搜索结果: 1-15 共查到“工学 modal”相关记录37条 . 查询时间(0.037 秒)
MULTI-MODAL REMOTE SENSING DATA FUSION FRAMEWORK
Deep Learning Convolutional Neural Networks Super resolution Crowd-sourced data Data fusion
2017/8/10
The inconsistency between the freely available remote sensing datasets and crowd-sourced data from the resolution perspective forms a big challenge in the context of data fusion. In classical classifi...
A Cartographic Data Modal for Better Geographical Visualization Based on the Cartographic Knowledge
Visualization Cartography Cartographic Knowledge Cartographic Data Model
2015/12/2
Firstly, this paper makes analyses on the geographical visualization and mapping functionality in GIS software which have some shortcomings. So, the idea of geographical information cartographic repre...
USING FUZZY LOGIC TO MANAGE UNCERTAIN MULTI-MODAL DATA IN AN ARCHAEOLOGICAL GIS
Fuzzy Logic Archaeological Data Fuzzy Multi-Modal Data Fuzzy Hough Transform Uncertain Merging
2015/9/28
Into an archaeological GIS, stored information is in spatio-temporal multi-modal form. Dates are estimated according to excavation data. Localizations are determined by several tools such as GPS, rada...
Non-linear modal interactions in the oscillations of a liquid drop in a gravitational "eld
Liquid drop Modal interactions Bifurcations
2015/8/27
Non-linear modal interactions in the dynamics of a vibrating drop are examined. The partial di!erential equations governing the drop vibrations are formulated assuming potential #ow and incompressibil...
Equalization of modal dispersion in multimode fiber using spatial light modulators
Intersymbol interference the modal dispersion multimode optical fiber communication system
2015/8/11
Intersymbol interference (ISI) due to modal dispersion is the dominant limitation to the bit rate-distance product in multimode fiber-optic communication systems. If the light launched into the fiber ...
Crossfit Design: Maximizing Building Potential Across Broad Time and Modal Domains
Crossfit Design Kinetic Architecture Responsive Interactive
2014/10/29
Crossfit is a unique method of physical exercise founded on a specific set of underlying scientific principles. The ultimate goal of Crossfit is to maximize work potential across broad time and modal ...
Compact bends for multi-mode photonic crystal waveguides with high transmission and suppressed modal crosstalk
Nanophotonics photonic crystals Integrated optics devices Photonic crystal waveguides
2015/8/7
We demonstrate an extremely compact bend for a photonic crystal waveguide supporting three spatial modes. The bend exhibits nearly 100% transmission over a relative bandwidth of 1% with less than 1% c...
Upper Bound on the Modal Material Loss Rate in Plasmonic and Metamaterial Systems
Modal Material Loss Rate Plasmonic Metamaterial Systems
2015/8/7
A better understanding of optical loss in plasmonic and metamaterial systems is of increasing importance for both basic and applied research in a broad range of topics including sensors, antennas,opti...
Multi-Modal, Multi-Touch Interaction with Maps in Disaster Management Applications
Tabletop Multitouch Tangible Interaction Disaster Control Management Natural User Interfaces
2014/4/29
Multi-touch interaction has become popular in recent years and impressive advances in technology have been demonstrated, with the presentation of digital maps as a common presentation scenario. Howeve...
An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus
modal analysis eigenfrequency frequency dependent modulus
2014/5/19
The modulus of viscoelastic materials varies with excitation frequency.However,during modal analysis of frequency dependent materials,a material evaluation frequency is necessary because stiffness can...
Modal identification of Shanghai World Financial Center both from free and ambient vibration response
Field tests Modal identifi cation High-rise building Random decrement Hilbert–Huang transform
2014/4/10
The Shanghai World Financial Center (SWFC), a currently built super high-rise building, is located in Lujiazui area. The height of this 101-storey building is 492 m above ground. A set of dynamic @...
Real-Time Monitoring of the Modal Content of Monolithic Large-Mode-Area Fiber Lasers
Fiber characterization Lasers fiber Fiber Bragg gratings Fabry-Perot
2015/6/9
A method for the real-time monitoring of the modal content of a monolithic LMA fiber laser is reported for the first time. It allows for the direct observation of the dynamics of transversal mode comp...
10.3-Gb/s Operation over a Wide Temperature Range in 1.3-μm Quantum-dot DFB Lasers with High Modal Gain
Lasers distributed-feedback Quantum dot devices
2015/6/8
Temperature-stable 10.3-Gb/s operation was attained for 1.3-μm quantum-dot DFB lasers with high modal gain. Clearly-opened eye diagrams with the extinction ratio of over 5.2 dB were obtained from -40o...
Reducing Modal Noise in Short-Range Radio over Multimode Fibre Links
Fiber optics links subsystems Radio frequency photonics
2015/6/4
Reducing gain fluctuations in Short Range Radio over Multimode Fiber Links requires Central Launch. Furthermore, the quality of today’s optical connectors gives importance to the combined effect of fi...
考虑粘滑摩擦的时变振动系统模态参数辨识（Modal Parameter Identification of Time Varying Vibration Systems Subjected to Stick-slip Friction）
时变系统 模态参数 时变多变量Prony法
2010/1/28
将摩擦因素引入时变振动系统的模态辨识中。采用时变多变量Prony法，对振动系统的多输出响应信号建立时变多变量Prony模型，并利用递推最小二乘法估计模型参数，提取出振动系统的模态特征信息。数值仿真中，对含复合频率信号的频率进行了辨识，辨识值与理论值较好的吻合性验证了该方法的有效性。应用实例中，对平面两杆操作臂中的滑动质量块建立了考虑LuGre摩擦的运动方程，利用时变多变量Prony法辨识出含粘滑摩...