نتایج جستجو برای: combined cycles
تعداد نتایج: 462206 فیلتر نتایج به سال:
We prove that every Eulerian orientation of Km,n contains 1 4+ √ 8 mn(1 − o(1)) arc-disjoint directed 4-cycles, improving earlier lower bounds. Combined with a probabilistic argument, this result is used to prove that every regular tournament with n vertices contains 1 8+ √ 32 n2(1−o(1)) arc-disjoint directed 4-cycles. The result is also used to provide an upper bound for the distance between t...
We describe the identification and characterization of novel homing endonucleases using genome database mining to identify putative target sites, followed by high throughput activity screening in a bacterial selection system. We characterized the substrate specificity and kinetics of these endonucleases by monitoring DNA cleavage events with deep sequencing. The endonuclease specificities revea...
Abstract To study the combined effects of freeze–thaw cycles and chemical corrosion on deterioration mechanism triaxial mechanical properties sandstone in cold regions, compression tests were carried out homologous specimens after action acidic, alkaline or neutral solution cyclic action, by taking pH value hydrochemical number as control parameters. The failure mode is shear-slip failure, devi...
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