Journal of Agricultural Engineering最新文献_第8页

Development and Performance Evaluation of a Low-cost Winnower for Dry Coffee Cherry 低成本咖啡樱桃干燥机的研制及性能评价

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2023-01-01 DOI: 10.52151/jae2022594.1787

{"title":"Development and Performance Evaluation of a Low-cost Winnower for Dry Coffee Cherry","authors":"","doi":"10.52151/jae2022594.1787","DOIUrl":"https://doi.org/10.52151/jae2022594.1787","url":null,"abstract":"The normal practice of coffee planters for cleaning dried cherry is time consuming, labourious, and totally depends on natural wind conditions. A low-cost power-operated dry cherry winnower was, therefore, developed at Central Coffee Research Institute, Karnataka. The dry cherry winnower consisted of a hopper, blower unit (exhaust fan), cherry outlet, and frame with an overall dimension of 1.28 (L) x 0.7 (W) x 1.63 (H) m. Arabica (Coffea arabica L) and robusta (Coffea canephora) cherry coffees were used for testing. During evaluation, cherry sample from main outlet, dried leaves and twigs from foreign materials outlet were collected to determine various parameters viz., percentage of blown cherry, cleaning efficiency, and output capacity. Air velocity of 4 m.s-1 was effective with lower percentage of blown cherry. Cleaning efficiency of arabica cherry was 99.85%, 99.73%, and 98.85% at 20, 25, and 30 kg.min-1 feed rate, respectively. Similarly, the cleaning efficiency of robusta cherry was 99.74%, 99.11%, and 98.53% at 20, 25, and 30 kg.min-1 feed rates. The output capacity ranged from 1,200 kg.h-1 to 1,807 kg.h-1 for arabica cherry, and 1,220 kg.h-1 to 1,821 kg.h-1 for robusta cherry. Higher cleaning efficiency of 99.85% and 99.74% were recorded for arabica and robusta cherry, respectively, at 20 kg.min-1 feed rate and 4 m.s-1 air velocity. The average power consumption was 0.375 kW.h. The cost of operation of the winnower was 105 `.h-1. The estimated cost of the winnower was `.16,000 per unit. The operational cost and time of winnowing could be reduced by 67% and 72%, respectively, by using the winnower when compared to conventional winnowing.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"44 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78747909","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}

引用次数: 0

Design, Development, and Performance Optimization of Farm Level Black Gram Dehuller 农场级黑克脱壳机的设计、开发及性能优化

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2023-01-01 DOI: 10.52151/jae2022593.1780

引用次数: 0

Development and Evaluation of Mobile Two-way Reversible Air Flow Flat-bed Paddy Dryer 移动式双向可逆气流平板水稻干燥机的研制与评价

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2023-01-01 DOI: 10.52151/jae2022593.1779

引用次数: 0

Influence of the initial setting of cement on the shear strength of rice husk ash stabilised soil 水泥初凝对稻壳灰稳定土抗剪强度的影响

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2022-12-30 DOI: 10.4081/jae.2022.1411

N. Nahar, Alexander Owino, Z. Hossain

{"title":"Influence of the initial setting of cement on the shear strength of rice husk ash stabilised soil","authors":"N. Nahar, Alexander Owino, Z. Hossain","doi":"10.4081/jae.2022.1411","DOIUrl":"https://doi.org/10.4081/jae.2022.1411","url":null,"abstract":"Determination of soil shear strength is essential for engineering construction. Using rice husk ash (RHA) with cement in the soil is a potential ground improvement technique that can reduce environmental problems and construction budget. In the present study, ten combinations of soil-RHA-cement were investigated to understand the effects of RHA with cement on the shear strength parameters of the soil. The admixtures were prepared by taking soil with 5%, 10%, 15% RHA, and 2%, 4%, and 6% cement. All specimens of soil-RHA-cement were tested after the initial setting of cement. The direct shear test was set up to compare different soil-RHA-cement mixtures under three normal stresses of 40, 60, and 80 kPa. The test results showed the difference in each mixture’s shear stress-shear displacement relationship, shear displacement- vertical displacement relationship, shear stress-normal stress relationship, shear strength, cohesion, and internal friction angle. According to the findings, shear strength improved as the cement ratio increased for the same amount of RHA in the soil, while dilatancy reduced compared to untreated soil. All soil-RHA-cement combinations had a stronger cohesiveness than untreated soil, but the angle of internal friction was lower. Under normal stress of 80 kPa, the soil with 5% RHA and 6% cement combination had the highest shear strength, corresponding to 62.9 kPa, and can be suggested for ground development.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"42 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91197832","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}

