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Exploring the power of advanced spectral imaging and multivariate analysis for distinguishing similar carrot cultivars SCIE
期刊论文 | 2025 , 142 | JOURNAL OF FOOD COMPOSITION AND ANALYSIS
摘要&關鍵詞 引用

摘要 :

Carrots are a widely consumed vegetable around the world. They come in several varieties, each with their distinct quality traits. This study uses hyperspectral imaging to identify and predict soluble solids content (SSC) in three carrot cultivars using machine learning-based spectral analysis. After preprocessing the raw spectra, we constructed a partial least squares regression (PLSR) model to predict SSC using the preprocessed full spectra. iPLS and competitive adaptive reweighted sampling (CARS) methods were compared for variable selection. To differentiate carrots from three orchards, we developed four classification models: CARS-LDA, iPLS-LDA, iPLSKNN, and CARS-KNN. Results indicated that both CARS-LDA and iPLS achieved effective wavelength selection for the Fuzhou A carrot cultivar, with the CARS-LDA model demonstrating the highest predictive capability, reflected by a relative prediction deviation (RPD) value of 2.72. In terms of accuracy, specificity, sensitivity, and precision, the CARS-KNN model was the best. This study underscores the potential of hyperspectral imaging coupled with machine learning methodologies to reliably predict and distinguish between various carrot cultivars, thereby contributing significantly to improvements in food safety and quality control standards in the agricultural sector.

關鍵字 :

Carrot classification Carrot classification CARS-K-NN model CARS-K-NN model Feature wavelength selection Feature wavelength selection Hyperspectral imaging Hyperspectral imaging Machine learning techniques Machine learning techniques Partial least squares regression Partial least squares regression Soluble solid content Soluble solid content

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GB/T 7714 Arcel, Mulowayi Mutombo , Bin, Chen Long , Shen, Zhen Hui et al. Exploring the power of advanced spectral imaging and multivariate analysis for distinguishing similar carrot cultivars [J]. | JOURNAL OF FOOD COMPOSITION AND ANALYSIS , 2025 , 142 .
MLA Arcel, Mulowayi Mutombo et al. "Exploring the power of advanced spectral imaging and multivariate analysis for distinguishing similar carrot cultivars" . | JOURNAL OF FOOD COMPOSITION AND ANALYSIS 142 (2025) .
APA Arcel, Mulowayi Mutombo , Bin, Chen Long , Shen, Zhen Hui , Nyimbo, Witness Joseph , Turay, Mark Bayo , Zheng, Shu He . Exploring the power of advanced spectral imaging and multivariate analysis for distinguishing similar carrot cultivars . | JOURNAL OF FOOD COMPOSITION AND ANALYSIS , 2025 , 142 .
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Design and Experiments of Automatic Seedling Separation Device for Vegetable Substrate Block Seedling Transplanter SCIE
期刊论文 | 2025 , 15 (4) | AGRICULTURE-BASEL
摘要&關鍵詞 引用

摘要 :

To address the critical challenges of low success rates and high seedling damage in automatic transplanters for vegetable substrate block seedlings, this study took cabbage substrate block seedlings as the research object and designed a silica gel wheel-synchronous belt clamping seedling separation device. An experimental platform was constructed to perform a three-factor, three-level orthogonal test, investigating the effects of the wheelbase of the silica gel wheel, the inclination angle of the conveyor belt, and the wheelbase of the silica gel wheel and the synchronous belt on seedling separation success rate and substrate block breakage rate. A quadratic regression model was established to analyze the influence of each factor on the index and to optimize the parameter combination verification test. The results showed that the seedling separation effect was better when the wheelbase of the silica gel wheel was 60.47 mm, the inclination angle of the conveyor belt was 8.67 degrees, and the wheelbase of the silica gel wheel and seedling separation synchronous belt was 39.8 mm. The success rate of seedling separation was 90.21% and the substrate block breakage rate was 6.88% in the field verification test of this parameter combination. When the operating speed is 60 plants/min, there is a higher success rate of seedling separation and a lower substrate block breakage rate. This study explored the conditions for stable seedling separation using the seedling separation device, and provided practical reference for the study of the automatic seedling separation of substrate block seedlings.

