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| 1 | Establishment of a new tropospheric delay correction model over China area显示文摘The tropospheric delay is one of the main error sources for radio navigation technologies and other ground-or space-based earth observation systems. In this paper, the spatial and temporal variations of the zenith tropospheric delay (ZTD), especially their dependence on altitude over China region, are analyzed using ECMWF (European Centre for Medium-Range Weather Forecast) pressure-level atmospheric data in 2004 and the ZTD series in 1999-2007 measured at 28 GPS stations from the Crustal Movement Observation Network of China (CMONC). A new tropospheric delay correction model (SHAO) is derived and a regional realization of this model for China region named SHAO-C is established. In SHAO-C model, ZTD is modeled directly by a cosine function together with an initial value and an amplitude at a reference height in each grid, and the variation of ZTD along altitude is fitted with a second-order polynomial. The coefficients of SHAO-C are generated using the meteorology data in China area and given at two degree latitude and longitude interval, featuring regional characteristics in order to facilitate a wide range of navigation and other surveying applications in and around China. Compared with the EGNOS (European Geostationary Navigation Overlay Service) model, which has been used globally and recommended by the European Union Wide Area Augmentation System, the ZTD prediction (in form of spatial and temporal projection) accuracy of the SHAO-C model is significantly improved over China region, especially at stations of higher altitudes. The reasons for the improvement are: (1) the reference altitude of SHAO-C parameters are given at the average height of each grid, and (2) more detailed description of complicated terrain variations in China is incorporated in the model. Therefore, the accumulated error at higher altitude can be reduced considerably. In contrast, the ZTD has to be calculated from the mean sea level with EGNOS and other models. Compared with the direct estimation of ZTD from the 28 GPS stations, the accuracy of the derived ZTD using the SHAO-C model can be improved by 60.5% averagely compared with the EGNOS model. The overall bias and rms are 2.0 and 4.5 cm, respectively, which should be sufficient to satisfy the requirements of most GNSS navigation or positioning applications in terms of the tropospheric delay correction. | SONG ShuLi ZHU WenYao CHEN QinMing LIOU YueiAn | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,12: | 24 |
| 2 | Changes of number of cells expressing proliferation and progenitor cell markers with age in rabbit intervertebral discs显示文摘在 intervertebral 磁盘(IVD ) 以内的正常新生进程的基本知识对内在的生物学的理解重要。在 IVD 的祖先和干细胞的存在被验证了。然而,有年龄的祖先和干细胞的数字的变化仍然是未知的。在这研究,房间增长和祖先房间变化有在从二不同年龄的兔子的 IVD 房间的年龄的标记用流动 cytometry, immunohistochemistry,即时聚合酶链反应,和西方的污点分析被调查。原子抗原(PCNA ) 为增长被选择为一个标记的增殖的房间,和 Notch1, Jagged1, C 工具包, CD166 被选择为干细胞标记。房间周期分析证明在小兔子的 G2/M 阶段的那个房间数字比成熟兔子的显著地高。染色的 Immunohistochemical 在年轻、成熟的体环 fibrosus (AF ) 表明了 PCNA, C 工具包, CD166, Notch1,和 Jagged1 的表示。在小兔子的这些房间标记的蛋白质表情都比在成熟兔子的那些显著地高。PCNA 的表示层次, CD166, C 工具包, Jagged1 在 AF,和 PCNA 是显著地更高的,在从小兔子的原子核 pulposus 的 C 工具包比那些从成熟兔子。这些调查结果证明增长和祖先房间在兔子 IVD 和在兔子 IVD 房间与年龄表示增长和祖先房间标记减少的房间的数字存在。被设计维持内长的祖先房间并且刺激他们的增长的方法能在阻止或禁止退化圆盘疾病是成功的。 | Miersalijiang Yascn Qinming Fei JianZhang WilliamCHutton JianDong XiaoxingJiang FengZhang | 2013 | Acta Biochimica et Biophysica Sinica2013,45,5: | 14 |