引用次数: 0

Calibrating structural modelling simulation parameters of a lightweight temporary shelter using a lateral load test in situ 利用原位横向荷载试验标定轻型临时遮蔽物的结构建模仿真参数

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2022-12-30 DOI: 10.4081/jae.2022.1418

F. Barreca, G. Cardinali, Viviana Tirella

{"title":"Calibrating structural modelling simulation parameters of a lightweight temporary shelter using a lateral load test in situ","authors":"F. Barreca, G. Cardinali, Viviana Tirella","doi":"10.4081/jae.2022.1418","DOIUrl":"https://doi.org/10.4081/jae.2022.1418","url":null,"abstract":"The importance of temporary housing facilities has been recently highlighted due to the occurrence of migrant flows, agricultural workers, and, more recently, the need for ‘social distancing’ strategies has become crucial to limiting the spread of the coronavirus 2019 (COVID-19) disease. They are built with different shapes, technology, structural and material systems. The structural system is often very simple because the module must be constructed in a short time by a few people. They have guaranteed the safety and well-being of the occupants and have to be designed in accordance with the rules and approved building codes. For these reasons, it is very important to design and verify the structural system with a high level of accuracy using a model and reliable structural analysis methods. Furthermore, it is essential to test the actual behaviour of the structure in use to validate the structural model simulated with the behaviour in situ. In this paper, we have illustrated a simple original test in situ to analyse the behaviour and survey the displacements of the shear wall prototype of a temporary home module in cork and timber loaded with a horizontal force. The comparison between the measured and the calculated displacements by means of finite element model software led to the evaluation of the accuracy of the structural model and the more realistic value of the connection’s metal stiffness. A specific numerical function was obtained using a rational regression interpolation that relates the connections’ stiffness value to the horizontal force. Knowing the actual value of the connection stiffness leads to a more reliable and safe design.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"33 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84380509","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}

引用次数: 1

Artificial intelligence to boost traceability systems for fraud prevention in the meat industry 人工智能将促进肉类行业防止欺诈的可追溯系统

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2022-12-30 DOI: 10.4081/jae.2022.1328

A. Biglia, P. Barge, C. Tortia, L. Comba, D. Ricauda Aimonino, P. Gay

{"title":"Artificial intelligence to boost traceability systems for fraud prevention in the meat industry","authors":"A. Biglia, P. Barge, C. Tortia, L. Comba, D. Ricauda Aimonino, P. Gay","doi":"10.4081/jae.2022.1328","DOIUrl":"https://doi.org/10.4081/jae.2022.1328","url":null,"abstract":"Traceability was introduced about twenty years ago to face the worldwide spread of food safety crises. Traceability data flow associated with each lot of food products during any production and/or delivery phases can also be used to guarantee product authenticity. For this purpose, it is necessary to protect the data from cyber intrusions and, at the same time, to guarantee the integrity of the bond between the physical product and the data. Price grading related to quality perceivable or credence attributes attracts criminals to attempt item substitution fraud. Improved track and trace technologies supported by artificial intelligence (AI) could highly enhance systems’ capability to detect authenticity violations by product substitution. This paper proposes an innovative method based on AI, to reinforce traceability systems in detecting possible counterfeiting by product substitution. It is an item-based mass balance method that analyses the congruity of the traceability data flows not by using explicit (even stochastic) rules but by exploiting the learning capabilities of a neural network. The system can then detect suspect information in a traceability data flow, alerting a possible profit-driven crime. The AI-based method was applied to a pork slaughtering and meat cutting chain case study.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"22 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86035617","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}

引用次数: 0

Lightweight sandy vegetation object detection algorithm based on attention mechanism 基于注意机制的轻型沙质植被目标检测算法

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2022-11-21 DOI: 10.4081/jae.2022.1471

Zhongwei Hua, Min Guan

引用次数: 0

Theoretical transmission analysis to optimize Gearbox for a 2.6 kW automatic pepper transplanter 2.6 kW辣椒自动插秧机变速箱优化的理论传动分析

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2022-11-03 DOI: 10.4081/jae.2022.1254

