Results 61 to 70 of about 18,595 (261)

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

Energy Science &Engineering, Volume 14, Issue 3, Page 1626-1662, March 2026.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou, Wenchao Jiang, Xiaolin Wu, Jian Gai, Liqiang Zheng, Jie Chen, Shuanghua Wang, Shouliang Lu, Bin Huang, Jichao Sun, Long Su   +10 more
wiley   +1 more source

Multidisciplinary Analyses of Terrestrial Samples Used to Interpret an Inorganic Origin (Anhydrite:Ce3+) for the 304 and 325‐nm Doublet Fluorescence Detected by the Mars 2020 SHERLOC Instrument at Jezero Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Doublet fluorescence at 304 and 325‐nm under deep ultraviolet (DUV) excitation was detected on Mars at Jezero crater by the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument onboard the Mars 2020 rover Perseverance.
N. C. Haney, R. V. Morris, R. S. Jakubek, J. V. Clark, J. I. Simon, W. P. Buckley, R. T. Downs, E. B. Rampe, R. M. G. Armytage, T. G. Graff, A. S. Burton, F. M. McCubbin, E. L. Berger, V. M. Tu, P. D. Casbeer, S. A. Mertzman, K. H. Williford, E. L. Scheller, T. Fornaro, S. Siljeström, A. Steele, K. P. Hand, T. J. Lapen   +22 more
wiley   +1 more source

Structural studies on Miocene kerogen [PDF]

Fuel, 1988
The different characteristics of organic matter in Miocene sediment from Portazgo (Madrid, Spain) were studied by several physicochemical techniques. Then g.c.-m.s. was applied to bitumen and to oxidative degradation products of the insoluble organic residue.
Almendros Martín, Gonzalo, González-Vila, Francisco Javier, Martín Martínez, Francisco, Álvarez Ramis, Concepción   +3 more
openaire   +2 more sources

Influence of liquid-nitrogen freezing of gas-bearing shale rocks on their compressive strength [PDF]

, 2018
Any definable relation between falling temperature and the compressive strength of shale rocks should provide a useful predictive tool aiding optimization of the results of hydraulic fracturing.
Jarosz, Kinga
core   +1 more source

Organoclay interaction response to sedimentary environment and sources in Paleogene shales from the Nanpu Sag: Insights for organic matter accumulation mechanism

The Depositional Record, Volume 12, Issue 1, February 2026.
The deep paleo‐lake, characterised by low energy and moderate salinity, facilitated the input of fine‐grained minerals and the development of aquatic organic matter. Under the combined influence of the sedimentary environment and material source, mineral‐bound organic matter was formed, which played a crucial role in the enrichment of organic matter ...
Rusi Zuo, Jingong Cai, Wei Duan, Xiang Zeng, Jinyi He, Chuan Cai, Qianyou Wang   +6 more
wiley   +1 more source

Mechanism of adsorption-desorption hysteresis of shale gas in kerogen and influencing factors analysis

Youqi dizhi yu caishoulu
The adsorption behavior of methane in kerogen is of great significance for shale gas reserve evaluation and production prediction. However， there is still a lack of clear understanding of the hysteresis phenomenon and its micro-causes in the process of ...
TANG Haijun, QIU Xingdong, LIU Yisheng, DAI Xia, TANG Cong, HUANG Liang, WANG Lei   +6 more
doaj   +1 more source

Linking palaeo‐wildfire to depositional environmental and ecological dynamics of an Early–Middle Pennsylvanian fluvial‐tidal transition zone—Palynology and pyrolysis evidence

The Depositional Record, Volume 12, Issue 1, February 2026.
The Pennsylvanian landscape in the Forest City basin was characterised by low‐lying lycopod tree and fern swamp forests with persistently high groundwater tables and adjacent fluvial channel, floodplain and upland environments. The occurrence of abundant charcoal within a specific thin interval in the Cherokee Group indicates substantial wildfire ...
Dustin Northrup, Emily Finzel, Pierre Zippi, Kevin Bohacs   +3 more
wiley   +1 more source

Combustion Analysis of a Meteorite Debris [PDF]

, 2010
In this research paper, nature and origins of a meteorite debris identified near village Lehri in district Jhelum, Pakistan have been determined. Total carbon content of a specimen of the meteorite debris is determined using combustion analysis and this ...
Saheeb Ahmed Kayani
core   +3 more sources

Iron–Phosphorus–Carbon Coupled Cycling in Lacustrine System of Ordos Basin During the Middle Triassic

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Widespread organic‐rich shales are associated with perturbations in productivity or preservation conditions; however, the major controlling factors, especially the phosphorus (P) and iron (Fe) interactions and their impacts on organic carbon burial in the paleolake ecosystem remain poorly understood.
Bo Wang, Rukai Zhu, Pengcheng Ju, Quanyou Liu, Weiming Xu, Peng Li, Wang Zhang, Xinping Liang   +7 more
wiley   +1 more source

Optical constraints of kerogen from 0.15 to 40 microns: Comparison with meteoritic organics [PDF]

, 1990
Kerogens are dark, complex organic materials produced on the Earth primarily by geologic processing of biologic materials, but kerogens have chemical and spectral similarities to some classes of highly processed extraterrestrial organic materials ...
Arakawa, E. T., Gilmour, I., Khare, Bishun N., Meisse, C., Sagan, C., Thompson, W. R.   +5 more
core   +1 more source