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| 1 | 基于随机子空间的分布式结构模态参数识别显示文摘针对大型建筑结构集中处理庞大数据获得结构模态参数的不便性,提出适用于密集布排的传感器网络结构的分布式模态参数识别方法.以混凝土钢管拱桥为实验平台,按不同子结构划分工况,通过随机子空间方法有效地从环境激励下的响应中提取子结构模态参数,结合稳定图进行子结构系统定阶,去除虚假模态.利用粒子群优化算法和平均技术调整子结构振型,获取桥梁结构的整体振型.以模态置信度为判据对比分析该分布式算法和集中式算法的识别结果.结果表明,该方法具有良好的识别效果,可用于不同形式复杂结构的模态振型识别. | 张敏 谢慧才 Sung-Han Sim B.F.Spencer Jr | 2009 | 深圳大学学报(理工版)2009，26，4： | 2 |
| 2 | Effect of propranolol on the splanchnic and peripheral renin angiotensin system in cirrhotic patients显示文摘AIM:To evaluate the effect of β-blockade on angiotensins in the splanchnic and peripheral circulation of cirrhotic patients and also to compare hemodynamic parameters during liver transplantation according to propranolol pre-treatment or not. METHODS:Patients were allocated into two groups:outpatients with advanced liver disease(LD) and during liver transplantation(LT). Both groups were subdivided according to treatment with propranolol or not. Plasma was collected through peripheral venipuncture to determine plasma renin activity(PRA),Angiotensin(Ang) Ⅰ,Ang Ⅱ,and Ang-(1-7) levels by radioimmunoassay in LD group. During liver transplantation,hemodynamic parameters were determined and blood samples were obtained from the portal vein to measure renin angiotensin system(RAS) components.RESULTS:PRA,Ang Ⅰ,Ang Ⅱ and Ang-(1-7) were signifi cantly lower in the portal vein and periphery in all subgroups treated with propranolol as compared to non-treated. The relationships between Ang-(1-7) and Ang Ⅰ levels and between Ang Ⅱ and Ang Ⅰ were significantly increased in LD group receiving propranolol. The ratio between Ang-(1-7) and Ang Ⅱ remained unchanged in splanchnic and peripheral circulation in patients under β-blockade,whereas the relationship between Ang Ⅱ and Ang Ⅰ was significantly increased in splanchnic circulation of LT patients treated with propranolol. During liver transplantation,cardiac output and index as well systemic vascular resistance and index were reduced in propranolol-treated subgroup. CONCLUSION:In LD group,propranolol treatment reduced RAS mediators,but did not change the ratio between Ang-(1-7) and Ang Ⅱ in splanchnic and peripheral circulation. Furthermore,the modification of hemodynamic parameters in propranolol treated patients was not associated with changes in the angiotensin ratio. | Walkíria Wingester Vilas-Boas Antnio Ribeiro-Oliveira Jr Renata da Cunha Ribeiro Renata Lúcia Pereira Vieira Jerusa Almeida Ana Paula Nadu Ana Cristina Sim■es e Silva Robson Augusto Souza Santos | 2008 | World Journal of Gastroenterology2008，14，44： | 2 |
| 3 | 基于分布式传感网络的结构模态识别方法显示文摘结构的模态参数识别是结构健康监测系统的基本任务。随着工程结构的日益大型化和复杂化,振动测试时需要布置大量的传感器。传统的集中采集和处理技术将难以胜任海量数据的处理要求,采用无线智能传感器的结构健康监测系统正是应运而生的新方向,而分布式采集和处理是其特点。在无线智能传感网络拓扑结构中采用分布式算法求解结构整体振型,利用随机子空间法识别各子结构模态,结合粒子群优化算法调整子振型获取结构整体振型。通过混凝土钢管拱桥模型试验验证了分布式算法的可行性,并利用模态置信度(MAC)对比分析了由分布式模态识别方法和集中式模态识别方法得到的结果,结果表明两种算法吻合较好。 | 张敏 谢慧才 Sung han Sim B F Spencer Jr | 2010 | 土木工程学报2010，43，3： | 2 |
| 4 | ABC/2for rapid clinical estimate of infarct,perfusion,and mis-match volumes显示文摘 | Sims JR Gharai LR Schaefer PW | 2009 | Neurology2009，72，24： | 1 |
