Results 61 to 70 of about 83,874 (238)

Directed Random Walk on the Lattices of Genus Two

open access: yes, 2011
The object of the present investigation is an ensemble of self-avoiding and directed graphs belonging to eight-branching Cayley tree (Bethe lattice) generated by the Fucsian group of a Riemann surface of genus two and embedded in the Pincar\'e unit disk.
A. V. NAZARENKO   +4 more
core   +1 more source

Colouring stability two unit disk graphs

open access: yesContributions to Discrete Mathematics, 2011
We prove that every stability two unit disk graph has chromatic number at most 3/2 times its clique number.
openaire   +3 more sources

Automatic Exposure Volumetric Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
Tomographic volumetric additive manufacturing (VAM) is resin‐based 3D printing technology, where objects are printed in seconds using volumetric light patterning. Although fast, tomographic VAM struggles to produce repeatable and accurate prints. This work demonstrates an automatic exposure method for tomographic VAM, resulting in commercial‐grade ...
Antony Orth   +10 more
wiley   +1 more source

Growth Factor‐Loaded Mesoporous Silica Particles, Incorporated in Electrospun PCL Fibres, Provide Topographical and Chemical Cues for Tendon Tissue Engineering

open access: yesAdvanced Materials Technologies, EarlyView.
Electrospinning enables the hierarchical assembly of nanofiber‐based scaffolds for tissue engineering. However, encapsulated proteins often undergo structural changes. This study used mesoporous silica nanoparticles (MSNs) as protective carriers, mitigating protein denaturation and supporting controlled release.
Vera Citro   +5 more
wiley   +1 more source

Geometric Graphs with Unbounded Flip-Width

open access: yes, 2023
We consider the flip-width of geometric graphs, a notion of graph width recently introduced by Toru\'nczyk. We prove that many different types of geometric graphs have unbounded flip-width. These include interval graphs, permutation graphs, circle graphs,
Eppstein, David, McCarty, Rose
core  

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

open access: yesAdvanced Photonics Research, EarlyView.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu   +5 more
wiley   +1 more source

Biomedical Application of Cold Plasma: Navigating Through Plasma Types and Devices by Antimicrobial Effectiveness and Tissue Tolerance

open access: yesAdvanced Therapeutics, EarlyView.
Cold plasma devices (J‐Plasma, Piezo Brush PZ3, Plasma Care) generate unique reactive species that penetrate tissues differently, enabling biofilm eradication while preserving tissue health. This study uncovers plasma‐device interactions with biofilms and surfaces, highlighting tailored applications for precision medicine and infection control ...
Thomas P. Thompson   +14 more
wiley   +1 more source

NP-hardness of the cluster minimization problem revisited

open access: yes, 2005
The computational complexity of the "cluster minimization problem" is revisited [L. T. Wille and J. Vennik, J. Phys. A 18, L419 (1985)]. It is argued that the original NP-hardness proof does not apply to pairwise potentials of physical interest, such as ...
Artur B Adib   +7 more
core   +1 more source

Analytical Description of Nanowires: Morphing Wurtzite Structure Cross Sections to Match Arbitrary Convex Shapes

open access: yesAdvanced Theory and Simulations, EarlyView.
Analytic morphing of wurtzite nanowire cross sections to arbitrary shapes yields numbers of nanowire atoms, of bonds between these and of nanowire interface bonds, plus the nanowire cross section area. The ratios of above variables help to interpret any spectroscopic nanowire data which depend on diameter and cross section shape, and can be applied to ...
Dirk König, Sean C. Smith
wiley   +1 more source

Subexponential Algorithms for Clique Cover on Unit Disk and Unit Ball Graphs [PDF]

open access: yes
In Clique Cover, given a graph G and an integer k, the task is to partition the vertices of G into k cliques. Clique Cover on unit ball graphs has a natural interpretation as a clustering problem, where the objective function is the maximum diameter of a
Koana, Tomohiro   +2 more
core   +1 more source

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