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浏览/检索结果: 共14条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Hyperspectral Differences Between New and Old Leaves of Dominant Tree Species in Changbai Mountain 期刊论文  OAI收割 SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 卷号: 44, 期号: 8, 页码: 2372-2380 作者:  Chen Jun-Jie;  Yu Quan-Zhou;  Tang Qing-Xin;  Liang Tian-Quan;  Jiang Jie   |  收藏  |  浏览/下载：22/0  |  提交时间：2024/10/21 Old and new leaves  Leaf traits  Spectral characteristics  Analysis of variance   Evaluating the Impact of Environmental Performance and Socioeconomic and Demographic Factors on Land Use and Land Cover Changes in Kibira National Park, Burundi 期刊论文  OAI收割 SUSTAINABILITY, 2024, 卷号: 16, 期号: 2, 页码: 24 作者:  Nyirarwasa, Anathalie;  Han, Fang;  Yang, Zhaoping;  Mperejekumana, Philbert;  Umwali, Edovia Dufatanye   |  收藏  |  浏览/下载：25/0  |  提交时间：2024/03/04 multivariate analysis of variance model  environmental performance index  landscape fragmentation  Spearman correlation  Pearson correlation  Kibira National Park  Burundi   Do model choice and sample ratios separately or simultaneously influence soil organic matter prediction? 期刊论文  OAI收割 INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH, 2022, 卷号: 10, 期号: 3, 页码: 470-486 作者:  John, Kingsley;  Bouslihim, Yassine;  Ofem, Kokei Ikpi;  Hssaini, Lahcen;  Razouk, Rachid   |  收藏  |  浏览/下载：27/0  |  提交时间：2022/09/21 Analysis of variance  Agriculture  Digital soil mapping  Predictive mapping  Mediterranean   glmm.hp: an R package for computing individual effect of predictors in generalized linear mixed models 期刊论文  OAI收割 JOURNAL OF PLANT ECOLOGY, 2022, 卷号: 15, 期号: 6, 页码: 1-6 作者:  Lai, Jiangshan;  Zou, Yi   |  收藏  |  浏览/下载：22/0  |  提交时间：2023/02/02 coefficient of determination  commonality analysis  fixed effect  GLMM  hierarchical partitioning  marginal R-2  relative importance  variance partitioning   Reverse jet parameters study on aerodynamic thermal uncertainty of a blunt body 期刊论文  OAI收割 AEROSPACE SCIENCE AND TECHNOLOGY, 2020, 卷号: 107, 页码: 106260 作者:  Zhang W;  Wang S;  Wang Q;  Ju SJ(鞠胜军);  Yan C   |  收藏  |  浏览/下载：34/0  |  提交时间：2021/02/09 Aerodynamic thermal  Opposing jets  Parametric sensitivity analysis  Uncertainty quantification  Analysis of Variance  Non-Intrusive Polynomial Chaos   A stratified optimization method for a multivariate marine environmental monitoring network in the Yangtze River estuary and its adjacent sea SCI/SSCI论文  OAI收割 2015 作者:  Gao B. B.;  Wang, J. F.;  Fan, H. M.;  Xu, K.;  Hu, M. G. 收藏  |  浏览/下载：27/0  |  提交时间：2015/12/09 monitoring site optimization  spatial simulated annealing  mean of  surface with nonhomogeneity  marine environment  principal component analysis  vegetable cultivation area  constrained  optimization  risk-assessment  china  variance  quality  fronts  performance  simulation   Spatial characteristics of surface water quality in the Haicheng River (Liao River basin) in Northeast China EI期刊论文  OAI收割 2013 作者:  Bu Hongmei 收藏  |  浏览/下载：31/0  |  提交时间：2014/12/31 River pollution  Analysis of variance (ANOVA)  Cluster analysis  Factor analysis  Multivariant analysis  Nitrogen  Pollution  Rivers  Water pollution control  Water quality   Analysis on the influence of random vibration on MEMS gyro precision and error compensation (EI CONFERENCE) 会议论文  OAI收割 2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China 作者:  Li M. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 In order to improve its precision in dynamic environment  a Kalman filter was designed. Firstly  two sets of random drift data of MEMS gyro were respectively analysed  and it was found that the variance of random drift under random vibration significantly increased and its mean also changed. Then calculation results show that attitude angle error under random vibration is 2.6  while in the static test it is 0.25. Analysis on the characteristics of random drift was carried out  and it is found that it can be treated as stable  normally distributed random signal. Finally  a corresponding Kalman filter was designed. The results indicated that after filtering the variance of random drift is reduced to 0.0282  26.4% of pre-filtering and the attitude angle error is reduced to 1.5  57.7% of pre-filtering. The above method can effectively compensate for the attitude angle error of MEMS gyro caused by random vibration. This study can be a reference to the application of low-cost MEMS gyro in aircraft navigation. (2012) Trans Tech Publications  Switzerland.   Classification and differential metabolite discovery of liver diseases based on plasma metabolic profiling and support vector machines 期刊论文  OAI收割 journal of separation science, 2011, 卷号: 34, 期号: 21, 页码: 3029-3036 作者:  Lin, Xiaohui;  Zhang, Yang;  Ye, Guozhu;  Li, Xiang;  Yin, Peiyuan 收藏  |  浏览/下载：26/0  |  提交时间：2015/11/12 Analysis of variance  GC-MS  Liver diseases  Metabonomics  Support vector machine   Studies on the chromium concentrations in topsoils and subsoils of two rapidly industrialized cities in the Yangtze River Delta in east China 期刊论文  OAI收割 ENVIRONMENTAL EARTH SCIENCES, 2010, 卷号: 61, 期号: 6, 页码: 1239-1247 作者:  Wu, Chunfa;  Luo, Yongming;  Huang, Biao;  Zhang, Haibo;  Wang, Huoyan   |  收藏  |  浏览/下载：26/0  |  提交时间：2011/07/14 Chromium  One-way Analysis Of Variance  Paired-samples t Test  Spatial Distribution