Tianjin Foreign Studies University

Machang, China

Tianjin Foreign Studies University is one of the renowned foreign studies universities in China. The institution is one of top 8 oldest China's foremost foreign language teaching universities. As a renowned teaching university, Tianjin Foreign Studies University specializes in foreign languages and cultures studies. Language concentrations include English, Japanese, German, French, Russian, Korean, Spanish, Portuguese, Swahili and Arabic. In particular, the university's English and Japanese programs are ranked among the top programs of its kind in the nation. The institution also offers classes in Chinese language and culture for foreign exchange students from other countries.The university is located at 117 Machang Road , on the northern extreme of Hexi District , bordering Heping District , which is one of the most famous historic tourist sites in China.Xiu Gang, who is an expert on Japanese, is the current president of the university. Wikipedia.

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Liu Y.,Tianjin Foreign Studies University
Journal of Computational and Theoretical Nanoscience | Year: 2016

WeChat software is an important social tool in modern society. This paper discusses the network impact of WeChat from ten aspects including WeChat popularity, attention, video observability, network reputation, function usability, dissemination speed of information, transmission ratio of positive energy and impact of WeChat on network economy, politics and culture, and questionnaires on these ten influence factors are distributed to college students for investigation. Principal component analysis is used to deal with the survey results, the principal components of the ten factors are extracted, and the results show that WeChat popularity, attention, video observability, network reputation and function usability are the main components, in which WeChat popularity, attention and video observability are the factors having the greatest impact on the calculation. And this paper presents the function relationship between the main principal components of WeChat network impact index and these ten influence factors, to evaluate the network impact index of WeChat. © Copyright 2016 American Scientific Publishers All rights reserved.

Dong Y.,Tianjin Polytechnic University | Liu J.,Tianjin Foreign Studies University | Mei S.,Tsinghua University
Kybernetika | Year: 2013

The problem of observer design for a class of nonlinear discrete-time systems with timedelay is considered. A new approach of nonlinear observer design is proposed for the class of systems. Based on differential mean value theory, the error dynamic is transformed into linear parameter variable system. By using Lyapunov stability theory and Schur complement lemma, the sufficient conditions expressed in terms of matrix inequalities are obtained to guarantee the observer error converges asymptotically to zero. Furthermore, the problem of observer design with affine gain is investigated. The computing method for observer gain matrix is given and it is also demonstrated that the observer error converges asymptotically to zero. Finally, an illustrative example is given to validate the effectiveness of the proposed method.

Wang G.,Tianjin University | Wang G.,Tianjin Foreign Studies University | Ma J.,Tianjin University | Ma J.,Tianjin University of Finance and Economy
WSEAS Transactions on Systems | Year: 2012

In supply chain, the output decision making of the manufacturers and the ordering decision making of the distributors are closely connected. This paper studies the cooperation and gaming between manufacturers and distributors of rational difference with a model based on system dynamics and an analysis of the Nash equilibrium point. Numerical simulations show that under the circumstances of information asymmetry, the manufacturers' tendency toward cooperative gaming gives rise to chaos in output decision making, while the boundly rational decision making of the distributors is relatively stable. It is also revealed that the speed of the adjustment coefficient of output decision making exerts great impact on the stability of the system. This paper argues that the application of coefficient control creates a time-lag in the chaos of the manufacturers' output decision making and therefore allows for output adjustment to eliminate the negative effects of chaos.

Wu G.,Tianjin University | Jinyan C.,Tianjin Foreign Studies University
Advances in Intelligent Systems and Computing | Year: 2013

For non-linear problem, the forecasting technique of pre-classification and later regression was proposed, based on the classification approach of Support Vector Machine(SVM). Compared with other forecasting techniques and their forecasting results, this algorithm outperforms others in influence prediction of a liberalism case in international law. © 2013 Springer-Verlag.

Liu J.,Tianjin University | Liu C.,Tianjin Foreign Studies University | Zhao Z.,Tianjin University
Advances in Information Sciences and Service Sciences | Year: 2012

Different head movements can help us not only understand accurately whether the speaker in question is in favor of or against the current topic but also recognize human expressions better, i.e. distinguishing similar expressions such as smile and scorn. Since the movements of the feature point -- nostrils on the face and the movements of the head are almost the same, tracing the feature point with Lucas-Kanade(LK) algorithm we can find out the pattern of the head movements. We can train GentleBoost classifiers use the difference of coordinates of nostril in an image or a frame to identify the movement of the head, include nodding, shaking, bowing and turning aside. A number of tests have been conducted and the results have proved the accuracy, reliability and efficiency of the method of discussed in the paper.

