Nanjing Forest Police College

Nanjing, China

Nanjing Forest Police College

Nanjing, China

Time filter

Source Type

Han F.,Nanjing Forest Police College
Chemical Engineering Transactions | Year: 2016

Based on analysis of user relationship to create a user influence model. By means of collecting the user data of Sina Weibo, this thesis will analyse Weibo users relationship and the causes of customer relationship networks. By using the fuzzy comprehensive evaluation methods to determine the relationship between different factors that may affect user influence and propose a formula as well as construct the centre user's user influence model. Proposed the recommendation algorithm of micro-blogging information. In this paper, the existing information recommendation algorithms were reviewed and summarized some micro-blogging information recommended methods. On account of this, the thesis proposes another calculation method which is based on the user relationship and micro-blogging content analysis to make the Weibo information recommendation for centre audience, and verifies the effectiveness of this algorithm through the experimental results. Copyright © 2016, AIDIC Servizi S.r.l.


Chen M.,Nanjing University of Aeronautics and Astronautics | Mei R.,Nanjing Forest Police College | Jiang B.,Nanjing University of Aeronautics and Astronautics
Mathematical Problems in Engineering | Year: 2013

We propose a robust sliding mode control (SMC) scheme for a class of uncertain multi-input and multi-output (MIMO) nonlinear systems with the unknown external disturbance, the system uncertainty, and the backlash-like hysteresis. To tackle the continuous system uncertainty, the radial basis function (RBF) neural network is employed to approximate it. And then, combine the unknown external disturbance, and the unknown neural network approximation error with the affection caused by backlash-like hysteresis as a compounded disturbance which is estimated using the developed nonlinear disturbance observer. The robust sliding mode control based on the nonlinear disturbance observer and RBF neural network is presented to track the desired system output in the presence of the unknown system uncertainty, the external disturbance, and the backlash-like hysteresis. Finally, the designed robust sliding mode control strategy is applied to the near-space vehicle (NSV) attitude dynamics, and simulation results are given to illustrate the effectiveness of the proposed sliding mode control approach. © 2013 Mou Chen et al.


Activated carbon microtubes (CMTs) have been prepared from poplar catkins by chemical activation with ZnCl2. The assynthesized porous CMTs have large inner tubes of several micrometers, large BrunauerEmmettTeller surface areas of up to 1400m2 g11, a complex porous structure with predominant micropores (280 vol%), and small amount of mesopores (-20 vol%). Two-electrode supercapacitor cells constructed with the activated CMTs yield a specific capacitance of 206 F g11 and an energy density of 7.5Wh kg11 with aqueous electrolyte, values that are much higher than those of an activated carbon (160 Fg11, 5.5Wh kg11). © 2014 The Chemical Society of Japan.


Zhang J.,Nanjing Forest Police College
Advanced Materials Research | Year: 2014

The quality of cultivated land use of Zhangjiagang was surveyed and analyzed in 2009. Overall distribution of cultivated land is mainly the second and the third class. The first and the fourth class are less. Spatial distribution of heavy metals content in soil, rice and wheat roots was analyzed by IDW interpolation. The results show that the contents of Hg, As, Se, Pb and Cu in soil have a certain differences in the spatial distribution. It mainly reflect that Hg pollute the soil in the southern region of Zhangjiagang. The contents of Hg, As, Se, Pb and Cu in rice, wheat roots also have a certain differences in the spatial distribution. It mainly reflect that Hg pollute the rice, wheat plants in the western and southern region of Zhangjiagang. The productivity of cultivated land has the overall downward trend from 1996 to 2009 in Zhangjiagang. There are 10818Kg/hm2 in 1996 and 8327 Kg/hm2 in 2009. The average decreased rate is 191.6Kg/hm2 every year. © (2014) Trans Tech Publications, Switzerland.


