Results 11 to 20 of about 96,254 (179)

Influence de la dissipation énergetique sur l'efficacité de la flottation à air dissous : analogie avec la floculation [PDF]

, 1996
Les flottateurs à air dissous sont classiquement dimensionnés à partir de deux paramètres: le rapport mA/mS des masses d'air et de solides en présence et le temps de contact entre phases. Une série d'essais effectués sur cinq différentes unités continues
Ben Aïm, R., Elmaleh, S., Gallinari, F.
core   +1 more source

Énergie et climat : défis et innovations

Comptes Rendus. Géoscience, 2020
Access to energy is a key factor in the economic development of countries. We will first examine the evolution of different ways to access to energy and their correlations with world population and countries’ GDP.
Roux, Didier
doaj   +1 more source

Comment économiser la ressource eau en agriculture?

Revue Internationale des Économistes de Langue Française, 2020
L ' irrigation représente plus de 70% de l ' utilisation d ' eau au niveau mondial et cette activité peut non seulement subir la rareté croissante de l ' eau mais aussi contribuer à sa raréfaction.
Catherine Benjamin, Alejandra Giraldo Hurtado   +1 more
doaj   +1 more source

Space‐Dependent Sobolev Gradients as a Regularization for Inverse Radiative Transfer Problems

Mathematical Problems in Engineering, Volume 2016, Issue 1, 2016., 2016
Diffuse optical tomography problems rely on the solution of an optimization problem for which the dimension of the parameter space is usually large. Thus, gradient‐type optimizers are likely to be used, such as the Broyden‐Fletcher‐Goldfarb‐Shanno (BFGS) algorithm, along with the adjoint‐state method to compute the cost function gradient.
Y. Favennec, F. Dubot, D. Le Hardy, B. Rousseau, D. R. Rousse, Maria Gandarias   +5 more
wiley   +1 more source

Optimizing gasification in downdraft fixed-bed gasifier through experimental and kinetic modeling

Case Studies in Thermal Engineering
Gasification is an effective way of converting biomass into electricity. However, determining optimal conditions to reach higher temperature gradients and ensure thermal stability of the reactors for syngas production is challenging.
Hamado Ouedraogo, Sayon dit Sadio Sidibe, Yohan Richardson, Laetitia Zoungrana   +3 more
doaj   +1 more source

Advancing small-scale biomass gasification (10–200 kW) for energy access: Syngas purification, system modeling and the role of artificial intelligence-A review

Energy Conversion and Management: X
Agro-industrial and food industries produce significant lignocellulosic bio-waste, which has a negative impact on the environment if poorly managed. Gasification provides a solution by converting this waste into energy.
Hamado Ouedraogo, Sayon Dit Sadio Sidibe, Yohan Richardson   +2 more
doaj   +1 more source

Choix multicritère de procédés d'épuration des eaux usées municipales [PDF]

, 2000
Les stations d'épuration des eaux usées municipales du Québec, comme ailleurs au Canada et aux États Unis, sont en général peu efficaces sur le plan énergétique.
Blais, J. F., Kibi, N., Martel, J. M., Sasseville, J. L.   +3 more
core   +1 more source

Improving optical efficiency of linear Fresnel collectors in the Sahel via position and length adjustment

Solar Compass
Linear Fresnel concentrators are promising technologies for solar thermal applications, but their performance is often hindered by end losses and inefficiencies related to receiver design and placement. This study aimed to enhance LFC optical performance
Souwera Stan Lionnel Somda, Kokouvi Edem N’Tsoukpoe   +1 more
doaj   +1 more source

Interactions of rare earth elements with living organisms and emerging biotechnical applications

PLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1251-1274, September 2025.
Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey, Shagufta Iqbal, Annamaria De Rosa, Jessica A. Caley, Anna H. Kaksonen, Denys Villa‐Gomez, Caitlin S. Byrt   +6 more
wiley   +1 more source

An Innovative System for the Treatment of Rising Dampness in Buildings Located in Cold Climates

Energies, 2021
Signs of wetness in housing are a significant obstacle to the renovation and energy rehabilitation of old and energy-intensive heritage buildings, especially in cold climates.
Geoffrey Promis, Omar Douzane, Daniel R. Rousse, Thierry Langlet   +3 more
doaj   +1 more source