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Estimation of aboveground biomass of Robinia pseudoacacia forest in the Yellow River Delta based on UAV and Backpack LiDAR point clouds
UAV-LiDAR Backpack-LiDAR Individual tree segmentation Forest AGB The Yellow River Delta
2024/1/22
Forest plantations are an important source of terrestrial carbon sequestration. The forest of Robinia pseudoacacia in the Yellow River Delta (YRD) is the largest artificial ecological protection fores...
EDF Energy’s new nuclear build megaproject at Hinkley Point C last Friday moved forward—or, more literally, upward then downward—when workers, with a substantial assist from Big Carl, the world’s larg...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The Development of Science: Past and Present What about the future? A publisher’s point of view
出版史 传播 人工智能
2023/12/11
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The Development of Science: Past and Present What about the future? A publisher’s point of view.
Classification of Mediterranean Shrub Species from UAV Point Clouds
Unmanned Aerial Vehicles (UAV) Digital Aerial Photogrammetry (DAP) machine learning deep learning point cloud labelling Mediterranean forest
2023/12/4
odelling fire behaviour in forest fires is based on meteorological, topographical, and vegetation data, including species’ type. To accurately parameterise these models, an inventory of the area of an...
Integrating UAV-SfM and Airborne Lidar Point Cloud Data to Plantation Forest Feature Extraction
UAV-ALS point cloud georeferencing improved ICP via invariant ground surface feature tree parameterization airborne lidar sensing UAV optical sensing sustainable timber production
2023/11/30
A low-cost but accurate remote-sensing-based forest-monitoring tool is necessary for regularly inventorying tree-level parameters and stand-level attributes to achieve sustainable management of timber...
Targeted introduction of heritable point mutations into the plant mitochondrial genome
plant mitochondrial genome heritable ALEN-GDM mtDNA genome editing CRISPR-Cas
2023/11/28
The development of technologies for the genetic manipulation of mitochondrial genomes remains a major challenge. Here we report a method for the targeted introduction of mutations into plant mitochond...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：On strongly quasiconvex functions: existence results and proximal point algorithms
强准孔函数 存在结果 近端点算法
2023/5/4
The class of strongly quasiconvex functions was introduced in the famous paper of B.T. Polyak in 1966. It is the natural extension of the class of strongly convex functions, its applications emcompass...
The 730-tonne reactor cavity precast pool has been installed in Hinkley Point C unit 1's reactor building, using the giant crane, called Big Carl. Meanwhile the final phase of the offshore work by the...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Some Exact Formulas of the KPZ Fixed Point and Directed Landscape
KPZ不动点 定向景观 精确公式
2023/4/18
In the past twenty years, there have been huge developments in the study of the Kardar-Parisi-Zhang (KPZ) universality class, which is a broad class of physical and probabilistic models including one-...
The USA's first-of-its-kind 1 MW demonstration scale, nuclear-powered clean hydrogen production facility has begun operating at Constellation's Nine Mile Point nuclear power plant in Oswego, New York....
The first new nuclear reactor for a UK power station in more than three decades has finished its journey - by barge and then road - at the Hinkley Point C site in Somerset in southwest England.
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Convergence analysis of one-point large deviations rate functions of numerical methods for stochastic wave equations with small noise
小噪声 随机波动方程 数值方法 单点大偏差率 函数收敛分析
2023/4/21
In this talk, we present the pointwise convergence of one-point large deviations rate functions (LDRFs) of the spatial finite difference method and further the fully discrete method based on the tempo...
有源光学微腔强耦合下的Diabolical Point（图）
有源光学 微腔 强耦合 Diabolical Point
2020/1/21
DP (Diabolical Point) 源于系统能级在参数空间中的偶然简并，具有正交的本征矢。由于DP的拓扑相位和特殊的能量色散关系，光学结构中的DP可以为研究拓扑光学或者量子拓扑性质提供新的思路和方法。同时，量子点等量子光源与光学微腔的耦合可以实现电子-光子相干交换的界面，是量子信息处理的重要载体。因此，如果在有源光学微腔中实现DP，则该系统就在可扩展化量子信息处理中有着广泛的应用前景。
Researchers identify starting point for drugs that cure Clostridium difficile（图）
Researchers starting point drugs Clostridium difficile
2020/1/19
A newly published paper in PNAS details a research breakthrough that provides a promising starting point for scientists to create drugs that can cure C. diff -- a virulen...
Tree Species Classification in a Highly Diverse Subtropical Forest Integrating UAV-Based Photogrammetric Point Cloud and Hyperspectral Data
tree species mapping tropical biodiversity imaging spectroscopy photogrammetry support vector machine
2024/2/4
The use of remote sensing data for tree species classification in tropical forests is still a challenging task, due to their high floristic and spectral diversity. In this sense, novel sensors on boar...