Shanwen Zhang, Yongyuan Sun, Su Lu, Li Wang, Sian Liu, Zhongliu Wang, Min Dai, Jicheng Gao, Hong Miao
At present, ginkgo leave are still picked manually. A brush roller ginkgo leaf picker has been designed to improve harvesting efficiency and reduce losses caused by manual failure to pick leaves in time under large-scale planting areas. The ginkgo leaf picker is mainly composed of crawler chassis, gantry frame, brush roller picking parts, and collecting box. The kinematics of the brush roller is analyzed for the picking omission situation. An experimental platform for picking ginkgo biloba leaves was established. Three parameters, namely roller speed, moving speed, and roller inclination, were selected for optimization. Then the maximum net harvest rate and the minimum damage rate were achieved. The orthogonal test showed that when the roller speed was 130 rev/min, the moving speed was 0.25 m/s, and the roller inclination was 32°, the picking effect was the best, the net harvest rate was 93.32%, the damage rate was 1.42%, and the damage degree of the trunks was slight. The experiment proved that the brush-roller ginkgo leaf picker has a good picking effect, which can provide a reference for the optimization design of ginkgo leaf harvesting machinery under the dwarf dense planting mode.
{"title":"Design and experiment of brush-roller ginkgo leaf picker for the dwarf dense planting mode","authors":"Shanwen Zhang, Yongyuan Sun, Su Lu, Li Wang, Sian Liu, Zhongliu Wang, Min Dai, Jicheng Gao, Hong Miao","doi":"10.4081/jae.2023.1541","DOIUrl":"https://doi.org/10.4081/jae.2023.1541","url":null,"abstract":"At present, ginkgo leave are still picked manually. A brush roller ginkgo leaf picker has been designed to improve harvesting efficiency and reduce losses caused by manual failure to pick leaves in time under large-scale planting areas. The ginkgo leaf picker is mainly composed of crawler chassis, gantry frame, brush roller picking parts, and collecting box. The kinematics of the brush roller is analyzed for the picking omission situation. An experimental platform for picking ginkgo biloba leaves was established. Three parameters, namely roller speed, moving speed, and roller inclination, were selected for optimization. Then the maximum net harvest rate and the minimum damage rate were achieved. The orthogonal test showed that when the roller speed was 130 rev/min, the moving speed was 0.25 m/s, and the roller inclination was 32°, the picking effect was the best, the net harvest rate was 93.32%, the damage rate was 1.42%, and the damage degree of the trunks was slight. The experiment proved that the brush-roller ginkgo leaf picker has a good picking effect, which can provide a reference for the optimization design of ginkgo leaf harvesting machinery under the dwarf dense planting mode.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"4 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135216235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eliseo Roma, Pietro Catania, Mariangela Vallone, Santo Orlando
Remote and proximal sensing platforms at the service of precision olive growing are bringing new development possibilities to the sector. A proximal sensing platform is close to the vegetation, while a remote sensing platform, such as unmanned aerial vehicle (UAV), is more distant but has the advantage of rapidity to investigate plots. The study aims to compare multispectral and hyperspectral data acquired with remote and proximal sensing platforms. The comparison between the two sensors aims at understanding the different responses their use can provide on a crop, such as olive trees having a complex canopy. The multispectral data were acquired with a DJI multispectral camera mounted on the UAV Phantom 4. Hyperspectral acquisitions were carried out with a FieldSpec® HandHeld 2™ Spectroradiometer in the canopy portions exposed to South, East, West, and North. The multispectral images were processed with Geographic Information System software to extrapolate spectral information for each cardinal direction’s exposure. The three main Vegetation indices were used: normalized difference vegetation index (NDVI), normalized difference red-edge index (NDRE), and modified soil adjusted vegetation index (MSAVI). Multispectral data could describe the total variability of the whole plot differentiating each single plant status. Hyperspectral data were able to describe vegetation conditions more accurately; they appeared to be related to the cardinal exposure. MSAVI, NDVI, and NDRE showed correlation r =0.63**, 0.69**, and 0.74**, respectively, between multispectral and hyperspectral data. South and West exposures showed the best correlations with both platforms.
