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International Migration and Interstate Conflict
Get PDFIt is widely recognized that economic interdependence is a force for peace. When countries forge deep economic relationships with each other, they make resorting to violence to settle their differences much costlier and reaching a peaceful resolution more prized. These relationships include bilateral trade in goods and services, cross-border investment, and supply chain integration. International migration supports all three.Mosbacher Institute for Trade, Economics, and Public Policy-Texas A&M University-The Bush School of Government & Public Polic
2017 Texas High Plains and Panhandle Replicated Agronomic Cotton Evaluation (RACE) Trials
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Formation of Quasi-Static Bandgap in a Novel One-Dimensional Metamaterial: Simulation and Experiments
No full textThe main objective of this paper is to propose a new metamaterial capable of generating a quasistatic bandgap from zero frequency. The metamaterial is modelled by a lattice system made of mass-in-mass units using continuum beam elements. The unit cell of the proposed metamaterial contains a resonator connected to bar-spring mechanism embedded in a host mass. The stop band behavior of the new metamaterial is simulated in a commercial FEA software, COMSOL Multiphysics. By making use of dispersion curve analysis and transmissibility of the unit cells in a frequency domain, the band gap formation capabilities of the unit cell is studied. The proposed metamaterial is capable of forming quasi-static bandgaps and conventional bandgaps. The bandwidth of these are affected by geometrical parameters which vary the stiffness of the continuum beam elements. The paper defines 3 key parameters: mass ratio of resonator mass with respect to the main mass and the stiffness of two beams which control motion of the masses. The bandwidth of the bandgaps are studied along with the opening frequencies for the bandgaps
