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Based on the analysis of the properties of the copper ore from Jinggu area in Yunnan province, a suitable technical route was presented for processing of eligible copper concentrate and the main factors i.e. grinding fineness, Na2S dosage and collector dosage, affecting the quality of roughing concentration was investigated. On this basis, a close-circuit flotation test scheme was preceded, which obtained a high quality copper concentrate with Cu grade of 16.08%, copper recovery of 58.52%. The recovery of copper concentrate is much lower than the Cu recovery of roughing concentrate from the condition experiments. This may be contributed to the fact that fine slime carried by middling worsens the separation of copper minerals and gangues. The Mo was enriched in concentrate, which is significantly considered to recovery in further work.

Based on the analysis of the properties of the copper-molybdenum ore from Yunnan province, a suitable technical route was presented for processing of eligible molybdenum and copper concentrate with a high recovery. Moreover, the main factors i.e. grinding fineness and collector dosage, affecting the quality of roughing concentration was investigated. The optimum condition of bulk flotatuon were obtained.

The present study aims to characterize the copper ore from east area of Yunnan province. The results indicate that the ores is a representative low grade and and ultra-fine-grained ore. As a result, a suitable flotation flow i.e. “ultrafine grinding- sulphidizing and dispersing - bulk flotation with low dosage collector” was presented for processing of eligible copper concentrate with high recovery and the main factors i.e. grinding fineness, regulators types and dosage and collector dosage affecting the indexes of roughing concentration was investigated. As a result, a close-circuit flotation test scheme was proceeded, which obtained a high quality copper concentrate with Cu grade of 25.12%, copper recovery of 87.63%. This index is successful in the aim of recovery copper for such mixed copper ore.

Delamination is a particularly dangerous damage mode of high performance laminated composites. In order to describe the composites ductile cracking and its progressive evolution accurately, the adjusted exponential cohesive zone model (CZM) is adopted, which correlates the tensile traction with the corresponding interfacial separation along the fracturing interfacial zone. At first the adjusted exponential CZM is used to simulate the mode I delamination of the standard double cantilever beam (DCB). The simulated results are in good agreement with the corrected beam theory and the corresponding experimental results. Then in order to research how the interfacial properties influence the mode I fracture, the interfacial strength and the critical energy release rate are studied. The main results are obtained as follows. The interfacial strength plays a crucial role in the laminated composites delamination onset, and it affects the peak load significantly if there is not a pre-crack. Once the delamination propagation begins to occur in the laminated composites, the responses of the load-displacement plots are relatively insensitive to the interfacial strength, and only the critical energy release rate is of critical importance. Furthermore, the peak load increases with the increase of the critical energy release rate and interfacial strength.

Based on Jiangxi University of Traditional Chinese Medicine survey and found that the current development of TCM University in Jiangxi stadiums management exist some basic questions, and puts forward some corresponding countermeasures to these problems, and provides referential theory basis for the development of our school stadiums.

In view of inadequate post-games use of large and medium-sized stadiums both internationally and domestically, this thesis introduces several modes that represent the flexibility and multi-functionality of sports building design in our country. It aims to improve the availability of sports facilities and show wider adaptability of stadiums as well as to accelerate the development of nationwide fitness campaign and sports undertakings.

The three parameters of the earthquake ground motions(peak amplitude, spectrum and duration) and dynamic elasto-plastic properties of the building structure can be considered in elasto-plastic history analysis method, therefore it is significant for seismic performance assessment, nonlinear development progress and failure mechanic analysis of building structures under different level earthquake. The accuracy and availability for constitutive model of concrete and reinforcement subjected to cyclic loading have an important influence on reliability of the elasto-plastic history analysis of building structure based on material model. However, due to the complexity of concrete material, there is no unified constitutive model can be used to analyze nonlinear mechanical behavior of concrete until now. In this paper, a practical uniaxial hysteretic constitutive model of concrete and reinforcement is proposed, a computer program of material model is developed and the model is inserted into ABAQUS software with the user subroutine, using fiber beam element model and explicit time integration method, a elasto-plastic history analysis for shaking table test model of 12-story reinforced concrete frame is carried out. The comparison between computation analysis and experimental results shows that the model has a higher accuracy, efficiency and better availability, it is suitable for the constitutive model of concrete and reinforcement used in elasto-plastic history analysis of building structure.