Results 71 to 80 of about 94,177 (290)

Evidence of diffusive fractal aggregation of TiO2 nanoparticles by femtosecond laser ablation at ambient conditions

open access: yes, 2016
The specific mechanisms which leads to the formation of fractal nanostructures by pulsed laser deposition remain elusive despite intense research efforts, motivated mainly by the technological interest in obtaining tailored nanostructures with simple and
Archetti, D.   +5 more
core   +1 more source

Bioinspired Hierarchical Architecture with Water Transport Channels for Strong Adhesion at the Sweating Interface

open access: yesAdvanced Science, EarlyView.
To address adhesion failure in sweaty epidermal electronics, this study proposes a cross‐species, multi‐scale biomimetic interface. By modeling staged wet adhesion, it integrates self‐regulating liquid bridges with directional drainage. This design ensures stable, high‐performance flexible sensing in complex physiological environments, offering a ...
Jieliang Zhao   +12 more
wiley   +1 more source

Fractal-Inspired Region-Weighted Optimization and Enhanced MobileNet for Medical Image Classification

open access: yesFractal and Fractional
In the field of deep learning, the design of optimization algorithms and neural network structures is crucial for improving model performance. Recent advances in medical image analysis have revealed that many pathological features exhibit fractal-like ...
Yichuan Shao   +4 more
doaj   +1 more source

ELECTRON MICROSCOPY ANALYSIS OF SEMI-COKE FROM THE MICROWAVE PYROLYSIS OF OIL SHALE WITH ITS FRACTAL DESCRIPTION; pp. 209–228 [PDF]

open access: yesOil Shale, 2010
This paper discusses the potential use of microwave technology as an energy-efficient alternative to current heating technologies employed for treatment of Jilin Huadian oil shale and analyzes the surface pore structure of its semi-coke particle by a ...
WANG QING   +4 more
doaj   +1 more source

scResponse: A Rank‐Based Method for Identifying Cell States That Contribute to Immunotherapy Response by Single‐Cell Data

open access: yesAdvanced Science, EarlyView.
Although the tumor microenvironment is known to shape immunotherapy response, its key determinants remain elusive, underscoring the critical need for single‐cell resolution analytical frameworks. We present scResponse, an efficient algorithm to quantify single‐cell responses to immunotherapy. By capturing diverse cellular subtypes and states associated
Qi Dong   +21 more
wiley   +1 more source

An Improve Differential Box Counting Method to Estimate Fractal Dimension [PDF]

open access: yesEngineering and Technology Journal, 2015
The mathematical concept that used to measure the complexity of the fractal sets is known as fractal dimension. It is considered as a global feature for fractal images.
N.M.G. Alsaidi, W.J. Abdulaal
doaj   +1 more source

Cosmic-ray composition with TACTIC telescope using Fractal and Wavelet Analysis

open access: yes, 2012
A preliminary flux estimate of various cosmic-ray constituents based on the atmospheric Cerenkov light flux of extensive air showers using fractal and wavelet analysis approach is proposed.
Bhat, C. K.
core   +1 more source

Functional Disorder at the Neural Interface: How Disordered Nanostructures Promote Proper Growth and Differentiation in In Vitro Neural Cultures

open access: yesAdvanced Science, EarlyView.
This work provides a practical guide for neuroengineers to design advanced neural interfaces, embracing and tailoring the concept of functional disorder. By bridging 2D and 3D in vitro models, this work highlights how non‐periodic, spatially heterogeneous, multiscale nanotopography can enable more physiologically relevant platforms for studying neural ...
F. Maita   +4 more
wiley   +1 more source

Research on image compression encoding based on fixed dictionary

open access: yesSystems Science & Control Engineering
With the widespread application of IoT technology, a large amount of image data must be transmitted through networks. Owing to the current limited bandwidth, it is necessary to compress images to satisfy the requirements for real-time image transmission.
Lifeng Li   +3 more
doaj   +1 more source

Increasing the Speed of Fractal Image Compression Using Two-Dimensional Approximating Transformations

open access: yesЖурнал інженерних наук, 2019
Fractal image compression algorithm is known for allowing very high compression rates (the best examples – up to 1 000 times with acceptable visual quality) for real photos of natural objects, which is not possible for other lossy compression methods ...
Maydaniuk V. P.   +2 more
doaj   +1 more source

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