Results 51 to 60 of about 24,507 (264)
Freeze-out forbidden dark matter in the hidden sector in the mass range from sub-GeV to TeV
Journal of High Energy Physics, 2022 Kinematically forbidden channels can set the freeze-out dark matter (DM) relic abundance. These channels are described by DM annihilations into heavier states, which vanish at zero temperature limit, but occur at finite temperatures in the early Universe.
Kwei-Chou Yang
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Arthritis Care &Research, EarlyView.Objective This study aimed to describe real‐world trends in preconception and prenatal use of antirheumatic drugs among pregnant individuals with rheumatic diseases in Ontario, Canada. Methods We conducted a time‐series analysis using repeated cross‐sectional data to examine annual patterns of disease‐modifying antirheumatic drug (DMARD) use among ...
Shenthuraan Tharmarajah +6 more
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Global Behavior of a Rational Difference Equation
四川大学学报. 自然科学版, 2018 In this paper, we determine the forbidden set, introduce an explicit formula for the solutions, and discuss the global behavior of a rational difference equation x_(n+1)=(x_n x_(n-k))/(αx_n+βx_(n-(k+1)) ), where inter k∈N, inter n∈N∪{0},α,β are real ...
CHEN Wei-Wei
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IEEE Access, 2017 Deciding how to prevent discrete event systems (DESs) from reaching forbidden states is an important problem in the field of DES supervisory control. For DESs with uncontrollable events, linear constraint transformation becomes a popular technique for ...
Dan You +3 more
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Extending Drawings of Graphs to Arrangements of Pseudolines
Journal of Computational Geometry, 2021 In the recent study of crossing numbers, drawings of graphs that can be extended to an arrangement of pseudolines (pseudolinear drawings) have played an important role as they are a natural combinatorial extension of rectilinear (or straight-line ...
Alan Arroyo +2 more
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Minimal forbidden sets for degree sequence characterizations
Discrete Mathematics, 2015 Given a set $\mathcal{F}$ of graphs, a graph $G$ is $\mathcal{F}$-free if $G$ does not contain any member of $\mathcal{F}$ as an induced subgraph. Barrus, Kumbhat, and Hartke [M. D. Barrus, M. Kumbhat, and S. G. Hartke, Graph classes characterized both by forbidden subgraphs and degree sequences, J. Graph Theory (2008), no.
Michael D. Barrus, Stephen G. Hartke
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Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
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Formation of unmanned aircraft trajectory when flying around prohibited areas
Системный анализ и прикладная информатика, 2022 Considered the problem of flying over restricted areas by an unmanned aerial vehicle (UAV), which have various shapes and restrictions, set on the basis of the international airspace classification system for aviation in accordance with the Chicago ...
A. A. Lobaty +2 more
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Advanced Functional Materials, EarlyView.Here, we provide the reader with the current state of the art in the fabrication of high‐T2‐coherence diamond, optimized through the use of double electron–electron resonance (DEER) spectroscopy. We reveal the main as well as yet unidentified spin defects, the reduction of which is essential for reducing the spin bath and fabricating materials for ...
Olga Rubinas +6 more
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Forbidden minors to graphs with small feedback sets
Discrete Mathematics, 2001 Finite obstruction set characterizations for lower ideals in the minor order are guaranteed to exist by the graph minor theorem. In this paper, the authors characterize several families of graphs with small feedback sets. Their constructive methods can compute obstruction sets for any minor-closed family of graphs, provided the pathwidth (or treewidth)
Michael J. Dinneen +2 more
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