Results 41 to 50 of about 848 (243)

Edge δ− Graceful Labeling for Some Cyclic-Related Graphs

Advances in Mathematical Physics, 2020
In this paper, we introduce a new type of labeling of a graph G with p vertices and q edges called edge δ− graceful labeling, for any positive integer δ, as a bijective mapping f of the edge set EG into the set δ,2δ,3δ,⋯,qδ such that the induced mapping ...
Mohamed R. Zeen El Deen
doaj   +1 more source

Block-Graceful Designs

Journal of Mathematics, 2023
In this article, we adapt the edge-graceful graph labeling definition into block designs and define a block design V,B with V=v and B=b as block-graceful if there exists a bijection f:B⟶1,2,…,b such that the induced mapping f+:V⟶Zv given by f+x=∑x∈AA ...
Dilara Erdemir, Emre Kolotoğlu
doaj   +1 more source

The gracefulness of the join of graphs (II)

AKCE International Journal of Graphs and Combinatorics, 2015
AbstractIn this paper, we present some new families of graceful join of graphs and propose a few unsolved problems in this area.
Khee Meng Koh, L. Y. Phoon, Kian Wee Soh
openaire   +3 more sources

Robotic Assistants in the Operating Room: A Systematic Review of Vision‐Based Systems for Nonoperative Tasks

Advanced Robotics Research, EarlyView.
This review brings together 20 publications describing 11 robotic system families developed for instrument handling, sterile‐package opening, supply delivery, and operating room logistics. Perception is becoming more capable through deep learning and language‐guided control, but autonomy remains limited, evidence is largely laboratory‐based, and no ...
Eugenia Mawuenya Akpo, Pietro Falco, Nicholas Raison, Christos Bergeles, Letizia Gionfrida   +4 more
wiley   +1 more source

Robotics in Ionizing Radiation Environments: Vulnerabilities, Hardening, and Future Directions

Advanced Robotics Research, EarlyView.
Radiation exposure causes cumulative degradation in robotic sensors, actuators, and electronic logic, often leading to undetected failures. This study maps component vulnerabilities, evaluates hardening and shielding strategies, and identifies testing gaps that must be addressed to enable next‐generation radiation‐tolerant robotic systems.
Francis A. K. Djirackor, Josephine T. Djirackor, Amanuel Abrdo Tereda, Sun Yi, Younho Seong   +4 more
wiley   +1 more source

LOCKS AND FORBIDDEN CONFIGURATIONS IN 4-GRACEFUL TREES

Ural Mathematical Journal
Let \(f\) be a proper coloring of the vertices of a simple graph \(G\) into colors from the set of colors \(\{1, 2, \dots, k\}\). A coloring \(f\) on the set of edges of a graph \(G\) induces a function \(f'(e) = \vert{}f(u) - f(v)\vert{}\), where \(e ...
Vitaly A. Baransky, Ilia A. Nasyrov, Tatiana A. Senchonok   +2 more
doaj   +1 more source

A Multidimensional Engineering Strategy Reprograms Microglia via Targeted and Sustained‐Release Extracellular Vesicles for Spinal Cord Injury Repair

Advanced Science, EarlyView.
A multifunctional EV‐based nanoplatform (Ang‐TEVs@Gel) was engineered via preconditioning, surface targeting, and ROS‐responsive hydrogel encapsulation to reprogram microglia. This system restored autophagy via miR‐664a‐3p/PIK3CA axis, cleared myelin debris, resolved neuroinflammation, and promoted axon remyelination, ultimately achieving robust motor ...
Wu Xiong, Minhao Liu, Mingming Zheng, Jizhou Jia, Ziyan Zhu, Guang Kong, Jie Liu, Juan Wang, Wenbo Li, Qingyuan Wang, Qian Zhu, Peiran Chan, Tao Qin, Jiayang Wu, Yongjie Zhang, Chunming Tang, Cong Li, Jin Fan   +17 more
wiley   +1 more source

PRISM, a Bidirectional NMR Foundation Model: From Peak List to Structure and Back

Angewandte Chemie, EarlyView.
Structure elucidation from NMR can consume an expert for hours or even days. PRISM addresses this with a bidirectional transformer trained on 1.19 M real experimental spectra: it translates 1H and 13C peak lists into structures with 60.1% stereo‐aware top‐1 accuracy (72.5% stereo‐unaware), and, working in reverse, predicts spectra back from structures,
Ajnabiul Hoque, Frank Glorius
wiley   +2 more sources

Ultrafast Chemical Pre‐Sodiation of Pseudocapacitive CaV8O20 Anodes for High‐Performance Sodium‐Ion Capacitors

Advanced Science, EarlyView.
An ultrafast (2‐minute), gas‐free chemical pre‐sodiation strategy using Na‐benzophenone is developed to compensate for initial sodium loss in calcium vanadate (CaV8O20). Driven by the Ca2+ ‘spectator effect’, the framework enables highly reversible, quasi‐zero‐strain solid‐solution sodium storage, explicitly bypassing destructive conversion reactions ...
Neetu Bansal, Anwar Hussain, Radhey Shyam Yadav, Prakash Kumar Pathak, Minjoong Kim, Tobias Mattisson, Heejoon Ahn, Rahul R. Salunkhe   +7 more
wiley   +1 more source

A Thickness‐Invariant Origami Robot With Integrated Actuation and Multimodal Locomotion

Advanced Science, EarlyView.
A thickness‐invariant variation on the Yoshimura origami pattern is used as the basis of a robot, allowing power, actuation, and control systems to be embedded within the thickened panels of the pattern. The robot uses multiple kinematic branches to achieve distinct modes of locomotion, such as walking, running, galloping, and turning. ABSTRACT Origami
Davis Wing, Sam Bridge, William Bowler, Nathan Usevitch, Larry Howell   +4 more
wiley   +1 more source