Article
Physics, Multidisciplinary
Changyeob Baek, Alison G. Martin, Samuel Poincloux, Tian Chen, Pedro M. Reis
Summary: The technique of triaxial weaving involves creating curved structures using initially straight ribbons and tuning the in-plane curvature to vary the Gaussian curvature continuously. The shape of the physical unit cells is determined by the in-plane geometry of the ribbons, rather than elasticity. By leveraging the geometry-driven nature of triaxial weaving, smooth spherical, ellipsoidal, and toroidal structures can be designed.
PHYSICAL REVIEW LETTERS
(2021)
Article
Engineering, Civil
Guang-Kai Song, Bo-Hua Sun
Summary: Triaxial weaving is used to transform two-dimensional structures into three-dimensional structures using straight ribbons. However, using naturally curved ribbons can result in smoother and more stable 3D surface structures. This research investigates the buckling behavior of ellipsoidal weaves with naturally curved ribbons, and the results show that thicker or wider ribbons exhibit higher load capacity and stability.
THIN-WALLED STRUCTURES
(2023)
Article
Computer Science, Software Engineering
Yingying Ren, Julian Panetta, Tian Chen, Florin Isvoranu, Samuel Poincloux, Christopher Brandt, Alison Martin, Mark Pauly
Summary: The article discusses a method to construct arbitrary smooth free-form surface geometries by weaving optimized curved ribbons, validated through a series of physical prototypes. The approach is expected to significantly enhance the design capabilities of new woven structures.
ACM TRANSACTIONS ON GRAPHICS
(2021)
Article
Engineering, Civil
Guang-Kai Song, Bo-Hua Sun
Summary: This paper investigates the buckling mechanical properties of spherical woven structures under vertical loads. Different types of ribbons and various ribbon widths and thicknesses were designed and tested. The results show that the failure mode of the spherical weave structure can be divided into two stages. Spherical weave structures using naturally curved ribbons have better buckling stability.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2023)
Article
Multidisciplinary Sciences
Jiro Murata
Summary: This paper discusses the question of why curling stones curl and provides a possible explanation based on experimental evidence. The study suggests that there is left-right asymmetric friction in the motion of the curling stone, and swinging around slow-side friction points is concluded as the dominant origin of the curling.
SCIENTIFIC REPORTS
(2022)
Review
Chemistry, Multidisciplinary
Denis D. Sheka, Oleksandr Pylypovskyi, Oleksii M. Volkov, Kostiantyn Yershov, Volodymyr P. Kravchuk, Denys Makarov
Summary: Low-dimensional magnetic architectures, such as wires and thin films, play a crucial role in the development of ultrafast and energy-efficient memory, logic, and sensor devices. Curvilinear magnetism, which relies on the geometrical curvature of magnetic architectures, offers a novel approach for tailoring anisotropic and chiral responses. This article summarizes theoretical activities on curvilinear magnetic wires and nanoribbons, explores the emergent interactions and physical effects caused by curvature, and discusses prospective research directions in spintronics, spin-orbitronics, and mechanically flexible architectures for soft robotics.
Article
Materials Science, Multidisciplinary
Xiang Chang, Wenzhi Fu, Mingzhe Li, Xintong Wang, Weifeng Yang, Yushan Deng
Summary: Rolling technology based on arc-shaped rollers is used to rapidly manufacture 3D curved parts with a pair of arc-shaped rollers forming uneven roll gaps. The study shows that increasing the rolling reduction leads to significant longitudinal bending deformation in the formed 3D curved parts, while ensuring the minimum rolling reduction is greater than zero results in better shape accuracy.
Article
Chemistry, Multidisciplinary
Naizhang Sun, Mingchao Wang, Ruge Quhe, Yumin Liu, Wenjun Liu, Zhenlin Guo, Han Ye
Summary: Based on density functional theory, this study theoretically investigated the electronic structures of free-standing armchair Janus MoSSe nanoribbons and explored their curvature characteristics and bandgap changes. The research also discussed the process of spontaneous curling of nanoribbons to form nanotubes, laying the foundation for novel devices based on Janus TMD nanoribbons.
