Results 181 to 190 of about 2,923,911 (330)

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel   +6 more
wiley   +1 more source

La minería del hierro en Cehegín

open access: yesAlquipir, 2007
La minería empieza con la propia historia del municipio de Cehegín, con los nativos en al Prehistoria hasta la fecha actual. A continuación desarrollaremos la misma con los datos obtenidos de los archivos y las publicaciones de este tema.
José María Alcaráz Pastor
doaj  

Étiquettes écologiques pour les matières textiles. Dosage de métaux lourds [PDF]

open access: yes, 2007
En este trabajo se realiza una breve descripción de las diferentes etiquetas ecológicas, centrándose en este caso en la dos ecoetiquetas textiles más importantes: EU Eco-label y Öeko Tex estándar 100.
Buscio, Valentina   +2 more
core  

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

Eficiencia y futuros en las bolsas de metales [PDF]

open access: yes, 1992
Se presenta el marco general de funcionamiento de los mercados a futuro, debido a que se entiende que es una modalidad o mecanismo relativamente desconocido en nuestro medio. Luego, se presenta el marco teórico relevante y que se refiere, principalmente,
Aguirre Guardia, Mario   +2 more
core  

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen   +3 more
wiley   +1 more source

Evaluación de la calidad ambiental de los sedimentos marinos en el sistema de bahías de Caldera (27°S), Chile

open access: yesLatin American Journal of Aquatic Research, 2014
Se midió la concentración y distribución de Cu, Ni, Pb, V, Fe, Al y Zn en los sedimentos marinos en cuatro bahías (Caldera, Calderilla, Inglesa y Salada) de la Región de Atacama, Chile.
Jorge Valdés, Alexis Castillo
doaj  

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

Metal-on-metal hips

open access: yesMaturitas, 2012
Pandit, H, Gill, H, Murray, D
openaire   +3 more sources

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