Results 61 to 70 of about 28,813 (217)

Electric and Dielectric Properties of Cotton and Regenerated Cellulose Fibers in Comparison with Polyethylene Terephthalate Fiber

open access: yesJournal of Natural Fibers
The objective of this study is to look into the dielectric and ac-conductivity characteristics of Egyptian cotton and some regenerated cellulose fibers, i,e. viscose, bamboo, tencel, and modal fibers in comparison with PET fibers.
Alsaid Ahmed Almetwally   +1 more
doaj   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

Fabrication of Metal/Ferro-Electric/Semiconductor (Au/Bi4Ti3O12/n-Si) Devices and Temperature Dependent Examination of Their Complex Dielectric and Electric Modulus at 1 MHz

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2018
Metal-semiconductor (MS) devices, which have ferroelectric (Bi4Ti3O12) interfacial layers, were fabricated and their complex dielectric and electric modules have been studied in a wide range of temperature (80-320 K) at 1 MHz.
Perihan Durmuş
doaj   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

open access: yesAdvanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen   +12 more
wiley   +1 more source

Electronic transport characteristics and nanodevice designs for β-HfNCl monolayer

open access: yesResults in Physics
The mechanical properties, electronic structure, electric transport and optoelectronic properties of a recently predicted wide bandgap semiconductor β-HfNCl monolayer are systematically studied by means of first-principles calculations. β-HfNCl monolayer
Yi Wu   +9 more
doaj   +1 more source

From Geometry to Function: Programmable Mechanical Response in 3D‐Printed Adipose‐Inspired Soft Metamaterials

open access: yesAdvanced Functional Materials, EarlyView.
Geometry‐driven design of soft cellular metamaterials is systematically investigated by combining experiments, finite element modeling, and statistical prediction. The study quantifies how unit cell geometry and material properties govern stiffness, instability, densification, and energy absorption.
Alice Berardo   +4 more
wiley   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han   +5 more
wiley   +1 more source

Exploration of the charge transport mechanism, complex impedance, dielectric/electric modulus and energy storage characteristics of the aloe vera (Aloe Barbadensis Miller) plant

open access: yesMaterials Research Express
Complex impedance spectra at room temperature in the frequency range of 8 Hz—5 MHz were measured on freshly cut leaf sections of the Aloe vera plant by AC impedance spectroscopy.
Maria Vesna Nikolic   +2 more
doaj   +1 more source

Ion in Chitosan Based Solid Electrolyte

open access: yesInternational Journal of Electrochemical Science, 2019
Ion transport has been the subject of debate among scientists for more than three decades. This paper discusses the preparation, degradation and viscoelastic relaxation dynamics of ions in chitosan-based solid electrolyte.
Shujahadeen B. Aziz   +6 more
doaj   +1 more source

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

open access: yesAdvanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah   +7 more
wiley   +1 more source

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