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红外椭圆偏振光谱系统     红外  椭圆偏振  光谱系统       2023/9/4
红外椭圆偏振光谱系统。
空间光谱成像辐射计研究集体。
扫描电子显微镜(SEM,简称扫描电镜)是观测物质表面形貌的基础微束分析仪器,具有分辨率高、景深长、样品制备简单等特点,已成为地球和行星科学研究领域最常用的仪器之一。近年来,扫描电镜的空间分辨率已大幅度提升,分辨率优于1纳米,附属硬件的集成(如背散射电子探头、X 射线能谱仪、拉曼光谱等)和软件的开发极大地拓展了扫描电镜的功能,显著提高了人们认知矿物组成和微观结构的能力,促进了固体地球科学、行星科学等...
近日,中国科学院古脊椎动物与古人类研究所汪筱林研究团队的博士研究生李颖等与中国科学院大学人文学院罗武干副教授等共同对天山哈密翼龙(Hamipterus tianshanensis)蛋化石进行研究,发现白色蛋壳的主要成分是氟磷灰石,而非碳酸钙成分,此发现对翼龙蛋研究和保护具有重要意义。论文发表于《遗产科学》(Heritage Science)上。
基于表面增强拉曼光谱(SERS)技术,发展了一种纺织品中染料定性检测的快速方法.以国家明确禁止使用的致癌染料碱性红9(Basicred9)和分散黄23(Disperseyellow23)为模型分子,利用一步法快速制备的银纳米粒子为SERS基底并进行优化.通过在纺织品表面直接滴加银纳米粒子的方法实现了纺织品中染料的快速SERS鉴别.研究结果表明,该方法不需要复杂的样品前处理过程,能够直接实现纺织品中...
基于具有优异表面增强拉曼散射(SERS)性能的石墨烯隔离的金纳米晶(GIAN)能够在水-有机相界面自组装,待测物分子在有机相中的分配系数较大以及GIAN能够通过π?π相互作用与待测物分子结合的优势,构建了激光介导的待测物分子的高效富集策略,进而实现了9,10-双苯乙炔基蒽(BPEA)分子的痕量SERS分析.所构建的新型待测物分子高效富集策略在一定程度上避免了因“咖啡环效应”带来的信号波动,有望为复...
【目的】使用傅里叶变换红外显微光谱(Micro-Fourier transform infrared spectroscopy, micro-FTIR)结合X射线衍射(X-ray diffraction, XRD)方法研究2个不同品系发育中棉纤维的纤维素结晶度(Crystalline index, CI)变化,验证micro-FTIR法测定发育中棉花纤维素CI的可行性,并用此方法对成熟棉花纤维素C...
A significant surge has been observed with the development and research in remote sensing in recent years for hyperspectral applications in Earth observation. Subsequently, the development of software...
The pan-sharpening is a widely used operation in remote sensing image processing, this operation aims at combining an observable high spatial resolution panchromatic image with a multispectral one, to...
The paper proposes a novel pansharpening method based on the pulse-coupled neural network segmentation. In the new method, uniform injection gains of each region are estimated through PCNN segmentatio...
Hyperspectral remote sensing is a completely non-invasive technology for measurement of cultural relics, and has been successfully applied in identification and analysis of pigments of Chinese histori...
Spatial and spectral information are obtained simultaneously by hyperspectral remote sensing. Joint extraction of these information of hyperspectral image is one of most import methods for hyperspectr...
A novel method for detecting ships which aim to make full use of both the spatial and spectral information from hyperspectral images is proposed. Firstly, the band which is high signal-noise ratio in ...
Temporal analysis of Landsat 8 images opens up new opportunities in the unmixing procedure. Although spectral analysis of time series Landsat imagery has its own advantage, it has rarely been studied....
Accurate remote sensing water extraction is one of the primary tasks of watershed ecological environment study. Since the Yanhe water system has typical characteristics of a small water volume and nar...

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