搜索结果: 1-10 共查到“安全科学技术 Detection”相关记录10条 . 查询时间(0.203 秒)
SAR COHERENCE CHANGE DETECTION OF URBAN AREAS AFFECTED BY DISASTERS USING SENTINEL-1 IMAGERY
SAR Coherence Change Detection Coherence maps Hurricane earthquake
2018/5/15
The study focuses on two study areas: San Juan in Puerto Rico, which was affected by Hurricane Maria in September 2017, and Sarpol Zahab in Iran, which was one of the towns affected by an earthquake i...
LANDSLIDE INVENTORY MAPPING FROM BITEMPORAL 10 m SENTINEL-2 IMAGES USING CHANGE DETECTION BASED MARKOV RANDOM FIELD
Landslide Inventory Mapping Change Detection Normalized Difference Vegetation Index Principal Component Analysis Markov Random Field Sentinel-2 Images
2018/5/15
Landslide inventory mapping is essential for hazard assessment and mitigation. In most previous studies, landslide mapping was achieved by visual interpretation of aerial photos and remote sensing ima...
RESEARCH ON AIRCRAFT TARGET DETECTION ALGORITHM BASED ON IMPROVED RADIAL GRADIENT TRANSFORMATION
Aircraft Target Detection Radial Gradient Transformation Rotation-Invariant Feature Polar Form Look-up Table
2018/5/17
Aiming at the problem that the target may have different orientation in the unmanned aerial vehicle (UAV) image, the target detection algorithm based on the rotation invariant feature is studied，and t...
DETECTION OF LANDSLIDES WITH SAR POLARYMETRY: CASE STUDY OF SOUTH-EASTERN COLOMBIA
Backscattering Coefficient Dispersion Mechanism Landslides Polarimetry SAR (PolSAR) Entropy – Alpha Parameter Classification Principal Component Analysis
2018/5/8
SAR polarimetry (PolSAR) is a method that can be used to investigate landslides. Polarimetric scattering power decomposition allows to separate the total power received by the SAR antenna, which is di...
Inspection Technology, Detection, and Compliance: Evidence from Florida Restaurant Inspection
Inspection technology PDA Regulation Detection Compliance Restaurant hygiene
2015/9/21
Many regulations mandate that government employees inspect economic entities on a regular
basis. In this paper, we show that a small innovation in inspection technology can make
substantial differ...
Outbreak Detection Of Spatio-Temporally Smoothed Crashes
Average Run Length Exponential Weighted Moving Averages Monitoring Spatial Outbreaks Spatio-Temporal Smoothing Crash Outbreaks
2013/1/28
Spatio-temporal surveillance methods for detecting outbreaks are common with the SCAN statistic setting the benchmark. If the shape and size of the outbreaks are known, then the SCAN statistic can be ...
A probabilistic damage detection approach using vibration-based nondestructive testing
Nondestructive testing Damage detection Vibration test Modal analysis Measurement error Modeling error Bayesian model updating
2012/4/26
With the aim of improving the accuracy of the assessment of existing structures, damage detection using vibration-based nondestructive testing (NDT) has been extensively studied. It has been recognize...
Research on Leakage Detection and Analysis of Leakage Point in the Gas Pipeline System
Leakage Detection Transient Simulation Leakage Location SCADA
2013/1/28
Recently, with large-scale use of natural gas and massive constructions of gas pipelines, more and more public concern is focused on pipeline leakage. The leakage caused by holes on gas pipelines gene...
field model for magnetic proximity detection systems
Magnetic proximity detection system Magnetic field generator Shell-based magnetic flux density model Warning zone Stop zone
2012/4/14
Several magnetic proximity detection systems have been developed for mining vehicles and mobile machinery to protect nearby workers. Magnetic field generators are often used in these systems to establ...
Research and application of comprehensive electromagnetic detection technique in spontaneous combustion area of coalfields
Spontaneous combustion area of coalfields High resolution earth resistivity method Transient electromagnetic method Detection
2012/3/27
Perplexed by severe disasters, spontaneous combustion areas of coalfields in China not only lose a large number of precious coal resources but damage the ecological environment badly. The premise of e...