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Mechanics and wrinkling patterns of pressurized bent tubes

Autor: Pastrana, Cesar L., Qiu, Luyi, Hutchinson, John W., Amir, Ariel, Gerland, Ulrich

Take a drinking straw and bend it from its ends. After sufficient bending, the tube buckles forming a kink, where the curvature is localized in a very small area. This instability, known generally as the Brazier effect, is inherent to thin-walled cyl

Externí odkaz: http://arxiv.org/abs/2402.17033

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Coupling Coordinated Development among Digital Economy, Regional Innovation and Talent Employment A case study of Hangzhou Metropolitan Circle, China

Autor: Qiu, Luyi

Coordination development across various subsystems, particularly economic, social, cultural, and human resources subsystems, is a key aspect of urban sustainability that has a direct impact on the quality of urbanization. Hangzhou Metropolitan Circle

Externí odkaz: http://arxiv.org/abs/2310.19008

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A Dual Attentive Generative Adversarial Network for Remote Sensing Image Change Detection

Autor: Qiu, Luyi, Zhang, Xiaofeng, Gu, ChaoChen, Zhu, and ShanYing

Remote sensing change detection between bi-temporal images receives growing concentration from researchers. However, comparing two bi-temporal images for detecting changes is challenging, as they demonstrate different appearances. In this paper, we p

Externí odkaz: http://arxiv.org/abs/2310.01876

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Efficient Remote Sensing Segmentation With Generative Adversarial Transformer

Autor: Qiu, Luyi, Yu, Dayu, Zhang, Xiaofeng, Zhang, Chenxiao

Most deep learning methods that achieve high segmentation accuracy require deep network architectures that are too heavy and complex to run on embedded devices with limited storage and memory space. To address this issue, this paper proposes an effic

Externí odkaz: http://arxiv.org/abs/2310.01292

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Pressure-induced Shape-shifting of Helical Bacteria

Autor: Pastrana, Cesar L., Qiu, Luyi, Armon, Shahaf, Gerland, Ulrich, Amir, Ariel

Publikováno v: Soft Matter 19(12):2224-2230 (2023)

Many bacterial species are helical in form, including the widespread pathogen H. pylori. Motivated by recent experiments on H. pylori showing that cell wall synthesis is not uniform, we investigate the possible formation of helical cell shape induced

Externí odkaz: http://arxiv.org/abs/2205.09688

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Bending Instability of Rod-shaped Bacteria

Autor: Qiu, Luyi, Hutchinson, John W., Amir, Ariel

Publikováno v: Phys. Rev. Lett. 128, 058101 (2022)

A thin-walled tube, e.g., a drinking straw, manifests an instability when bent by localizing the curvature change in a small region. This instability has been extensively studied since the seminal work of Brazier nearly a century ago. However, the sc

Externí odkaz: http://arxiv.org/abs/2108.02780

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Magnon transport in quasi-two-dimensional van der Waals antiferromagnets

Autor: Xing, Wenyu, Qiu, Luyi, Wang, Xirui, Yao, Yunyan, Ma, Yang, Cai, Ranran, Jia, Shuang, Xie, X. C., Han, Wei

Publikováno v: Phys. Rev. X 9, 011026 (2019)

The recent emergence of 2D van der Waals magnets down to atomic layer thickness provides an exciting platform for exploring quantum magnetism and spintronics applications. The van der Waals nature stabilizes the long-range ferromagnetic order as a re

Externí odkaz: http://arxiv.org/abs/1902.04719

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