Self assembled monolayers(SAMs) based on a novel dendron thiols system, which maintain the alkanethiols active site, but the —SH group connected with independently variable groups by a dendron linker, showed the co...Self assembled monolayers(SAMs) based on a novel dendron thiols system, which maintain the alkanethiols active site, but the —SH group connected with independently variable groups by a dendron linker, showed the controllable surface pattern and wetting property. The precisely tailored structure of dendron thiols with local controlled hydrophobic and hydrophilic peripheries allow the formation of designed surface structures on gold surface, e.g. nano stripes, honeycomb and homogeneous structure.展开更多
"实践九号"(SJ-9)卫星是中国新技术试验卫星系列规划中的首发星,其中A星搭载的光学成像有效载荷技术试验项目为高分辨率多光谱相机,其图像数据将应用于国土资源调查与监测、农林业、环境保护、防灾减灾等领域,满足用户对高分..."实践九号"(SJ-9)卫星是中国新技术试验卫星系列规划中的首发星,其中A星搭载的光学成像有效载荷技术试验项目为高分辨率多光谱相机,其图像数据将应用于国土资源调查与监测、农林业、环境保护、防灾减灾等领域,满足用户对高分辨率数据的需求。目前,遥感数据地面处理主要使用美国学者提出的调制传递函数补偿方法,而该文使用了中国科学家自主提出的直接解调成像方法处理"实践九号"A卫星全色谱段的遥感图像。通过分析处理前后的敦煌靶标和法国靶标的调制传递函数(Modulation Transfer Function,MTF)和点扩散函数,认为经直接解调成像方法处理后的图像清晰度和MTF有明显提高,达到了国际上同类遥感图像处理方法的先进水平。展开更多
文摘Self assembled monolayers(SAMs) based on a novel dendron thiols system, which maintain the alkanethiols active site, but the —SH group connected with independently variable groups by a dendron linker, showed the controllable surface pattern and wetting property. The precisely tailored structure of dendron thiols with local controlled hydrophobic and hydrophilic peripheries allow the formation of designed surface structures on gold surface, e.g. nano stripes, honeycomb and homogeneous structure.
文摘"实践九号"(SJ-9)卫星是中国新技术试验卫星系列规划中的首发星,其中A星搭载的光学成像有效载荷技术试验项目为高分辨率多光谱相机,其图像数据将应用于国土资源调查与监测、农林业、环境保护、防灾减灾等领域,满足用户对高分辨率数据的需求。目前,遥感数据地面处理主要使用美国学者提出的调制传递函数补偿方法,而该文使用了中国科学家自主提出的直接解调成像方法处理"实践九号"A卫星全色谱段的遥感图像。通过分析处理前后的敦煌靶标和法国靶标的调制传递函数(Modulation Transfer Function,MTF)和点扩散函数,认为经直接解调成像方法处理后的图像清晰度和MTF有明显提高,达到了国际上同类遥感图像处理方法的先进水平。