關鍵字 :

agricultural machinery agricultural machinery seedling dividing device seedling dividing device substrate block seedling substrate block seedling vegetable transplanter vegetable transplanter

引用:

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GB/T 7714 Zheng, Shuhe , Li, Jicheng , Dong, Zhenfa et al. Design and Experiments of Automatic Seedling Separation Device for Vegetable Substrate Block Seedling Transplanter [J]. | AGRICULTURE-BASEL , 2025 , 15 (4) .
MLA Zheng, Shuhe et al. "Design and Experiments of Automatic Seedling Separation Device for Vegetable Substrate Block Seedling Transplanter" . | AGRICULTURE-BASEL 15 . 4 (2025) .
APA Zheng, Shuhe , Li, Jicheng , Dong, Zhenfa , Wang, Jufei , Weng, Wuxiong , Cui, Zhichao et al. Design and Experiments of Automatic Seedling Separation Device for Vegetable Substrate Block Seedling Transplanter . | AGRICULTURE-BASEL , 2025 , 15 (4) .
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其他版本 :

生态茶园“土壤-绿肥根茬秸秆-开沟触土部件”离散元模型建立与验证
期刊论文 | 2025 , 54 (03) , 420-431 | 福建农林大学学报(自然科学版)
摘要&關鍵詞 引用

摘要 :

【目的】获取生态茶园土壤与开沟触土部件相互作用的离散元仿真模型参数,建立生态茶园的“土壤-绿肥根茬秸秆-开沟触土部件”离散元仿真模型,为生态茶园触土部件离散元仿真研究提供依据。【方法】采用物理下落堆积、斜面滚动试验与离散元仿真联合方案,基于Hertz-Mindlin with Bonding接触模型,对土壤颗粒间及土壤-开沟触土部件材料(65 Mn钢)接触参数进行标定。以土壤下落堆积角、土壤颗粒斜面滚动距离为评价指标,以静摩擦系数、滚动摩擦系数和恢复系数为试验因素,应用Box-Behnken的响应面优化方法,确定土壤堆积角与土球斜面滚动距离的回归模型。【结果】模型优化处理后,土壤颗粒之间的静摩擦系数、滚动摩擦系数和恢复系数分别为1.017、0.089和0.222。土壤-开沟部件的静摩擦系数、滚动摩擦系数和恢复系数分别为0.279、0.104和0.487。仿真标定结果与物理试验的相对误差为0.68%和0.98%。基于标定参数建立生态茶园“土壤—绿肥根茬秸秆-开沟触土部件”离散元仿真模型,通过仿真试验与田间试验对比分析,开沟深度和开沟宽度的最大相对误差分别为8.15%和6.36%。【结论】标定优化后的参数与物理试验的相对误差小,建立的生态茶园“土壤-绿肥根茬秸秆-开沟触土部件”离散元仿真模型的可靠性与有效性较高。

關鍵字 :

参数标定 参数标定 土壤 土壤 旋耕开沟 旋耕开沟 生态茶园 生态茶园 离散元法 离散元法

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GB/T 7714 陈龙彬 , 陈凌霄 , 郑书河 . 生态茶园“土壤-绿肥根茬秸秆-开沟触土部件”离散元模型建立与验证 [J]. | 福建农林大学学报(自然科学版) , 2025 , 54 (03) : 420-431 .
MLA 陈龙彬 et al. "生态茶园“土壤-绿肥根茬秸秆-开沟触土部件”离散元模型建立与验证" . | 福建农林大学学报(自然科学版) 54 . 03 (2025) : 420-431 .
APA 陈龙彬 , 陈凌霄 , 郑书河 . 生态茶园“土壤-绿肥根茬秸秆-开沟触土部件”离散元模型建立与验证 . | 福建农林大学学报(自然科学版) , 2025 , 54 (03) , 420-431 .
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其他版本 :

基于改进鲸鱼优化PID算法的变量喷药控制系统研究
期刊论文 | 2025 , 46 (03) , 87-92 | 中国农机化学报
摘要&關鍵詞 引用

摘要 :

