Institution
Queen's University Belfast
Education•Belfast, United Kingdom•
About: Queen's University Belfast is a education organization based out in Belfast, United Kingdom. It is known for research contribution in the topics: Population & Context (language use). The organization has 25457 authors who have published 55463 publications receiving 1751346 citations. The organization is also known as: Queen's College, Belfast & Queen's College.
Topics: Population, Context (language use), Laser, Catalysis, Ionic liquid
Papers published on a yearly basis
Papers
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Carnegie Institution for Science1, University of Puerto Rico2, West Virginia University3, Oak Ridge National Laboratory4, University of Maryland, College Park5, National Institute of Technology, Rourkela6, Council of Scientific and Industrial Research7, Queen's University Belfast8, Norfolk State University9
TL;DR: The ferroelectric, magnetic and ME properties of PFN/NZFO/PFN trilayer nanoscale heterostructure are reported, revealing them as potential candidates for nanoscales multifunctional and spintronics device applications.
Abstract: Multiferroic materials have attracted considerable attention as possible candidates for a wide variety of future microelectronic and memory devices, although robust magnetoelectric (ME) coupling between electric and magnetic orders at room temperature still remains difficult to achieve. In order to obtain robust ME coupling at room temperature, we studied the Pb(Fe0.5Nb0.5)O3/Ni0.65Zn0.35Fe2O4/Pb(Fe0.5Nb0.5)O3 (PFN/NZFO/PFN) trilayer structure as a representative FE/FM/FE system. We report the ferroelectric, magnetic and ME properties of PFN/NZFO/PFN trilayer nanoscale heterostructure having dimensions 70/20/70 nm, at room temperature. The presence of only (00l) reflection of PFN and NZFO in the X-ray diffraction (XRD) patterns and electron diffraction patterns in Transmission Electron Microscopy (TEM) confirm the epitaxial growth of multilayer heterostructure. The distribution of the ferroelectric loop area in a wide area has been studied, suggesting that spatial variability of ferroelectric switching behavior is low, and film growth is of high quality. The ferroelectric and magnetic phase transitions of these heterostructures have been found at ~575 K and ~650 K, respectively which are well above room temperature. These nanostructures exhibit low loss tangent, large saturation polarization (Ps ~ 38 µC/cm2) and magnetization (Ms ~ 48 emu/cm3) with strong ME coupling at room temperature revealing them as potential candidates for nanoscale multifunctional and spintronics device applications.
352 citations
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07 Nov 2014
TL;DR: The fourth Audio-Visual Emotion recognition Challenge (AVEC 2014) is presented, using a subset of the tasks used in a previous challenge, allowing for more focussed studies and the performance of the baseline system on the two tasks is presented.
Abstract: Mood disorders are inherently related to emotion. In particular, the behaviour of people suffering from mood disorders such as unipolar depression shows a strong temporal correlation with the affective dimensions valence, arousal and dominance. In addition to structured self-report questionnaires, psychologists and psychiatrists use in their evaluation of a patient's level of depression the observation of facial expressions and vocal cues. It is in this context that we present the fourth Audio-Visual Emotion recognition Challenge (AVEC 2014). This edition of the challenge uses a subset of the tasks used in a previous challenge, allowing for more focussed studies. In addition, labels for a third dimension (Dominance) have been added and the number of annotators per clip has been increased to a minimum of three, with most clips annotated by 5. The challenge has two goals logically organised as sub-challenges: the first is to predict the continuous values of the affective dimensions valence, arousal and dominance at each moment in time. The second is to predict the value of a single self-reported severity of depression indicator for each recording in the dataset. This paper presents the challenge guidelines, the common data used, and the performance of the baseline system on the two tasks.
350 citations
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TL;DR: There were significant improvements in ambulatory status and in sagittal‐plane kinematics in children with cerebral palsy, and in some cases these gains persisted after the tone‐reducing effects of the toxin had worn off.
Abstract: The role of intramuscular botulinum toxin A in the treatment of 26 children with cerebral palsy was evaluated. The indication for injection was the presence of a dynamic contracture of lower-limb muscles interfering with positioning or walking. Spastic target muscles were identified by clinical examination and, in ambulant children, by gait analysis. Between 50 and 320 units of botulinum toxin were injected into each muscle group to a total dose of 100 to 400 units per child. The effects of injection were monitored by repeated clinical examination and gait analysis. There were no clinically detectable systemic side-effects, and all but one patient had a reduction in tone, which occurred within three days and persisted for two to four months. There were significant improvements in ambulatory status and in sagittal-plane kinematics. In some cases these gains persisted after the tone-reducing effects of the toxin had worn off.
349 citations
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TL;DR: In this paper, the ability of Fuller's earth to adsorb a basic dye (Astrazone Blue) and an acidic dye (Telon Blue - Acid Blue 25) has been studied.
Abstract: The ability of Fuller's earth to adsorb a basic dye (Astrazone Blue — Basic Blue 69) and an acidic dye (Telon Blue - Acid Blue 25) has been studied. The equilibrium saturation adsorption capacities were 1200 mg dye g−1 Fuller's earth and 220 mg dye g−1 Fuller's earth for Astrazone Blue and Telon Blue, respectively. The kinetics of the adsorption processes were studied in an agitated batch adsorber. The time to reach 90% equilibrium value was achieved in less than 1 h. The variables investigated were agitation, adsorbent mass, initial dye concentration and temperature. A limited number of studies were undertaken using a fired clay but significantly lower saturation capacities were obtained, namely, 7 mg dye g−1 fired clay and 40 mg dye g−1 fired clay for Telon Blue and Astrazone Blue, respectively.
349 citations
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TL;DR: The methodology, results and limitations of the 2013 International Diabetes Federation (IDF) Atlas (6th edition) estimates of the worldwide numbers of prevalent cases of type 1 diabetes in children (<15 years) are described, with the largest numbers being in Europe and North America.
348 citations
Authors
Showing all 25808 results
Name | H-index | Papers | Citations |
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George Davey Smith | 224 | 2540 | 248373 |
David J. Hunter | 213 | 1836 | 207050 |
Grant W. Montgomery | 157 | 926 | 108118 |
Caroline S. Fox | 155 | 599 | 138951 |
Debbie A Lawlor | 147 | 1114 | 101123 |
Markus Ackermann | 146 | 610 | 71071 |
Hermann Kolanoski | 145 | 1279 | 96152 |
Paul Jackson | 141 | 1372 | 93464 |
Alan Ashworth | 134 | 578 | 72089 |
Conor Henderson | 133 | 1387 | 88725 |
David Smith | 129 | 2184 | 100917 |
Stuart J. Connolly | 125 | 610 | 75925 |
G. Merino | 123 | 687 | 66163 |
Richard J.H. Smith | 118 | 1308 | 61779 |
Yong-Guan Zhu | 115 | 684 | 46973 |