Article
Engineering, Mechanical
Slavomir Hrcek, Lukas Smetanka, Jan Steininger, Branislav Patin
Summary: The research aims to increase the durability of curved bodies with line contact by changing their shape, with a focus on calculating and comparing the durability of rolling elements with fully crowned profile and logarithmic profile.
MECHANISM AND MACHINE THEORY
(2022)
Article
Mechanics
Tao Zhang, Kejing Xu, Chongguang Shi, Chengxiang Zhu, Yancheng You
Summary: This paper examines the reflection of curved shock waves over a symmetry plane in planar supersonic flow, including the transition from stable Mach reflection to regular reflection. Curved shock theory is applied to determine the parameters before and after the shock wave. An analytical model based on curved shock characteristics is used to predict the wave configurations, which are in good agreement with numerical results. The study also investigates the influence of isentropic waves on flow patterns and the evolution mechanism of the Mach stem during the transition from regular reflection to Mach reflection. The extended curved shock theory in a moving frame is employed to model the transition process and analyze the effects of incident shock angle and isentropic waves.
JOURNAL OF FLUID MECHANICS
(2023)
Article
Mechanics
Saman Ebrahimi, Peter Balogh, Prosenjit Bagchi
Summary: The migration of deformable capsules in three-dimensional curved vessels is influenced by the vessel curvature and curvature change due to their impact on the flow field. In toroidal vessels, capsules settle in locations away from the vessel centerline, with equilibrium positions shifting towards the inner surface as vessel curvature increases. Secondary flow, such as Dean's vortex, plays a significant role in determining the equilibrium locations of capsules in different regions of the vessel.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Acoustics
Ruiqi Zhang, Liang Guo, Zhuyuxiu Zong, Hongli Gao, Mengui Qian, Zaigang Chen
Summary: Accurately establishing a dynamic model of rolling bearings is essential for understanding the fault mechanism and analyzing the motion characteristics. A four-degree-of-freedom bearing dynamics model based on Hertz basis theory is proposed, considering the time-varying displacement excitation function and validating its accuracy through comparison with experimental signals. The influence of rotational speeds and defect sizes on the vibration characteristics of the bearing rolling element fault is analyzed and summarized based on the mechanical model and experimental data.
JOURNAL OF SOUND AND VIBRATION
(2023)
Article
Engineering, Mechanical
Chih-Ling Lin, Paul A. Meehan
Summary: This study characterises wear debris in grease-lubricated spherical roller bearings used in urban rolling stock, revealing that wear is mainly associated with rolling/sliding contact and adhesive mechanisms. Morphological changes in spherical and chunky wear debris associated with bearings' service life were observed, with chunky wear debris formation not necessarily governed by rolling contact fatigue but rather the collapse of larger spherical wear debris.
Article
Engineering, Mechanical
Rui Pan, Yuda Chen, Hu Lan, E. Shiju, Ruiming Ren
Summary: This paper investigates the microstructural evolution and damage characteristics of curved railway tracks, providing a theoretical basis for analyzing rail failure mechanisms and improving their service life.
