搜索结果: 1-15 共查到“理学 closure”相关记录56条 . 查询时间(0.078 秒)
Closure of the Global Overturning Circulation Through the Indian, Pacific, and Southern Oceans: Schematics and Transports
Indian Pacific Southern Oceans
2015/7/16
The overturning pathways for the surface-ventilated North Atlantic Deep Water (NADW) and Antarctic Bottom Water (AABW) and the diffusively formed Indian Deep Water (IDW) and Pacific Deep Water (PDW) a...
Optimization of NWP model closure parameters using total energy norm of forecast error as a target
NWP model closure parameters forecast error
2014/12/19
We explore the use of dry total energy norm in
improving numerical weather prediction (NWP) model forecast skill. The Ensemble Prediction and Parameter Estimation System (EPPES) is utilized to estima...
A refined statistical cloud closure using double-Gaussian probability density functions
refined statistical cloud closure double-Gaussian probability density functions
2014/12/12
We introduce a probability density function (PDF)-based scheme to parameterize cloud fraction, average liquid water and liquid water flux in large-scale models, that is developed from and tested again...
Unified parameterization of the planetary boundary layer and shallow convection with a higher-order turbulence closure in the Community Atmosphere Model: single-column experiments
the planetary boundary layer higher-order turbulence closure Community Atmosphere Model single-column experiments
2014/12/10
This paper describes the coupling of the Community Atmosphere Model (CAM) version 5 with a unified multi-variate probability density function (PDF) parameterization, Cloud Layers Unified by Binormals ...
Paleoceanography of the South China Sea and the western equatorial Pacific: Testing linkages between Indonesian Seaway closure and sea level change during the Middle to Late Miocene (～13--5 Ma)
Paleoceanography the equator the equator of the south China sea west Pacific sea level climate change
2014/10/22
The tectonic opening and closing of ocean gateways played a key role in global climate change during the Cenozoic. Although changes in these gateways affected ocean circulation and heat transport, man...
High Order Moment Closure with Global Hyperbolicity of Vlasov-Maxwell Equations
Moment closure Vlasov-Maxwell equation Boltzmann equation Ex-tended magnetohydrodynamics
2014/9/26
In this paper, we derive the extended magnetohydrodynamic models based on the
moment closure of the Vlasov-Maxwell equation. We adopt the Grad type moment
expansion which was firstly proposed in [12...
Origin of the gases released from the Acqua Passante and Ermeta wells (Mt. Amiata, central Italy) and possible environmental implications for their closure
Central Italy Amiata volcano Hydrothermal gases CO_2 Environmental impact
2015/8/18
The Mt. Amiata volcano (Tuscany, central Italy) hosts the second largest geothermal field of Italy. Its SW and NE sectors are characterized by the presence of several CO2-rich (>95% by vol.) gas disch...
Towards an efficient multiscale modeling of low-dimensional reactive systems: study of numerical closure procedures
efficient multiscale modeling low-dimensional reactive systems numerical closure procedures Computational Physics
2012/4/27
In this paper, we present a study on how to develop an efficient multiscale simulation strategy for the dynamics of chemically active systems on low-dimensional supports. Such reactions are encountere...
A simple linear response closure approximation for slow dynamics of a multiscale system with linear coupling
closure approximation slow dynamics multiscale system linear coupling
2011/9/14
Abstract: Many applications of contemporary science involve multiscale dynamics, which are typically characterized by the time and space scale separation of patterns of motion, with fewer slowly evolv...
An effective method to compute closure ordering for nilpotent orbits of $θ$-representations
compute closure nilpotent orbits of $θ$-representations Algebraic Geometry
2011/8/31
Abstract: We develop an algorithm for computing the closure of a given nilpotent $G_0$-orbit in $\g_1$, where $\g_1$ and $G_0$ are coming from a $\Z$ or a $\Z/m\Z$-grading $\g= \bigoplus \g_i$ of a si...
Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison
Proper orthogonal decomposition, reduced-order modeling, turbulence,large eddy simulation, eddy viscosity, variational multiscale, dynamic subgrid-scale model
2011/9/2
This paper puts forth two new closure models for the proper orthogonal decomposition reduced-order modeling of structurally dominated turbulent ows: the dynamic subgrid-scale model and the variational...
Crack Closure and Shape Restoration Using NiTi Shape-Memory Alloy
Crack Closure Shape Memory Alloy Actuator Shape Recovery Shape Restoration Structure Repair
2011/11/22
Because of the high actuation stress and high recovery strain, NiTi shape-memory alloy (SMA) has been proposed for shape/position control and crack closure in structures for many years. In this paper,...
Pattern closure of groups of tree automorphisms
closed self-similar groups finitely constrained groups
2011/1/19
It is shown that a group defined by forbidding all patterns of size s + 1 that do not appear in a given self-simialr group of tree automorphisms is the topological closure of a self-similar, countable...
Distance-balanced closure of some graphs
Distances in graphs distance-balanced graphs distance-balanced closure
2011/2/22
In this paper we prove that any distance-balanced graph G with (G) |V (G)| − 3 is regular. Also we define notion of distance-balanced closure of a graph and we find distance-
balanced closur...
On the $p$-adic closure of a subgroup of rational points on an Abelian variety
$p$-adic closure subgroup of rational points Abelian variety
2011/2/24
In 2007, B. Poonen (unpublished) studied the p{adic closure of a subgroup of rational points on a commutative algebraic group. More recently, J. Bellache asked the same question for the special case...