International Journal of Agricultural and Biological Engineering最新文献

{"title":"Study on S-shaped region of pump turbine based on Omega vortex analysis method and entropy production theory","authors":"Zhenggui Li, Hongji Zeng, Kun Wang, Xiaodong Peng, Shengnan Yan, Qin Zhao","doi":"10.25165/j.ijabe.20231603.7831","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231603.7831","url":null,"abstract":"","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135361587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and experiment of the pneumatic pressure control device for no-till planter","authors":"Xinpeng Cao, Qingjie Wang, Hongwen Li, Jin He, Caiyun Lu, Dijuan Xu, Xiuhong Wang","doi":"10.25165/j.ijabe.20231603.7670","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231603.7670","url":null,"abstract":"","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135361594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatiotemporal changes and influencing factors of the intensity of agricultural water footprint in Xinjiang, China","authors":"Yanyun Wang, Aihua Long, Xiaoya Deng, Abuduaini Abulizi, Jie Wang, Pei Zhang, Yang Hai, Cai Ren, Ji Zhang, Yundong Liu, Weiming Zhao","doi":"10.25165/j.ijabe.20231603.7058","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231603.7058","url":null,"abstract":"","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135361267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Canopy deposition characteristics of different orchard pesticide dose models","authors":"Qingqing Zhou, Xinyu Xue, Chen Chen, Chen Cai, Yuxuan Jiao","doi":"10.25165/j.ijabe.20231603.7665","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231603.7665","url":null,"abstract":"","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135361269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and tests of sliding contact line-powered track transporter","authors":"Yihua Jiang, Fang Yang, Zihao Zhang, Shanjun Li","doi":"10.25165/j.ijabe.20231604.7841","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231604.7841","url":null,"abstract":"In order to solve the problems of complexity of control systems and the limited power supply of traditional fuel-powered and battery-driven transporters operating in mountainous orchards, a sliding contact line-powered track transporter was designed and manufactured based on theoretical calculations. Key components of the transporter were developed such as a PLC-based (programmable logic controller) control system, a sliding contact power supply, and transmission system, and a position limit device. The functions and performance of designed transporter were tested. The test results showed that the transporter exhibited a high stability of operation with an average operation velocity of 0.70 m/s, the maximum working slope of 48°, the maximum load of 400 kg, and the maximum remote control distance reaching 1482 m. When the power supply circuit of sliding contact line was 108.8 m in length, the maximum voltage drop was 2.4 V, and the maximum power loss was 174.72 W, which were close to the theoretical calculation values. With a single power supply cabinet, the transporter can operate normally for a maximum track distance of 175.69 m. All the technical indicators of the transporter met the design requirements, and the above-mentioned problems such as complexity of the control system and limited energy supply of the traditional mountain orchard transporter were well solved. This study can provide reference for the design and optimization of mountain orchard transporter. Keywords: mountain orchard, transporter, remote control, sliding contact line, voltage drop DOI: 10.25165/j.ijabe.20231604.7841 Citation: Jiang Y H, Yang F, Zhang Z H, Li S J. Development and tests of sliding contact line-powered track transporter. Int J Agric & Biol Eng, 2023; 16(4): 68–75.","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135658902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimal chemigation duration model based on the crop and environment effects","authors":"Hui Wang, Wenpeng Shi, Wene Wang, Xiaotao Hu, Gang Ling, Rong Wei","doi":"10.25165/j.ijabe.20231604.7408","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231604.7408","url":null,"abstract":"Herbicides with drip irrigation (chemigation) could control the herbicides application accurately as the irrigation technology, and could reduce the harm to humans and the environment. However, the herbicide concentration is not consistent in the advancing process along the drip irrigation tape of different lengths, which not only influences the crop growth and results in herbicide residue. In this study, the crop and environmental effects of chemigation were discussed, potassium permanganate was used to replace herbicides, and a laboratory test was conducted to determine the best application duration. Based on this result, the maize field experiment of chemigation under plastic mulch was carried out to compare the effects of maize growth index, yield and herbicide residue for determining the optimal chemigation mode. The result shows that there is no significant difference in the application uniformity among treatments, but the leaf area index (LAI), yield, and double-ear rate of maize under