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Comparison of droplet distributions from fluidic and impact sprinklers
Xingye ZHU,Shouqi YUAN,Junping LIU,Xingfa LIU
《农业科学与工程前沿(英文)》 2015年 第2卷 第1期 页码 53-59 doi: 10.15302/J-FASE-2015049
关键词: outside signal sprinkler fluidic sprinkler impact sprinkler sprinkler irrigation droplet size droplet velocity
Pt–C interactions in carbon-supported Pt-based electrocatalysts
《化学科学与工程前沿(英文)》 2023年 第17卷 第11期 页码 1677-1697 doi: 10.1007/s11705-023-2300-5
关键词: Pt–C interactions Pt-based materials carbon support electrocatalysis
Jinying YIN, Linhua LIU
《能源前沿(英文)》 2011年 第5卷 第2期 页码 166-173 doi: 10.1007/s11708-010-0105-y
关键词: radiation heat transfer particle polydispersion liquid droplet radiator phase change
Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)
Nathan HOWELL, Weihua LI
《机械工程前沿(英文)》 2010年 第5卷 第4期 页码 376-388 doi: 10.1007/s11465-010-0104-z
关键词: electrowetting-on-dielectrics (EWOD) electrowetting microfluidics droplet translocation droplet fission Flow3D dielectric constant
Dynamical analysis of droplet impact spreading on solid substrate
Zhaomiao LIU, Huamin LIU, Xin LIU,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 308-315 doi: 10.1007/s11465-010-0020-2
Jingtao WANG, Jin ZHANG, Junjie HAN,
《化学科学与工程前沿(英文)》 2010年 第4卷 第1期 页码 26-36 doi: 10.1007/s11705-009-0292-4
关键词: core-shell monodisperse nucleation Microfluidic different technical
Numerical study of droplet dynamics impinging onto steel plate covered with scale layer
Jan BOHá?EK, Ale? HORáK
《机械工程前沿(英文)》 2010年 第5卷 第4期 页码 389-398 doi: 10.1007/s11465-010-0108-8
关键词: hydraulic descaling scale rolling water-hammer descaling theory
Responses of microbial interactions to elevated salinity in activated sludge microbial community
《环境科学与工程前沿(英文)》 2023年 第17卷 第5期 doi: 10.1007/s11783-023-1660-x
● Salinity led to the elevation of NAR over 99.72%.
关键词: Elevated salinity Activated sludge system Pollution removal Microbial interactions Competitive relationship
Weixiang YAO, Xianju WANG, Yubin LAN, Ji JIN
《农业科学与工程前沿(英文)》 2018年 第5卷 第4期 页码 455-461 doi: 10.15302/J-FASE-2018232
Prewetting process can reduce the contact angle between the droplet and the leaf blade, so that the droplet can more easily wet and spread, thereby increasing the quantity of deposition. To improve the effectiveness of pesticides on cotton leaves, prewetting by single-rotor electric unmanned aerial vehicles (UAV) was studied, focusing on the effects of pesticide deposition on cotton leaves during the flowering period. Cotton leaves in 0°–30°, 30°–60°, 60°–90° leaf blade angle ranges (angle between the leaf blade and the horizontal plane) were examined. In the first experiment, four different prewetting volumes (0, 1.6, 3.2 and 4.8 L) were sprayed by a single-rotor electric UAV on four cotton plots (plots A to D) each with an area of 120 m , and then each area was sprayed with a 0.8% (w/v) ponceau 2R solution by another single-rotor electric UAV. The results revealed that with no prewetting, droplet deposition quantity decreased with increasing leaf blade inclination. After prewetting, the mean droplet deposition quantity on plots B, C and D increased by 39.8%, 9.7% and 24.9%, respectively. The prewetting rate of 1.6 L per 120 m had the most significant effect on improving the deposition of droplets. It was also found that the mean droplet deposition quantity in each leaf blade angle range increased after prewetting. For the leaf blade angle range 60° to 90°, this increase was the most pronounced, with 0.043, 0.062, 0.057 and 0.048 L·cm in plots A–D, respectively. Also, droplet deposition uniformity in the leaf blade angle range 60°–90° was better after prewetting. These results should provide a valuable reference for future research and practice to improve the effectiveness of pesticides applied to cotton by aerial applications.
