Results 41 to 50 of about 515,328 (302)

Online Nuclear Magnetic Resonance Analysis of the Effect of Stress Changes on the Porosity and Permeability of Shale Oil Reservoirs

open access: yesEnergies, 2023
In the process of volumetric fracturing of shale oil, physical property changes caused by stress changes will affect the recovery, so it is urgent to conduct an analysis and evaluation of physical property changes caused by stress changes.
Lanlan Yao   +9 more
doaj   +1 more source

Fouling mechanisms in constant flux crossflow ultrafiltration [PDF]

open access: yes, 2019
Four fouling models due to Hermia (complete pore blocking, intermediate pore blocking, cake filtration and standard pore blocking), have long been used to describe membrane filtration and fouling in constant transmembrane pressure (ΔP) operation of ...
Cheng, Yu-Heng   +4 more
core   +2 more sources

Yield stress fluids method to determine the pore size distribution of a porous medium [PDF]

open access: yes, 2014
In this paper a new method is presented in order to determine the pore size distribution in a porous medium. This original technique uses the rheological properties of some non-Newtonian yield stress fluids flowing through the porous sample.
AMBARI, Abdelhak   +2 more
core   +6 more sources

Effect of Seismic Loading on Variation of Pore Water Pressure During Pile Pull-Out Tests in Sandy Soils

open access: yesJournal of Engineering, 2021
Experimental model was done for pile model of L / D = 25 installed into a laminar shear box contains different saturation soil densities (loose and dense sand) to evaluate the variation of pore water pressure before and after apply seismic loading.
Haider N. Abdul Hussein   +2 more
doaj   +1 more source

Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test [PDF]

open access: yes, 2009
A method is presented for the evaluation of the permeability-porosity relationship in a low-permeability porous material using the results of a single transient test. This method accounts for both elastic and non-elastic deformations of the sample during
Ai   +39 more
core   +5 more sources

Slurry infiltration tests for slurry shield tunnelling in saturated sand [PDF]

open access: yes, 2016
Tunnelling in saturated sand will cause excess pore pressures in the sand. This was the case during the construction of all tunnels in the Netherlands. This excess pore pressure influences the stability of the tunnel face.
Bezuijen, Adam, XU, T
core   +1 more source

Nutritional and Behavioral Intervention for Long‐Term Childhood Acute Leukemia Survivors With Metabolic Syndrome

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Metabolic syndrome (MetS) is a common complication in survivors of childhood acute lymphoblastic and myeloid leukemia (AL), and a major risk factor for premature cardiovascular disease, type‐2‐diabetes, and metabolic dysfunction‐associated steatotic liver disease (MASLD).
Visentin Sandrine   +10 more
wiley   +1 more source

Numerical analysis of rapid drawdown: applications in real cases [PDF]

open access: yes, 2016
In this study, rapid drawdown scenarios were analyzed by means of numerical examples as well as modeling of real cases with in situ measurements. The aim of the study was to evaluate different approaches available for calculating pore water pressure ...
Alonso Pérez de Agreda, Eduardo   +1 more
core   +2 more sources

The MedSupport Multilevel Intervention to Enhance Support for Pediatric Medication Adherence: Development and Feasibility Testing

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction We developed MedSupport, a multilevel medication adherence intervention designed to address root barriers to medication adherence. This study sought to explore the feasibility and acceptability of the MedSupport intervention strategies to support a future full‐scale randomized controlled trial.
Elizabeth G. Bouchard   +8 more
wiley   +1 more source

Experimental study on coal seepage characteristics and stress sensitivity

open access: yesMeikuang Anquan, 2022
Taking No.3 coal seam of Daping Coal Mine in Lu’an Mining Area of Shanxi Province as the research object, the response law of coal permeability to pore pressure and surrounding pressure was systematically explored by using HB-2 type coal rock sample pore
LYU Runsheng   +4 more
doaj   +1 more source

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