Yang L.T.,Guiyang University
Advanced Materials Research | Year: 2014
In this paper, a hybrid quasi-micro-pyramid structure is fabricated via nanosecond pulse laser micro-processing, which demonstrates a 15% drop in average reflectance as compared to the uniform quasi-micro-pyramid structures. The influences of laser fluence, pulse number, and designed pitch are also studied experimentally and systematically. The results show that reflection increases with the pattern pitch, decreases with pulse number, and a minimum in reflection is reached at a laser fluence of 4.83 J/cm2. The method here demonstrated provides an alternative and low-cost solution for broadband anti-reflection by hybrid structures with normal aspect ratio rather than uniform structures with high aspect ratio. Higher antireflection performance can be expected by optimizing the laser processing parameters. © (2014) Trans Tech Publications, Switzerland.
Shen Y.,Guiyang University
Industrial, Mechanical and Manufacturing Science - Proceedings of the 2014 International Conference on Industrial, Mechanical and Manufacturing Science, ICIMMS 2014 | Year: 2015
As the financial reform in China is moving forward, the competition in financial industry is becoming increasingly fierce. Business operators are faced with the problems on how to choose innovation strategies for financial products to pursue profit maximization. Based on the current development of financial industry in China, this study, according to the theory of finance and industrial economies, analyzed the problems of insufficient market segmentation and single service object in financial innovation and proposed some effective advice, conducting diversified businesses based on the market environment. © 2015 Taylor & Francis Group, London.
Ou Yang B.C.,Guiyang University
Applied Mechanics and Materials | Year: 2014
With the rapid development of logistics enterprises, tradition logistics sorting has been unable to meet the needs of the development of express logistics. Combining with the RFID technology, the paper proposes a new way of logistics sorting and data routing. By increasing the RFID tag and the AWB in the express waybill will improve efficiency. Using Cluster head selection principle and clustering algorithm of LEACH (adaptive clustering hierarchy). Comparison with original system, verified the practicability of RFID technology and data routing algorithm in the sorting system and easy to use. © (2014) Trans Tech Publications, Switzerland.
Du J.,Guiyang University
Jiegou Huaxue | Year: 2015
Under solvothermal conditions, a new trinuclear Zn(II) complex, [Zn3(bpdc)3(DPNDI)]· 3NMF (1, H2bpdc = biphenyl-4,4'-dicarboxylate, N,N'-di(4-pyridyl)-1,4,5,8-naphthalenetetracarboxydiimide (DPNDI) and NMF = N-methylformamide), has been synthesized with mixed organic ligands. Complex 1 is of monoclinic, space group P21/n with a = 11.167(5), b = 14.806(5), c = 19.494(5) Å, V = 3154.6(19) Å3, Z = 2, Mr = 1455.24, Dc =1.532 g/cm3, F(000) =1484 and μ = 1.212 mm-1. The final refinement gave R = 0.0343 and wR = 0.0419 for 6209 reflections with I > 2σ(I). Single-crystal X-ray analysis reveals that complex 1 features a 3D structure based on the trinuclear Zn(II) units. Complex 1 shows three-fold interpenetrating hex topology. Furthermore, the luminescent property 1 is investigated.
Jin Y.,Guiyang University
Annals of Physics | Year: 2016
The dynamics of the quantum Fisher information of the parameters of the initial atomic state is studied, in the framework of open quantum systems, for a pair of static two-level atoms coupled to a bath of fluctuating vacuum scalar fields. Our results show that the correlations between the two atoms as well as the precision limit in quantum metrology are determined by the separation between the two atoms. Remarkably, when the separation between the two atoms approaches zero, the quantum Fisher information, thus the precision limit of the estimation of the parameters of the initial atomic state will be survived from the vacuum fluctuations after long time evolution. © 2016 Elsevier Inc.