Advanced Materials Research Vols. 361-363

Abstract: Bidding evaluation is an important aspect in equipment procurement, and there are still some problems with the current bidding evaluation method being used. This paper presents a bidding evaluation method which combines the entropy-weight method and the ELECTRE method to create a new bidding evaluation model. Finally, the application of this bidding evaluation method in power equipment purchase is illustrated by using thermal power auxiliary equipment bidding procurement as an example.

Abstract: Biomass energy is a renewable clean energy, which may transfer the perennial biomass into energy, in additions, the plants will absorb the carbon dioxide in the air to reduce the speed of global warming. In this research, the biomass plant -Jatropha curcas will be cultivated on the poor gravel soil and drought land at Taitung in Taiwan, except the economic benefits, the advantages for the surrounding environment also will be discussed. In economical terms, this study comparing the benefits between glowing Jatropha curcas and the aboriginal people’s traditional crops including corn and millet. The results show that glowing Jatropha curcas harvest in its fourth year is same with planting corn but 25% better than planting millet, and will uprise year after year. As for the advantages for the surrounding environment, glowing Jatropha curcas obscured much more sunlight than other plants, the ground surface cooling effect is more obvious, in gravel soil, it can be reduced 60% ,while in drought land is 25%. For function of soil conservation, the depth and the land coverage area of the plant’s root will be measured for estimation. From the results, one can find that planting Jatropha curcas will be better than planting corn or millet, and the performance will enhancing year after year by lasting for 35~50 years, it means that, Jatropha curcas was definitely a good choice for planting on gravel soil or drought land no matter for economical, environmental or land preservative’s sake.

Abstract: In China, quality credit is an important part of the social credit system, and evaluation of quality credit is the key to the construction of quality credit system. In this paper, on the basis of product quality credit factor analysis and evaluation index construction, a hybrid strategy of three stages is proposed according to the different nature of indicators. The emphasis is put on intelligent evaluation model based on statistics and artificial neural network. According to the results of experimental verification, this credit evaluation method shows a high accuracy for the evaluation of quality credit.

Abstract: In order to solve the fault diagnosis problem of diesel engine, Elman neural network (ENN) was applied to build a fault diagnosis model of diesel engine. The training algorithm is in introduced and at the same time, the process of diesel engine fault diagnosis is also expatiated. The diagnosis results indicate the reliability. So a contingent fault of diesel engine can be identified effectively.

Abstract: The rapid development of national economy has brought serious environmental pollution problems. The issue of emission reduction has become one of the most important missions in China. As one of the largest sources of energy consumption and pollution emission, the power generation industry plays an important role in the problem of emission reduction. According to Chinese actual conditions, this study takes into account the inter-regional difference between the tasks of environmental emission reduction and the corresponding costs due to various factors, and proposes an inter-regional power-generation economic exchange analysis model under environmental constraints. The model integrates the environmental constraints, as well as the transmission costs and transmission lines constraints, and provides the results of optimal exchange combinations. The analysis of an example indicates that the inter-regional economic power exchange can maximize inter-regional advantages and minimize the costs of economic dispatch, which requires a sound transmission system and transmission pricing system.

Abstract: To make the reliability evaluation suitable for the planning distribution network,which contain the large-scale existing network and the uncertain planning part,proposes an algorithm based on the idea of section and enumeration method. This algorithm fully considers how the breakers, lines, switches, distribution transformers and other equipment failures impact the reliability index of distribution network .The effects of both the alternative path and the refusing of fuses are considered in the proposed algorithm. The calculation results of actual case show that the proposed method is effective.

Abstract: In this paper, a generic and flexible optimisation methodology is developed to represent, model, solve and analyse the iron ore supply chain system by integrating of iron ore shipment, stockpiles and railing within a whole system. As a result, an integrated train-stockpile-ship timetable is created and optimised for improving efficiency of overall supply chain system. The proposed methodology provides better decision making on how to significantly improve rolling stock utilisation with the best cost-effectiveness ratio. Based on extensive computational experiments and analysis, insightful and quantitative advices are suggested for iron ore mine industry practitioners. The proposed methodology contributes to the sustainability of the environment by reducing pollution due to better utilisation of transportation resources and fuel.

Abstract: Resource-based city has many characteristics of urban sustainable development, but because of resource's gradual depletion, population explosion and the depravation of natural ecological environment, it is more special in the road of sustainable development. The sustainable development of resource-based city has more urgency, complexity and difficulty, so traditional linear model of economic development has been unable to realize its sustainable development. Building on circular economy characterized by closing material cycle, to achieve the harmony of human and nature, the economic development and environment protection win-win strategy goal is an inevitable trend.

Abstract: This paper introduces the "second Five-Year" period,Comprehensive management of rural pollution in Dalian,Ecological protection and construction of major initiatives,Establish and improve the rural garden, village and township enterprises in villages and the development of circular economy model,Actively promote the sustainable development of circular economy in rural areas,Care at home and abroad for economic development of rural circulation and reference reference peers.

Abstract: Based on the analysis of the existed conceptual models and their main problems, a new 3-D conceptual model for bedrock fracture groundwater at Zhangzhou Geothermal Field is established and solved. The results show that temperature distribution of bedrock fracture groundwater is strongly controlled by fault-fracture system and a high temperature cylinder in the fault formed by convection of hot water heats top surface of bedrock and thus forms the center high temperature part. Heat flux reaches a maximum at center high temperature part and reduces towards the edge of the geothermal field. The Quaternary pore water movement reduces the maximum and local heat flux. These are important for guiding and optimizing the future exploration and exploitation at Zhangzhou Geothermal Field.