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| 1 | 石笋记录的东亚季风气候H_1事件突变性特征显示文摘据TIMS-U系测年和年纹层计数,建立了南京汤山葫芦洞一支石笋年际分辨率时间标尺(纹层计数年17451~14417aBP).石笋高分辨率氧同位素曲线揭示末次盛冰期东亚季风气候十年至百年尺度高频气温振荡特征,从中识别出响应于北大西洋最后一个Heinrich(H1)事件的特强寒冷事件.该事件开始于16140±100aBP,并在此后36年内降温7~8℃.研究表明,事件所呈现的突发性降温形式以及跌宕式回暖过程(事件内部有10个冷暖旋回,并持续793a)主要受北半球中纬地区日辐照能背景、北大西洋冰漂碎屑带的扩张以及低纬太平洋海表温度变化诸因素的控制. | 汪永进 刘殿兵 吴金全 吴江滢 汪永进 蔡演军 H.Cheng | 2002 | 中国科学(D辑)2002,32,3: | 34 |
| 2 | The dimension split element-free Galerkin method for three-dimensional potential problems显示文摘This paper presents the dimension split element-free Galerkin(DSEFG) method for three-dimensional potential problems, and the corresponding formulae are obtained. The main idea of the DSEFG method is that a three-dimensional potential problem can be transformed into a series of two-dimensional problems. For these two-dimensional problems, the improved moving least-squares(IMLS) approximation is applied to construct the shape function, which uses an orthogonal function system with a weight function as the basis functions. The Galerkin weak form is applied to obtain a discretized system equation,and the penalty method is employed to impose the essential boundary condition. The finite difference method is selected in the splitting direction. For the purposes of demonstration, some selected numerical examples are solved using the DSEFG method. The convergence study and error analysis of the DSEFG method are presented. The numerical examples show that the DSEFG method has greater computational precision and computational efficiency than the IEFG method. | Z.J.Meng H.Cheng L.D.Ma Y.M.Cheng | 2018 | Acta Mechanica Sinica2018,34,3: | 2 |
| 3 | Quantitative trait loci associated with soybean tolerance to low phosphorus stress based on flower and pod abscission显示文摘 | D.Zhang C.Liu H.Cheng G.Kan S.Cui Q.Meng J.Gai D.Yu | 2010 | Plant Breeding2010,,3: | 1 |
| 4 | 查看详情显示文摘 | Chen J.Q Shao Y.F Yang Z Yang H.Cheng R.S | | 0,,6: | 1 |
| 5 | Interpretive OpenGL for Com-puter Graphics显示文摘 | BO CHEN HARRY H.Cheng | | 0,,: | 1 |
| 6 | A method of measuring user influence in Microblog显示文摘 | Y.-C.Zhang Y.Liu H.Cheng F.Xiong C.-L.Zhang | | 0,,10: | 1 |
| 7 | Waning‐off effect of serum hepatitis B surface antibody amongst Taiwanese university students: 18?years post‐implementation of Taiwan’s national hepatitis B vaccination programme显示文摘 | F.‐H.Su J.‐D.Chen S.‐H.Cheng K.‐Y.Sung J.‐J.Jeng F.‐Y.Chu | 2007 | Journal of Viral Hepatitis2007,,1: | 1 |
| 8 | Quantitative trait loci associated with soybean tolerance to low phosphorus stress based on flower and pod abscission显示文摘 | D.Zhang C.Liu H.Cheng G.Kan S.Cui Q.Meng J.Gai D.Yu | 2010 | Plant Breeding2010,,3: | 1 |
| 9 | Genetic assessment of inbred chicken lines indicates genomic signatures of resistance to Marek's disease显示文摘Background: Marek's disease(MD) is a highly contagious pathogenic and oncogenic disease primarily affecting chickens. However, the mechanisms of genetic resistance for MD are complex and not fully understood. MD-resistant line 6_3 and MD-susceptible line 7_2 are two highly inbred progenitor lines of White Leghorn. Recombinant Congenic Strains(RCS) were developed from these two lines, which show varied susceptibility to MD.Results: We investigated genetic structure and genomic signatures across the genome, including the line 6_3 and line7_2, six RCSs, and two reciprocally crossed flocks between the lines 6_3 and 7_2(F1 6_3× 7_2 and F1 7_2× 6_3) using Affymetrix~? Axiom~? HD 600 K genotyping array. We observed 18 chickens from RCS lines were specifically clustered into resistance sub-groups distributed around line 6_3. Additionally, homozygosity analysis was employed to explore potential genetic components related to MD resistance, while runs of homozygosity(ROH) are regions of the genome where the identical haplotypes are inherited from each parent. We found several genes including SIK, SOX1, LIG4, SIK1 and TNFSF13B were contained in ROH region identified in resistant group(line 6_3 and RCS), and these genes have been reported that are contribute to immunology and survival. Based on F_(ST) based population differential analysis, we also identified important genes related to cell death and anti-apoptosis, including AKT1, API5, CDH13, CFDP and USP15,which could be involved in divergent selection during inbreeding process.Conclusions: Our findings offer valuable insights for understanding the genetic mechanism of resistance to MD and the identified genes could be considered as candidate biomarkers in further evaluation. | Lingyang Xu Yanghua He Yi Ding George E.Liu Huanmin Zhang Hans H.Cheng Robert L.Taylor Jr. Jiuzhou Song | 2018 | Journal of Animal Science and Biotechnology2018,9,4: | 0 |