Sentence examples for impermeable bed from inspiring English sources

A barrier can occur when an impermeable bed is brought into contact with a carrier bed.

But, more to the point, each rill — its natural levees framing its impermeable bed — will increase the speed of the surface water.

It is far better, environmentalists say, that the ash should go somewhere like Arrowhead, a dry storage site dug into a nearly impermeable bed known as the Selma chalk, some 600 feet above the water table, lined with clay and polymer and equipped with a leachate collection system to suck up any water that filters through the ash and dislodges contaminants.

The groundwater flow equation is based on the assumption that the streamlines are nearly parallel to the sloping impermeable bed.

The hydrologic setting of the problem considered in this study consists of an unconfined aquifer of lateral extent L overlaying an impermeable bed with an upward slope tan β.

To explore the capabilities and limitations of the model, case studies including percolation of a single fluid in a porous medium, gravity current of a single fluid over a porous medium, multi-fluid flow over an impermeable bed, and a porous medium were simulated and compared with experimental data.

The landslides on the sedimentary terrain were mainly shallow, low-volume movements, material slumps and short runout slides some of which activated on slopes that followed the dip of strata, along wavy shear surfaces controlled by impermeable bedding planes.

In a carefully selected population of HDM sensitive children 6 months community based treatment with allergy control bedding achieved no significant improvement in peak expiratory flow in those treated with impermeable bedding covers compared with those treated with placebo covers.

Those considered for review were the following: Provision of allergen-impermeable bedding compared with no change in care or with placebo.

Combinations of interventions including the use of dust mite-impermeable bedding covers, improved cleaning practices, high-efficiency particulate air vacuum cleaners, mechanical ventilation, and parental education are associated with both asthma trigger reduction and improved health outcomes for asthmatic children.

The environmental interventions targeted the common allergens of dust mite, cockroach, pet dander, rodents, ETS, and/or mold, and included allergen-impermeable bedding covers, air purifiers with HEPA filters, HEPA vacuum cleaners, professional pest control, and an educational component.