搜索结果: 1-15 共查到“理学 Road”相关记录49条 . 查询时间(0.203 秒)
Road salts are threatening world's freshwater supplies（图）
Road salts threatening world freshwater supplies
2021/4/23
When winter storms threaten to make travel dangerous, people often turn to salt, spreading it liberally over highways, streets and sidewalks to melt snow and ice.However, a new study led by Sujay Kaus...
ROAD DAMAGE EXTRACTION FROM POST-EARTHQUAKE UAV IMAGES ASSISTED BY VECTOR DATA
Road damage extraction Damage assessment Earthquake UAV images Object-oriented classification Threshold detection
2018/5/11
Extraction of road damage information after earthquake has been regarded as urgent mission. To collect information about stricken areas, Unmanned Aerial Vehicle can be used to obtain images rapidly. T...
AUTOMATIC EXTRACTION OF ROAD MARKINGS FROM MOBILE LASER-POINT CLOUD USING INTENSITY DATA
Laser Scanning Road Marking Point Cloud High Precision Map Adaptive Threshold Segmentation
2018/5/16
With the development of intelligent transportation, road’s high precision information data has been widely applied in many fields. This paper proposes a concise and practical way to extract road marki...
Winter Road Salt,Fertilizers Turning North American Waterways Increasingly Saltier（图）
Winter Road Salt Fertilizers Turning North American Waterways Increasingly Saltier
2018/1/10
Across North America, streams and rivers are becoming saltier, thanks to road deicers, fertilizers and other salty compounds that humans indirectly release into waterways. At the same time, freshwater...
New genomic insights reveal a surprising two-way journey for apple on the Silk Road（图）
New genomic two-way journey apple the Silk Road
2017/9/5
Centuries ago, the ancient networks of the Silk Road facilitated a political and economic openness between the nations of Eurasia. But this network also opened pathways for genetic exchange that shape...
偏微分方程国际会议-丝路数学中心系列国际会议（International Conference on partial differential equations - International Conference on the mathematics of the Silk Road Series）
偏微分方程 国际会议 丝路数学中心 国际会议
2017/4/6
It is our great honour to welcome you to the International Conference on Partial Differential Equations-Silkroad Mathematics Center Series International Conferences, hosted jointly by the Chinese Math...
ON THE USE OF AIRBORNE LASER SCANNING DATA TO VERIFY AND ENRICH ROAD NETWORK FEATURES
LIDAR Surface Parameter Extraction Detection
2015/8/13
High-resolution digital terrain models (DTM) provide accurate descriptions of our surrounding with respect to its 2.5D shape.
Besides that existing cartographic databases provide detailed 2D represe...
Improving overland flow routing by incorporating ancillary road data into Digital Elevation Models
Watershed Delineation Road Geographic Information System GIS Flow Direction Digital Elevation Model DEM Hydrological Modeling
2015/8/6
Roads, ditches, and culverts influence hydrological and geomorphological processes significantly. However, most hydrological models continue to rely solely on regional digital elevation models (DEMs) ...
A Watery Road to Critical Thought: Oceanography's Place in Science Education
Science Education Oceanography's Place
2015/7/29
My greatest professional joy for more than three decades has been teaching general oceanography to students not majoring in science. Science education and science students have changed substantially o...
压制空间非平稳地震勘探随机噪声的ROAD径向时频峰值滤波算法
空间非平稳随机噪声 绝对级差统计量
2015/7/27
径向时频峰值滤波算法是一种有效保持低信噪比地震勘探记录中反射同相轴的随机噪声压制方法,但该算法对空间非平稳地震勘探随机噪声压制效果不理想.本文研究空间非平稳地震勘探随机噪声,即各道噪声功率不同的地震勘探随机噪声,其在径向滤波轨线上表征近似脉冲噪声,在径向时频峰值滤波过程中干扰相邻道滤波结果.为了减小空间非平稳随机噪声的影响,本文提出一种基于绝对级差统计量(ROAD)的径向时频峰值滤波随机噪声压制方...
Travelling along the Silk Road: A new interpretation of Ptolemy’s coordinates
Travelling along the Silk Road Ptolemy’s coordinates
2015/3/26
Starting from the assumption that Ptolemy worked with a value for the circumference of the Earth that was much too small, his coordinates may be recalculated for the circumference measured by Eratosth...
Improving overland flow routing by incorporating ancillary road data into Digital Elevation Models
Watershed Delineation Road
2015/1/4
Roads, ditches, and culverts influence hydrological and geomorphological processes significantly. However, most hydrological models continue to rely solely on regional digital elevation models (DEMs) ...
Geochemistry and Inorganic Carbon Transport of a Glacial Till Drumlin at a Road Salt Facility
road salt total dissolved inorganic carbon transport
2014/10/31
Investigations were conducted at a salt/premix storage facility lying on top of a glacial drumlin near the coastline in eastern Massachusetts, to characterize salt contaminated groundwater. Groundwate...
Clay Mineral Characterisation as a Durability Indicator for Basic Igneous Rock Road Aggregates
Clay Mineral Characterisation Durability Indicator Basic Igneous Rock Road Aggregates
2012/3/14
Clay Mineral Characterisation as a Durability Indicator for Basic Igneous Rock Road Aggregates.
The subject Introduced the analysis method of the black-spot, established the black-spot discriminant model, And gave its algorithm. According to the characteristics of China's traffic flow, we develo...