{"title":"Unmanned aerial vehicle and proximal sensing of vegetation indices in olive tree (<i>Olea europaea</i>)","authors":"Eliseo Roma, Pietro Catania, Mariangela Vallone, Santo Orlando","doi":"10.4081/jae.2023.1536","DOIUrl":"https://doi.org/10.4081/jae.2023.1536","url":null,"abstract":"Remote and proximal sensing platforms at the service of precision olive growing are bringing new development possibilities to the sector. A proximal sensing platform is close to the vegetation, while a remote sensing platform, such as unmanned aerial vehicle (UAV), is more distant but has the advantage of rapidity to investigate plots. The study aims to compare multispectral and hyperspectral data acquired with remote and proximal sensing platforms. The comparison between the two sensors aims at understanding the different responses their use can provide on a crop, such as olive trees having a complex canopy. The multispectral data were acquired with a DJI multispectral camera mounted on the UAV Phantom 4. Hyperspectral acquisitions were carried out with a FieldSpec® HandHeld 2™ Spectroradiometer in the canopy portions exposed to South, East, West, and North. The multispectral images were processed with Geographic Information System software to extrapolate spectral information for each cardinal direction’s exposure. The three main Vegetation indices were used: normalized difference vegetation index (NDVI), normalized difference red-edge index (NDRE), and modified soil adjusted vegetation index (MSAVI). Multispectral data could describe the total variability of the whole plot differentiating each single plant status. Hyperspectral data were able to describe vegetation conditions more accurately; they appeared to be related to the cardinal exposure. MSAVI, NDVI, and NDRE showed correlation r =0.63**, 0.69**, and 0.74**, respectively, between multispectral and hyperspectral data. South and West exposures showed the best correlations with both platforms.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136014731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The heat pump drying system was optimised for cornelian cherry-capia pepper leather production development using response surface methodology. The central composite design was used to optimise the process parameters in terms of drying time, coefficient of the performance of heat pump, coefficient of the performance of the whole system, specific moisture extracted ratio, energy consumption, drying rate and colour values. The optimal condition of independent variables was obtained as a cornelian cherry pulp concentration of 47.419% and drying temperature of 33.574°C with composite desirability of 0.846. Moreover, hydroxymethylfurfural (HMF) and effective moisture diffusivity (Deff) values of all runs were analysed. HMF was not determined in cornelian cherry-capia pepper leather. Deff values of cornelian cherry-capia pepper leather were between 1.026×10-9 - 1.532×10-9 m2s-1. The drying behaviour of cornelian cherry-capia pepper leather with optimal conditions acquired with the central composite design was evaluated with seven thin-layer drying models. The statistical parameters based on R2, root mean square of error and χ2 values were determined between 0.8267 to 0.9845, 0.004087 to 0.035626 and 0.000853 to 0.066247, respectively. Page and Modified Page models were assumed to represent the heat pump drying behaviour of the cornelian cherry-capia pepper leather in thin layers compared to the other models.
