Results 81 to 90 of about 144,401 (314)

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

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

Comparison of technological efficiency of gravitational devices for preparation of large diluted coal

open access: yesE3S Web of Conferences, 2017
The purpose of the work is to assess the possibility of preparation of poor washability, high-ash coals demonstrated by the example of the Apsat deposit. The following tasks have been accomplished. The analysis of modern equipment produced for washing of
Udovitsky Vladimir   +2 more
doaj   +1 more source

Chiral Microneedle Arrays With Terahertz Chiroptical Activity With Chiral‐Plasmon‐Chiral‐Phonon Resonance

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Microneedle arrays (MNAs) is a rapidly emerging technology with broad biomedical applications in drug delivery and biosensing. With sub‐millimeter dimensions and periodicity, MNAs possess geometries nearly ideal for biomedical devices operating within the terahertz (THz) spectral window.
Sang Hyun Lee   +6 more
wiley   +1 more source

Impact crusher kinematics: The dynamics of an impact swing mechanism as an analytical-mathematical model

open access: yesResults in Engineering
This study presents an analytical-mathematical model that elucidates the mechanics/kinematics of an impact crusher's impact swing mechanism. Essentially, this model comprises a series of mathematical descriptions and equations that are leveraged from ...
Dietmar Kemper   +4 more
doaj   +1 more source

Application of Multi-Criteria Decision-Making Methods in Mineral Processing—A Review [PDF]

open access: gold, 2023
Zoran Štirbanović   +3 more
openalex   +1 more source

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