Results 91 to 100 of about 1,593,242 (308)

Dipolos impresos multifrecuencia cargados con partículas metamateriales [PDF]

, 2008
Multi-frequency printed dipoles based on antipodal printed dipoles loaded with metamaterial particles are presented. Split Ring Resonators (SRRs) are used as metamaterial particles in order to obtain fully printed and planar antennas. First, a simplified
García Muñoz, Luis Enrique, González Posadas, Vicente, Herraiz Martínez, Francisco Javier, Segovia Vargas, Daniel   +3 more
core   +1 more source

Microstrip resonator for microwaves with controllable polarization

, 2007
In this work the authors implemented a resonator based upon microstrip cavities that permits the generation of microwaves with arbitrary polarization. Design, simulation, and implementation of the resonators were performed using standard printed circuit ...
A. C. Torrezan, G. Medeiros-Ribeiro, Poole C. P., T. P. Mayer Alegre   +3 more
core   +1 more source

Far Infrared Source Counts at 70 and 160 microns in Spitzer Deep Surveys [PDF]

, 2004
We derive galaxy source counts at 70 and 160 microns using the Multiband Imaging Photometer for Spitzer (MIPS) to map the Chandra Deep Field South (CDFS) and other fields. At 70 microns, our observations extend upwards about 2 orders of magnitude in flux
A. Alonso‐Herrero, C. A. Beichman, C. Papovich, C. W. Engelbracht, D. C. Hines, D. T. Frayer, Devriendt J. E. G., E. Egami, E. Le Floc’h, E. T. Young, Elbaz D., G. H. Rieke, G. Lagache, G. Neugebauer, Gispert R., H. Dole, Hauser M. G., J. E. Morrison, J. R. Mould, J. R. Rigby, Juvela M., K. A. Misselt, K. D. Gordon, Kawara K., L. Bai, Lagache G., Lagache G., Linden-Vornle M. J. D., M. Blaylock, M. J. Rieke, Matsuhara H., O. Krause, P. G. Perez‐Gonzalez, P. L. Richards, Puget J. L., Puget J. L., Rowan-Robinson M.   +36 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Removal of violations of the Master Ward Identity in perturbative QFT

, 2008
We study the appearance of anomalies of the Master Ward Identity, which is a universal renormalization condition in perturbative QFT. The main insight of the present paper is that any violation of the Master Ward Identity can be expressed as a LOCAL ...
Bogoliubov N. N., Dütsch M., Dütsch M., Epstein H., FERDINAND BRENNECKE, Henneaux M., Itzykson C., MICHAEL DÜTSCH, Piguet O., Steinmann O.   +9 more
core   +1 more source

Large-p_T Photoproduction of D^*+- Mesons in ep Collisions [PDF]

, 1996
The cross section for the inclusive photoproduction of large-p_T D^*+- mesons is calculated at next-to-leading order, adopting different approaches to describe the fragmentation of charm quarks into D^*+- mesons. We treat the charm quark according to the
Kniehl, B. A., Kramer, G., Spira, M.
core   +2 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Superconductivity devices: Commercial use of space [PDF]

High T sub C superconducting thick film were prepared by a screen printing process. Y-based (YBa2Cu3O(7-x) superconducting thick film were printed on 211/Al2O3, SNT/Al2O3, and YSZ substrates.
Haertling, Gene, Hsi, Chi-Shiung, Li, Guang   +2 more
core   +1 more source

Critical Behavior of the 3d Random Field Ising Model: Two-Exponent Scaling or First Order Phase Transition?

, 1995
In extensive Monte Carlo simulations the phase transition of the random field Ising model in three dimensions is investigated. The values of the critical exponents are determined via finite size scaling.
A. Aharony, A. Aharony, A. Falicov, A. J. Bray, A. P. Young, A. P. Young, A. T. Ogielski, A. T. Ogielski, D. P. Belanger, D. P. Belanger, D. S. Fisher, G. Parisi, G. S. Rushbrooke, H. Rieger, H. Rieger, Heiko Rieger, I. Dayan, J. Bricmont, J. Cardy, J. P. Hill, J. P. Hill, J. Villain, K. Binder, M. Gofman, M. Karszewiski, M. Mézard, M. Mézard, M. Nauenberg, M. S. Cao, M. S. S. Challa, M. Schwartz, M. Schwartz, M. Schwartz, M. Schwartz, M. Schwartz, P. Pollack, P. W. Anderson, R. J. Birgeneau, S. Fishman, S. R. McCay, W. Kleemann, Y. Imry   +41 more
core   +1 more source