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Juno’s new views heighten Europa Clipper excitement（图）
朱诺号飞船 , Europa Clipper spacecraft,木星探测
2023/5/19
New images from NASA’s Juno spacecraft mission Sept. 29 flyby of Jupiter’s moon Europa – an icy world that may host a life-giving, salty ocean beneath its thick crust – brings an upcoming major missio...
LAND USE/LAND COVER CHANGE DETECTION USING MULTI–TEMPORAL SATELLITE DATASET: A CASE STUDY IN ISTANBUL NEW AIRPORT
Multi-temporal satellite dataset Land Use/Land Cover Landsat-8 Sentinel 2A Change detection
2018/5/8
In recent years, especially in metropolitan cities such as Istanbul, the emerging needs of the increasing population and demand for better air transportation capacity have led to big environmental cha...
Satellite rainfall estimates: new perspectives for meteorology and climate from the EURAINSAT project
satellite meteorology precipitation climate nowcasting
2015/9/16
Satellite meteorology is facing a crucial period of its history since recent missions have revealed instrumental for
quantitative rainfall measurements from space and newly conceived missions are at ...
A New Class of High-Order Energy Stable Flux Reconstruction Schemes for Triangular Elements
High-order methods Flux reconstruction Nodal discontinuous Galerkin method Triangular elements Stability
2015/7/3
The flux reconstruction (FR) approach allows various well-known high-order schemes, such as collocation based nodal discontinuous Galerkin (DG) methods and spectral difference (SD) methods, to b...
A New Class of High-Order Energy Stable Flux Reconstruction Schemes
High-order methods Flux reconstruction Nodal discontinuous Galerkin method
2015/7/3
The flux reconstruction approach to high-order methods is robust, efficient, simple to implement, and allows various high-order schemes, such as the nodal discontinu ous Galerkin method an...
A New Implicit Algorithm with Multigrid for Unsteady Incompressible Flow Calculations
New Implicit Algorithm Multigrid Unsteady Incompressible Flow Calculations
2015/7/1
We present a new fully-implicit algorithm for unsteady incompressible flow calculations for both the Euler and Navier-Stokes equations. The new method couples the artificial compressibility ap-proach ...
A New High Resolution Scheme for Compressible Viscous Flows with Shocks
Resolution Scheme Compressible Viscous Flows Shocks
2015/7/1
A new flux splitting and limiting technique which yields one-point stationary shock capturing is pre-sented. The technique is applied to the full Navier-Stokes and Reynolds Averaged Navier-Stokes equa...
A New Approach to GPS Integrity Monitoring Using Prior Probability Models and Optimal Threshold Search
GPS Integrity Monitoring Prior Probability Models Optimal Threshold Search
2015/6/29
Current methods for GPS receiver autonomous integrity monitoring are limited by the assumptions they make. Using published studies of navigation system reliability, this paper develops a prior probabi...
A New Method for Coverage Prediction for the Wide Area Augmentation System (WAAS)
Coverage Prediction Wide Area Augmentation System (WAAS)
2015/6/29
To provide a detailed analysis framework for WAAS accuracy prediction, a new method has been developed which combines GPS geometry simulation with least squares covariance analysis. This approach cons...
GPS Modernization:Capabilities of the New Civil Signals
GPS Modernization:Capabilities Civil Signals
2015/6/26
Currently, the Global Positioning System (GPS) is undergoing stunning changes that will enhance both military and civil capabilities. We say that GPS is being modernized. In fact, this modernization i...
New, inexpensive production materials boost promise of hydrogen fuel（图）
New inexpensive boost hydrogen fuel
2014/3/20
In a study published last week in the journal Science, chemistry professor Kyoung-Shin Choi and postdoctoral researcher Tae Woo Kim combined cheap, oxide-based materials to split water into hydrogen a...
Flight experiment goes boldly forth to advance new technology（图）
Flight experiment new technology
2014/7/11
A hypersonic flight experiment at eight times the speed of sound, led by a University of Queensland PhD student, has safely launched in Norway.
A new particle-like method for high-speed flows with chemical non-equilibrium
Hypersonic flows Numerical simulations Chemical non-equilibrium Supersonic combustion
2010/10/25
The present work is concerned with the numerical simulation of hypersonic blunt body flows with chemical non-equilibrium. New theoretical and numerical formulations for coupling the chemical reaction ...
NASA Announces New Rocket Engine Testing Opportunity at Stennis
New Rocket Engine Testing Opportunity Stennis
2010/4/29
NASA's Stennis Space Center in Stennis, Miss., unveiled an initiative today to chart the future of the nation's premier rocket engine testing facility. Stennis Director Gene Goldman announced plans fo...
Space Station Primed for New Era of Scientific Discoveries
Space Station New Era Scientific Discoveries
2010/2/22
NASA and its international partners are looking forward to unprecedented scientific opportunities aboard the International Space Station, or ISS. With station assembly nearing completion, the ISS Part...