Acta Technologica Agriculturae最新文献_第4页

A Real-Time Olive Fruit Detection for Harvesting Robot Based on YOLO Algorithms 基于YOLO算法的采收机器人橄榄果实时检测

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-08-18 DOI: 10.2478/ata-2023-0017

A. Aljaafreh, E. Elzagzoug, Jafar Abukhait, A. Soliman, Saqer S. Alja’afreh, Aparajithan Sivanathan, James Hughes

{"title":"A Real-Time Olive Fruit Detection for Harvesting Robot Based on YOLO Algorithms","authors":"A. Aljaafreh, E. Elzagzoug, Jafar Abukhait, A. Soliman, Saqer S. Alja’afreh, Aparajithan Sivanathan, James Hughes","doi":"10.2478/ata-2023-0017","DOIUrl":"https://doi.org/10.2478/ata-2023-0017","url":null,"abstract":"Abstract Deep neural network models have become powerful tools of machine learning and artificial intelligence. They can approximate functions and dynamics by learning from examples. This paper reviews the state-of-art of deep learning-based object detection frameworks that are used for fruit detection in general and for olive fruit in particular. A dataset of olive fruit on the tree is built to train and evaluate deep models. The ultimate goal of this work is the capability of on-edge real-time olive fruit detection on the tree from digital videos. Recent work in deep neural networks has led to the development of a state-of-the-art object detector termed You Only Look Once version five (YOLOv5). This paper builds a dataset of 1.2 K source images of olive fruit on the tree and evaluates the latest object detection algorithms focusing on variants of YOLOv5 and YOLOR. The results of the YOLOv5 models show that the YOLOv5 new network models are able to extract rich olive features from images and detect the olive fruit with a high precision of higher than 0.75 mAP_0.5. YOLOv5s performs better for real-time olive fruit detection on the tree over other YOLOv5 variants and YOLOR.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42931568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable Biomethane Production from Sewage Sludge and Wheat Straw Co-Digestion in the Presence of Polypyrrole Fe3O4 Nanoparticles and Alkaline Pretreatment: Life Cycle Assessment Point of View 从生命周期评估的角度看聚吡咯Fe3O4纳米粒子存在下从污泥和麦草共消化和碱性预处理中可持续生产生物甲烷

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-08-18 DOI: 10.2478/ata-2023-0018

Gholamhossein Jafari, S. Ardabili, R. Pourdarbani, B. Abbaszadeh, Mario Hernández-Hernández

{"title":"Sustainable Biomethane Production from Sewage Sludge and Wheat Straw Co-Digestion in the Presence of Polypyrrole Fe3O4 Nanoparticles and Alkaline Pretreatment: Life Cycle Assessment Point of View","authors":"Gholamhossein Jafari, S. Ardabili, R. Pourdarbani, B. Abbaszadeh, Mario Hernández-Hernández","doi":"10.2478/ata-2023-0018","DOIUrl":"https://doi.org/10.2478/ata-2023-0018","url":null,"abstract":"Abstract Biogas production from sewage sludge can be valued in different scenarios of energy usage such as the electricity, heating, and transportation system. Improving the energy production value is the main reason for using different ways such as alkaline pretreatment and nanoparticles (NPs). This investigation uses life cycle assessment (LCA) for evaluating the biomethane production from co-digestion of sewage sludge and wheat straw in the presence of polypyrrole Fe3O4 nanoparticles (0, 20, 40, 60, and 80 mg) and NaOH alkaline pretreatment (0 and 5 mg) at mesophilic anaerobic digestion along with optimization for sustainable biomethane production. Results indicated that retention time (RT) and NaOH concentration had a significant effect on biomethane production. But, the effect of NP concentration on biomethane production was not significant. Also, the maximum biomethane production was obtained by NP40Na0 (about 50% higher than the control). On average, adding the NaOH and NPs improved the biomethane yield by about 25–40% vs in comparison with the control. The maximum biogas production yield was related to NP40Na0 with an enhancement of about 35% in comparison with the control. On average, adding nanoparticles and NaOH alkaline pretreatment improved the biogas production by about 10–20% in comparison with the control. Sustainable biomethane production can be obtained at an NP concentration of 50.24 mg and NaOH concentration of 24.04 mg, which increased the biomethane production by about 198%, and reduced human health, ecosystem quality, climate change, resources, and economic cost by about 87, 86, 92, 95, and 87%, respectively, in comparison with the control.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42243019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bonding Properties of AA1050 Strips Fabricated Via Electrically Assisted Roll Bonding (EARB) Process 电助滚焊AA1050带材的粘接性能

