نتایج جستجو برای: cleaner
تعداد نتایج: 4568 فیلتر نتایج به سال:
A coding theorem is proved for the secret sharing communication system (SSCS) with two Gaussian wiretap channels. This communication system is an extension of both the SSCS with two noiseless channels and the Gaussian wiretap channel (GWC). The admissible region of rates and security levels for the SSCS with two GWC’s is described by the capacities and secrecy capacities of two GWC’s.
BACKGROUND High-quality vacuum cleaners and vacuum cleaner bags are often recommended to allergic patients as a means of reducing indoor allergen exposure. A number of vacuum cleaners on the market today claim to capture 99.9% of particles 0.3 microm or larger entering the vacuum cleaner, and many vacuum cleaner bags are now being sold as microfiltration bags. OBJECTIVE The purpose of this st...
Environmental concerns have highlighted the need of cleaner technologies. A cleaner, convenient and selective technology has been developed for the preparation of 3-(4,6-dimethoxy-pyrimidin-2-yloxy)-2-methyl-phenol (DPMP) from 2-methyl-benzene-1,3-diol in water as solvent. The isolated yield of DPMP is up to 86% in good selectivity. The product structure was characterized by conventional method...
Household contamination with Salmonella enterica increases when occupational exposure exists (cattle farms with known salmonellosis in cattle, a salmonella research laboratory, or a veterinary clinic experiencing an outbreak of salmonellosis). Fifteen of 55 (27.2%) vacuum cleaner bags from households with occupational exposure to S. enterica were positive versus 1 of 24 (4.2%) without known exp...
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