Results 71 to 80 of about 911,203 (241)

An Enhanced MOPSO Method for Distributed Radar Topology Optimization

Sensors
Time difference of arrival (TDOA) localization enables high-accuracy positioning by analyzing arrival-time differences of target signals at distributed radar nodes, whose performance strongly depends on radar node topology. However, existing studies tend
Lin Cao, Shengwu Qi, Zongmin Zhao, Chong Fu, Dongfeng Wang   +4 more
doaj   +1 more source

Topics in Topology and Homotopy Theory [PDF]

, 2005
This book is addressed to those readers who have been through Rotman (or its equivalent), possess a wellthumbed copy of Spanier, and have a good background in algebra and general topology.
Warner, Garth
core  

Paving the Way for Next‐Generation Solid‐State Waste Heat Recovery: A Thermomagnetic Materials and Systems Roadmap

Advanced Functional Materials, EarlyView.
Unlocking thermomagnetic low‐grade waste heat recovery. This perspective provides a comprehensive roadmap for the development of thermomagnetic materials and systems. By addressing key engineering challenges across multiple scales, it bridges the gap between micro‐power IoT devices and large‐scale industrial applications. ABSTRACT Nearly half of global
A. Waske, K. Klinar, S. Fähler, M. Kohl, N. M. Dempsey, F. Albertini, G. A. de Wijs, T. Schrefl, M. Maschek, S. Lionte, C. Megnin, N. van Dijk, A. Kitanovski, E. Brück   +13 more
wiley   +1 more source

A discrete-time model that weakly converges to a continuous-time geometric Brownian motion with Markov switching drift rate

Frontiers in Applied Mathematics and Statistics
This research is devoted to studying a geometric Brownian motion with drift switching driven by a 2 × 2 Markov chain. A discrete-time multiplicative approximation scheme was developed, and its convergence in Skorokhod topology to the continuous-time ...
Vitaliy Golomoziy, Yuliya Mishura, Kamil Kladívko   +2 more
doaj   +1 more source

Abstract Topological Data Structure for 3D Spatial Objects

ISPRS International Journal of Geo-Information, 2019
In spatial science, the relationship between spatial objects is considered to be a vital element. Currently, 3D objects are often used for visual aids, improving human insight, spatial observations, and spatial planning.
Uznir Ujang, Francesc Anton Castro, Suhaibah Azri   +2 more
doaj   +1 more source

3D‐Printed Gradient Shape‐Memory Strain Sensors With Rewritable Gauge Factors

Advanced Functional Materials, EarlyView.
A 3D‐printed shape‐memory strain sensor combines thermomechanical programming with gradient architectural design. Preset strain rewrites the gauge factor (GF), while the gradient geometry amplifies the response through strain redistribution. Reprogrammable sensitivity enables the same sensor to detect weak pulse signals and monitor large‐amplitude ...
Xuan Zhang, Wenjie Qiao, Kaixin Jiang, Sherry Chen, Hanyu Cui, Kirsten Dyer, Xuefeng Zhu, Ting Wang, Xuehua Zhang, Ben Bin Xu, Jie Kong   +10 more
wiley   +1 more source

More Efficient Arm Structures for Construction Robots by Deep Generative Models Based on Topology Optimization

Buildings
To achieve a lightweight and high-stiffness design of robotic arms for construction robots, this paper proposes a novel data-driven generative design framework that integrates topology optimization, 3D generative adversarial networks (GANs), reverse ...
Xu Yang, Wenfeng Du, Wenli Ren, Yuchuan Gao, Nasim Uddin   +4 more
doaj   +1 more source

Molecularly Dissipative Liquid Crystal Elastomer Foams for Impact and Vibration Attenuation

Advanced Functional Materials, EarlyView.
Liquid crystal elastomer foams integrate cellular deformation with mesogen reorientation to create a dual‐scale energy dissipation mechanism. Progressive pore collapse absorbs mechanical loads, while stress‐induced mesogen reorientation provides additional damping, resulting in reduced impact transmission and broadband suppression of vibrational ...
Subi Choi, Sangyeop Lee, In‐sun Jeong, Kyungjun Song, Eugene M. Terentjev, Suk‐kyun Ahn   +5 more
wiley   +1 more source

Inferring functional communities from partially observed biological networks exploiting geometric topology and side information. [PDF]

Sci Rep, 2022
Sia J, Zhang W, Jonckheere E, Cook D, Bogdan P.   +4 more
europepmc   +1 more source

Unexpected Asymmetric Mn‐Sb Site Mixing and Reentrant Spin‐Glass State of MnSb2Te4

Advanced Functional Materials, EarlyView.
MnSb2Te4 is an intrinsic magnetic topological insulator. Its properties are extraordinarily sensitive to tiny defects, making structural studies essential for understanding how magnetism and topology work together. This work shows that Mn can be unevenly distributed within the crystal and how that disorder is linked to a newly reported spin‐glass state
Gustavo Chavez Ponce de Leon, Ahmad Dibajeh, Gert ten Brink, Majid Ahmadi, Suyang Sun, Wei Zhang, Bart Jan Kooi, George Palasantzas   +7 more
wiley   +1 more source