Results 71 to 80 of about 414,665 (293)

Mortar Boundary Elements [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2010
We establish a mortar boundary element scheme for hypersingular boundary integral equations representing elliptic boundary value problems in three dimensions. We prove almost quasi-optimal convergence of the scheme in broken Sobolev norms of order 1/2.
Healey, Martin, Heuer, Norbert
openaire   +5 more sources

Revealing the Hidden Role of Cd in p‐Type Mg3Sb2: Enhanced Thermoelectric Performance by Grain Boundary Segregation Engineering

open access: yesAdvanced Functional Materials, EarlyView.
The hidden role of Cd segregation at grain boundaries is revealed in p‐type Mg3Sb2 by atom probe tomography and other advanced characterizations. Grain boundary Cd enrichment suppresses the SbMg+ hole‐killer formation and lowers potential barriers, enhancing electrical conductivity.
Zhou Li   +12 more
wiley   +1 more source

Recycled Glass Fiber Reinforced Polymer Composites Incorporated in Mortar for Improved Mechanical Performance [PDF]

open access: yes, 2017
Glass fiber reinforced polymer (GFRP) recycled from retired wind turbines was implemented in mortar as a volumetric replacement of sand during the two phases of this study.
Englund, Karl   +4 more
core  

Residual‐Lithium‐to‐LiF Conversion Enables a LiF–Fluorinated Carbon Interphase for Reconstruction‐Resistant Ni‐Rich Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
A fluorine‐rich acrylate monomer (PFHEA) was solvent‐free applied to NCM90 and thermally decomposed under Ar to convert residual lithium into LiF and form a pre‐built LiF/fluorinated amorphous carbon (LiF/FC) interphase. The LiF/FC layer suppresses NiO rock‐salt reconstruction and microcrack propagation, lowers interfacial resistance, and improves Li ...
Pangyu Kim   +6 more
wiley   +1 more source

Normal cohesive strength of cement mortar in the masonry [PDF]

open access: yesИнженерно-строительный журнал, 2012
Normal cohesion of stone and mortar and strength to stretch of mortar in masonry joints depend on many factors that are hardly taken into account in evaluating the normal cohesive strength of stone and mortar.
V.N. Derkach
doaj  

Micro-geophysics to assess the integrity of some statues in the Museo Egizio of Turin, Italy [PDF]

open access: yes, 2005
On request of the Soprintendenza in charge of the Museo Egizio of Turin, a quite large number of tests have been performed on four statues of the museum to assess their integrity both for practical (moving the statue) and archaeological purposes ...
Godio, Alberto   +2 more
core  

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

A zero-thickness mortar / Interface formulation with application to fracture mechanics [PDF]

open access: yes, 2019
A zero-thickness mortar/interface element formulation is briefly described and demonstrated. This element may be considered as an extension of traditional zero-thickness interface element, in order to represent material interfaces located in between ...
Carol, Ignacio   +1 more
core   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

More Than an Open Book [PDF]

open access: yes, 2017
When information is as close as the nearest web browser, are brick-and-mortar libraries still necessary?
Davis, Laura
core   +1 more source

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