Influence of Multi‐Pin Anode Arrangement on Electric Field Distribution Characteristics and Its Application on Microgreen Seed Treatment

Tanakaran, Yottana; Matra, Khanit

doi:10.1002/pssa.202000240

Cited by 3 publications

(1 citation statement)

References 25 publications

(59 reference statements)

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“…From figure 4(c) we can see that when using an ordinary fixed multi-pin plasma generator to treat irregularly shaped objects, it is difficult to provide a large-area uniform plasma. Therefore, inevitably there will be some areas that cannot be treated [15,25,26]. With configuration H, when treated by plasma for 1 min, 2 min and 3 min, the concentration of bacteria is reduced to 10 8 CFU/ml, 10 7 CFU/ml and ∼10 5 CFU/ml, respectively.…”

Section: Sterilizationmentioning

confidence: 99%

A novel flexible plasma array for large-area uniform treatment of an irregular surface

LIU¹,

Qi²,

Zhou³

et al. 2022

Plasma Sci. Technol.

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In this work, we demonstrate a flexible multi-pin plasma generator with movable electrodes, which can change the shape of the electrode array freely, and then provide a large-area uniform plasma for the treatment of surfaces of different shapes. Discharge characteristics including U–I waveforms and discharge images and sterilization performance under three different electrode configurations (flat–flat, flat–curve, curve–curve) are investigated. Very similar results are acquired between the flat–flat configuration and the curve–curve configuration, which is much better than that under flat–curve configuration. This flexible multi-pin plasma generator offers a simple method to treat different irregularly shaped surfaces uniformly with a single device. Moreover, this device provides a foundation for developing a self-adaption large-scale uniform plasma generator by further introducing automatic adjustment of the position of every electrode driven by motors with discharge current feedback in the following study. Thus it will promote the applications of atmospheric-pressure cold plasmas significantly.

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Section: Sterilizationmentioning

confidence: 99%

A novel flexible plasma array for large-area uniform treatment of an irregular surface

LIU¹,

Qi²,

Zhou³

et al. 2022

Plasma Sci. Technol.

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Study on the plasma characteristics in a needle-plate dielectric barrier discharge with a rotating dielectric plate

Jiang

Peng

et al. 2023

Journal of Applied Physics

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The enhancement of plasma generation in atmospheric pressure dielectric barrier discharge (DBD) is gaining increasing interest for various plasma applications. In this paper, the effect of surface charges moving with the rotating dielectric plate on improving the generation of streamer channels is investigated by a statistical analysis of electrical measurements, optical diagnostics, and numerical simulation in a needle-plate DBD device with a rotating dielectric plate. Results suggest that rotating the dielectric plate can improve the spatiotemporal distribution of streamer channels by inducing a bending of the streamer channels and an increase in the number of discharges. Statistical results show that the number of current pulse and discharge energy are increased by 20% and 47%, respectively, at the rotating speed of 160 rps (revolution per second). Based on the interaction between the applied electric field and the electric field induced by surface charges, a formula is proposed to govern the effect of rotating the dielectric plate on the discharge energy and streamer bending. To further understand the mechanism of the influence of rotating the dielectric plate on plasma properties, a 2D fluid model is implemented, and the reduced electric field and streamer propagation are analyzed. Results show that the effective transfer and reuse of surface charges play an important role in the enhancement of plasma generation.

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Microgreens for Home, Commercial, and Space Farming: A Comprehensive Update of the Most Recent Developments

Teng

Luo

Pearlstein

et al. 2023

Annu. Rev. Food Sci. Technol.

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Microgreens are edible young plants that have recently attracted interest because of their color and flavor diversity, phytonutrient abundance, short growth cycle, and minimal space and nutrient requirements. They can be cultivated in a variety of systems from simple home gardens to sophisticated vertical farms with automated irrigation, fertilizer delivery, and lighting controls. Microgreens have also attracted attention from space agencies hoping that their sensory qualities can contribute to the diet of astronauts in microgravity and their cultivation might help maintain crew physical and psychological health on long-duration spaceflight missions. However, many technical challenges and data gaps for growing microgreens both on and off Earth remain unaddressed. This review summarizes recent studies on multiple aspects of microgreens, including nutritional and socioeconomic benefits, cultivation systems, operative conditions, innovative treatments, autonomous facilities, and potential space applications. It also provides the authors’ perspectives on the challenges to stimulating more extensive interdisciplinary research. Expected final online publication date for the Annual Review of Food Science and Technology, Volume 14 is March 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Influence of Multi‐Pin Anode Arrangement on Electric Field Distribution Characteristics and Its Application on Microgreen Seed Treatment

Cited by 3 publications

References 25 publications

A novel flexible plasma array for large-area uniform treatment of an irregular surface

A novel flexible plasma array for large-area uniform treatment of an irregular surface

Study on the plasma characteristics in a needle-plate dielectric barrier discharge with a rotating dielectric plate

Microgreens for Home, Commercial, and Space Farming: A Comprehensive Update of the Most Recent Developments

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