The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper we discuss about the use of computer simulations for sustainable systems. Specifically, we propose laboratory practices for Automatic Control subjects where the plants are sustainable systems. The interest is the simulation of this kind of systems to forecast their behavior in order to control and actuate over them. In this paper, the use of a didactic material for laboratory practices...
This paper discusses a perceptual system for intelligent robots. Robots should be able to perceive environments flexibly enough to realize intelligent behavior. We focus on a perceptual system based on the perceiving-acting cycle discussed in ecological psychology. The perceptual system we have proposed consists of a retinal model and a spiking-neural network realizing the perceiving-acting cycle...
Under the analysis of the present situation of urban roads at home and abroad, the paper reviews the development of tripper guiding information system, traffic-flow distribution model and route choice model. Then it has three multi-attribute decision-making model based on the influence factors of tripper route choice and uncertainty theories, in order to analyze the decision-making process of tripper...
Logistics network design is an important strategic decision. With the development of globalization, more companies outsource their logistics and the third-party logistics companies have become the mainstream. So how to design a reasonable logistics network is important to both manufacturers and 3PL. this article analyses the situation of 3PL and provides a model in logistics network design. Finally,...
Based on the analysis of present literature of overseas and domestic scholars, the new connotation and main characteristics of Enterprise Technology Innovation Alliance (ETIA) are promoted, and this paper summarizes the research results about ETFA from three important aspects, including trust mechanism, risk management mechanism and interests distribution mechanism. Finally, some future research focuses...
Based on 130t/h circulating fluidized bed boiler (CFBB)unit simulation, in virtue of computer simulation technology, using configuration method simulates the CFBB operation of personnel training, in order to avoid and reduce the operating personnel happening accident, enhance the operators in the process of accident emergency handling ability.Established the PID loop adjustment combustion system and...
Selection of partners is one of the critical problems of Virtual Enterprise. In the paper, according to the deficiency in the existed quantitative methods, a partners-selection of optimization mathematic model is proposed, taking the advantages of simulated annealing algorithm and genetic algorithm, a hybrid genetic algorithm is used to slove the problem of partners selection in Virtual Enterprise...
Power Plant Circulating Water (PPCW) waste heat recycling is an important way of increasing a power plant's primary energy ratio. According to the PPCW waste heat regenerative thermal system, the authors propose two modes of heat pump heat regenerative of the system, ASPEN PLUS, one of the most famous softwares of chemical engineering,was used to stimulatethe process. The measures to save energy of...
Aiming at the reverse bullwhip effect in reverse supply chain (RSC), a non-cooperative stackelberg model is set up with agreed collection volume. The centralized, decentralized and coordinated systems are brought out successively and the operation mechanism is analyzed afterwards. With the developed expense-sharing contract as the object of the study, the fact is proved that the RSC with collection...
In order to solve the problems of current performance evaluation models of e-government website, we propose a performance evaluation model based on public attention, which concerns about the timeliness and rationality. The method about how the model is constructed is presented. Empirical analysis on the sampling e-government website based on our proposed model is given. Analysis results show that...
Leaching transfer of herbicides was considered as the main control factor of the transfer conversion of pesticides in the soil-water environment. Using Black soil column, we studied the leaching transfer of Butachlor in Black soil. The experiment results showed that leaching amount of Butachlor and the depth of the highest value of butachlor content were in the soil positive correlation with the initial...
With the data of Local State-owned listed firms from 2002 to 2006, this paper examines the effects of government intervention and pyramidal layers on over- or under- overinvestment. The results show that government intervention has induced overinvestment in the local government control firms, and find that corporate overinvestment can be weakened by pyramidal layers. Therefore, in addition to extending...
To improve developing level of forestry is essential to forestry eco-system and forestry industry. And input-output efficiency is the most important measure of forestry developing level. The paper calculates forestry input-output efficiency of 31 districts with DEA, and arranges them in the order of results through horizontal and longitudinal analysis. The paper compares and ranks the forestry input-output...
The trust management mechanism based on seller coalition and consumer virtual community is discussed in this paper, which is verified valid by game theory. The seller tends to carry out an honest transaction because of the increased opportunity cost in the mechanism, and consumers feedback transaction information positively because of the identity of community and the pursuit of interests, which makes...
In order to optimize the capacity of farmers' income persistently increasing, in this paper we analyze 8 factors affecting farmers' income increasing using PLS model based on the statistical data of Heilongjiang reclamation from 2000 to 2008. The study shows that wage incomes, agricultural subsidy and tax reducing still account for a great proportion of farmers' net incomes, but the level of agricultural...
As environment plays an important role in tourism industry, evaluation of tourism environment has become a key part of tourism research. According to the research results at home and abroad, an evaluation index system of tourism environment was established. On the basis of the index system, fuzzy matter-element model was used in evaluating the good or bad of tourism environment. Taking prefecture-level...
This paper analyzed the relationship between enterprise knowledge management and the diffusion of technological innovation and pointed out that although the technological innovation take an increasingly important role in the market competition, only when the new technology is diffused, it can be release into the energy of the entire socio-economic growth and promote technological progress and social...
Drugs circulation channels are not only related to the drug industry development, but also the human health and safety, therefore, the implementation of government supervision on drug circulation channel is one of the key content of the social and economic regulation. This paper established a basic model of drug circulation channel of government supervision, and tried to seek and explore a more effective...
Borrowing qualifications to undertake hydraulic Projects disrupted the hydraulic engineering bidding order, and affected the water project construction management and project quality to a certain extent. This paper analyzed the motives of borrowing and lending qualifications, established a tripartite game model between the lending units, borrowing units and government authorities, and analyzed the...
The decreasing birth rate and the rising popularity of overseas studies have combined to drag the number of candidates for college entrance exam. Besides these two reasons, the disturbance of population happened 51 years ago may cause the decrease in number of college entrance exam candidates in the future. We constructed a nonlinear regression model to analyze the impact of disturbance of population...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.