检索范围:
排序: 展示方式:
Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China
Lei LIU, Xiaoming MA
《环境科学与工程前沿(英文)》 2011年 第5卷 第2期 页码 243-254 doi: 10.1007/s11783-010-0276-0
关键词: integrated river basin management (IRBM) model Longgang River basin Shenzhen decentralization stakeholder participation
Control concept and countermeasures for shallow lakes' eutrophication in China
JIN Xiangcan, LU Shaoyong, HU Xiaozhen, JIANG Xia, WU Fengchang
《环境科学与工程前沿(英文)》 2008年 第2卷 第3期 页码 257-266 doi: 10.1007/s11783-008-0063-3
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
姚威 ,胡顺顺 ,牛丰
《中国工程科学》 2019年 第21卷 第4期 页码 111-117 doi: 10.15302/J-SSCAE-2019.04.017
工程科技人文交流是人类改造或创造事物过程中不同科技知识和价值观等思想内容的交流过程,其目的是减少或消除不同国家间工程科技思想隔阂,增进民心相通,确保工程项目的顺利实施。本文从工程科技人文交流的内涵以及企业参与工程科技人文交流的重要意义出发,研究“一带一路”重点建设企业的工程科技人文交流现状,剖析企业参与工程科技人文交流存在的问题,进而对我国企业深度参与工程科技人文交流提出初步的建议。
美国国防部先进研究项目局举办的机器人大挑战赛的参与和崎岖地面行走的滑雪式步态 Article
王宏飞, 李诗濛, 郑元芳
《工程(英文)》 2015年 第1卷 第1期 页码 36-45 doi: 10.15302/J-ENG-2015006
本文简要介绍了美国国防部先进研究项目局举办的机器人大挑战赛的历史,并将关注的焦点放在了2012机器人挑战赛上。作为该挑战赛DRC-HUBO队的成员,我们为完成崎岖地面的任务提出了不同的方法,如增大脚踏板、转换成四足行走等。同时,本文还介绍了一种帮助提高仿人机器人运动稳定性的新步态——滑雪式步态。本文对该步态的稳定性进行了分析,并利用稳定度裕量从两种备选的步进顺序(爬行-1和爬行-2)中进行选择。接下来,本文对滑雪式步态中冗余的闭链系统进行力/力矩分析,通过最小化总耗能量来确定关节力矩。根据稳定性分析和力/力矩分析,我们设计了一种手杖长度,使其可以支撑HUBO2仿人机器人平台稳定地实现爬行-2步态。最后,通过将本文的试验结果和两足步行进行对比,验证了滑雪式步态的可行性。同时,介绍了我队在该机器人挑战赛上的表现。
标题 作者 时间 类型 操作
Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China
Lei LIU, Xiaoming MA
期刊论文
Control concept and countermeasures for shallow lakes' eutrophication in China
JIN Xiangcan, LU Shaoyong, HU Xiaozhen, JIANG Xia, WU Fengchang
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