minimized by eliminating irrigation-induced erosion. A convenient new practice that eliminates furrow irrigation-induced soil losses uses a high molecular weight, anionic polyacrylamide (PAM) applied to initial irrigation inflows. We hypothesized that, compared to control furrows, PAM t...

drought is common across the south of iran, especially in darab district. accordingly, studying the economic aspects of deficit irrigation technique – that is one of the basic strategies in water saving for reducing water use of cotton as one of the main agricultural products in darab district is essential. in order to investigate the deficit irrigation technique and to determine its economic t...

The dynamics of transitional and turbulent boundary layers is explored via a hybrid vortex filament/finite volume simulation scheme in which vortical structures are identified without the constraints imposed by the traditional assumption that they are synonymous with rotational regions. Vortex furrows consisting of elongated, streamwise-oriented, raised perturbations to the wall vorticity layer...

Peniocereus striatus (Cactaceae) and Euphorbia cryptospinosa (Euphorbiaceae) both produce slender pencil-like stems with stomata restricted to series of furrows separated by bark-covered ribs. In each species, as the stems dehydrate, the ribs come together to close off the furrows. The unusual structure of these stems in two unrelated succulent genera is a remarkable example of evolutionary con...

There are common techniques for personal identification such as fingerprint recognition, face and iris recognition. In this paper, we suggest a new method using lip print furrows. This will be useful in forensics services. study aims to identify people by their patterns that unique each person. Lip features extracted from the images vertical Sobel operator, diagonal ±45 lines, hough transform. ...

Frog eggs are normally fertilized after reaching metaphase II. When eggs are inseminated prior to that, several sperm enter, but entry does not activate the egg. When such inseminated, immature eggs were maintained until they became mature and then were artificially activated, the eggs began to cleave. The cleavage furrows were irregular and often multiple, but the eggs developed to blastulae o...

Plasma membrane furrow formation is crucial in cell division and cytokinesis. Furrow formation in early syncytialDrosophila embryos is exceptionally rapid, with furrows forming in as little as 3.75 min. Here, we use 4D imaging to identify furrow formation, stabilization, and regression periods, and identify a rapid, membrane-dependent pathway that is essential for plasma membrane furrow formati...