Enhancement of passive mixing via arc microchannel with sharp corner structure

2021 ◽  
Author(s):  
Long-Run Huang ◽  
Liang-Liang Fan ◽  
Qi Liu ◽  
Zhi Zhao ◽  
Jiang Zhe ◽  
...  
Keyword(s):  
Sharp Corner ◽  
Passive Mixing

scholarly journals Enhanced passive mixing for paper microfluidics

RSC Advances ◽  
2021 ◽  
Vol 11 (41) ◽  
pp. 25677-25685
Author(s):  
Nurul Nadiah Hamidon ◽  
Gert IJ. Salentijn ◽  
Elisabeth Verpoorte
Keyword(s):  
Paper Microfluidics ◽  
Passive Mixing ◽  
Narrow Gaps

Efficient passive mixing can be achieved by contricting the reagent flow using structures having narrow gaps.

scholarly journals None sharp corner localized surface plasmons resonance based ultrathin metasurface single layer quarter wave plate

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Qinyu Qian ◽  
Pengfei Liu ◽  
Li Fan ◽  
Liang Zhao ◽  
Chinhua Wang
Keyword(s):  
Surface Plasmons ◽  
Amplitude Ratio ◽  
Single Layer ◽  
Quarter Wave Plate ◽  
Localized Surface Plasmons ◽  
Sharp Corner ◽  
Wave Plate ◽  
Nanophotonic Devices ◽  
Elliptical Ring ◽  
Quarter Wave

AbstractWe report on a non-sharp-corner quarter wave plate (NCQW) within the single layer of only 8 nm thickness structured by the Ag hollow elliptical ring array, where the strong localized surface plasmons (LSP) resonances are excited. By manipulating the parameters of the hollow elliptical ring, the transmitted amplitude and phase of the two orthogonal components are well controlled. The phase difference of π/2 and amplitude ratio of 1 is realized simultaneously at the wavelength of 834 nm with the transmission of 0.46. The proposed NCQW also works well in an ultrawide wavelength band of 110 nm, which suggests an efficient way of exciting LSP resonances and designing wave plates, and provides a great potential for advanced nanophotonic devices and integrated photonic systems.

Passive mixing of co-flowing slugs in grooved microchannels

2012 ◽  
Vol 19 (1) ◽  
pp. 17-24 ◽  
Author(s):  
S. Hasnain ◽  
A. Kumar ◽  
S. Ganguly
Keyword(s):  
Passive Mixing

scholarly journals Consensus Based Platoon Algorithm for Velocity-Measurement-Absent Vehicles with Actuator Saturation

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Maode Yan ◽  
Ye Tang ◽  
Panpan Yang ◽  
Lei Zuo
Keyword(s):  
Adaptive Control ◽  
Control Strategy ◽  
Smooth Function ◽  
Velocity Measurement ◽  
Actuator Saturation ◽  
Sharp Corner ◽  
Control Approach ◽  
Input Signals ◽  
Vehicle Platoon ◽  
Novel Algorithm

We investigate the vehicle platoon problems, where the actuator saturation and absent velocity measurement are taken into consideration. Firstly, a novel algorithm, where a smooth function is introduced to deal with the sharp corner of the input signals, is proposed for a group of vehicles with actuator saturation by using the consensus theory. Secondly, by applying an auxiliary system for the followers to estimate the velocities, a control strategy for the vehicle platoon with actuator saturation and absent velocity measurement is designed via the adaptive control approach. Finally, numerical simulations are provided to illustrate the effectiveness of the proposed approaches.

Rapid microfluidic mixer utilizing sharp corner structures

2017 ◽  
Vol 21 (3) ◽  
Author(s):  
Liang-Liang Fan ◽  
Xiao-Liang Zhu ◽  
Hong Zhao ◽  
Jiang Zhe ◽  
Liang Zhao
Keyword(s):  
Sharp Corner ◽  
Microfluidic Mixer

Optimized design of obstacle sequences for microfluidic mixing in an inertial regime

Lab on a Chip ◽  
2021 ◽  
Vol 21 (20) ◽  
pp. 3910-3923
Author(s):  
Matteo Antognoli ◽  
Daniel Stoecklein ◽  
Chiara Galletti ◽  
Elisabetta Brunazzi ◽  
Dino Di Carlo
Keyword(s):  
Optimized Design ◽  
Fast Method ◽  
Microfluidic Mixing ◽  
Passive Mixing ◽  
Contact Surfaces ◽  
Inertial Regime

A fast method for designing optimal sequences of passive mixing units is provided for inertial flows. Intense mixing is achieved through highly-controlled stretching of the fluid contact surfaces.

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