Nanjing Forest Police College

Nanjing, China

Nanjing Forest Police College

Nanjing, China
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Han F.,Nanjing Forest Police College
International Journal of Future Generation Communication and Networking | Year: 2016

Recently, social networks have become one of the most popular tools for communication and information exchanges, and people are constructing social relationships and conducting social interactions over social networks. In this paper, we focus on digital forensics on social networks. Specifically, considering the emerging of cloud computing and big data tides, we propose a cloud based forensics framework for social networks, where social networking data is collected, stored, and analyzed through a multi-layered modularity framework using cloud computing techniques, including virtualization, distributed processing and storage, and collaboration. Besides, we also provide a case study on social link prediction, which is, reasoning links between nodes to infer possible relationships between criminals. © 2016 SERSC.


Cao Z.,Nanjing University of Information Science and Technology | Zhai C.,Nanjing Forest Police College
Applied Optics | Year: 2017

A one-dimensional Airy beam light sheet has the advantage of nondiffraction and self-reconstruction after encountering particles. The angular scattering of an Airy beam by a homogeneous sphere is numerically studied in this paper using Mie theory and a plane-wave spectrum method. The effects of sphere radius, refractive index, beam width, and sphere position on the angular distribution of scattering light are simulated. Correlation coefficients are employed to investigate whether Airy beam scattering can be approximated to be plane-wave scattering for computational efficiency. The results can be applied in light scattering measurement that uses an Airy beam aiming at reducing multiple scattering. © 2017 Optical Society of America.


Yanying Y.,Nanjing Forest Police College
Agro Food Industry Hi-Tech | Year: 2017

With the rapid development of all aspects of our country, there are numerous data in each field. How to deal with the data quickly and effectively is the problem we are facing currently. Based on this, research on the large data particle clustering algorithm based on the minimum variance response was carried out in this paper. First, the concept of minimum variance response was introduced, and then large data particle clustering algorithm was explained. Ultimately, the construction of large data particle clustering algorithm based on the minimum variance response was described in detail. The results indicate that the large data particle clustering algorithm based on the minimum variance response can effectively meet the requirements of data search and mining.


Liu Y.,Nanjing Forest Police College
Revista de la Facultad de Ingenieria | Year: 2017

With the extensive application of modern science and technology and the continuous development of Internet technology, the Internet of Things (IOT) has seen rapid development, and has been playing an increasingly important role in people's lives. However, the large number of equipment connected to IOT makes it a heterogeneous fusion network with large amount of heterogeneous information, which can easily lead to poor real-timeness and waste of bandwidth resources. Therefore, how to classify and fuse the heterogeneous data of IOT has become an important issue. In this paper, we first propose the Transfer-Boost method based on XML, classify the data of IOT and address the uncertainty problem of IOT data. Then, we adopt the D-S evidence theory to fuse data on an IOT-node-weighted basis and adjust the weights according to the conflict of evidence so that the fusion results will be more realistic and better support users in making the right decisions. Finally, we perform the simulation experiment on NS2. The results show that the proposed XML-based Transfer-Boost algorithm and node-weighted D-S evidence theory have very good performance.


Cao Z.,Nanjing University of Information Science and Technology | Zhai C.,Nanjing Forest Police College
Journal of Quantitative Spectroscopy and Radiative Transfer | Year: 2017

Angular distribution of scattered light by a particle reveals information of its topology and refractive index, which has been proved to be an effective method to identify and characterize the particle. In this paper, numerical study on angular scattering of a polarized one-dimensional Airy beam light sheet by concentric spheres is presented. Plane-wave spectrum method is adopted to simplify the problem into classic Mie scattering problem, which significantly improves computational efficiency. The effects of size parameters, refractive index and position of concentric spheres and Airy beam radius on the angular distribution of scattered light are investigated. This paper provides theoretical results for light scattering measurement where Airy beam light sheet is employed for reducing effects of multiple scattering. © 2017


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.


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.


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.

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