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| 1 | SIS accuracy and service performance of the BDS-3 basic system显示文摘On December 27,2018,the basic system of the third-generation BeiDou navigation satellite system(BDS-3)completed the deployment of its constellation of 18 MEO networking satellites as well as the construction of the operation control system(OCS)and began to provide basic navigation services to users worldwide.Compared with BDS-2,BDS-3 aims to offer users better navigation signals and higher precision with a series of new technologies.For example,the spaceborne atomic clock of BDS-3 is upgraded for higher performance,the Ka-band inter-satellite link is adopted for inter-satellite ranging and communication,and new B1C and B2a signals are broadcast in addition to B1I and B3I signals(compatible with BDS-2).In addition,a 9-parameter model based on a spherical harmonic function is employed for ionospheric delay corrections.Using the observation data from 18 satellites of the basic system,this paper conducts a comprehensive evaluation of the pseudorange measurement characteristics,signal-in-space(SIS)accuracy of navigation messages and global service capability of BDS-3.The results indicate that the pseudorange measurement multipath effect and observation noise of BDS-3 satellites are better than those of BDS-2;additionally,with the support of inter-satellite links,the user range error(URE)of the BDS-3 satellite broadcast ephemeris is better than 10 cm,the precision of the broadcast clock parameter is better than 1.5 ns,and the SIS accuracy is better than 0.6 m overall.Different from the traditional Klobuchar model,the BeiDou global broadcast ionospheric delay correction model(BDGIM)can provide ionospheric delay corrections better than 70%for worldwide single-frequency users.The service capability evaluation of the basic system consists mainly of the accuracy improvement of the B1I and B3I signals according to BDS-2 as well as the global positioning accuracy of the new signals.These results prove that the BDS-3 basic system has achieved the design goal;that is,both the horizontal and the vertical global positioning accuracies are better than 10 m(95%).In the future,6 MEO satellites as well as 3 GEO satellites and 3 IGSO satellites for regional enhancement purposes will be deployed for full operation;consequently,BDS-3 will definitely provide a higher SIS accuracy and better service capability. | JinPing Chen XiaoGong Hu ChengPan Tang ShanShi Zhou YuFei Yang JunYang Pan Hui Ren YueXin Ma QiuNing Tian Bin Wu Yang Yu | 2020 | Science China(Physics,Mechanics & Astronomy)2020,63,6: | 14 |
| 2 | 调强适形放疗在乳腺癌保乳术后应用的系统评价(英文)显示文摘Objective:The aim of this study was to assess the long-term effect of breast conservation with breast intensitymodulated radiotherapy (IMRT) for early-stage breast cancers.Methods:Pub Med,EMBASE,Cochrane Library,Chinese Biomedical Literature Database were searched to identify relevant original published trails,and the references of eligible studies were manually screened.Randomized controlled trails reported in any language,comparing breast IMRT with conventional radiotherapy (RT) in patients with early-stage breast cancer were eligible for inclusion.Two investigators independently assessed the quality of included trials and extracted data.The RevMan 5.0 software was used for statistical analysis.Results:Four trials involving 1440 patients were included.The results showed that in the IMRT group,the occurrence of acute moist dermatitis,the edema of the mammary gland and the occurrence of hyperpigmentation were lower than those of RT group,the pooled risk ratio value and 95% confidence interval were 0.28 (0.17-0.48),0.03 (0.00-0.21) and 0.06 (0.02-0.15) respectively.The use of IMRT did not correlate with pain and quality of life,but the presence of moist desquamation did significantly correlate with pain and reduced quality of life.Conclusion:The currently available evidence showed that IMRT significantly reduces the occurrence of moist acute dermatitis anywhere in the breast and alleviates the suffering of patients and improves the quality of life of patients.Future large-scale,high-quality,double-blind trials are needed. | Xiupeng Ye Ling Su Xiaohu Wang Kehu Yang inhui Tian Qiuning Zhang Qiang Wang Xiaojun Li Yuqing Kang Liyun Guo Ruifeng Liu Shifang Feng | 2010 | The Chinese-German Journal of Clinical Oncology2010,9,12: | 2 |