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-08-18 DOI: 10.2478/ata-2023-0024

S. Abdalkareem Jasim, H. H. Kzar, Abdullah Hasan Jabbar, A. Turki Jalil, S. Aravindhan, Shaymaa Abed Hussein, Ghassan Fadhil Smaisim, Dhameer A. Mutlak, Yasser Fakri Mustafa

引用次数: 0

Use of Digital Image Correlation in Predicting Mechanical Properties of Parts Made by Additive Manufacturing 数字图像相关在增材制造零件力学性能预测中的应用

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-08-18 DOI: 10.2478/ata-2023-0022

J. Pernica, Tomas Gajdaczek, Pavel Černý, P. Dostál, M. Brabec, M. Korenko

引用次数: 0

Physico-Mechanical Properties of Sugarcane Stalks 甘蔗秸秆的物理力学特性

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-08-18 DOI: 10.2478/ata-2023-0019

Ahmed F. Abdelhady, M. Ibrahim, H. Mansour, A. El-Shafie, Eid N. Abd EL Rahman

{"title":"Physico-Mechanical Properties of Sugarcane Stalks","authors":"Ahmed F. Abdelhady, M. Ibrahim, H. Mansour, A. El-Shafie, Eid N. Abd EL Rahman","doi":"10.2478/ata-2023-0019","DOIUrl":"https://doi.org/10.2478/ata-2023-0019","url":null,"abstract":"Abstract Manual harvesting of sugarcane requires skilled labourers, as improper harvesting leads to a significant loss of yield. Therefore, it is necessary to move towards designing a system capable of harvesting sugarcane on smallholdings, with high harvesting efficiency. This study aims to determine some physico-mechanical properties of sugarcane stalks related to harvester by making a comprehensive analysis of the compressing, bending, and shearing properties of sugarcane stalks. These properties were measured at three moisture content levels at three positions (base, middle, and top) of the stalk with three sugarcane varieties (G.T.54-9, IK 76-66, and HAO3-55-24). The different moisture contents were fresh stalk, after 7 days, and after 15 days. The values of different content with different varieties were (70.3, 42.1, and 23.2%), (68.7, 61.3, and 42.7%) and (66.4, 48.6, and 30.5%), respectively. The physico-mechanical properties of stalks were measured in terms of diameter, length, fresh mass, moisture content, sugarcane stalk bulk density, compression stress, shear stress and bending stress at three different positions (top, middle, and base).The most important results showed that the decreasing stalk moisture content of three sugarcane varieties led to an increase in compression, shear, and bending stresses.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49069019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Degradation of Ecological Energy Carriers Under Cyclic Pressure Loading 循环压力载荷下生态能量载体的降解

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-08-18 DOI: 10.2478/ata-2023-0023

M. Michalides, Š. Čorňák, J. Jelínek, R. Janoušková, L. Hujo, J. Nosian

{"title":"Degradation of Ecological Energy Carriers Under Cyclic Pressure Loading","authors":"M. Michalides, Š. Čorňák, J. Jelínek, R. Janoušková, L. Hujo, J. Nosian","doi":"10.2478/ata-2023-0023","DOIUrl":"https://doi.org/10.2478/ata-2023-0023","url":null,"abstract":"Abstract The presented work investigates the degradation of an ecological energy carrier in the form of changes in its properties, which was subjected to dynamic loading through a test device in laboratory conditions. The primary goal was to describe the degradation process itself in terms of obtained data through the analysis of kinematic viscosity, water content, acidity number, and X-ray spectrometry. The process was focused on monitoring the values of increase in contaminants and monitoring the values of changes that occurred in case of additives. The ecological energy carrier in the form of transmission-hydraulic fluid was cyclically loaded in a time interval of 200 working hours, while a time interval of every 25 working hours was used when a sample was taken and subsequently analysed. From the obtained data, it can be concluded that during the degradation process, there were no significant changes in the observed properties of the liquid, chemical composition, or additives. For this reason, further measurements of the ecological energy carrier were subsequently carried out. The influence of the given energy carrier on the change in the flow rate of a new type of hydraulic pump with external gearing was also monitored.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45039970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal and Mechanical Properties of Materials with Adverse Effect on the Environment 对环境有不利影响的材料的热力学性能

