Results 161 to 170 of about 171,939 (293)

Path Degeneracy and Applications

Journal of Graph Theory, EarlyView.
ABSTRACT In this work, we relate girth and path‐degeneracy in classes with sub‐exponential expansion, with explicit bounds for classes with polynomial expansion and proper minor‐closed classes that are tight up to a constant factor (and tight up to second order terms if a classical conjecture on existence of g $g$‐cages is verified). As an application,
Yuquan Lin, Patrice Ossona de Mendez
wiley   +1 more source

Assessing the impact of bacterial heterogeneity on bacteriophage population dynamics. [PDF]

J Pharmacokinet Pharmacodyn
Beldjenna M, Guedj J, van Hasselt JGC, Guo T.   +3 more
europepmc   +1 more source

Flow‐Critical Graphs

Journal of Graph Theory, EarlyView.
ABSTRACT Lovász et al. proved that every six‐edge‐connected graph has a nowhere‐zero three‐flow. In fact, they proved a more technical statement, which says that there exists a nowhere‐zero three‐flow that extends the flow prescribed on the incident edges of a single vertex z $z$ with bounded degree. We extend this theorem of Lovász et al.
Arnbjörg Soffía Árnadóttir, Zdeněk Dvořák, Bernard Lidický, Benjamin Moore, Evelyne Smith‐Roberge, Robert Šámal   +5 more
wiley   +1 more source

Evaluation Of Triple Euler Sums

, 1995
. Let a; b; c be positive integers and define the so-called triple, double and single Euler sums by i(a; b; c) := 1 X x=1 x\Gamma1 X y=1 y\Gamma1 X z=1 1 x a y b z c ; i(a; b) := 1 X x=1 x\Gamma1 X y=1 1 x a y b and i(a) := 1 X x=1 ...
Roland Girgensohn, Jonathan M. Borwein, Jonathan Borwein Cecm   +2 more
core   +1 more source

Localized surface-based morphometric differences in painful temporomandibular disorder. [PDF]

Neuroimage Rep
Montesino-Goicolea S, Valdes-Hernandez PA, Peraza JA, Ribeiro Dasilva M, Coombes SA, Cruz-Almeida Y.   +5 more
europepmc   +1 more source

Clinical Value and Research Prospects of 1024 Matrix Optimization in 64‐Slice Cerebral CTA for Perforating Artery Visualisation

Journal of Medical Radiation Sciences, EarlyView.
This letter comments on Nagumo et al.'s study evaluating 1024‐matrix reconstruction for intracranial perforating artery visualisation in 64‐slice cerebral CTA, affirming its cost‐effective value for standard CT scanners (https://doi.org/10.1002/jmrs.70055).
Yang Liu, Wei Wu
wiley   +1 more source

Unstable Vortices, Sharp Non-Uniqueness with Forcing, and Global Smooth Solutions for the SQG Equation. [PDF]

Arch Ration Mech Anal
Castro Á, Faraco D, Mengual F, Solera M.   +3 more
europepmc   +1 more source

Rainfall‐Induced Physical Crusting Is Associated With Near‐Surface Structural Degradation and Strain Localization During Drying in Loess Soil

Land Degradation &Development, EarlyView.
ABSTRACT Rainfall‐induced physical crusting is associated with degradation of near‐surface soil structure, but its pore‐scale structural and mechanical evolution during drying remains poorly resolved. We combined time‐resolved X‐ray computed tomography (XCT), digital volume correlation (DVC), and surface‐aligned stratification to track pore ...
Ruikun Feng, Yiru Chen, Guanheng Liu, Qinqian Meng, Jian Wang   +4 more
wiley   +1 more source

Free transverse vibration analysis of Non-uniform Nano-Timoshenko beams rotating around two perpendicular axes using differential quadrature method. [PDF]

Sci Rep
Mohsen AM, Fadwi RM, Haji BS, Sawaran Singh NS, Hussein ZA, Hamd SS, Fotohi A, Keshavarzi A, Salahshour S.   +8 more
europepmc   +1 more source

Ultra‐Fast and Energy‐Efficient PZT Optical Tunable Delay Lines for Programmable Photonic Systems

Laser &Photonics Reviews, EarlyView.
Thin‐film PZT enables optical tunable delay lines that simultaneously offer sub‐nanosecond switching, low propagation loss, and zero‐static‐power programmability. A five‐bit on‐chip delay line provides a maximum delay of 387.5 ps with a resolution of 12.5 ps, while reconfigurable MZI splitting ratios further enable non‐volatile optical arbitrary ...
Cunyu Shi, Chenlei Li, Wei Chen, Shengjie Tang, Tao Shu, Haojie Zhu, Haorui Liu, Yueyang Zhang, Long Zhang, William Shieh, Feng Qiu, Daoxin Dai   +11 more
wiley   +1 more source