| 3 | Hepatitis E virus genotype 4 isolated from a patient with liver failure: full-length sequence analysis showing potential determinants of virus pathogenesis显示文摘 | Qiuning Bu Xiaojuan Wang Ling Wang Peng Liu Jiabao Geng Maorong Wang Jian Han Yonghong Zhu Hui Zhuang | 2013 | Archives of Virology2013,,1: | 1 |
| 4 | Analysing complete genome sequence of swine hepatitis E virus (HEV), strain CHN-XJ-SW13 isolated from Xinjiang, China: Putative host range, and disease severity determinants in HEV显示文摘 | Hongwei Fu Ling Wang Yonghong Zhu Jiabao Geng Lingjun Li Xiaojuan Wang Qiuning Bu Hui Zhuang | 2011 | Infection Genetics and Evolution2011,,3: | 1 |
| 5 | Enhanced photocatalytic degradation and H_(2) evolution performance of N-CDs/S-C_(3)N_(4)S-scheme heterojunction constructed byπ-πconjugate self-assembly显示文摘Constructing heterojunction between two semiconductors with matched energy band structure is an effective modification method to obtain excellent photocatalysts.The experimental scheme adopts a simple solvent method to self-assemble nitrogen doped carbon dots(N-CDs)on the surface of sulfur doped carbon nitride(S-C_(3)N_(4))semiconductor throughπ-πconjugate interaction.Based on this,a novel 0D/2D S-scheme heterojunction N-CDs/S-C_(3)N_(4)hybrid was successfully prepared.The degradation kinetic constants of N-CDs/S-C_(3)N_(4)for rhodamine B(RhB)and p-nitrophenol(PNP)reached 0.23522 and 0.01342 min^(−1),repectively,which were 2.72 and 2.65 times that of S-C_(3)N_(4).The highest photocatalytic hydrogen evolution rate was observed under the simulated sunlight irradiation,which was 2.30 times that of S-C_(3)N_(4).The improvement of photocatalytic performance was mainly based on the formation of the S-scheme heterojunction between S-C_(3)N_(4)and N-CDs.The effects of internal electric field,π-πconjugate interaction and band bending promoted the photogenerated h^(+)and e^(−) with low redox ability to recombine and retained the beneficial h+and e−with strong redox ability,which contributed to the production of more active species of h^(+) and•O_(2)−,therefore the photocatalytic degradation and hydrogen evolution performance were significantly enhanced. | Xibao Li Qiuning Luo Lu Han Fang Deng Ya Yang Fan Dong | 2022 | Journal of Materials Science & Technology2022,,19: | 1 |
| 6 | Assessment of glomerularcharge selectivity in man by defferential clearance of isoamylas e显示文摘 | Fox JG Qiun JD O ReillyD | 1993 | Clin Sci1993,84,: | 1 |
| 7 | Opportunity-based topology control in wireless sensor networks显示文摘 | Liu Yun-huai Zhang Qiun and Ni L M | 2010 | IEEE Transactions on Parallel and Distributed Systems2010,21,3: | 1 |
| 8 | CNI-1443 attenuates hemodynamic and pro-inflammatory responses to LPS显示文摘 | Molina PE Qiun L Schuhlein D | 1998 | Shock1998,10,: | 1 |
| 9 | Target-Activated coumarin phototriggers specifically switch on fluorescence and photocleavage upon bonding to thiol-bearing protein 显示文摘 | Qiuning Lin Chunyan Bao | 2012 | J Am Chem Soc2012,134,11: | 1 |
| 10 | Regulation of intracellular Cl-concentration through volume-regulated ClC-3 chloride channels in A10 vascular smooth muscle cells显示文摘 | Zhou JG Ren JL Qiun QY He H Guan YY | 2005 | J Boil Chem2005,280,8: | 1 |
| 11 | Regulation of intracellular Cl-concentration through volume-regulated ClC-3 chloride channels in Al0 vascular smooth muscle cells显示文摘 | Zhou J G Ren J L Qiun Q Y | 2005 | J Boil Chem2005,280,8: | 1 |
| 12 | Merkel cell carcinoma of the earlobe in a diabetes mellitus patient显示文摘 | Li Yun Qu Tao Sun Qiuning Mao Xuming Fang Kai | 2014 | Chinese Medical Journal2014,,8: | 0 |