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-05-23 DOI: 10.2478/ata-2023-0011

Ladislav Smutný, I. Vitázek, J. Mareček

引用次数: 0

Optimization of the Plate Heat Exchanger Used for Milk Precooling 牛奶预冷用板式换热器的优化设计

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-05-23 DOI: 10.2478/ata-2023-0016

J. Fryč, J. Kudělka, J. Los, T. Koutny, V. Kebo

{"title":"Optimization of the Plate Heat Exchanger Used for Milk Precooling","authors":"J. Fryč, J. Kudělka, J. Los, T. Koutny, V. Kebo","doi":"10.2478/ata-2023-0016","DOIUrl":"https://doi.org/10.2478/ata-2023-0016","url":null,"abstract":"Abstract The article deals with the adjustment of the flow rate of milk and water by a plate heat exchanger, which is used for precooling milk. First, measurements of the parameters of the device in the stable were carried out. Subsequently, the plate heat exchanger was measured in the laboratory. Water at 35 °C was used instead of milk. Different flow ratios of cooling water and cooled water (instead of milk) were set. From the measured values, changes in the temperature of cooled water were calculated depending on its flow rate at a constant ratio of cooling water and cooled water. It was found that in the measured range, there are flow values at which temperature change is maximal. This dependence applies to all selected cooling water and cooled water flow ratios: (0.8, 0.9, 1.0, 1.1, 1.2.). The results show that with the same amount of cooling water, it is possible to achieve greater cooling of milk by 0.7 to 1.6 °C, or to achieve a reduction in water consumption. The device on the farm was modified to allow the flow of milk and cooling water to be changed. The optimal values found were set, and verification measurements were performed. The saving of 4.8% of cooling water was confirmed.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49583875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamics of Tractor Aggregated with Continuously Operating Planting Hole Digger 拖拉机与连续作业挖洞机合用的动力学研究

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-05-23 DOI: 10.2478/ata-2023-0010

H. Beloev, N. Long, Dau The Nhu

{"title":"Dynamics of Tractor Aggregated with Continuously Operating Planting Hole Digger","authors":"H. Beloev, N. Long, Dau The Nhu","doi":"10.2478/ata-2023-0010","DOIUrl":"https://doi.org/10.2478/ata-2023-0010","url":null,"abstract":"Abstract Digging holes for planting, which is a minimal tillage method, is beneficial in terms of reducing energy consumption and preventing erosion. Current popular hole diggers operate intermittently to give low productivity, and this problem can be solved by continuous hole digging machine with active tillage unit. On the basis of established principles, the kinematics of machine and its optimal parameters have been studied and determined. This paper presents the results of the study on dynamics of a tractor combined with a continuous excavator, as a basis for determining the combination’s working parameters, such as the speed of the unit and the number of rows. The experimental data on digger’s drag torque and the characteristics of Kubota B2530 tractor are the basis for simulating the working process at different speeds. The inequality of rotation speed and the moment of engine crankshaft is determined. Aggregates with single-row digger work stably in gears P1 to P6, while with double-row digger, stable operation is in gears P1 to P5. The productivity of a continuous operating digger is superior to that of an intermittent operating one. A continuous operating digger can reach 3500 pits·hour-1 with a double-row or 2400 pits·hour-1 with a single-row tractor aggregate.","PeriodicalId":43089,"journal":{"name":"Acta Technologica Agriculturae","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48459379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of the Effect of Potato Lifter Line on Some Properties at Different Depths and Varieties of Potato Crop 马铃薯提升系对不同深度和品种马铃薯作物某些性状影响的研究

IF 1.4

Acta Technologica Agriculturae Pub Date : 2023-05-23 DOI: 10.2478/ata-2023-0015

O. M. Tofeq

引用次数: 0