Plastic mulched ridge-furrow irrigation is a useful method to improve crop productivity and decrease salt accumulation in arid saline areas. However, inappropriate fertilizer practices may result ecological environmental problems. In order the resource use efficiency these areas, we investigated effects of different amounts (400 (I1), 300 (I2) 200 (I3) mm) nitrogen application rates (300 (F1) 1...

OBJECTIVES To establish a three-dimensional (3D) finite element (FE) model of a maxillary first premolar and to evaluate the stress generated on the tooth (dentine) and on the indirect composite resin restorations by occlusal forces. METHODS An embedded intact maxillary first premolar tooth was sliced serially and scanned digitally parallel to the occlusal surface. The 64 images were assemble...

in semiarid regions of iran, one of the crop production management methods is delayed irrigation after emergence. this is due to simultaneous water requirement of cereal and spring season crops. a field study was conducted in kabootarabad research station to investigate the effect of delayed irrigation on root yield, quality and growth trend using a rcb with four replications. the irrigation tr...

The heat transfer characteristics of the working fluid passing through absorber a solar parabolic trough collector (SPTC) can be enhanced by creation turbulence effect. Therefore, novel idea was implemented introducing corrugated tube (CT) instead plain in collector. enhancement improved further use conical strip inserts inside SPTC. A receiver with pitch 8 mm and corrugation height 2 used thre...

the objective of this study was to evaluate the effect of different levels of irrigation and nitrogen fertilizer on nitrate movement, yield, and water use efficiency (wp) of corn in no-till planting method. the research was conducted in two years as a randomized complete block design arranged in a split block treatment design with three replicates in the safiabad agricultural research center. i...

Langer (1) reported that external to the lipid bilayer or unit membrane at the surface of the myocardial cell is the glycocalyx which is composed of two layers, the surface coat and the external lamina. Both layers contain abundant fixed negatively charged sites which are due in part to the presence of sialic acid in the glycocalyx. Although several investi gators have studied the pharmacologic...