Results 141 to 150 of about 174,518,636 (296)

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source

3D‐Printing Aided Rapid Prototyping of Pretensioned Tensegrity Structures for Robotic Applications

Advanced Robotics Research, EarlyView.
Printing, injection molding, and assembly (PMA) is a method for rapid prototyping mesoscale, topologically complex, and tensioned tensegrity structures. In combination with PMA method, two mold design strategies: modular mold and compact channel layout, enable efficiency and scalability for tensegrity fabrication.
Yi Sun, Jan Petrš, Omar Aloui, Dario Floreano   +3 more
wiley   +1 more source

Vertex-degree-based topological indices over trees with two branching vertices

, 2019
: Given a graph G with n vertices, a vertex-degree-based topological index is defined from a set of real numbers {φij} as T I (G) = Pmij (G) φij , where mij (G) is the number of edges between vertices of degree i and degree j, and the sum runs over all 1
Rada Rincón, Juan Pablo, Marín Arango, Carlos Alberto, Cruz Rodes, Roberto   +2 more
core   +1 more source

Some Inequalities between General Randić-Type Graph Invariants

Journal of Mathematics
The Randić-type graph invariants are extensively investigated vertex-degree-based topological indices and have gained much prominence in recent years.
Imran Nadeem, Saba Siddique, Yilun Shang
doaj   +1 more source

Counting triangulations of fixed cardinal degrees

Journal of Computational Geometry
A fixed set of vertices in the plane may have multiple planar straight-line triangulations in which the degree of each vertex is the same. As such, the degree information does not completely determine the triangulation. We show that even if we know, for
Erin Chambers, Tim Ophelders, Anna Schenfisch, Julia Sollberger   +3 more
doaj   +1 more source

Push the Limits: Human‐Like Multimodal Extreme Embodied Intelligence for Autonomous Racing

Advanced Robotics Research, EarlyView.
Autonomous racing tests embodied intelligence under extreme control limits of speed, actuation, and decision‐making. Inspired by human multimodality, we present Apex, an embodied agent deployed on a super‐formula racing car at Yas Marina. Integrating physics‐informed perception, multimodal learning, and tasking, Apex cuts lap times by 15% and achieves ...
Yanxin Zhou, Baichuan Lou, Wenhui Huang, Binbin Hu, Haohan Yang, Haochen Liu, Xiangkun He, Chee Kiong Ong, Yiran Zhang, Tianchu Su, Bolin Zhao, Xiaoyu Mo, Holden King Ho Li, Chen Lv   +13 more
wiley   +1 more source

Smallest vertex-transitive graphs of given degree and diameter

, 2014
For every d and k, we determine the smallest order of a vertex-transitive graph of degree d and diameter k, and in each such case we show that this order is achieved by a Cayley ...
Širáň, Jozef, Martin Knor, Jozef Širáň, Knor, Martin   +3 more
core   +1 more source

A tabu search heuristic based on k-diamonds for the weighted feedback vertex set problem

Given an undirected and vertex weighted graph G = (V,E,w), the Weighted Feedback Vertex Problem (WFVP) consists of finding a subset F ⊆ V of vertices of minimum weight such that each cycle in G contains at least one vertex in F.
Gentili, Monica, Parlato, Gennaro, Cerulli, Raffaele, Carrabs, Francesco   +3 more
core   +1 more source

Nonreciprocal Swarmalators With Reconfigurable and Controllable Formations for Robot Collectives

Advanced Robotics Research, EarlyView.
Nonreciprocal swarmalator interactions are enabled through control barrier functions to transform self‐organizing robot collectives into reconfigurable, constraint‐aware systems. Complex two‐ and three‐dimensional shapes, continuous morphing, obstacle‐aware navigation, collective splitting, and object transport emerge from modulating agent‐level ...
Kush Patel, Xinyue Xu, Wei Xiao, Steven Ceron   +3 more
wiley   +1 more source

The effects of direction of vertex in judging positions of vertex of holes

, 2004
Researchers have reported that observers are faster at judging the position of convex vertices than concave ones (Perception 30 (2001) 1295), and a reversal of the relative speeds were found when the same contours were presented as holes instead of ...
X. L. Fu, Y. M. Xuan
core