{"title":"Application of response surface methodology for optimisation of Cornelian cherry - Capia pepper leather dried in a heat pump drying system","authors":"Senanur Durgut Malçok, Azime Özkan Karabacak, Cüneyt Tunçkal, Canan Ece Tamer","doi":"10.4081/jae.2023.1538","DOIUrl":"https://doi.org/10.4081/jae.2023.1538","url":null,"abstract":"The heat pump drying system was optimised for cornelian cherry-capia pepper leather production development using response surface methodology. The central composite design was used to optimise the process parameters in terms of drying time, coefficient of the performance of heat pump, coefficient of the performance of the whole system, specific moisture extracted ratio, energy consumption, drying rate and colour values. The optimal condition of independent variables was obtained as a cornelian cherry pulp concentration of 47.419% and drying temperature of 33.574°C with composite desirability of 0.846. Moreover, hydroxymethylfurfural (HMF) and effective moisture diffusivity (Deff) values of all runs were analysed. HMF was not determined in cornelian cherry-capia pepper leather. Deff values of cornelian cherry-capia pepper leather were between 1.026×10-9 - 1.532×10-9 m2s-1. The drying behaviour of cornelian cherry-capia pepper leather with optimal conditions acquired with the central composite design was evaluated with seven thin-layer drying models. The statistical parameters based on R2, root mean square of error and χ2 values were determined between 0.8267 to 0.9845, 0.004087 to 0.035626 and 0.000853 to 0.066247, respectively. Page and Modified Page models were assumed to represent the heat pump drying behaviour of the cornelian cherry-capia pepper leather in thin layers compared to the other models.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136064017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An infrared-assisted heat pump drying (IR-HPD) was designed and used for drying of mushroom slices at three different infrared (IR) powers (50, 100, and 150 W) and a fixed drying temperature of 40°C and air velocity of 1 m/s. The changes in total phenolic content (TPC), total antioxidant capacity (TAC) and individual phenolic contents bioaccessibility, drying characteristics, and colour values of mushroom slices were investigated. IR-HPD provided 13.11 to 30.77% higher energy savings than HPD and reduced drying time between 9.48 and 26.72%. Page, Modified Page models were considered the best for predicting the thin layer drying behaviour of mushroom slices. The effective moisture diffusivity (Deff) value increased with IR power and ranged between 6.491x10-10 and 9.023x10-10 m2s-1. The contents of TPC, TAC, and individual phenolics in mushroom slices were significantly reduced (p<0.05) after drying. In vitro the bioaccessibility of phenolic compounds and TAC generally decreased, whereas TPC bioaccessibility was increased. Colour values were decreased except for a* value that increased after drying. Thermal imaging results showed that IR lamps increase the temperature of the products in the middle close to the lamp by approximately 1.5°C. In addition, thermal imaging gave a better understanding and visualised the effect of different power IR lamps on the temperature distribution of the products according to their distance from the lamp. As a result, drying mushrooms with a hybrid drying system combined with IR and heat pump dryer provided higher energy savings than HPD, reduced drying time, and maintained the physical and nutritional characteristics of mushrooms. Overall, the use of IR-HPD is an alternative tool that allows us to obtain high-quality dried mushrooms with good nutritional attributes and a high amount of bioaccessible polyphenols.
{"title":"Influence of a hybrid drying combined with infrared and heat pump dryer on drying characteristics, colour, thermal imaging and bioaccessibility of phenolics and antioxidant capacity of mushroom slices","authors":"Senanur Durgut Malçok, Azime Özkan Karabacak, Ertürk Bekar, Cüneyt Tunçkal, Canan Ece Tamer","doi":"10.4081/jae.2023.1537","DOIUrl":"https://doi.org/10.4081/jae.2023.1537","url":null,"abstract":"An infrared-assisted heat pump drying (IR-HPD) was designed and used for drying of mushroom slices at three different infrared (IR) powers (50, 100, and 150 W) and a fixed drying temperature of 40°C and air velocity of 1 m/s. The changes in total phenolic content (TPC), total antioxidant capacity (TAC) and individual phenolic contents bioaccessibility, drying characteristics, and colour values of mushroom slices were investigated. IR-HPD provided 13.11 to 30.77% higher energy savings than HPD and reduced drying time between 9.48 and 26.72%. Page, Modified Page models were considered the best for predicting the thin layer drying behaviour of mushroom slices. The effective moisture diffusivity (Deff) value increased with IR power and ranged between 6.491x10-10 and 9.023x10-10 m2s-1. The contents of TPC, TAC, and individual phenolics in mushroom slices were significantly reduced (p<0.05) after drying. In vitro the bioaccessibility of phenolic compounds and TAC generally decreased, whereas TPC bioaccessibility was increased. Colour values were decreased except for a* value that increased after drying. Thermal imaging results showed that IR lamps increase the temperature of the products in the middle close to the lamp by approximately 1.5°C. In addition, thermal imaging gave a better understanding and visualised the effect of different power IR lamps on the temperature distribution of the products according to their distance from the lamp. As a result, drying mushrooms with a hybrid drying system combined with IR and heat pump dryer provided higher energy savings than HPD, reduced drying time, and maintained the physical and nutritional characteristics of mushrooms. Overall, the use of IR-HPD is an alternative tool that allows us to obtain high-quality dried mushrooms with good nutritional attributes and a high amount of bioaccessible polyphenols.