为解决传统PID控制方法实时性差与准确性低的问题,实现PID控制参数的自动整定,将改进的鲸鱼优化算法(IWOA)与PID控制相结合,设计一种基于改进鲸鱼优化PID算法(IWOA—PID)的变量喷药控制系统。同时,构建变量喷药控制系统传递函数数学模型,利用MATLAB对变量喷药控制系统进行仿真试验并搭建喷药试验台进行试验验证。仿真结果表明:相比于传统PID控制,IWOA—PID控制系统超调量由1.39%减少到0.10%,稳态误差由1.19%减小到0,调节时间由1.072 s减少到0.806 s。试验结果表明:IWOA—PID控制的系统响应更快,平均响应时间为2.98 s,而PID控制的平均系统响应时间为4.46 s;平均稳态误差由17.1%减小到11.3%。该方法能够较好地满足农业生产中对实时性与准确性的需求,为变量喷药技术的研究提供新途径。

關鍵字 :

PID控制 PID控制 参数优化 参数优化 变量喷药 变量喷药 控制系统 控制系统 改进鲸鱼优化算法 改进鲸鱼优化算法

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GB/T 7714 秦吉彪 , 陈龙彬 , 鲍地发 et al. 基于改进鲸鱼优化PID算法的变量喷药控制系统研究 [J]. | 中国农机化学报 , 2025 , 46 (03) : 87-92 .
MLA 秦吉彪 et al. "基于改进鲸鱼优化PID算法的变量喷药控制系统研究" . | 中国农机化学报 46 . 03 (2025) : 87-92 .
APA 秦吉彪 , 陈龙彬 , 鲍地发 , 郑书河 . 基于改进鲸鱼优化PID算法的变量喷药控制系统研究 . | 中国农机化学报 , 2025 , 46 (03) , 87-92 .
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其他版本 :

Optimizing nutrient retention in carrots during storage: A hyperspectral imaging approach SCIE
期刊论文 | 2025 , 146 | JOURNAL OF FOOD COMPOSITION AND ANALYSIS
摘要&關鍵詞 引用

摘要 :

This research investigated the behavior of key nutritional elements specifically, titratable acidity (TA), and vitamin C within the xylem and cortex of carrots during various storage durations and temperatures. A hyperspectral imaging system captured 300 images across 472 wavebands ranging from 400 to 1000 nm. Regions of interest (ROIs) were defined to extract average spectra from these hyperspectral images (HSI). We developed two analytical models: support vector regression (SVR) and Partial Least Squares Discriminant Analysis (PLS-DA), to quantitatively analyze the relationships between pigment levels and spectral data. Uninformative Variable Elimination (UVE) and loading weights (LW) approaches were used to select effective wavelengths (EWs) for modeling. The reduction of vitamin C was found to be considerably influenced by changes in storage temperature and time, with comparable effects observed in the cortex and xylem. However, when compared to the cortex, TA showed a more milder increase in the xylem. This study concludes by highlighting the promise of HSI as an effective and non-destructive method for monitoring the chemical composition of carrot roots while they are being stored at different temperatures and times. These results are consistent with earlier studies on the quantitative evaluation of internal carrot quality and add to the body of existing information.

關鍵字 :

Carrot storage Carrot storage Hyperspectral imaging Hyperspectral imaging Nutritional elements Nutritional elements Quantitative analysis model Quantitative analysis model Temperature and time effects Temperature and time effects

引用:

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GB/T 7714 Arcel, Mulowayi Mutombo , Meng, Li , Gatsi, Blessing et al. Optimizing nutrient retention in carrots during storage: A hyperspectral imaging approach [J]. | JOURNAL OF FOOD COMPOSITION AND ANALYSIS , 2025 , 146 .
MLA Arcel, Mulowayi Mutombo et al. "Optimizing nutrient retention in carrots during storage: A hyperspectral imaging approach" . | JOURNAL OF FOOD COMPOSITION AND ANALYSIS 146 (2025) .
APA Arcel, Mulowayi Mutombo , Meng, Li , Gatsi, Blessing , Shen, Zhen Hui , Murengami, Bryan Gilbert , Cui, Zhe ming et al. Optimizing nutrient retention in carrots during storage: A hyperspectral imaging approach . | JOURNAL OF FOOD COMPOSITION AND ANALYSIS , 2025 , 146 .
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其他版本 :

