نتایج جستجو برای: 07ʹ n to 56
تعداد نتایج: 10844247 فیلتر نتایج به سال:
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
We investigate the equation (ut + (f(u))x)x = f (u)(ux)/2 where f(u) is a given smooth function. Typically f(u) = u/2 or u/3. This equation models unidirectional and weakly nonlinear waves for the variational wave equation utt − c(u)(c(u)ux)x = 0 which models some liquid crystals with a natural sinusoidal c. The equation itself is also the Euler-Lagrange equation of a variational problem. Two n...
((2)) [843]. + [197, 2156]. 1 [205]. 12 [2283]. 2 [1255, 56, 2077, 291, 289, 1207, 1833, 1774, 2245, 290]. 3 [762, 104, 326, 295, 56, 681, 1212, 758, 929, 291, 754, 67, 289, 1742, 757, 305, 1770, 286, 742, 310, 751, 2259, 2295, 2278, 2244, 2289, 1745, 2283, 2286, 2263, 1766, 290]. 4 [56, 283]. 5 [2258]. 6 [2258]. << [2156]. β [959, 870]. χ [1510]. D [799, 1978, 1992, 2219]. E [812]. K [250, 196...
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