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136211309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study proposes a navigation system for the headland autonomous turning of a safflower picking robot. The proposed system includes binocular cameras, differential satellites, and inertial sensors. The method of extracting the headland boundary line combining the hue, saturation, and value-fixed threshold segmentation method and random sample consensus algorithm and planning the headland-turning trajectory of a robot based on the multiorder Bezier curve are used as control methods. In addition, a headland-turning tracking model of a safflower picking robot is designed, and a path-tracking control algorithm is developed. A field test verifies the performance of the designed headland-turning navigation system. The test results show that the accuracy of the judgment result regarding the existence of a headland is higher than 96%. In headland boundary detection, the angle deviation is less than 1.5˚, and the depth value error is less than 50 mm. The headland-turning path tracking test result shows that at a turning speed of 0.5 km/h, the average lateral deviation is 37 mm, and the turning time is 24.2 seconds. Compared to the 1 km/h, the turning speed of 0.5 km/h provides a better trajectory tracking effect, but the turning time is longer. The test results verify that this navigation system can accurately extract the headland boundary line and can successfully realise the headland-turning path tracking of a safflower picking robot. The results presented in this study can provide a useful reference for the autonomous navigation of a field robot.
{"title":"An efficient headland-turning navigation system for a safflower picking robot","authors":"Guomin Gao, Hui Guo, Jing Zhang, Zhenguo Zhang, Tianlun Wu, Hao Lu, Zhaoxin Qiu, Haiyang Chen, Zhen Lingxuan","doi":"10.4081/jae.2023.1539","DOIUrl":"https://doi.org/10.4081/jae.2023.1539","url":null,"abstract":"This study proposes a navigation system for the headland autonomous turning of a safflower picking robot. The proposed system includes binocular cameras, differential satellites, and inertial sensors. The method of extracting the headland boundary line combining the hue, saturation, and value-fixed threshold segmentation method and random sample consensus algorithm and planning the headland-turning trajectory of a robot based on the multiorder Bezier curve are used as control methods. In addition, a headland-turning tracking model of a safflower picking robot is designed, and a path-tracking control algorithm is developed. A field test verifies the performance of the designed headland-turning navigation system. The test results show that the accuracy of the judgment result regarding the existence of a headland is higher than 96%. In headland boundary detection, the angle deviation is less than 1.5˚, and the depth value error is less than 50 mm. The headland-turning path tracking test result shows that at a turning speed of 0.5 km/h, the average lateral deviation is 37 mm, and the turning time is 24.2 seconds. Compared to the 1 km/h, the turning speed of 0.5 km/h provides a better trajectory tracking effect, but the turning time is longer. The test results verify that this navigation system can accurately extract the headland boundary line and can successfully realise the headland-turning path tracking of a safflower picking robot. The results presented in this study can provide a useful reference for the autonomous navigation of a field robot.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136064012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aiming to address the problem of low mechanisation of filling and transporting citrus seedling pots in China, a new type of pot filling and transporting machine with 120 pots at a time was designed. Based on the study of flow characteristics of the seedling substrate, key components of the filling and transporting machines, such as the hopper component, transmission mechanism, flip mechanism, and steering mechanism, were designed. The effects of the opening width of the hopper, the rotating speed of the stirring shaft, the moisture content of the seedling substrate, and the forward speed of the transporting device on the filling effect of the seedling pot were studied by the experimental method, and the optimal operation parameters were determined. The prototype tests were repeated 3 times with the best combination of parameters. The test results indicate that the machine was in good condition for loading and unloading. The number of filling pots was 120 once, and the average filling time was 40 s. The average filling mass was 1.881 kg, 0.006 kg different from the predicted value of 1.887 kg, and the relative error was 0.32%. The coefficient of variation of the mass was 2.97%, which was 0.12% different from the predicted value of 2.85%, and the relative error was 4.0%. This designed machine can provide a reference for developing and optimising the citrus substrate filling and transporting machine.
