Athletes are constantly looking to advances in technology to gain a competitive advantage,to jump just a bit higher,to hit a ball just a bit farther,and to retu
Pentazole,the last discovered structural unit of the azole series of compounds,has received considerable attention from research-ers[1,2].The pentacyclic struct
The analysis centers of the Multi-GNSS Pilot Project of the International GNSS Service provide orbit and clock products for the global navigation satellite syst