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SOIL CARBON CHECK: A TOOL FOR MONITORING AND GUIDING SOIL CARBON SEQUESTRATION IN FARMER FIELDS
《农业科学与工程前沿(英文)》 2023年 第10卷 第2期 页码 248-261 doi: 10.15302/J-FASE-2023499
● Establishment of a rapid tool for monitoring soil carbon sequestration in farmer fields.
关键词: 4 per 1000 initiative carbon sequestration climate action farmer fields SDG13 soil organic carbon soil testing
《农业科学与工程前沿(英文)》 2023年 第10卷 第1期 页码 135-148 doi: 10.15302/J-FASE-2022464
● The choice of a modern agriculture project was found to be rational for professional farmers to reduce interference from non-market factors. The success of this project is due to its capacity to successfully fill the structural hole in the market transaction network.
关键词: Benefit-linked mechanism featured agriculture organizational integration professional farmers rural cooperative structural hole theory
Simulation of heterogeneous two-phase media using random fields and level sets
George STEFANOU
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 114-120 doi: 10.1007/s11709-014-0267-5
关键词: microstructure random fields level sets shape recovery two-phase media
Gerba LETA, Steffen SCHULZ, Girum GETACHEW ALEMU
《农业科学与工程前沿(英文)》 2020年 第7卷 第4期 页码 427-439 doi: 10.15302/J-FASE-2020331
Agricultural extension is an approach to rural development and agricultural transformation in which training, demonstration and technology transfer are key to reducing rural poverty, ensuring food security, and sustainably managing natural resources. During recent decades, different extension approaches have been tested and validated by the Ethiopian government and non-governmental organizations to stimulate in the agricultural extension system (AES). The most recent was a German-funded project entitled “Integrated Soil Fertility Management Project” (ISFM ), which employed a novel approach to piloting and upscaling proven technology and best practice. The purpose of this study was to analyze and document the modalities of ISFM and illustrate its effects on technology uptake and dissemination. The study used a mixed methods approach to collect data. ATLAS.ti and SPSS were used for data management and analysis. Farmer Research and Extension Groups and Farmer Field Schools were found to be central to the participation process. Also, the ISFM was found to aid technology transfer and helped to increase grain and residue yields as well as farmer livelihoods. Based on these empirical findings, it is argued that the ISFM approach and technology should be integrated and institutionalized in the mainstream AES in order to promote their extensive application.
关键词: Ethiopia Farmer Field School Farmer Research and Extension Group governance institutionalization ISFM+ ambassador participation
NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS
《农业科学与工程前沿(英文)》 2022年 第9卷 第3期 页码 386-395 doi: 10.15302/J-FASE-2022443
● Excessive application of N fertilizers in orchards and vegetable fields (OVFs) in China is particularly common.
关键词: nitrogen fate nitrogen fertilizer orchards vegetable fields
《化学科学与工程前沿(英文)》 2023年 第17卷 第7期 页码 795-797 doi: 10.1007/s11705-023-2336-6
Engineering Fronts in fields of Energy and Electrical Science and Technologies in the report of
《能源前沿(英文)》 2023年 第17卷 第1期 页码 5-8 doi: 10.1007/s11708-023-0868-6
AGRICULTURAL GREEN DEVELOPMENT IN THE ERHAI LAKE BASIN—THE WAY FORWARD
《农业科学与工程前沿(英文)》 2023年 第10卷 第4期 页码 510-517 doi: 10.15302/J-FASE-2023524
Pollution of high-altitude lake basins by agriculture and rural activities, and the control of this pollution, have received increasing attention from academic research and government policy in China. Series of restrictions and regulations have been implemented to protect the surface water quality. These restrictions and regulations have greatly impacted and transformed the agricultural systems and rural livelihoods surrounding these lake basins. Using Erhai Lake basin in Yunnan Province as a case study, three main challenges were identified for concurrently decreasing pollution in the lake and increasing farmer income. It is contended that scientifically-sound environmental protection policies and agricultural green development practices are key to reversing the current situation. This will help to protect the lake from pollution while smallholder farmers will be able to produce healthy food in an environmentally sustainable manner, and with a fair remuneration for all the services farmers provide to the society.
