搜索结果: 16-30 共查到“工学 Tunnel”相关记录49条 . 查询时间(0.09 秒)
BUILDING A 3D REFERENCE MODEL FOR CANAL TUNNEL SURVEYING USING SONAR AND LASER SCANNING
3D Bathymetry Data processing and 3D Modeling Reference control and accuracy assessment
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2015/4/23
Maintaining canal tunnels is not only a matter of cultural and historical preservation, but also a commercial necessity and a security issue. This contribution adresses the problem of building a full ...
Baseline mapping of sediment distribution in the Western Scheldt estuary prior to tunnel boring
Remote Sensing Mathematical models Measurement Synergy Monitoring SPOT Ecosystems
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2015/2/5
Large infrastructural construction projects may have a profound impact on the environment and ecology of
environmentally sensitive areas. The construction of a tunnel below the Western Scheldt and th...
Wind Tunnel Test Program Of A 200-Watt 12-Volt Wind Generator System. Final Report
Wind Tunnel Test Program A 200-Watt 12-Volt Wind Generator System
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2014/10/21
Wind Tunnel Test Program Of A 200-Watt 12-Volt Wind Generator System. Final Report.
Efficient point cloud collision detection and analysis in a tunnel environment using kinematic laser scanning and K-D Tree search
Collision Detection K-D Tree Kinematic Laser Scanning 3D Point Clouds
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2014/9/9
Measuring the structure gauge of tunnels and other narrow passages has so far been the only way to evaluate whether large vehicles can pass through them. But especially for very long vehicles like tra...
Failure Mechanism of Mountain Tunnel Cutting Face
Failure Mechanism Mountain Tunnel Cutting Face
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2013/9/30
A space generates inside the ground by tunnel excavation and so the stress inside the ground surrounding the tunnel would change. This re-arrangement of stress has been investigated by so-called "trap...
DOCUMENTATION AND VISUALIZATION OF AN AS-BUILT TUNNEL BY COMBINING 3D LASER SCANNING AND WEB MAPPING
Laser scanning, underground construction, mapping
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2014/4/21
A new way to document and visualize the as-built condition of an urban tunnel project with high accuracy is described in this paper,
based on recent developments of laser scanning technology. In tra...
Road and Tunnel Extraction from SPOT Satellite Images Using Neural Networks
Neural Networks Road Classification Texture
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2013/3/5
Road extraction from the satellite images can be used in producing road maps as well as managing and developing geospatial databases. In this work, the extraction of roads from SPOT satellite images u...
A NOVEL IMAGE ACQUISITION AND PROCESSING PROCEDURE FOR FAST TUNNEL DSM PRODUCTION
DEM/DTM Restitution Automation Orthoimage Close Range Photogrammetry
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2014/4/28
In mining operations the evaluation of the stability condition of the excavated front are critic to ensure a safe and correct planning of the subsequent activities. The procedure currently used to thi...
A NEW APPROACH FOR SUBWAY TUNNEL DEFORMATION MONITORING: HIGH-RESOLUTION TERRESTRIAL LASER SCANNING
Terrestrial Laser Scanning deformation monitoring subway tunnel high precision moving least squares
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2014/4/28
With the improvement of the accuracy and efficiency of laser scanning technology, high-resolution terrestrial laser scanning (TLS) technology can obtain high precise points-cloud and density distribut...
CONTINUOUSLY DEFORMATION MONITORING OF SUBWAY TUNNEL BASED ON TERRESTRIAL POINT CLOUDS
Deformation Monitoring Vertical Section Quadric Fitting Random Sample Consensus Terrestrial Laser Scanner (TLS)
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2014/4/28
The deformation monitoring of subway tunnel is of extraordinary necessity. Therefore, a method for deformation monitoring based on terrestrial point clouds is proposed in this paper. First, the tradit...
CONTINUOUSLY DEFORMATION MONITORING OF SUBWAY TUNNEL BASED ON TERRESTRIAL POINT CLOUDS
Deformation Monitoring Vertical Section Quadric Fitting Random Sample Consensus Terrestrial Laser Scanner (TLS)
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2014/4/28
The deformation monitoring of subway tunnel is of extraordinary necessity. Therefore, a method for deformation monitoring based on terrestrial point clouds is proposed in this paper. First, the tradit...
Coexistance of giant tunneling electroresistance and magnetoresistance in an all-oxide magnetic tunnel junction
Coexistance giant tunneling electroresistance magnetoresistance all-oxide magnetic tunnel junction
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2012/2/24
We demonstrate with first-principles electron transport calculations that large tunneling magnetoresistance (TMR) and tunneling electroresistance (TER) effects can coexist in an all-oxide device. The ...
The impact of tunnel design and lighting on the performance of attentive and visually distracted drivers
Tunnel Driving performance Distraction Illumination Design Visual load Secondary task
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2012/4/26
The crash risk in tunnels is lower than on the open road network, but the consequences of a crash are often severe. Proper tunnel design is one measure to reduce the likelihood of crashes, and the obj...
Measurements of Gaseous Pollutant Concentrations in the Hsuehshan Traffic Tunnel of Northern Taiwan
Tunnel air quality Hsuehshan tunnel CO NOx Vertical draft
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2016/3/28
Concentrations of carbon monoxide (CO) and nitrogen oxides (NOx) were measured from 14–17 November 2008 in a
cross-mountain Hsuehshan traffic tunnel stretching 12.9 km and containing eastward and wes...
Radio over Fiber tunnel for 60 GHz wireless Home Network
Fiber optics optical communications Fiber optics communications
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2015/5/26
60GHz radio coverage is extended by using RoF at intermediate frequency with two hops in the air. MMF and low-cost photonics are used. Real-time transmission between two commercial Wireless-HD devices...