Results 21 to 30 of about 3,644,343 (298)

Distribution Characteristics and Ecological Risk Assessment of Heavy Metals in Soils from Jiulong Li-Be Mining Area, Western Sichuan Province, China

open access: yesYankuang ceshi, 2021
BACKGROUND The Jiulong area in western Sichuan is an important rare metal production area in China, which has a large resource potential. As an ecological protection barrier on the upper reaches of the Yangtze River, the ecological environment of this ...
YU Feng   +7 more
doaj   +1 more source

Development of a Protective Enclosure for Remote Sensing Applications—Case Study: Laser Scanning in Underground Coal Mines

open access: yesResources, 2020
Sensing for equipment location and mapping in explosion risk zones such as underground coal mines is a difficult proposition due to the regulatory requirement for certified protective enclosures to safely house the required complex electrical equipment ...
Mark Dunn, Peter Reid, John Malos
doaj   +1 more source

Predictive Prospecting Using Remote Sensing in a Mountainous Terrestrial Volcanic Area, in Western Bangongco–Nujiang Mineralization Belt, Tibet

open access: yesRemote Sensing, 2023
The Bangongco–Nujiang metallogenic belt of Tibet is a main suture zone in the Qinghai–Tibet Plateau, which is known as an important porphyry–epithermal–skarn Cu-polymetallic mineralization zone in China.
Longyang Bai   +6 more
doaj   +1 more source

Hydrochemical Prospecting and Its Application in Green Investigation for the Large Mineral Resource Base: A Case Study from Jiulong Area in Western Sichuan Province

open access: yesYankuang ceshi, 2021
BACKGROUND The 'Strategic Emerging Industry Mineral Investigation' project actively advocates the application of new theories and methods of green investigation in the exploration and development of large-scale resource bases.
YU Yang   +7 more
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Deep-penetrating geochemical techniques for concealed deposits covered by semi-humid grassland: Zhaishang gold deposit, Western Qinling Orogen, China

open access: yesScientific Reports
The Western Qinling Orogen (WQO) is a major gold region in China, with gold reserves exceeding 1, 200 tons. Its complex topography, climate, and semi-humid grassland cover provide an ideal setting for evaluating deep-penetrating geochemical (DPG) methods.
Yuying Huyan   +10 more
doaj   +1 more source

The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation

open access: yesProgress in Earth and Planetary Science, 2020
The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary ...
Xiao Chen   +4 more
doaj   +1 more source

A tunnel coaxial 3D hyperspectral scanning system for underground mine investigation

open access: yesScientific Reports, 2023
A hyperspectral scanning system was developed for three-dimensional (3D) surface mapping in underground spaces, such as mine shafts and tunnels. A hyperspectral line-scanning camera was mounted on the rotating driver unit coaxial with the tunnel to image
Hyunseob Baik   +2 more
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

open access: yesFEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain   +11 more
wiley   +1 more source

Discovery of stromatolite formation in post-impact hydrothermal lacustrine environments and its implications for early Earth

open access: yesCommunications Earth & Environment
Understanding asteroid-collision-generated extreme environments, including hydrothermal activity, is crucial for gaining insights into biological evolution on the early Earth.
Jaesoo Lim   +14 more
doaj   +1 more source

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