Results 121 to 130 of about 2,185,278 (306)

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

open access: yesAdvanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen   +10 more
wiley   +1 more source

Thermostatted models for hysteresis in magnetic nanoparticles

open access: yes, 2002
textThe modeling of hysteresis in magnetic nanoparticles is interesting theoretically as an example of a driven, non-equilibrium system, and also important practically due to the use of the particles in magnetic storage devices.
Robb, Daniel Thomas
core  

Unified Phase‐Field Framework for Antiferroelectric, Ferroelectric and Dielectric Phases: Application to HZO Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
HfxZr1−xO2${\rm Hf}_x{\rm Zr}_{1-x}{\rm O}_2$ offers CMOS‐compatible nanoscale ferroelectricity yet suffers from a high Ec${\rm E}_c$ demanding large operating voltages. A unified phase‐field framework spanning AFE/FE/DE phases shows how FE grains soften neighboring AFE grains over λ$\lambda$ ≈$\approx$ 22–37 nm.
P. Pankaj   +4 more
wiley   +1 more source

The Nature of Occupational Unemployment Rates in the United States: Hysteresis or Structural? [PDF]

open access: yes
This paper provides new evidence on the nature of occupational differences in unemployment dynamics, which is relevant for the debate between the structural or hysteresis hypotheses.
Gil-Alana, Luis A.   +2 more
core  

Hysteresis loss of supermalloy at different temperatures [PDF]

open access: yes, 1948
The object of this investigation was to measure the hysteresis loss of supermalloy at different temperatures, and to see if temperature had any effect on hysteresis loss and permeability.
Holland, Chester Ray
core  

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

open access: yesAdvanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie   +13 more
wiley   +1 more source

Research on the Effect of Remanence with Magnetic Core on Output Parameters and Losses of the Pulse Transformer

open access: yes工程科学与技术
ObjectiveUnder repetitive-frequency conditions, the magnetic core of the pulse transformer will produce different initial remanence, which will affect the magnetization process of the magnetic core, and thus affect its output pulse parameters and losses.
JIANG Jinbo   +5 more
doaj  

Effects of tributary inflows on unsteady flow hysteresis and hydrodynamics in the mainstream

open access: yesHydrology Research
Flooding propagation is a crucial aspect of hydrological monitoring and forecasting. Previous studies have focused on hysteresis in the rating curve, caused by energy loss during flood propagation.
Hongwu Tang   +6 more
doaj   +1 more source

Enhanced Ferroelectric Phase Formation via Local Structure Modification in the Pre‐Crystalline State of Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Hafnium zirconium oxide thin films are grown using plasma‐enhanced atomic layer deposition with the addition of an atomic layer annealing (ALA) step. ALA leads to a change in the short‐range structure of the deposit and encourages formation of the ferroelectric Pca21 phase. The result is wake‐up‐free performance with films exposed to ALA.
Nicolas K. Lam   +18 more
wiley   +1 more source

Past expectations as a determinant of equilibrium prices - hysteresis in a simple economy [PDF]

open access: yes
We give an illustration of hysteresis (path-dependence) in a simple economy. In the presence of multiple possible equilibrium prices, we find that past expectations determine present prices.
João Correia-da-Silva, Sofia Castro
core  

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