搜索结果: 121-135 共查到“理学 system”相关记录1631条 . 查询时间(0.308 秒)
On-site early-warning system for Bishkek (Kyrgyzstan)
Earthquake early warning Central Asia
font style='font-size:12px;'>
2015/8/14
In this work, the development of an on-site early warning system for Bishkek (Kyrgyzstan) is outlined. Several low cost sensors equipped with MEMS accelerometers are installed in eight buildings distr...
Dynamical system state need not have spectrum
Dynamic system nonlinear dynamical systems differential equation
font style='font-size:12px;'>
2015/8/13
Recently there has been much study of nonlinear dynamical systems (differential equations) which have chaotic solutions. While there is not precise definition of what a chaotic solution is, it is gene...
Hurricane Effects on South Florida Water Management System: A Case Study of Hurricane Wilma of October 2005
Hurricane Florida Water Management
font style='font-size:12px;'>
2015/8/13
An unprecedented eight hurricanes (Charley, Frances, Ivan, Jeanne, Dennis, Katrina, Rita and Wilma) affected South Florida in 2004 and 2005. These storms resulted in high property losses, high rainfal...
Structured and simultaneous Lyapunov functions for system stability problems
Lyapunov function system robustness quadratic lyapunov function the numerical values
font style='font-size:12px;'>
2015/8/13
It is shown that many system stability and robustness problems can be reduced to the question of when there is a quadratic Lyapunov function of a certain structure which establishes stability of dx/dt...
Linear matrix inequalities in system and control theory
Linear matrix inequality system the control theory and linear matrix inequality affine combination symmetric positive semidefinite matrix
font style='font-size:12px;'>
2015/8/12
A wide variety of problems in system and control theory can be formulated (or reformulated) as convex optimization problems involving linear matrix inequalities, that is, constraints requiring an affi...
Optimal excitation signal design for frequency domain system identification using semidefinite programming
The optimal excitation signal and the dispersion function semidefinite programming linear matrix inequality (lmi)
font style='font-size:12px;'>
2015/8/11
The paper discusses two methods of optimal excitation signal design for identification with Maximum Likelihood parameter estimation: The ‘classical’, dispersion function based method, and a new, semid...
Carbon isotopes in the ocean model of the Community Earth System Model (CESM1)
ocean model Community Earth System Model
font style='font-size:12px;'>
2015/8/11
Carbon isotopes in the ocean are frequently used
as paleoclimate proxies and as present-day geochemical
ocean tracers. In order to allow a more direct comparison of
climate model results with this ...
Shipboard Deployment of a VHF OSCR System for Measuring Offshore Currents
Shipboard Deploymen VHF OSCR System Measuring Offshore Currents
font style='font-size:12px;'>
2015/8/10
In July 1994, an OSCR unit was deployed aboard the R/V Columbus Iselin to explore the feasibility of obtaining offshore, vector surface currents from a single platform. The concept is straightforward....
Mixed linear system estimation and identification
Statistical estimation Convex relaxation Interior-point methods
font style='font-size:12px;'>
2015/8/7
We consider a mixed linear system model, with both continuous and discrete inputs and outputs, described by a coefficient matrix and a set of noise variances. When the discrete inputs and outputs are ...
Pan-spectral observing system simulation experiments of shortwave reflectance and long-wave radiance for climate model evaluation
Pan-spectral observing system simulation experiments shortwave reflectance long-wave radiance climate model evaluation
font style='font-size:12px;'>
2015/8/6
Top-of-atmosphere (TOA) spectrally resolved shortwave reflectances and long-wave radiances describe the response of the Earth's surface and atmosphere to feedback processes and human-induced forcings....
System for Automated Geoscientific Analyses (SAGA) v.2.1.4
Automated Geoscientific Analyses
font style='font-size:12px;'>
2015/8/6
The System for Automated Geoscientific Analyses (SAGA) is an open source geographic information system (GIS), mainly licensed under the GNU General Public License. Since its first release in 2004, SAG...
Tuning and assessment of the HYCOM-NORWECOM V2.1 biogeochemical modeling system for the North Atlantic and Arctic oceans
HYCOM-NORWECOM biogeochemical modeling system North Atlantic Arctic oceans
font style='font-size:12px;'>
2015/8/6
The HYCOM-NORWECOM (HYbrid Coordinate Ocean Model–NORWegian ECOlogical Model) modeling system is used both for basic research and as a part of the forecasting system for the Arctic Marine Forecasting ...
The integrated Earth system model version 1:formulation and functionality
integrated Earth system model formulation functionality
font style='font-size:12px;'>
2015/8/6
The integrated Earth system model (iESM) has been developed as a new tool for projecting the joint human/climate system. The iESM is based upon coupling an integrated assessment model (IAM) and an Ear...
Plant functional type classification for earth system models:results from the European Space Agency's Land Cover Climate Change Initiative
Plant functional type classification earth system models European Space Agency Land Cover Climate Change Initiative
font style='font-size:12px;'>
2015/8/6
Global land cover is a key variable in the earth system with feedbacks on climate, biodiversity and natural resources. However, global land cover data sets presently fall short of user needs in provid...
A Quantitative Littoral Classification System
Quantitative Classification System
font style='font-size:12px;'>
2015/8/6
A general approach for quantitative classification of littoral sites has been developed. The approach uses dimensionless parameters to describe the processes in a specific area of physics (e.g., ocean...