Results 121 to 130 of about 1,539,435 (245)

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
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

Le cercle de pierres de Sohandi II (compte rendu de fouilles 1984). [PDF]

open access: yes, 1987
El túmulo de piedras de Sohandi II excavado en Julio de 1984, está formado por bloques de pudinga rústicos rodeando una estructura central muy primitiva.
Jacques Blot
core  

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

Evaluación geoquímico orgánica de carbonesde los mantos inferiores de la mina Paso Diablo, Cuenca del Guasare: potenciales rocas madres de petróleo

open access: yesRevista Técnica de la Facultad de Ingeniería, 2016
Se evaluaron 6 muestras compuestas de carbón, representativas de los mantos 4M (afloramiento, área Los Aceitunos) y 2N, 3H, 3I, 3K y 3M (pozo PSD-032A, área Paso Diablo Sur) de la Formación Marcelina, mina Paso Diablo, municipio Mara, estado Zulia ...
M. Escobar   +6 more
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

Enfoque holístico para mejorar la utilización de la energía de Jatropha curcas L

open access: yesRevista Técnica de la Facultad de Ingeniería, 2015
Se presenta enfoque holítico de la utilización de la energía de Jatropha curcas L., fácilmente adaptable a cultivos similares. El enfoque consiste de molimiento y maceración caliente, seguida por ondas de choque de presión generadas con altas descargas ...
Anna MarouÅ¡ková, Petr Braun
doaj  

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner   +22 more
wiley   +1 more source

¿Por qué implementar estudios de largo plazo en el bosque seco tropical del Caribe colombiano?

open access: yesIntropica, 2012
Los ecosistemas secos ocupan casi la mitad del área total de franja tropical y están entre los más amenazados por las actividades humanas a escala global.
Esteban Álvarez   +18 more
doaj  

Simulación de curvas de ruptura para la adsorción de paracetamol a partir de datos obtenidos en estudio termodinámico y cinético [PDF]

open access: yes, 2013
Los productos farmacéuticos considerados, en algunos casos, como contaminantes emergentes, poseen, en general, una alta estabilidad química y térmica y además son biológicamente activos.
Cordero, Tomás   +5 more
core  

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

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