Effective defects

Effective Description of Axion Defects

Axion strings and domain walls exhibit a number of novel effects in the presence of gauge fields, in particular the electromagnetic field. It is shown how these effects are reproduced in a model of Nambu-Goto-type strings and open or closed membranes coupled to gauge fields. The generalization to 'axionic p-branes' is considered and it is shown how worldvolume gauge fields that arise in certain...

Effective actions for bosonic topological defects.

We consider a gauge field theory which admits p-dimensional topological defects, expanding the equations of motion in powers of the defect thickness. In this way we derive an effective action and effective equation of motion for the defect in terms of the coordinates of the p-dimensional worldsurface defined by the history of the core of the defect. (_'.,'-\ ,t-b-!-] .7_-7.__ "_;:'CTIV_: Ac<:'l...

Detection and Evaluation of Road Defects Effective in Accidents: A Case Study of Tehran City

 Detection and Evaluation of Road Defects Effective in Accidents: A Case Study of Tehran City Mohammadreza Mehmandar 1, Mohammad Ariana 2, Ehsan Khalili 3 *, Tofigh Mobaderi 4 1 Faculty of Traffic Police, Amin Police University, Tehran, Iran 2 Tehran Traffic Police, Tehran, Iran 3 Department of Control, School of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, ...

Probabilistic Thermoelastic Effective Characteristics for Composites with Interface Defects

The main purpose of the paper is to present the results of probabilistic homogenization of the fiber-reinforced composites with stochastic interface defects. The mathematical model of the composite is based on the interphase containing all interface defects which are averaged within this region. Next, the effective modules method is applied to compute the effective thermoelastic characteristics...

Effective Management of Static Analysis Vulnerabilities and Defects