Results 41 to 50 of about 8,550,318 (390)

Rheology, Mechanical Properties and Porosity of Ternary Alkali-Activated Binders Based on Mining Mud Waste with Waste Glass and Metakaolin

CivilEng, 2021
Alkali-activated materials have the potential to replace Portland cement in certain applications. To better understand these binders’ properties, it is relevant to study their rheological behaviour at early ages, like in the case of Portland cement paste.
Abdelhakim Benhamouda, João Castro-Gomes, Luiz Pereira-de-Oliveira   +2 more
doaj   +1 more source

A study of the static yield stress in a binary Lennard-Jones glass

, 2003
The stress-strain relations and the yield behavior of model glass (a 80:20 binary Lennard-Jones mixture) is studied by means of MD simulations. First, a thorough analysis of the static yield stress is presented via simulations under imposed stress ...
Berthier L., Bonn D., Chen L. J., Coussot P., Coussot P., Da Cruz F., David Lu C.-Y., Debrégeas G., F. Varnik, He G., Ho Huu C., J.-L. Barrat, L. Bocquet, Picard G., Pignon F., Rottler Jörg, van Aken B., Walls H. J.   +17 more
core   +3 more sources

Unified Description of Aging and Rate Effects in Yield of Glassy Solids [PDF]

, 2005
The competing effects of slow structural relaxations (aging) and deformation at constant strain rate on the shear yield stress $\tau^y$ of simple model glasses are examined using molecular simulations. At long times, aging leads to a logarithmic increase
A. Ruina, A. J. Liu, J. H. Dieterich, Jörg Rottler, L. C. E. Struik, Mark O. Robbins, R. N. Haward   +6 more
core   +1 more source

No yield stress required: Stress-activated flow in simple yield-stress fluids

Journal of Rheology
An elastoviscoplastic constitutive equation is proposed to describe both the elastic and rate-dependent plastic deformation behavior of Carbopol® dispersions, commonly used to study yield-stress fluids. The model, a variant of the nonlinear Maxwell model with stress-dependent relaxation time, eliminates the need for a separate Herschel–Bulkley yield ...
G. Pagani, M. Hofmann, L. E. Govaert, T. A. Tervoort, J. Vermant   +4 more
openaire   +2 more sources

Dynamic yield stresses of glasses: asymptotic formulae [PDF]

Journal of Physics: Condensed Matter, 2005
The stationary, shear rate dependent flow curves of yielding glasses are discussed within a mode coupling theory approach. Asymptotic formulae fo rt he shear stress at the transition point are obtained that take the form of generalized Hershel–Bulkeley constitutive equations, and enable one to find dynamical yield stresses by extrapolation.
Henrich, Oliver, Varnik, Fathollah, Fuchs, Matthias   +2 more
openaire   +3 more sources

Yield stress measurement of a thixotropic colloid

Rheologica Acta, 2019
Yield stress measurements have long been considered to be inconsistent and difficult, especially for a thixotropic colloid, since the thixotropic behavior gives rise to time-dependent rheological properties.
E. E. Ong, S. O’Byrne, J. Liow
semanticscholar   +1 more source

Prolonged Post-Harvest Preservation in Lettuce (Lactuca sativa L.) by Reducing Water Loss Rate and Chlorophyll Degradation Regulated through Lighting Direction-Induced Morphophysiological Improvements

Plants
To investigate the relationship between the lighting direction-induced morphophysiological traits and post-harvest storage of lettuce, the effects of different lighting directions (top, T; top + side, TS; top + bottom, TB; side + bottom, SB; and top ...
Jingli Yang, Jinnan Song, Jie Liu, Xinxiu Dong, Haijun Zhang, Byoung Ryong Jeong   +5 more
doaj   +1 more source

Effect of Different Bulk Sweeteners on the Dynamic Oscillatory and Shear Rheology of Chocolate

Applied Rheology, 2017
Effect of different bulk sweeteners including maltitol, isomalt and inulin on the steady and dynamic rheological behaviors as well as chocolate structure was investigated.
Kiumarsi Maryam, Rafe Ali, Yeganehzad Samira   +2 more
doaj   +1 more source

Effect of Plasticizer on Hydration and Rheological Behavior of Cement Pastes

CivilEng, 2022
Lignosulfonate-based admixtures (LS) obtained from sulfite pulping processes were the first dispersants added as a water-reducer to concrete. Less effective than the latest superplasticizers, the low cost and low environmental footprint of LS continue to
Youssef El Bitouri, Nathalie Azéma, Gwenn Le Saoût, Rolf Andreas Lauten, Klaartje De Weerdt   +4 more
doaj   +1 more source

High-Blue/Low-Red Mixed Light Modulates Photoperiodic Flowering in Chrysanthemum via Photoreceptor and Sugar Pathways

Plants
Chrysanthemum (Chrysanthemum morifolium Ramat.), a typical short-day plant (SDP), relies on photoperiod and light quality signals to regulate flowering and growth.
Jingli Yang, Zhengyang Cheng, Jinnan Song, Byoung Ryong Jeong   +3 more
doaj   +1 more source