| 3 | Osteogenic growth peptide enhances the proliferation of bone marrow mesenchymal stem cells from osteoprotegerin-deficient mice by CDK2/cyclin A显示文摘支持骨头形成是在骨质疏松症治疗的基本策略之一,破裂修理。作为骨头形成上的激发器之一, osteogenic 生长肽(OGP ) 在 vitro 并且在 vivo, osteoprotegerin (OPG ) 在被建议了被包含增加造骨细胞的增长和区别。在这研究,我们在骨头髓上评估了 OGP 的效果从在由 3-(4,5-dimethylthiazol-2-yl ) 的 vitro 的 OPG 缺乏的老鼠的间充质的干细胞(MSC )-2,5-diphenyltetrazolium 溴化物试金,碱的磷酸酶(高山) 活动试金,即时聚合酶链反应,和西方的污点分析。结果证明 OGP 刺激了 MSC 增长并且在 mRNA 和蛋白质层次两个都在 MSC 增加了 CDK2 和 cyclin A 的表示。然而, OGP 的 differentiative 效果都没作为高山活动和 Runx2 的表示层次被显示出, Osterix 没被 OGP 显著地增加。我们的学习建议 OGP 可以由刺激 MSC 增长而非区别在 OPG 缺乏的老鼠增加骨头形成,并且可能由触发 CDK2/cyclin 一条小径。 | Qinming Fei Changjun Guo Xiaoya Xu Jianjun Gao Jian Zhang Tongyi Chen Dafu Cui | 2010 | Acta Biochimica et Biophysica Sinica2010,42,11: | 11 |
| 4 | Isolation and identification of stem cells from degenerated human intervertebral discs and their migration characteristics显示文摘间充质的干细胞(MSC ) 从 intervertebral 圆盘的三个部件独立被孤立并且识别,即体环 fibrosus (AF ) ,原子核 pulposus (NP ) ,和软骨终板(CEP ) 。然而,很少研究被执行了比较这些三种干细胞的性质,他们为他们的潜在的临床的应用程序必要的特别移植能力。在这研究,分别地, MSC 人的堕落磁盘从 AF, NP,和 CEP 被孤立并且在经过 3 点由表面标记和 multilineage 区别试金识别了。干细胞的这三种类型作为 AF-MSCs, NP-MSCs,和 CEP-MSCs 被说出。然后,他们的生物特征以增长,经过,殖民地形成,移植,和侵略能力被比较。结果证明房间的所有三种类型作为 MSC 被识别并且在增长,经过,和殖民地形成能力有类似的特征。当 NP-MSCs 显示出最低迁居能力时, CEP-MSCs 显示出最高的迁居和侵略力量,建议那 CEP-MSCs 并且几乎,没有侵略力量有移植和侵略的最强大的性质什么时候与 AF-MSCs 和 NP-MSCs 相比。比的, CXCR4 的表示才在 CEP-MSCs 是更高的在。 | Shuhao Liu Haifeng Liang Soo-min Lee Zheng Li Jian Zhang Qinming Fei | 2017 | Acta Biochimica et Biophysica Sinica2017,49,2: | 10 |
| 5 | 断层相关裂隙的一种定量计算方法显示文摘利用平衡剖面及几何学原理,建立断层面脱空空间理论模型、断层破裂带裂隙空间的置换模型,推导出一个在2维剖面上计算断层相关裂隙空间的定量计算公式,并讨论了相关参数的地质含义及取值方法。结果表明,断层面与层面的夹角变化率是控制断层相关裂隙空间的主控因素。该计算方法为断层裂缝的预测及评价提供了一种全新的思路和方法。 | 徐国强 刘树根 YANG Qinming 李国蓉 | 2006 | 地质学报2006,80,2: | 9 |
| 6 | Truncated Human LMP-1 Triggers Differentiation of C2C12 Cells to an Osteoblastic Phenotype in vitro显示文摘秘鲁利玛机场之代号矿化作用 protein-1 (LMP-1 ) 是被显示了在 vitro 并且在 vivo.LMP-1 导致骨头形成的新奇细胞内部的 osteoinductiveprotein 包含 anN 终端 PDZ 领域和三个 C 终端秘鲁利玛机场之代号领域。在这研究,我们调查了是否人的 LMP-1 的一种截断的形式( hLMP-l [ t ]),缺乏三个C终端秘鲁利玛机场之代号领域, weretransiently 触发 pluripotent myoblastic C2C12 房间的区别到造骨细胞 lineage.C2C12 房间有 Ad5-hLMP-l (t)绿色的 transduced 荧光灯的蛋白质和截断的蛋白质被检验。结果证明 thathLMP-l (t) 在 C2C12 文化堵住了 myotube 形成并且显著地提高了碱性磷酸酶(高山) 活动。另外,形态基因的蛋白质(BMP )-2 和 BMP-7 基因也是的高山, osteocalcin,和骨头的表情增加了。这些关键 osteogenic 标记的正式就职建议 hLMP-l (t)能触发 pluripotent myoblastic C2C12 房间区分 intoosteoblastic 系,因此扩大我们 LMP-1 和 LMP-1 (t)提高的以前的观察在房间的文化的 theosteoblastic 显型已经承诺了 osteoblasticlineage.Therefore , C2C12 房间是为 osteoblastic 显型和 LMP-1 行动的机制的学习感应的 LMP-1 的考试的一个适当模型系统。 | Qinming FEI | 2007 | Acta Biochimica et Biophysica Sinica2007,39,9: | 8 |
| 7 | Solvent-free synthesis of zeolite catalysts显示文摘The most used method for preparation of zeolites is hydrothermal synthesis from silicate or aluminosilicate gels at temperatures in the range of 60–200°C.Excess water used in the industrial process results in several issues,including high autogeneous pressure,low efficiency,pollution,etc.To solve these problems,several strategies have been developed.This review describes the solvent-free synthesis of zeolites.The combination of solvent-free synthesis and organotemplate-free synthesis can open the pathway to a highly sustainable zeolite synthesis protocol in industry. | Xiangju Meng Qinming Wu Fang Chen Feng-Shou Xiao | 2015 | Science China Chemistry2015,58,1: | 5 |
| 8 | Sustainable Synthesis of Core-Shell Structured ZSM-5@Silicalite-1 Zeolite显示文摘Core-shell structured ZSM-5@Silicalite-1 zeolite could effectively hinder the deactivation of catalyst surface. Currently, organic structure directing agents(OSDAs) are necessary in the conventional route for the synthesis of this core-shell zeolite under hydrothermal conditions, which is costly and environmental-unfriendly. In this research, a synthesis of the core-shell structured ZSM-5@Silicalite-1 zeolite with a strategy of alcohol filling and zeolite seeding without any organic template or