|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 振动信号短时分析方法及在机械故障诊断中的应用显示文摘研究了低信噪比情况下提取周期性冲击故障信号特征的短时分析方法。定量分析了短时能量方法的抑噪特性 ,指出信号的局部特征越明显则短时能量处理越能显著地提高信噪比 ,短时能量函数中实际有用信号能量与实际噪声信号能量的比值可作为一特征量使用。建立了信号一步自相关系数与重心频率及过零率之间的定量关系 ,指出短时一步自相关系数和短时过零率的物理含义相同 ,反映的只是信号功率谱重心的变化 ,与信号能量的变化无关 ,故不适宜于分析受强噪声干扰的时变故障信号。 | 朱利民 钟秉林 贾民平 Joshua Altmann | 2000 | 振动工程学报2000，13，3： | 20 |
| 2 | IUD Expulsion and its Socio-demographic Determinants in China显示文摘To identify the determinant of the occurrence of IUD expulsion Materials & Methods Based on 25 733 IUD uses from the Chinese Two per Thousand Fertility Survey data, this study examines the patterns and differentials of IUD expulsion rate by characteristics of women, and identifies the socio demographic determinants of IUD expulsion. A Life Table method was used to calculate the cumulative expulsion rate and a random effects discrete time survival model was employed to assess the impact of potential determinants simultaneously on the risk of expelling an IUD. Results Three major findings are observed in this study. First, IUD expulsion was the second main reason, after pregnancy during IUD use, for IUD discontinuation during the first four years of IUD insertion; the expulsion rates were 6.4%, 9.1%, 10.8 %, and 12.0% at 12, 24, 36 and 48 months, respectively. Second, there was a clustering of IUD expulsion: some women experienced repeated IUD expulsions. Third, some socio demographic characteristics and fertility history were associated with the occurrence of IUD expulsion. In particular, the expulsion rate was high among young women, among those with two or more children and among those living in rural areas. Conclusion The above mentioned factors shoald be addressed in order to decrease the IUD expulsion rate and enhance the reprocluctive he alth of women. | Duo lao WANG, Dan R. Altmann Medical Statistics Unit, Department of Epidemiology & Population Health, London School of Hygiene and Tropical Medicine, UK | 2002 | Journal of Reproduction and Contraception2002，13，3： | 4 |
| 3 | Knockouts of high-ranking males have limited impact on baboon social networks显示文摘 | Mathias FRANZ Jeanne ALTMANN Susan C. ALBERTS | 2015 | Current Zoology2015，61，1： | 3 |
| 4 | Crossflow microfiltration - state of the art,显示文摘 | Siegfried Ripperger Justus Altmann | 2002 | Separation Purification Technology2002，26，： | 2 |
| 5 | Niemann–Pick C1 Like 1 (NPC1L1) an intestinal sterol transporter显示文摘 | Harry R. Davis Scott W. Altmann | 2009 | BBA - Molecular and Cell Biology of Lipids2009，，7： | 2 |
| 6 | Towards a new tuberculosis drug: pyridomycin – nature’s isoniazid显示文摘 | Ruben C. Hartkoorn Claudia Sala Jo?o Neres Florence Pojer Sophie Magnet Raju Mukherjee Swapna Uplekar Stefanie Boy‐R?ttger Karl‐Heinz Altmann Stewart T. Cole | 2012 | EMBO Mol Med2012，，： | 2 |
| 7 | Autologous mesenchymal stem cells for the treatment of secondary progressive multiple sclerosis: an open-label phase 2a proof-of-concept study显示文摘 | Peter Connick Madhan Kolappan Charles Crawley Daniel J Webber Rickie Patani Andrew W Michell Ming-Qing Du Shi-Lu Luan Daniel R Altmann Alan J Thompson Alastair Compston Michael A Scott David H Miller Siddharthan Chandran | 2012 | Lancet Neurology2012，，2： | 2 |
| 8 | Precessing of location and pattern changes of natural sounds in the auditory cortex显示文摘 | Altmann CF Bledowski C Wibral M | 2007 | Neuroimage2007，35，： | 1 |
| 9 | Behavioral,endocrine,and immunological correlates of immigration by an aggressive male into a natural primate group显示文摘 | Sapolsky R M Altmann J | 1992 | Horm Behar1992，26，2： | 1 |
| 10 | Epothilone B and its analogs-a new family of anticancer agents显示文摘 | Altmann K | 2003 | Mini Rev Med Chem2003，3，2： | 1 |
| 11 | Determination of zinc,copper,manganese,and iron in blood from patients with lightsensitive skin diseases显示文摘 | Horkay I Teherani DK Altmann H | 1984 | Dermatologica1984，169，2： | 1 |
| 12 | The effects of hook plateson the subacromial space--a clinical and MRI study显示文摘 | Hackenberger J Schmidt J Altmann T | 2004 | Z OrthopIhre Grenzgeb2004，142，5： | 1 |
| 13 | Particle deposition and layer formation at the crossflow microfil-tration显示文摘 | Altmann J Ripperger S | 1997 | J Membr sci1997，，124： | 1 |
| 14 | The immunology of sepsis 显示文摘 | Sriskandan S Altmann DM | 2008 | J Pathol2008，214，2： | 1 |
| 15 | Application of metabolomics to plant genotype discrimination using statistics and machine learning 显示文摘 | Taylor J King RD Altmann T | 2002 | Bioinformatics2002，182，： | 1 |
| 16 | Poroelastic con- trihution to the reservoir stress path显示文摘 | Altmann J B Mtiller T M Mtiller B I R | 2010 | International Journal of Rock Mechanics and Mining Sciences2010，47，7： | 1 |
| 17 | Prolonged acute kid- ney injury exacerbates lung inflammation at 7 days post-acute kidney in- jury显示文摘 | Andres-Hernando A Altmann C Bhargava R | 2014 | Physiol Rep2014，2，12： | 1 |
| 18 | Intratracheal IL-6 protects against lung inflammation in direct,but not indirect,causes of acute lung injury in mice显示文摘 | Bhargava R Janssen W Altmann C | 2013 | PLo S One2013，8，61： | 1 |
| 19 | Effects of feature-selective attention on auditory pattern and location processing显示文摘 | Altmann CF Henning M Doring MK | 2008 | Neuroimage2008，41，： | 1 |
| 20 | Niemann-Pick C1 like1 protein is critical for intestinal cholesterol absorption显示文摘 | Scott W Altmann Harry R DavisJr | 2004 | Science2004，303，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员