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» Special Issue on Large Animal Stem Cells and Cloning
  2017-06-30
» Special Issue on Agriculture in Arid Areas
  2016-11-25
» Special Issue on Animal Genetics and Breeding
  2016-10-12
» Invitation to Contribute to FASE
  2015-05-12
ISSN 2095-7505 (Print)
ISSN 2095-977X (Online)
CN 10-1204/S
Postal Subscription Code 80-906

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Regulation of NLR stability in plant immunity
Tao WANG, Jiaxin LI, Qian-Hua SHEN
Frontiers of Agricultural Science and Engineering    2019, 6 (2): 97-104.   https://doi.org/10.15302/J-FASE-2018248
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Plant nucleotide binding domain and leucine-rich repeat (NLR) receptors recognize pathogen effectors directly or indirectly and mediate innate immune responses. NLR-mediated immunity also has direct impacts on plant growth and development, as well as yield and survival. The levels of NLR proteins are therefore intricately controlled in plants to balance defense responses and other processes. In recent years, the ubiquitination-26S proteasome system and the HSP90 chaperones have emerged as having key functions in the regulation of NLR stability. The N-end rule pathway of protein degradation is also directly linked to NLR stability. Recent progress in the regulation of NLR stability and turnover is summarized here, focusing on the key components and pathways.

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Highlights for special issue on “Large Animal Stem Cells”
Jianyong HAN
Frontiers of Agricultural Science and Engineering    2019, 6 (1): 1-2.   https://doi.org/10.15302/J-FASE-2019251
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Highlights in precision agriculture
Chunjiang ZHAO, Minzan LI
Frontiers of Agricultural Science and Engineering    2018, 5 (4): 391-392.   https://doi.org/10.15302/J-FASE-2018246
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Highlights in agri-product quality and safety
Guanghong ZHOU
Frontiers of Agricultural Science and Engineering    2018, 5 (3): 289-290.   https://doi.org/10.15302/J-FASE-2018236
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The computational fluid dynamic modeling of downwash flow field for a six-rotor UAV
Yongjun ZHENG, Shenghui YANG, Xingxing LIU, Jie WANG, Tomas NORTON, Jian CHEN, Yu TAN
Frontiers of Agricultural Science and Engineering    2018, 5 (2): 159-167.   https://doi.org/10.15302/J-FASE-2018216
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The downwash flow field of the multi-rotor unmanned aerial vehicle (UAV), formed by propellers during operation, has a significant influence on the deposition, drift and distribution of droplets as well as the spray width of the UAV for plant protection. To study the general characteristics of the distribution of the downwash airflow and simulate the static wind field of multi-rotor UAVs in hovering state, a 3D full-size physical model of JF01-10 six-rotor plant protection UAV was constructed using SolidWorks. The entire flow field surrounding the UAV and the rotation flow fields around the six rotors were established in UG software. The physical model and flow fields were meshed using unstructured tetrahedral elements in ANSYS software. Finally, the downwash flow field of UAV was simulated. With an increased hovering height, the ground effect was reduced and the minimum current velocity increased initially and then decreased. In addition, the spatial proportion of the turbulence occupied decreased. Furthermore, the appropriate operational hovering height for the JF01-10 is considered to be 3 m. These results can be applied to six-rotor plant protection UAVs employed in pesticide spraying and spray width detection.

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Using balance of seasonal herbage supply and demand to inform sustainable grassland management on the Qinghai–Tibetan Plateau
Xinquan ZHAO, Liang ZHAO, Qi LI, Huai CHEN, Huakun ZHOU, Shixiao XU, Quanmin DONG, Gaolin WU, Yixin HE
Frontiers of Agricultural Science and Engineering    2018, 5 (1): 1-8.   https://doi.org/10.15302/J-FASE-2018203
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To mitigate the impacts of grassland degradation on the Qinghai–Tibetan Plateau (QTP), in recent decades China has been implementing large-scale conservation programs and has invested about 42 billion CNY (7 billion USD). However, these programs are faced with major challenges involving trade-offs between ecological function, livestock production and income of pastoralists. Scientific assessments, as well as technical and policy issues, have not fully captured the complex ecological, social and economic dynamics of the challenges facing grassland management on the QTP. Pastoral livestock production on the QTP is characterized by imbalance in both quality and quantity between livestock seasonal nutrient requirements and herbage production, which forces pastoralists to keep larger numbers of livestock for longer periods, leading to overgrazing. To solve these problems, an integrated crop-livestock system is promoted to improve the efficiency of livestock production and conserve natural grassland as well for a sustainable system for the QTP.

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Highlights of special issue on forestry
Shougong ZHANG
Frontiers of Agricultural Science and Engineering    2017, 4 (4): 373-375.   https://doi.org/10.15302/J-FASE-2017188
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Highlights of special issue on Animal Science
Jun REN
Frontiers of Agricultural Science and Engineering    2017, 4 (3): 257-259.   https://doi.org/10.15302/J-FASE-2017165
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Highlights of special issue on ‘Agriculture in Water-Limited Areas’
Pute WU
Frontiers of Agricultural Science and Engineering    2017, 4 (2): 123-125.   https://doi.org/10.15302/J-FASE-2017147
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Delivering food safety
Kaye BASFORD,Richard BENNETT,Joanne DALY,Mary Ann AUGUSTIN,Snow BARLOW,Tony GREGSON,Alice LEE,Deli CHEN,Matt WENHAM
Frontiers of Agricultural Science and Engineering    2017, 4 (1): 1-4.   https://doi.org/10.15302/J-FASE-2016123
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A delegation from the Australian Academy of Technological Sciences and Engineering traveled to Beijing in April 2016 to jointly run a workshop on technology advances in food safety with the Chinese Academy of Engineering. This brief summary from the Australian delegation identifies the pyramid of inter- locking issues which must be addressed to deliver food safety. Systems and technology provide the necessary base, on which culture and then trust can be built to facilitate the delivery of food safety now and in the future.

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