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| 1 | Analysis on the positioning precision of CAPS显示文摘As a newly developed satellite positioning system, the Chinese Area Positioning System (CAPS) is a typical direct sequence spread spectrum ranging system like GPS. The positioning precision of such navigation signals depends on many factors, including the pseudo-code rate, the signal to noise ratio, the processing methods for tracking loops and so on. This paper describes the CAPS link budget, the solution approach for CAPS positioning, focusing on the autocorrelation function feature of C/A code signals. The CAPS signal measurement precision is studied by the software approach together with theoretical analysis of the range resolution. Because the conventional Delay Lock Loop (DLL) is vul- nerable to the impact of noise, a narrow correlator and multiple correlators as well as the corresponding discrimination methods of phases are proposed, which improves the robustness of DLL and the code-phase resolution of the measurement. The results show that the improvement of the DLL structure and the discrimination method are the most important way to improve the ranging resolution. Theoretical analysis and experimental results show that a CAPS receiver could reach a 20-m positioning precision by using three satellites with a supported height from an altimeter. | JI YuanFa1,2 & SUN XiYan1,2 1 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Applied Science and Technology College, Guilin University of Electronic Technology, Guilin 541004, China | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，3： | 3 |
| 2 | Variation of δ^(13)C in karst soil in Yaji Karst Experiment Site, Guilin显示文摘This study deals with δ13C variation in karst soil system of Yaji Karst Experiment Site, Guilin, a typical region of humid subtropical karst formations. Samples of near ground air, plant tissue, soil and water (soil solution and karst spring) were respectively collected on site in different seasons during 1996-1999. Considerable variation of δ13C values are not only found with different carbon pools of soil organic carbon, soil air CO2 and soil water HCO3-, but also with the soil depths and with different seasons during a year. The δ13C values of CO2 both of near ground air and soil air are lower in July than those in April by 1‰-4‰ PDB. Our results indicate that the δ13C values of carbon in the water and air are essentially dependent on interface carbon interaction of air-plant-soil-rock-water governed by soilorganic carbon and soil CO2 in the system. | PAN Genxing, HE Shiyi, CAO Jianhua, TAO Yuxiang & SUN YuhuaCollege of Resource and Environment Science, Nanjing Agricultural University, Nanjing 210095, China Karst Dyanmics Laboratory, Ministry of Land and Resources, Guilin 541004, China | 2002 | Chinese Science Bulletin2002，47，6： | 1 |
| 3 | Polyacrylate- core/TiO-shellnanocomposite particles prepared by in situ emulsion polymerization显示文摘 | Zhaoquan Ai Guilin Sun Qilong Zhou | 2006 | Appl Polym Sci2006，，102： | 1 |
| 4 | Polyaerylate-core/TiOz-shell nanocomposite particles prepared by in situ emulsion polymerization 显示文摘 | Ai Zhaoquan Sun Guilin Zhou Qilong | 2006 | Journal of Applied Polymer Science2006，102，： | 1 |
| 5 | Changes of Indocyanine Green and Fluorescein Angiography in Multiple Evanescent White-dot Syndrome: A Case Report显示文摘Purpose: To study the clinicopathological change on 'Multiple Evanescent White-dot Syndrome (MEWDS)'through fundus angiogrphy analyses.Methods:Examing the case with fluorescein angiography (FFA) and indocyanine green angiography(ICGA), visual field and following up for 15 months.Results :There exist multiple white dots in the fundus photo and angiography. The changes on ICGA maintain longer than fundus photo and FFA. Papille may be edematous and macula could present with special hypofluorescent flecks.Conclusions:MEWDS has specific angiographic features. Its pathological changes involve deep retinal pigment epithelium(RPE) as well as choroidal capillaries. The prognosis of the visual acuity for MEWDS is very good. | Changxian Yi, Guilin Zhao, Jiexiong Ou, Hong Yan Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China | 2003 | Eye Science2003，19，3： | 1 |
| 6 | Melatonin modulates the effects of diethylstilbestrol (DES) on the anterior pituitary of the female Wistar rat显示文摘 | Zhao Weijiang Shi Zhongfang Yuan Fang Li Guilin Sun Yilin Zhang Yazhuo Wang Zhongcheng | 2010 | Folia Histochemica et Cytobiologica2010，，2： | 1 |
| 7 | Xenobiotic metabolism of plant secondary compounds in the English grain aphid, Sitobion avenae (F.) (Hemiptera: Aphididae)显示文摘 | Maoxin Zhang Tingting Fang Guilin Pu Xiaoqin Sun Xuguo Zhou Qingnian Cai | 2013 | Pesticide Biochemistry and Physiology2013，，： | 1 |
| 8 | Numerical dispersion and numerical loss in explicit finite-difference time- domain methods in lossy media显示文摘 | SUN Guilin TRUEMAN C W | 2005 | IEEE Transac- tions on Antennas and Propagation2005，53，11： | 1 |
