17 Questions 441 Answers 0 Followers
Questions related from Bachir Achour
In the history of the Earth, climates have evolved depending on natural phenomena more or less cyclical. What do you think ?
07 July 2016 774 7 View
Can we make a connection with climate change?
07 July 2016 7,802 3 View
Comparing drinking water to mineral water is not a new idea, but so far there have been few studies to directly compare drinking water and mineral water by taking into account all factors primary...
07 July 2016 8,568 26 View
These are triggered abruptly imbalances in the natural environment, large-scale, with serious consequences in the short and long term on the environment.
07 July 2016 8,354 6 View
On one hand, this comparison seems normal because fresh water, like oil, is in limited amounts on the planet. On the other hand, this comparison is meaningless because, unlike oil, fresh water is...
07 July 2016 4,267 10 View
Lifetime of the activated carbon
07 July 2016 2,497 4 View
there are life forms slowed and dried such as seeds or spores.
07 July 2016 4,295 3 View
Lifetime of spring water
07 July 2016 8,339 6 View
Urban water
07 July 2016 1,890 0 View
Pollution of an aquatic system is characterized by the change in the initial population structure
07 July 2016 10,119 5 View
This is to determine the inverse of a Laplace transform
07 July 2016 3,505 0 View
Difference between Nanofitration membrane and reverse osmosis membrane
07 July 2016 6,691 3 View
What is the most appropriate disinfection process to inactivate or destroy pathogenic microorganisms in water systems? Is this based on need
07 July 2016 3,551 4 View
This is the title of a book authored by Alain Prinzhofer and Eric Deville, both geologists, questions and answers with strong arguments on real and positive possibilities that could offer the use...
06 June 2016 8,523 6 View
Are there one or more methods for calculating the Manning coefficient in artificial canals ?
06 June 2016 3,764 0 View
What is Potential Renal Acid Load (PRAL) ?
06 June 2016 3,289 0 View
In many practical cases, one affects arbitrarily a constant value for Chezy’s coefficient. It is a physically unjustified approach, because Chezy’s coefficient varies with flow parameters.
10 October 2013 4,711 1 View
