Results 71 to 80 of about 3,504,534 (351)

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Using a mixture of polymers and Nano-silica to protect the walls of Al-Ahmadi Mosque in Tanta from the effect of moisture

Maǧallaẗ Al-Turāṯ wa Al-Taṣmīm
The study aims to conduct an experimental study through which the efficiency and effectiveness of different methods and materials, whether known traditional or modern materials, are evaluated by making different experimental formulations of these ...
Prof. Mohamed Kamal Khalaf, Assist.Prof.Dr.AhmedAbdelazim Ahmed, Researcher.BassemLotfy Hussien Mansour   +2 more
doaj   +1 more source

Hontoria’s stone (Burgos, Spain): Characteristics and weathering [PDF]

, 1994
This paper deals with petrological and petrophysical features of the Hontaria's stone, Burgos (Spain), with which many important monuments were built in northern Spain, in orderr to establish a basis for individual monument restoration.
Calvo Pérez, Benjamín, Grado, Aurelio de, Puche Riart, Octavio   +2 more
core  

Impact of Pre‐Oxidation Treatments on a Recycled MgO/Steel‐Composite as Carbon Free Anode in Aluminum‐Electrolysis Environments

Advanced Engineering Materials, EarlyView.
Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser, Felix Drechsler, Nora Brachhold, Florian Kerber, Christos G. Aneziris   +4 more
wiley   +1 more source

Evidence from Escalera al Cielo: Abandonment of a Terminal Classic Puuc Maya Hill Complex in Yucatán, Mexico [PDF]

, 2012
This is a postprint (author's final draft) version of an article published in Journal of Field Arhcaeology in 2012. The final version of this article may be found at http://dx.doi.org/10.1179/0093469012Z.00000000025 (login may be required).
Bey, George J., III, Gallareta Negrón, Tomás, Parker, Evan, Simms, Stephanie R.   +3 more
core   +2 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

“The face of the stone“: Traditional construction and tectonic innovation [PDF]

, 2013
Through the tectonic metaphor will investigate the relationship between the construction and expression in modern stone facade, meant as the first element of the representation and relationship between the building organism and the city.
Barone, Francesca
core  

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

The "greening" of natural stone buildings: quartz sandstone performance as a secondary indicator of climate change in the British Isles?

, 2011
A number of recent studies have explored the impact of climate change on natural building stones. Because of its sensitivity to change, sandstone can be seen as having a predictable, recognisable and sustained response to changes in system inputs that ...
S. Mccabe, Bernard J. Smith, C. Adamson, D. Mullan, D. McAllister   +4 more
semanticscholar   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source