solvent is exhibited. The obtained products are well characterized by X-ray powder diffractometer(XRD), scanning electron microscopy(SEM), transmission electron microscopy(TEM), N2 sorption isotherms, solid magic angle spinning(MAS) NMR, temperature-programmed-desorption of ammonia(NH3-TPD), and X-ray photoelectron spectroscopy(XPS) techniques, in order to confirm the core-shell structure. More importantly, the core-shell structured ZSM-5@Silicalite-1 zeolite exhibits a long lifetime and a high p-xylene selectivity in the alkylation of toluene with methanol, compared with the conventional ZSM-5 catalyst. | LUAN Huimin WU Qinming ZHANG Jian WANG Yeqing MENG Xiangju XIAO Feng-Shou | 2022 | Chemical Research in Chinese Universities2022,38,1: | 3 |
| 9 | Theoretical design for zeolite synthesis显示文摘Zeolites,an important class of microporous crystals,have been widely utilized in the fields of catalysis,ion-exchange,separation,and sorption for a long time.In general,zeolites are synthesized in the presence of costly organic templates under hydrothermal conditions by trial-and-error method,which is not only environmentally unfriendly but also labor-intensive.In recent years,novel concepts of design for zeolite synthesis,which are sustainable,cheap,simple,and efficient,have been developed.In this review,the recent advances in design for zeolite synthesis will be briefly summarized,mainly including the design of organic templates for directing the formation of zeolites,design of organotemplate-free route for zeolite synthesis,design of solvent-free strategy for zeolite synthesis,design for novel interzeolite transformation,and targeted control of zeolite morphologies.This review might be helpful for developing sustainable routes for targeted synthesis of zeolites in the future. | Qinming Wu Huimin Luan Feng-Shou Xiao | 2022 | Science China Chemistry2022,65,9: | 1 |
| 10 | Chemotaxonomicstudyonsomestrainsofnocardioform-acti-nomycetes显示文摘 | LiuZH(刘志恒) QinM(秦敏) MaJC(马俊才) etal | | 微生物学报0,,: | 1 |
| 11 | A Multiple hyper-ellipsoidal subclass model for an evlou-tionary classifier显示文摘 | QINMING ZHU YAO CAI LUZHEN LIU | 2001 | Pattern Recognition2001,34,: | 1 |
| 12 | Research on Ideological and Political Education Psychological Counseling and Its Efficiency Improvement under the Network Background显示文摘Ideological and political education psychological counseling is facing problems.Therefore,it is necessary to help the party workers to learn and master the knowledge a—bout psychological service,improve the ability of party workers to participate in psychological counseling,strengthen the cultivation of the good political attitude of netizens and enhance the psychological service mechanism for the ideological and political works in order to further improve the efficiency of the psychological counseling of China's current ideological and political education. | Wang Ying Yu Qinming | 2016 | 学术界2016,,5: | 1 |
| 13 | Microcontact Printing Techniques in Bioscience显示文摘The microcontact printing(μCP) technology available for patterning protein, DNA hybridization, immunoassay and cellular cocultures onto solid surface are reviewed. This review describes some of the techniques currently employed for creating two-dimensional biomolecular microarray, and the research results regarding their effectiveness. In addition, the applications of the impact of μCP technology in the field of biosciences are also presented. | FENGXi-zeng HOUSun CHANQi-lin WANGLi-kai QINMing HANPei-dong | 2004 | Chemical Research in Chinese Universities2004,20,6: | 1 |
