Li L.,Jilin Province Economic Management Cadre College
Chemical Engineering Transactions | Year: 2015
The BP neural network is the most mature and widely used artificial neural network model. It has the simple structure, strong operability and good self learning ability. This paper first introduce the neural network in general. This paper choose the BP neural network as a method of simulated prediction of 2014 to 2023 Jilin Province rural tourism revenue and scenic area. Then this paper identify the prediction indicators of the neural network, complete the network training. The results shows the BP neural network has a good simulation ability of arbitrary complex nonlinear system and a strong fitting ability. The simulation process also indicates the BP neural network has many deficiencies, including difficulty in initial learning rate selection and low convergence speed. Copyright © 2015, AIDIC Servizi S.r.l.
Zhang A.,Dalian Maritime University |
Ren G.,Dalian Maritime University |
Lin Y.,Dalian Maritime University |
Jia B.,Dalian Maritime University |
And 3 more authors.
Scientific World Journal | Year: 2014
Though label propagation algorithm (LPA) is one of the fastest algorithms for community detection in complex networks, the problem of trivial solutions frequently occurring in the algorithm affects its performance. We propose a label propagation algorithm with prediction of percolation transition (LPAp). After analyzing the reason for multiple solutions of LPA, by transforming the process of community detection into network construction process, a trivial solution in label propagation is considered as a giant component in the percolation transition. We add a prediction process of percolation transition in label propagation to delay the occurrence of trivial solutions, which makes small communities easier to be found. We also give an incomplete update condition which considers both neighbor purity and the contribution of small degree vertices to community detection to reduce the computation time of LPAp. Numerical tests are conducted. Experimental results on synthetic networks and real-world networks show that the LPAp is more accurate, more sensitive to small community, and has the ability to identify a single community structure. Moreover, LPAp with the incomplete update process can use less computation time than LPA, nearly without modularity loss. © 2014 Aiping Zhang et al.
Chunjuan L.,Jilin University |
Chunjuan L.,Jilin Province Economic Management Cadre College |
Shouqin Z.,Jilin University |
Dongsheng L.,Jilin University
2011 International Conference on Consumer Electronics, Communications and Networks, CECNet 2011 - Proceedings | Year: 2011
Deer blood albumin was first separated with membrane technology. Microfiltration as pretreatment methods greatly improved the separation efficiency of ultrafiltration. The major factors of ultrafiltration such as pressure, temperature, PH and material-liquid total protein were investigated to evaluate the effect on membrane flux. The optimal operating condition was 0.2 MPa of operating pressure, 35 °C of operating temperature, 60 min of operating time, PH 6.3, 23.8 mg/mL of material-liquid total protein concentration. Albumin content in separated samples was above 80% under the optimal operating condition. The contaminative membrane was cleaned with different methods. The best method was distilled water for 0.5 h, 250 ppm NaClO (35∼40 °C) alkaline solution for 1 h, then 0.2% SDS alkaline solution (35∼40 °C) for 1 h, and finally distilled water washing until neutrality. An excellent membrane flux was achieved and water flux recovery was 94.7%. © 2011 IEEE.
Song X.H.,Jilin Province Economic Management Cadre College
Applied Mechanics and Materials | Year: 2014
The paper mainly discusses the application of BIM technology in computer aided architectural energy efficiency design. First the paper analyzes the development and characteristics of BIM analysis software, discusses the present situation of computer aided architectural energy efficiency design. Taking Chongqing area as an example, the paper were discussed simulation software and application of BIM technology from the scheme design stage and anaphase to illumination analysis, so as to provide reference for the future research and application. © (2014) Trans Tech Publications, Switzerland.
Chen M.-H.,Tangshan College |
Ni N.,Jilin Province Economic Management Cadre College |
Song X.-S.,Hebei Polytechnic University |
Su Y.-P.,Hebei Polytechnic University
Applied Mechanics and Materials | Year: 2012
The conclusions can be acquired by experimental study and theoretical analysis.Owing to arching action,limit load of reinforced concrete frame beams can be enhanced largely.With the increase of the load rate,the limit carrying capacity of reinforced concrete frame beam and axis force also raise,but the ductility of the components falls.Theory results are basically consistent with experiment results,error is in allow bound. © (2012) Trans Tech Publications, Switzerland.