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| 1 | A new method for determination of satellite orbits by transfer显示文摘The original idea of a new method for determination of satellite orbits by transfer is from Two-Way Satellite Time and Frequency Transfer (TWSTFT). The original method is called 'determination of satellite orbit by transfer'. The method is not only for determination of satellite orbit but also for the time transfer with high accuracy and precision. The advantage is that the accuracy and the precision for determination of satellite orbit are very high and the new method is favorable for various applications. The combination of various signals disseminated and received forms various modes of satellite orbit determinations. If receivers at stations receive the own station-disseminated signals via a satellite transponder, it forms an orbit determination mode called 'receiving the own station-disseminated signals mode'. If receivers at all stations receive the signals disseminated from the master station via satellite transponders, it forms an orbit determination mode called 'receiving the master station-disseminated signals mode'. If all of receivers at stations receive all stations-disseminated signals via satellite transponders, it forms an orbit determination mode called 'receiving all stations-disseminated signals mode'. Also there are other combinations of signals for satellite orbit determination. For dif- ferent orbit determination modes with different signal combinations, their rigorous formulae of proc- essing are hereby presented in this paper. The accurate and the precise satellite orbit determination for both of the modes, 'receiving the own station-disseminated signals mode' and 'receiving the master station-disseminated signals mode' is attempted. It shows that the accuracy and precision for both of modes are nearly the same, the ranging accuracy is better than 1 cm, and the observation residuals of satellite orbit determination are better than 9 cm in the observation duration of 1 day. | LI ZhiGang YANG XuHai AI GuoXiang SI HuLi QIAO RongChuan FENG ChuGang | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，3： | 17 |
| 2 | Methods of rapid orbit forecasting after maneuvers for geostationary satellites显示文摘A geostationary(GEO) satellite may serve as a navigation satellite,but there is a problem that maneuvers frequently occur and the forces are difficult to model.Based on the technique of determining satellite orbits by transfer,a predicted orbit with high accuracy may be achieved by the method of statis-tical orbit determination in case of no maneuver force.The predicted orbit will soon be invalid after the maneuver starts,and it takes a long time to get a valid orbit after the maneuver ends.In order to improve ephemeris usability,the method of rapid orbit forecasting after maneuvers is studied.First,GEO satellite movement is analyzed in case of maneuvers based on the observation from the orbit meas-urement system by transfer.Then when a GEO satellite is in the free status just after maneuvers,the short arc observation is used to forecast the orbit.It is assumed that the common system bias and biases of each station are constant,which can be obtained from orbit determination with long arc observations.In this way,only 6 orbit elements would be solved by the method of statistical orbit determination,and the ephemeris with high accuracy may be soon obtained.Actual orbit forecasting with short arc observation for SINOSAT-1 satellite shows that,with the tracking network available,the precision of the predicted orbit(RMS of O-C) can reach about 5 m with 15 min arc observation,and about 3 m with 30 min arc observation. | YANG XuHai LI ZhiGang FENG ChuGang GUO Ji SHI HuLi AI GuoXiang WU FengLei QIAO RongChuan | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，3： | 10 |
| 3 | Determination of Chinese mobile SLR sites'coordinates显示文摘The geocentric coordinates of three mobile sites including Fangshan in Beijing, Urumqi in the Xinjiang Uy-gur Autonomous Region and Lhasa in Tibet are determinedin the ITRF2000 frame by means of both the global SLRdata and the mobile (SLR) data obtained by a mobile satel-lite laser ranging (SLR) apparatus from Aug. 2000 to Dec.2001. The results showed that the geometrical performance of Chinese SLR network has been significantly improved. | FENG Chugang, CAI Wusan, ZHU Yuanlan & YANG Fumin Shanghai Astronomical Observatory, Chinese Academy of Sciences Center for Astro-Geodynamical Research, Chinese Academy of Sciences, Shanghai 200030, China Correspondence should be addressed to Feng Chugang (e-mail: fcg@center.shao.ac.cn) | 2003 | Chinese Science Bulletin2003，48，21： | 3 |
