Results 61 to 70 of about 13,073 (314)

Hysteresis in quantized vortex shedding [PDF]

Physical Review A, 2014
It is shown using numerical simulations that flow patterns around an obstacle potential moving in a superfluid exhibit hysteresis. In a certain velocity region, there is a bistability between stationary laminar flow and periodic vortex shedding. The bistability exists in two and three dimensional systems.
Kadokura, Tsuyoshi, Yoshida, Jun, Saito, Hiroki   +2 more
openaire   +2 more sources

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

An analysis of a two cylinder-fluid interaction at critical gap spacing by a cell boundary element method [PDF]

, 2008
Incompressible viscous, uniform flow past two parallel cylinders of equal diameter at a critical gap spacing g? = 0.90 to 1.10 is investigated using the viscous cell boundary element method. In this critical flow zone an irregular interchange of in-phase
Tan, M., A. B. Ravi, W. G. Price, Ravi, A.B., Price, W.G., M. Tan   +5 more
core   +1 more source

Tunable 3D‐Printed Static Mixers for Gradient Bioprinting With High Cell Viability

Advanced Materials Technologies, EarlyView.
ABSTRACT The fabrication of native tissue‐like structures with gradual transitions in material properties, cell types, and growth factors remains a major challenge in biofabrication due to the lack of suitable methods. Mimicking the hierarchical organization of living tissues is essential for functional models, yet creating gradient, multimaterial ...
Florian Hofmann, Jessica Faber, Franz Moser, Alessandro Cianciosi, Nicoletta Murenu, Joachim Schenk, Katrin G. Heinze, Natascha Schaefer, Silvia Budday, Tomasz Jungst   +9 more
wiley   +1 more source

Transient Simulations Based on the Wake of a Tapered Circular Cylinder

Fluids
Numerical techniques have been developed to study flow structures in the wake behind a tapered circular cylinder via computational fluid dynamics. The Reynolds number, based on the mean diameter of the tapered cylinder, is 4 × 103; here, the boundary ...
Jiann-Lin Chen, Shu-Han Hsu, Chun-Lin Chu   +2 more
doaj   +1 more source

Large eddy simulation of flow past a stationary and controlled oscillating circular cylinder at RE=5500 [PDF]

, 2013
Vortex shedding from a stationary cylinder and transversely oscillating circular cylinder in a uniform flow at a Reynolds number of 5500 is numerically studied by three-dimensional Large Eddy Simulation (LES). The filtered equations are discretised using
Philip A. Wilson, Kim, Sunghan, Sunghan Kim, Zhi-Min Chen, Wilson, Philip A., Chen, Zhimin   +5 more
core   +1 more source

Optical Manipulation of Whispering Gallery Mode Microlasers for Controlled Cellular Delivery

Advanced Optical Materials, EarlyView.
Optically trapped whispering‑gallery microlasers are precisely positioned onto non‐phagocytic mammalian cells to report local refractive‑index changes in real time. Time‑dependent wavelength shifts reveal successive stages from membrane contact to internalization.
Soraya Caixeiro, Paloma Rodríguez‐Sevilla, Kishan Dholakia, Malte C. Gather   +3 more
wiley   +1 more source

Vortex-induced vibration of circular cylinder with two degrees of freedom : CFD vs. reduced-order models [PDF]

, 2013
This paper discusses vortex-induced vibration of circular cylinder with two degrees of ...
Xiao, Qing, Zanganeh, Hossein, Srinil, Narakorn, Wang, Enhao   +3 more
core  

Multi-frequency vortex-induced vibrations of a long tensioned beam in linear and exponential shear flows [PDF]

, 2013
The multi-frequency vortex-induced vibrations of a cylindrical tensioned beam of aspect ratio 200, free to move in the in-line and cross-flow directions within first a linearly and then an exponentially sheared current are investigated by means of direct
Triantafyllou, Michael S., Karniadakis, George E., Bourguet, Rémi   +2 more
core   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source