Results 61 to 70 of about 16,389 (269)

Distribution of unit mass on one fractal self-similar web-type curve

Математичні Студії
In the article, we study structural, spectral, topological, metric and fractal properties of distribution of complex-valued random variable $\tau=\sum\nolimits_{n=1}^{\infty}\frac{2\varepsilon_{\tau}}{3^n}\equiv\Delta^g_{\tau_1...\tau_n...}$, where ...
M. V. Pratsiovytyi, I. M. Lysenko, S. P. Ratushniak, O. A. Tsokolenko   +3 more
doaj   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Fractal perspective on dynamics of dark matter and dark energy interactions

Nonlinear Analysis
In this paper, the dynamics of intricate chaotic attractors of the nonlinear system modeling the dark matter and dark energy interactions is studied indulging fractal–fractional operator in the Caputo sense.
T.M.C. Priyanka, A. Gowrisankar, Santo Banerjee   +2 more
doaj   +1 more source

Personalized Network‐Guided Neuromodulation Enhances Human Working Memory

Advanced Science, EarlyView.
A personalized neuromodulation framework combining individualized functional brain network targeting with real‐time neural decoding is introduced. Using concurrent TMS–fMRI, participant‐specific stimulation targets and optimal frequencies are identified. Only optimal‐frequency stimulation improves working memory across sessions.
Ahsan Khan, Hongming Li, Camille Blaine, Julie Grier, Ethan Hammett, Almaris Figueroa‐Gonzalez, Sarai Garcia, Romain Duprat, Justin Reber, Joseph Deluisi, Christos Davatzikos, Theodore D. Satterthwaite, Yong Fan, Desmond J. Oathes   +13 more
wiley   +1 more source

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

Advanced 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, E. Palmieri, I. Lucarini, L. Montaina, L. Maiolo   +4 more
wiley   +1 more source

Characteristics and controlling factors of coal-measure unconventional reservoirs – A case study of the Carboniferous-Permian in the Ordos Basin

Unconventional Resources
Coal-measure unconventional natural gas exhibits diverse types and abundant resources, making it a strategic exploration field to marine shale gas. Currently, researches on coal-measure unconventional gas are still in the early stages, and further study ...
Zengqin Liu, Shihu Zhao, Zongquan Hu, Baojian Shen, Dongjun Feng, Jiaqi Zhang, Jincheng Ye, Chao Ma, Zhaoxiong Dong   +8 more
doaj   +1 more source

Fractal analysis of leaves: are all leaves self-similar along the cane?

Ekológia (Bratislava), 2013
The fractal dimension can be used to quantify the shape of a natural curve. Curves with similar degrees of irregularity will tend to have the same fractal dimension.
Gazda Anna
doaj   +1 more source

On the Minkowski measurability of fractals [PDF]

Proceedings of the American Mathematical Society, 1995
Let \(F\subset \mathbb{R}^n\), the Lebesgue measure \(V(F_\varepsilon)\) of the \(\varepsilon\)-neighbourhood \(F_\varepsilon:= \{x\in \mathbb{R}^n: \text{dist} (x,F) \leq\varepsilon\}\) may be used to define the Minkowski dimension of \(F\). In particular, if \(V(F_\varepsilon) \approx \varepsilon^{n-d}\) as \(\varepsilon\to 0\) (i.e., for positive ...
openaire   +2 more sources

Femtosecond‐Laser‐Induced Physical Unclonable Random Maze Structure for Storage‐Free Encryption

Advanced Science, EarlyView.
Femtosecond‐laser‐induced gold random maze structures serve as multimodal physical unclonable functions for storage‐free encryption. Their stochastic optical, electrical, and Raman responses are generated by plasmon‐assisted Marangoni formation and converted into AES‐compatible keys without permanent secret‐key storage, offering a portable route toward
Shiru Jiang, Hongliang Li, Shengjie Ma, Sang‐Shin Lee, Lei Wang, Mengyun Hu, Heping Zeng   +6 more
wiley   +1 more source

Strain‐Adaptive Dielectric Metamaterials via Bioinspired “Ligament‐Bone” Architecture for Ultrahigh‐Energy Capacitive Storage

Advanced Science, EarlyView.
A bioinspired strain‐adaptive ligament‐bone architecture achieves record‐high energy density of 26.1 J cm−3 and 90% efficiency at 600 MV m−1, coupled with a Young's modulus of 2.13 GPa. ABSTRACT Polymer dielectrics for capacitive energy storage face fundamental trade‐offs between breakdown strength, energy density, efficiency, and mechanical robustness.
Jian Wang, Xinyu Wang, Jiabao Wang, Biyun Peng, Yifei Zhang, Ning Zhu, Xin Hu   +6 more
wiley   +1 more source