نتایج جستجو برای: damping off
تعداد نتایج: 206245 فیلتر نتایج به سال:
due to the high antagonistic activity of bacterium, bacillus subtilis (ehrenberg) cohn, three isolates (b.s.ham, 204 and 202) were selected and their efficacy were studied in control of sugar beetdamping–off caused by rhizoctonia solani , in in vitro and in vivo conditions. in dual culture on pda, all isolates of b.subtilis inhibited mycelial growth of r.solani. significantly, volatile metab...
This note deals with three aspects of nonproportional damping in linear damped vibrating systems in which the stiffness and damping matrices are not restricted to being symmetric and positive definite. First, we give results on approximating a general damping matrix by one that commutes with the stiffness matrix when the stiffness matrix is a general diagonalizable matrix, and the damping and s...
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