Cluster’s Competitiveness of Photoelectron Industry of Optics Valley of Wuhan Based on the GEM Model

Wuhan East Lake High-tech Zone was called Optics Valley of Wuhan ratified by the Ministry of Science and Technology of China in 2001, which became a national photoelectron industry base now. As time goes by, Optics Valley of Wuhan photoelectron industry cluster become more and more powerful, and it has become a major form of regional economy in gaining competitive advantages. This paper establishes a GEM model of optics Valley photoelectron industry Cluster, and creates its competitiveness evaluation system. At the same time, not only do we measure the cluster’s competitiveness by distributing questionnaires, but also preliminary analyze and evaluate the measurement results

Existence of φ\varphi-attractor and estimate of their attractive velocity for infinite-dimensional dynamical systems

This paper is devoted to the quantitative study of the attractive velocity of generalized attractors for infinite-dimensional dynamical systems. We introduce the notion of~$\varphi$-attractor whose attractive speed is characterized by a general non-negative decay function~$\varphi$, and prove that~$\varphi$-decay with respect to noncompactness measure is a sufficient condition for a dissipitive system to have a~$\varphi$-attractor. Furthermore, several criteria for~$\varphi$-decay with respect to noncompactness measure are provided. Finally, as an application, we establish the existence of a generalized exponential attractor and the specific estimate of its attractive velocity for a semilinear wave equation with a critical nonlinearity.Comment: arXiv admin note: substantial text overlap with arXiv:2108.0741

APPLICATION OF POLYETHYLENE-GLYCOL LINKED MULTI-WALLED CARBON NANOTUBES FOR IMPROVED STEM CELL DIFFERENTIATION

Ph.DDOCTOR OF PHILOSOPH

Molecular analysis and expression of phenylalanine ammonia-lyase from poinsettia (Euphorbia pulcherrima willd.)

Phenylalanine ammonia-lyase (PAL, EC 4.3.1.5) is a key regulatory enzyme that link primary and secondary metabolism in plants by catalyzing the conversion of l-phenylalanine to cinnamic acid. In this study, the cDNA and genomic DNA of PAL (named EpPAL) in poinsettia (Euphorbia pulcherrima willd.) were isolated and submitted in GenBank with accession number FJ594466 and FJ943503, respectively. The full-length of cDNA was 2429 bp with a poly (A) tail and contains a 2166-bp open reading frame (ORF) encoding 721 amino acids. The sequence of genomic DNA was 3315 bp, and the transcript was divided into two exons by an 886-bp long intron which located at 416 bp downstream initiation codon. Expression analysis of EpPAL in poinsettia revealed that expression levels were higher in roots and bracts, but lower in stems and green leaves. Meanwhile, expression levels increased in the order: green leaves - turning color leaves - bracts, which were consistent with their anthocyanin content during growth and development of bracts. The curve of diurnal variation of EpPAL expression level in bracts exhibited two highest peaks at 9:00 and 18:00, respectively, and reached the lowest level at 12:00 in a clear day. With the maturation and senescence of bracts, expression levels reduced gradually in both green leaves and bracts, but decreased more rapidly in bracts than green leaves.Keywords: Cloning, expression, phenylalanine ammonia-lyase, poinsetti