نتایج جستجو برای: bioi
تعداد نتایج: 172 فیلتر نتایج به سال:
MOTIVATION We propose a novel algorithm to combine multiple kernels and Laplacians for clustering analysis. The new algorithm is formulated on a Rayleigh quotient objective function and is solved as a bi-level alternating minimization procedure. Using the proposed algorithm, the coefficients of kernels and Laplacians can be optimized automatically. RESULTS Three variants of the algorithm are ...
The stabilities and electronic/band structures of single-layer bismuth oxyhalides have been investigated by employing first-principles calculations. The results indicate that the single-layer bismuth oxyhalide materials, except for BiOF, have robust energetic and dynamical stabilities because of their low formation energies and the absence of imaginary frequencies within the entire Brillouin zo...
GRANT, B. R., AND P. R. GRANT. 1981. Exploitation of Opuntia cactus by birds on the Galapagos. Oecologia 49:179-187. HESLOP-HARRISON, J. 1957. The experimental modification of sex expression in flowering plants. BioI. Rev. Cambro Phil. Soc. 32:38-90. KORES, P. J. 1979. Taxonomy and pollination in the wild Hawaiian orchids. M.S. Thesis. Univ. Hawaii, Honolulu. LoWREY, T. K., AND D. J. CRAWFORD. ...
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