Results 51 to 60 of about 7,168,474 (339)

Time-varying diffusion characteristics of different gases in coal particles

International Journal of Mining Science and Technology, 2017
Based on the analytical solution of gas diffusion in spherical coal particles with a constant diffusion coefficient, a calculation method of time-varying diffusion coefficient is proposed by constructing objective function.
Qingming Long, Qianting Hu, Bo Cheng
doaj   +1 more source

Research on the edge effect for variable voltage RCM test of concrete

Shuili Shuiyun Gongcheng Xuebao, 2021
The edge effect, resulting from possible leakage in RCM test, and causing the chloride diffusion depth in the edge part of concrete specimen greater than that in the central part, was investigated systematically to analyze its influence on the chloride ...
CHEN Junwu, YANG Lüfeng, ZHAO Jiaqi, KANG Hao   +3 more
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source

Time-dependent diffusion coefficient of proton in polymer electrolyte membrane [PDF]

, 2009
We investigated the time-dependent self-diffusion coefficients of water, D(T eff), in polymer electrolyte membranes at 278 K. TheD(T eff) was measured from T eff=0.7 to 100 ms by field gradient NMR techniques.
Ohkubo, Takahiro, Ohira, Akihiro, Kidena, Koh   +2 more
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

FEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

Curvature effects on a simplified reaction-diffusion model of biodegradation [PDF]

, 2017
The biodegradation process of some types of polymers occurs due to many different factors including their morphology, structure and chemical composition.
Núnez-López, Mayra, Chacón-Acosta, Guillermo, Santiago, José A.   +2 more
core   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

FEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi, Alain Dolla, Frauke Baymann, Celine Rommevaux, Latifa Elantak, Helene Gaussier, Matthieu Nouailler   +6 more
wiley   +1 more source

Low b-values in apparent diffusion coefficient calculations overestimate diffusion in rectal cancer

Acta Oncologica
Background and purpose: The apparent diffusion coefficient (ADC), derived from diffusion-weighted MRI (DWI), is commonly calculated using a monoexponential model.
Johanna A. Hundvin, Marius Bornstein, Anne Negård, Stein H. Holmedal, Sebastian Meltzer, Anne H. Ree, Sara Pilskog, Kathrine R. Redalen   +7 more
doaj   +1 more source

Sorption measurements of autoclaved aerated concretes diffusion coefficient

E3S Web of Conferences, 2018
This study presents the results of sorption measurements and analyzes their applicability in the determination of the moisture diffusion coefficient in the porous media in which these processes occur. The test involved three classes of autoclaved aerated
Garbalińska Halina, Bochenek Magdalena
doaj   +1 more source