Results 41 to 50 of about 73,165 (262)

EEG Study Based on Bipolar Concentric Ring Laplacian Electrodes

Shengwu huaxue yu shengwu wuli jinzhan
ObjectiveElectroencephalography (EEG) serves as a non-invasive electrophysiological monitoring technique employed to record brain electrical activity. Nonetheless, traditional EEG electrodes are susceptible to reference activation influences and exhibit ...
ZHENG Chun-Hou, HE Feng, SHI Tian-Ning, XUE Jia-Xing, YING Bing-Jie, XU Min-Peng   +5 more
doaj   +1 more source

Estimates of the Laplacian Spectrum and Bounds of Topological Invariants for Riemannian Manifolds with Boundary

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
We set out to obtain estimates of the Laplacian Spectrum of Riemannian manifolds with non-empty boundary. This was achieved using standard doubled manifold techniques. In simple terms, we pasted two copies of the same manifold along their common boundary
Sabatini Luca
doaj   +1 more source

Resonant nonlinear periodic problems with the scalar p-Laplacian and a nonsmooth potential [PDF]

, 2006
We study periodic problems driven by the scalar p-Laplacian with a nonsmooth potential. Using the nonsmooth critical point theory for locally Lipsctiz functions,we prove two existence theorems under conditions of resonance at infinity with respect to ...
Staicu, Vasile, Aizicovici, Sergiu, Aizicovici, S, Papageorgiou, NS, Papageorgiou, Nikolaos S., Papageorgiou, Nikolaos, Staicu, V   +6 more
core  

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Stability of Nonlinear Dirichlet BVPs Governed by Fractional Laplacian [PDF]

, 2014
We consider a class of partial differential equations with the fractional Laplacian and the homogeneous Dirichlet boundary data. Some sufficient condition under which the solutions of the equations considered depend continuously on parameters is stated ...
Bors, Dorota
core   +2 more sources

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

Advanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu, Hao Jiang, Xingsi Liu, Fakun Wang, Yang Peng, Qi Jie Wang, Weibo Gao, Xingzhan Wei, Cheng‐Wei Qiu   +8 more
wiley   +1 more source

Re-patterning of cylindrical packing of diblock copolymers under confinement and curvature effects by using approximations of PDE’s involved in the CDS model on polar mesh system

Journal of Physics Communications
Soft materials, including diblock copolymers, are advancing nanotechnology due to their unique properties, applications materials include energy harvesting, water sanitation, environmental treatment, nanosensors, drug delivery and nanolithography.
Muhammad Javed Iqbal, Inayatullah Soomro, Mumtaz Hussain Mahar   +2 more
doaj   +1 more source

Discrete 2D Material Programming for 3D Shaping and Morphogenesis‐Inspired 4D Bioprinting

Advanced Science, EarlyView.
Cell‐compatible discrete 2D material programming enables 2‐to‐3D shape transformation and morphogenesis‐inspired 4D bioprinting. By patterning cell‐supportive microdomains within a responsive hydrogel, the approach programs in‐plane growth to encode target metrics.
Fereshteh Family, Aneela Davuluri, Athulya Martin, Kyungsuk Yum   +3 more
wiley   +1 more source

Polarization Holographic 4D Phenotyping Reveals Nanoplastic Induced Dysfunction in Zooplankton

Advanced Science, EarlyView.
Contaminant‐induced dysfunction in complex aquatic organisms remains difficult to resolve across scales. Polarization Holographic Imaging Microscopy (PHIM) integrates polarization‐sensitive holography with computational volumetric reconstruction for label‐free phenotyping of zooplankton in natural seawater, revealing that nanoplastic stress drives ...
Yuxing Li, Yanmin Zhu, Jingyan Chen, Rongzhou Chen, Yuen‐Wa Ho, Chutian Wang, James Kar‐Hei Fang, Kevin K. Tsia, Edmund Y. Lam   +8 more
wiley   +1 more source

Introducing INPOX: a method for informed point extraction from geological 2D surfaces exemplified on the Danish national hydrostratigraphic model

GEUS Bulletin
This study presents a probabilistic method for extracting informed points from geological surfaces, named INPOX. The method generates a probability map from the existing surface by calculating the Laplacian at each location and combining it with a user ...
Rasmus Bødker Madsen, Frederik Alexander Falk, Ingelise Møller, Anne-Sophie Høyer   +3 more
doaj   +1 more source