BEIJING, June 4 (Xinhua) -- The following is a summary of published science and technology news of China.

BEIDOU NAVIGATION

The 54th and penultimate satellite of the BeiDou Navigation Satellite System (BDS) has started operation in the network after completing in-orbit tests and network access evaluations, according to a statement from China's Satellite Navigation System Management Office.

The satellite, launched from the Xichang Satellite Launch Center on March 9, is a geostationary earth orbit satellite of the BDS-3 system. It was developed by the China Academy of Space Technology.

LANDSLIDE MONITORING

Chinese researchers have designed an improved remote sensing method for more efficient landslide monitoring.

The researchers from the Chinese Academy of Sciences proposed the improved offset tracking method to optimize a more efficient workflow, as well as an improved algorithm based on homogeneous samples.

EPIGENOME FOR RICE

Chinese scientists have mapped the epigenome of 20 rice varieties to reveal the genome structure of rice, according to a study recently published in the journal Nature Communications.

Researchers from Huazhong Agricultural University collected more than 500 groups of genome data, covering 20 representative rice varieties, and defined 15 chromatin states in the epigenome maps. Enditem

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