Results 41 to 50 of about 1,689,337 (289)

When is visual information used to control locomotion when descending a kerb? [PDF]

PLoS ONE, 2011
BACKGROUND: Descending kerbs during locomotion involves the regulation of appropriate foot placement before the kerb-edge and foot clearance over it. It also involves the modulation of gait output to ensure the body-mass is safely and smoothly lowered to
John G Buckley, Matthew A Timmis, Andy J Scally, David B Elliott   +3 more
doaj   +1 more source

Strong-coupling branching of FQHL edges

, 2004
We have developed a theory of quasiparticle backscattering in a system of point contacts formed between single-mode edges of several Fractional Quantum Hall Liquids (FQHLs) with in general different filling factors $\nu_j$ and one common single-mode edge
D. V. Averin, D.V. Averin, J. Frölich, V. V. Ponomarenko   +3 more
core   +1 more source

Bound states of 3He at the edge of a 4He drop on a cesium surface [PDF]

, 2003
We show that small amounts of 3He atoms, added to a 4He drop deposited on a flat cesium surface at zero temperature, populate bound states localized at the contact line. These edge states show up for drops large enough to develop well defined surface and
D. Ross, E. S. Hernández, F. Dalfovo, J. Treiner, J. Treiner, K. S. Ketola, M. Barranco, M. Guilleumas, M. Pi, M. S. Pettersen, N. Pavloff, P.-C. Ho, R. Mayol, R. B. Hallock, S. K. Mukherjee   +14 more
core   +3 more sources

Development of high-speed directly-modulated DFB and DBR lasers with surface gratings [PDF]

, 2011
The conventional distributed feedback and distributed Bragg reflector edge-emitting lasers employ buried gratings, which require two or more epitaxial growth steps.
Afzal, S., Bardella, Paolo, Dumitrescu, M., Eisenstein, G., Gready, D., Kamp, M., Karinen, J., Laakso, A., Melanen, P., Montrosset, Ivo, Parillaud, O., Reithmaier J.-P., Sek, G., Telkkälä, J., Uusimaa, P., Vallone, Marco Ernesto, Viheriälä, J.   +16 more
core   +1 more source

Edge channels and the role of contacts in the quantum Hall regime [PDF]

Physical Review B, 1990
The vanishing voltage drop Uxx in the quantum Hall regime is destroyed if barriers with reduced filling factors are introduced between the potential probes. We investigated a system with two barriers created by Schottky gates that are separated by up to 200 ìm.
Müller, G., Weiss, Dieter, Koch, S., Klitzing, Klaus von, Nickel, H., Schlapp, W., Lösch, R.   +6 more
openaire   +3 more sources

Momentum-Resolved Tunneling into Fractional Quantum Hall Edges

, 2002
Tunneling from a two-dimensional contact into quantum-Hall edges is considered theoretically for a case where the barrier is extended, uniform, and parallel to the edge.
A. Altland, A.H. MacDonald, A.M. Chang, A.M. Chang, B. Kardynał, B.I. Halperin, C. Chamon, E. Shimshoni, E.E. Vdovin, F.D.M. Haldane, F.P. Milliken, J. Voit, J. von Delft, J.J. Palacios, J.K. Jain, J.P. Eisenstein, M. Fabrizio, M. Governale, M. Grayson, M. Grayson, M. Hilke, M. Huber, O.M. Auslaender, R.B. Laughlin, T. Jungwirth, U. Zülicke, U. Zülicke, U. Zülicke, V. Meden, W. Kang, X.G. Wen, X.G. Wen, X.G. Wen   +32 more
core   +1 more source

Dynamic wetting and spreading and the role of topography [PDF]

, 2009
Hoffman-de Gennes law, which relates the edge speed, ve, to the dynamic and equilibrium contact angles q and qe by ve µq(q2 -qe 2 ). When the liquid wets the surface completely and the equilibrium contact angle vanishes, the edge speed is proportional to
McHale, Glen, Newton, Michael, Shirtcliffe, Neil   +2 more
core   +1 more source

Edge Contact Forces and Quasi-Balanced Power

Meccanica, 1997
20 ...
DELL'ISOLA, Francesco, SEPPECHER, PIERRE
openaire   +4 more sources

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai, Yoshitaka Kurihara, Fumi Yamauchi, Hiromi Hosoya, Takeshi Saito   +4 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source