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Much literature has addressed the accurate modelling of technical constraints of a Generation Company's (GenCo's) thermal portfolio. This paper approaches the scheduling problem from the perspective of flexible dispatch. The contribution lies in relaxing the fixed gradient and minimum up- and down-time constraints of a thermal power plant. Two test cases show both price takers and price makers exploit...
This paper considers inventory models of (Q, s) type with Q the order-quantity and s the order point. In general, an optimal choice of control parameters (Q and s) will depend on the characteristics of replenishment lead time and the demand process, as well as holding and shortage costs. Although many studies have treated lead time as constant, focusing only on demand variability, a number of authors...
Organisms possess an amazing self-organizing and self-adaptive abilities compared with the man-made system. These abilities emit a strong attraction to engineers engaged in reliable electronic system design. In the current paper, a bio-inspired approach based on a lateral activation model from biological pattern formation theory is used to design the genotype of a French flag Organism. This lateral...
This paper presents a bio-inspired self-organizing approach for multicellular embryonic architecture, this approach is based on the lateral activation model from biological embryonic development theory. The lateral activation model clearly depicts intracellular chemical reaction and intercellular chemical exchange, and can provide the positional information for each cell, which is precisely the key...
This study deals with mathematical modeling for predicting Chlamydomonas reinhardtii growth under light attenuation and sulfur deprived conditions leading to hydrogen production in photobioreactor. The strong interactions between biological and physical phenomena require complex mathematical expressions with important number of parameters that have to be identified on the available experimental data...
World Expo 2010 has been hold successfully in Shanghai, China, which became an important promotion to economic development of Shanghai. This paper quantitatively analyzes economic input and output indicators of Shanghai under the influence of the World Expo to make an objective evaluation. Using C-D production function and other models to measure related economic indicators under the influence of...
Urban agglomeration becomes increasingly important because of the globalization of world economies. Constraints of quantity and quality of resources influence mostly the radiating area of urban agglomeration. A method of relationship of resource constraint and radiating area of urban agglomeration is presented. Based on the methodology, models are constructed using the theory of endogenous economic...
Environmental concerns on the negative impact and depletion of fossil fuels have triggered a search for alternative energy sources. Biofuels are recognised as one of the most potential renewable alternatives. In order to have a sustainable production of biofuels, a processing facility (i.e., biorefinery) that converts biomass into value-added products is needed. As the first and second generations...
Biofuels have become popular in recent years, as a result of growing concerns about climate change coupled with the need to enhance energy security. However, first generation biofuels have been criticized as competing with food production for increasingly scarce agricultural resources. As a result, enhancing the sustainability of biofuel production requires systematic, life-cycle based optimization...
Rural regional development disparity has become a major development issue in China. As non-farm income is the main source of farm income and the key to solve regional disparity, our research focuses on farmers' non-farm income. While most existing research focused on micro factors that influence regional development disparity, our research explored macro factors, especially trade openness on non-farm...
The application field and computational scale were taken into account when selecting plants simulation models. The FON model was chosen due to its advantage of perfectly representing the plants interaction considering the relationship between trees and environment. The FON model was applied in stand simulation which had been modified by one of the mechanism sub-modules in purpose of giving better...
We consider the problem of controlling gene expression in a stochastic genetic regulatory network. We introduce a general class of network designs that achieve this task, and that could be implemented in a synthetic biological setting. For our system, we describe the dynamics of the means and covariances of the gene products, and show that their steady states can be prescribed and tuned. We demonstrate...
This paper divided China into three sub-regions to study the corn production. After built yield and acreage model of corn with Nerlove Model, this paper analyzed the factors which affected corn's yield and planting areas in different sub-regions. At the last section, calculated the elasticities of yield and planting area in sub-regions for the short run and the long run. The result indicates that...
In this paper, we investigate how agents' value expectation to fiat money influence circulation of fiat. We use both replicator dynamics and multi-agent simulation to describe how rational agents shift their strategies and gradually accept fiat in the transactions. We find that higher value expectation and more specialization in social production make fiat widely accepted easier. This paper present...
Many developing countries have experienced rising skill demand and wage inequality after trade liberalization, which opposite the predict of Stolper-Samuelson theorem. In this paper, we explain this puzzle from the view of technology spillovers of international trade. We firstly present a technology spillover model with imported intermediate goods from industrial countries. It concluded that, technology...
The sense of mining progress was analyzed. The model of production function considering mining technical progress and mining condition of coal bed was proposed. The growth equation and the production function were deduced when the two factors were considered. The research indicates that mining technical progress has a great effect on the output of mine enterprise when mining technology develops promptly...
From the aim of water resource input-output analysis in the development of industry, the paper designs a maneuverable method to tabulate the water resource input-output table, by redefining the water resource. Then the models of direct water use coefficient, total water use coefficient and water use multiplier are established on the basis of water resource input-output table. At last, the models are...
There is close relationship between foreign trade and economy growth. China's export trade and import trade develop rapidly and foreign direct investment is becoming more and more since China's reform and opening up which can make impact on China's real economy development. The impact mechanism of foreign trade on real economy in China has been analyzed by using yearly data from 1982 to 2009 based...
Based on the research of the effect characteristics of the dynamic variable of the coordinated development of county economic system, this paper modifies the traditional Solow's economic growth model that make it close to the reality. Under the premise of the complete county economic system, we have emphatically studied the relationship between the dynamic changes of the knowledge stock and acquisition...
In order to reduce production cost of Pseudomonas aeruginosa T1, which has the ability of producing the biosurfactant when using crude oil as the sole carbon source, Three experimental methodologies (Plackett-Burman design (PBD), steepest ascent design (SAD), Central composite rotatable design (CCRD)) were applied to optimize the medium ingredients of the strain. In the verification experiment, the...
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