Results 41 to 50 of about 10,506 (229)

Debris composition of the Yanchang Fm. in the southwestern margin of the Ordos basin.

open access: yes, 2015
Debris composition of the Yanchang Fm. in the southwestern margin of the Ordos basin.
Fang Shen (495200)   +4 more
core   +1 more source

Percutaneous microchannel unilateral approach bilateral micro decompression for adjacent segmental degeneration after lumbar fusion at 10 years: a case report and review of literature

open access: yesFrontiers in Surgery
BackgroundAdjacent segmental degeneration after lumbar fusion is one of the common long-term complications after lumbar fusion. With the continuous development of adjacent segmental degeneration, patients who fail conservative treatment often need ...
Tingxin Zhang   +4 more
doaj   +1 more source

Numerical investigation of natural fracture activation and leakage risk during CO2 sequestration in depleted sandstone reservoirs

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates the hydro‐mechanical response and fracture evolution in depleted sandstone reservoirs during CO2 injection, considering both direct wellbore injection and hydraulic‐fracture‐assisted injection. The graphical abstract illustrates how CO2 injection induces dynamic stress redistribution, leading to natural fracture activation ...
Haiyang Wang   +6 more
wiley   +1 more source

Vertical Wind Speed Extrapolation and Power Estimation via a Hybrid Physics-Data-Driven Approach

open access: yesEnergies
The scale mismatch between wind turbine hub heights and conventional meteorological masts introduces uncertainties in wind resource assessment. Vertical wind speed extrapolation serves as a critical technique to bridge this spatial gap.
Zongxuan Wu   +6 more
doaj   +1 more source

Comparison of outcomes between tubular microdiscectomy and conventional microdiscectomy for lumbar disc herniation: a systematic review and meta-analysis of randomized controlled trials

open access: yesJournal of Orthopaedic Surgery and Research, 2023
Purpose The clinical outcomes of using a tubular microdiscectomy for lumbar disc herniation were evaluated by comparison with conventional microdiscectomy.
Tingxin Zhang   +8 more
doaj   +1 more source

Locking Fe Single Atoms Into the Lattices of Mesoporous TiO2 Promotes Nitrogen Reduction

open access: yesEcoEnergy, EarlyView.
S‐coordinated Fe single‐atom catalysts on mesoporous TiO2 have been constructed by a universal lattice‐confined strategy. This catalyst shows a unique nanoconfinement effect for mass transfer and maximizes the active sites to mimic nitrogenase for ambient electrocatalytic N2 reduction reaction.
Danli Liang   +3 more
wiley   +1 more source

Quantitative Insights into Atomic Scale Oil–Clay Adhesion Governing Shale Oil Retention and Mobility

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Atomic force microscopy reveals a clear adhesion hierarchy between shale oil and clay minerals, governed by nanoscale surface chemistry. Strong interactions on chlorite and illite arise from abundant polar sites and cation bridging, whereas weaker coupling on montmorillonite limits interfacial binding.
Chen Lv, Guanwen Lu, Guandong Su
wiley   +1 more source

Hydrochemical characteristics and cause analysis of high fluoride groundwater in Zhuanlongwan coal mine

open access: yesMeikuang Anquan
In order to gain insight into the hydrochemical characteristics and formation mechanism of high fluoride groundwater in Zhuanlongwan Coal Mine, we conducted a comprehensive analysis of 48 samples including quaternary groundwater (QGW), sandstone ...
Junming QI   +7 more
doaj   +1 more source

Se‐Vacancy Engineering Enables Dual Electronic and Interfacial Regulation in SnSe2 Nanocatalysts for High‐Performance Lithium–Sulfur Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Se vacancies in SnSe2 induce local electron redistribution and create unsaturated Sn sites, enabling a switch from single‐site to dual‐site adsorption of lithium polysulfides. This structure synergistically enhances redox kinetics, accelerates sulfur conversion, suppresses the shuttle effect, reduces polarization, and significantly improves the ...
Xuejie Wang   +6 more
wiley   +1 more source

The eleven queens' Qos Ordos and the Imperial ancestral sacrifice under the Mongol-Yuan Dynasty [PDF]

open access: yes, 2018
This paper collects the Chinese sources and depicts the Qoš Ordo as a form of Ordo under the Mongol-Yuan Dynasty, referring to the ordos administrated by the deceased emperors’ widowed queens.
Ma Xiaolin, Xiaolin, Ma
core  

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