Liu C.,Tianjin Foreign Studies University | Liu J.,Tianjin University | Zhao Z.,Tianjin University
Advances in Information Sciences and Service Sciences | Year: 2012

To identify people's facial expressions, locating facial feature points in images of faces is an important stage such as inside corners. In this paper we present a method for fully automatic and quick detection of facial feature points in image sequences or videos using Gabor feature based boosted classifiers based on LK algorithm. There are many ways detecting face in complex background, we assume that the face has been identified. The detected face region is divided into several regions of interest, each of which contains one feature point or more. We selected several "best feature points" used LK algorithm in regions surrounding eyes. The proposed facial feature point detection method uses individual feature patch templates to detect points in these "best feature points". These feature models are GentleBoost templates built from both gray level intensities and Gabor wavelet features. After locating the coordinates of inside corners, we can outline the contours of upper eyelids basing on Canny algorithm. We tested our method with several videos, and the method has achieved a recognition rate of 95%.

Cen H.,Tianjin Foreign Studies University | Wang K.,Tianjin Foreign Studies University
Jixie Qiangdu/Journal of Mechanical Strength | Year: 2015

The uncooled infrared focal plane arrays (UIRFPA) used in this micro-Raman experiment are composed of SiO2 thin film and Si substrate. They have the characteristic of MEMS microstructure. The process of the thermal oxidation may lead to the residual stress on account of thermal ecpansion coefficient mismatch and lattice mismatch. Residual stress in thin film has an important effect on the properties of the micro-elements. Therefore, it is necessary to measure the film residual stress. The residual stress in two SiO2 thin film/Si substrate has been investigated by using micro-Raman spectroscopy (MRS). The results show that the residual stress along the cross -section of the Si substrate is a quadric decrease along with an increase in the depth. By means of the force equilibrium and infinitesimal calculus, the residual stress in thin flim can reach 3.3 GPa and 2.2 GPa respectively for two samples. Then it can be concluded that residual stress in thin flim is compressive considered the analysis of flim micro-element. In the releasing process of the residual stress, it may make film fold, bend, bulge, and even cause disorder for the film sample when the residual stress reaches GPa level. ©, 2015, Journal of Mechanical Strength. All right reserved.

Wang B.,Tianjin Foreign Studies University | Jin Z.,Tianjin Foreign Studies University
2012 2nd International Conference on Consumer Electronics, Communications and Networks, CECNet 2012 - Proceedings | Year: 2012

IEEE 802.16 standard is one of the most promising standards for wireless broadband access in metropolitan scale, which is characterized by its high speed, wide coverage, flexible design, relay networking and mobility. The analysis on coordinated distributed scheduling (CDS) in Mesh mode shows that Randomized control bandwidth allocation algorithm of CDS can't guarantee QoS requirement. In order to improve network throughput and reduce end to end delay, a new buffer utility based control channel bandwidth allocation algorithm(BU-CDS) is proposed in this paper. In BU-CDS, butter utilities of competing nodes can be got with Cross-Lay method for computing priority of the nodes. To ease network congestion and improve resource utilization, the node with higher Buffer utility will be scheduled earlier. Simulation results show that this method effectively improves the throughput and reduces end to end delay. © 2012 IEEE.

Wang G.,Tianjin Foreign Studies University
International Conference on Logistics, Engineering, Management and Computer Science, LEMCS 2014 | Year: 2014

This paper offers a simulation of the development track of Tianjin Port from the perspective of the similarities between port development and population model. The simulation shows that, as the midpoint of the growth trajectory is passed, it is forecast that the development of Tianjin Port will gradually slow down. The competitiveness of Tianjin Port is understood in the comparison with other listed port group companies in China. The study shows that the overall competitiveness of Tianjin Port is strong, but it still has space for further development in management efficiency and hinterland transportation network construction. © 2014. The authors - Published by Atlantis Press.

Li L.,Tianjin Foreign Studies University
International Journal of Energy Economics and Policy | Year: 2014

With the development of the reform and opening-up, China's volume of export trade has grown rapidly; meanwhile the new energy consumption has risen vigorously. Export trade plays extremely important role in China's national economy, and consumption of clean energy provides significant support to China's export. Cointegration analysis of new energy consumption is adopted based on the data from 1979 to 2011, with the result showing that there exists bi-directional Grand causal relationship between China's export trade and new energy consumption. According to the impulse response and variance decomposition, the contribution of exports to consumption of new energy is more than that of new energy consumption to export trade.

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