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777篇 您的检索式:作者名="Chen Xh"
    题名 作者 年代 出处 被引量
1Geochemistry and petrogenesis of Jurassic high Sr/low Y granitoids in eastern China: Constrains on crustal thickness显示文摘The Jurassic high Sr/low Y granitoids in eastern China are characterized by high Sr/Y (27-166) and La/Yb (14-66) ratios, low abundance in Y (6-21μg/g) and Yb (0.5-2.0μg/g), comparable with those of adakites defined by Defant et al. Thus, they were recently considered as adakitic rocks by some researchers. Compared with the typical adakites in circum-Pacific margins, however, these high Sr/low Y granitoids have higher K2O (-3.5%) but lower A12O3 (-16.0%) as well as lower Mg#(-38) and δSrN (-1.23) values. Furthermore, they show relatively flat HREE patterns with Y/Yb values of -10 close to the chondritic value. These geochemical characteristics indicate a residue mineral assemblage of hornblende, garnet and plagioclase for these high Sr/low Y granitoids melt. Thus, they were generated by partial melting at 9-13 kbar (30-45 km in depth), similar to the Archaean high-Al TTG rather than the modern adakites. Generation of these high Sr/low Y granitoids cannot be considered as evidence for a thickenedGe, XY Li, XH Chen, ZG Li, WP 2002Chinese Science Bulletin2002,47,11:51
2Dietary factors and smoking as risk factors for PD in a rural population in China: a nested case-control study显示文摘Ma L Zhang L Gao XH Chen W Wu YP Wang Y Li XF Como P Kieburtz K Qiao YL 2006中国生物学文摘2006,20,8:13
3渭河河漫滩沉积物渗透性研究显示文摘利用竖管法现场测量渭河高漫滩沉积物的水平渗透系数和河漫滩饱和带沉积物的垂向渗透系数,分别测定了高漫滩5个层位和河漫滩饱和带78个点的渗透系数,分析了渗透系数在层内的变化以及在各层之间的差别。应用Matlab软件检验实验数据的统计分布规律并应用地质统计原理计算渗透系数的变异函数。分析得出高漫滩中单一沉积层中测得的渗透系数属于正态分布,河漫滩饱和带单一沉积层的渗透系数呈对数正态分布。根据实验,分析得出渗透系数与洪水水动力条件相关。洪水水动力条件大的情况下,沉积物以中砂、粗砂为主,沉积物有较大的渗透系数;当洪水水动力条件较小时,沉积物以细砂、粉砂沉积为主,其渗透系数也较小。米海存 Chen XH 何红曼 刘睿翀 高敏 2014水文地质工程地质2014,41,4:5
4慢性HBV感染母亲所分娩婴儿增加乙型肝炎疫苗剂量的母婴阻断效果及免疫应答情况:一项前瞻性、多中心、大样本队列研究显示文摘【据BMC Medicine 2021年7月报道】题:慢性HBV感染母亲所分娩婴儿增加乙型肝炎疫苗剂量的母婴阻断效果及免疫应答情况:一项前瞻性、多中心、大样本队列研究(作者Zhang XH等)母婴传播是我国HBV最主要的传播途径之一,接种乙型肝炎疫苗是阻断HBV母婴传播和预防婴儿感染HBV的主要策略,婴儿联合注射乙型肝炎免疫球蛋白可进一步提高免疫效果。然而,即使出生后及时完成了乙型肝炎疫苗联合免疫球蛋白的主被动联合免疫,仍有约5%婴儿发生阻断失败,还有部分婴儿会表现为无(低)应答。既往研究发现乙型肝炎疫苗的剂量是影响阻断效果的主要因素之一(10μg重组酵母乙型肝炎疫苗的阻断效果显著优于5μg重组酵母乙型肝炎疫苗)。基于此,来自首都医科大学附属北京佑安医院人工肝治疗中心的Zhang等进行了首个前瞻性、多中心、大样本的队列研究,探讨增加婴儿接种乙型肝炎疫苗的剂量,是否影响乙型肝炎母婴阻断效果、免疫应答水平及疫苗的安全性。ZHANG XH ZOU HB CHEN Y 段钟平 2021临床肝胆病杂志2021,37,10:4
5Static Adsorption of Xenon on ACF at 257 K显示文摘The static adsorption of xenon on active carbon fiber (ACF) at 257 K was measured with ASAP2010 specific surface area and pore diameter distribution instrument by changing the working gas from nitrogen to xenon. Compared with grain activated carbon (GAC), the results were as follows: (1) The adsorption performance of Viscose-based ACF (VACF-As) was the best among all absorbents tested. VACF-A3 was the superior xenon absorbent. The performance of pitch-based ACF (PACF-Cs) approached that of GAC, (2) Due to the difference of aperture distribution, the adsorption performances of ACF with different radics were different under the same experiment conditions even though the specific surface area was similar, (3) There were some differences of adsorptive capacity among ACF absorbents which had the same radic, however there was not definite relationship between their specific surface area and adsorptive capacity, (4) The adsorption of xenon on all kinds of ACF agrees with Langmuir equation, (5) The adsorptive curves can be fitted with a binomial equation.Zhang, HT Wang, YL Wang, XH Zhang, LX Chen, LY 2002Journal of Materials Science & Technology2002,18,6:3
