Results 11 to 20 of about 115,031 (307)

SPACETIME FOAM [PDF]

open access: yesInternational Journal of Modern Physics D, 2002
Spacetime is composed of a fluctuating arrangement of bubbles or loops called spacetime foam, or quantum foam. We use the holographic principle to deduce its structure, and show that the result is consistent with gedanken experiments involving spacetime measurements.
openaire   +2 more sources

Inca Foams [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2017
We study a certain class of embedded [Formula: see text]-foams that arise from gluing disks into ribbon torus knots along nonintersecting torus meridians. We exhibit several equivalent diagrammatic formalisms for these objects and identify several of their invariants, including a unique prime factorization.
Carmi, Avishy Y., Moskovich, Daniel
openaire   +2 more sources

An Evaluation of Non-Stochastic Lattice Structures Fabricated Via Electron Beam Melting [PDF]

open access: yes, 2006
Metal foam structures have many applications and can be used as structural supports, heat exchangers, shock absorbers, and implant materials. Stochastic metal foams having different cell sizes and densities have been commercially available for a number
Cansizoglu, O.   +4 more
core   +1 more source

Alginate in Wound Dressings

open access: yesPharmaceutics, 2018
Alginate is a biopolymer used in a variety of biomedical applications due to its favourable properties, such as biocompatibility and non-toxicity. It has been particularly attractive in wound healing applications to date.
Blessing Atim Aderibigbe, Buhle Buyana
doaj   +1 more source

Foaming Volume and Foam Stability. [PDF]

open access: yesThe Journal of Physical Chemistry, 1946
A method of measuring foaming volume is described and investigated to establish the critical factors in its operation. Data on foaming volumes and foam stabilities are given for a series of hydrocarbons and for a range of concentrations of aqueous ethylene-glycol solutions.
openaire   +2 more sources

Klein foams

open access: yesIndiana University Mathematics Journal, 2011
Klein foams are analogues of Riemann and Klein surfaces with one-dimensional singularities. We prove that the field of dianalytic functions on a Klein foam $ $ coincides with the field of dianalytic functions on a Klein surface $K_ $. We construct the moduli space of Klein foams and we prove that the set of classes of topologically equivalent Klein ...
Costa, A., Gusein-Zade, S., Natanzon, S.
openaire   +3 more sources

SIMULATIONS OF THE PROPERTIES OF ELONGATED HEXAGONAL DODECAHEDRON SYSTEMS

open access: yesTASK Quarterly, 2014
This study considers a 3D basic unit-cell proposed for auxetic and non-auxetic foams namely the elongated hexagonal dodecahedron deforming through changes in angle between its ligaments (idealised hinging model). This structure was studied in detail for
JOSEPH N. GRIMA   +3 more
doaj   +1 more source

Recent Advances and Applications of Plant-Based Bioactive Saponins in Colloidal Multiphase Food Systems

open access: yesMolecules, 2021
The naturally occurring saponins exhibit remarkable interfacial activity and also possess many biological activities linking to human health benefits, which make them particularly attractive as bifunctional building blocks for formulation of colloidal ...
Mengyue Xu, Zhili Wan, Xiaoquan Yang
doaj   +1 more source

Polyetherimide foams filled with low content of graphene nanoplatelets prepared by scCO2 dissolution [PDF]

open access: yes, 2019
Polyetherimide (PEI) foams with graphene nanoplatelets (GnP) were prepared by supercritical carbon dioxide (scCO2) dissolution. Foam precursors were prepared by melt-mixing PEI with variable amounts of ultrasonicated GnP (0.1–2.0 wt %) and foamed by one ...
Abbasi, Hooman   +2 more
core   +2 more sources

QUANTUM FOAM [PDF]

open access: yesThe Tenth Marcel Grossmann Meeting, 2006
20 pages, 3 figures, talk given at the 10th Marcel Grossman Meeting (Rio de Janeiro, July 20 - 26, 2003)
openaire   +2 more sources

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