| 14 | Organosilane surfactant-assisted synthesis of mesoporous SSZ-39 zeolite with enhanced catalytic performance in the methanol-to-olefins reaction显示文摘SSZ-39 zeolite with AEI framework structure is a good catalyst candidate for the methanol-to-olefins(MTO)reaction.However,the diffusion limitation and coke formation often results in fast deactivation of the SSZ-39 zeolite catalyst.One solution for this challenge is to introduce mesoporosity in the SSZ-39 zeolite.Herein,we report the synthesis of mesoporous SSZ-39 zeolite using an organosilane surfactant,,-dimethyl--(3-(trimethoxysilyl)propyl)octan-1-aminium chloride,as a mesopore template and,-dimethyl--2,6-dimethylpiperidinium as a micropore template.The obtained zeolites were characterized by X-ray diffraction,N sorption,scanning electron microscopy,temperature programmed desorption of ammonia,and magic angle spinning nuclear magnetic resonance of Al.The results show that the mesoporous SSZ-39 zeolite has high crystallinity,meso/microporosity,high surface area,cuboid morphology,and abundant acidic sites.More importantly,this mesoporous SSZ-39 zeolite exhibits enhanced catalyst lifetime in the MTO reaction due to the presence of mesoporosity for fast mass transfer,compared with a conventional SSZ-39 zeolite without mesoporosity. | Hao Xu Chi Lei Qinming Wu Qiuyan Zhu Xiangju Meng Daniel Dai Stefan Maurer Andrei-Nicolae Parvulescu Ulrich Muller Fengshou Xiao | 2020 | Frontiers of Chemical Science and Engineering2020,14,2: | 1 |
| 15 | Mining Spatio- Temporal Co-location Patterns with Weighted Sliding Window显示文摘 | Qian Feng Yin Liang He Qinming | 2009 | IEEE2009,,: | 1 |
| 16 | Insights into the Organotemplate-Free Synthesis of Zeolite Catalysts显示文摘 | Yeqing Wang Qinming Wu Xiangju Meng Feng-Shou Xiao | 2017 | Engineering2017,3,4: | 1 |
| 17 | As sessment of ZTD Derived from ECMWF/NCEP Da ta over China显示文摘 | Chen Qinming Song Shuli Stefan H | 2011 | GPS Solutions2011,15,4: | 1 |
| 18 | Succinoylationofsugarcanebagasseunderultrasoundirradiation 显示文摘 | LiuCF SunRC QinM H etal | 2008 | BioresourceTechnology2008,99,5: | 1 |
| 19 | TendonhealingandantiGadheGsionpropertiesofelectrospunfibrousmembranescontaiGningbFGFloadednanoparticles显示文摘 | LiuS QinM HuC etal | 2013 | Biomaterials2013,34,19: | 1 |
| 20 | Determination of nighttime VTEC average in the Klobuchar ionospheric delay model显示文摘The Klobuchar model has been widely used to correct the ionospheric delay in applications. However, the NVTEC(Nighttime Vertical Total Electron Content) of the Klobuchar model employs an empirical constant of 9 TECU(Total Electron Content Unit) at L1 frequency. In this paper, the rationality and reliability of the nighttime constant setting are investigated using the GIM(Global Ionosphere Map) product of the IGS(International GNSS Service) from 1998 to 2015. Our study indicates that the suitable time span of NVTEC average in nighttime should be between 20:00 and 06:00 LT(local time). The NVTEC is highly correlated with seasons, having positive extremes in spring and autumn and negative extremes in summer through the mean values in all latitudes. In addition to seasonal dependence, solar activity in the solar cycle 23 strongly influences NVTEC as well and leads to its variation within a range between 25 and30 TECU in spring and autumn at solar maximum, which is about 1.5 times greater than that in summer and winter. The NVTEC also has a dependence on the latitude at solar maximum, with the mean value from 30 TECU in low latitudinal regions to 15 TECU in high latitudinal regions. Therefore, these results demonstrate that the nighttime VTEC has much greater deviations from the imperial constant in the Klobuchar model, and the newly estimated constant is expected to bring improvement to the predictability of the Klobuchar ionospheric delay model in nighttime. | Weili Zhou Shuli Song Qinming Chen Na Cheng Hui Xie | 2018 | Geodesy and Geodynamics2018,9,2: | 1 |