6Acceleration of the healing process and myocardial regeneration may be important as a mechanism of improvement of cardiac function and remodeling by postinfarction granulocyte colony-stimulating factor treatment显示文摘 Takemura G Chen XH 2004Circulation2004,109,21:1
7Research advances on the pharmacological effects of tetrandrine 显示文摘Cai XH Wang S Chen BA 2011Chin J Nat Med2011,9,:1
8Expression of CD4+CD25+regulatory T cells and Foxp3 in peripheral blood of patients with gastric carcinoma显示文摘Chen SL Cai SR Zhang XH 2016J Biol Regul Homeost Agents2016,30,1:1
9Rapid detection of hepati- tis B virus surface antigen by an agglutination assay mediated by a bispecific diabody against both human erythrocytes and hepatitis B virus surface antigen 显示文摘Chen YP Qiao YY Zhao XH 2007Clin Vaccine Immunol2007,14,6:1
10Epithelial injury induces egr-1 and fos expression by a pathway involving protein kinase C and ERK显示文摘 Chen XH 1999J Neurotrauma1999,16,11:1
11The anti -cancer compound Nordy inhibits CXCR4-mediated production of IL-8 and VEGF by malignant human glioma cells显示文摘Ping YF Yao XH Chen JH 2007J Neurooncol2007,84,1:1
12Glioblastoma stem cells produce vascular endothelial growth factor by activation of a C-protein coupled forrnylpeptide receptor FPR显示文摘Yao XH Ping YF Chen JH 2008J Pathol2008,215,4:1
13Correlation of Coronary Angiography with 'Tombstoning' Electrocardiographic Pattern in Patients after Acute Myocardial Infarction显示文摘Guo XH Yap YG Chen LJ 2000Clin Cardiol2000,23,5:1
14Sirtl promotes axonogenesis by deacetylation of akt and inactivation of GSK3 显示文摘Li XH Chen C Tu Y 2013Mol Neurobi- ol2013,48,3:1
15Sonic hedgehog signaling pathway induces cell migration and invasion through focal adhesion kinase/AKT signaling-mediated activation of matrix metalloproteinase (MMP)-2 and MMP-9 in ]iver cancer显示文摘Chen JS Huang XH Wang Q 2013Carcinogenesis2013,34,1:1
16Serum N-terminal probrain natriuretic peptide level is a significant prognostic factor in patients with severe sepsis among Southwest Chinese population显示文摘Zhang XH Dong Y Chen YD 2013Eur Rev Med Pharmacol Sci2013,17,4:1
17Sonic hedgehog signaling pathway induces cell migration and invasion through focal adhesion kinase/AKT signaling-mediated activation of matrix metalloproteinase (MMP)-2 and MMP-9 in liver cancer显示文摘Chen JS Huang XH Wang Q 2013Carcinogenesis2013,34,:1
18Mercury in urban soils with various types of land use in Beijing,China显示文摘Chen X Xia XH Wu S 0,,:1
19Sonic hedgehog enhances the proliferation and osteogenie differentiation of bone marrow-derived mesenchymal stem cells显示文摘Cai JQ Huang YZ Chen XH 2012Cell Biol Int2012,36,4:1
20Systematic qualitative and quantitative assessment of fatty acids in the seeds of 60 tree peony(Paeonia section Moutan)cultivars by GC-MS显示文摘Li SS Yuan RY Chen LG Wang LS Hao XH Wang LJ Zheng XC Du H 2015Food Chem2015,173,15:1
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