Yan (), also known as the Great Yan (), was a state established in 756 by the Tang Dynasty general An Lushan, after he rebelled against the reign of Emperor Xuanzong of Tang in 755. The state was extinguished in 763, with the death of An Lushan's former subordinate, Shi Siming's son, Shi Chaoyi, who was the last person to claim the title as Yan's emperor.

Prevalence of diabetes among men and women in China.
The sequence of human genome.
One‐Dimensional Nanostructures: Synthesis, Characterization, and Applications
One-Dimensional Nanostructures: Synthesis, Characterization, and Applications †
Chemistry – An Asian Journal
An energy-efficient MAC protocol for wireless sensor network
High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends
An Energy-Efficient MAC Protocol for Wireless Sensor Network
PCA-SIFT: a more distinctive representation for local image descriptors
High frequency of mutations of the PIK3CA gene in human cancers.