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The deterioration process of the epoxy phenolic coated tinplate in functional beverage was studied by electrochemical impedance spectroscope (EIS). The surface morphology was characterized SPM and SEM. The results showed that corrosion pits were observed on the surface after exposing the coating system to functional beverage for 364 days. The breakages of the organic coating lead to the corrosion of substrate metal. A new parameterpextracting directly from the Bode plot was presented to characterize the deterioration degree of the coating system. Usingpvalue as the discrimination indicator of the deterioration degree of organic coating was presented in this paper.

The purpose is to evaluate the effect of UV irradiation on the bond strength between epoxy-based glass fiber posts and resin cement. Twelve epoxy-based glass fiber posts were randomly divided into three groups. Group 1 (Cont.): No surface treatment. Group 2 (Low-UV): UV irradiation was conducted from a distance of 10 cm for 10 min. Group 3 (High-UV): UV irradiation was conducted from a distance of 1 cm for 3 min. A resin cement (CLEARFIL SA LUTING) was used for the post cementation to form resin slabs which contained fiber posts in the center. Microtensile bond strengths were tested and the mean bond strengths (MPa) were 18.81 for Cont. group, 23.65 for Low-UV group, 34.75 for High-UV group. UV irradiation had a significant effect on the bond strength (p<0.05). UV irradiation demonstrates its capability to improve the bond strength between epoxy-based glass fiber posts and resin cement.

As an ecosystem complex integrated with functions of agricultural production, residence, and socio-cultural activity, linpan (wooded lot) has characterized socio-ecologically and culturally the rural landscape in Chengdu Plain. Although functioning for centuries without disruption and supporting continuously the regional prosperity, it is currently under big threats due to rapid urbanization and a growing population. The overall goal of this paper is to improve our understanding of the linpan system and its services. Within the framework of four categories of ecosystem services, including provisioning, regulating, cultural and supporting services, the deliverables by linpan were elaborated respectively based on document review and field survey. It was addressed that as a localized cultural landscape, linpan has and will continue to provide various services to rural as well as urban people. These services including material and non-material values were highly recognized by local people, but the perceived importance of services were changeable with the socio-economic development, market fluctuation, and people’s awareness rise. Regarding the preservation of the linpan system as an important agricultural heritage system, cultural services should not be neglected within a landscape management framework. Finally, this study called for attention to the dynamics of the linpan system which required an adaptive approach for assessing and managing ecosystem services.