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Engenharia Agricola最新文献

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OPERATIONAL PERFORMANCE OF AN AGRICULTURAL TRACTOR AS A FUNCTION OF MIXTURE PROPORTIONS AND TYPE OF BIODIESEL 混合比例和生物柴油类型对农用拖拉机运行性能的影响
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42nepe20220072/2022
Marcos S. Tavares, F. T. Camara, A. Lopes, A. Pinto
{"title":"OPERATIONAL PERFORMANCE OF AN AGRICULTURAL TRACTOR AS A FUNCTION OF MIXTURE PROPORTIONS AND TYPE OF BIODIESEL","authors":"Marcos S. Tavares, F. T. Camara, A. Lopes, A. Pinto","doi":"10.1590/1809-4430-eng.agric.v42nepe20220072/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42nepe20220072/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67256578","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 NEURAL NETWORKS TO PREDICT EFFICIENCIES IN SEMI-MECHANIZED BEAN (Phaseolus vulgaris L.) HARVEST 人工神经网络预测半机械化菜豆生产效率的研究收获
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42nepe20210097/2022
C. M. A. D. Souza, Marcondes de S. Padilha, S. Arcoverde, L. Z. L. Rafull
{"title":"ARTIFICIAL NEURAL NETWORKS TO PREDICT EFFICIENCIES IN SEMI-MECHANIZED BEAN (Phaseolus vulgaris L.) HARVEST","authors":"C. M. A. D. Souza, Marcondes de S. Padilha, S. Arcoverde, L. Z. L. Rafull","doi":"10.1590/1809-4430-eng.agric.v42nepe20210097/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42nepe20210097/2022","url":null,"abstract":"Bean is among the most consumed and produced crops in Brazil. Given the high demand for food, the search for technologies and controllers to increase the efficiency of agricultural systems has grown. This study aimed to model artificial neural network (ANN) architectures to predict mechanical efficiencies in the semi-mechanized bean harvest. We used a multilayer perceptron network with three inputs (harvest moisture, threshing rotor rotation, and feed rate), two hidden layers of neurons, and one output (efficiency). We evaluated the efficiency in the header, separation on the threshing rotor, cleaning of sieves, and the total efficiency of the machine. ANN was processed by a scripted algorithm to model the network, alternate the number of neurons in hidden layers, as well as to select, test, and validate ANN with less error. ANN was validated by comparing its results with the experimental data. The architectures selected to predict efficiencies were 3-8-15-1 for the header, 3-9-7-1 for the thresher and separation, 3-5-11-1 for cleaning, and 3-15-10-1 for the total operation. ANN predicted satisfactory results with errors below 1% and a high hit rate, thus being valid to predict the efficiencies in the semi-mechanized bean harvest.","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67256608","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: 2
DESIGN AND EXPERIMENT OF A CLAMP-HOLDING PRECISION MAIZE-SEED-METERING DEVICE 一种夹紧式玉米精密测种装置的设计与试验
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n6e20220049/2022
Xuejun Zhang, Jinpeng Cheng, Zenglu Shi, Yunhe Zhang, Meijing Wang
{"title":"DESIGN AND EXPERIMENT OF A CLAMP-HOLDING PRECISION MAIZE-SEED-METERING DEVICE","authors":"Xuejun Zhang, Jinpeng Cheng, Zenglu Shi, Yunhe Zhang, Meijing Wang","doi":"10.1590/1809-4430-eng.agric.v42n6e20220049/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n6e20220049/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67256885","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
SURFACE MOISTURE INDEX BY RADIOMETRIC MEASUREMENTS AND ORBITAL DATA 地表水分指数的辐射测量和轨道数据
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n2e20210043/2022
L. W. Schirmbeck, D. Fontana, J. Schirmbeck, G. A. Dalmago, José Mauro Carneiro Fernandes
{"title":"SURFACE MOISTURE INDEX BY RADIOMETRIC MEASUREMENTS AND ORBITAL DATA","authors":"L. W. Schirmbeck, D. Fontana, J. Schirmbeck, G. A. Dalmago, José Mauro Carneiro Fernandes","doi":"10.1590/1809-4430-eng.agric.v42n2e20210043/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n2e20210043/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67255232","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
SPATIAL VARIABILITY OF NOISE GENERATED BY A SELF-PROPELLED COFFEE HARVESTER IN AN OPEN AREA 开放式区域中自行式咖啡收割机产生的噪声的空间变异性
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n4e20210056/2022
J. A. R. D. Silva, R. Manzione, G. G. D. Oliveira Júnior, Adriano B. da Silva, F. Putti
{"title":"SPATIAL VARIABILITY OF NOISE GENERATED BY A SELF-PROPELLED COFFEE HARVESTER IN AN OPEN AREA","authors":"J. A. R. D. Silva, R. Manzione, G. G. D. Oliveira Júnior, Adriano B. da Silva, F. Putti","doi":"10.1590/1809-4430-eng.agric.v42n4e20210056/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n4e20210056/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67255901","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
