Results 101 to 110 of about 208,576 (353)

Influence of Raw‐Material Processing on Gold and Silver Nanoparticles Stability Using Ultrasound‐Extracted Pink‐Pepper Compounds

open access: yesChemistry &Biodiversity, EarlyView.
Schinus terebinthifolius extract and metal nanoparticle synthesis. ABSTRACT The ultrasound‐assisted green synthesis of gold (AuNPs) and silver nanoparticles (AgNPs) from Schinus terebinthifolius extracts delivered stable colloids whose physicochemical properties depend on raw‐material preprocessing.
Lucas Cantalovo Pereira   +3 more
wiley   +1 more source

The fractal nature of a diffusion front and the relation to percolation [PDF]

open access: green, 1985
B. Sapoval, Michel Rosso, J. F. Gouyet
openalex   +1 more source

Self‐Assembly of Heterochiral and Homochiral Peptides Conjugated to PNA Dimers and Their Integration in Peptide‐Based Hydrogels

open access: yesChemistry – A European Journal, EarlyView.
Homochiral PNA‐peptide conjugates mixed to homochiral peptides yield hydrogels supporting cell growth. Abstract Hybrid biomolecules composed of short peptides and nucleic acid analogues can self‐assemble and are good candidates to produce new materials thanks to their biocompatibility and versatility.
Ilaria Miglioli   +7 more
wiley   +1 more source

Mathematical Modeling of Fractals via Proximal F-Iterated Function Systems

open access: yesAxioms
We propose a novel approach to fractals by leveraging the approximation of fixed points, emphasizing the deep connections between fractal theory and fixed-point theory.
Muhammad Zahid   +4 more
doaj   +1 more source

Resource‐Efficient Electrodes with Metallized Woven‐Glass‐Grid Current Collectors for Lithium‐Ion Batteries

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The use of metallized glass‐based woven‐grids instead of metal foils as current collectors for LIBs leads to a significant reduction in metal usage by over 90 % and weight savings of more than 80 %, resulting in an 11 % increase in specific energy at the cell level. Abstract A novel class of resource‐efficient, woven‐glass‐grid current collectors (CCs)
Yen‐Ming Li   +10 more
wiley   +1 more source

Controls on carbonate island formation and evolution: South Joulter Cay, Great Bahama Bank

open access: yesThe Depositional Record, EarlyView.
The evolution of South Joulter Cay occurs in three stages: linear ridges shaped by waves and longshore currents, arcuate ridges influenced by tidal currents and channels, and cuspate ridges formed by variable wind and wave directions. These processes are driven by climatic and oceanographic factors.
Juan Carlos Laya   +3 more
wiley   +1 more source

The study of fractals among ecologists=O estudo dos fractais entre os ecólogos [PDF]

open access: yesActa Scientiarum: Biological Sciences, 2012
Fractals seemed to have permeated most scientific fields, including ecology. In fact, biodiversity and ecological processes are affected by spatial complexity, and fractals can help understand patterns at multiple scales.
Roger Paulo Mormul   +1 more
doaj  

In situ loading of a pore network model for quantitative characterization and visualization of gas seepage in coal rocks

open access: yesDeep Underground Science and Engineering, EarlyView.
Fine modeling of a three‐dimensional fracture structure under dynamic loading of coal is carried out. The streamline distribution law of pressure and velocity field in the loading process of the coal specimen is analyzed, the absolute permeability of the coal specimen is calculated, and the feasibility of the pore network model algorithm and finite ...
Huazhe Jiao   +6 more
wiley   +1 more source

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