基于改进的多视角茶树三维重建方法
期刊论文 | 2025 , 42 (06) , 134-138,153 | 计算机仿真
摘要&關鍵詞 引用

摘要 :

随着计算机技术的发展,三维重建技术作为一个新兴领域,越来越广泛用于人们的日常生活中。植物三维重建作为三维重建领域的一个分支,在农业生产、机器人定位、机器人定位、自然景观再现、研究植物生长状态、植物形态研究、电影游戏等多个领域都得到了应用。以白茶这一植物为例,以改进的运动恢复结构为基础进行三维重建。首先,使用直方图均衡化增加了图像的动态范围,再基于yolov5对白茶进行训练以减少背景对重建的影响,训练识别率达到90%以上,再基于运动恢复结构对白茶进行重建得到点云。由于初始点云具有大量噪声点,手动去除噪声点并基于Possion表面重建得到茶树精确三维模型。最后,通过对比不同帧采样、重建精度配置下的重建效率以及模型精度,得到三维重建的最佳重建策略。优化后的重建策略使得重建速度保持在5min以内,并保持了重建精度,为多视角三维重建技术在植物领域的三维重建提供了理论基础。

關鍵字 :

图像分割 图像分割 白茶 白茶 直方图均衡化 直方图均衡化 系统优化 系统优化 运动恢复结构 运动恢复结构

引用:

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GB/T 7714 冯睿鸣 , 郑书河 , 雷锦桂 . 基于改进的多视角茶树三维重建方法 [J]. | 计算机仿真 , 2025 , 42 (06) : 134-138,153 .
MLA 冯睿鸣 et al. "基于改进的多视角茶树三维重建方法" . | 计算机仿真 42 . 06 (2025) : 134-138,153 .
APA 冯睿鸣 , 郑书河 , 雷锦桂 . 基于改进的多视角茶树三维重建方法 . | 计算机仿真 , 2025 , 42 (06) , 134-138,153 .
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其他版本 :

基于机器视觉的茶园智能精准喷药系统及喷药方法 ipsunlight
专利 | 2025-06-06 | CN202510751300.1
摘要&關鍵詞 引用

摘要 :

本发明提供了一种基于机器视觉的茶园智能精准喷药系统及喷药方法,属于茶园机械技术领域,所述方法包括:步骤S1:构建茶叶病害检测模型;步骤S2:采集茶园现场图片;步骤S3:将步骤S2采集的茶园现场图片传输至NVIDIA Jetson Orin Nano主控系统上,并通过步骤S1得到的检测模型进行检测,判断是否有病虫害发生:如果有,则计算出病虫害发生的位置后进行喷药处理。实现茶园病虫害的精准识别,以及精准喷药。

引用:

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GB/T 7714 郑书河 , 黄伟良 , 陈洪彬 et al. 基于机器视觉的茶园智能精准喷药系统及喷药方法 : CN202510751300.1[P]. | 2025-06-06 .
MLA 郑书河 et al. "基于机器视觉的茶园智能精准喷药系统及喷药方法" : CN202510751300.1. | 2025-06-06 .
APA 郑书河 , 黄伟良 , 陈洪彬 , 李梦 , 赖镇辉 , 陈龙彬 et al. 基于机器视觉的茶园智能精准喷药系统及喷药方法 : CN202510751300.1. | 2025-06-06 .
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其他版本 :

ESG-YOLO: An Efficient Object Detection Algorithm for Transplant Quality Assessment of Field-Grown Tomato Seedlings Based on YOLOv8n SCIE
期刊论文 | 2025 , 15 (9) | AGRONOMY-BASEL
摘要&關鍵詞 引用

摘要 :

