Results 111 to 120 of about 1,002,963 (278)

Comparative evaluation of different composite wall materials for encapsulation of Justicia carnea (Brazilian plume) leaves extract [PDF]

open access: yesExploration of Foods and Foodomics
Aim: The study evaluated the influence of different wall materials on the bioactive compounds in encapsulated Justicia carnea leaves extract. Methods: Combinations of gelatin with maltodextrin or starch, and gum arabic with maltodextrin or starch were ...
Oluwatoyin Ajoke Oladeji   +1 more
doaj   +1 more source

Impulse Gauss Curvatures [PDF]

open access: yes, 2004
In Riemannian (differential) geometry, the differences between Euclidean geometry, elliptic geometry, and hyperbolic geometry are understood in terms of curvature.
Iseri, Howard
core   +1 more source

Polymer‐Grafted Cu(II) Metal–Organic Polyhedra as Scalable, Melt‐Processable Porous Materials

open access: yesAdvanced Science, EarlyView.
The use of a direct synthetic route to obtain polymer‐grafted Cu(II)‐based metal–organic polyhedra gives rise to a low‐cost and scalable cage. This material combines low‐temperature melting, achieving phase changes while preserving cage integrity, and high CO2 uptake exceeding 0.6 mmol g−1.
Alba Cortés‐Martínez   +6 more
wiley   +1 more source

Generalizing the entanglement entropy of singular regions in conformal field theories

open access: yesJournal of High Energy Physics, 2019
We study the structure of divergences and universal terms of the entanglement and Rényi entropies for singular regions. First, we show that for (3 + 1)-dimensional free conformal field theories (CFTs), entangling regions emanating from vertices give rise
Pablo Bueno   +2 more
doaj   +1 more source

6.1% Volumetric Negative Thermal Expansion Induced by the Reversible Reconstructive Phase Transition in Pb‐Free Bi1−xLnxCoO3 (Ln: Lanthanoid)

open access: yesAdvanced Science, EarlyView.
Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai   +10 more
wiley   +1 more source

Microstructural analysis and densification of ordinary Portland cement mortars incorporated with minimal nano-TiO2: intermixing and surface coating on both fresh and hardened surfaces

open access: yesDiscover Materials
The present study investigated the microstructural properties of ordinary Portland cement (OPC)-modified with minimum dosage of nano TiO2 on fresh and hardened cement mortar surfaces and intermixed samples.
N. Avinash Reddy, P. Sri Chandana
doaj   +1 more source

Connectivity and $W_v$-Paths in Polyhedral Maps on Surfaces

open access: yesDiscret. Comput. Geom., 2016
The $W_v$-Path Conjecture due to Klee and Wolfe states that any two vertices of a simple polytope can be joined by a path that does not revisit any facet. This is equivalent to the well-known Hirsch Conjecture. Klee proved that the $W_v$-Path Conjecture is true for all 3-polytopes (3-connected plane graphs), and conjectured even more, namely that the ...
Michael D. Plummer   +2 more
openaire   +4 more sources

Grain Boundary Structure Ordering via Electroshock Treatment Enhances Strength‐Ductility Synergy

open access: yesAdvanced Science, EarlyView.
Electroshock treatment triggers atomic rearrangement, transforming disordered grain boundaries into ordered states without inducing recrystallization. This grain boundary ordering effectively relieves strain concentration and strengthens boundaries, enabling a simultaneous improvement in both strength and ductility.
Jiancheng Chen   +6 more
wiley   +1 more source

Triangulated surfaces and polyhedral structures

open access: yes, 2017
In this chapter we introduce the foundational material that will be used in our analysis of triangulated surfaces and of their quantum geometry. We start by recalling the relevant definitions from Piecewise–Linear (PL) geometry, (for which we refer ...
Annalisa Marzuoli   +3 more
core   +1 more source

Ultrafast Chemical Pre‐Sodiation of Pseudocapacitive CaV8O20 Anodes for High‐Performance Sodium‐Ion Capacitors

open access: yesAdvanced Science, EarlyView.
An ultrafast (2‐minute), gas‐free chemical pre‐sodiation strategy using Na‐benzophenone is developed to compensate for initial sodium loss in calcium vanadate (CaV8O20). Driven by the Ca2+ ‘spectator effect’, the framework enables highly reversible, quasi‐zero‐strain solid‐solution sodium storage, explicitly bypassing destructive conversion reactions ...
Neetu Bansal   +7 more
wiley   +1 more source

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