نتایج جستجو برای: disposal barrier
تعداد نتایج: 108176 فیلتر نتایج به سال:
objective(s):protective effects of diuretics, particularly of hydrochlorothiazide (hct), for the development of seizure attacksepilepsy have been described in vivo. however, itsthe mechanism of action of hct is unknownneeds to be elucidated. materials and methods: extracellular field potentials were recorded from the ca1- and ca3-subfields of the hippocampus of rats. epileptiform discharges wer...
cerebral palsy (cp) is the most common motor disability in children, usually occurring during fetal development; before, during, or shortly after birth, or during infancy. cp takes place in about 2.1 per 1,000 live births .there is no exact reason but birth injury or inflammation of the central nervous system, infections and hypoxia are related risk factors of this disease. often, symptoms incl...
conclusions decreasing barriers to physical activity among the elderly causes physical activities to increase; therefore, energy expenditure is increased. decreasing social and environmental problems for the elderly is effective in increasing physical activity and energy expenditure. results the average age among the study population was 67.6 ± 6.8 years median, and the interquartile range (iqr...
The paper defines the term “concept of geological disposal” radioactive waste. international and national experience disposal concept development is analyzed. peculiarities safety contribution from natural engineered barriers repository for different types formations are described. It shown that includes selection host formation, determination desired situation, as well list barriers, taking in...
in vietnam, municipal solid waste (msw) has being become increasing complex due to variety of reasons as the increasing quantity, changing composition of msw, rising public awareness and municipal administration policies among different cities and surrounding communities. there is not currently an efficient management system in place for facilities such as storage, collection, transfer, tran...
performance of profiled vertical reflective parallel noise barriers with quadratic residue diffusers
the paper presents the results of an investigation on the acoustic performance of vertical profile parallel barriers with quadratic residue diffuser tops and faces. a 2d boundary element method (bem) is used to predict the barrier insertion loss. the results of rigid and with absorptive coverage are also calculated for comparisons. using qrd on the top surface and faces of all vertical profile ...
Background and aimsThe paper presents the results of an investigation on the acoustic performance of tilted profile parallel barriers with quadratic residue diffuser tops and faces.MethodsA2D boundary element method (BEM) is used to predict the barrier insertion loss. The results of rigid and with absorptive coverage are also calculated for comparisons. Using QRD on the top surface and faces o...
Thirty-five years of research in New England indicates that ocean disposal of dredged material has minimal environmental impacts when carefully managed. This paper summarizes research efforts and resulting conclusions by the US Army Corps of Engineers, New England District, beginning with the Scientific Report Series and continuing with the Disposal Area Monitoring System (DAMOS). Using a tiere...
Sewage sludge was disposed of in Liverpool Bay for over 100 years. Annual amounts increased from 0.5 million tonnes per annum in 1900 to approximately 2 million tonnes per annum by 1995. Macrofauna and a suite of environmental variables were collected at a station adjacent to, and a reference station distant from, the disposal site over 13 years, spanning a pre- (1990-1998) and post- (1999-2003...
Landfill siting should take into account a wide range of territorial and legal factors in order to reduce negative impacts on the environment. The suitability of selected site for disposal center affects the amount of generated energy and the cost of disposal generation. Suitable sites should be determined on the basis of technical, economical and socio-environmental issues. GIS along with appr...
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