Article
Materials Science, Ceramics
Hongjie Xu, Yang Shao, Shuangqin Chen, Kefu Yao
Summary: A stress-induced activation strategy was proposed to improve the degradation performance of Fe-based metallic glass ribbons for azo dye. Experimental results confirmed that the stress introduced by rolling treatment decreased the activation energy, leading to enhanced degradation activity.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Multidisciplinary Sciences
Luca Lanotte, Johannes Mauer, Simon Mendez, Dmitry A. Fedosov, Jean-Marc Fromental, Viviana Claveria, Franck Nicoud, Gerhard Gompper, Manouk Abkarian
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2016)
Article
Chemistry, Physical
Hyunjae Shin, Atray C. Dixit, Howard A. Stone, Manouk Abkarian, Pilnam Kim
Article
Chemistry, Physical
Matthieu Robert de Saint Vincent, Manouk Abkarian, Herve Tabuteau
Article
Chemistry, Physical
Viviana Claveria, Othmane Aouane, Marine Thiebaud, Manouk Abkarian, Gwennou Coupier, Chaouqi Misbah, Thomas John, Christian Wagner
Article
Physics, Multidisciplinary
Suzie Protiere, Christophe Josserand, Jeffrey M. Aristoff, Howard A. Stone, Manouk Abkarian
PHYSICAL REVIEW LETTERS
(2017)
Article
Hematology
Philippe Connes, Celine Renoux, Marc Romana, Manouk Abkarian, Philippe Joly, Cyril Martin, Marie-Dominique Hardy-Dessources, Samir K. Ballas
CLINICAL HEMORHEOLOGY AND MICROCIRCULATION
(2018)
Article
Multidisciplinary Sciences
Maria Andreadaki, Eric Hanssen, Elena Deligianni, Cyrille Claudet, Kai Wengelnik, Vanessa Mollard, Geoffrey I. McFadden, Manouk Abkarian, Catherine Braun-Breton, Inga Siden-Kiamos
SCIENTIFIC REPORTS
(2018)
Article
Physics, Multidisciplinary
Johannes Mauer, Simon Mendez, Luca Lanotte, Franck Nicoud, Manouk Abkarian, Gerhard Gompper, Dmitry A. Fedosov
PHYSICAL REVIEW LETTERS
(2018)
Article
Physics, Fluids & Plasmas
Simon Mendez, Manouk Abkarian
PHYSICAL REVIEW FLUIDS
(2018)
Article
Multidisciplinary Sciences
Manouk Abkarian, Simon Mendez, Nan Xue, Fan Yang, Howard A. Stone
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Physics, Fluids & Plasmas
Philippe Bourrianne, Nan Xue, Janine Nunes, Manouk Abkarian, Howard A. Stone
Summary: Face masks are widely used to mitigate the spread of infectious diseases by filtering pathogenic droplets and transforming exhaled jetlike flows into vertical buoyancy-driven flows. This study provides quantitative insights on how masks change airflow, offering strong mitigation of direct transmission of infectious material.
PHYSICAL REVIEW FLUIDS
(2021)
Article
Physics, Applied
Philippe Bourrianne, Paul R. Kaneelil, Manouk Abkarian, Howard A. Stone
Summary: This study investigates the contamination within rehearsing choirs during the COVID-19 pandemic. It finds that singing and playing wind instruments generate respiratory droplets that are transported through expiratory flows. By tracking the exhaled air of professional opera singers and musicians, the researchers measure the extent of different air flows in opera. They also discover that wearing face masks while singing and covering the bell of a wind instrument can reduce the transport of respiratory droplets.
PHYSICAL REVIEW APPLIED
(2022)
Article
Biochemistry & Molecular Biology
Rakhee Lohia, Benoit Allegrini, Laurence Berry, Helene Guizouarn, Rachel Cerdan, Manouk Abkarian, Dominique Douguet, Eric Honore, Kai Wengelnik
Summary: A gain-of-function variant (E756del) in the PIEZO1 channel prevents severe malaria. Activation of PIEZO1 by Yoda1 and Jedi2 inhibitors induces echinocytosis and dehydration of red blood cells, inhibiting invasion by Plasmodium falciparum.
