Results 81 to 90 of about 18,037 (258)

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

Spatial-temporal evolution of the current filamentation instability

open access: yesNew Journal of Physics, 2015
The spatial-temporal evolution of the purely transverse current filamentation instability is analyzed by deriving a single partial differential equation for the instability and obtaining the analytical solutions for the spatially and temporally growing ...
V B Pathak   +4 more
doaj   +1 more source

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb   +3 more
wiley   +1 more source

Exploring the effects of structure and melting on sweetness in additively manufactured chocolate

open access: yesScientific Reports
In view of the health concerns associated with high sugar intake, this study investigates methods to enhance sweetness perception in chocolate without increasing its sugar content.
Johannes Burkard   +7 more
doaj   +1 more source

Θ-graceful labelings of partial cubes

open access: yesDiscrete Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brešar, Boštjan, Klavžar, Sandi
openaire   +3 more sources

Structural performance of R.C. Beam with septage ash and hybrid fibre [PDF]

open access: yesE3S Web of Conferences
The scarcity of aggregate resources hence the rise in the incorporation of waste materials in the partial replacement of concrete. Septage ash derived from thermal faecal sludge treatment plants has been identified as having the possibility for partial ...
Rajesh Kumar K.
doaj   +1 more source

Gram‐Scale Production of Iron Oxide Rubik‐Cube Nanoparticles: New Tools for the Clinical Translation of Magnetic Hyperthermia and Magnetic Particle Imaging

open access: yesAdvanced Functional Materials, EarlyView.
This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo   +12 more
wiley   +1 more source

Cop number of partial cubes

open access: yes
The game of Cops and Robbers on graphs is a well-studied pursuit--evasion model whose central parameter, the cop number, captures the minimum number of pursuers required to guarantee capture of an adversary on a given graph. While the cop number has been determined for many classical graph families, relatively little is known about the important class ...
Crawford, Nicholas   +1 more
openaire   +2 more sources

Partial cubes and their τ-graphs

open access: yesEuropean Journal of Combinatorics, 2007
A partial cube graph is an isometric subgraph of a hypercube. On such graphs the Djoković-Winkler relation is an equivalence. The equivalence classes form the \(\tau\)-graph with edges corresponding to convex 3-node paths. It is shown that any graph is the \(\tau\)-graph of some median graph.
Klavžar, Sandi, Kovše, Matjaž
openaire   +3 more sources

On the structure of subsets of the discrete cube with small edge boundary

open access: yesDiscrete Analysis, 2018
On the structure of subsets of the discrete cube with small edge boundary, Discrete Analysis 2018:9, 29 pp. An isoperimetric inequality is a statement that tells us how small the boundary of a set can be given the size of the set, for suitable notions ...
David Ellis   +2 more
doaj   +1 more source

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