搜索结果: 46-60 共查到“理学 Scale”相关记录706条 . 查询时间(0.157 秒)
The analysis of the Standardized Precipitation Index in the Mediterranean area:large-scale patterns
Climate variability drought monitoring
2015/9/28
Problems related to the identification and monitoring of drought are investigated. In particular, drought conditions in Italy are examined using the Standardized Precipitation Index (SPI) on different...
Antipersistent dynamics in short time scale variability of self-potential signals
Fractal propeties variogram analysis antipersistence self-potential signal earthquake prediction
2015/9/28
Time scale properties of self-potential signals are investigated through the analysis of the second order structure function (variogram), a powerful tool to investigate the spatial and temporal variab...
Scale interactions in the tropical Atlanticvariability simulated with a coupled GCM
coupled model Gulf of Guineaevents El Niñ o-Southern Oscillation timescaleinteractions clusters
2015/9/17
Warm and cold events in the Gulf of Guinea are an important feature in the interannual variability of the tropical Atlantic Ocean, and partly a manifestation of the equatorial Atlantic system's intrin...
Scale interactions on diurnal toseasonal timescales and their relevanceto model systematic errors
diurnal cycle MJO convection ocean-atmosphere interaction
2015/9/17
Examples of current research into systematic errors in climate models are used to demonstrate the importance of scale interactions on diurnal,intraseasonal and seasonal timescales for the mean and var...
The TID model for modulation of large scale electron density models
ionosphere electron density models Travelling Ionospheric Disturbances TID model
2015/9/10
Various modern applications of empirical electron density models need realistic structures of the electron density
distribution with smaller scales than the model background. Travelling Ionospheric D...
Satellite differential SAR interferometry for the evaluation of effects of hydrogeological disasters:definition of a scale for damage evaluation
landslide movements damage evaluation differential SAR interferometry remote sensing of land surface Maratea
2015/9/7
In this paper we present the results of monitoring soil movements over an about 10 km2 area around the border between the Calabria and Basilicata regions in Italy. Monitoring has been performed using ...
The El Nino events: their classification and scale-invariance laws
fractal geometry scale-invariance MEI, El Nino, SOC
2015/8/28
Many point indices have been developed to describe the El Niño/Southern Oscillation but the Multivariate ENSO Index (MEI) is considered the most representative since it links different meteorolog...
Non-permanent GPS data for regional-scale kinematics: reliable deformation rate before the 6 April, 2009, earthquake in the L'Aquila area
GPS Non-permanent station Subsampling Velocity Strain field
2015/8/28
A GPS-based geodetic study at a regional scale requires the availability of a dense network that is characterized by 10 km to 30 km spacing, typically followed in a few continuous GPS stations (CGPSs)...
Exact Covariance Thresholding into Connected Components for Large-Scale Graphical Lasso
sparse inverse covariance selection sparsity graphical lasso Gaussian graphical models graph connected components concentration graph large scale covariance estimation
2015/8/21
We consider the sparse inverse covariance regularization problem or graphical lasso with regularization parameter λ. Suppose the sample covariance graph formed by thresholding the entries of the sampl...
Selection and Estimation for Large-Scale Simultaneous Inference
Large-Scale Simultaneous Inference Selection
2015/8/20
Modern scientific technology is providing a new class of simultaneous inference
problems for the applied statistician, where there are hundreds or thousands or even
more hypothesis tests to co...
Large-Scale Simultaneous Hypothesis Testing: The Choice of a Null Hypothesis
Null Hypothesis Simultaneous Hypothesis Testing
2015/8/20
Current scientific techniques in genomics and image processing routinely produce hypothesis testing problems with hundreds or thousands of cases to consider simultaneously.
This poses new di...
Correlated z-values and the accuracy of large-scale statistical estimates
large-scale statistical estimates Correlated z-values
2015/8/20
We consider large-scale studies in which there are hundreds or thousands of correlated cases to investigate, each represented by its own normal variate, typically a
z-value. A familiar example is pro...
Empirical Bayes Estimates for Large-Scale Prediction Problems
microarray prediction empirical Bayes shrunken centroids
2015/8/20
Classical prediction methods such as Fisher's linear discriminant function were designed for
small-scale problems, where the number of predictors N is much smaller than the number of
observations n....
Small Autonomous Aircraft for Economical Oceanographic Observations on a Wide Scale
Economical Oceanographic Observations Wide Scale
2015/8/19
A prototype aerosonde, which will fit comfortably on a desktop, and can be packed in two boxes sufficiently small to be taken as airline luggage, is shown in Figure 1. It will have a range of over 7,0...
We give an algorithm that computes the final state of certain growth models without computing all intermediate states. Our technique is based on a “least action principle” which characterizes the odom...