{"title":"Design and operational parameters optimisation of a citrus substrate filling and transporting machine","authors":"Qinchao Xu, Shanjun Li, Haibing Pan, Qian Yang, Jian Zhang, Xuedong Lu, Cheng Shan","doi":"10.4081/jae.2023.1404","DOIUrl":"https://doi.org/10.4081/jae.2023.1404","url":null,"abstract":"Aiming to address the problem of low mechanisation of filling and transporting citrus seedling pots in China, a new type of pot filling and transporting machine with 120 pots at a time was designed. Based on the study of flow characteristics of the seedling substrate, key components of the filling and transporting machines, such as the hopper component, transmission mechanism, flip mechanism, and steering mechanism, were designed. The effects of the opening width of the hopper, the rotating speed of the stirring shaft, the moisture content of the seedling substrate, and the forward speed of the transporting device on the filling effect of the seedling pot were studied by the experimental method, and the optimal operation parameters were determined. The prototype tests were repeated 3 times with the best combination of parameters. The test results indicate that the machine was in good condition for loading and unloading. The number of filling pots was 120 once, and the average filling time was 40 s. The average filling mass was 1.881 kg, 0.006 kg different from the predicted value of 1.887 kg, and the relative error was 0.32%. The coefficient of variation of the mass was 2.97%, which was 0.12% different from the predicted value of 2.85%, and the relative error was 4.0%. This designed machine can provide a reference for developing and optimising the citrus substrate filling and transporting machine.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"250 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136352599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-09DOI: 10.52151/jae2023603.1817
None Hina N. Kadeval, None V. K. Patel
A study was undertaken on development of a modified perturb and observe algorithm for maximum power point tracking (MPPT) charge controller. This MPPT algorithm was developed in Matlab/Simulink environment, using three-state charging method for improved battery charging with higher efficiency. A buck topology was utilised as a DC-DC converter for charge controller implementation. The maximum power of the photovoltaic panel was tracked by a modified perturb and observe algorithm. The battery charge controller charged a lead-acid battery using a three- stage charging strategy including the bulk charge, constant voltage (absorption charge), and float charge stage. The performance analysis of Simulink model was carried out by maximum power point tracking performance, battery charging performance, and overall charge controller efficiency performance. The performance results indicated that the maximum power point tracking was capable to track to the maximum power of PV panel at any solar irradiance variation with power tracking efficiency up to 98 per cent. The efficiency of overall charge controller was up to 98.3%, which matched many high-end commercial charge controller product specifications.
{"title":"Maximum Power Point Tracking Charge Controller Using Modified Perturb and Observe Algorithm for Lead Acid Battery","authors":"None Hina N. Kadeval, None V. K. Patel","doi":"10.52151/jae2023603.1817","DOIUrl":"https://doi.org/10.52151/jae2023603.1817","url":null,"abstract":"A study was undertaken on development of a modified perturb and observe algorithm for maximum power point tracking (MPPT) charge controller. This MPPT algorithm was developed in Matlab/Simulink environment, using three-state charging method for improved battery charging with higher efficiency. A buck topology was utilised as a DC-DC converter for charge controller implementation. The maximum power of the photovoltaic panel was tracked by a modified perturb and observe algorithm. The battery charge controller charged a lead-acid battery using a three- stage charging strategy including the bulk charge, constant voltage (absorption charge), and float charge stage. The performance analysis of Simulink model was carried out by maximum power point tracking performance, battery charging performance, and overall charge controller efficiency performance. The performance results indicated that the maximum power point tracking was capable to track to the maximum power of PV panel at any solar irradiance variation with power tracking efficiency up to 98 per cent. The efficiency of overall charge controller was up to 98.3%, which matched many high-end commercial charge controller product specifications.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135093873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-09DOI: 10.52151/jae2023603.1815
None Pranjali D. Patil, None Nitin G. Patil, None Atul A. Atre
Accurate estimation of soil loss is essential for watershed managers and planners to identify the priority areas for soil and water conservation measures. This study was undertaken to estimate the average annual soil loss in the study area of Sangli district, Maharashtra by using the Revised Universal Soil Loss Equation (RUSLE) in conjunction with Geographic Information System (GIS) and Remote Sensing (RS) data. The five potential factors of RUSLE impacting soil erosion were estimated through remote sensing data, enabling a comprehensive and informed assessment of soil erosion. The results of the analysis revealed that the average annual soil loss from the study area varied between 0 t.ha-1.yr-1 and 202.10 t.ha-1.yr-1. Higher annual soil loss was estimated in the western part of the study area, which ranged from 15 t.ha-1.yr-1 to 25 t.ha-1.yr-1 as compared to other parts of the study area. The Sangali district, in general, can be categorised as a low erosion potential district (0-5 t.ha-1.yr-1). The generated information can be utilised for the implementation of soil and water management and conservation measures in the western part of Sangli district, where there is a large area under the forest and agricultural land.
准确估计土壤流失对流域管理者和规划者确定水土保持措施的优先领域至关重要。利用修订的通用土壤流失方程(RUSLE)，结合地理信息系统(GIS)和遥感(RS)数据，对马哈拉施特拉邦桑丽区研究区的年平均土壤流失量进行了估算。通过遥感数据估算RUSLE影响土壤侵蚀的5个潜在因子，实现对土壤侵蚀的全面、知情评估。分析结果表明，研究区年平均土壤流失量在0 t.ha-1之间。年-1和202.10。研究区西部的年土壤流失量较大，在15 t.ha-1之间。y -1到25 t.ha-1。与研究区域的其他部分相比。总的来说，桑加利地区可以被归类为低侵蚀潜力地区(0-5 t.ha-1. year -1)。生成的信息可用于桑丽区西部的水土管理和水土保持措施的实施，那里有大片的森林和农业用地。
{"title":"Estimation of Soil Loss using RUSLE, GIS, and Remote Sensing: A Case Study of Sangli District, Maharashtra","authors":"None Pranjali D. Patil, None Nitin G. Patil, None Atul A. Atre","doi":"10.52151/jae2023603.1815","DOIUrl":"https://doi.org/10.52151/jae2023603.1815","url":null,"abstract":"Accurate estimation of soil loss is essential for watershed managers and planners to identify the priority areas for soil and water conservation measures. This study was undertaken to estimate the average annual soil loss in the study area of Sangli district, Maharashtra by using the Revised Universal Soil Loss Equation (RUSLE) in conjunction with Geographic Information System (GIS) and Remote Sensing (RS) data. The five potential factors of RUSLE