A new type of greenhouse with linear Fresnel lenses in the cover performing as a concentrated photovoltaic (CPV) system is presented. The CPV system retains all direct solar radiation, while diffuse solar radiation passes through and enters into the greenhouse cultivation system. The removal of all direct …

Refill City, established February 2006, is a company which specializes in the refill of ink cartridges. Not only do they offer ink cartridge refills to their consumers, but they also have their own cartridges that can be purchased. Nowadays they are a growing company, but they have not exported yet. …

This article is Maarten Rothmans analysis of three strategies of political violence. The three strategies are terrorism, which works by way of fear; propaganda by deed, which works by way of inspiration; and provocation by violence, which combines elements of both. Rothman argues that terrorism specialists …