continuous application (CA) were higher than those under periodic application (PA) and no application (NA) significantly. One month after the application, the acetochlor residue of the two modes was less than 1%, which would not cause pollution to the surrounding environment. And there was a significant linear regression relationship between the length of drip irrigation tape and the optimal application duration under the same acetochlor dosage. Keywords: chemigation, irrigation mode, maize, environment DOI: 10.25165/j.ijabe.20231604.7408 Citation: Wang H, Shi W P, Wang W E, Hu X T, Ling G, Wei R. An optimal chemigation duration model based on the crop and environment effects. Int J Agric & Biol Eng, 2023; 16(4): 41-50","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vibration analysis and topology optimization of the header of full-feeding rice combine harvester","authors":"Han Tang, Changsu Xu, Jianhua Zhu, Rui Guan, Jinwu Wang","doi":"10.25165/j.ijabe.20231604.7096","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231604.7096","url":null,"abstract":"The header frame of full-feeding rice combine harvester was characterized by severe vibration due to the excitation force generated by the movement of each working part. In order to solve the problem, the parametric model of header frame was established, and the accuracy of the finite element model was verified by comparison the results of the free modal analysis and free vibration modal test based on Eigensystem Realization Algorithm (ERA). Then the constrained modal frequencies were calculated and compared with the external excitation source frequencies, the results showed that the first and eighth order modal natural frequencies were coupled with the excitation frequencies of the threshing cylinder and the engine respectively, which was apt to resonate. To avoid resonance and achieve lightweight design, topology optimization and the finite element analysis was carried out. The optimization results showed that the strength and rigidity meet the requirements and the weight was 14.17% lower than before. The first and eighth order modal natural frequencies were far away from the excitation frequencies range of threshing cylinder and engine, and the frequencies were far away from the range of each excitation frequency, which effectively avoided the occurrence of resonance. Field experiments showed that the peak value of the vibration acceleration in the three directions of the 8 measuring points of the optimized header frame was significantly reduced, which effectively reduced the vibration of the header frame during harvest. This study provides a method for obtaining the vibration characteristics of key components of agricultural machinery, and provides a reference for the weight and vibration reduction of header frame of rice, wheat, rape and other crop combine harvesters. Keywords: eigensystem realization algorithm, modal analysis, free modal test, topology optimization, lightweight, field experiment DOI: 10.25165/j.ijabe.20231604.7096 Citation: Tang H, Xu C S, Zhu J H, Guan R, Wang J W. Vibration analysis and topology optimization of the header of full-feeding rice combine harvester. Int J Agric & Biol Eng, 2023; 16(4): 96-108.","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental investigation on the spray characteristics of agricultural full-cone pressure swirl nozzle","authors":"Xiuyun Xue, Xufeng Xu, Shilei Lyu, Shuran Song, Xin Ai, Nengchao Li, Zhenyu Yang, Zhen Li","doi":"10.25165/j.ijabe.20231604.7088","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231604.7088","url":null,"abstract":"The spray characteristics of a full-cone pressure swirl nozzle have been investigated in this study. The results were defined by Reynolds number, which focuses on the breakup of liquid film, droplet size, velocity, and liquid volume flux under different Reynolds numbers at the near-field spray. The spray structure was visualized using a high-speed camera, and the characteristics of droplets were measured using a Phase Doppler Anemometer (PDA) in both the radial and axial directions. The tests were carried out at varying spray pressures (0.2 to 1.0 MPa), corresponding to different Reynolds numbers (5369 to 12006). It was found that when the Reynolds number rises, the liquid became more unstable after leaving the nozzle, causing the liquid film to break up faster. According to the measurements of PDA, the coalescence of droplets increased due to the centrifugal effect. What’s more, the velocity of the droplets fluctuates significantly in the radial direction, and the droplets with a smaller particle size had a higher average velocity. From the perspective of liquid distribution, the increase in Reynolds number caused the spray liquid to move in the radial direction gradually. In contrast, the liquid volume distribution changed in the radial direction more obviously than in the axial direction, growing to the maximum along the radial direction and gradually reducing. It can provide a reference for selecting operating parameters for actual agricultural spray operations and the design of electrostatic nozzles through the research on breakup and droplet characteristics. Keywords: full-cone pressure swirl nozzle, droplet size, droplet