Alexandre Richardson, Laurent Cirio, Laurent Martoglio and Odile Picon
A numerical and experimental analysis of an original inverted microstrip transmission line on standard Silicon substrate for telecommunication applications is proposed…
Abstract
A numerical and experimental analysis of an original inverted microstrip transmission line on standard Silicon substrate for telecommunication applications is proposed. Simulations have been made using a time domain method such as Finite‐Difference‐Time‐Domain method (FDTD) to obtain results on a large frequency band. However, the main difficulty of the FDTD is due to the absorbing boundary conditions (ABC) which must be perfectly matched to the inhomogeneous media with losses. Indeed, the fine dimensions prescribed by the studied circuit lead to a long computational time. To reduce the FDTD grid but also to simulate inhomogeneous medium with losses, an efficient and broadband ABC has to be implemented because classical ones are not suitable to simulate a lossy substrate. For this reason, a specific uniaxial perfectly matched layers (UPML) is proposed. We compare numerical results obtained with FDTD, HP Momentum and experimental ones to show the validation of the method applied to lossy media.
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– This paper aims to show the representation of entrepreneurship in movies (blockbusters) as a source of influence on popular representations.
Abstract
Purpose
This paper aims to show the representation of entrepreneurship in movies (blockbusters) as a source of influence on popular representations.
Design/methodology/approach
The author uses semiotics to contrast dominant representations in popular movies about Chanel with the reality of her professional life as can be found in archives about the fashion world and couture workers.
Findings
The changes in the account of the entrepreneur's success may disregard important elements such as the importance of collective work and the role of social history on entrepreneurial ventures.
Practical implications
Is entrepreneurship really a source of information in the general representations of what it is to be an entrepreneur and what explains the success and failure of entrepreneurial venture when we observe that popular representations are so far away from what research can describe and interpret using primary data?
Originality/value
By displaying the discrepancy between entrepreneurship theory and popular representations, especially in the movies, one may be able to grasp some of the reasons why entrepreneurship needs more in-depth analysis of actors' representations in relation to the image of popular entrepreneurs in the public eye.