| 13 | Salient object detection with side information显示文摘Dear editor,Saliency detection has recently attracted much attention owing to its applicability in several fields of computer vision and machine learning.Convolutional neural network(CNN)is especially successful in generating saliency map end-to-end in salient object detection.These methods can be grouped into two categories:(1)improving the structure of the networks,and(2)training the networks’parameters better than before. | Qiuning LI Yidong LI Congyan LANG | 2020 | Science China(Information Sciences)2020,63,8: | 0 |
| 14 | 3 - 64 Progress of Tumor Radiotherapy with Carbon Ions at Heavy Ion Research Facility in Lanzhou (HIRFL) of IMP显示文摘 | Zhang Hong Li Sha Wang Xiaohu Li Qiang Wei Shihua Gao Liying Zhao Weiping Hu Zhengguo Mao Ruishi Xu Hushan Yue Yangjun Zhang Qiuning Ran Juntao Tian Zhongze Xiao Guoqing Zhan Wenlong | 2010 | IMP & HIRFL Annual Report2010,,1: | 0 |
| 15 | CASE STUDY TO ASSESS IMPLICATIONS OF INTERLANGUAGETHEORY IN PRACTICAL APPLICATION TO A CHINESE SETTING显示文摘In the light of the lnterlanguage theory, errors are nolonger seen as“unwanted forms”, but as evidence of learners active contribution to second language acquisition. The focus ofthis paper is the interlanguage of learners at Belting Institute ofTechnology (BIT) and the learner strategies employed asindicated in their interlanguage. Studying of these strategies mayenrich our understanding of the nature of learners' interlanguageand explore perspectives of English in a more efficient way. | LǖQiuning | 2004 | 中国英语教学:英文版2004,27,1: | 0 |
| 16 | Enhancing hydrophobicity via core-shell metal organic frameworks for high-humidity flue gas CO_(2) capture显示文摘Developing metal-organic framework(MOF)materials with the moisture-resistant feature is highly desirable for CO_(2)capture from highly humid flue gas.In this work,a new core-shell MOF@MOF composite using Mg-MOF-74 with high CO_(2)capture capacity as a functional core and hydrophobic zeolitic imidazolate framework-8(ZIF-8)as a protective shell is fabricated by the epitaxial growth method.Experimental results show that the CO_(2)adsorption performance of the core-shell structured Mg-MOF-74@ZIF-8 composites from water-containing flue gas is enhanced along with their improved hydrophobicity.The dynamic breakthrough results show that the Mg-MOF-74@ZIF-8 with three assembled layers(Mg-MOF-74@ZIF-8-3)can capture 3.56 mmol-g^(-1)CO_(2)from wet CO_(2)/N_(2)(VCO_(2):V_(N_(2))=15:85)mixtures,which outperforms Mg-MOF-74(0.37 mmol·g^(-1))and most of the reported physisorbents. | Yinji Wan Dekai Kong Feng Xiong Tianjie Qiu Song Gao Qiuning Zhang Yefan Miao Mulin Qin Shengqiang Wu Yonggang Wang Ruiqin Zhong Ruqiang Zou | 2023 | Chinese Journal of Chemical Engineering2023,61,9: | 0 |
| 17 | Nanomaterial Assisted Exosome Analysis Using Mass Spectrometry显示文摘Exosomes,extracellular vesicles(EVs)that play crucial roles in biological processes,have emerged as attractive targets for noninvasive disease diagnosis and monitoring.Mass spectrometry(MS)offers high sensitivity,high throughput,and excellent qualification and quantification capacity,which is the ideal approach for exosome analysis.Nanomaterials’unique physiochemical properties,controllable morphology,and large surface area make them promising in biological sample pretreatment and detection.They contributed diverse functions to the exosome MS analysis,encompassing substrates for exosome isolation and cargos enrichment,matrices for laser desorption/ionization(LDI),read-out signals and supporters for signal amplification strategies,etc.In this review,recent progress in the applications of nanomaterial in the exosome MS analysis was summarized and a comprehensive discussion on the challenges and perspectives was proposed for the development of an advancing analysis approach of exosomes for the accurate diagnosis and monitoring of diseases. | ZHANG Yi ZHOU Bokai LI Qiuning JIN Mingshi BAI Yu | 2024 | Chemical Research in Chinese Universities2024,40,2: | 0 |