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47 search results for: atmosphere

1

What’s new in the atmosphere?

In conjunction with the 4th National Conference on Air Quality held in Montrouge on 9 and 10 October 2018, I’MTech sat down with François Mathé, a researcher in atmospheric sciences at IMT Lille Douai to ask him five questions. He gave us a glimpse of the major changes ahead in terms of measuring and monitoring […]

2

5G connecting constellations

A space-based solution to connect remote regions is soon to become reality. But using low-orbiting satellites as telecommunications relay stations means certain functionalities of current terrestrial solutions have to be reinvented. Their constant movement is the reason. For the BPI 5G NTN mmWave project, Télécom Paris scientists are tackling this technical challenge, by developing new algorithms and performance models in order to assess the limitations of the system and then optimize it.

3

Olympic and paralympic games 2024, the competition of radio frequencies

Last summer, Paris hosted the Olympic and Paralympic Games, an international event that brought with it an unparalleled need to control radio frequencies and prevent both intentional and unintentional interference. This was the role of France’s National Frequency Agency (ANFR), which was having to increase its workforce accordingly. To meet this exceptional need, Télécom SudParis recruited and trained a number of students over several months to help with controlling frequencies.

4

What is methanization?

Methanization reduces the volume of organic waste and prevents biogas produced by fermentation, including methane, a potent greenhouse gas, from being dispersed into the atmosphere. Biogas is also used to produce heat, electricity and even biomethane for injection into the natural gas grid. Yves Andrès and Khaled Loubar, researchers at IMT Atlantique, tell us more about this technology which is emerging as a key driver of energy transition.

5

Measuring pollution emissions from maritime transport

While road traffic pollution is now strictly controlled, the same cannot be said for the maritime sector, with its different fuels, engine types and regulations that differ depending on the shipping area. The EMINAV project, funded by Ademe to the tune of €258,000 for three years, aims to assess the pollution emitted by maritime transport […]

6

How long can we continue to exceed planetary limits?

By Natacha Gondran, Mines Saint-Étienne, UMR 5600 Environment, City, Society (EVS), and Aurélien Boutaud, associate researcher at UMR 5600 EVS. In recent months, several scientific papers months have drawn attention to the fact that new planetary limits have been crossed (e.g., here and here). These worrying observations have been the subject of numerous media reports. But what do scientists mean […]

8

An oasis of waste reconverted into ceramic materials

Transforming industrial waste and unused by-products could make it possible to respond to issues of scarcity for civil engineering resources, recyclability and even reducing use of fossil fuels. Doan Pham Minh, process engineering researcher at IMT Mines Albi, explains several avenues for recycling and reusing materials explored by his work. One man’s trash can be […]

9

Easier access to research infrastructure for the European atmospheric science community

Improving access to large facilities for research on climate and air quality and optimizing use are the objectives of the European ATMO-ACCESS project. Véronique Riffault and Stéphane Sauvage, researchers at IMT Nord Europe, one of the project’s 38 partner institutions, explain the issues involved. What was the context for developing the ATMO-ACCESS project? Stéphane Sauvage – The […]