Results 131 to 140 of about 258,361 (359)

Fractal-in-a-Sphere: Confined Self-Assembly of Fractal Silica Nanoparticles

open access: yes, 2019
Fractal objects such as snowflakes and trees are ubiquitous in nature. However, fractal nanoparticles with uniform morphology and controllable structures are difficult to make.
Jing Geng (262219)   +19 more
core   +1 more source

Spatial metrics in fire ecology: seeking consistency amidst complexity

open access: yesBiological Reviews, EarlyView.
ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey   +5 more
wiley   +1 more source

Fractal dimension versus density of the built-up surfaces in the periphery of Brussels. [PDF]

open access: yes
This paper aims at showing the usefulness of the fractal dimension for characterizing the spatial structure of the built-up surfaces within the periurban fringe.
Marie-Laurence Dekeersmaecker   +2 more
core  

Advances in causal discovery methods for ecological time series

open access: yesBiological Reviews, EarlyView.
ABSTRACT Recent advances in data collection technologies (e.g. automated sensor networks, satellite remote sensing, and high‐throughput sequencing) have greatly expanded the availability of ecological time series, enabling new opportunities for causal analyses in dynamic ecosystems.
Kenta Suzuki   +6 more
wiley   +1 more source

Review: Fractal Geometry in Precipitation

open access: yesAtmosphere
Rainfall, or more generally the precipitation process (flux), is a clear example of chaotic variables resulting from a highly nonlinear dynamical system, the atmosphere, which is represented by a set of physical equations such as the Navier–Stokes ...
Robert Monjo, Oliver Meseguer-Ruiz
doaj   +1 more source

Structure‐Function Tailoring of Plasmonic Nanomaterials for Thin‐Film Photovoltaics

open access: yesCarbon Energy, EarlyView.
This review discusses the mechanisms and recent advancements of plasmonics in achieving effective light management to enhance the performance of thin‐film solar cells. It highlights applications in high‐performance perovskite solar cells and future‐oriented tandem solar cells.
Sen Jiang   +14 more
wiley   +1 more source

Entanglement fractalization

open access: yesPhysical Review Research
We numerically explore the interplay of fractal geometry and quantum entanglement by analyzing the von Neumann entropy (known as entanglement entropy) and the entanglement contour in the scaling limit. Adopting quadratic fermionic models on Sierpinski carpet, we uncover intriguing findings.
Yao Zhou, Peng Ye
openaire   +3 more sources

Modeling of Color and Degradation of C‐Phycocyanin Extracted From Arthrospira platensis and Chlorogloeopsis HTF

open access: yesChemie Ingenieur Technik, EarlyView.
A nonlinear kinetic model was developed and successfully implemented, which describes the degradation of the protein C‐phycocyanin depending on temperature and pH value. C‐phycocyanin had been extracted from two different cyanobacteria. In addition to protein degradation, the fading of the typical blue color of this protein was included in the model ...
Martina Kießling   +5 more
wiley   +1 more source

Εισαγωγή στα Fractal κατά Mandelbrot και Taylor

open access: yes, 2018
΄Εχουν διατυπωθεί πάρα πολλοί ορισμοί τις έννοιας Fractal. Στην παρούσα διπλωματική θα μελετήσουμε τα Fractal κατά Mandelbrot και Taylor. Ο λόγος που υπάρχουν πολλοί ορισμοί για αυτήν την έννοια είναι ότι μπορούμε να ορίσουμε την διάσταση ενός συνόλου με
Κουρελάς, Γεώργιος
core  

An Analytical Design Model of a Vacuum Pressure Swing Adsorption Process for Biogas Upgrading

open access: yesChemie Ingenieur Technik, EarlyView.
A steady‐state model was developed for a vacuum pressure swing adsorption (VPSA) process comprising adsorption, depressurization, and evacuation steps. The resulting analytical plant design model provides the optimal adsorber height required to achieve a target product purity with maximum bed utilization.
Thomas Welter   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy