Results 81 to 90 of about 834,609 (355)

Quantitative characterization of pore structure of several biochars with 3D imaging

open access: yes, 2017
Pore space characteristics of biochars may vary depending on the used raw material and processing technology. Pore structure has significant effects on the water retention properties of biochar amended soils.
Hannula, Markus   +5 more
core   +1 more source

Dynamic reservoir-condition microtomography of reactive transport in complex carbonates: effect of initial pore structure and initial brine pH [PDF]

open access: yes, 2017
We study the impact of brine acidity and initial pore structure on the dynamics of fluid/solid reaction at high Péclet numbers and low Damköhler numbers.
Bijeljic, B, Blunt, M, Menke, HP
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Influence of Pore Structure Characteristics of Primary Coal on Coalbed Methane Adsorption

open access: yesAdvances in Materials Science and Engineering, 2022
In order to better discuss the influence of pore structure characteristics of primary coal on coalbed methane adsorption, suburban coal and Zhaozhuang coal in Henan Province were systematically sampled.
Gang Liu
doaj   +1 more source

Block of Kcnk3 by protons. Evidence that 2-P-domain potassium channel subunits function as homodimers. [PDF]

open access: yes, 2001
KCNK subunits have two pore-forming P domains and four predicted transmembrane segments. To assess the number of subunits in each pore, we studied external proton block of Kcnk3, a subunit prominent in rodent heart and brain.
Goldstein, SA, Lopes, CM, Zilberberg, N
core  

Pore pressures and strains after repeated loading of saturated clay [PDF]

open access: yes, 1974
Repeated and sustained loading tests on undrained samples of normally consolidated lacustrine clay are used to prove the existence of a relationship between pore water pressures and axial strains.The behavior of the clay is studied by investigating the ...
Greenwood, JR, Wilson, NE
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Interconnectivity of habitats in soil:combining X-ray micro tomography and thin sectioning to reveal fungal-soil structure interactions [PDF]

open access: yes, 2009
The extreme heterogeneity and interconnectivity of the 3-dimensional pore space within soil makes it a unique habitat for the diverse microbial population and has a pivotal role in microbial interactions.
Binnie, Kirsty   +4 more
core  

Modified Kedem-Katchalsky equations for osmosis through nano-pore

open access: yes, 2016
This work presents a modified Kedem-Katchalsky equations for osmosis through nano-pore. osmotic reflection coefficient of a solute was found to be chiefly affected by the entrance of the pore while filtration reflection coefficient can be affected by ...
Huang, Suyi   +6 more
core   +1 more source

Modeling of multifunctional porous tissue scaffolds with continuous deposition path plan [PDF]

open access: yes, 2012
A novel modeling technique for porous tissue scaffolds with targeting the functionally gradient variational porosity with continuous material deposition planning has been proposed.
Khoda, AKM B.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy