Development and assessment of a novel imaging software for optimizing the spray parameters on water-sensitive papers

Özlüoymak, Ömer Barış; Bolat, Ali

doi:10.1016/j.compag.2019.105104

Cited by 24 publications

(12 citation statements)

References 8 publications

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“…It is of guiding significance to understand how spray application parameters improve spray accuracy and efficiency, and make sprays more targeted and uniform. WSP is currently the most commonly used assessment method for the determination of agricultural spray parameters, such as droplet distribution, droplet density and coverage rate 50 . To compare the droplet particle size distribution of dicamba–KOH and dicamba gel spray droplets on the target, we arranged WSPs in the horizontal and vertical directions in the wind tunnel for simulated measurement.…”

Section: Resultsmentioning

confidence: 99%

Reducing pesticide spraying drift by folate/Zn²⁺ supramolecular hydrogels

Song

Zhu

Cao

et al. 2021

Pest Management Science

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BACKGROUND The purpose of this study was to use folic acid and zinc nitrate to construct a biocompatible supramolecular hydrogel loaded with the herbicide dicamba as an ultra‐low‐volume spray formulation. The drift potential of the hydrogel was studied by simulating the field environment in a wind tunnel. RESULTS The three‐dimensional network structure of the successfully prepared dicamba hydrogel system was observed using cryo‐scanning electron microscopy. A rheological study of the dicamba hydrogel showed that it has shear‐thinning and self‐healing properties. Using a laser particle size analyzer, it was shown that the droplet size of the dicamba gel (approximately 100 μm) was significantly larger than that of the control group water and dicamba–KOH droplets. Droplet collectors and water‐sensitive papers were arranged in the wind tunnel to evaluate the drift‐reduction performance of the dicamba gel. Compared with dicamba–KOH aqueous solution, dicamba gel has a good effect in reducing drift. CONCLUSION This hydrogel containing no organic solvents showed biocompatibility and biodegradability due to its natural and readily available raw materials. The main way in which hydrogels reduce drift is by increasing the droplet size and this is due to the three‐dimensional network structure inside the gel. This research provides a new strategy to reduce spray drift from the perspective of pesticide formulation, and also has prospects for the application of supramolecular hydrogels in agriculture.

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Section: Resultsmentioning

confidence: 99%

Reducing pesticide spraying drift by folate/Zn²⁺ supramolecular hydrogels

Song

Zhu

Cao

et al. 2021

Pest Management Science

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“…Experiments and numerical simulations were used to test a previously developed disinfection chamber [43]. The experimental tests were conducted with the objective of providing input information for the simulations and comparative analyses, applying flow measurement methods, thermography, and water sensitive paper (WSPs) [33,35,[51][52][53][54][55]. The simulations were carried out in two stages.…”

Section: Methodsmentioning

confidence: 99%

Numerical and experimental analyses for the improvement of surface instant decontamination technology through biocidal agent dispersion: Potential of application during pandemic

et al. 2021

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The transmission of SARS-CoV-2 through contact with contaminated surfaces or objects is an important form of transmissibility. Thus, in this study, we evaluated the performance of a disinfection chamber designed for instantaneous dispersion of the biocidal agent solution, in order to characterize a new device that can be used to protect individuals by reducing the transmissibility of the disease through contaminated surfaces. We proposed the necessary adjustments in the configuration to improve the dispersion on surfaces and the effectiveness of the developed equipment. Computational Fluid Dynamics (CFD) simulations of the present technology with a chamber having six nebulizer nozzles were performed and validated through qualitative and quantitative comparisons, and experimental tests were conducted using the method Water-Sensitive Paper (WSP), with an exposure to the biocidal agent for 10 and 30 s. After evaluation, a new passage procedure for the chamber with six nozzles and a new configuration of the disinfection chamber were proposed. In the chamber with six nozzles, a deficiency was identified in its central region, where the suspended droplet concentration was close to zero. However, with the new passage procedure, there was a significant increase in wettability of the surface. With the proposition of the chamber with 12 nozzles, the suspended droplet concentration in different regions increased, with an average increase of 266%. The experimental results of the new configuration proved that there was an increase in wettability at all times of exposure, and it was more significant for an exposure of 30 s. Additionally, even in different passage procedures, there were no significant differences in the results for an exposure of 10 s, thereby showing the effectiveness of the new configuration or improved spraying and wettability by the biocidal agent, as well as in minimizing the impact caused by human factor in the performance of the disinfection technology.

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“…Feature selection criterion uses entropy and the Gini function. The maximum depth of decision tree is value [2][3][4][5][6][7][8][9][10]; minimum number of samples to be divided into internal nodes is a value [2][3][4][5][6][7][8][9][10]. Use SelectBest to filter features, and use PolynomialFeatures to build matching features.…”

Section: 23mentioning

confidence: 99%

“…[3] used image acquisition system to collect images by simulating actual spray situation in field, preprocessed images with enhancement and segmentation, and proposed an improved separation algorithm based on finding separation points between sticky droplets. [4] designed a set of spray detection system with water-sensitive test paper based on computer vision acquisition software (Visual analogue scale，VAS), and achieved segmentation of sticky droplets by watershed segmentation but did not optimize over-segmentation problem of sticky. [5] discriminated adhesive droplets based on shape factor and area threshold of droplet contour, counted adhesive droplets with limit etching method and iterative open operation algorithm, and called it watershed algorithm of iterative open operation labeling for segmentation.…”

Section: Introductionmentioning

confidence: 99%

Droplets Image Segmentation Method Based on Machine learning and Watershed

He¹

2021

converter

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Watershed algorithm is used widely in segmentation of droplet overlapped spots on water-sensitive test paper. However, the phenomenon of over-segmentation, however, is often caused by noise and subtle changes of gray levels in images. To further improve segmentation accuracy of watershed algorithm, this paper proposes a cyclic iterative watershed segmentation algorithm. Through statistical analysis and logistic regression, machine learning models were classified to extract overlapping droplets on test papers. Loop iterative processing of seed points segments overlapping droplets with appropriate thresholds. Compared with fixed threshold watershed segmentation, this method has higher precision and efficiency for spray droplet evaluation in pesticide application.

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Development and assessment of a novel imaging software for optimizing the spray parameters on water-sensitive papers

Cited by 24 publications

References 8 publications

Reducing pesticide spraying drift by folate/Zn²⁺ supramolecular hydrogels

Reducing pesticide spraying drift by folate/Zn²⁺ supramolecular hydrogels

Numerical and experimental analyses for the improvement of surface instant decontamination technology through biocidal agent dispersion: Potential of application during pandemic

Droplets Image Segmentation Method Based on Machine learning and Watershed

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Development and assessment of a novel imaging software for optimizing the spray parameters on water-sensitive papers

Cited by 24 publications

References 8 publications

Reducing pesticide spraying drift by folate/Zn2+ supramolecular hydrogels

Reducing pesticide spraying drift by folate/Zn2+ supramolecular hydrogels

Numerical and experimental analyses for the improvement of surface instant decontamination technology through biocidal agent dispersion: Potential of application during pandemic

Droplets Image Segmentation Method Based on Machine learning and Watershed

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Reducing pesticide spraying drift by folate/Zn²⁺ supramolecular hydrogels

Reducing pesticide spraying drift by folate/Zn²⁺ supramolecular hydrogels