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Osvaldo PENISI,José BOCCA,Horacio AGUILAR,Pedro BOCCA
《机械工程前沿(英文)》 2015年 第10卷 第3期 页码 221-232 doi: 10.1007/s11465-015-0347-9
In the mechanized harvest of vines, grape berries are detached through the vibration to the structure supporting the clusters. According to the kind of guide selected, the clusters require one or two vibration directions in the structure. For guiding in parral structures, vibration is necessary in two directions or planes: One perpendicular to the other. The guide branches producing the clusters develop in these planes, and the guiding is called H-guiding. Mechanism theory indicates that a mechanism has as many degrees of freedom as its actuators, and an actuator is needed to achieve a certain vibration. Having the smallest number of possible actuators is beneficial in reducing moving parts and achieving more compact and easily controllable mecha-nisms. In this case, a single degree-of-freedom mechanism is proposed. It is capable of generating vibrations on two planes: One perpendicular to the other. This mechanism is the sum of two link mechanisms on perpendicular planes with a common outlet located at the output rod of the mechanism where the actuator is found. As the distance between the soil and the elements containing the clusters is not constant, a system has been designed to measure the accelerations at the bars and the rocker to validate the acceleration values that detach the grape berries in a prototype in a lab experiment, to ensure that the acceleration needed for pulling the grape berries are produced at any contact point of the bar.
Hip-mounted electromagnetic generator to harvest energy from human motion
Dan DAI,Jing LIU
《能源前沿(英文)》 2014年 第8卷 第2期 页码 173-181 doi: 10.1007/s11708-014-0301-2
关键词: human power harvesting pervasive energy electricity generation wearable energy renewable and sustainable energy mobile electronics
Treatment, residual chlorine and season as factors affecting variability of trihalomethanes in small
Roberta DYCK,Geneviève COOL,Manuel RODRIGUEZ,Rehan SADIQ
《环境科学与工程前沿(英文)》 2015年 第9卷 第1期 页码 171-179 doi: 10.1007/s11783-014-0750-1
关键词: drinking water residual chlorine seasonal variability small municipal systems treatment technologies trihalomethanes
Breeding for pre-harvest sprouting resistance in bread wheat under rainfed conditions
Muhammad ZEESHAN, Waheed ARSHAD, Muhammad Imran KHAN, Shiraz ALI, Ali NAWAZ, Amina BATOOL, Muhammad TARIQ, Muhammad Imran AKRAM, Muhammad Amjad ALI
《农业科学与工程前沿(英文)》 2018年 第5卷 第2期 页码 253-261 doi: 10.15302/J-FASE-2018218
关键词: bread wheat germination index general combining ability pre-harvest sprouting specific combining ability
Influence of harvest date on seed yield and quality in forage kochia
Cody F. CREECH, Blair L. WALDRON, Corey V. RAMSOM, Dale R. ZOBELL, Joseph Earl CREECH
《农业科学与工程前沿(英文)》 2018年 第5卷 第1期 页码 71-79 doi: 10.15302/J-FASE-2017196
Extracts from cotton over the whole growing season induce
Ming LANG, Rui YU, Yongqing MA, Wei ZHANG, Christopher S. P. McErlean
《农业科学与工程前沿(英文)》 2017年 第4卷 第2期 页码 228-236 doi: 10.15302/J-FASE-2017150
关键词: agricultural systems cotton crop ecology crop rotation systems weed management
Optimization model analysis of centralized groundwater source heat pump system in heating season
Shilei LU,Yunfang QI,Zhe CAI,Yiran LI
《能源前沿(英文)》 2015年 第9卷 第3期 页码 343-361 doi: 10.1007/s11708-015-0372-8
关键词: optimization model groundwater source heat pump system theoretical analysis example verification heating season
Approaches to achieve high grain yield and high resource use efficiency in rice
Jianchang YANG
《农业科学与工程前沿(英文)》 2015年 第2卷 第2期 页码 115-123 doi: 10.15302/J-FASE-2015055
关键词: rice nitrogen-efficient cultivar grain fill harvest index nitrogen use efficiency water use efficiency
Xiying ZHANG,Wenli QIN,Juanna XIE
《农业科学与工程前沿(英文)》 2016年 第3卷 第1期 页码 25-33 doi: 10.15302/J-FASE-2016090
关键词: harvest index cultivar selection deficit irrigation root water uptake straw mulching
Effects of irrigation and nitrogen management on hybrid maize seed production in north-west China
Hui RAN,Shaozhong KANG,Fusheng LI,Ling TONG,Taisheng DU
《农业科学与工程前沿(英文)》 2016年 第3卷 第1期 页码 55-64 doi: 10.15302/J-FASE-2016091
关键词: yield components biomass partitioning harvest index irrigation nitrogen maize for seed production
Microalgae cultivation and culture medium recycling by a two-stage cultivation system
Xinfeng Wang, Lu Lin, Haifeng Lu, Zhidan Liu, Na Duan, Taili Dong, Hua Xiao, Baoming Li, Pei Xu
《环境科学与工程前沿(英文)》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1078-z
A two-stage system was designed for microalgae cultivation and nutrients removal. Two species of microalgae were cultivated for biomass production. UF costed less than centrifuge for harvesting microalgae at small scale. 100% NH4+ of the wastewater was removed and met discharge requirement.
关键词: Microalgae harvest Ultrafiltration Poultry wastewater Nutrient removal Two stage cultivation
Chen-Kai JIANG, De-Jiang NI, Ming-Zhe YAO, Jian-Qiang MA, Liang CHEN
《农业科学与工程前沿(英文)》 页码 215-230 doi: 10.15302/J-FASE-2021382
关键词: harvest season metabolites tea shoots transcriptomics untargeted metabolomics
标题 作者 时间 类型 操作
One DOF mechanism for the mechanical harvest of vines in an arbor structure and the validation of the
Osvaldo PENISI,José BOCCA,Horacio AGUILAR,Pedro BOCCA
期刊论文
Treatment, residual chlorine and season as factors affecting variability of trihalomethanes in small
Roberta DYCK,Geneviève COOL,Manuel RODRIGUEZ,Rehan SADIQ
期刊论文
Breeding for pre-harvest sprouting resistance in bread wheat under rainfed conditions
Muhammad ZEESHAN, Waheed ARSHAD, Muhammad Imran KHAN, Shiraz ALI, Ali NAWAZ, Amina BATOOL, Muhammad TARIQ, Muhammad Imran AKRAM, Muhammad Amjad ALI
期刊论文
Influence of harvest date on seed yield and quality in forage kochia
Cody F. CREECH, Blair L. WALDRON, Corey V. RAMSOM, Dale R. ZOBELL, Joseph Earl CREECH
期刊论文
Extracts from cotton over the whole growing season induce
Ming LANG, Rui YU, Yongqing MA, Wei ZHANG, Christopher S. P. McErlean
期刊论文
Optimization model analysis of centralized groundwater source heat pump system in heating season
Shilei LU,Yunfang QI,Zhe CAI,Yiran LI
期刊论文
Improving water use efficiency in grain production of winter wheat and summer maize in the North China Plain: a review
Xiying ZHANG,Wenli QIN,Juanna XIE
期刊论文
Effects of irrigation and nitrogen management on hybrid maize seed production in north-west China
Hui RAN,Shaozhong KANG,Fusheng LI,Ling TONG,Taisheng DU
期刊论文
Microalgae cultivation and culture medium recycling by a two-stage cultivation system
Xinfeng Wang, Lu Lin, Haifeng Lu, Zhidan Liu, Na Duan, Taili Dong, Hua Xiao, Baoming Li, Pei Xu
期刊论文