Waves in Micropolar and Non-Local Media

1992 ◽  
pp. 65-68
Keyword(s):  
Local Media ◽  
Non Local

A surface wave dispersion relation for non-local media

1978 ◽  
Vol 28 (11) ◽  
pp. 927-929 ◽  
Author(s):  
Deva N. Pattanayak ◽  
Joseph L. Birman
Keyword(s):  
Surface Wave ◽  
Dispersion Relation ◽  
Wave Dispersion ◽  
Surface Wave Dispersion ◽  
Local Media ◽  
Non Local

Publicising Malfeasance: When the Local Media Structure Facilitates Electoral Accountability in Mexico

2020 ◽  
Vol 130 (631) ◽  
pp. 2291-2327 ◽  
Author(s):  
Horacio Larreguy ◽  
John Marshall ◽  
James M Snyder
Keyword(s):  
Local Governments ◽  
Electoral Accountability ◽  
Developing Democracies ◽  
Broadcast Media ◽  
Market Structures ◽  
Local Media ◽  
Non Local ◽  
Media Market

Abstract Malfeasance in local governments is common in developing democracies. Electoral accountability could mitigate such malfeasance, but may require media market structures that incentivise profit-maximising local media to report on incumbent malfeasance. We test this claim in Mexico, leveraging plausibly exogenous variation in the pre-election release of municipal audits revealing misallocated spending and access to broadcast media. We find that each additional local media station amplifies voter punishment (rewards) of high (zero) malfeasance by up to 1 percentage point. Local media’s accountability-enhancing effects are greater when there are fewer non-local competitors and where local outlets’ audiences principally reside within their municipality.

Solitary waves in strongly non-local media with a harmonic potential

Pramana ◽  
2019 ◽  
Vol 93 (5) ◽  
Author(s):  
Yun-Zhou Sun ◽  
Qin Wu ◽  
Min Wang ◽  
Jing-Yan Li
Keyword(s):  
Solitary Waves ◽  
Harmonic Potential ◽  
Local Media ◽  
Non Local

scholarly journals Advanced materials modelling via fractional calculus: challenges and perspectives

2020 ◽  
Vol 378 (2172) ◽  
pp. 20200050
Author(s):  
Giuseppe Failla ◽  
Massimiliano Zingales
Keyword(s):  
Fractional Calculus ◽  
Long Memory ◽  
Experimental Studies ◽  
Advanced Materials ◽  
Fractional Operators ◽  
Theme Issue ◽  
Materials Modelling ◽  
Local Media ◽  
Non Local ◽  
Complex Phenomena

Fractional calculus is now a well-established tool in engineering science, with very promising applications in materials modelling. Indeed, several studies have shown that fractional operators can successfully describe complex long-memory and multiscale phenomena in materials, which can hardly be captured by standard mathematical approaches as, for instance, classical differential calculus. Furthermore, fractional calculus has recently proved to be an excellent framework for modelling non-conventional fractal and non-local media, opening valuable prospects on future engineered materials. The theme issue gathers cutting-edge theoretical, computational and experimental studies on advanced materials modelling via fractional calculus, with a focus on complex phenomena and non-conventional media. This article is part of the theme issue ‘Advanced materials modelling via fractional calculus: challenges and perspectives’.

Toward High-Resolution Low-Voltage SEM

1988 ◽  
Vol 46 ◽  
pp. 218-219
Author(s):  
Zhifeng Shao
Keyword(s):  
Low Voltage ◽  
Spherical Aberration ◽  
Chromatic Aberration ◽  
Limiting Factor ◽  
Operating Voltage ◽  
Probe Radius ◽  
Non Local ◽  
Electron Microscopes ◽  
Image Position ◽  
Scanning Electron Microscopes

Recently, low voltage (≤5kV) scanning electron microscopes have become popular because of their unprecedented advantages, such as minimized charging effects and smaller specimen damage, etc. Perhaps the most important advantage of LVSEM is that they may be able to provide ultrahigh resolution since the interaction volume decreases when electron energy is reduced. It is obvious that no matter how low the operating voltage is, the resolution is always poorer than the probe radius. To achieve 10Å resolution at 5kV (including non-local effects), we would require a probe radius of 5∽6 Å. At low voltages, we can no longer ignore the effects of chromatic aberration because of the increased ratio δV/V. The 3rd order spherical aberration is another major limiting factor. The optimized aperture should be calculated as

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