| 4 | Satellite orbit determination by transfer with differenced ranges显示文摘The original idea of orbit determination called 'determination of satellite orbit by transfer' was proposed by the National Time Service Center,Chinese Academy of Sciences.It shows that the system is very stable and the orbit determination accuracy is improved greatly.A new observation mode called 'differenced ranges between master station and slave stations by transfer' is introduced.It is the development of 'determination of satellite orbit by transfer'.In principle,the differenced ranges between master station and slave stations have a high angular resolution,and strongly constrains in the transverse direction of satellite orbit,perpendicular to the line-of-sight.The principle of 'differenced ranges between master station and slave stations by transfer' is discussed in detail.And differenced ranges in combination with ranging data were used to determine satellite's orbit and orbit prediction under different arc observations.It shows that orbit determination accuracy for orbit prediction can be improved with differenced ranges in combination with ranging data. | YANG Ying LI ZhiGang YANG XuHai FENG ChuGang CAO Fen | 2012 | Chinese Science Bulletin2012，57，36： | 2 |
| 5 | Physical structure and combustion properties of super fine pulverized coal partide显示文摘 | Jiang Xiumin Zheng Chugang Yah Che | 2002 | Fuel2002，81，： | 1 |
| 6 | Moisture barrier characteristics of organoclay-epoxy nanocomposites 显示文摘 | KIM J K HU Chugang WOO R S C | 2005 | Compos Sci Teehnol2005，65，5： | 1 |
| 7 | Satellite orbit determination combining C-band ranging and differenced ranges by transfer显示文摘The constraint in the transverse direction of satellite orbit with differenced ranges between master station and slave stations by transfer as an angular observation data is explained in theory. Differenced ranges in combination with C-band ranging by transfer were used in satellite orbit determination. The position error of overlapped orbit differences for combining is less than that for ranging only. The residual of predicted orbit forward 5.5 days for combining is 3.1762 m, while the residual for ranging only with the same duration is 3.5380 m. Both the orbital overlapping and orbit prediction experimentations can testify the constraint in the transverse direction of satellite orbit with differenced ranges, and the results show that the accuracy of orbit determination and orbit prediction is improved by combining differenced ranges and C-band ranging. | YANG Ying YANG XuHai LI ZhiGang FENG ChuGang | 2013 | Chinese Science Bulletin2013，58，19： | 1 |
| 8 | Geostationary orbit determination using SATRE显示文摘 | Hui Lei ZhiGang Li XuHai Yang WenJun Wu Xuan Cheng Ying Yang ChuGang Feng | 2011 | Advances in Space Research2011，，5： | 1 |
| 9 | RNA-seq analysis reveals the critical role of the novel lnc RNA BIANCR in intramuscular adipogenesis through the ERK1/2 signaling pathway显示文摘Background Long non-coding RNAs(lncRNAs)regulate numerous biological processes,including adipogenesis.Research on adipogenesis will assist in the treatment of human metabolic diseases and improve meat quality in livestock,such as the content of intramuscular fat(IMF).However,the significance of lncRNAs in intramuscular adipogenesis remains unclear.This research aimed to reveal the lncRNAs transcriptomic profiles in the process of bovine intramuscular adipogenesis and to identify the lncRNAs involved in the adipogenesis of bovine intramuscular adipocytes.Results In this research,a landscape of lncRNAs was identified with RNA-seq in bovine intramuscular adipocytes at four adipogenesis stages(0 d,3 d,6 d,and 9 d after differentiation).A total of 7035 lncRNAs were detected,including 3396 novel lncRNAs.Based on the results of differential analysis,co-expression analysis,and functional prediction,we focused on the bovine intramuscular adipogenesis-associated long non-coding RNA(BIANCR),a novel lncRNA that may have an important regulatory function.The knockdown of BIANCR inhibited proliferation and promoted apoptosis of intramuscular preadipocytes.Moreover,BIANCR knockdown inhibited intramuscular adipogenesis by regulating the ERK1/2 signaling pathway.Conclusion This study obtained the landscape of lncRNAs during adipogenesis in bovine intramuscular adipocytes.BIANCR plays a crucial role in adipogenesis through the ERK1/2 signaling pathway.The results are noteworthy for improving beef meat quality,molecular breeding,and metabolic disease research. | Xinhao Ma Xinran Yang Dianqi Zhang Wenzhen Zhang Xiaoyu Wang Kuncheng Xie Jie He Chugang Mei Linsen Zan | 2023 | Journal of Animal Science and Biotechnology2023，14，3： | 1 |
| 10 | Synthesisandphotocatalyticproperty of Ag+/ FeVO4 photocatalyst显示文摘 | WangMin WangLi’ao ChuGang etal | 2010 | JournalofFunctionalMaterials2010，41，2： | 1 |
| 11 | SHORDE I program system and applications显示文摘 | He Miaofu Zhu Wenyao Feng Chugang Huang Cheng Chang Hua | 1988 | Celestial Mechanics (-)1988，，1： | 1 |
| 12 | SHORDE I program system and applications显示文摘 | He Miaofu Zhu Wenyao Feng Chugang Huang Cheng Chang Hua | 1988 | Celestial Mechanics (-)1988，，1： | 1 |
| 13 | Physical structure and combustion properties of super fine pulverized coal particle显示文摘 | Jiang Xiumin Zheng Chugang Yan Che | 2002 | Fuel2002，81，： | 1 |
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