Measuring infiltration at the plot scale is difficult, especially for high hydraulic conductivity soils. At the plot scale, the infiltration rate is usually calculated by comparing surface runoff to rainfall. Direct measurement of infiltration beyond the point scale is typically limited to locations where land forming (e.g., infiltration pond) has been performed or fields with basin irrigation ...

The benefits of using permeable interlocking concrete pavement systems (PICPs) have not translated into widespread adoption in Australia, where their uptake has been slow. This paper communicates the actual performance PICPs installed field by providing evidence long-term efficiency. There are currently no Australian standards for design, specification and installation PICPs. In this study, mea...

The stability of a rock slope is strongly influenced by the pattern groundwater flow through fracture system, which may lead to an increase in water pressure partly open joints and consequent decrease wall strength. comprehension challenging but vital aspect engineering geology since fractures’ spatial distribution, connectivity, aperture guide both movement quantity within volume. In literatur...

This paper describes and studies generalizations of the well known double ring network structures. Two classes of structures are studied, the N2R(p; q) and N2R(p; q; r) structures, of which the former is a special case of the well known Generalized Petersen Graphs. Basic properties of these structures are shown, indicating that they form a suitable base for future access network infrastructures...

B(20) is a "magic number" cluster with double-ring structure. Surprisingly, we also find that B(14)(2+) is a "magic number" cluster with double-ring structure, which has the largest HOMO-LUMO gap (3.31 eV) and the highest aromaticity in double-ring clusters. This double-ring B(14)(2+) cluster is energetically lower than the quasi-planar one by even ∼1.2 eV using high level ab initio calculation...

Abstract Infiltration is one of the watershed parameters that are essential for integrated water resources management. can be measured directly by a ground test such as using double infiltrometer. But very large watersheds, methods take lot time, require skilled manpower, and cost. Geographical information systems (GIS) remote sensing applications have been developed used in various fields reso...

the objective of the present study was to compare single segment and double segment intacs rings in the treatment of post-lasik ectasia. in this interventional study, 26 eyes with post-lasik ectasia were assessed. ectasia was defined as progressive myopia regardless of astigmatism, along with topographic evidence of inferior steepening of the cornea after lasik. we excluded those with a history...

We propose cyclic 5- and 7-ring structures with alternating single double bonds adjacent imino amino groups as candidates for switches in molecular electronics, amino-imino tautomerisation the switching mechanism. Due to C2V-symmetric transition state, molecules exhibit a symmetric double-well potential identical energies two states, which is desirable property functioning switch. Calculations ...