impacting soil erosion were estimated through remote sensing data, enabling a comprehensive and informed assessment of soil erosion. The results of the analysis revealed that the average annual soil loss from the study area varied between 0 t.ha-1.yr-1 and 202.10 t.ha-1.yr-1. Higher annual soil loss was estimated in the western part of the study area, which ranged from 15 t.ha-1.yr-1 to 25 t.ha-1.yr-1 as compared to other parts of the study area. The Sangali district, in general, can be categorised as a low erosion potential district (0-5 t.ha-1.yr-1). The generated information can be utilised for the implementation of soil and water management and conservation measures in the western part of Sangli district, where there is a large area under the forest and agricultural land.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135094632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-09DOI: 10.52151/jae2023603.1810
None N. R. Gatkal, None S. M. Nalawade, None P. P. Pawase
Maize shelling is an important post-harvest operation to separate the grains from its cob. Traditional methods involve rubbing maize cobs against each other, rubbing on stones, or hand method. These methods are labour-intensive, time-consuming, and drudgery-prone. Migration from rural population to cities for better livelihoods has creates labour shortage in rural areas during the peak period of maize shelling. A study was undertaken to design, develop, and evaluate the performance of an electric motor powered maize sheller. It consisted of a frame, feeding chute, cylinder, outer cover, rotor shaft, electric motor, belt, and outlet. The developed maize sheller was operated at three cylinder speeds (150, 200, 300 rpm) and three cob moisture contents [12, 14, 16% (w. b.)]. Highest and lowest shelling rates were 96.9 kg.h-1and 90.92 kg.h-1at cylinder speed and moisture content of 300 rpm, 12% (w. b.) and 150 rpm, 16% (w. b.). Shelling efficiency was 98.60% at 300 rpm, 12% (w. b.) and 89.00% at 150 rpm, 16% (w. b.). Grain damage was 8.37% at 300 rpm, 16% (w. b.) and 3.1% at 150 rpm, 12% (w. b.). Shelling rate and shelling efficiency decreased with increase in moisture content, but grain damage increased. Shelling rate, shelling efficiency, and grain damage also increased with increase in cylinder speed from 150 rpm to 300 rpm. Sheller cylinder speed of 150 rpm and grain moisture content of 12% (w. b.) gave the best shelling rate, shelling efficiency, and minimum grain damage of 92.07 kg.h-1, 91.40%, and 3.10 per cent. The payback period of the maize sheller was 1.13 year, while the benefit-cost ratio was 1.01.
玉米脱壳是一项重要的收获后操作，用于将玉米籽粒与玉米芯分离。传统的方法包括相互摩擦玉米棒，在石头上摩擦，或用手摩擦。这些方法都是劳动密集型的，耗时的，而且很容易累赘。在玉米脱壳高峰期，农村人口向城市迁移以改善生计造成农村地区劳动力短缺。进行了一项研究，以设计、开发和评估电动玉米脱壳机的性能。它由机架、给料槽、气缸、外盖、转子轴、电动机、皮带和出料口组成。研制的玉米脱壳机在三种滚筒转速(150、200、300转/分)和三种玉米芯含水量[12、14、16% (w / b)]下运行。在筒速为300转/分12% (w / b)和150转/分16% (w / b)的条件下，脱壳率最高为96.9 kg.h-1，最低为90.92 kg.h-1。脱壳效率在300转/分，12% (w / b)时为98.60%;在150转/分，16% (w / b)时为89.00%。300转时，籽粒损伤率为8.37%，转速为16%;150转时，籽粒损伤率为3.1%，转速为12%。随含水量的增加，籽粒脱壳率和脱壳效率降低，籽粒损伤增加。脱壳率、脱壳效率和籽粒损伤也随着滚筒转速从150转/分增加到300转/分而增加。脱壳滚筒转速为150转/分，籽粒含水量为12% (w / b)时，脱壳率、脱壳效率和籽粒损害最小，分别为92.07 kg.h-1、91.40%和3.10%。该脱壳机的投资回收期为1.13年，效益成本比为1.01。
{"title":"Design of a Motorised Maize Sheller and Optimisation of its Operating Parameters","authors":"None N. R. Gatkal, None S. M. Nalawade, None P. P. Pawase","doi":"10.52151/jae2023603.1810","DOIUrl":"https://doi.org/10.52151/jae2023603.1810","url":null,"abstract":"Maize shelling is an important post-harvest operation to separate the grains from its cob. Traditional methods involve rubbing maize cobs against each other, rubbing on stones, or hand method. These methods are labour-intensive, time-consuming, and drudgery-prone. Migration from rural population to cities for better livelihoods has creates labour shortage in rural areas during the peak period of maize shelling. A study was undertaken to design, develop, and evaluate the performance of an electric motor powered maize sheller. It consisted of a frame, feeding chute, cylinder, outer cover, rotor shaft, electric motor, belt, and outlet. The developed maize sheller was operated at three cylinder speeds (150, 200, 300 rpm) and three cob moisture contents [12, 14, 16% (w. b.)]