维普中文期刊产品整合服务
179篇 您的检索式:作者名="Heman"
    题名 作者 年代 出处 被引量
1The SGN VIGS Tool: User-Friendly Software to Design Virus-Induced Gene Silencing (VIGS) Constructs for Functional Genomics显示文摘Noe Femandez-Pozo Heman G. Rosli Gregory B. Martin Lukas A. Mueller 2015Molecular Plant2015,8,3:12
2A class of Furstenberg families and their applications to chaotic dynamics显示文摘For each sequence of positive real numbers,tending to positive infinity,a Furstenberg family is defined.All these Furstenberg families are compatible with dynamical systems.Then,chaos with respect to such Furstenberg families are intently discussed.This greatly improves some classical results of distributional chaos.To confirm the effectiveness of these improvements,the relevant examples are provided finally.XIONG JinCheng FU HeMan WANG HuoYun 2014Science China Mathematics2014,57,4:2
3Chaos and null systems显示文摘A dynamical system is called a null system, if the topological sequence entropy along any strictly increasing sequence of non-negative integers is 0. Let 0≦p≦q≦1. A dynamical system is Dqp chaotic, if there is an uncountable subset in which any two different points have trajectory approaching time set with lower density p and upper density q. In this paper, we show that there is a null system which is also D3/41/4 chaotic.WANG HuoYun LIU Xin FU HeMan 2013Science China Mathematics2013,56,3:2
4Distribution characteristics of soil organic carbon and nitrogen in farmland and adjacent natural grassland in Tibet显示文摘Land-use significantly affects soil organic carbon(SOC)and nitrogen cycling,eventually leading to global climate change.The cold and arid climate conditions in Tibet are not conducive to transformation of SOC and nitrogen.Hence,research on SOC and nitrogen distribution under different land-use patterns in Tibet is an important basis to assess the soil carbon and nitrogen potential in the land ecosystem of this area.This study aims to explain the effects of two land-use patterns,namely,farmland and grassland,on SOC and nitrogen contents in the cold regions of Tibet.This study also seeks to provide a scientific basis for the agricultural and grass production system.To achieve these goals,the changing features of total nitrogen(TN),mineralized nitrogen(nitrate nitrogen(NN)and ammonium nitrogen(AN)),and SOC were analyzed in different soil depths(0-5,5-10,10-20,20-30,30-40,and 40-50 cm)in farmland and adjacent natural grassland.The differences in carbon and nitrogen contents between the farmland and grassland of the main agricultural area of Tibet were determined through combined field survey and lab analysis.Results showed that the contents of SOC,TN and mineralized nitrogen in the grassland and farmland decreased with increasing soil depth mainly in the surface with depth of 0-20 cm.The effects of the different land-use patterns on the contents of SOC and TN were primarily evident in the 0-10 cm surface layer.The contents of SOC and TN in the farmland were significantly lower than those in the grassland,with mean reduction by 28.36%for SOC and 20.76%for TN.When the soil layer is deeper than 10 cm,the contents of SOC and TN in the farmland were greater than those in the grassland.This finding indicated that the transformation from grassland to farmland in Tibet mainly influenced the SOC and TN in the 0-10 cm surface layer.Moreover,the results showed that the increment of carbon in the deep soil layers of the farmland partially offsets the SOC loss from the surface because of cultivation.The ratio of mineralized nitrogen to TN in the farmland was significantly higher than that in the grassland(p<0.001).Mineralized nitrogen in the farmland mainly existed in the form of NN,with a mean content of 2.7%in the 0-50 cm surface layer.By contrast,the difference in the ratio of AN to TN between the grassland and farmland was not significant.The results revealed that the land-use pattern in extremely cold agricultural areas mainly affects the contents of SOC and nitrogen in the 0-10 cm surface layer,and agricultural management is beneficial in increasing the SOC content in the deeper layers.Liu Heman Cao Lihua Xu Changchang Yang Hong Li Baoguo 2016International Journal of Agricultural and Biological Engineering2016,9,1:2
5Pharmacological effects of oximes:how relevant are they 显示文摘Heman PM Van Helden RM Busker BPC 1996Arch Toxicol1996,70,:2
6Adjusted survival curves with inverse probability weights 显示文摘Cole SR Heman MA 2004Comput Methods Programs Biomed2004,75,1:1
7CD4+CD25+T cells protect against experimentally induced asthma and alter pulmonary dendritic cell phenotype and function显示文摘Lewkowich I P Heman N S Schleifer K W 2005J Exp Med2005,202,11:1
8Regularity Preserving Image Interpolation显示文摘CAREY W K CHUAND D B HEMAN IS S 0,,09:1
9Exposure of splenic hilum incrases safety of laparoscopic splenectomy 显示文摘Machado MA Makdissi FF Heman P 2004Surg Lapa- rose Endosc Percutan Tech2004,14,1:1
10Vascular endothelial dysfunction显示文摘De-Meyer GR Heman AG 1997Prog cardiovase1997,39,4:1
11Ovarian hypestimulation syndrome:an update view显示文摘Golan A Ronel R Heman A 1989Obstet Cynecol Surv1989,44,6:1
12Iterative Reconstruction Algorithm 显示文摘Heman G T Lent A 1976Computers in Biology and Medicine1976,,6:1
13The hazards of hazard ratios显示文摘Heman MA 2010Epidemiology2010,21,:1
14Synthesis and TEM studies of metal clusters dispersed in polymers 显示文摘Galo C T Marcela G G Heman C 1998Polymer Bulletin1998,41,3:1
15Stabilization of hereditary distribution parameter control system显示文摘Henriquez Heman R 2001Systems and Control Letters2001,,44:1
16Three-dimensional Display of Human Organs from CT显示文摘Heman GT Liu HK 1979Comtp Graph Image Processings1979,,9:1
17Angiostatin directly inhibits human prostate tumor cell invasion by blocking plasminogen binding to its cellular receptor CD26显示文摘Mario Gonzalez-Gronow Heman E Grenetl Govind Gawdi 2005Exp Cell Res2005,303,1:1
18Clinical hematological and cytogenetic characteristics of atypical chronic myeloid leukemia显示文摘Heman dez J M Canizo M C C uneo A 2000Ann Oncol2000,11,4:1
19Pattern and time course of immediate early gone expression in rat following acute stress 显示文摘Cullinan WE Heman JP Battaglia DF 1995Neuroscience1995,64,:1
20Methotrexate and mortality inpatients with rheumatoid arthritis: a prospective study显示文摘Choi HK Heman MA Seeger JD 2002Lancet2002,359,:1
返回顶部 每页显示:
共9页 首页 上一页 第1页 下一页 末页 /9 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费