Results 61 to 70 of about 115,766 (266)

Sub‐Diffraction Nanolithography of Halide Perovskite via Reversible All‐Optical Crystallization–Decomposition

open access: yesAdvanced Materials, EarlyView.
A reversible, all‐optical modulation strategy enables resist‐free, sub‐diffraction nanolithography of halide perovskite films. Leveraging 800 nm fs laser‐induced crystallization and 365 nm laser driven decomposition, reconfigurable patterning achieves feature sizes down to 93.5 nm. This chemistry‐free approach offers dynamic control over optoelectronic
Zhengfen Wan   +4 more
wiley   +1 more source

Simulation and Comparison of Twenty Five Level Diode Clamped & Cascaded H-Bridge Multilevel Inverter

open access: yesIranian Journal of Electrical and Electronic Engineering, 2018
This paper presents the comparative study of three phase twenty five level diode clamped and cascaded H-bridge multilevel inverters. The comparison is made in respect of requirement of devices, quality of output voltage and reduction of total harmonic ...
S. R. Sadu, P. V. Prasad, G. N. Srinivas
doaj  

Application of soft computing algorithms for hybrid modular multilevel inverters

open access: yesMeasurement: Sensors
This study utilized Harris Hawk optimization to analyze the harmonic distortions of a symmetric capacitor based multilevel converter. The proposed multilevel converter uses identical and symmetric DC sources in its input.
Devineni Gireesh Kumar   +9 more
doaj   +1 more source

A Multilevel Method for Self-Concordant Minimization

open access: yesJournal of Optimization Theory and Applications
AbstractThe analysis of second-order optimization methods based either on sub-sampling, randomization or sketching has two serious shortcomings compared to the conventional Newton method. The first shortcoming is that the analysis of the iterates has only been shown to be scale-invariant only under specific assumptions on the problem structure.
Nick Tsipinakis, Panos Parpas
openaire   +4 more sources

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

open access: yesAdvanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase   +6 more
wiley   +1 more source

Multilevel model analysis using R [PDF]

open access: yesRevista Română de Statistică, 2014
The complex datasets cannot be analyzed using only simple regressions. Multilevel models (also known as hierarchical linear models, nested models, mixed models, random coefficient, random-effects models, random parameter models or split-plot designs) are
Nicolae-Marius JULA
doaj  

Application of Multilevel Models to Morphometric Data. Part 2. Correlations

open access: yesAnalytical Cellular Pathology, 2003
Multilevel organization of morphometric data (cells are “nested” within patients) requires special methods for studying correlations between karyometric features.
O. Tsybrovskyy, A. Berghold
doaj   +1 more source

Nonwoven‐Based Textile Architectures for Energy Storage Applications: Materials, Preparation, Characterization, and Prospects

open access: yesAdvanced Materials Interfaces, EarlyView.
Nonwoven textile architectures are emerging as versatile platforms for next‐generation energy storage, demonstrating how tailored materials and fabrication strategies enhance ion transport, conductivity, flexibility, and scalability for high‐performance sustainable devices.
Tarikul Islam   +6 more
wiley   +1 more source

Performance of Multilevel Methods for Excited States. [PDF]

open access: yesJ Phys Chem A, 2022
Hégely B   +5 more
europepmc   +1 more source

Self‐Assembled Calcite Architectures for Programmable Information Storage

open access: yesAdvanced Materials Technologies, EarlyView.
Programmable biomineralization enables the formation of 3D calcite architectures that encode information through spatially defined refractive‐index modulations. Data are written via laser‐directed mineralization, stored in stable voxelized mineral structures, and retrieved non‐destructively through optical diffraction, offering a pathway toward ultra ...
Congrui Jin   +2 more
wiley   +1 more source

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