Results 91 to 100 of about 7,034,149 (293)

L'ECONOMIE MAROCAINE : ANALYSE A LA LUMIERE DES THEORIES ECONOMISTES DU DEVELOPPEMENT

open access: yesRevue des Etudes Multidisciplinaires en Sciences Economiques et Sociales, 2016
La croissance soutenue de l’économie marocaine, enregistrée durant la dernière décennie peut laisser espérer un essor économique pour ce pays et un début d’amélioration du niveau de vie de sa population, au demeurant très mal classée dans les indicateurs
ABDELAZIZ kHALFAOUI
doaj   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Théories et conceptions générales

open access: yes, 1962
Théories et conceptions générales. In: L'année psychologique. 1962 vol. 62, n°1. pp.

core   +2 more sources

El conjunto habitacional Las Américas, un laboratorio para la edificación de una microsociedad

open access: yesAlteridades, 2014
En un reciente conjunto habitacional de interés social ubicado en Ecatepec, Estado de México, se observan condiciones de vida y patrones de movilidad e inmovilidad que generan cierto aislamiento de sus residentes, haciendo de éste un territorio de vida ...
Céline Jacquin
doaj  

De la sociologie aux théories littéraires

open access: yesBiens Symboliques, 2018
This article examines how research on literature was integrated into Section VI of the École pratique des hautes études (EPHE) over time, showing how research shifted from the sphere of sociology to the burgeoning pole of specialists on literature and ...
Lucile Dumont
doaj   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

Actes du colloque étudiant : Art et Politique : les enjeux de la localité dans les pratiques culturelles [PDF]

open access: yes, 2022
Cette publication rassemble cinq des neuf propositions retenues pour la septième édition du colloque étudiant du LABORATOIRE / ART ET SOCIÉTÉ / TERRAINS ET THÉORIES (L/AS/TT). Ce colloque tenu annuellement depuis 2014, mais ajourné en 2020 pour cause
Champagne, Lysandre   +2 more
core  

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Révision automatique de théories écologiques

open access: yes, 2018
À l’origine, ce sont des difficultés en biologie évolutive qui ont motivé cette thèse. Après des décennies à tenter de trouver une théorie basée sur la sélection capable de prédire la diversité génomique, les théoriciens n’ont pas trouvé d’alternatives ...
Desjardins-Proulx, Philippe
core   +1 more source

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