M. Islam, Md Zafar Iqbal, Mohammod Ali, M. Chowdhury, S. Kiraga, Md Shaha Nur Kabir, Dae-Hyun Lee, Jea-keun Woo, S. Chung

{"title":"Theoretical transmission analysis to optimize Gearbox for a 2.6 kW automatic pepper transplanter","authors":"M. Islam, Md Zafar Iqbal, Mohammod Ali, M. Chowdhury, S. Kiraga, Md Shaha Nur Kabir, Dae-Hyun Lee, Jea-keun Woo, S. Chung","doi":"10.4081/jae.2022.1254","DOIUrl":"https://doi.org/10.4081/jae.2022.1254","url":null,"abstract":"A gearbox is an essential component of an automatic transplanter to transmit engine power to the transplanter components. It is necessary to find the appropriate gearbox dimensions and materials for the pepper transplanter to minimize transmission losses. Therefore, the objectives of this research were to simulate the power transmission efficiency of the gearbox, and to determine a suitable number of stages, and materials and the dimensions of the spur gears. A 2.6 kW gasoline engine was considered as the prime source to power the entire transplanter. The available maximum length between the engine and transplanter subsystem was 422 mm. By considering design issues, a simulation model was created to determine the efficiency of the pepper transplanter gearbox, including various types of mechanical losses in the gearing system. Three different modules (1, 2, and 3 mm) and two materials were used to evaluate the effects on transmission. The analysis results indicated that the gearbox transmission efficiency levels of seven to twelve stages were in the range of 93.0–98.7%, whereas the eight-stage gearbox yielded the maximum efficiency of 98.7%, greater than our target efficiency of 98.0%. Therefore, an eight-stage gearbox was selected for power transmission to the components. The power transmission simulation results showed that the overall efficiency from engine to transplanting mechanism shaft varied in range of 95.2–95.9% owing to contact of the gear meshes. The analysis results also indicated that the 25CrMo4 carbon steel material with a 2-mm module gear was appropriate for the pepper transplanter. The analysis in this paper can be used as reference in the design of pepper transplanter gears and gearboxes with suitable material properties to provide the desired efficiency.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"36 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85064068","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}

引用次数: 1

Performance assessment of the TORO Company Neptune PC AS dripline TORO公司Neptune PC AS管线的性能评估

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2022-11-03 DOI: 10.4081/jae.2022.1463

A. Petroselli, Dario Romerio, P. Santelli, R. Mariotti, Silvano Di Giacinti, Ilaria Ceccarelli, C. Apollonio

{"title":"Performance assessment of the TORO Company Neptune PC AS dripline","authors":"A. Petroselli, Dario Romerio, P. Santelli, R. Mariotti, Silvano Di Giacinti, Ilaria Ceccarelli, C. Apollonio","doi":"10.4081/jae.2022.1463","DOIUrl":"https://doi.org/10.4081/jae.2022.1463","url":null,"abstract":"In order to design an efficient microirrigation system, a monitoring approach allowing quantifying the main variables affecting the level of uniformity should be pursued. In the present work, we assess the performances of a commercial dripline, the product “Neptune PC AS”, furnished by TORO Company, employing an ad hoc built experimental benchmark, in doing so defining the dripline acceptable working conditions. Neptune PC AS has been tested at different operating pressure heads (range 1.5 - 3.5 bar) and its performances have been evaluated employing a series of metrics (the emitter technological variation coefficient, the emitter uniformity and the application efficiency). The obtained results show that Neptune PC AS is characterized by a strong pressure-compensating effect on the emitters and by very good / excellent performances for all the investigated operating pressure heads. Moreover, Neptune PC AS is characterized by limited differences between the maximum and the minimum of the emitter flow rate, in case of operating pressure heads equal to 1.5 bar and 2.0 bar, while such differences tend to increase for higher operating pressures.","PeriodicalId":48507,"journal":{"name":"Journal of Agricultural Engineering","volume":"4 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80175799","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}

引用次数: 0

A leaf-mounted capacitance sensor for continuous monitoring of foliar transpiration and solar irradiance as an indicator of plant water status 一种安装在叶片上的电容传感器，用于连续监测叶片蒸腾和太阳辐照度，作为植物水分状况的指标

IF 1.8 4区农林科学

Journal of Agricultural Engineering Pub Date : 2022-11-03 DOI: 10.4081/jae.2022.1477

M. Thalheimer

引用次数: 0