Results 21 to 30 of about 5,260 (193)

How do recollimation-induced instabilities shape the propagation of hydrodynamic relativistic jets?

Astronomy & Astrophysics
Context. Recollimation is a phenomenon of particular importance in the dynamical evolution of jets and in the emission of high-energy radiation. Additionally, the full comprehension of this phenomenon provides insights into fundamental properties of jets
Costa A., Bodo G., Tavecchio F., Rossi P., Coppi P., Sciaccaluga A., Boula S.   +6 more
doaj   +1 more source

Photoactive Tweezers

Advanced Materials, EarlyView.
A photoactive tweezers system based on photoactive colloids is developed and systematically investigated in this study. Through experimental and theoretical methods, we demonstrate that the photoredox reaction catalyzed by a dye‐sensitized TiO2 particle generates a strong positive phototaxis, enabling self‐entrapment in the beam center.
Jingyuan Chen, Qingxin Guo, Shiwei Zhang, Donghao Cui, Changjin Wu, Pei Xu, Wei Wang, Kai Lou, Binglin Zeng, Jinyao Tang   +9 more
wiley   +1 more source

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

Advanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett, Maxwell Hammond, Niloufar Seyfi, Amirreza Fahim Golestaneh, Venanzio Cichella, Caterina Lamuta   +5 more
wiley   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

$$\beta$$ -Fractional $$(n+1)$$ -dimensional generalized KP model: nonlinear dynamical behaviors, analytical wave structures, bifurcation, and sensitivity analysis

Scientific Reports
This study introduces an integrable generalization of the Kadomtsev–Petviashvili model in arbitrary spatial dimensions. The Kadomtsev–Petviashvili equation serves as a fundamental framework in describing a wide range of physical phenomena, including ...
Ulviye Demirbilek, Ali Danladi, Arzu Akbulut, Salah Boulaaras, Karim K. Ahmed   +4 more
doaj   +1 more source

Numerical study of hydrodynamic performance of a heaving buoy wave energy converter in regular waves using the CEL method

Results in Engineering
Wave energy converters (WECs) operating in ocean environments are subject to highly unsteady hydrodynamic loads that significantly influence their performance and structural stability.
Mohammed Karkab, Abdellatif Ghennioui, Khalid Bouziane, Omar Jellouli, Mostapha Tarfaoui   +4 more
doaj   +1 more source

Autonomous Navigation of Pollen‐Inspired Magnetic Microrobots for Biomedical Applications

Advanced Robotics Research, EarlyView.
A sunflower pollen‐inspired magnetic microrobot enables controlled rolling navigation in vessel‐like environments. Its open geometry reduces hydrodynamic drag, while vision‐based closed‐loop control, shortest‐path planning, and reinforcement learning support target‐reaching and maze navigation with microrobot‐scale accuracy, highlighting a route toward
Ali Anil Demircali, Abdurrahim Yilmaz, Meysam Keshavarz, Jinshi Zhao, Ara Darzi, Eric Yeatman, Burak Temelkuran   +6 more
wiley   +1 more source

Chiral Nanoparticles Suppress Inflammatory Infiltration to Promote Extracellular Matrix Remodeling for Ectopia Lentis Therapy

Advanced Science, EarlyView.
L‐cysteine‐configured chiral polyurethane nanoparticles suppress ocular inflammation and reduce extracellular matrix (ECM) degradation in ectopia lentis by regulating macrophages polarization and inhibiting nuclear factor kappa B signaling pathway. By promoting zonular fiber‐associated protein restoration and tissue repair, this minimally invasive ...
Yinuo Wen, Yan Yang, Haihan Gao, Yan Liu, Xinyue Wang, Linghao Song, Ruohong Li, Ao Miao, Jie Xu, Zhennan Zhao, Dan Li, Shenjie Peng, Linzhao Li, Min Zhang, Yonghang Liu, Liren Wang, Tianhui Chen, Yongxiang Jiang   +17 more
wiley   +1 more source

A coupled Nonlinear Shallow Water Equations — Exner approach for wave–sediment interplay in hybrid coastal defense

Applied Ocean Research
Coastal erosion, increasingly driven by human activities and climate change, poses escalating threats to shoreline stability and nearby communities.
Hany Qoshirotur Rif’atin, Ikha Magdalena, Muhammad Syahril Badri Kusuma, Alamsyah Kurniawan   +3 more
doaj   +1 more source