. Highest and lowest shelling rates were 96.9 kg.h-1and 90.92 kg.h-1at cylinder speed and moisture content of 300 rpm, 12% (w. b.) and 150 rpm, 16% (w. b.). Shelling efficiency was 98.60% at 300 rpm, 12% (w. b.) and 89.00% at 150 rpm, 16% (w. b.). Grain damage was 8.37% at 300 rpm, 16% (w. b.) and 3.1% at 150 rpm, 12% (w. b.). Shelling rate and shelling efficiency decreased with increase in moisture content, but grain damage increased. Shelling rate, shelling efficiency, and grain damage also increased with increase in cylinder speed from 150 rpm to 300 rpm. Sheller cylinder speed of 150 rpm and grain moisture content of 12% (w. b.) gave the best shelling rate, shelling efficiency, and minimum grain damage of 92.07 kg.h-1, 91.40%, and 3.10 per cent. The payback period of the maize sheller was 1.13 year, while the benefit-cost ratio was 1.01.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135093584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-09DOI: 10.52151/jae2023603.1812
None P. V. K. Jagannadha Rao, None M. Madhava, None P. Sreedeviq, None K. Kiranmayi, None M. Bharatha Lakshmi
A solid-wall basket-type centrifugal clarifier of 500 l.h-1 capacity having a rotational speed of 1,200 rpm was used for the mechanical clarification of sugarcane juice. The effect of polypropylene filter pore size (5, 10, 15 μm), centrifugation time (5, 10, 15 min), and temperature of juice (60, 70, 80 ºC) on sugarcane juice clarification was studied using Box-Behnken design. Clarification efficiency ranged between 50.8% and 82.5%, whereas optical density (OD) and percent transmittance (%T) varied from 1.95 to 1.05 and 2 to 8, respectively. Optimisation of the process parameters suggested a polypropylene filter pore size of 10 μm, centrifugation time of 15 min, and juice temperature of 80 ºC, contributing to a solution of 82.5% clarification efficiency (ƞ). Jaggery prepared from clarified sugarcane juice appeared brighter in colour (L* value 58.1), and contained less amount of insoluble solids (0.75%) as compared to jaggery prepared from unclarified juice. No significant changes in sucrose and reducing sugar contents in jaggery were observed with clarification.
{"title":"Optimisation of Process Parameters for Centrifugal Clarification of Sugarcane Juice for Quality Jaggery","authors":"None P. V. K. Jagannadha Rao, None M. Madhava, None P. Sreedeviq, None K. Kiranmayi, None M. Bharatha Lakshmi","doi":"10.52151/jae2023603.1812","DOIUrl":"https://doi.org/10.52151/jae2023603.1812","url":null,"abstract":"A solid-wall basket-type centrifugal clarifier of 500 l.h-1 capacity having a rotational speed of 1,200 rpm was used for the mechanical clarification of sugarcane juice. The effect of polypropylene filter pore size (5, 10, 15 μm), centrifugation time (5, 10, 15 min), and temperature of juice (60, 70, 80 ºC) on sugarcane juice clarification was studied using Box-Behnken design. Clarification efficiency ranged between 50.8% and 82.5%, whereas optical density (OD) and percent transmittance (%T) varied from 1.95 to 1.05 and 2 to 8, respectively. Optimisation of the process parameters suggested a polypropylene filter pore size of 10 μm, centrifugation time of 15 min, and juice temperature of 80 ºC, contributing to a solution of 82.5% clarification efficiency (ƞ). Jaggery prepared from clarified sugarcane juice appeared brighter in colour (L* value 58.1), and contained less amount of insoluble solids (0.75%) as compared to jaggery prepared from unclarified juice. No significant changes in sucrose and reducing sugar contents in jaggery were observed with clarification.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135094007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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