Yongyu
Yongyu Feng, Guiyang City CN
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20150232964 | METHOD OF PURIFYING SODIUM METAL - This invention provides a method to purify sodium metal. The developed apparatus consists of a top flange, a transparent slice, a hollow flange, a vacuum distillation kettle, gaskets, and bolts. With this apparatus, solid sodium is liquefied by heating. The volatile impurities contained in the liquid sodium metal evaporate out of the vacuum pump. After heating the liquid sodium to a high temperature, circulating cooling water is added to the condenser tube by radiation-auxiliary distillation. High-purity argon is then added to remove volatile impurities, and thermal radiation is performed to accelerate the evaporation rate at the surface of the liquid sodium. Consequently, gaseous sodium rapidly condenses on the condenser tube and becomes solid sodium. Thermal radiation-auxiliary distillation is finally realized to refine sodium metal. This invention uses the sub-boiling distillation principle of thermal radiation-auxiliary distillation to purify sodium metal, in which significant purification effect and high efficiency are achieved. | 08-20-2015 |
Yongyu Lin, Shenzhen CN
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20150215261 | METHODS AND DEVICES FOR ONLINE CONTACTS EXPANSION - A device may include a storage medium and a processor. The processor may execute a set of instructions in the storage medium to: provide a first platform; provide a first user account registered in the first platform to a user; access, through the first user account, a second user account of the user registered in a second platform; obtain, from the second user account, a communication log of the second user account; obtain an address list from the second user account; obtain a plurality of contacts from the second user account who have a prior communication with the user through the second user account based on the communication log; select, from the plurality of contacts, at least one recommended contact for the user; combine the at least one recommended contact with the address list in to a combined list; and display the combined list via the first user account, highlighting the at least one recommended contact to the user. | 07-30-2015 |
Yongyu Zhang, Shanghai CN
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20100093099 | DETECTION OF BLOOD PLASMA DANSHENSU AND SALVIANOLID ACID B DISSIPATING BLOOD STASIS BOTANICAL - A detection method of blood plasma danshensu and salvianolic acid B of dissipating blood stasis botanical is disclosed. The method includes: (1) pretreating mammalian plasma sample: applying the plasma with medicine to small column of Waters Oasis HLB activated by methanol and water; after leaching and eluting, drying and enriching the eluent; after redissolving with mobile phase, measuring by UPLC/MS; (2) UPLC/MS measuring: UPLC condition: chromatographic column: Acquity UPLC BEH C | 04-15-2010 |
20100093103 | DETECTION OF BLOOD PLASMA SCHIZADRIN B OF DISSIPATING BLOOD STASIS BOTANICAL - A detection method of blood plasma schizadrin B of dissipating blood stasis botanical is disclosed. The method includes: (1) extracting schizadrin B from plasma of mammalian administered dissipating blood stasis botanical by ethyl acetate with the volume ratio 1:4, whirling 3-5 mins, centrifugating at 9600 rpm for 10 mins, drying and enriching the upper layer at 25-30° C., and redissolving with mobile phase; (2) UPLC/MS measuring: UPLC condition: chromatographic column: Acquity UPLC BEH C | 04-15-2010 |