CELLULAR AND MOLECULAR LIFE SCIENCES
(2023)
Article
Biochemical Research Methods
Marianne Fenech, Vincent Girod, Viviana Claveria, Sebastien Meance, Manouk Abkarian, Benoit Charlot
Article
Physics, Fluids & Plasmas
Luca Lanotte, Didier Laux, Benoit Charlot, Manouk Abkarian
Article
Chemistry, Physical
Yiping Yin, Zhe Wang, Hua Zou
Summary: This study presents a novel method for preparing dimpled polymer-silica nanocomposite particles using interfacial swelling-based seeded polymerization. The optimized conditions allow for a relatively high percentage of dimpled particles to be achieved.
Article
Chemistry, Physical
Brenden D. Hoehn, Elizabeth A. Kellstedt, Marc A. Hillmyer
Summary: Porous materials with nanometer-scale pores have important applications as nanoporous membranes. In this study, ABA triblock copolymers were used as precursors to produce nanoporous polymeric membranes (NPMs) in thin film form by degrading the end blocks. Polycyclooctene (PCOE) NPMs with tunable pore sizes were successfully prepared using solvent casting technique. Oxygen plasma etching was employed to improve the surface porosity and hydrophilicity of the membranes. This study provides a straightforward method to produce tough NPMs with high porosity and hydrophilic surface properties.
Article
Chemistry, Physical
Vladislav S. Petrovskii, Stepan I. Zholudev, Igor I. Potemkin
Summary: This article investigates the behavior of linear and ring polypeptide chains in aqueous solution and explores the properties of the complexes formed by these chains with oppositely charged surfactants. The results demonstrate that the complexes of linear supercharged unfolded polypeptides and the corresponding surfactants exhibit impressive adhesive properties.
Article
Chemistry, Physical
Merve Cevik, Serkan Dikici
Summary: Cardiovascular diseases are a leading cause of death globally, and vascular grafts are a promising treatment option. This study focuses on tissue-engineered vascular grafts (TEVGs) using decellularized parsley stems as a potential biomaterial. The decellularized parsley stems showed suitable properties for TEVGs, providing a suitable environment for human endothelial cells to form a pseudo endothelium. This study showcases the potential of using parsley stems for TEVGs.
Article
Chemistry, Physical
Gustavo A. Vasquez-Montoya, Tadej Emersic, Noe Atzin, Antonio Tavera-Vazquez, Ali Mozaffari, Rui Zhang, Orlando Guzman, Alexey Snezhko, Paul F. Nealey, Juan J. de Pablo
Summary: The optical properties of liquid crystals are typically controlled by electric fields. In this study, we investigate the effects of microfluidic flows and acoustic fields on the molecular orientation and optical response of nematic liquid crystals. We identify several previously unknown structures and explain them through calculations and simulations. These findings hold promise for the development of new systems combining sound, flow, and confinement.
Article
Chemistry, Physical
Xinjun Wu, Xin Guan, Shushu Chen, Jiangpeng Jia, Chongyi Chen, Jiawei Zhang, Chuanzhuang Zhao
Summary: This research presents a novel shape memory hydrogel with a remodelable permanent shape and programmable cold-induced shape recovery behavior. The hydrogel is prepared using specific treatment methods to achieve shape fixation by heating and shape recovery by cooling. Additionally, deformable devices can be obtained by assembling hydrogel blocks with different concentrations.
Article
Chemistry, Physical
Rebecca Hengsbach, Gerhard Fink, Ulrich Simon
Summary: This study examines the properties of DNA functionalized pNipmam microgels and pure pNipmam microgels at different concentrations of sodium chloride and in PBS solutions using temperature dependent H-1-NMR measurements. The results show that DNA modification affects the volume phase transition temperature and the addition of salt and PBS further enhances this effect.
Article
Chemistry, Physical
Ningyi Li, Junhong Li, Lijingting Qing, Shicheng Ma, Yao Li, Baohui Li
Summary: This paper investigates the self-assembly behavior of colloids with competing interactions under spherical confinement and finds that different ordered structures can be formed under different sized spherical confinements. Moreover, more perforated structures are formed in smaller spheres.