The shape and dimensions of a micromixer are key elements in the mixing process. Accurately quantifying the mixing efficiency enables the evaluation of the performance of a micromixer and the selection of the most suitable one for specific applications. In this paper, two methods are investigated to evaluate the mixing efficiency: a numerical model and an experimental model with a software image processing technique. Using two methods to calculate the mixing efficiency, in addition to corroborating the results and increasing their reliability, creates various possible approaches that can be selected depending on the circumstances, resources, amount of data to be processed and processing time. Image processing is an easy-to-implement tool, is applicable to different programming languages, is flexible, and provides a quick response that allows the calculation of the mixing efficiency using a process of filtering of images and quantifying the intensity of the color, which is associated with the percentage of mixing. The results showed high similarity between the two methods, with a difference ranging between 0 and 6% in all the evaluated points.
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http://dx.doi.org/10.3390/mi12091102 | DOI Listing |
Sci Rep
December 2024
Faculty of Mechanical Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, Iran.
Porous combustion has drawn vast attention over the last few decades leading to a variety of progressing applications particularly in industrial kitchens and household appliances that require time sensitive heating. The present study experimentally investigates the relationship between cooking duration and the thermal efficiency of a cooking pot heated on a porous burner providing a valuable insights into the effectiveness of the heating process in terms of both time and fuel consumption. To facilitate this investigation, a dedicated test bench is designed and constructed, equipped with thermometers and timer to effectively monitor the temporal/thermal behavior of the heating process.
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December 2024
Corrosion and Surface Engineering CSIR, National Metallurgical Laboratory, Jamshedpur, India.
Chloride-induced corrosion of steel rebars embedded in mortar was effectively controlled by blending of gallic acid in wet mixture. Mixing of optimized concentration of gallic acid (GA) inhibitor (0.125%) in mortars considerably increased the charge transfer resistance of embedded rebars (80.
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December 2024
Clinical Laboratory, Eye & ENT Hospital, Fudan University, Shanghai, 200031, China.
Endophthalmitis is a serious infectious eye disease that causes permanent vision loss. This study developed a method for rapid identification and drug resistance analysis of pathogens in vitreous humor. After short-term rapid culture, 30 Staphylococcus aureus isolates were enriched and purified from the vitreous humor using Fc-MBL@FeO, and then identified by MALDI-TOF MS.
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December 2024
Neurology Department, Shenzhen Bao'an District Songgang People's Hospital, 2 Shajiang Road, Songgang Jiedao, Bao'an District, Shenzhen, 518105, Guangdong Province, China.
Colorectal cancer significantly impacts patient quality of life and burdens healthcare systems globally. Fast-track surgery (FTS) aims to alleviate some of these impacts by expediting recovery and reduce the physiological stress associated with traditional surgical approaches. Despite the clinical efficiency of FTS, there exists a gap in the literature concerning patients' subjective experiences during the perioperative period.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
School of Metallurgy, Northeastern University, Shenyang 110819, China. Electronic address:
The synergistic activation of gaseous oxygen and surface lattice oxygen is essential for designing highly efficient catalysts to eliminate VOCs. Herein, an effective acid treatment was carried out to create more oxygen vacancies by modulating the electronic structure of MgMnO spinels and MgMnO mixed oxides. The acid-treated MgMnO exhibited outstanding catalytic performance, with the reaction rate of benzene rising by 8.
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