PARAMETER OPTIMIZATION OF WHOLE-STRAW RETURNING DEVICE BASED ON THE BP NEURAL NETWORK 基于bp神经网络的全秸秆还田装置参数优化
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n4e20210208/2022
Zhigui Dong, Qingfeng Song, W. Zhang
{"title":"PARAMETER OPTIMIZATION OF WHOLE-STRAW RETURNING DEVICE BASED ON THE BP NEURAL NETWORK","authors":"Zhigui Dong, Qingfeng Song, W. Zhang","doi":"10.1590/1809-4430-eng.agric.v42n4e20210208/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n4e20210208/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67256294","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: 2
Experimental and influencing factors of corn stalk pulling force 玉米秸秆牵引力试验及影响因素
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n5e20210219/2022
Dapeng Li, Haiqing Tian, Yue Sheng, Xiang Ren, Jiancheng Zhou
{"title":"Experimental and influencing factors of corn stalk pulling force","authors":"Dapeng Li, Haiqing Tian, Yue Sheng, Xiang Ren, Jiancheng Zhou","doi":"10.1590/1809-4430-eng.agric.v42n5e20210219/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n5e20210219/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67256395","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
LOW-COST ELECTRO-MECHANICAL PRESS FOR DETERMINING PRE-CONSOLIDATION PRESSURE 用于测定预固结压力的低成本机电压力机
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n3e20210227/2022
Thiago F. Duarte, Edson Godoy, T. D. Silva, E. M. Bonfim-Silva, Douglas V. R. dos Santos
{"title":"LOW-COST ELECTRO-MECHANICAL PRESS FOR DETERMINING PRE-CONSOLIDATION PRESSURE","authors":"Thiago F. Duarte, Edson Godoy, T. D. Silva, E. M. Bonfim-Silva, Douglas V. R. dos Santos","doi":"10.1590/1809-4430-eng.agric.v42n3e20210227/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n3e20210227/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67255547","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
COFFEE DRYER WITH DEHYDRATED AIR: A TECHNICAL AND ECONOMIC VIABILITY ANALYSIS 咖啡干燥机与脱水空气:技术和经济可行性分析
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n4e20210003/2022
E. A. Konopatzki, D. Christ, S. Coelho, A. Demito, I. Werncke, R. G. D. M. Camicia
{"title":"COFFEE DRYER WITH DEHYDRATED AIR: A TECHNICAL AND ECONOMIC VIABILITY ANALYSIS","authors":"E. A. Konopatzki, D. Christ, S. Coelho, A. Demito, I. Werncke, R. G. D. M. Camicia","doi":"10.1590/1809-4430-eng.agric.v42n4e20210003/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n4e20210003/2022","url":null,"abstract":"The defects that drying in concrete yards impose on coffee beans and the search for gourmet coffee production have prompted the emergence of new drying technologies. This work verified the technical and economic feasibility of drying coffee with dehumidified air with a refrigerating capacity of 422,908.7 J s -1 , compatible with static capacity dryers equal to 75 m 3 . Considering the sale price of coffee, the cost of electric energy acquisition, the monthly interest rate and maintenance time, expenses that are equivalent to the depreciation of the concrete yard, a central compound rotational design was considered with 28 tests for the feasibility analysis, including the internal rate of return, net present value and the return on investment. The results showed that in the electric drying units, the dried coffee presents fewer broken and defective beans and has higher retention in a N o . 17 sieve. With a higher beverage quality and a price 12.11% higher, drying with dehydrated air showed a PBD of 2.27 years and a return of US$ 2.49 million. The optimisation results were 98.98% desirable. It was concluded that it is economically feasible to dry coffee with dehydrated air and without using a concrete yard.","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67255764","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
SIMULATION OPTIMIZATION AND EXPERIMENTAL STUDY OF THE AIR DISTRIBUTION CHAMBER STRUCTURE OF STRAW-BASED NUTRIENT SEEDING-GROWING BOWL TRAY MICROWAVE–HOT-AIR COUPLING DRYERS 秸秆营养育苗碗盘式微波热风耦合干燥机配风室结构的仿真优化与实验研究
IF 1 4区 农林科学
Engenharia Agricola Pub Date : 2022-01-01 DOI: 10.1590/1809-4430-eng.agric.v42n2e20210226/2022
Haiyuan Li, Y. Hu, Lian Qi, Haiming Yu
{"title":"SIMULATION OPTIMIZATION AND EXPERIMENTAL STUDY OF THE AIR DISTRIBUTION CHAMBER STRUCTURE OF STRAW-BASED NUTRIENT SEEDING-GROWING BOWL TRAY MICROWAVE–HOT-AIR COUPLING DRYERS","authors":"Haiyuan Li, Y. Hu, Lian Qi, Haiming Yu","doi":"10.1590/1809-4430-eng.agric.v42n2e20210226/2022","DOIUrl":"https://doi.org/10.1590/1809-4430-eng.agric.v42n2e20210226/2022","url":null,"abstract":"","PeriodicalId":49078,"journal":{"name":"Engenharia Agricola","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67255801","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
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