Jin-hui Yang

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A clonal selection based memetic algorithm is proposed for solving job shop scheduling problems in this paper. In the proposed algorithm, the clonal selection and the local search mechanism are designed to enhance exploration and exploitation. In the clonal selection mechanism, clonal selection, hypermutation and receptor edit theories are presented to(More)
In this paper, a corpus-based speech synthesis system KB2006 was developed using the speech database provided by Blizzard Challenge 2006. We proposed a novel unit selection method called multi-tier non-uniform unit selection in our corpus-base speech synthesis system. Non-uniform unit (NUU) in our system was defined as a unit sequences that contains one or(More)
The title compound, C(9)H(20)NO(+)·C(2)F(3)O(2) (-), is an important inter-mediate in the synthesis of hindered light stabilizers. The piperidinium ring adopts a chair conformation with the hydroxyl group in an equatorial position. The crystal packing is stabilized by O-H⋯O and N-H⋯O hydrogen bonds. The CF(3) group is disordered over two positions with(More)
The asymmetric unit of the title compound, C(18)H(20)N(2)O(4), contains one half-mol-ecule. The mol-ecule lies on an inversion centre and is roughly planar, the chains between the two pyridine rings being only slightly twisted, with torsion angles ranging from 170.9 (1) to 177.2 (1)°. Weak C-H⋯O hydrogen bonds result in the formation of a three-dimensional(More)
The complete molecule of the title compound, C(4)H(8)N(2)O(2), is generated by a crystallographic inversion center. The occurence of N-H⋯O hydrogen bonds results in the formation of a two-dimensional infinite network parallel to the (010) plane. In this plane, the hydrogen bonds define graph-set motif R(4) (4)(22) in a centrosymmetric array by the(More)
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