The idea is to make a heated filament the cathode, so electrons are ejected from the hot surface by thermionic emission. These are forced into a spiral path using a perpendicular magnetic field.

In accordance with Article 4, paragraph 19, of the Paris Agreement, all Parties should strive to formulate and communicate long-term low greenhouse gas emission development strategies, mindful of ...

More Canadians and Canadian businesses each year are switching to zero-emission vehicles (ZEVs), like electric vehicles, taking advantage of the many economic and environmental benefits and the ...

Canada’s comprehensive strategy on zero-emission vehicles (ZEVs) includes policies and actions aimed at reducing key barriers and making it easier for Canadians to purchase ZEVs. Actions to increase ...

Renewable energy, like wind power, is gradually replacing coal in many EU countries The EU has adopted ambitious new targets to curb climate change, with a pledge to make them legally binding ...

A Spanish-Italian research group has developed a solid-state thermal-to-electric energy converter based on hybrid thermionic-photovoltaics (TIPV) for different applications. It consists of a three ...

On 16 March 2022, the Queensland Government released Queensland's Zero Emission Vehicle Strategy 2022–2032 and the first Zero Emission Vehicle Action Plan 2022–2024. We plan to accelerate Queensland ...

Following these hearings, the High Court set formal cut-off dates for new claimants joining the diesel emission cases – some of these deadlines have now passed, while others are coming up later this ...

To be sure, there are still applications for thermionic emission, especially in power electronics and specialized switching applications. But by and large, progress has left vacuum tubes in a ...