Results 101 to 110 of about 207,601 (314)

An integrated model for pore pressure accumulations in marine sediment under combined wave and current loading

open access: yes, 2016
In this paper, an integrated model for the wave (current)-induced seabed response is presented. The present model consists of two parts: hydrodynamic model for wave-current interactions and poro-elastic seabed model for pore accumulations.
Jeng, D-S   +3 more
core   +1 more source

Pore pressure prediction using seismic velocity modeling: case study, Sefid-Zakhor gas field in Southern Iran

open access: yesJournal of Petroleum Exploration and Production Technology, 2019
Pore pressure estimation is important for both exploration and drilling projects. During the exploration phase, a prediction of pore pressure can be used to evaluate exploration risk factors including the migration of formation fluids and seal integrity.
Zahra Bahmaei, Erfan Hosseini
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Nuclear magnetic resonance cryoporometry [PDF]

open access: yes, 2008
Nuclear Magnetic Resonance (NMR) cryoporometry is a technique for non-destructively determining pore size distributions in porous media through the observation of the depressed melting point of a confined liquid.
Webber, J. Beau W.   +5 more
core   +1 more source

Estimating of Pore Pressure Gradient in Lower Fars Formation

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2018
In petroleum industry, the early knowledge of “pore pressure gradient” is the basis in well design and the extraction of these information is more direct when the pore pressure gradient is equal to normal gradient; however, this matter will be more ...
Neaam F. Hussain, Faleh H. M. Al Mahdawi
doaj   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

open access: yesFEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez   +2 more
wiley   +1 more source

Study on dynamic characteristics of saturated loess with liquefied flow-slide induced by Jishishan earthquake in Zhongchuan, Qinghai Province

open access: yesYantu gongcheng xuebao
The 2023 Jishishan Mw6.2 earthquake induced the liquefaction flow slip of loess in Zhongchuan Township. In order to reveal its low-angle long-distance slip mechanism, based on the dynamic triaxial tests and microstructure analysis of undisturbed ...
JIA Shichao 1, ZHONG Xiumei 2, WANG Qian 2, WANG Yi 1, WANG Yan 2, HU Xuefeng 2
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Pore structure characterization of low permeability rocks [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2014.Hoje as pesquisas em rochas de baixa permeabilidade (grande tendência no mundo e em breve ...
Schmitt, Mayka
core  

Weakly nonlinear thermoacoustics for stacks with slowly varying pore cross-sections

open access: yes, 2009
A general theory of thermoacoustics is derived for arbitrary stack pores. Previous theoretical treatments of porous media are extended by considering arbitrarily shaped pores with the only restriction that the pore cross-sections vary slowly in the ...
Slot, J.J.M.   +3 more
core   +1 more source

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