نتایج جستجو برای: water germs
تعداد نتایج: 552344 فیلتر نتایج به سال:
We prove that a hyperbolic Dulac germ with complex coefficients in its expansion is linearizable on standard quadratic domain and the linearizing coordinate again germ. The proof uses results about normal forms of transseries [19].
A boron-doped diamond (BDD) electrode was constructed as a water disinfector for the inactivation of water borne pathogens. The bactericidal effect of the disinfector was evaluated on artificially contaminated waters containing, respectively, Escherichia coli, Pseudomonas aeruginosa and Legionella pneumophila at high density. By treating the bacterial suspensions with 4 V of constant voltage be...
BACKGROUND There is evidence that household point-of-use (POU) water treatment products can reduce the enormous burden of water-borne illness. Nevertheless, adoption among the global poor is very low, and little evidence exists on why. METHODS We gave 600 households in poor communities in Dhaka, Bangladesh randomly-ordered two-month free trials of four water treatment products: dilute liquid ...
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