Results 81 to 90 of about 202,770 (288)
Generating irregular fractals based on iterated function systems
AIMS MathematicsThe iterated function system (IFS) is important in different fields like image compression. An important feature of such systems is that they can be used to generate fractals.
Baoxing Zhang +2 more
doaj +1 more source
Fractales del conocimiento [PDF]
Palimpsesto, 2019 Xavier Vilalta es el fundador y director de Vilalta Architects.Con su equipo, ha desarrollado trabajos a nivel nacional, seguido de proyectos internacionales en países emergentes deÁfrica y Medio Oriente. Participa regularmente como conferenciante en congresos y eventos nacionales e internacionales. Entre algunos de ellos destacan el TED Global, el día
openaire +2 more sources
Kinetically Arrested SERS‐Active Aggregates for Biosensing
Chemistry – A European Journal, EarlyView.Three chemically benign components (AuNP, CB[7] and PEG‐SH) are employed to produce highly‐stable SERS‐active AuNP aggregates able to detect (bio)analytes at low concentrations in high salinity and protein‐containing media. Tunable disassembly is embedded in the AuNP aggregate design, which can be triggered by endogenous thiol‐containing compounds ...
Natalie S. Potter +4 more
wiley +1 more source
Toward a new “Fractals-General Science”
Alexandria Engineering Journal, 2014 A recent study has shown that everywhere real systems follow common “fractals-general stacking behavior” during their change pathways (or evolutionary life cycles).
Hassen Taher Dorrah
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Small-Angle Scattering from Polymeric Mass Fractals of Arbitrary Mass-Fractal Dimension
, 1996 The Debye equation for polymer coils describes scattering from a polymer chain that displays Gaussian statistics. Such a chain is a mass fractal of dimension 2 as evidenced by a power-law decay of −2 in the scattering at intermediate q. At low q, near q ≃
G. Beaucage
semanticscholar +1 more source
On the Importance of Balancing the pKa of the Additive in β‐Ketoenamine COF Synthesis
Chemistry – A European Journal, EarlyView.β‐ketoenamine COFs are usually synthesized in the presence of acetic acid. Here, we report the surprising role of organobases TEA and DIPEA in achieving TpPa with high Brunauer‐Emmett‐Teller surface areas (>1400 m2/g) and high crystallinity. The similar pKa values of TEA and DIPEA (10.8 and 11.0, resp.) and Tp (10.8) mark the importance of balancing ...
Thijmen A. van Voorthuizen +3 more
wiley +1 more source
Physics, Perception, and Physiological of Jackson Pollock's Fractals
i-Perception, 2011 Fractals have experienced considerable success in quantifying the visual complexity exhibited by many natural patterns and have captured the imagination of scientists and artists alike.
Richard P. Taylor
doaj +1 more source
Chemistry–Methods, EarlyView.We present a custom‐built electrochemical flow cell for in‐house real‐time small‐angle X‐ray scattering (SAXS) experiments to monitor the electrocrystallization of nanoscale Co(OH)2 platelets tracking their growth from 7.8 nm to 15.7 nm thickness. Citrate ligands initially stabilize spherical structures, transitioning to platelet morphologies as the ...
Jonas Schwan +2 more
wiley +1 more source
Fractal dimension for fractal structures: A Hausdorff approach
Topology and its Applications, 2012 This paper provides a new model to compute the fractal dimension of a subset on a generalized-fractal space. Recall that fractal structures are a perfect place where a new definition of fractal dimension can be given, so we perform a suitable discretization of the Hausdorff theory of fractal dimension.
Manuel Fernández-Martínez +1 more
openaire +3 more sources