关键词: aerial spray cotton deposition flowering period leaf angle prewetting UAV
Water, energy and food interactions–Challenges and opportunities
Gustaf OLSSON
《环境科学与工程前沿(英文)》 2013年 第7卷 第5期 页码 787-793 doi: 10.1007/s11783-013-0526-z
关键词: water security energy security food security water-energy nexus water conflicts
Microfluidics for cell-cell interactions: A review
Rui Li,Xuefei Lv,Xingjian Zhang,Omer Saeed,Yulin Deng
《化学科学与工程前沿(英文)》 2016年 第10卷 第1期 页码 90-98 doi: 10.1007/s11705-015-1550-2
关键词: microfluidic chip co-culture cell-cell interactions review
《农业科学与工程前沿(英文)》 2022年 第9卷 第2期 页码 167-169 doi: 10.15302/J-FASE-2022446
Intensive agriculture, characterized by strong reliance on excessive amount of external agrochemical inputs in simplified cropping systems has contributed successfully to feeding an increasing number of humans, but at the expense of severe resource and environmental costs. Consequently, the Earth is facing multifaceted challenges, including increasing food demand both in quantity and quality, global warming associated with extreme weather events, soil degradation and depletion of natural resources. To address some of these challenges, we have developed this Special Issue on Sustainable Crop and Pasture Systems for Frontiers of Agricultural Sciences and Engineering (FASE). The issue addresses the research frontiers of two main themes: (1) aboveground-belowground ecological and physiological mechanisms, processes and ecosystem functions; and (2) the synergies and trade-offs between multiple ecosystem services in sustainable crop and pasture systems. There are 10 articles in this Special Issue including review and research articles with contributions from Australia, China, France, the Netherlands, and the UK. The contributors are all highly-regarded scientists devoted to studies on mechanisms and applications of sustainable crop and pasture systems.
Sustainable crop and pasture systems have a potential to enhance the synergies in multiple ecosystem services, consisting of higher food production, lower environmental impacts and climate change mitigation. To innovate sustainable cropping systems requires deeper and comprehensive understanding of mechanisms underlying above- and belowground interactions. Hans Lambers and Wen-Feng Cong emphasized the importance of diversifying crop species or genotypes with complementary or facilitative functional traits. This will mediate key ecosystem processes related to water, carbon and nutrients, contributing to higher resource-use efficiency and enhancing synergies in ecosystem services ( https://doi.org/10.15302/J-FASE-2022444). Root functional traits such as root exudates are pivotal in nutrient mobilization, either directly mobilizing plant nutrients in the soil or indirectly so via modifications of the soil microbiome. Cathryn A. O'Sullivan and coworkers reported a novel role of root exudates from canola in inhibiting nitrification in soils. They found that these root exudates (called biological nitrogen (N) inhibitors) can significantly reduce nitrification rates of both Nitrosospira multiformis cultures and native nitrifying communities in soil. This would reduce nitrate losses, but increase plant N uptake and microbial N immobilization, subsequently benefiting the following cereal crops through mineralization of this organic N pool ( https://doi.org/10.15302/J-FASE-2021421). Jonathan Storkey and Andrew J. Macdonald used the longest-lasting grassland biodiversity experiment in the world to examine the relationships between plant functional traits and ecosystem services. They reported a strong trade-off between plots with high productivity, N inputs and soil organic carbon and plots with a large number of plant species with contrasting nutrient-acquisition strategies. An increasing proportion of forbs with greater longevity and lower leaf dry matter content can partly mitigate the trade-offs between plant diversity and productivity ( https://doi.org/10.15302/J-FASE-2021438).
John A. Raven further explored synergies or trade-offs of ecosystem services regulated by above- and belowground interactions, mainly functioning through energy, material and information pathways. Solar energy is the key driver for photosynthesis and transpiration, modulating the flow of water and nutrients in soils moving aboveground and the flow of carbohydrates feeding belowground biota. Information transfer can be through hydraulic, electrical and chemical signaling, regulating plant development, abiotic and biotic damage and resource excess and limitation ( https://doi.org/10.15302/J-FASE-2021433).
