Results 101 to 110 of about 333,594 (357)

Economic Security of Metallurgical Enterprises in the Context of Sustainable Development: Challenges and Opportunities [PDF]

open access: yesЕкономічний вісник Державного вищого навчального закладу Український державний хіміко-технологічний університет
The article examines the current challenges to the economic security of Ukrainian metallurgical enterprises and ways to increase their sustainability in the context of sustainable development.
Tetiana Pozhuieva, Natalia Bobko
doaj   +1 more source

Determination of 210Po in air filters from metallurgic industry [PDF]

open access: hybrid, 2019
Grzegorz Szaciłowski   +2 more
openalex   +1 more source

Hydrogel‐Based Vat Photopolymerization of Ceramics and Metals with Low Shrinkages via Repeated Infusion Precipitation

open access: yesAdvanced Materials, EarlyView.
This work introduces an in situ precipitation strategy for the hydrogel‐based vat photopolymerization of architected ceramics and metals with reduced shrinkages and improved densities. Repeated infusion‐precipitation significantly increases metal loading within the hydrogels, which improves part quality after thermal conversion.
Yiming Ji   +3 more
wiley   +1 more source

TECHNOLOGICAL CHANGES IN SILVER PRODUCTION AFTER THE SPANISH CONQUEST IN PORCO, BOLIVIA CAMBIOS TECNOLÓGICOS EN LA PRODUCCIÓN DE PLATA DESPUÉS DE LA CONQUISTA ESPAÑOLA EN PORCO, BOLIVIA

open access: yesBoletín del Museo Chileno de Arte Precolombino, 2010
Over the last decade, the Proyecto Arqueológico Porco-Potosí has investigated the Bolivian mining center of Porco in order to examine silver production under the Inka, Spanish, and Republican regimes.
Mary Van Buren, Claire R Cohen
doaj  

Strain Engineering of Magnetoresistance and Magnetic Anisotropy in CrSBr

open access: yesAdvanced Materials, EarlyView.
Biaxial compressive strain significantly enhances magnetoresistance and critical saturation fields in thin flakes of the 2D magnet CrSBr, along all three crystallographic axes. First‐principles calculations link these effects to strain‐induced increases in exchange interactions and magnetic anisotropy.
Eudomar Henríquez‐Guerra   +19 more
wiley   +1 more source

The Urnfield period Dragomelj I hoard: archaeological and chemical investigations

open access: yesArheološki Vestnik
The hoard with over 86 kg of metal products unearthed in the settlement at Dragomelj is dated to Ha B1 and complements the remains of foundry activities in the nearby settlement at Podgorica.
Peter Turk, David J. Heath, Tea Zuliani
doaj   +1 more source

Additively Manufacturable High‐Strength Aluminum Alloys with Coarsening‐Resistant Microstructures Achieved via Rapid Solidification

open access: yesAdvanced Materials, EarlyView.
Rapid solidification in laser additive manufacturing facilitates the precipitation of metastable phases in aluminum alloys. These metastable phases significantly enhance the strength by forming a high‐volume fraction of precipitates with an order of magnitude reduced sizes and smaller interspacing, effectively impeding dislocation motion. Consequestly,
S. Mohadeseh Taheri‐Mousavi   +10 more
wiley   +1 more source

Mechanical dissection in an introductory engineering design module [PDF]

open access: yes, 2010
The introductory design module for first year students in the Department of Mechanical Engineering at the University of Strathclyde uses mechanical dissection as a focus for learning activities that seek to integrate engineering science with the prior ...
Jenkins, Peter, McLaren, A.J.
core  

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

Materials data handbook: Aluminum alloy 7075 [PDF]

open access: yes
A summary of the materials property information on aluminum alloy 7075 is presented. The scope of the information includes physical and mechanical properties of the alloy at cryogenic, ambient, and elevated temperatures.
Muraca, R. F., Whittick, J. S.
core   +1 more source

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