Results 191 to 200 of about 86,014 (287)

Unveiling the subsurface geological structure of the centre region, cameroon, with aeromagnetic data analysis. [PDF]

Sci Rep
Vihywuseh D, Tabod CT, Ndikum EN, Khan AR, Fuen DA.   +4 more
europepmc   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Different distribution patterns and potential risks of pesticide residues between soils and sediments: a case study in Lake Taihu Ecological Conservation Area. [PDF]

Environ Monit Assess
Hao Y, Bai M, Sun L, Yang S, Wang C, Li QX, Hammock BD, El-Sheikh EA, Xu T.   +8 more
europepmc   +1 more source

The impact of forced closure on proppant distribution of hydraulic fracturing in shale formations

Deep Underground Science and Engineering, EarlyView.
Research findings demonstrate that implementing forced closure within shale formations can remarkably mitigate proppant settlement, concurrently increasing the effective propped surface area from 29.74% to 38.68%. Abstract Forced closure is widely used in conventional oil and gas reservoirs to promote uniform proppant placement.
Tongxuan Gu, Hanyi Wang, Quan Gan, Shuang Zheng   +3 more
wiley   +1 more source

Phosphorus and potentially toxic elements in stream waters, sediments, mine tailings, and pines across Lake Anna watershed, VA, USA, and biochar-lime remediation. [PDF]

Environ Sci Pollut Res Int
Kohlhaas RT, Schroeder SE, Richardson JB.   +2 more
europepmc   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Microbial population structure along the water columns and sediments in the Diamantina and Kermadec trenches. [PDF]

BMC Biol
Xiao Y, Liu H, Wang P, Zhang Y, Wang F, Jing H.   +5 more
europepmc   +1 more source

U.S. Geological Survey Quality-Assurance Project for Sediment Analysis

Fact Sheet, 2000
John D. Gordon, Carla Newland
openaire   +2 more sources

Origin of Texas Red Beds [PDF]

, 1916
Baker, Charles Laurence
core  

Mechanistic insights across curing regimes for enzymatic and biopolymer‐optimized reinforcement in rock masses

Deep Underground Science and Engineering, EarlyView.
This study examines the effects of curing temperature on the mechanical behavior of underground rock masses treated with enzyme‐induced calcite precipitation (EICP) and an innovative biopolymer‐modified EICP (BP‐EICP). Abstract Biocementation is an innovative and sustainable technique for reinforcing weak and weathered rock masses in natural and ...
Mary C. Ngoma, Oladoyin Kolawole
wiley   +1 more source