Results 81 to 90 of about 187,646 (209)

Oxidation of cellulose in pressurized carbon dioxide [PDF]

, 2009
This work presents first results upon oxidation of type II cellulose by nitrogen dioxide dissolved in carbon dioxide at high pressure. This reaction leads to oxidized cellulose, a natural-based bioresorbable fabric used for biomedical applications.
A. Rattaz, Beckman, Belkadi, Chao, Ermolenko, J.-S. Condoret, James, Krässig, Krässig, M. Vignon, Nevell, Nevell, Pavlyuchenko, Raveedran, Reamer, Redmond, S. Camy, S. Montanari, Stilwell, van der Kraan, Verhoek, Yackel   +21 more
core   +4 more sources

Gas diffusion through soil crumbs: the effects of wetting and swelling

Journal of Soil Science, 1983
Summary Gas diffusion coefficients for hydrogen through air in packings of 1–2 mm crumbs from a clay loam (both under grass and under arable) and from a sandy loam were measured over a range of water contents as the soils were wetted.
openaire   +1 more source

Effect of non-uniform swelling on coal multiphysics during gas injection: The triangle approach

Journal of Rock Mechanics and Geotechnical Engineering
In current dual porosity/permeability models, there exists a fundamental assumption that the adsorption-induced swelling is distributed uniformly within the representative elementary volume (REV), irrespective of its internal structures and transient ...
Yifan Huang, Jishan Liu, Yaoyao Zhao, Derek Elsworth, Yee-Kwong Leong   +4 more
doaj   +1 more source

New Models for UO2 Fuel Structure Evolution under Irradiation in Fast Reactors

, 2011
On the base of analysis of experimental observations and critical assessment of existing models for oxide fuel structure evolution under operation conditions of fast reactors, new models for fuel restructuring and coring are proposed.
Bourgeois, Brook, Burke, Chubb, Clement, de Halas, Freund, M.S. Veshchunov, Maeda, McEwan, Nichols, Nichols, Ozawa, Ronchi, Sens, Shewmon, Speight, Turnbull, Veshchunov, Veshchunov, Veshchunov, Veshchunov, Yajima, Yanagisawa   +23 more
core   +1 more source

Nonaqueous Fluoride/Chloride Anion-Promoted Delamination of Layered Zeolite Precursors: Synthesis and Characterization of UCB-2 [PDF]

, 2011
The delamination of layered zeolite precursor PREFER is demonstrated under mild nonaqueous conditions using a mixture of cetyltrimethylammonium bromide, tetrabutylammonium fluoride, and tetrabutylammonium chloride in N,N-dimethylformamide (DMF) as ...
Eilertsen, Einar A., Hwang, Son-Jong, Katz, Alexander, Ogino, Isao, Rea, Thomas, Yehb, Sheila, Zones, Stacey I.   +6 more
core   +1 more source

Surfactant films in lyotropic lamellar (and related) phases: Fluctuations and interactions

, 2017
The analogy between soap films thinning under border capillary suction and lamellar stacks of surfactant bilayers dehydrated by osmotic stress is explored, in particular in the highly dehydrated limit where the soap film becomes a Newton black film.
Nallet, Frédéric
core   +2 more sources

First-Principles Study of Irradiation Defects in γ′-U₂Mo

Metals
Understanding defect behavior and fission gas transport in uranium-molybdenum (U-Mo) fuels is key to explaining their swelling during reactor operation.
Yuxin Wang, Zhixiao Liu, Guangdong Liu, Dan Sun, Wenjie Li   +4 more
doaj   +1 more source

Impact of positive end expiratory pressure on cerebral hemodynamic in paediatric patients with post-traumatic brain swelling treated by surgical decompression.

PLoS ONE, 2018
IntroductionThe objective of our present study is to evaluate the impact of different PEEP levels on cerebral hemodynamic, gas exchanges and respiratory system mechanics in paediatric patients with post-traumatic brain swelling treated with decompressive
Silvia De Rosa, Gianluca Villa, Paola Franchi, Aldo Mancino, Federica Tosi, Marina Alessandra Martin, Simona Bazzano, Giorgio Conti, Silvia Maria Pulitanò   +8 more
doaj   +1 more source

Investigation of Pre- and Post-Swelling Behavior of Elastomeric Material

The Journal of Engineering Research, 2013
In the last ten years, a new type of modern polymer, known as swelling elastomer, has been used extensively as a sealing element in the oil and gas industry.
M Akhtar, Md Velden, SSA Al-Houqani
doaj   +1 more source

Insights into gas generation and self-absorption in lithium-ion batteries after fast charge aging: Mechanism and implications

Applications in Energy and Combustion Science
Lithium-ion batteries (LIBs) are susceptible to accelerated degradation, swelling, and safety concerns under fast-charging conditions, largely due to gas generation and related side reactions.
Meng Wang, Senming Wu, Ying Chen, Yiming Yao, Weiling Luan, Haofeng Chen   +5 more
doaj   +1 more source