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Nitrogen oxides (NOx) reduction technique is one of the hot topics for Diesel engine developers. In the SCR system, the required urea dosing quantity is calculated from the diesel engine raw emissions, so the estimation of the engine raw emissions is very important,. Because of the complexity and the nonlinearity of the engine model, the estimation results are always not satisfied, especially when...
This article aims at exploring Chinese consumers' perception and support of corporate social responsibility and the impact of social responsibility perception on consumer's support behavior. The data collected through consumer questionnaire indicates that Chinese consumers have a higher degree of support to corporate social responsibility. Meanwhile, this kind of support will be influenced by corporate...
In the Life-Cycle of construction project, there had been lots of participant organization join in project for construction and quit project organization system when the job was done, so there must been project organization variation. It is difficult to find a single standard to estimate different kinds of organization operation of construction engineering project due to particularity and variation...
Pyrolysis of a single biomass particle is numerically studied using a one-dimensional model which assumes virgin material decomposes through three parallel reactions to light gases, tar and char. In contrast to most past studies in which the heat of pyrolysis is assumed to be endothermic throughout the process, this paper presents a new method of calculating the pyrolysis heat in the simulation of...
With the deepening of China's reform and opening-up policy and the development of public management, regional public management has emerged and is growing as an important new area of social science research in China. Regional public management needs support from information network technology. At present, the informatization of public management has just started so that there are several major problems...
Motivated by the topics of active portfolio management payed close attention by many researchers and the fact that there exists rarely explicit solution approach in robust portfolio literature. We propose an active portfolio model in which we minimize the worst-case probability loss of portfolio subject to multiple weights constraints. We explore the explicit solution of the proposed model. And we...
This paper presents a new method in order to predict the monthly electricity peak load of a country based on the prediction of Discrete Fourier Transform (DFT) of monthly peak electricity demand variation using the ARIMA methodology. For validation, the result of this method was used to predict monthly peak load variation of the recent two years in Iranian national grid. The primary goal of this article...
This research aims to shed light on the difference among three collection strategies for agricultural biomass, i.e. commitment strategy, pure competition strategy and vertical integration strategy. Firstly, the assumptions of biomass distribution, cost structure and market structure are applied to describe the agricultural biomass market, this lead to lead to a monotonous increasing inverse demand...
In order to further understand the self-heating of coal, a chemical reaction model was proposed based on the previous model including two parallel reaction sequences. There are three different reaction sequences in this model. In comparison with the two parallel reaction sequences, the third reaction sequence is the self-reaction of initial active groups in coal. The reaction products of seven different...
This paper presents a steady-state simulation study of oxy-fuel gas cycle power plant with CO2 amine absorption process using process software Aspen HYSYS™. The oxy-fuel gas cycle power plant studied was decomposed to four units: the air separation unit (ASU), the gas turbine cycle, the heat recovery steam generator (HRSG) and the CO2 capture process. Based on the steady-state simulations, the energy...
In existing load flow model of induction generators, the magnetizing path is moved to the stator terminal, parallel to the shunt capacitor, yielding the same stator and rotor currents. The power output is equal to the mechanical power input. The stator resistance and the machine loss are ignored. It can not provide the initial condition for the dynamic and control schemes requiring the exact stator...
Life Cycle Cost(LCC) is being more and more widely applied in the procurement and management of power equipment, however, the failure cost in LCC of the equipment is difficult to forecast because of uncertainty during its operation. According to the characteristic that the cumulative failure probability observes the Weibull distribution model, a new referential method is put forward in this paper...
This paper studied the relationship between industrial elements input and cluster-benefit, took Shandong province's and Zhejiang province's textile industry as an example, analyzed the data from 2000-2007 of the two provinces with scale sensitivity model. We found that investment and benefit in Zhejiang's textile industry are inconsistent, the element affects most is unit value of liquid assets. Further...
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...
The labyrinth seal belongs to the category of complex structure labyrinth seal, which is widely applied in engineering for its better leakage control due to its multiple throttle mechanism which guarantees a more satisfactory energy dissipation. By using Fluent, the flow and the leakage in labyrinth seal were predicted by employing two-dimensional steady flow model, the κ-ε turbulence model and numerically...
In this paper, the comparison within documents were introduced, including MP, China C&I, FSC Principle and Zhejiang Provincial C&I. Then a modeling structure for sustainable forest management criteria for a unit level was conducted. This was a case study in Kaihua state owned forest farm in south China. Considering the situation of the farm a questionnaire form was given followed the CIFOR...
In electric field generated by ultra high voltage overhead lines, electric charges are induced at surface of human body. These electric charges alter electric field of human body and adjoining space. In order to study the influence of human body, a human body model is placed under ultra high voltage overhead lines and electric field produced by the overhead lines is calculated. Charge simulation method...
Although researchers have long noted the relationship of entrepreneurial culture and regional economic growth, yet currently there are not empirical studies to measure this relationship and get consistent conclusions. Based on the comparison of entrepreneurs and nonentrepreneurs, in this paper, we use a new developed measure to reflect the entrepreneurial attitude at the region level. We conduct the...
Natural gas consumption growth rate in Iran over the past decade has been usually over than the world wide consumption. As temperature variation has an inevitable effect on raw material consumption which supplies thermal and cooling energies in different areas of the society so in this research we are going to investigate the temperature effects on different sectors of natural gas consumption such...
In this study, detailed models such as boiler furnace and convective heat exchanger, with the consideration of the requirements of boiler thermodynamic calculation, were developed based on Aspen Plus user model. A boiler system for the thermodynamic calculation of a 600 MW sub-critical boiler was established and results were compared to the reference data. The comparison indicates that the models...
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