velocity, liquid volume flux, high-speed camera, PDA DOI: 10.25165/j.ijabe.20231604.7088 Citation: Xue X Y, Xu X F, Lyu S L, Song S R, Ai X, Li N C, et al. Experimental investigation on spray characteristics of agricultural full-cone pressure swirl nozzle. Int J Agric & Biol Eng, 2023; 16(4): 29–40.","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135659262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient harvesting of green microalgae cells by magnetic flocculated Fe3O4 nanoparticles combined with chitosan","authors":"Sifen Liu, Suping Fu, Zhongjie Wen, Xiang Wang, Tianjiu Jiang, Hongye Li","doi":"10.25165/j.ijabe.20231604.7809","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231604.7809","url":null,"abstract":"Microalgae harvesting remains a challenging step in microalgae industrialization, thereby provoking the necessity to explore sustainable and economically feasible approaches. This research investigated the use of magnetic flocculated nanoparticles in the harvesting of the common microalgae Chlorella pyrenoidosa and Scenedesmus obliquus. The results showed that magnetic flocculated nanoparticles efficiently adsorbed negatively charged microalgae cells, and a magnetic field could adsorb the magnetic flocculated nanoparticles, thereby harvesting the microalgae cells. Harvesting efficiency was remarkably increased at the optimum magnetic field strength of 0.5 T with the magnetic flocculated nanoparticles at 0.738 g/L, and microalgae broth at pH 9.0, whereas the recovery rates of both C. pyrenoidosa and S. obliquus were around 97% and the sedimentation speed of both was above 2.63 cm/min. This study exemplified the magnetic flocculated nanoparticles-based approach to effectively harvest the microalgae cells. Keywords: magnetic flocculated nanoparticles, Chlorella pyrenoidosa, Scenedesmus obliquus, recovery rate, sedimentation speed DOI: 10.25165/j.ijabe.20231604.7809 Citation: Liu S F, Fu S P, Wen Z J, Wang X, Jiang T J, Li H Y. Efficient harvesting of green microalgae cells by magnetic flocculated Fe3O4 nanoparticles combined with chitosan. Int J Agric & Biol Eng, 2023; 16(4): 215-221","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135660295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive evaluation of the optimal rates of irrigation and potassium application for strawberry","authors":"X. Yang, Rongcheng Du, Mengchi Zhang, Huawei Feng, Ziqing Wang, Zhi Zhang","doi":"10.25165/j.ijabe.20231602.7591","DOIUrl":"https://doi.org/10.25165/j.ijabe.20231602.7591","url":null,"abstract":": Accurate and effective management of irrigation and fertilization is essential for efficient greenhouse strawberry production. Here, the effects of the combined application of water and potassium on strawberry growth were evaluated by experimenting with 12 treatments, including four transpiration (ET C )-based irrigation levels (W1: 100% ET C , W2: 85% ET C , W3: 70% ET C , and W4: 55% ET C ) and three potassium levels according to the target yield (K1: 369.5 kg/hm 2 , K2: 307.9 kg/hm 2 , and K3: 246.3 kg/hm 2 ). Various indexes of strawberry yield, fruit quality, water and fertilizer utilization efficiency, and soil nutrient residues were measured. Irrigation and potassium application had significant effects on strawberry production. Higher irrigation levels increased yield ( Y ), and moderate water and potassium application increased single fruit weight (SFW), water utilization efficiency (WUE), total soluble sugar (TSSC), and the sugar-acid ratio (SAR). While low-application of potassium increased the soluble protein content (SP), partial factor productivity of potassium (PFP K ), and reduce nutrient residues in soil effectively. A comprehensive system for evaluating strawberry growth and its benefits to the soil environment was developed. The FAHP and CRITIC methods were used to calculate the subjective weight and objective weight of each index, respectively. The largest subjective weight was observed for Y (0.200), and the largest objective weight was observed for soil-available potassium (0.101). The final weight was determined using Game theory; Y had the highest weight (0.185), and free amino acids (FAA) had the lowest weight (0.047). Grey relational analysis (GRA) was used to evaluate the optimal irrigation and potassium scheme for accomplishing multiple objectives. The response of the comprehensive score of strawberries to irrigation and potassium exhibited a negative parabolic relationship, and the effect of irrigation was greater than the effect of potassium application. There was a significant interaction between irrigation and potassium application, and an irrigation amount of 2053-2525 m 3 /hm 2 with a potassium application rate of 288.1-334.2 kg/hm 2 was optimal for promoting strawberry yield, fruit quality, and efficiency and reducing soil nutrient residues. The results of this study provide new insights that could aid the development of sustainable approaches for enhancing agricultural production.","PeriodicalId":13895,"journal":{"name":"International Journal of Agricultural and Biological Engineering","volume":"223 4","pages":""},"PeriodicalIF":2.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72419733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}