Results 141 to 150 of about 1,365,242 (363)

STUDY OF THE MULTIPLICITY OF DIELECTRIC RELAXATION TIMES IN ICE AT LOW TEMPERATURES.

open access: yes, 1987
En utilisant les possibilités expérimentales de la méthode des thermocourants de dépolarisation (T.C.D.), on a montré que le pic de T.C.D. à basse température de la glace polycristalline, dû à la relaxation diélectrique dipolaire de la glace dans ce ...
Apekis, L   +3 more
core   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi   +5 more
wiley   +1 more source

Quantifying Stress and Relaxation: A New Measure of Heart Rate Variability as a Reliable Biomarker

open access: yesBiomedicines
Background/Objectives: For the rapid, objective characterization of the physiological stress response, there is currently no generally recognized standard.
Emese Rudics   +9 more
doaj   +1 more source

Dielectric and dynamic mechanical study of the mobility of poly(t-butylacrylate) chains in diblock copolymers: polystyrene-b-poly(t-butylacrylate)

open access: yes, 2008
A calorimetric, dielectric and dynamic-mechanical study of the dynamics of the poly(t-butyl acrylate) (PtBa) chains has been carried out in a PtBa homopolymer and two polystyrene (PS)-b-PtBa block copolymers with different PtBa chain lengths.
Encinar del Pozo, Mario   +14 more
core   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş   +2 more
wiley   +1 more source

Work-hardening correction for stress relaxation derived creep properties.

open access: yes, 1981
A work-hardening correction has been added to a previously devised method for characterising the long-term deformation properties of metals and alloys by derivation from short-term relaxation data.
Clissold, R, Pollock, JTA
core  

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Enhanced substrate stress relaxation promotes filopodia-mediated cell migration

open access: yesNature Materials, 2021
Kolade Adebowale   +10 more
semanticscholar   +1 more source

Relaxation and Mindfulness in Pain: A Review

open access: yes, 2010
• This article reviews the existing, peer-reviewed evidence for the use of relaxation and mindfulness in both acute and chronic pain.• There is some evidence that relaxation can reduce pain outcomes in both acute and chronic pain, however there is ...
Miles Thompson   +4 more
core   +1 more source

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