Timothy S. George and coauthors highlighted the importance of harnessing biodiversity principles and physiological mechanisms in diversified cropping systems to achieve agricultural sustainability. They demonstrate that crop diversification combined with optimized management such as minimum tillage and reduced fertilizer inputs can improve soil quality, promoting soil biotic activities and associated functions. This will reduce the reliance on agrochemical inputs and environmental impacts, and increase climatic resilience ( https://doi.org/10.15302/J-FASE-2021437). Ruqiang Zhang and coworkers applied the One Health concept to design healthy dairy farms. They employed a wide range of soil and plant diversity measures such as intercropping, crop rotation and flower strips at both field and landscape scales to reduce the inputs of fertilizers, pesticides as well as soil compaction caused by heavy machines. The biodiversity-based solutions can help dairy farmers maintain a healthy eco-environment, while producing high-quality milk ( https://doi.org/10.15302/J-FASE-2022445). Emily C. Cooledge and her colleagues show that introducing multispecies leys with perennial legumes and other forbs into arable rotations will achieve multiple ecosystem benefits. This occurs mainly in three ways—return of livestock manure, permanent soil cover and less disturbance of soil—which promote soil food web interactions and soil aggregate stability, subsequently sequestering more carbon in soils ( https://doi.org/10.15302/J-FASE-2021439). Ting Luo and coauthors used the sugarcane cropping system in China as an example and analyzed the current challenges and problems and proposed a wide range of crop, soil and input management practices such as crop rotation, strategic tillage and optimized nutrient management to achieve sustainable sugarcane cropping systems ( https://doi.org/10.15302/J-FASE-2022442).
Focusing on the multi-objective assessment of different cropping systems, Léa Kervroëdan and coworkers assessed the agronomic and environmental impacts of food, feed and mixed (food, feed and biogas) cropping systems. They found that mixed cropping systems had a greater potential of bioenergy production and agronomic performance, but also higher greenhouse gas emissions. This warrants long-term examination of whether short-term higher greenhouse gas emissions can be offset by long-term soil carbon sequestration in this system ( https://doi.org/10.15302/J-FASE-2021435). Jeroen C. J. Groot and Xiaolin Yang applied a new mathematical approach of evolutionary multi-objective optimization to 30 cropping systems practiced on the North China Plain with the aim of overcoming the trade-offs between revenues, energy and nutrient supply and groundwater depletion at a regional level. This approach allows national or regional policymakers to plan growing area of certain sustainable cropping systems ( https://doi.org/10.15302/J-FASE-2021434).
As the Guest Editors, we thank all authors and reviewers for their valuable contributions to this Special Issue on Sustainable Crop and Pasture Systems. We also thank the FASE editorial team for their professional support.
Dr. Wen-Feng Cong, Associate Professor at College of Resource and Environmental Sciences, China Agricultural University. He obtained his PhD at Wageningen University in the Netherlands and conducted postdoctoral research at Aarhus University in Denmark. His research focuses on understanding the mechanisms underlying the positive effects of crop, genotype and cropping system diversity on soil carbon sequestration and soil phosphorus utilization, and applying the ecological mechanisms to design sustainable diversified cropping systems. He is author of over 30 papers in peer-reviewed scientific journals, including Trends in Plant Science, Trends in Ecology & Evolution, and Global Change Biology. He is leading or participating in sustainable cropping systems related projects funded by the National Natural Science Foundation of China and the Chinese Academy of Engineering. He is acting as a member of the editorial board of Frontiers in Agronomyand Frontiers in Soil Science.
