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Based on the financial security index calculated in the method of principal component analysis, this paper applies the model of BP neural network to test the result and then puts forward the early warning of Chinese financial security position in the future. In addition, the article gives some following suggestions for the early warning of financial risks: we shall reform the current financial regulation...
The electric power system is one of the most complex engineered systems. It is, thus, a challenge to design a market that is efficient, transparent, and provides the proper incentives to market participants. Existing market models employ constraint relaxations, which enable various constraints to be relaxed (violated) for a high penalty price. This paper examines the practice of allowing transmission...
In restructured power systems, generation and commercialization activities became market activities, while transmission and distribution activities continue as regulated monopolies. As a result, the adequacy of transmission network should be evaluated independent of generation system. After introducing the constrained fuzzy power flow (CFPF) as a suitable tool to quantify the adequacy of transmission...
Wetland is a very important part in ecological system and it offers various animals and plants habitat. Red beach which grows in tidal zone and intertidal zone between sea and land is one of wetlands with high productivity and variety. Wetland is a natural resource in fast dynamic property and one of currently important wetland remote sensing studies to extract and analyze wetland information. This...
Beichen district of Tianjin, located in the important node of Beijing-Tianjin golden corridor and high-tech industry area of Jingjintang region, has strong industrial foundations, while it is still faced with the problems that traditional industries account for high proportion of the industrial structure, inefficient use of industrial land, lack of enterprise innovation ability and shortage of resources,...
In recent years, under the action of multiple stress factors, such as global change, ecological function decay, extensive production, natural disasters and sudden environmental events are showing a rising trend , the ecological high-risk characteristics which is an inevitable process of industrialization is initially apparent in our country. So that, based on the analysis of regional ecological carrying...
In this paper, we investigate the relationship among trading volume, volatility and jump based on Hu-Shen300 index high frequency data. We measure volatility using realized volatility proposed by Andersen and Bollerslev (1998) and decompose it into upside and downside parts by the asymptotic properties of realized upside and downside power variation defined in Bi, Zhang and Wu(2013). To measure jump...
Farming-pastoral zone is one of typical ecological transition zone in China. To monitor and evaluate the ecological security in farming-pastoral zone is of great significance for regional environmental protection and rational utilization. This paper chooses Guyuan County as the research area, which is in typical farming-pastoral zone area named Bashang in north China. Then, in the administrative divisions...
Educational resource center is a digital content management and service system with all kinds of educational information resources collected. By analyzing the current development of educational resource center, this paper proposes that ecological development is the strategic goal of educational resource center, and presents a use efficiency model of educational resource center. The use efficiency...
This paper calculates the ecological footprint, ecological capacity and ecological pressure index of Shaanxi Province from 1991 to 2011 by the method of ecological footprint. And it gets the ecological security level trend in 21 years of Shaanxi Province. Then the paper selects five different indicators to establish index system. The state index of social development in Shaanxi Province is calculated...
Bringing the concept of public satisfaction into government performance evaluation is the objective requirement of democratic politics, which involves complex psychological evaluation models and has opened a new area in China. Drawing on the classic structure of satisfaction, a theoretical model is built for the evaluation of public satisfaction of domestic local government's overall performance....
This paper presents an intelligent model for stock market signal prediction using Multi Layer Perceptron (MLP) Artificial Neural Networks (ANN). Blind source separation technique, from signal processing, is integrated with the learning phase of the constructed baseline MLP ANN to overcome the problems of prediction accuracy and lack of generalization. Kullback Leibler Divergence (KLD) is used, as...
Due to the disaster factors that influence the ecological security of Mining cities, risk measurement and fuzzy optimization theories are used, and an assessment indicator system based on potential factors and a fuzzy iteration model about ecological security of Mining Cities are presented in this paper, from the point of safety and disaster concepts. Finally, a case is applied in the appraisal of...
City eco-security early-warning evaluation indicator system of Liaohe River watershed based on Pressure-State-Response (P-S-R) was established, and on the basis of which, city eco-security early-warning model of resources-population-economy-society-environment composite system was built in this paper. This research adopts a combination assessment methods, simulates a series of eco-security early-warning...
The construction of urban ecological security is much concerned with the continuous urbanization process. This paper established an urban ecological security evaluation system by employing PSR(Pressure-Status-Response)method, on the basis of the previous studies about ecological security evaluation by other researchers. The weight of each index was defined utilizing the AHP(Analytical Hierarchy Process)...
The deterioration of ecological environment has aroused broad attention. This paper constructed an urban ecological security warning assessment index system. The index system was composed of vigor, organizational structure, resilience, maintenance of ecosystem service and human health. Then it established an assessment model of urban ecological security warning based on fuzzy matter-element theory...
On the basis of determining the space scale of the regional risk assessment recognized and analyzed the risk source with the systematic engineering principles and methods, and set up a fuzzy comprehensive evaluation system. And then set up the evaluation system of Petrochemical Area in Huang Dao by using fuzzy comprehensive evaluation and MATLAB and GUI technology, and it will supply technical support...
Tourism ecological footprint (TEF) model is an important method assessing the sustainable development of regional tourism in certain areas. In order to avoid some shortages of traditional TEF model, this paper proposes an modified model by adopting energy theory, which is named as tourism energy ecological footprint (TEEF) model. From the perspective of solar energy, the new model focuses on renewable...
In this paper, we study the margin of Chinese Stock Index Futures using GARCH-VaR model and Monte Carlo simulation respectively. The result of the empirical study shows that the model of GARCH-VaR is more precise in describing the proper margin level. Furthermore, the average margin level of the long is higher than the short, which means the long is exposed to more risks than the short Moreover, we...
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