Results 121 to 130 of about 5,450,756 (255)

Provenance, redox conditions, and diagenesis of shales in Chang 7 member of Upper Triassic Yanchang Formation, Ordos Basin, China [PDF]

open access: yes, 2019
“This study aims to decipher provenance, redox conditions, and burial history of shales in Chang 7 Member of Upper Triassic Yanchang Formation, Ordos Basin, China.
Sun, Bin
core   +1 more source

Volcanic ash drives contrasting redox shifts and biogeochemical feedbacks in ancient marine and lacustrine systems [PDF]

open access: yes
Funding: This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 42325101, 42401182), the Fundamental Research Funds for the Central Universities (Grant No.
Bai, Edith   +9 more
core   +1 more source

Efforts to untie the multicollinearity knot and identify factors controlling macropore structures in shale oil reservoirs [PDF]

open access: yes
Traditional correlation analyses based on whole-rock data have limitations in discerning pore development determinants in shale oil reservoir, given the complex lithology of shale formations and intricate interdependencies (multicollinearity) among ...
Dong, Lin   +5 more
core   +1 more source

Improving classifications for cardiac autonomic neuropathy using multi-level ensemble classifiers and feature selection based on random forest

open access: yes, 2012
This paper is devoted to empirical investigation of novel multi-level ensemble meta classifiers for the detection and monitoring of progression of cardiac autonomic neuropathy, CAN, in diabetes patients.
Abawajy, J.   +4 more
core  

Optimization of fracturing fluid to increase shale gas production [PDF]

open access: yes, 2020
As same as other countries in the world, China is also facing the problem of a severe shortage of energy. Specifically, the demand for natural gas is rising explosively after the energy consumption structure has changed from oil to gas.
Liu, Yong
core   +1 more source

Identification of Oil Vertical Migration Through Tectonic Fractures: A New Insight into the Oil Migration Process in the Central Ordos Basin, China

open access: yesEnergies
Identifying oil migration through tectonic fractures in stable cratons is always challenging due to limited technical approaches. Here, we provide a case study showing that combined geochemical and geological analyses are a robust tool for identifying ...
Yiwei Ren   +7 more
doaj   +1 more source

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