Dr. Hans Lambers, Emeritus Professor at the University of Western Australia and Distinguished Professor at College of Resource and Environmental Sciences, China Agricultural University. He obtained his PhD at the University of Groningen in the Netherlands and conducted postdoctoral research in Australia and the Netherlands, before taking up a position of Professor of Plant Ecophysiology at Utrecht University in the Netherlands and then Professor of Plant Biology and Ecology at the University of Western Australia in Australia. His research focuses on understanding plant–soil interactions and plant nutrition, with an emphasis on Australian plants and crop legumes. He is author of over 550 papers in peer-reviewed scientific journals, including Annual Review of Plant Biology,Trends in Plant Science, Trends in Ecology & Evolution, New Phytologist, Plant and Soil,Global Change Biology, andNature Plants. He is leading or participating in projects on plant nutrition funded by the Australian Research Council. He is the lead author of an influential textbook, Plant Physiological Ecology (1998, 2008, and 2019), Editor in Chief of Plant and Soil(1992–present), and Associate Editor in Chief ofFrontiers of Agricultural Sciences and Engineering
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
《农业科学与工程前沿(英文)》 2021年 第8卷 第3期 页码 387-399 doi: 10.15302/J-FASE-2021414
Modern agriculture needs to develop transition pathways toward agroecological, resilient and sustainable farming systems. One key pathway for such agroecological intensification is the diversification of cropping systems using intercropping and notably cereal-grain legume mixtures. Such mixtures or intercrops have the potential to increase and stabilize yields and improve cereal grain protein concentration in comparison to sole crops. Species mixtures are complex and the 4C approach is both a pedagogical and scientific way to represent the combination of four joint effects of Competition, Complementarity, Cooperation, and Compensation as processes or effects occurring simultaneously and dynamically between species over the whole cropping cycle. Competition is when plants have fairly similar requirements for abiotic resources in space and time, the result of all processes that occur when one species has a greater ability to use limiting resources (e.g., nutrients, water, space, light) than others. Complementarity is when plants grown together have different requirements for abiotic resources in space, time or form. Cooperation is when the modification of the environment by one species is beneficial to the other(s). Compensation is when the failure of one species is compensated by the other(s) because they differ in their sensitivity to abiotic stress. The 4C approach allows to assess the performance of arable intercropping versus classical sole cropping through understanding the use of abiotic resources.
关键词: compensation competition complementarity cooperation interspecific interactions land equivalent ratio light nutrients species mixtures water
Qiaomei RU, Younghee CHO, Qingrong HUANG,
《化学科学与工程前沿(英文)》 2009年 第3卷 第4期 页码 399-406 doi: 10.1007/s11705-009-0253-y
标题 作者 时间 类型 操作
A CFD study of the transport and fate of airborne droplets in a ventilated office: The role of droplet−droplet interactions
期刊论文
Comparison of droplet distributions from fluidic and impact sprinklers
Xingye ZHU,Shouqi YUAN,Junping LIU,Xingfa LIU
期刊论文
Analysis of the radiation heat transfer process of phase change for a liquid droplet radiator in space
Jinying YIN, Linhua LIU
期刊论文
Modeling and simulation of droplet translocation and fission by electrowetting-on-dielectrics (EWOD)
Nathan HOWELL, Weihua LI
期刊论文
Dynamical analysis of droplet impact spreading on solid substrate
Zhaomiao LIU, Huamin LIU, Xin LIU,
期刊论文
Synthesis of crystals and particles by crystallization and polymerization in droplet-based microfluidic
Jingtao WANG, Jin ZHANG, Junjie HAN,
期刊论文
Numerical study of droplet dynamics impinging onto steel plate covered with scale layer
Jan BOHá?EK, Ale? HORáK
期刊论文
Responses of microbial interactions to elevated salinity in activated sludge microbial community
期刊论文
Effect of UAV prewetting application during the flowering period of cotton on pesticide droplet deposition
Weixiang YAO, Xianju WANG, Yubin LAN, Ji JIN
期刊论文
Microfluidics for cell-cell interactions: A review
Rui Li,Xuefei Lv,Xingjian Zhang,Omer Saeed,Yulin Deng
期刊论文
SUSTAINABLE CROP AND PASTURE SYSTEMS: FROM ABOVE- AND BELOWGROUND INTERACTIONS TO ECOSYSTEM MULTIFUNCTIONALITY
期刊论文
THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY
期刊论文