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The inhalable particulate matter (PM10) samples in environmental air was collected in 2008 during heating period and non-heating period at four sampling sites in the urban of Lucheng ciy. Applying 'nested chemical mass balance' and related environmental air particulate data in Lucheng city, the author successfully analyzed the contributions and ratios of individual sources to urban raised dust, the...
This paper, MATALAB was used to simulate series-connecting of the ground-source heat pump and the solar collector. Firstly, the simulation models of heat pump unit, ground heat-exchanger and solar collector were established. Secondly, the dynamic simulation model of combined heating system under series-connecting mode was obtained through the established sub-models and mutual coupling relations. Finally,...
This study was carried out on a sequencing batch biofilm reactor which was damaged after successful start-up of reactors with the process of autotrophic nitrogen removal in one reactor. The reasons why the system was destroyed and the change of denitrification performances were systematically analyzed. The controlling strategy speeding the recovering process of the system was also discussed based...
It is the most important to effectively conduct enterprise credit evaluation in the issuing process of relationship lending. As Chinese market economy is not developed, the current enterprise credit evaluation model in developed countries can only serve as a reference instead of being completely imitated. The enterprise loan signaling game model proposed by domestic scholars gives consideration to...
Combining with the existing research achievements of knowledge value chain and core competence, this paper firstly makes a comparison between two representative views of fostering core competence for enterprises through knowledge value chain, and then integrates the two views to explore the core competence fostering model for the automobile enterprises based on knowledge value chain from the perspective...
In the mobile communications market, the homogeneity phenomenon of product's service appears. The paper combines the Technology Acceptance Model (TAM) and Switching Cost Theory to construct the Convert Selection Model about the mobile communication services for users, which mainly analyzed from five dimensions: perceived switching costs, differences in perceived usefulness, differences in perceived...
Taking talents policy of Shanghai government for example and basing on analysis of research of policy affectees, we setup index structure of three dimensions. These three dimensions are talent increase, talent centralization and talent efficiency. We measured talents policy of Shanghai from year 2001 to 2006 with Fuzzy Optimization Methodology Model. The effect of talent policy, trend characteristic...
Suppliers plays a vital role in terms of its ability to provide reliable quality services, which directly determines the credibility of corporate success. In order to solve the problems related to selection of suppliers, we, in this paper, introduce the concept of module design while combining with mixed update mechanism, and then propose a choice model for best trustworthy supplier called BTSM. First...
Lacking information instruction, small and medium-sized enterprises in China, which organize as industry clusters, are suffering from high costs and production disorder. Meanwhile, equipped with informationized systems, third party logistics firms are urgently seeking new businesses to expand. Under such circumstances, we propose a 3PL-based synergy strategy model in order to satisfy the needs of...
Efficiency is one of the important issues for middle school and its results can be served as a direction to invest. We propose a data envelopment analysis (DEA)-based approach to ranking education efficiency of middle schools. The paper give an evaluation results about seven middle schools through six indicators based on DEA. The results indicate that some difference of development level exists and...
To establish an analytic model for carbon emission of building lifecycle, based on life cycle theory and the factors affecting energy consumption in building material transportation(BMT), a calculation method for carbon emission benchmark of BMT was proposed. Furthermore, with the coefficient of carbon emission by transportation means and the coefficient of transportation distance, a calculation model...
In this paper, we proposed a new car following model based on the Full Velocity Difference (FVD) model, with the acceleration of the front car considered. Compared with the FVD model, the improved model can simulate the motions of cars starting from a traffic signal more nature. Numerical simulation results show that the stability of the improved model is better than the FVD model, with appropriate...
The operational efficiency of electric power industry must be evaluated under the reform oriented to market. Considering the characteristics of electricity market, the limitations of traditional efficiency evaluation approaches were pointed out. A new concept of coordinated territory that constituted by some key indices which reflect the conditions of the market was put forward. The way of how to...
The ecological-economic system of resource-dependent cities is compound system composed by the ecological system and economic system through certain technical means, environmental media and the process of human labor. It includes energy, material and information transmission. In order to maximize the value of the entire system and achieve the sustainable development of ecological-economic systems,...
Considering the impact of the objective environment on the economic system, this article introduces gray elements to a dynamic input-output model which is based on variable structure control, and proposes the methods of determining the important parameters of the model. This model can reveal the relationship between propensity to consume, propensity to invest, the structure of consumption and investment,...
With the electricity reform deepening, China has established three-level power markets that are national, regional, and provincial electricity markets. Targeted a certain provincial power company, this paper analyzes the goals for establishing regional electricity market, its bidding and transaction models during the initial stage, and its effects to the operation of provincial power companies. This...
During the construction process, the project progress would be affected by the various indeterminate factors inevitably, which may cause increased risk of engineering postpone or difficulty in cost control. Maximum entropy principle was introduced into project risk management by studying information entropy and random network theory, which was applied in project schedule and cost control. And it was...
In this paper, hierarchical holographic modeling (HHM) is used to identify the risks in transport PPPs under the perspectives of contractual nature of PPPs, institution and cultural environment, and inadequate supervision. Then, we propose that the traditional financial audit approach can not effectively control risk on PPPs, and furthermore, we give an analytic framework of audit supervision for...
Through researching the domestic and overseas literature, the paper puts forward the components of chain store logistics capability and service quality. It also develops a model to study the influence relationship between chain store logistics capability and logistics service quality. The model is developed based on the current situation and problems in Chinese chain store logistics, which not only...
Quick and accurate response to the relief demand is vital to an emergency logistics network under disaster spreading. In this paper, we first characterize the disaster spreading process to forecast the time-varying relief demand, by using an epidemic model to analyze the relationships among three groups of affected individuals. Then, a new three-tiered emergency logistics network equilibrium model...
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