Results 31 to 40 of about 13,286,818 (399)

Dynamic Pore‐Scale Dissolution by CO2‐Saturated Brine in Carbonates: Impact of Homogeneous Versus Fractured Versus Vuggy Pore Structure

Water Resources Research, 2020
Limestone pore structure strongly influences dissolution and associated reactive transport. These effects are critical in limestone diagenesis and but also in engineering operations such as carbon capture and storage (CCS).
Yongfei Yang, Yingwen Li, Jun Yao, S. Iglauer, L. Luquot, Kai Zhang, Hai Sun, Lei Zhang, Wenhui Song, Zhiyu Wang   +9 more
semanticscholar   +1 more source

A tight sandstone trapezoidal pore oil saturation model

Petroleum Exploration and Development, 2017
: “Non-Archie” phenomena are common in tight sandstone reservoirs with complicated pore structure, bringing challenges to the logging evaluation of tight sandstone.
Shengfu HU, Cancan ZHOU, Xia LI, Chaoliu LI, Shengqiang ZHANG   +4 more
doaj   +1 more source

Study on pore fractal characteristics of acidified coal samples based on low temperature nitrogen experiment

Meikuang Anquan, 2021
In order to study and improve the pore structure characteristics of mineral-rich coal, the content of carbonate minerals and pore structure parameters of lean coal before and after acidification were measured based on X-ray diffraction and low ...
JIA Nan
doaj   +1 more source

Poring over exosome structure [PDF]

EMBO reports, 2010
The authors analyse the eukaryotic exosome structure, published in EMBO reports, in light of the known archaeal and prokaryotic exosomes, and discuss its striking flexibility and the conservation of the RNA channelling mechanism.
Ambro van Hoof, Borislava Tsanova
openaire   +3 more sources

Evaluating methods for logging the pore structure of tight sandstone reservoir in Chang 6 member of the Yanchang Formation, Ordos Basin [PDF]

Archives of Civil Engineering
Pore structure is a key parameter used to evaluate reservoir quality. At present, experimental method is the most important method to analyze reservoir pore structure.
Gaorun Zhong, Yajun Li, Yuhan Tan
doaj   +1 more source

A review of shale pore structure evolution characteristics with increasing thermal maturities

Advances in Geo-Energy Research, 2020
Pore structure has a significant effect on the occurrence state of shale hydrocarbons and the hydrocarbon storage capability of shale reservoirs. Consequently, it is quite meaningful to clarify the shale pore structure evolution characteristics for ...
Zhiye Gao, Fan Yupeng, Xuan Qixiang, Guowei Zheng   +3 more
semanticscholar   +1 more source

Structural insights into Clostridium perfringens delta toxin pore formation [PDF]

, 2013
Clostridium perfringens Delta toxin is one of the three hemolysin-like proteins produced by C. perfringens type C and possibly type B strains. One of the others, NetB, has been shown to be the major cause of Avian Nectrotic Enteritis, which following the
AGW Leslie, AH Nguyen, AJ McCoy, Ajit K. Basak, AL Keyburn, Andrea Motta, AP Heuck, AR Cole, B Geny, B Walker, C Jolivet-Reynaud, C Jolivet-Reynaud, C Jolivet-Reynaud, C Jolivet-Reynaud, C Potrich, CG Savva, Christos G. Savva, CL Hatheway, Claire E. Naylor, DC Briggs, DL Theobald, DL Theobald, E Krissinel, F Meyer, G Menestrina, J Huyet, J Rossjohn, JD Pedelacq, JD Thompson, JE Alouf, Jessica Huyet, JM Cavaillon, K Yamashita, L Jayasinghe, L Song, M Fivaz, M Manich, Maryse Gibert, MD Winn, Michel R. Popoff, N Monma, N Stein, O Knapp, P Emsley, P Evans, P Gouet, PV Afonine, R Olson, RK Tweten, S De, S Schwarz, S Sonnino, V Guillet, V Steinthorsdottir, VB Chen, VT Nguyen, Y Moran, Y Tanaka   +57 more
core   +5 more sources

EFFECTS OF FINENESS AND CONTENT OF PHOSPHORUS SLAG ON CEMENT HYDRATION, PERMEABILITY, PORE STRUCTURE AND FRACTAL DIMENSION OF CONCRETE

, 2020
The utilization of phosphorus slag (PHS) to replace the fly ash in the construction of hydraulic projects has attracted a growing attention in China.
Lei Wang, Ruyi Luo, Wei Zhang, Minmin Jin, Shengwen Tang   +4 more
semanticscholar   +1 more source

Nuclear Pore Complex Structure [PDF]

Developmental Cell, 2004
Nuclear pore complexes (NPCs) are large protein assemblies embedded in the nuclear envelope that act as passageways for transport of molecules into and out of the nucleus. Two new studies, one in Nature Cell Biology and one in Science , offer direct evidence that the NPC is a highly dynamic structure.
openaire   +4 more sources

Multifractal analysis of discretized X-ray CT images for the characterization of soil macropore structures [PDF]

, 2010
A correct statistical model of soil pore structure can be critical for understanding flow and transport processes in soils, and creating synthetic soil pore spaces for hypothetical and model testing, and evaluating similarity of pore spaces of different ...
Caniego Monreal, Francisco, García-Gutiérrez Baez, Carlos, Guber, Andrey, Martin Martin, Miguel Angel, Pachepsky, Yakov, San Jose Martinez, Fernando, Tuller, Markus   +6 more
core   +3 more sources