Results 111 to 120 of about 132,385 (193)

LE DERNIER COMBAT DU CONSULADO DE CADIX. LA LUTTE DU COMMERCE DE CADIX CONTRE LE DEMANTELEMENT DE LA CARRERA DE INDIAS (1797-1824) [PDF]

Almanack
Résumé Le rôle du Consulado de Cadix dans la construction de la situation monopolistique dont bénéficièrent ses membres au XVIIIe siècle au sein de la Carrera de Indias a déjà été largement mis en valeur dans l’historiographie de l’Atlantique hispanique.
Arnaud Bartolomei
doaj   +1 more source

Monopole-anti-monopole bounded pairs

, 2002
LaTeX, 9 pages, submitted to Acta Phys.
Slusarczyk, M., Wereszczynski, A.
openaire   +2 more sources

Global EiBI-monopole

上海师范大学学报. 自然科学版, 2014
A global EiBI-monopole problem is studied under EiBI gravitational theory.The equations of global EiBI-monopole are derived in the curved spacetime and the relation between the spacetime metric and auxiliary metric is found.In the case of a very small ...
JIN Xinghua
doaj   +1 more source

Single-Motor Controlled Mechanically Frequency Reconfigurable Unidirectional Antenna Array With Stable Radiation Patterns

IEEE Open Journal of Antennas and Propagation
This article presents a mechanically frequency-reconfigurable monopole antenna and array that offers a wide tuning range, gain enhancement, and stable beamwidth. The monopole is positioned above a large reflector plate to achieve unidirectional radiation
Abubakar Muhammad Sadiq, Minglve Liu, Xiao Zhang, Yu Luo, Yan Chen, Kaixue Ma   +5 more
doaj   +1 more source

Compact Size 4-Port MIMO Antenna Formed with Two-Branches Strip-Monopoles with Bandwidth Enhancement Using a T-Stub Line-Load

Applied Sciences
This work presents a compact four-port MIMO antenna with each radiator consisting of a conventional two-monopole array fed at a single point by a coplanar line and reactively loaded with a stub.
Jose Alfredo Tirado-Mendez, Hildeberto Jardon-Aguilar, Roberto Linares-Miranda, Erik Fritz-Andrade, Ruben Flores-Leal, Angel Perez-Miguel, Ricardo Gomez-Villanueva   +6 more
doaj   +1 more source

SUSY monopole potentials in 2+1 dimensions

Journal of High Energy Physics, 2017
Gauge theories in 2+1 dimensions can admit monopole operators in the potential. Starting with the theory without monopole potential, if the monopole potential is relevant there is an RG flow to the monopole-deformed theory. Here, focusing on U(N c ) SQCD
Francesco Benini, Sergio Benvenuti, Sara Pasquetti   +2 more
doaj   +1 more source

Experimental Realization of a Dirac Monopole through the Decay of an Isolated Monopole

Physical Review X, 2017
We experimentally observe the decay dynamics of deterministically created isolated monopoles in spin-1 Bose-Einstein condensates. As the condensate undergoes a change between magnetic phases, the isolated monopole gradually evolves into a spin ...
T. Ollikainen, K. Tiurev, A. Blinova, W. Lee, D. S. Hall, M. Möttönen   +5 more
doaj   +1 more source

The monopole solution in nonlinear massive gravity

上海师范大学学报. 自然科学版, 2012
Recently,nonlinear massive gravity is under discussed.Nonlinear massive gravity can not only screen the fifth force on small distance,but also make acceleration on cosmological scales.On the other hand,there exsits monopole solutions in the minimal model
LI Ping, FENG Chaojun
doaj  

3D-structure coupled monopole designs with lower frequency resonance

ETRI Journal
In this study, we investigated three-dimensional configurations involving a monopole-coupled wired ring, a hollow metallic cylinder, and wired helix spring to achieve resonance lower than quarter-wave resonance. The reso-nance frequency of a quarter-wave
Enamul Khan, Md. Ataur Safi Rahaman Laskar, Khan Masood Parvez, SK. Moinul Haque   +3 more
doaj   +1 more source

Welfare‐Increasing Monopolization*

The Journal of Industrial Economics
The conditions for monopolization to be good for social welfare are examined. Social welfare can be higher when a monopoly sells to a monopoly, with double margins, than when a competitive industry sells to a downstream Cournot oligopoly with differing efficiency levels.
openaire   +4 more sources