Results 91 to 100 of about 771,516 (312)

Textile Encoding Inspired by Langer Lines via Elastically Graded Embroidered Tessellations

open access: yesAdvanced Materials, EarlyView.
A standard embroidery machine can encode skin‐like directional mechanics into stretchable fabrics that, when worn, augment the wearer's skin. Zigzag stitch patterns, inspired by skin collagen structure, pack extra slack in threads that, when tessellated, mimic Langer lines.
Leonid Zinatullin   +3 more
wiley   +1 more source

Warm inflation in Horndeski gravity [PDF]

open access: yesGeneral Relativity and Gravitation, 2017
In this paper, we investigate a class of Horndeski scalar-tensor theory of gravity for warm inflation. We present some models where the early-time acceleration is realized in the weak and in the strong dissipation regime. Cosmological perturbations are analyzed.
Ratbay Myrzakulov   +3 more
openaire   +4 more sources

A Roadmap for Plasma‐Enabled Electrocatalysis in Urea Production

open access: yesAdvanced Materials, EarlyView.
A modular plasma—electrochemical platform enables fully electrified urea synthesis from air and CO2 under ambient conditions. This Review integrates plasma oxidation, C─N coupling electrolysis, mechanistic insights, and techno‐economic metrics into a roadmap for scalable, distributed, and renewable fertilizer production.
Jingwen Huang   +6 more
wiley   +1 more source

The importance of being warm (during inflation) [PDF]

open access: yesPhysics Letters B, 2014
7 pages, 1 figure; added discussion and references; matches published version in Phys.
Bartrum, Sam   +5 more
openaire   +2 more sources

Smart Electrochromic Devices for Wearables

open access: yesAdvanced Materials Technologies, EarlyView.
This article reviews the recent progress of smart electrochromic devices in the field of intelligent wearable devices. Serving as displays, dimmers, energy‐saving and energy storage devices, and temperature management components, electrochromic devices have broad prospects in flexible displays, human–computer interaction, and personalized ...
Mengjie Zhu   +6 more
wiley   +1 more source

Towards a reliable effective field theory of inflation

open access: yesPhysics Letters B, 2021
We present the first quantum field theory model of inflation that is renormalizable in the matter sector, with a super-Hubble inflaton mass and sub-Planckian field excursions, which is thus technically natural and consistent with a high-energy completion
Mar Bastero-Gil   +3 more
doaj   +1 more source

Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials

open access: yesAdvanced Robotics Research, EarlyView.
Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira   +5 more
wiley   +1 more source

Adiabatic out-of-equilibrium solutions to the Boltzmann equation in warm inflation

open access: yesJournal of High Energy Physics, 2018
We show that, in warm inflation, the nearly constant Hubble rate and temperature lead to an adiabatic evolution of the number density of particles interacting with the thermal bath, even if thermal equilibrium cannot be maintained.
Mar Bastero-Gil   +3 more
doaj   +1 more source

Constraint on the Higgs-Dilaton Potential via Warm Inflation in Two-Time Physics

open access: yesAdvances in High Energy Physics, 2022
Within the SP2,R symmetry, the two-time model (2T model) has six dimensions with two dimensions of time and the dilaton field that can be identified as inflaton in a warm inflation scenario with potential of the form ~ϕ4.
Vo Quoc Phong, Ngo Phuc Duc Loc
doaj   +1 more source

Aging and the Spectral Properties of Brain Hemodynamics

open access: yesAdvanced Science, EarlyView.
As the brain ages, its metabolic demands decline—but not uniformly. Here, spectral slope flattening of resting‐state fMRI signals is proposed as a potential biomarker of pathologic brain aging. A subset of older adults diverges from youthful spectral and metabolic patterns, with changes linked to frontal white matter pathology and regional loss of ...
Ki Yun Park   +9 more
wiley   +1 more source

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