Intelligent detection of tomato seedling transplant quality represents a core technology for advancing agricultural automation. However, in practical applications, existing algorithms still face numerous technical challenges, particularly with prominent issues of false detections and missed detections during recognition. To address these challenges, we developed the ESG-YOLO object detection model and successfully deployed it on edge devices, enabling real-time assessment of tomato seedling transplanting quality. Our methodology integrates three key innovations: First, an EMA (Efficient Multi-scale Attention) module is embedded within the YOLOv8 neck network to suppress interference from redundant information and enhance morphological focus on seedlings. Second, the feature fusion network is reconstructed using a GSConv-based Slim-neck architecture, achieving a lightweight neck structure compatible with edge deployment. Finally, optimization employs the GIoU (Generalized Intersection over Union) loss function to precisely localize seedling position and morphology, thereby reducing false detection and missed detection. The experimental results demonstrate that our ESG-YOLO model achieves a mean average precision mAP of 97.4%, surpassing lightweight models including YOLOv3-tiny, YOLOv5n, YOLOv7-tiny, and YOLOv8n in precision, with improvements of 9.3, 7.2, 5.7, and 2.2%, respectively. Notably, for detecting key yield-impacting categories such as "exposed seedlings" and "missed hills", the average precision (AP) values reach 98.8 and 94.0%, respectively. To validate the model's effectiveness on edge devices, the ESG-YOLO model was deployed on an NVIDIA Jetson TX2 NX platform, achieving a frame rate of 18.0 FPS for efficient detection of tomato seedling transplanting quality. This model provides technical support for transplanting performance assessment, enabling quality control and enhanced vegetable yield, thus actively contributing to smart agriculture initiatives.

關鍵字 :

edge device deployment edge device deployment ESG-YOLO ESG-YOLO tomato seedlings tomato seedlings transplanting quality detection transplanting quality detection

引用:

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GB/T 7714 Wu, Xinhui , Dong, Zhenfa , Wang, Can et al. ESG-YOLO: An Efficient Object Detection Algorithm for Transplant Quality Assessment of Field-Grown Tomato Seedlings Based on YOLOv8n [J]. | AGRONOMY-BASEL , 2025 , 15 (9) .
MLA Wu, Xinhui et al. "ESG-YOLO: An Efficient Object Detection Algorithm for Transplant Quality Assessment of Field-Grown Tomato Seedlings Based on YOLOv8n" . | AGRONOMY-BASEL 15 . 9 (2025) .
APA Wu, Xinhui , Dong, Zhenfa , Wang, Can , Zhu, Ziyang , Guo, Yanxi , Zheng, Shuhe . ESG-YOLO: An Efficient Object Detection Algorithm for Transplant Quality Assessment of Field-Grown Tomato Seedlings Based on YOLOv8n . | AGRONOMY-BASEL , 2025 , 15 (9) .
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其他版本 :

Design and test of the progressive push-out automatic seedling-taking device for vegetable substrate block seedlings SCIE
期刊论文 | 2025 , 18 (4) , 89-100 | INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING
摘要&關鍵詞 引用

摘要 :

Aiming at the problems of low success rate and high seedling injury rate of automatic vegetable transplanting, this study focused on cabbage substrate block seedlings and developed a progressive push-out automatic seedling device controlled by a PLC system. Based on the friction mechanical properties of seedlings-tray during seedling taking, the collision rebound theoretical analysis of substrate block seedling delivery and the finite element simulation analysis of the seedling taking mechanism were carried out to determine the conditions for stable seedling taking and delivery of the device and the working parameters of the key mechanisms. To evaluate individual parameter effects, a test bench was built, and the effective ranges key factors were subsequently determined. Three key experimental factors, the inclination angle of the limit guide plate, the seedling separation channel width, and the seedling separation cylinder pressure, were investigated using an L9(3(4)) orthogonal array design with blockage rate and breakage rate as evaluation metrics. The range and variance analysis methods were employed to determine the relative significance of each factor's influence on the performance indicators. The optimal parameters were determined as: the inclination angle of the limiting guide plate was 3.5 degrees, the width of the seedling separation channel was 50 mm, and the pressure of the seedling separation cylinder was 0.6 MPa. Under these conditions, the seedling taking effect was significantly improved: the blockage rate was 2.46%, the breakage rate was 3.18%, and the seedling taking success rate was 94.36%. The optimal parameter combination was verified by the experiment: the average blockage rate was 3.23%, the average breakage rate was 3.68%, and the average success rate was 93.09%. Compared with the orthogonal experiment, the relative success rate error was 1.27%, indicating that the device has high stability. This study will provide reference for the design of automatic vegetable transplanters.