| 9 | Polyacrylatecore/TiO2-shell nanocomposite particles prepared by in situ emulsion polymerization显示文摘 | Zhaoquan Ai Guilin Sun Qilong Zhou | 2006 | Journal of Applied Polymer Science2006，102，： | 1 |
| 10 | Some fundamental characteristics of the one-dimensional alternate-direction-implicit finite-difference time-domain method显示文摘 | Sun Guilin Christopher W T | 2004 | IEEE Trans on Microwave Theory and Techniques2004，52，1： | 1 |
| 11 | Effects of topography and vegetation on distribution of rare earth elements in calcareous soils显示文摘This study investigated the impact of topography and vegetation on distribution of rare earth elements(REEs)in calcareous soils using methods of single extraction and mass balance calculation. The purposes of the study were to set a basis for further research on the biogeochemical REE cycle and to provide references for soil–water conservation and REE-containing fertilizer amendments. The results show a generally flat Post-Archean Average Australian Shale—normalized REE pattern for the studied calcareous soils. REE enrichment varied widely. The proportion of acidsoluble phases of heavy REEs was higher than that of light REEs. From top to bottom of the studied hills, dominant REE sources transitioned from limestone in-situ weathering to input from REE-containing phases(e.g., clay minerals,amorphous iron, REE-containing fluids). Our results indicate that the REE content of calcareous soils is mainly controlled by slope aspect, while the enrichment degree of REEs is related to geomorphological position and vegetation type.Furthermore, the proportion of acid-soluble phases of REEs is mainly controlled by geomorphological position. | Zhaoliang Song Yuntao Wu Xiaomin Yang Zijuan Xu Linan Liu Xiaodong Zhang Qian Hao Shaobo Sun Guilin Han Congqiang Liu | 2017 | Acta Geochimica2017，36，3： | 1 |
| 12 | Exosomes in cancer immunoediting and immunotherapy显示文摘As an important means of communication among cells,exosomes are being studied more and more widely,especially in the context of cancer immunotherapy.In the phase of tumor immunoediting,exosomes derived from tumor cells and different immune cells have complex and changeable physiological functions,because they carry different proteins and nucleic acid from the source cells.Based on the role of exosomes in the communication between different cells,cancer treatment methods are also under continuous research.This review briefly introduces the molecular composition of exosomes,which is closely related to their secretion mechanism.Subsequently,the role of exosomes encapsulating different information molecules is summarized.The role of exosomes in the three phases of tumor immunoediting is introduced in detail,and the relevant literature of exosomes in the tumor immunemicroenvironment is summarized by using a novel framework for extracting relevant documents.Finally,it summarizes the various exosome-based immunotherapies currently proposed,as well as the challenges and future prospects of exosomes in tumor immunotherapy. | Yarong Zhao Luotong Liu Rongze Sun Guilin Cui Shuyu Guo Songren Han Ziwei Li Tian Bai Lesheng Teng | 2022 | Asian Journal of Pharmaceutical Sciences2022，17，2： | 1 |
| 13 | Lead Isotope Studies of Massive Surphur-Iron-Gold Deposits in the Tongling Area, Anhui Province显示文摘Pb isotope ratios and their variation have been measured and explained on ores of massive S-Fe-Au depos-its hosted in the Middle-Upper Carboniferous, on feldspars from diorite bodies closely related tomineralization and on whole rocks from ore-hosting strata (carbonate rocks) in the Tongling area, Anhui Prov-ince. Through a comparison of Pb isotope features of these geological bodies, it has been suggested that oresubstances of the deposits were derived from ore-hosting strata. In the meanwhile, the measurement of ore Pbisotopes of different mineralization types of the same deposit indicates that different mineralization types havedistinct Pb isotope characteristics, showing the potentiality of the Pb isotopic method used in mineral explora-tion. | Huang Bin Research Institute of Geology and Mineral Resources, China National Nonferrous Metals Industry Corporation. Guilin, Guangxi Sun Sheping | 1992 | Acta Geologica Sinica(English Edition)1992，66，2： | 1 |
