The measurement and model construction of complex permittivity of corn leaves at the main frequency points of L/S/C/X-band

Zeng, Jian; Li, Z; Tang, Zhili; Chen, Q; Bi, Haibo; Zhao, Liangbo

doi:10.1088/1755-1315/17/1/012055

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…A similar dependence was found for the empirical model of corn leaves, which describes the relationship between gravimetric moisture and complex permittivity reported by Zeng et al . ().…”

Section: Resultsmentioning

confidence: 97%

Influence of Temperature and Solvent Content on Electrical Properties of Sunflower Seed Cake

Шорсткий

Koh

Кошевой

2015

Journal of Food Processing and Preservation

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Here, we compare the impact of solvent content and temperature on dielectric and conductivity properties of sunflower seed cake. Two different experimental conditions were adopted in this study: permittivity-frequency isothermal spectroscopy of sunflower seed cakes at different temperatures ranging from 30 to 45C; and impedance-frequency spectroscopy of sunflower seed cakes with various solvent contents, ranging from 10 to 50 wt%. Experimental results revealed that increasing solvent content or temperature of sunflower seed cake from 10 to 50 wt% and 30 to 45C, the conductivity of samples increase by around eight times (from 3.52 × 10 −6 to 2.73 × 10 −5 S/m) and six times (from 1.35 × 10 −4 to 7.7 × 10 −4 S/m), respectively. The maximum conductivity can be reached by addition of 50 wt% of solvent to sunflower seed cake and raising the temperature to about 45C. Desired electrical properties of sunflower seed cake can be obtained by optimizing its solvent content and the processing temperature. PRACTICAL APPLICATIONSWith the dependence equations obtained from the measured data at various temperatures and solvent content, it is possible for the optimization of process parameters for food industry-dependent technologies, which rely on electrical properties of process materials, such as pulsed electric field treatment (PEF), ultrasonic and high-voltage electric discharge for assisted oil extraction.

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“…A similar dependence was found for the empirical model of corn leaves, which describes the relationship between gravimetric moisture and complex permittivity reported by Zeng et al . ().…”

Section: Resultsmentioning

confidence: 97%

Influence of Temperature and Solvent Content on Electrical Properties of Sunflower Seed Cake

Шорсткий

Koh

Кошевой

2015

Journal of Food Processing and Preservation

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“…In order to carry out these studies, dielectric properties of plants (branches, leaves, roots, fruit) shall be known. A lot of publications [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][28][29][30][31][32][33][34] are devoted to this problems and define dielectric properties of many agricultural culture, including fresh fruit and vegetables [17,18,27,35]. Thus, in [8], dielectric properties of corn and wheat leaves and stems were studied in 1 to 8.5 GHz bands depending on water content.…”

Section: Introductionmentioning

confidence: 99%

Determination of moisture content in vegetative cultivated plants by the method of millimeter wave spectroscopy for the tasks of increasing plant productivity

Kocherina

Parkhomenko

et al. 2022

Technical Physics

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Investigation of the genetic and breeding orientation have shown that it is inefficient to study the genotype-environment (GTE) interaction in plants at the molecular level, since the GTE effect disappears without a trace on it, being an emergent property that occurs when gene products interact with labile ones during the day, weeks, months by limiting environmental factors. Such studies should be carried out for higher system levels, namely, at the next stages of life organization --- organismal, population, ecological, phytocenotic. Since the most powerful "lever" for increasing plant productivity and yield, GTE, cannot be traced at the molecular level, knowledge of the molecular structures of the genome without knowledge of the dynamics of limiting environmental factors and the interaction of gene products with them does not contribute to the creation of high technologies for ecological genetic increase in productivity and yield plants. The accumulated world experience shows that rapid methods for measuring traits in plants, which give a holistic characterization of a complex dynamic system (this is what GTE is), can be created by interdisciplinary approaches, primarily using physical measurement methods. Within this approach, the article proposes to use the method of millimeter (MM) wave spectroscopy, which is very sensitive to changes in the water supply of plant tissues for the selection of drought-resistant plants. Keywords: plant productivity, principle of background traits, moisture content, millimeter wave spectroscopy.

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Measuring changes in radio-frequency dielectric properties of chicken meat during storage

Trabelsi

2017

Food Measure

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The measurement and model construction of complex permittivity of corn leaves at the main frequency points of L/S/C/X-band

Cited by 6 publications

References 9 publications

Influence of Temperature and Solvent Content on Electrical Properties of Sunflower Seed Cake

Influence of Temperature and Solvent Content on Electrical Properties of Sunflower Seed Cake

Determination of moisture content in vegetative cultivated plants by the method of millimeter wave spectroscopy for the tasks of increasing plant productivity

Measuring changes in radio-frequency dielectric properties of chicken meat during storage

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