| 5 | ABC/2 for rapid clinical estimate of infarct,perfusion,and mismatch volumes 显示文摘 | Sims JR Gharai LR Schaefer PW | 2009 | Neurology2009，72，24： | 1 |
| 6 | Regional CNS responses to IFN-gamma determine lesion localization patterns during EAE pathogenesis显示文摘 | Lees JR Golumbek PT Sim J | 2008 | J Exp Med2008，205，11： | 1 |
| 7 | Sonic hedgehog regulatesisechemia/hyposia-induced neural progenitor proliferation显示文摘 | Sims JR Lee SW Topelkara K | 2009 | Stroke2009，40，： | 1 |
| 8 | Body mass is a poor predictor of peak plantar pressure in diabetic men显示文摘 | CAVANAGH PR SIMS DS Jr SANDERS LJ | 1991 | Diabetes Care1991，14，8： | 1 |
| 9 | Arterial occulusion revealed byCT angiography predicts NIH stroke score and acute outcomes af-ter IV tPA treatment显示文摘 | Sims JR Rordof G Sith EE | 2005 | AJNR2005，26，2： | 1 |
| 10 | Sonic hedgehog inversely regulates the expression of angiopoietin-1 and angiopoietin-2 in fi- broblasts显示文摘 | Lee SW Moskowitz MA Sims JR | 2007 | IntJ Mol Med2007，19，3： | 1 |
| 11 | Vertical versus shared leader- ship as predictors of the effectiveness of change manage- ment teams : An examination of aversive, directive, transactional, transformational and empowering leader behaviors 显示文摘 | Pearce C L Sims Jr H P | 2002 | Group Dynamics2002，，6： | 1 |
| 12 | Targeting osteoelasts with zoledronic acid prevents bone destruction in collagen- induced arthritis显示文摘 | Sims NA Green JR Glatt M | 2004 | Arthritis Rheum2004，50，： | 1 |
| 13 | Targeting osteoclasts with zoledronic acid prevents bone destruction in collagen-induced arthritis显示文摘 | Sims NA Green JR Glatt M | 2004 | Arthritis Rheum2004，50，7： | 1 |
| 14 | The fabrication,properties and microstructure of Cu-Ag and Cu-Nb composite conductors显示文摘 | Han K Embury J D Sims JR etal | 1999 | Mater Sci Eng A1999，，： | 1 |
| 15 | How uncommon are isolated lung metastases in colorectal cancer?A review from database of 754 patients over 4 years显示文摘 | TAN K K LOPES G L Jr SIM R | 2009 | J Gastrointest Surg2009，13，： | 1 |
| 16 | The genome of Syntrophomonas wolfei: new insights into syntrophic metabolism and biohydrogen production 显示文摘 | Sieber JR Sims DR Han C Kim E Lykidis A Lapidus AL Mcdonnald E Rohlin L Culley DE Gunsalus R Mcinerney MJ | 2010 | Environ Microbiol2010，12，8： | 1 |
| 17 | Resistance exercise sessions do not provoke acute immunosuppression in older women显示文摘 | Neves Sda C Jr Lima RM Sim HG | 2009 | J Strength Cond Res2009，23，1： | 1 |
| 18 | West nile encephalitis in Massachusetts显示文摘 | Hochberg LR Sims JR Davis BT | | 0，，08： | 1 |
| 19 | Empowered sell- ing teams: how shared leadership can contribute to sell- ing team outcomes 显示文摘 | Perry M L Pearce C L Sims Jr H P | 1999 | Journal of Personal Selling and Sales Management1999，19，3： | 1 |
| 20 | Identification of an an- tithrombotic allosteric modulator that acts through helix 8 of PAR1 显示文摘 | DOWAL L SIM DS DILKS JR | 2011 | ProcNatlAcadSci USA2011，108，7： | 1 |
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