Search results1 – 2 of 2
The Peruvian Canon system was designed to collect a percentage of taxed profits from the country's natural resource industries and redistribute these funds into…
The Peruvian Canon system was designed to collect a percentage of taxed profits from the country's natural resource industries and redistribute these funds into communities that are important to the natural resource extraction process. However, these communities often lack significant basic resources, such as adequate public health facilities and basic medical supplies. The paper aims to discuss these issues.
This analysis focusses on the political and economic factors within Peru's Canon distribution system and proposes public policy strategies that could more effectively ensure natural resource profits reach extraction zone communities.
Policymakers should consider the implementation of policies that require a transparent Canon collection and distribution system. Policies should be developed that mandate an adequate percentage of Canon funds for investment in Peru's public health system.
A significant portion of the available literature on local conditions within natural resource extraction communities and systematic empirical data available are lacking.
This analysis can lead to the development and implementation of public policy that more effectively targets improvements throughout Peru's natural resource communities.
Purpose — The purpose of this paper is to present a new nonstationary, random vibration method for the analysis of coupled vehicle‐bridge systems with vertical track…
Purpose — The purpose of this paper is to present a new nonstationary, random vibration method for the analysis of coupled vehicle‐bridge systems with vertical track irregularity. Design/methodology/approach — The vehicle is modeled using a two‐layer suspension system and hence possesses ten degrees of freedom. The bridge is simulated using a Bernoulli‐Euler beam and the longitudinal track irregularity is taken as a uniformly modulated, evolutionary random process that includes phase lags between successive wheels. The pseudo‐excitation method (PEM) is extended to include time‐dependent systems for the first time, thus making it possible to compute the nonstationary random vibration of coupled vehicle‐bridge systems. Additionally, the precise integration method (PIM) is adapted to simulate continuous vehicle force variations in both time and space. Findings — The accuracy and effectiveness of the proposed PEM‐PIM method are confirmed by comparisons with Monte Carlo simulations. The influence of vehicle speed and track irregularity on system random responses are evaluated, and it is shown that the first and second derivatives of the track irregularity should not be arbitrarily ignored, as is usually the case. Originality/value — PEM and PIM are relatively new tools for the numerical solution of complicated random vibration problems and direct dynamic analyses. Until now, they have only been applied to time‐independent systems. However, it is shown herein that the proposed PEM‐PIM method performs nonstationary random vibration analysis of time‐dependent coupled vehicle‐bridge systems efficiently and accurately.