Results 61 to 70 of about 3,367 (185)
Numerical Simulations and Genetic Algorithm Optimization of an Innovative Non-Mechanical Piezoelectric Micropump with a Diffuser Nozzle Valve [PDF]
Iranian Journal of Chemistry & Chemical EngineeringMicropumps play a crucial role in various drug delivery applications. Non-mechanical micropumps offer simplicity by eliminating moving parts. These pumps operate by displacing small volumes of fluid, prompting the exploration of innovative enhancement ...
Seyyed Amirreza Abdollahi +2 more
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Experimental methods in chemical engineering: Magnetometry
The Canadian Journal of Chemical Engineering, Volume 104, Issue 10, Page 5176-5188, October 2026.Abstract Magnetometry is a non‐invasive technique to characterize the behaviour of magnetic materials of which the most common contain Fe, Co, and Ni. Vibrating sample magnetometers (VSMs) vibrate samples at a fixed frequency in a static, homogeneous magnetic field to induce a voltage in pick up coils according to Faraday's law of induction.
Michael Claeys +3 more
wiley +1 more source
Photothermal bubble: Dynamics, manipulation, and applications
Droplet, Volume 5, Issue 4, October 2026.As a versatile platform for bubble manipulation, photothermal techniques empower diverse operations: planar translation by scanning the laser spot, sustained periodic bouncing from competing thermal and hydrodynamic flows, and even guided 3D trajectories achieved by tailoring the heating configuration.
Man Hu, Feng Wang, Daosheng Deng
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Nano Select, Volume 7, Issue 10, October 2026.Chronic wounds and pathological scarring remain inadequately addressed by conventional dressings. Craig and colleagues review 44 preclinical and clinical studies evaluating therapeutic electronic skin (e‐skin) and human–machine interfaces (HMIs), including electrical stimulation (ES), phototherapy, stimulation‐coupled drug delivery, and mechanical ...
Jasmine N. Craig +6 more
wiley +1 more source
Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine
Advanced Materials, Volume 38, Issue 51, 11 September 2026.A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen +5 more
wiley +1 more source
Analysis of Vibrational Performance of A Piezoelectric Micropump with Diffuse/Nozzle Microchannel
Nanotechnology and Precision Engineering, 2018 : Piezoelectric transducers of different external diameters are designed and fabricated and incorporated into micropumps. Through finite element analysis, it is shown that the volume efficiency of the micropump reaches its maximum value for the first ...
Yanfang Guan, Xiang Li
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An integrated planar magnetic micropump
Microelectronic Engineering, 2014 This paper presents an integrated magnetic micropump that uses in-plane compliance-based check valves and a magnetically actuated membrane. The device, which allows for simple fabrication and system integration with other functional elements, consists of two functional layers both fabricated from poly(dimethylsiloxane) (PDMS).
Junhui, Ni +3 more
openaire +3 more sources
Development of Diffuser/Nozzle Based Valveless Micropump
Journal of Fluid Science and Technology, 2008 A valveless micropump was realized with a diffuser/nozzle shaped channel and a variable volume actuator which produces an oscillating flow. One-way flow may be realized in the nozzle direction since the pressure loss in a nozzle channel is lower than ...
Seiichi TANAKA +2 more
doaj +1 more source
Research on Active Lubrication Based on Piezoelectric Micropump
ActuatorsThis paper mainly introduces the problem of active lubrication. At present, the technology of active lubrication for bearings in micro-space is not mature, and it is difficult to meet the requirements of micro-space lubrication. A piezoelectric micropump
Zhiyuan Zhang +5 more
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Sensors, 2009 In this study, a hybridized neuro-genetic optimization methodology realized by embedding numerical simulations trained artificial neural networks (ANN) into a genetic algorithm (GA) is used to optimize the flow rectification efficiency of the diffuser ...
Hing Wah Lee, Ishak H. Abdul Azid
doaj +1 more source