Results 61 to 70 of about 205,090 (306)

Production of entanglement in Raman three-level systems using feedback

, 2010
We examine the theoretical limits of the generation of entanglement in a damped coupled ion-cavity system using jump-based feedback. Using Raman transitions to produce entanglement between ground states reduces the necessary feedback bandwidth, but does ...
A. Beige, A. R.R. Carvalho, A. Rauschenbeutel, A.C. Doherty, A.R.R. Carvalho, A.R.R. Carvalho, C. Russo, C.A. Sackett, C.F. Roos, C.F. Roos, D. Bouwmeester, D. Leibfried, D.A. Lidar, H. Häffner, H. Häffner, H.M. Wiseman, H.M. Wiseman, J. J. Hope, J. Metz, J. Metz, J. Metz, J. Wang, J.K. Stockton, J.W. Pan, K. Molmer, M. Khudaverdyan, P. Zanardi, R. N. Stevenson, S. Mancini, S. Mancini, S. Mancini, T. Sauter, V.P. Belavkin, W.K. Wootters   +33 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Ground Vibration Measurements near Impact Pile Driving [PDF]

Journal of Geotechnical and Geoenvironmental Engineering, 2016
Pile driving is a complex dynamic process where little insight has been garnered in terms of the energy transfer from the driver to the soil and surrounding structures. Ground motion measurements during driving of full scale steel H-piles with diesel hammers are presented.
Grizi, Athina, Athanasopoulos-Zekkos, Adda, Woods, Richard   +2 more
openaire   +2 more sources

Magnon squeezing in an antiferromagnet: reducing the spin noise below the standard quantum limit [PDF]

, 2003
At absolute zero temperature, thermal noise vanishes when a physical system is in its ground state, but quantum noise remains as a fundamental limit to the accuracy of experimental measurements.
Bragas, A. V., Lockwood, D. J., Merlin, R., Zhao, J.   +3 more
core   +3 more sources

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Vibration Measurement and Prediction for Foundation Slab Design of a High-Tech Lab Based on In Situ Testing

Shock and Vibration, 2020
Reduction of road traffic-induced vibrations has gained importance with rapid development of high-tech industry and nanotechnology. This study focuses on the in situ vibration measurement and transmissibility-based vibration prediction for the foundation
Zhaogang Xu, Yu Lou, Liu Chen
doaj   +1 more source

3D Vibration Estimation from Ground-Based Radar [PDF]

Remote Sensing, 2018
The paper proposes a method to estimate 2D/3D vibrations and displacements of mostly linear structures, like pipes, chimneys, towers, bridges from afar, based on synchronized Radars. The method takes advantage of Radar sensitivity to displacements to sense tiny deformations (up to tens of micron) with a time scale from milliseconds to hours.
Andrea Monti-Guarnieri, Paolo Falcone, Davide D’Aria, Giuseppe Giunta   +3 more
openaire   +2 more sources

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Ground Vibrations Prediction Using Artificial Neural Networks [PDF]

Journal of Soft Computing in Civil Engineering
Predicting the propagation of ground vibration wave, induced by highways, railways, electrical power plants and other industrial activities, in their vicinity is of paramount importance to evaluate the degree of nuisance to populations, buildings and ...
Ismail Derbal, Nouredine Bourahla, Ahmed Mebarki, Ramdane Bahar   +3 more
doaj   +1 more source

Dynamic response of a double-deck circular tunnel embedded in a full-space [PDF]

, 2016
© 2016. This version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/A three-dimensional dynamic model for calculating the ground-borne vibrations generated by harmonic loads applied on the interior ...
Arcos Villamarín, Robert, Clot Razquin, Arnau, Pàmies Gómez, Teresa, Romeu Garbí, Jordi   +3 more
core   +2 more sources