Results 11 to 20 of about 124,745 (257)

Correction: In Vitro BBB triculture assay and preliminary computational model development to predict brain exposure [PDF]

Frontiers in Toxicology
Zhuangyan Monica Xu, James P. Sluka, Charlie C. Zhang, Gregory Knipp   +3 more
doaj   +2 more sources

Cyclic confining pressure and rock permeability: Mechanical compaction or fines migration

Heliyon, 2023
The apparent rocks permeability, measured under cyclic loading, tends to constantly decrease with each subsequent loading/unloading cycle, the main reason for this, the researchers consider irreversible deformations.
Evgenii Vasilevich Kozhevnikov, Mikhail Sergeevich Turbakov, Evgenii Pavlovich Riabokon, Evgenii Aleksandrovich Gladkikh, Vladimir Valerevich Poplygin   +4 more
doaj   +1 more source

A Model for the Apparent Gas Permeability of Shale Matrix Organic Nanopore Considering Multiple Physical Phenomena

Frontiers in Earth Science, 2022
The flow of shale gas in nano scale pores is affected by multiple physical phenomena. At present, the influence of multiple physical phenomena on the transport mechanism of gas in nano-pores is not clear, and a unified mathematical model to describe ...
Wei Guo, Xiaowei Zhang, Rongze Yu, Lixia Kang, Jinliang Gao, Yuyang Liu   +5 more
doaj   +1 more source

A Novel Equivalent Numerical Simulation Method for Non-Darcy Seepage Flow in Low-Permeability Reservoirs

Energies, 2022
The low permeability and submicron throats in most shale or tight sandstone reservoirs have a significant impact on microscale flow. The flow characteristics can be described with difficultly by the conventional Darcy flow in low-permeability reservoirs.
Hui Xu, Nannan Liu, Yan Chen, Yapeng Tian, Zhenghuai Guo, Wanjun Jiang, Yanfeng He   +6 more
doaj   +1 more source

Apparent Water Permeability As A Physiological Parameter In Crustaceans [PDF]

Journal of Experimental Biology, 1996
ABSTRACT This article reviews the use of apparent water permeability (AWP) calculated from measurements of isotope-labelled water flux as a physiological estimate of whole-body water permeability in aquatic invertebrates. The rationale and practices of AWP calculations are described in an Appendix.
Rasmussen, A.D., Andersen, Ole
openaire   +3 more sources

Study on Apparent Permeability Model for Gas Transport in Shale Inorganic Nanopores

Energies, 2022
Inorganic nanopores occurring in the shale matrix have strong hydrophilicity and irreducible water (IW) film can be formed on the inner surface of the pores making gas flow mechanisms in the pores more complex. In this paper, the existence of irreducible
Shuda Zhao, Hongji Liu, Enyuan Jiang, Nan Zhao, Chaohua Guo, Baojun Bai   +5 more
doaj   +1 more source

Coupling effects of temperature, confining pressure, and pore pressure on permeability and average pore size of Longmaxi shale

Deep Underground Science and Engineering, 2023
The evolution due to temperature and pressure of shale reservoir permeability affects the productivity evaluation and development decision of shale gas reservoirs, which is very important for the exploration and development of unconventional gas ...
Xiaoyan Zhang, Hongsen Li, Xue Tan, Guoliang Li, Hua Jiang   +4 more
doaj   +1 more source

Evolution mechanism of shale microfracture apparent permeability considering dynamic slippage

Meitan kexue jishu, 2023
In order to study the evolution mechanism of microfracture apparent permeability under the effect of effective stress, gas adsorption and slip effect during shale-gas extraction, the fractal theory was used to characterize the total gas flow in ...
Yunna DING, Bobo LI, Qiaoyun CHENG, Shulei DUAN, Haosheng SONG   +4 more
doaj   +1 more source

Determination of the Dissolution/Permeation and Apparent Solubility for Microencapsulated Emamectin Benzoate Using In Vitro and Ex Vivo Salmo salar Intestine Membranes

Pharmaceuticals, 2022
In this work, two microencapsulation techniques were used to protect and improve the absorption of emamectin benzoate (EB), which is an antiparasitic drug used to control Caligus rogercresseyi.
Victoria Molina, Carlos von Plessing, Alex Romero, Sergio Benavides, José Miguel Troncoso, José Ricardo Pérez-Correa, Wendy Franco   +6 more
doaj   +1 more source

Apparent Permeability Prediction of Coal Matrix with Generalized Lattice Boltzmann Model considering Non-Darcy Effect

Geofluids, 2020
Methane flow in coal is associated with the content of both organic matter (OM) and inorganic matter (IOM). Coal matrix contains nanopores ranging in size from a few to hundreds of nanometers, which leads to a non-Darcy effect where the measured ...
Zhigao Peng, Shenggui Liu, Yingjun Li, Qi Yao   +3 more
doaj   +1 more source