Results 171 to 180 of about 468,481 (398)

Mortar Boundary Elements [PDF]

open access: yesarXiv, 2009
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.
arxiv  

Toward Higher Energy Density All‐Solid‐State Batteries by Production of Freestanding Thin Solid Sulfidic Electrolyte Membranes in a Roll‐to‐Roll Process

open access: yesAdvanced Energy Materials, EarlyView.
The scalable production of a thin, but mechanically stable, and still flexible argyrodite solid electrolyte membrane is presented. It is fabricated and laminated onto a supporting non‐woven fabric in a concerted step using a continuous, industrially relevant, solvent‐free, roll‐to‐roll process. With this approach, a promising energy density of 670 Wh L−
Maria Rosner   +8 more
wiley   +1 more source

Investigating the construction methods of an opus vermiculatum mosaic panel [PDF]

open access: yes, 2010
From the third century BC to the second century AD small detailed central panels (emblemata) made using the opus vermiculatum technique were used as focal points in larger mosaic pavements. They were custom made in stone or terracotta trays to facilitate
Meek, Andrew   +4 more
core  

Double-tough ceramics: Optimization-supported multiscale computational design [PDF]

open access: yesarXiv
To overcome the brittleness limitation of ceramics, various toughening mechanisms have been proposed. Some of the most remarkable, especially for oxides, include the tetragonal-to-monoclinic phase transformation leading to crack shielding in zirconia, and bioinspired brick-and-mortar microstructures fostering crack deflection.
arxiv  

Convergence results with natural norms: Stabilized Lagrange multiplier method for elliptic interface problems [PDF]

open access: yesarXiv, 2017
A stabilized Lagrange multiplier method for second order elliptic interface problems is presented in the framework of mortar method. The requirement of LBB (Ladyzhenskaya-Babu\v{s}ka-Brezzi) condition for mortar method is alleviated by introducing penalty terms in the formulation.
arxiv  

Concurrent Operando Neutron Imaging and Diffraction Analysis Revealing Spatial Lithiation Phase Evolution in an Ultra‐Thick Graphite Electrode

open access: yesAdvanced Energy Materials, EarlyView.
The lithiation phases in an ultra‐thick graphite electrode are mapped operando as a function of electrode depth through a new method concurrently combining neutron imaging and diffraction. The results reveal the coexistence of lithiation phases during cycling as well as the solid electrolyte interface (SEI) formation and capacity loss through non ...
Markus Strobl   +12 more
wiley   +1 more source

Properties of super-thin layer mortar with recycled brick fines for sintered perforated block masonry

open access: yesCase Studies in Construction Materials, 2023
A super-thin layer of mortar with recycled brick fines (RBF) for sintered perforated block masonry was prepared. Six mortar mixtures were designed with different replacement ratios of RBF from 0 % to 50 %.
Qi Gao   +4 more
doaj  

Pore size distribution of an alkali activated cementitious (AACM) mortar [PDF]

open access: yes, 2018
This paper reports an investigation on the size and distribution of capillary and gel pores in an alkali activated cementitious (AACM) mortar and comparative OPC mortar. These pore properties were determined from the cumulative and differential pore
Mangat, Pal, Ojedokun, Olalekan
core  

Quantifying the Impact of Cathode Composite Mixing Quality on Active Mass Utilization and Reproducibility of Solid‐State Battery Cells

open access: yesAdvanced Energy Materials, EarlyView.
The origin of variations in solid‐state battery cell performance is explored and traced back mainly to the cathode composite mixing – leading to different fractions of electrochemically active mass. Machine‐mixed composites and the quantification of the electrochemically active mass enhance reproducibility and comparability.
Maximilian Kissel   +12 more
wiley   +1 more source

The research progress and Hotspot analysis of polymer cement mortar based on bibliometrics

open access: yesFrontiers in Materials
Ordinary cement mortar is commonly used in building engineering due to its high strength, affordability, and easy access to raw materials. However, it suffers from high shrinkage and poor impermeability, which result in reduced building service life and ...
Peng Wang, Fei Wang, Mingquan Ma
doaj   +1 more source

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