Subsurface drip irrigation (SDI) applies water directly to the crop root zone using buried polyethy­ lene tubing, also known as a dripline, dripperline, or drip tape (Figure 1). Driplines come in varying diam­ eters and thicknesses in order to maintain acceptable irrigation uniformity for different field lengths. Smaller diameter driplines are used when short lateral lengths are required. As la...

Different types of sediment trap have been introduced so far to be used in erosion measuring stations, each with its own advantages and disadvantages in trapping aeolian particles. These traps have different collection and retention efficiency due to aerodynamic conditions. Some characteristics such as isokinetic feature of the trap, collection efficiency, time needed to download sediment, capa...

Objectives: One of the prominent vital needs for implementing a Community-Based Rehabilitation(CBR) program is correct perception and we know that CBR is linked to several challenges. The current study was performed to identify the challenges of implementing a CBR program in Iran based on the perceptions of the stakeholders. Methods: This study was qualitative conventional content analysis. In...

Jungles are acyclic hypergraphs which represent sets of terms such that common subterms can be shared. Term rewrite rules are translated into jungle evaluation rules which implement parallel term rewriting steps. By using additional hypergraph rules which “fold” equal subterms, even non-left-linear term rewriting systems can be implemented. As a side effect, these folding rules can speed up the...