Results 61 to 70 of about 8,156,149 (340)

Some geodynamical effects of anisotropic viscosity [PDF]

open access: yesGeophysical Journal International, 1987
Summary. Rheological anisotropy in the mantle may arise from various causes, the most important are the preferred orientation of single crystals, and the orientation of streaks of eclogitic material in a ‘marble cake’ mantle. In both cases the orientation can be achieved by the flow kinematics, and in steady state convection the planes of easy slip ...
openaire   +2 more sources

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

On the effective viscosity of fresh concrete: A homogenization approach

open access: yesVietnam Journal of Mechanics, 2019
Two new homogenization schemes together with the classical generalized self-consistent scheme (GSC) and its extension are proposed to deal with the effective viscosity of fresh concrete.
Tuan Nguyen-Sy, Duong Nguyen-The
doaj   +1 more source

Evaluation on time variation of effective viscosity by ultrasonic spinning rheometry (Application to separating oil-water mixture)

open access: yesNihon Kikai Gakkai ronbunshu, 2020
This paper evaluated measurement accuracy and precision of ultrasonic spinning rheometry (USR), which can evaluate rheological properties through equation of motion and velocity information captured by ultrasonic velocity profiler (UVP), in cases that ...
Kohei OHIE   +4 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

THE INFLUENCE OF STARCH PRODUCTS ON THE RHEOLOGI-CAL, PHYSICAL AND CHEMICAL PROPERTIES OF YOGURT

open access: yesHarčova Nauka ì Tehnologìâ
Expanding the assortment of low-fat yogurt with natural structuring sweeteners and regulated quality indicators is an actual direction of scientific research.
G. Polishchuk   +4 more
doaj   +1 more source

Thickness dependent effective viscosity of a polymer solution near an interface probed by a quartz crystal microbalance with dissipation method. [PDF]

open access: yesSci Rep, 2015
The solution viscosity near an interface, which affects the solution behavior and the molecular dynamics in the solution, differs from the bulk. This paper measured the effective viscosity of a dilute poly (ethylene glycol) (PEG) solution adjacent to a ...
Fang J, Zhu T, Sheng J, Jiang Z, Ma Y.
europepmc   +2 more sources

The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential

open access: yesAging and Cancer, EarlyView.
As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley   +1 more source

Rheology of Concentrated Emulsions of Spherical Droplets

open access: yesApplied Rheology, 2010
We propose a viscosity model accounting for experiments of emulsions of two immiscible liquids at arbitrary volume fractions. The model is based on a recursive-differential method formulated in terms of the appropriate scaling variable which emerges from
Mendoza Carlos I., Santamaría-Holek I.
doaj   +1 more source

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