A structural equation model to access the regional public brands of agricultural products: Case of Chinese Yingde black tea.

The regional public brand of agricultural products plays an important role in the development of agricultural economy. How to effectively build regional public brands for agricultural products is an urgent practical problem that needs to be solved in various regions. This study uses Chinese Yingde black tea as a case, aims to understand how government support, resource endowment, industrial clusters, and regional culture affect the regional public brand of agricultural products based on regional brand theory.

Solid State Phase Equilibria of an Al⁻Sn⁻Y Ternary System.

A complete understanding of the solid-state phase equilibria of the ternary Al⁻Sn⁻Y system is essential for the development of both Al-based structural materials and Sn-based lead-free solders. In this work, the phase relationships in the Al⁻Sn⁻Y ternary system at 473 K were investigated mainly by means of X-ray powder diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) with energy disperse spectroscopy (EDS) analysis. The existence of 12 binary compounds, namely Sn₃Y, Sn₅Y₂, Sn₂Y, SnY, Sn₄Y₅, Sn₃Y₅, AlY₂, Al₃Y₅, Al₂Y₃, AlY, Al₂Y and α⁻Al₃Y, was confirmed.