Results 11 to 20 of about 5,696,429 (330)

Limites à l'adoption du semis direct sous couverture végétale par les agriculteurs familiaux en Amazonie brésilienne [PDF]

open access: yes, 2012
Afin de favoriser l'abandon du brûlis par les agriculteurs familiaux du front pionnier amazonien, un projet franco-brésilien a tenté entre 2006 et 2010 de promouvoir une adaptation locale des techniques de semis direct sous couverture végétale. L'article
Goulet, Frédéric   +2 more
core   +4 more sources

Innovation et action collective : le semis direct des cultures pluviales au Moyen Sébou (Maroc) [PDF]

open access: yes, 2015
Les exploitations familiales des pays du Sud, au foncier cultivable souvent limité, doivent pouvoir entretenir la fertilité de leurs terres si elles veulent améliorer leur productivité. L'agriculture de conservation et le semis direct sans travail du sol
Dugué, Patrick   +3 more
core   +3 more sources

La diffusion du semis direct au Brésil, diversité des pratiques et logiques territoriales : l’exemple de la région d’Itaipu au Paraná

open access: yesConfins, 2011
No-till or direct seeding is a production system based on non-ploughing. It incorporates a range of farming practices that protect agricultural soils from erosion, reduce fuel consumption and could increase crop yields.
François Laurent   +4 more
doaj   +2 more sources

Le semis direct sous couverture végétale : une opportunité de mise en place rapide du cotonnier en culture pluviale au Mali

open access: yesInternational Journal of Biological and Chemical Sciences, 2020
En zone soudano-sahélienne, la productivité des cultures est limitée par la disponibilité de l’eau et la fertilité des sols. Le cotonnier en est particulièrement affecté lors de sa culture L’objet de cette étude est d’évaluer l’effet du semis direct sous
F. Sissoko, Sidiki Diarra, M. Traoré
semanticscholar   +1 more source

SVO: Fast semi-direct monocular visual odometry [PDF]

open access: yes2014 IEEE International Conference on Robotics and Automation (ICRA), 2014
We propose a semi-direct monocular visual odometry algorithm that is precise, robust, and faster than current state-of-the-art methods. The semi-direct approach eliminates the need of costly feature extraction and robust matching techniques for motion estimation.
Forster Christian   +2 more
openaire   +3 more sources

The semi-direct product of Poisson G-spaces [PDF]

open access: yesJournal of Geometry and Physics, 2021
The notion of semi-direct product of Poisson $G$-spaces is applied to illuminate examples arising in spin-extensions of Ruijsenaars models.
openaire   +3 more sources

Learning People Trajectories Using Semi-directional Statistics [PDF]

open access: yes2009 Sixth IEEE International Conference on Advanced Video and Signal Based Surveillance, 2009
This paper proposes a system for people trajectory shape analysis by exploiting a statistical approach which accounts for sequences of both directional (the directions of the trajectory) and linear (the speeds) data. A semi-directional distribution (AWLG - Approximated Wrapped and Linear Gaussian) is used with a mixture to find main directions and ...
CALDERARA, Simone   +2 more
openaire   +2 more sources

Direct sums of semi-projective modules

open access: yesColloquium Mathematicum, 2012
We investigate when the direct sum of semi-projective modules is semi-projective. It is proved that if R is a right Ore domain with right quotient division ring Q not equal R and X is a free right R-module then the right R-module Q circle plus X is semi-projective if and only if there does not exist an R-epimorphism from X to ...
Tutuncu, Derya Keskin   +2 more
openaire   +2 more sources

NONUNIVERSALITY IN SEMI-DIRECTED BARABÁSI–ALBERT NETWORKS [PDF]

open access: yesInternational Journal of Modern Physics C, 2012
In usual scale-free networks of Barabási–Albert type, a newly added node selects randomly m neighbors from the already existing network nodes, proportionally to the number of links these had before. Then the number n(k) of nodes with k links each decays as 1/kγ where γ = 3 is universal, i.e. independent of m.
Sumour, M. A., Radwan, M. A.
openaire   +2 more sources

SEMI-DIRECT PRODUCTS AND BOL LOOP

open access: yesDemonstratio Mathematica, 1994
The authors first discuss under what circumstances semi-direct products of loops can be formed and then show exactly when a loop is a semi-direct product of a pair of subloops. It turns out that some ad hoc constructions in the literature are in reality semi-direct products.
Goodaire, Edgar G., Robinson, D. A.
openaire   +1 more source

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