Now showing items 2905-2924 of 10457

• #### Elastic and anelastic relaxation behaviour of perovskite multiferroics II: PbZr$_{0.53}$Ti$_{0.47}$O$_3$ (PZT)–PbFe$_{0.5}$Ta$_{0.5}$O$_3$ (PFT) ﻿

(Springer, 2016-09-09)
Elastic and anelastic properties of ceramic samples of multiferroic perovskites with nominal compositions across the binary join PbZr$_{0.53}$Ti$_{0.47}$O$_3$–PbFe$_{0.5}$Ta$_{0.5}$O$_3$ (PZT–PFT) have been assembled to ...
• #### Elastic and anelastic relaxations accompanying relaxor ferroelectric behaviour of Ba6GaNb9O30 tetragonal tungsten bronze from resonant ultrasound spectroscopy ﻿

(Springer, 2016)
Tetragonal tungsten bronze (TTB) structures offer some promise as lead-free ferroelectrics and have an advantage of great flexibility in terms of accessible composition ranges due to the number of crystallographic sites ...
• #### Elastic and anelastic relaxations associated with phase transitions in EuTiO3 ﻿

(American Physical Society, 2014-08-29)
Elastic and anelastic properties of single crystal samples of EuTiO3 have been measured between 10 and 300 K by Resonant Ultrasound Spectroscopy at frequencies in the vicinity of 1 MHz. Softening of the shear elastic ...
• #### Elastic and magnetoelastic relaxation behaviour of multiferroic (ferromagnetic + ferroelectric + ferroelastic) Pb(Fe_0.5Nb_0.5)O_3 perovskite ﻿

(IOP Science, 2015)
Resonant Ultrasound Spectroscopy has been used to characterise elastic and anelastic anomalies in a polycrystalline sample of multiferroic Pb(Fe_0.5Nb_0.5)O_3 (PFN). Elastic softening begins at ~550 K, which is close to ...
• #### The Elastic Behaviour of Sintered Metallic Fibre Networks: A Finite Element Study by Beam Theory ﻿

(PLOS, 2015-11-16)
Background: The finite element method has complimented research in the field of network mechanics in the past years in numerous studies about various materials. Numerical predictions and the planning efficiency of ...
• #### Elastic softening of leucite and the lack of polar domain boundaries ﻿

(Mineralogical Society of America, 2015-09-30)
Elastic properties of leucite have been investigated using resonant ultrasound spectroscopy over a temperature range from 300 K to 1400 K. According to these measurements, elastic moduli soften by ~50% at the Ia3d-I41/acd ...
• #### Elasticity and Glocality: Initiation of Embryonic Inversion in Volvox ﻿

(Royal Society Publishing, 2015-10-21)
Elastic objects across a wide range of scales deform under local changes of their intrinsic properties, yet the shapes are glocal, set by a complicated balance between local properties and global geometric constraints. ...
• #### Electric control of superconducting transition through a spin-orbit coupled interface ﻿

(Nature Publishing Group, 2016)
We demonstrate theoretically all-electric control of the superconducting transition temperature using a device comprised of a conventional superconductor, a ferromagnetic insulator, and semiconducting layers with intrinsic ...
• #### Electric control of the spin Hall effect by intervalley transitions ﻿

(Nature Publishing Group, 2014-08-10)
Controlling spin-related material properties by electronic means is a key step towards future spintronic technologies. The spin Hall effct (SHE) has become increasingly important for generating, detecting and using spin ...
• #### Electric Field-Modulated Non-Ohmic Behavior of Carbon Nanotube Fibers in Polar Liquids ﻿

(American Chemical Society, 2014-07-15)
We report a previously unseen non-Ohmic effect in which the resistivity of carbon nanotube fibers immersed in polar liquids is modulated by the applied electric field. This behavior depends on the surface energy, dielectric ...
• #### Electrical output of bryophyte microbial fuel cell systems is sufficient to power a radio or an environmental sensor ﻿

(Royal Society Publishing, 2016-10-26)
Plant microbial fuel cells are a recently developed technology that exploits photosynthesis in vascular plants by harnessing solar energy and generating electrical power. In this study, the model moss species \$\textit{Ph ...
• #### Electrical properties of semiconductor nanowires: Insights gained from terahertz conductivity spectroscopy ﻿

(IOP Publishing, 2016)
Accurately measuring and controlling the electrical properties of semiconductor nanowires is of paramount importance in the development of novel nanowire-based devices. In light of this, terahertz conductivity spectroscopy ...
• #### Electrical protein detection in cell lysates using high-density peptide-aptamer microarrays ﻿

(2008-01-31)
Abstract Background The dissection of biological pathways and of the molecular basis of disease requires devices to analyze simultaneously a staggering number of protein isoforms in a given cell under given conditions. ...
• #### Electrically Switchable and Permanently Stable Light Scattering Modes by Dynamic Fingerprint Chiral Textures ﻿

(American Chemical Society, 2016-04-01)
Negative dielectric nematic liquid crystals (LCs) doped with two azobenzene materials provide electrically switchable and permanently stable scattering mode light modulators based on dynamic fingerprint chiral textures ...
• #### Electrically Tunable Scattering from Devitrite-Liquid Crystal Hybrid Devices ﻿

(Wiley, 2016-01-01)
Devitrite is normally an unwanted crystalline impurity in the soda-lime-silica glass making process. Thin needles formed by heterogeneous nucleation of devitrite on the glass surface provide unique birefringence properties ...
• #### Electricity Demand and Basic Needs: Empirical Evidence from China's Households ﻿

(Elsevier, 2016-01-04)
An increasing block tariff (IBT) has been implemented nationwide in the residential sector in China since 2012. However, knowledge about IBT design is still limited, particularly how to determine the electricity volume for ...
• #### Electrifying inks with 2D materials ﻿

(NPG, 2014-10-06)
Felice Torrisi and Jonathan N. Coleman describe how graphene can be used in conductive inks to print electronic circuits.
• #### Electroactive Polymers for Sensing ﻿

(Royal Society Publishing, 2016)
Electro-mechanical coupling in electroactive polymers (EAPs) has been widely applied for actuation, and is also being increasingly investigated for sensing chemical and mechanical stimuli. EAPs are a unique class of ...
• #### Electrocatalytic and Solar-driven CO2 Reduction to CO with a Molecular Mn Catalyst Immobilized on Mesoporous TiO2 ﻿

(Wiley, 2016)
Electrocatalytic CO2 reduction to CO was achieved with a novel Mn complex, fac-[MnBr(4,4’-bis(phosphonic acid)-2,2’-bipyridine)(CO)3] (MnP), immobilized on a mesoporous TiO2 electrode. A benchmark turnover number of 112±17 ...
• #### Electrochemical interaction between graphite and molten salts to produce nanotubes, nanoparticles, graphene and nanodiamonds ﻿

(Springer, 2015-09-15)
The electrochemical interaction between graphite and molten salts to produce carbon nanostructures is reviewed. It is demonstrated that, depending on the conditions, it is possible to electrochemically convert graphite ...