關鍵字 :

automatic seedling taking device automatic seedling taking device PLC control system PLC control system progressive push-out progressive push-out substrate block seedlings substrate block seedlings transplanter transplanter

引用:

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GB/T 7714 Cui, Zhichao , Fu, Jingjing , Li, Jicheng et al. Design and test of the progressive push-out automatic seedling-taking device for vegetable substrate block seedlings [J]. | INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING , 2025 , 18 (4) : 89-100 .
MLA Cui, Zhichao et al. "Design and test of the progressive push-out automatic seedling-taking device for vegetable substrate block seedlings" . | INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING 18 . 4 (2025) : 89-100 .
APA Cui, Zhichao , Fu, Jingjing , Li, Jicheng , Ji, Haibo , Wu, Changhao , Zheng, Shuhe et al. Design and test of the progressive push-out automatic seedling-taking device for vegetable substrate block seedlings . | INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING , 2025 , 18 (4) , 89-100 .
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Parameter Optimization Design and Experimental Validation of a Header for Electric Rice Reaper Binders Employed in Hilly Regions SCIE
期刊论文 | 2025 , 15 (12) | AGRICULTURE-BASEL
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摘要 :

The operation of electric rice reaper binders in hilly and mountainous areas currently faces the challenges of poor conveying efficiency and high harvest losses caused by the large dispersion of rice stem posture angles. In this study, we propose a multiparameter collaborative optimization method for improving header structure in an effort to address these challenges. First, key parameters influencing lifting performance and their operational ranges were determined based on a theoretical analysis of the stem-lifting mechanism's kinematic characteristics. A dynamic model simulating the header's lifting process was developed by using the ADAMS multibody dynamics platform. Subsequently, we designed a quadratic regression orthogonal rotation combination experiment with three factors, i.e., the stem-lifting speed ratio coefficient, the cutter installation position, and the header tilt angle, using the stem-lifting angle as the evaluation metric. The variance in the experimental data was analyzed with Design-Expert 13.0, and response surface methodology (RSM) was applied to elucidate the parameter interaction effects. The optimal parameter combination was identified as a speed ratio coefficient of 2.14, a cutter installation position of 258.79 mm, and a header tilt angle of 62.63 degrees, yielding a theoretical stem-lifting angle of 2.36 degrees. Field validation tests demonstrated an actual stem-lifting angle of 2.44 degrees (relative error: 3.39%) and a header loss rate of 0.59%, representing a 49.6% reduction compared with the pre-optimized design. These results confirm that the optimized header satisfies operational requirements for hilly terrain rice harvesting, providing both theoretical guidance and technical advancements for the design of low-loss harvesting machinery.

關鍵字 :

ADAMS ADAMS header header optimization optimization reaper binder reaper binder rice rice

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GB/T 7714 Ren, Jinbo , Bao, Difa , Liang, Zhi et al. Parameter Optimization Design and Experimental Validation of a Header for Electric Rice Reaper Binders Employed in Hilly Regions [J]. | AGRICULTURE-BASEL , 2025 , 15 (12) .
MLA Ren, Jinbo et al. "Parameter Optimization Design and Experimental Validation of a Header for Electric Rice Reaper Binders Employed in Hilly Regions" . | AGRICULTURE-BASEL 15 . 12 (2025) .
APA Ren, Jinbo , Bao, Difa , Liang, Zhi , Yan, Chongsheng , Wu, Junbo , Wu, Xinhui et al. Parameter Optimization Design and Experimental Validation of a Header for Electric Rice Reaper Binders Employed in Hilly Regions . | AGRICULTURE-BASEL , 2025 , 15 (12) .
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