Results 41 to 50 of about 522,228 (199)
El presente artículo pretende aproximar al lector al debate sobre los derechos fundamentales y las tensiones constitucionales del conflicto entre las comunidades indígenas de Colombia y las fuerzas armadas de este país.
Delia Constanza Bechara Llanos
doaj +3 more sources
Remuneration of Ancillary Services from Microgrids: A Cost Variation-Driven Methodology
Microgrids (MGs) have emerged as pivotal players in the energy transition by enabling the efficient integration of distributed energy resources and the provision of ancillary services to the power system.
Yeferson Lopez Alzate +2 more
doaj +1 more source
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar +6 more
wiley +1 more source
The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh +3 more
wiley +1 more source
Mechanical properties of rosemary (Rosmarinus officinalis L.) stalks
Rosemary is an aromatic herb exported by Colombia. It is a perennial aromatic bush that can grow up to 2 m high. Its leaves are narrow, thin, shiny and strongly scented; the stems are woody and resinous, branched and slightly bitter.
César Andrés Arévalo +2 more
doaj
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh +6 more
wiley +1 more source
11-S: The Overflows of The New Global Empire
Undoubtedly, 9/11 represents a moment of inflection in the history of the United States. With the exception of the invasion of the air space back in time in faraway Pearl Harbour, the United States had never been the object of attacks in its territory. 9/
Miriam Carballo
doaj
Textura y Estrés: las aplicaciones olvidadas de la Difracción de Rayos X en materiales
La cristalografía de rayos X resulta una técnica analítica fundamental para el estudio exhaustivo de la estructura cristalina de los materiales. A pesar de su enorme relevancia tanto a nivel científico como industrial, su cobertura respecto a análisis ...
Aitor Larrañaga Varga
doaj
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source

