نتایج جستجو برای: surface mines

تعداد نتایج: 641844  

2015
Yan ZHANG Mingming FENG Jianying YANG Tingning ZHAO Hailong WU Changqing SHI Yi SHEN

Zhang Y., Feng M.M., Yang J.Y., Zhao T.N., Wu H.L., Shi C.Q., Shen Y. (2015): Effects of soil cover and protective measures on reducing runoff and soil loss under artificial rainfall. Soil & Water Res., 10: 198–205. The hazards from wind, sand, and soil erosion caused by human activities, such as residue slopes in abandoned urban mines, have resulted in a vicious circle of environmental degrada...

Journal: :IEEE Trans. Geoscience and Remote Sensing 2001
Waymond R. Scott James S. Martin Gregg D. Larison

A laboratory-scale experimental model has been developed and tested for a system that uses artificially generated high-frequency seismic waves in conjunction with a radar-based noncontact displacement sensor to detect buried landmines. The principle of operation of the system is to measure the transient displacement field very close to a mine location. In this way, the absorption and the geomet...

2015
P. SHIREESHA P. KRISHNA RAO

This paper presents a low power, cost-effective, And Zigbee protocol based wireless sensor network that provides an intelligent surveillance and safety system for underground coal mines. The system consists of wireless connection of several nodes. Sensor node mainly consists of Zigbee protocol based low power CC2530 transceiver integrated with a high performance, low power microcontroller on si...

Journal: :Frontiers in Environmental Science 2021

The Liupanshui Minghu Wetland is a typical artificial urban wetland in plateau mining region. It important to identify the sources and potential ecological risks of heavy metal contaminants its surface sediments monitor downstream water quality prevent pollution. In this study, we measured concentrations six toxic metals (Pb, Zn, Cr, Cu, Ni, Cd) collected from Wetland. Further, geological accum...

2011
MARK A. HAYES

In western United States, both mine reclamations and renewed mining at previously abandoned mines have increased substantially in the last decade. This increased activity may adversely impact bats that use these mines for roosting. Townsend’s big-eared bat (Corynorhinus townsendii) is a species of conservation concern that may be impacted by ongoing mine reclamation and renewedmineral extractio...

2015
Christina Locke Yanguang Chen

Shifting markets can cause unexpected, stochastic changes in rural landscapes that may take local communities by surprise. Preferential siting of new industrial facilities in poor areas or in areas with few regulatory restrictions can have implications for environmental sustainability, human health, and social justice. This study focuses on frac sand mining-the mining of high-quality silica san...

2015
D. Chicot H. Ageorges M. Voda Ben Dhia

a Laboratoire de Mécanique de Lille, LML, UMR 8107, UST Lille, IUT A GMP, BP 90179, 59 653 Villeneuve d'Ascq, France b Universidad EAFIT, Applied Electromagnetism Research Group, Cra. 49 No. 7 sur 50, Medellin, Colombia c Centre Européen de la Céramique (CEC), Laboratoire Sciences des Procédés Céramiques et de Traitements de Surface (SPCTS), 12 rue Atlantis, 87068 Limoges, France d “Politehnica...

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