农业农村信息化是农业农村现代化的战略制高点,是带动农业增效与农民增收的先导力量与重要引擎。以2000—2021年中国知网和Web of Science核心合集数据库中的585篇文章作为数据集,使用知识图谱软件CiteSpace对国内外农业农村信息化的研...农业农村信息化是农业农村现代化的战略制高点,是带动农业增效与农民增收的先导力量与重要引擎。以2000—2021年中国知网和Web of Science核心合集数据库中的585篇文章作为数据集,使用知识图谱软件CiteSpace对国内外农业农村信息化的研究现状进行分析。结果表明,国内外在农业农村信息化领域年度发文数量总体呈递增趋势。中国在该领域的发文量最高达84篇。美国在该领域的影响力最高,其中介中心性为0.35。国内外均形成3个主要由科研院所和高校构成的核心研究团队。国内研究热点是信息化、乡村振兴、数字乡村等方面。国际的研究热点是影响、气候变化、农业、保护等方面。国内研究前沿是乡村振兴、数字农业,国际的研究前沿是生产率、系统、决定因素。展开更多
The natural hydrophobicity of surfaces can be enhanced if they are microtextured due to air trapped in the structure, which provides the deposited drop with a composite surface made of solid and air on which it is res...The natural hydrophobicity of surfaces can be enhanced if they are microtextured due to air trapped in the structure, which provides the deposited drop with a composite surface made of solid and air on which it is rest. Here, a series of grating microstructure surfaces with different parameters have been designed and fabricated by a novel soft lithography. The water contact angles （WCA） on these rough surfaces are measured through optical contact angle meter. The results indicate that all the WCA on the surfaces with grating microstructures are up to 150~; WCA increases and the hydrophobic performance also enhances with the decrease of the ridge width under the other fixed parameter condition; Experimental data obtained basically consists with the Cassie＇s theoretical prediction. The effects of geometric parameters of the microstructures on wettability of the grating sufaces are investigated.展开更多
文摘农业农村信息化是农业农村现代化的战略制高点,是带动农业增效与农民增收的先导力量与重要引擎。以2000—2021年中国知网和Web of Science核心合集数据库中的585篇文章作为数据集,使用知识图谱软件CiteSpace对国内外农业农村信息化的研究现状进行分析。结果表明,国内外在农业农村信息化领域年度发文数量总体呈递增趋势。中国在该领域的发文量最高达84篇。美国在该领域的影响力最高,其中介中心性为0.35。国内外均形成3个主要由科研院所和高校构成的核心研究团队。国内研究热点是信息化、乡村振兴、数字乡村等方面。国际的研究热点是影响、气候变化、农业、保护等方面。国内研究前沿是乡村振兴、数字农业,国际的研究前沿是生产率、系统、决定因素。
基金the National Natural Science Foundation of China (No. 51065009)the Science Fund Project of Jiangxi Provincial Department of Education (No. GJJ11095)
文摘The natural hydrophobicity of surfaces can be enhanced if they are microtextured due to air trapped in the structure, which provides the deposited drop with a composite surface made of solid and air on which it is rest. Here, a series of grating microstructure surfaces with different parameters have been designed and fabricated by a novel soft lithography. The water contact angles （WCA） on these rough surfaces are measured through optical contact angle meter. The results indicate that all the WCA on the surfaces with grating microstructures are up to 150~; WCA increases and the hydrophobic performance also enhances with the decrease of the ridge width under the other fixed parameter condition; Experimental data obtained basically consists with the Cassie＇s theoretical prediction. The effects of geometric parameters of the microstructures on wettability of the grating sufaces are investigated.
