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城市AR中，场景结构的自动获取，对自适应信息表达具有重要意义，是解决“层叠式”信息表现形式引发的信息指示不明、场景感知混乱等问题的关键步骤。然而，场景结构信息隐藏在场景图像中，直接提取十分困难。2D地图描述了地理实体的位置、轮廓和空间布局，可作为场景结构提取的先验信息。针对城市AR中场景结构获取难、效率低的问题，本文提出一种基于2D地图的建筑物场景结构自动化提取方法。在地理配准的基础上，首先根据2...
利用2D-STI技术测量肝硬化患者的左室局部收缩功能，探讨不同Child-Pugh分级肝硬化患者左室收缩功能与肝硬化发展程度的相关性与临床价值。 方法 选取肝硬化患者60例为肝硬化组，将患者根据Child-Pugh分级的A、B、C 3个等级对应分为A、B、C 3组；选取与肝硬化组相同时间段内年龄、性别均相匹配的门诊健康体检者30例为正常对照组。测量常规指标，并分析心尖四腔切面、心尖三腔切面和心尖两...
UNIFIED TOPOLOGICAL FRAMEWORK FOR RETRIEVING 2D AND 3D MULTI-SCALE SPATIAL INFORMATION
Topological connectivity CityGML 3D building multi-scale LoD 2D and 3D model
2018/11/9
Different applications or users need different model (differ requirement on level of details; geometry and information), less focuses in topological element. Improper manage geometry, attribute and to...
多通道瞬变电磁法的反演工作是在大地脉冲响应的基础上进行的，因此本文用2D有限元正演来求取大地脉冲响应，实现多道瞬变电磁法的正演模拟研究.研究工作首先在有源大地电磁法2D有限元模拟的基础上进行，原有2D有限元法的频带相对于多通道瞬变电磁法的频带是窄频的，为此采用校正法将其扩展到所需的宽度，实现了频率域宽频带有源电磁勘探方法的正演模拟；然后通过频时变换变换到时间域，得到瞬变电磁法的阶跃响应；最后通过求...
Ion thermal effects on E-region instabilities: 2D kinetic simulations
E-region electrojet Ionospheric irregularities Plasma instabilities
2017/3/22
Radars frequently receive strong returns from naturally occurring plasma density irregularities centered around
100 km altitude in the atmosphere. These E-region ionospheric irregularities occur when...
BEYOND FLOOD HAZARD MAPS: DETAILED FLOOD CHARACTERIZATION WITH REMOTE SENSING, GIS AND 2D MODELLING
Flood Hazards LiDAR Flood Simulation HEC RAS 2D Modelling
2016/10/14
Flooding is considered to be one of the most destructive among many natural disasters such that understanding floods and assessing the risks associated to it are becoming more important nowadays. In t...
APPLICATION PERSPECTIVE OF 2D+SCALE DIMENSION
Scale dimension current scale application potential scale application data structure 3D vario-scale model
2016/10/14
Different applications or users need different abstraction of spatial models, dimensionalities and specification of their datasets due to variations of required analysis and output. Various approaches...
Ribonuclease S Dynamics Measured Using a Nitrile Label with 2D IR Vibrational Echo Spectroscopy
Anthraquinonic dyes Boron-doped diamond anode Metal catalysts Solar photoelectro-Fenton Wastewater treatment
2016/5/25
A nitrile-labeled amino acid, p-cyanophenylalanine, is introduced near the active site of the semisynthetic enzyme ribonuclease S to serve as a probe of protein dynamics and fluctuations. Ribonuclease...
Third-order 2D Central Schemes for Hyperbolic Conservation Laws
Two-dimensional framework system the law of conservation of two-dimensional euler equation the high resolution
2015/10/8
We extend a one-dimensional central-scheme first introduced by Liu and Tadmor, to the rather general framework of two-dimensional systems of conservation laws. This scheme is based on a two-dimensiona...
Non-Oscillatory Central Schemes for the Incompressible 2D Euler Equations
Hyperbolic conservation laws second-order accuracy central difference schemes non-oscillatory schemes Incompressible Euler equations
2015/10/8
We adopt a non-oscillatory central scheme, first presented in the context of Hyperbolic conservation laws in [nessyahu-tadmor] followed by [jiang-tadmor], to the framework of the incompressible Eule...
A physical pattern recognition approach for 2D electromagnetic induction studies
electromagnetic induction pattern recognition 2d structures
2015/9/28
We present a new tomographic procedure for the analysis of natural source electromagnetic (EM) induction field data collected over any complex 2D buried structure beneath a flat air-earth boundary. Th...
Numerical 2D modeling of site responsein Dinar Graben, Southwest Turkey,and comparison with observations
2D modeling basin edge effect Dinar site response
2015/9/10
The October 1, 1995 Dinar earthquake (ML=5.9) caused extensive damage within a limited area in Dinar town located
in southwestern Turkey. Graben structure of the damaged area suggests the basin edge ...
Perspectives of 2D and 3D mapping of atmospheric pollutants over urban areas by means of airborne DOAS spectrometers
DOAS applications in urban areas atmospheric pollutants tomography aircraft measurements of atmospheric trace gases
2015/9/7
In the field of air quality control, optical remote sensing systems can measure the spatial distribution of gas pollutants, offering numerous advantages over conventional networks of in situ analysers...
Rapid neuronet inversion of 2D magnetotelluric data for monitoring of geoelectrical section parameters
magnetotelluric inverse problem neural network EM monitoring
2015/9/2
The inverse MagnetoTelluric (MT) operator is approximated by means of the Neural Network (NN). The methodology of the NN interpretation in classes of the geoelectrical sections described by the hundre...
2D electrical resistivity tomographies for investigating recent activation landslides in Basilicata Region (Southern Italy)
landslides electrical resistivity tomography
2015/9/1
The results of a geoelectrical survey in the study of recent activation landslides in the Lucanian Apennine chain
(Southern Italy) are discussed in this paper. During the last two years, after meteor...