نتایج جستجو برای: impermeable groyne
تعداد نتایج: 2815 فیلتر نتایج به سال:
In the field of offshore renewable energy, impermeable plates are used as underwater lenses to amplify wave amplitude, and perforated can harness energy a power takeoff device. Within framework linear potential-flow theory, water scattering by horizontal is investigated in present study, both circular elliptical considered. The hypersingular integral equation constructed model interaction betwe...
Abstract The existence of groynes can affect the morphology seashore. Groynes are structures that mainly built to prevent erosion and enable sediment transport forming accretion on shore. In long term, will cause a change in coastline. This paper aims observe how coastline due installment groyne curves were simulated by using mathematical modeling. equation which was derived from continuity sol...
Solutions for the stress and pore pressure p are derived due to sudden introduction of a plane strain shear dislocation on a leaky plane in a linear poroelastic, fluid-infiltrated solid. For a leaky plane, y 1⁄4 0, the fluid mass flux is proportional to the difference in pore pressure across the plane requiring that Dp 1⁄4 R@p=@y, where R is a constant resistance. For R 1⁄4 0 and R ! 1, the exp...
BACKGROUND Exposure to allergens plays a role in the development of bronchial hyperresponsiveness and in the chronic inflammatory response seen in asthmatic patients. House dust mites (HDMs) are an important source of allergen. Reduction of these allergens might lead to better lung function and reduction of asthma symptoms. OBJECTIVE The effect of HDM-impermeable covers on HDM allergen levels...
Four experimental trials were carried out at Albenga (Northern Italy) to evaluate the e!ectiveness of reduced dosages of methyl bromide (MB) applied under gas-impermeable "lms in controlling soilborne pathogens of vegetable crops. Forty and thirty g/m2 of MB applied under di!erent types of gas-impermeable "lms controlled Rhizoctonia solani on bean, lettuce and basil, Fusarium oxysporum f. sp. b...
This study was conducted to improve the construction of impermeable clothing protecting against liquid chemical agents in order to lower the thermal strain caused by the clothing during work. Previous studies indicated that light work in a hot environment in this kind of clothing could last 30 min only. We propose a modification of the construction; new models of protective clothing were tested...
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