Stand-alone power systems based on renewable energy sources are used to replace generators based on fossil fuels. Those renewable power systems also require Energy Storage Devices (ESD) interfaced by a charger/discharger power converter, which consist of a bidirectional DC/DC converter, and a DC bus. This paper proposes a single sliding-mode controller (SMC) for the charger/discharger DC/DC con...

This paper provides an empirical framework to evaluate regulatory discretion and apply it to California water quality regulation. We identify and estimate an adverse selection model of the regulator-discharger interaction to measure the extent to which the regulator’s environmental preferences and administrative or political costs affect penalties and compliance. We find that if the regulator p...

In order to solve the problem of uniform and precise fertilizer discharge, based on experimental analysis uneven nature single-screw a double arc groove screw discharger was designed principle half-cycle superposition discharge curve. The amount instantaneous characteristics were theoretically analyzed, factors affecting uniformity obtained, taking pitch S, radius Rp center distance as test fac...

Distributed power-supply systems are an attractive solution to meeting the requirements (redundancy, modularity, battery backup, etc.) for the next generation of power-supply systems. In addition, the normalization regarding power factor and total harmonic distortion (THD) makes it necessary to include the power-factor correction in the input stage in those architectures. This paper presents a ...

A b s t r a e t ~ l i b r a t i o n studies were performed on the Davis Rotating-drum Universal-size-cut Monitoring (DRUM) sampler utilizing fluorescent monodisperse aerosols of polystyrene latex. The DRUM sampler is an eight-stage Lundgren-type rotating drum cascade impactor utilizing a series of single round jets for each stage including low-pressure stages. The DRUM sampler operates continuo...

The absence of compensation for third parties who are the victims of residual (that is, permitted) pollution can entail a violation of Rawls's second principle of justice. Environmental pollution, insofar as it is an uncharged cost, may lead also to an economically inefficient distribution of goods and services. Radioactivity and radiation dose are forms of pollution for which a control philoso...