关键词: agriculture farmer income nitrogen phosphorus water pollution
The perturbed magnetic fields caused by mechanical stress
QIN Fei, YAN Dong-mei
《机械工程前沿(英文)》 2006年 第1卷 第2期 页码 151-156 doi: 10.1007/s11465-006-0015-1
Stem cell niches and endogenous electric fields in tissue repair
null
《医学前沿(英文)》 2011年 第5卷 第1期 页码 40-44 doi: 10.1007/s11684-011-0108-z
Adult stem cells are responsible for homeostasis and repair of many tissues. Endogenous adult stem cells reside in certain regions of organs, known as the stem cell niche, which is recognized to have an important role in regulating tissue maintenance and repair. In wound healing and tissue repair, stem cells are mobilized and recruited to the site of wound, and participate in the repair process. Many regulatory factors are involved in the stem cell-based repair process, including stem cell niches and endogenous wound electric fields, which are present at wound tissues and proved to be important in guiding wound healing. Here we briefly review the role of stem cell niches and endogenous electric fields in tissue repair, and hypothesize that endogenous electric fields become part of stem cell niche in the wound site.
Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 121-140 doi: 10.1007/s11709-015-0290-1
关键词: polycrystalline aggregates crystal plasticity random fields spatial variability correlation structure
Extrapolation reconstruction of wind pressure fields on the claddings of high-rise buildings
Yehua SUN, Guquan SONG, Hui LV
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 653-666 doi: 10.1007/s11709-018-0503-5
关键词: extrapolation reconstruction proper orthogonal decomposition Kriging method von Kármán function Hurst exponent rescaled range analysis
周晶,青平
《中国工程科学》 2019年 第21卷 第5期 页码 60-66 doi: 10.15302/J-SSCAE-2019.05.019
提高国产农机装备质量是我国农机制造由大到强的必要条件。本文在总结我国农机装备制造业发展现状和存在问题的基础上,突出实证研究,利用来自华中地区的农户调查数据,从硬件质量、适用性和操作便利性、作业效果三方面考察农户对国产农机装备质量的主观评价。结果显示,农机户对国产大中型农机装备钢材质量、发动机质量、耗油量和故障频率的满意度显著低于非国产品牌;不足一半的农机户对国内外大中型农机装备地块匹配度、驾驶员匹配度、遮阳挡雨效果持满意态度;农户对国产农机装备作业速度、作业无遗漏、节省要素的满意度偏低。立足现状、着眼长远,提出组建关键零部件克难攻坚“国家队”、搭建以企业为主体的长效技术创新体系、抢抓智能化和绿色化农机装备研发、重构高等院校农机学科体系等对策建议。
“化工、冶金与材料领域”课题组
《中国工程科学》 2018年 第20卷 第6期 页码 34-41 doi: 10.15302/J-SSCAE-2018.06.006
化工、冶金与材料工业通过获取自然资源进行再加工,生产人类生活所必需的材料、化学品和二次能源,为人类社会发展和国民经济建设提供了重要的物质基础。本文梳理了化工、冶金与材料领域历史上曾产生过的、公认的具有颠覆性意义的技术,分析了这类技术对人们日常生活、人类社会文明进步的影响和对传统技术的颠覆。并根据愿景驱动、问题导向和世界技术发展趋势,对化工、冶金与材料领域未来高效、安全、节能环保的可持续性科学发展模式,以及有望产生的颠覆性技术对国计民生的影响进行了展望,提出了浆态床渣油加氢转化技术、冶金制造流程功能拓展技术、石墨烯等具有颠覆性意义的技术。最后针对颠覆性技术的培育、发展和所需营造的环境提出了相关政策与建议。
标题 作者 时间 类型 操作
SOIL CARBON CHECK: A TOOL FOR MONITORING AND GUIDING SOIL CARBON SEQUESTRATION IN FARMER FIELDS
期刊论文
ENTREPRENEURIAL OPPORTUNITY, VALUE EVOLUTION, AND ORGANIZATIONAL INTEGRATION OF PROFESSIONAL FARMER ENTREPRENEURSHIP
期刊论文
Agricultural extension approach: evidence from an Integrated Soil Fertility Management Project in Ethiopia
Gerba LETA, Steffen SCHULZ, Girum GETACHEW ALEMU
期刊论文
NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS
期刊论文
Advanced biomass materials: progress in the applications for energy, environmental, and emerging fields
期刊论文
Engineering Fronts in fields of Energy and Electrical Science and Technologies in the report of
期刊论文
Characterization of random stress fields obtained from polycrystalline aggregate calculations using multi-scale
Bruno SUDRET,Hung Xuan DANG,Marc BERVEILLER,Asmahana ZEGHADI,Thierry YALAMAS
期刊论文
Extrapolation reconstruction of wind pressure fields on the claddings of high-rise buildings
Yehua SUN, Guquan SONG, Hui LV
期刊论文