搜索结果: 1-15 共查到“理学 nested”相关记录23条 . 查询时间(0.093 秒)
A fast nested dissection solver for Cartesian 3D elliptic problems using hierarchical matrices
Elliptic equations Fast algorithms Nested dissection Hierarchical matrices Sparse matrix
2015/7/14
We present a fast algorithm for solutions to linear systems arising from three dimensional elliptic problems on a regular Cartesian mesh. We follow the approach of Schmitz and Ying (2012) on combining...
This article describes a new photogrammetric 3-D measurement system for flat objects like plywood boards. 3-D measurement is
needed to get true dimensions of the object along its possibly curved sur...
An adaptive sequential optimum design for model selection and parameter estimation in non-linear nested models
D-optimality KL-optimality DKL-optimality log-likelihood ratio test stochastic convergence sequential optimum design
2011/10/9
Abstract: This work propose a sequential procedure which is useful to select the best model among several nested non-linear models and to estimate efficiently the parameters of the chosen model. At ea...
Sums of Ceiling Functions Solve Nested Recursions
Nested recursion Ceiling function Formal satisfaction Equivalence class
2011/9/15
Abstract: It is known that, for given integers s \geq 0 and j > 0, the nested recursion R(n) = R(n - s - R(n - j)) + R(n - 2j - s - R(n - 3j)) has a closed form solution for which a combinatorial inte...
SIR epidemics on a scale-free spatial nested modular network with a non-trivial threshold
Epidemics SIR Reed-Frost percolation long-range directed scale-free modular nested communities hierarchical
2011/8/30
Abstract: We propose a class of random scale-free spatial networks with nested community structures and analyze Reed-Frost epidemics with community related independent transmissions. We show that the ...
A recursive approach to the O(n) model on random maps via nested loops
recursive O(n) model random maps via nested loops
2011/7/25
Abstract: We consider the O(n) loop model on tetravalent maps and show how to rephrase it into a model of bipartite maps without loops. This follows from a combinatorial decomposition that consists in...
A recursive approach to the O(n) model on random maps via nested loops
recursive O(n) model random maps via nested loops
2011/7/25
Abstract: We consider the O(n) loop model on tetravalent maps and show how to rephrase it into a model of bipartite maps without loops. This follows from a combinatorial decomposition that consists in...
A nested mixture model for protein identification using mass spectrometry
A nested mixture model mass spectrometry
2010/11/17
Mass spectrometry provides a high-throughput way to identify proteins in biological samples. In a typical experiment, proteins in a sample are first broken into their constituent peptides. The result...
Existence of doubling measures via generalised nested cubes
doubling measures via generalised nested cubes
2010/11/9
Using generalised dyadic cubes and the mass distribution principle, we give a straightforward new proof for the existence of doubling measures in complete doubling metric spaces.
Nested Threshold Autoregressive (NeTAR) Models for Studying Sources of Nonlinearity in Streamflows
Nested Threshold Autoregressive Models Sources of Nonlinearity Streamflows
2009/10/23
Historical development of nonlinear stochastic modeling of streamflows is discussed.
Physical considerations and graphical investigations of daily streamflows
revealed that air temperature and state...
An Overview of a Nested Watershed Study in Arctic Alaska
Overview Nested Watershed Study Arctic Alaska
2009/10/23
The hydrology of a nest of three watersheds has been studied since 1992 on the
North Slope of Alaska, with some additional data collected at individual sites
previously. Hydrologic studies of nested...
Binary star formation and mass outflows：Mhd nested grid simulation
Binary star Mhd nested grid simulation mass outflows
2009/6/17
Binary star formation and mass outflows：Mhd nested grid simulation。
Regional CO pollution and export in China simulated by the high-resolution nested-grid GEOS-Chem model
Regional CO pollution high-resolution nested-grid GEOS-Chem model
2009/6/16
An updated version of the nested-grid GEOS-Chem model is developed allowing for higher horizontal (0.5°×0.667°) resolution as compared to global models. CO transport over a heavily polluted region, th...
Scale dependence of the episodic hydrochemical response of nested catchments at Plynlimon
surface water chemistry nested catchments forested catchments
2009/6/8
Previous monitoring of the surface water chemistry of the forested catchments at Plynlimon has concentrated on weekly measurements. Hence, peak values and details of the rapid changes in chemistry occ...
Using stable isotope tracers to assess hydrological flow paths, residence times and landscape influences in a nested mesoscale catchment
stable isotope tracers hydrological flow paths
2009/5/18
δ18O measurements in precipitation and stream waters were used to investigate hydrological flow paths and residence times at nested spatial scales in the mesoscale (233 km2) River Feugh catchment in t...