Chen M.,Nanjing University of Aeronautics and Astronautics | Mei R.,Nanjing Forest Police College
IEEE International Conference on Control and Automation, ICCA | Year: 2014

In this work, an actuator fault tolerant control scheme is developed for a class of uncertain single-input and single-output (SISO) nonlinear systems with the actuator fault. To develop the actuator fault tolerant control scheme, the radial basis function neural network (RBFNN) is employed to approximate the unknown system uncertainties as an universal approximator. Based on bakstepping method, the actuator fault tolerant control scheme is proposed for uncertain nonlinear systems via utilizing the output of the RBFNN. The closed-loop stability is rigorously proved under the developed adaptive fault tolerant control scheme via Lyapunov analysis and the ultimately bounded convergence of all closed-loop signals is guaranteed. Simulation results are given to show the effectiveness of the proposed actuator fault tolerant control scheme. © 2014 IEEE.


Wu Y.,Nanjing Forest Police College
RISTI - Revista Iberica de Sistemas e Tecnologias de Informacao | Year: 2015

Objective: In order to strengthen the prevention and combating of network information crime. Method: Using the data traceability technology based on the trusted electronic forensics. Process: This paper introduced the application background and the importance of the role of electronic data forensics, elaborated the theoretical basis of the trusted forensic, studied the tracing technology of electronic data, displayed the data forensics technology and its workflow, and established the corresponding mathematical model. Result & Analysis: This paper studied the electronic data tracing system based on trusted forensics technology, analyzed the corresponding data of the system, and proofed out that the system can effectively carry on the trusted forensics to electronic data. Result: The electronic data tracing system in this paper can effectively carry on the recovery and tracing to electronic data, and promotes the social harmonious development.


Liu L.,Nanjing Forest Police College
Advanced Materials Research | Year: 2014

With the increasing number of college graduates, the great increasing number of graduates ' archives, the continuous improvement of the occupation of graduates' free choice, the traditional archives management methods of university graduates has already been far from the needs of the developing conditions, Also have affected the work efficiency of archives management of university graduates. Designed "University graduates ' files online inquiry system", students ' information and employment records and the EMS mail will be connected to realize the real-time tracking of archives, and strengthen the graduates and school archives management communication, then raise the scientific, information, and networking level of the school students ' archive management. © (2014) Trans Tech Publications, Switzerland.


Yin K.,Nanjing Forest Police College
2015 5th International Conference on Information Science and Technology, ICIST 2015 | Year: 2015

This paper describes a solution for emergency evacuation of a non-symmetric metro station in the case of fire using Wireless Sensor Network (WSN). Comparative simulation research of monitoring and evacuation of a metro station fire both with and without WSN was carried out. A simulation model was constructed using WSN positioning technology. It was found that WSN positioning technology helped solve blind area rescue and evacuation in the metro fire disaster, especially for evacuation in a non-symmetrical environment. The simulation results showed that by using WSN, evacuation time was greatly shortened so that the scope of the possible disaster could be reduced; this offers some referential significance for realistic evacuation. © 2015 IEEE.


Mei R.,Nanjing Forest Police College
ICIC Express Letters | Year: 2015

In this paper, the robust synchronization control is proposed for uncertain fractional order chaotic systems based on sliding mode strategy. To well handle the unknown disturbance, the sliding mode disturbance observer is developed for the synchronization error system. For enhancing the disturbance rejection ability of synchronization,the output of sliding mode disturbance observer is employed to design the robust sliding mode synchronization controller. It is shown that the rigorous stability of the closed-loop system can be guaranteed under the proposed robust sliding mode synchronization control hrough Lyapunov analysis. Numerical simulation results are presented to illustrate the effectiveness of the proposed robust sliding mode synchronization control scheme for uncertain fractional order chaotic systems. © 2015, ICIC International.


Xu X.,Nanjing Forest Police College
International Journal of Security and its Applications | Year: 2015

Focusing on the file pollution problem exists in unstructured P2P file sharing systems, we propose a strategy named TrustIs by combining the trust mechanism and the immune strategy of complex network to resist the propagation of polluted files. With the help of peer reputation, trusted immune peers and backup peers can be screened out. Also, the files and indices can be identified based on their object reputation and index reputation so as to provide reference for immune pees to filter out the polluted files or indices. Meanwhile, an immune token ring network is set up for monitoring peers' behavior and implementing the refreshment of the immune resources. The results of the simulations show that TrustIs can effectively resist the propagation of polluted files. © 2015 SERSC.

Loading Nanjing Forest Police College collaborators
Loading Nanjing Forest Police College collaborators