Results 61 to 70 of about 185 (80)

Properties of ecological environment damage and their mechanism of restoration in arid and semi-arid coal mining area of western China [PDF]

open access: yes
The focus of coal development in China has been strategically shifted westward. That realize green mining of coal resources and coordinated ecological development becomes one of the important measures to ensure national energy security.
Suping PENG, Yinli BI
core   +1 more source

露天煤矿区不同生态措施对紫穗槐水分利用特征的影响

open access: yesShuitu Baochi Xuebao
[目的] 为探究排土场不同生态措施下典型植物的水分利用特征,提高植物水分利用效率,加速矿区生态恢复进程。[方法] 以黑岱沟煤矿排土场6种生态措施(对照、接菌、绿肥、接菌+绿肥、绿肥+风化煤、接菌+绿肥+风化煤)下紫穗槐为对象,结合水的氢氧稳定同位素等方法分析。[结果] (1)排土场土壤含水率为3%~9%,在0—30,70—100 cm土层较低,在30—70 cm土层较高。(2)紫穗槐的水分供给来源于降水和土壤水,土壤水分在0—30 cm土层发生显著的分馏现象,且在不同生态措施表现出显著差异,绿肥处理最大,
毕银丽, 柯增鸣, 高学江
doaj  

Optimization of shotcrete manipulator motion trajectory based on AIWCPSO algorithm [PDF]

open access: yes
To address issues in traditional shotcrete manipulator trajectory planning algorithms, such as abrupt transitions between multiple path segments and low shotcrete efficiency and uniformity caused by frequent starts and stops, an optimized motion ...
HU Qiaowei   +6 more
core   +1 more source

Improvement of point cloud feature extraction and alignment algorithms and lidar slam in coal mine underground [PDF]

open access: yes
LiDAR SLAM faces challenges in the narrow and confined unstructured environment of underground coal mines, where inaccurate point cloud pose estimation due to few or complex features can result in distortion or even map construction failure.
Guanghui XUE   +3 more
core   +1 more source

[Risk Factors of Lung Cancer in Xuanwei, Yunnan Province, China]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi, 2017
Liu L   +5 more
europepmc   +1 more source

一种露天矿卡车实时调度算法 [PDF]

open access: yes, 2007
给出单斗卡车工艺的露天矿中分时段卡车实时调度系统的设计思路;扼要阐述主模块与各分模块的关系及各模块的功能和任务;特别解释了装车区间 ...
刘海娟, 姚再兴, 白润才
core  

An integrated ecosystem monitoring technology for coal mining subsidence areas and its application in the Shendong mining area [PDF]

open access: yes
BackgroundThe ecosystem monitoring of arid and semi-arid coal mining subsidence areas acts as a significant prerequisite for regional ecosystem conservation and management, holding critical significance for accelerating green mine construction ...
Chengye ZHANG   +6 more
core   +1 more source

[Study on the Relationship between the Inhalable Fine Particulate Matter of Xuanwei Coal Combustion and Lung Cancer]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi, 2015
Yang J   +8 more
europepmc   +1 more source

[Molecular epidemiology study in Xuanwei: the relationship among 
coal type, genotype and lung cancer risk]. [PDF]

open access: yesZhongguo Fei Ai Za Zhi, 2015
Li J   +7 more
europepmc   +1 more source

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