| 14 | Science with the 2.5-meter Wide Field Survey Telescope(WFST)显示文摘The Wide Field Survey Telescope(WFST) is a dedicated photometric surveying facility being built jointly by University of Science and Technology of China(USTC) and the Purple Mountain Observatory(PMO). It is equipped with a 2.5-meter diameter primary mirror, an active optics system, and a mosaic CCD camera with 0.73 gigapixels on the primary focal plane for highquality image capture over a 6.5-square-degree field of view. The installation of WFST near the summit of Saishiteng mountain in the Lenghu region is scheduled in summer of 2023, and the operation is planned to start three months later. WFST will scan the northern sky in four optical bands(u, g, r and i) at cadences from hourly/daily in the deep high-cadence survey(DHS) program, to semi-weekly in the wide field survey(WFS) program. During a photometric night, a nominal 30 s exposure in the WFS program will reach a depth of 22.27, 23.32, 22.84, and 22.31(AB magnitudes) in these four bands, respectively, allowing for the detection of a tremendous amount of transients in the low-z universe and a systematic investigation of the variability of Galactic and extragalactic objects. In the DHS program, intranight 90 s exposures as deep as 23(u) and 24 mag(g), in combination with target of opportunity follow-ups, will provide a unique opportunity to explore energetic transients in demand for high sensitivities, including the electromagnetic counterparts of gravitational wave events, supernovae within a few hours of their explosions,tidal disruption events and fast, luminous optical transients even beyond redshift of unity. In addition, the final 6-year co-added images, anticipated to reach g■25.8 mag in WFS or 1.5 mags deeper in DHS, will be of fundamental importance to general Galactic and extragalactic science. The highly uniform legacy surveys of WFST will serve as an indispensable complement to those of the Vera C. Rubin Observatory's Legacy Survey of Space and Time(LSST) that monitors the southern sky. | Tinggui Wang Guilin Liu Zhenyi Cai Jinjun Geng Min Fang Haoning He Ji-an Jiang Ning Jiang Xu Kong Bin Li Ye Li Wentao Luo Zhizheng Pan Xuefeng Wu Ji Yang Jiming Yu Xianzhong Zheng Qingfeng Zhu Yi-Fu Cai Yuanyuan Chen Zhiwei Chen Zigao Dai Lulu Fan Yizhong Fan Wenjuan Fang Zhicheng He Lei Hu Maokai Hu Zhiping Jin Zhibo Jiang Guoliang Li Fan Li Xuzhi Li Runduo Liang Zheyu Lin Qingzhong Liu Wenhao Liu Zhengyan Liu Wei Liu Yao Liu Zheng Lou Han Qu Zhenfeng Sheng Jianchun Shi Yiping Shu Zhenbo Su Tianrui Sun Hongchi Wang Huiyuan Wang Jian Wang Junxian Wang Daming Wei Junjie Wei Yongquan Xue Jingzhi Yan Chao Yang Ye Yuan Yefei Yuan Hongxin Zhang Miaomiao Zhang Haibin Zhao Wen Zhao | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，10： | 1 |
| 15 | Study on chromatographic fingerprint of sarcandra glabra (Thunb.) by microwave-assisted extraction coupled to HPLC/DAD显示文摘Microwave-assisted extraction(MAE)was used for extraction of effective components of sarcandra glabra(Thunb.),and then chromatographic fingerprint of sarcandra glabra(Thunb.)was studied by high performance liquid chromatography/diode array detector(HPLC/DAD).The conditions of MAE were optimized by an orthogonal experiment,and then the authentication and validation of the chromatographic fingerprint were conducted.Nine peaks were identified as common peaks in the fingerprint chromatograms,and isofraxidin was considered as a reference compound and quantified.Relative standard deviations of retention time and peak area of each component were less than 3% and 8%,respectively.Similarity and difference analysis were conducted by use of PCA and relation coefficient.Twenty batches of sarcandra glabra(Thunb.)samples from two different producing areas could be classified into two different groups in the PCA model.The results showed that MAE-HPLC/DAD method was simple,efficient and stable for the study of complex chromatographic fingerprint of sarcandra glabra(Thunb.),which could provide more reliable and precise information for quality evaluation. | Zhuo-Min Zhang1,Zong-Ning Guo1,Gui-Hua Ruan1,2,Jian-Chao Deng1,Xiao-Hua Xiao1,Gong-Ke Li11.School of Chemistry and Chemical Engineering,Sun Yat-sen University,Guangzhou 510275 2.Department of Material and Chemistry,Guilin University of Technology,Guilin 541004,China | 2010 | Journal of Pharmaceutical Analysis2010，22，4： | 1 |
| 16 | Polyacrylate-core/TiO2-shell nanocomposite particles prepared by insitu emulsion polymerization显示文摘 | Zhaoquan Ai Guilin Sun Qilong Zhou | 2006 | Journalof Applied Polymer Science2006，102，： | 1 |
| 17 | Non-agricultural tand expension and its driving forces-a multi-temporal study of Suzhou, China显示文摘 | Guilin Li Jie Chert Zhiying Sun | 2007 | Inter Journal of Sustainable Development & world Ecology2007，14，： | 1 |
| 18 | Analysis and numerical experiments on the numerical dispersion of two-dimensional ADI-FDTD 显示文摘 | Sun Guilin Trueman Christopher W | 2003 | IEEE Antennas and Wireless Propagation Letters2003，，2： | 1 |
| 19 | The up-regulation of voltage-gated sodium channels subtypes coincides with an increased sodium current in hippocampal neuronal culture model显示文摘 | Feng Guo Xiaoxue Xu Jiqun Cai Huiyuan Hu Wei Sun Guilin He Dongxue Shao Lei Wang Tianbao Chen Chris Shaw Tong Zhu Liying Hao | 2013 | Neurochemistry International2013，，3： | 1 |
| 20 | Analysis and numerical experiments on the numerical dispersion of two-dimensional ADI-FDTD显示文摘 | Sun Guilin Trueman Christopher W | 2003 | IEEE Antennas and Wireless Propagation Letters2003，，2： | 1 |
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