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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：A second order accurate, decoupled numerical scheme for magnetohydrodynamic equations
磁流体 动力学方程 二阶精确解 耦数值方案
2023/4/27
A temporally second-order accurate, fully discrete finite element method is proposed and analyzed for the magnetohydrodynamic (MHD) equations. A modified Crank-Nicolson method is used to discretize th...
Discovery Helps Engineer More Accurate Cas9s For Crispr Editing（图）
Engineer Cas9s Crispr Editing
2017/10/24
Scientists at the University of California, Berkeley and Massachusetts General Hospital have identified a key region within the Cas9 protein that governs how accurately CRISPR-Cas9 homes in on a targe...
Dark Energy Survey reveals most accurate measurement of dark matter structure in the universe（图）
Dark Energy Survey most accurate measurement dark matter structure the universe
2017/9/4
Imagine planting a single seed and, with great precision, being able to predict the exact height of the tree that grows from it. Now imagine traveling to the future and snapping photographic proof tha...
Computational Method Makes Gene Expression Analyses More Accurate
Computational Method Gene Expression Analyses More Accurate
2017/3/14
A new computational method can improve the accuracy of gene expression analyses, which are increasingly used to diagnose and monitor cancers and are a major tool for basic biological research.Research...
UCLA astronomers make first accurate measurement of oxygen in distant galaxy
UCLA astronomers first accurate measurement of oxygen galaxy
2016/8/11
UCLA astronomers have made the first accurate measurement of the abundance of oxygen in a distant galaxy. Oxygen, the third-most abundant chemical element in the universe, is created inside stars and ...
POTENTIAL OF IKONOS AND QUICKBIRD IMAGERY FOR ACCURATE 3D POINT POSITIONING, ORTHOIMAGE AND DSM GENERATION
IKONOS QUICKBIRD high resolution radiometric preprocessing
2015/7/30
This paper describes the processing of IKONOS and QUICKBIRD imagery of two different datasets in Switzerland for analyzing
the geometric accuracy potential of these images for 3D point positioning, a...
KEY TECHNIQUE OF ACCURATE RECTIFICATION FOR REMOTE SENSING IMAGE WITH HIGH RESOLUTION
Remote Sensing Image High Resolution Parameter Calculation Image Matching Accurate Rectification
2015/7/30
The geo-referenced image with one-meter resolution (GRIOMR) is one of the most basic information in the digital earth. The remote
sensing image with high resolution (RSIHR) is the best resource for ...
I learned about the Glomar Challenger while an undergraduate at Oberlin College. Helen Forman, the wife of the late chair of the department, sailed on the ship several times as a radiolarian specialis...
After lying dormant for hundreds of years, a seaside volcano erupts, splitting its cinder cone, plunging hundreds of tons of material into the sea. The splash from the debris impact flies hundreds of ...
High-order accurate simulation of low-Mach laminarow past two side-by-side cylinders with Spectral Dfference method
low-Mach laminarow simulation
2015/6/23
This report presents development of a two-dimensional solver for compressible viscous
ow using Spectral Dierence (SD) method and its applications on simulating laminar
ow past two cylinders. The ...
A semi-implicit, second-order-accurate numerical model for multiphase underexpanded volcanic jets
semi-implicit second-order-accurate numerical model
2014/12/12
An improved version of the PDAC (Pyroclastic
Dispersal Analysis Code, Esposti Ongaro et al., 2007) numerical model for the simulation of multiphase volcanic
flows is presented and validated fo...
A High–order Accurate Gas-kinetic Scheme for One-and Two-dimensional Flow Simulation
Gas-kinetic scheme initial reconstruction BGK model Boltzmann equation,
2014/9/26
This paper develops a high-order accurate gas-kinetic scheme in the frame-work of the finite volume method for the one- and two-dimensional flow simulations,
which is an extension of the third-order ...
A third-order accurate direct Eulerian GRP scheme for the Euler equations in gas dynamics
Godunov-type scheme generalized Riemann problem Riemann problem
2014/9/26
The paper proposes and implements a third-order accurate direct Eulerian gen-eralized Riemann problem (GRP) scheme for one- and two-dimensional (1D & 2D)
Euler equations in gas dynamics. It is an ext...
A third-order accurate direct Eulerian GRP scheme for one-dimensional relativistic hydrodynamics
Godunov-type scheme WENO Generalized Riemann problem Riemann problem
2014/9/26
The paper analytically derives a third-order accurate direct Eulerian general-ized Riemann problem (GRP) scheme for one-dimensional special relativistic hydrody-namical equations. In our GRP scheme, t...
The Data Absorption Technique: Coevolution to Automate the Accurate Representation of Social Structure
Cognitive agent based simulation coevolution data absorption social science simulation Bayesian optimization algorithm irregular warfare
2014/8/8
Coevolution is a technique that not only enables simulations to represent the formation of social structure, but also facilitates their capability to emulate the processes of iterative feedback under...