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.
This paper presents an economic optimization case study for a medium-scale hybrid PV-battery system. PV energy yield and battery operation models based on hourly satellite insolation and daily temperature data form the basis of an underlying objective function aiming to maximize the net present value of potential energy cost savings. Forecasted system prices and energy tariffs over a nine-year period...
Directional brightness temperature (DBT) plays an important role in surface energy balance and urban climate. How to determinate the components' proportion efficiently is one of the key factors to accurate simulation of DBT. Usually, determining the proportion of each component in the sensor's field of view (FOV) uses the radiosity method. This approach is more complicated and highly accurate, however,...
This paper establishes a bio-economic singular Markovian jump model by considering the price of the commodity as a Markov chain. The controller is designed for this system such that its biomass achieves the specified range with the least cost in a finite-time. Firstly, this system is described by Takagi–Sugeno fuzzy model. Secondly, a new design method of fuzzy state-feedback controllers is presented...
This paper is to study the evolution of herding behaviors in public opinion propagation and present an analysis of the general rules of herding behaviors using an evolution model of herding behavior in public opinion propagation. Through the behavior spreads among decision making individuals, this paper described the process of herding behavior in public opinion propagation from the perspective of...
We propose a more accurate model for CMOS Hall cross with resistors and JFETs. This model not only completely takes into account the physical effects, such as geometrical effects, temperature effects, parasitical effects, and so on, but also assures the symmetry of the model. And it consists of eight nonlinear resistors, four JFETs, four current-controlled voltage sources, and four reversed-biased...
Through the application of genetic algorithms (genetic algorithm, simplified as GA) and BP(Back Propation) neural network, I built a prediction model of roses diseases, in which I choose six indicators as the input of network, they are the minimum temperature, maximum temperature, average temperature, minimum humidity, maximum humidity, average humidity in the greenhouse, then I choose three diseases...
Energy rebound effect theory provides supports for energy policies, which has become a hot research direction at home and abroad. In this paper, we conduct empirical research of energy rebound effect using 1978-2007 macroeconomic data at China's national and three industries level. The results show that: the average energy rebound effect of China during 1979-2006 is 58.24%, a little higher than most...
According to China's eight major economic regions of inland areas, This paper conducts a decomposition research of China's regional energy intensity between 1997 and 2007, from the perspective of regional differences with AVD1 decomposition method, points out that China's energy intensity maintains a downward trend, decline of 28.42% between 1997 and 2007, of which the regional efficiency factor is...
Based on the theoretical principles of Kuznets hypothesis, this paper firstly proposes the Kuznets hypothesis of energy consumption. Empirical analysis in China's 29 provincial regions shows that: The current situations of China's provincial regions have not met the inverted U-shaped curve's inflection of the energy Kuznets hypothesis yet. According to the relationship between Energy consumption and...
Reconstruction of a biological system from its experimental time series data is a challenging task in systems biology. The S-system which consists of a group of nonlinear ordinary differential equations is an effective model to characterize molecular biological systems and analyze the system dynamics. However, inference of S-systems without the knowledge of system structure is not a trivial task due...
The purpose of this study was to identify switching costs and examine the moderating effect of switching costs on buyer loyalty model in the B2B e-marketplace. Then a questionnaire was constructed and data were collected from 649 buyers of a Chinese B2B e-marketplace in 114 countries all over the world. Multi-group analysis was applied to examine the moderating effect of switching costs. Finally,...
The problem of efficiency has become the research focus for economist today. The enterprise's input and output could reflect the production efficiency in a certain period. So the input-output analysis is often used to evaluate the problem of efficiency. As the real estate industry has a longer chain and wide relevance of industries, it has a direct impact on development speed and quality of the national...
Traditional international sic-tech cooperation theories mainly focus on the ability and advantage owned by cooperative parties, and according to which to guide the direction of international science and technology cooperation. Based on the integration of traditional theories of international science and technology cooperation and concrete practice, this paper proposes the selection advantage model...
This study explored buyer loyalty formation mechanism and proposed a buyer loyalty conceptual model in the setting of B2B e-marketplaces. Then a questionnaire was constructed and data was collected from 649 buyers of a Chinese B2B e-marketplace in 114 countries all over the world. Structural equation modeling technique was applied to validate hypothetical model. Finally, the results indicated that...
After 30 years of rapid growth, Chinese family businesses (CFBs) have become a critical force in boosting the national economic performance and structural adjustment. The property rights system innovation emerged as the core and bottleneck of the CFBs governance when they first implemented asset accumulation and encountered governance dilemma. We analyzed the contingent factors in determining the...
Markowitz mean-variance model is one of the best known models that has been heavily studied in modern world of finance. However, the model is considered to be too basic in practice, as it ignores many of the constraints that real-world investors have to face with. In this paper we focused on a complex constrained portfolio selection model with additional constraining factors including the transaction...
This paper studies the car-following behaviors of individual drivers in real traffic scenes using the trajectory datasets provided by Next Generation SIMulation (NGSIM) program. We calibrate Intelligent Driver Model (IDM) and MIcroscopic Traffic SIMulator (MITSIM) car-following models by using Genetic Algorithm (GA), with a special emphasize on MITSIM model, because there are already some nice works...
This paper deals with the extracellular polymeric substance (EPS) of Rhizobium radiobacter F2 used as a novel biosorbent to remove Cu (II) and Mn (II) ions from aqueous solutions. The Cu (II) and Mn (II) ions biosorption characteristics of the EPS were examined as a function of initial pH, contact time and EPS concentration. The proper pH of the aqueous solution was found to be 6.0 for both the biosorption...
Citizen political participation in future will inevitably show a lot of revolutionary features of digit and network. The rise of e-participation is closely related to the rapid development of social economy and network technology. The political background of e-participation is mainly composed of the crisis of representative democracy and the trend of direct democracy. Moreover, the new ideas of service-oriented...
Technological innovation is an effective way to enhance the competitiveness of SMEs. But with the relatively weak technical capacity, cooperation innovation has more advantage for SMEs than self-innovation, such as reducing innovation time, saving innovation cost, saving learning costs. SMEs can take these model as follows: technology alliance, innovation network and co-bulid entity.
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.