Abstract. Soil hydrologic processes play an important role in the hydro-pedo-geomorphological feedback cycle of landscape evolution. properties and subsurface flow paths both change over time, but due to a lack observations, water are often not properly represented soil evolution models. We investigated across chronosequence calcareous glacier forefield at Griessfirn Swiss Alps. Young soils dev...

In 14 normally developing term fetuses, the relationship between the blood flow velocity waveforms at cerebral arterial level (internal carotid artery, anterior, middle and posterior cerebral artery) and fetal behavioural states was studied using Doppler colour flow imaging. Behavioural state dependent changes in absolute flow velocities occurred in all vessels, except for the middle cerebral a...

Existing continuum models of multiphase flow in porous media are unable to explain why preferential flow (fingering) occurs during infiltration into homogeneous, dry soil. Following a phase-field methodology, we propose a continuum model that accounts for an apparent surface tension at the wetting front and does not introduce new independent parameters. The model reproduces the observed feature...

Leak 2D is a new two-dimensional dual permeability mathematical model for the simulation of preferential flow in vadose zone. In this model, water soil matrix domain described by h-based Richards’ equation. Water fracture estimated using kinematic wave approach. equation solved combination alternating direction implicit (A.D.I.) method and Douglas Jones predictor−corrector method. The explicitl...

The theory of preferential consequence relations, where copies of valuations (or states labeled by valuations) serve as the terms of the preference relation, has been investigated extensively in the classical context. The first purpose of the present paper is to extend the theory to certain three/four-valued contexts, well-known as the paraconsistent logics J3 and FOUR. We give characterization...

Nanoparticles of iron precipitates produced by a microbial consortium are suitable adsorbent for metal removal from electroplating industry wastewaters. Biogenic were utilized as adsorbents chromate and zinc in batch conditions. Furthermore, the embedded alginate beads fixed-bed columns, their performance was evaluated continuous system varying different operational parameters such flow rate, b...