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) was synthesized from dodecyl amine, formic acid and acetic aldehyde. The collecting property of DEN12 on diaspore, kaolinite and illite was investigated by flotation test and infrared spectrum. The results show... at the pulp pH below 8. The measurements of the infrared spectrum approve that the action between aluminosilicates and tertiary amine collector is strong electrostatic adsorption and that of diaspore......
RELATIONSHIP BETWEEN INFRARED RADIATION AND CRYSTAL STRUCTURE IN Fe-Mn-Co-Cu-O SPINELS Y. Zhang1,D.J. Wen1 (1.School of Material Engineering, Soochow University, Suzhou 215021, China) Abstract:Ni3... of thermodynamic principle and crystalline field theory. The microstructure and performance of those are studied by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), and IRE-2 infrared radiant......
Far Infrared Radiation Property of Rare Earth Mineral Composite Materials Xu Gangke1,Liang Jinsheng1,Meng Junping1,Ding Yan1,Wang Lijuan1 (1.Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China) Abstract:Rare earth mineral composite materials were prepared using rare earths and natural far-infrared mineral materials. The influences of rare......
and the average mesoporous pore size increases from 4.172 nm to 8.592 nm. Key words: pillared montmorillonite; X-ray diffraction (XRD); infrared spectrum (IR); nitrogen absorption/desorption; thermal..., Changsha 410083, China) Abstract: Thermal action of the zirconia- and alumina-pillared montmorillonite was investigated by X-ray diffraction, infrared spectroscopy and nitrogen absorption/desorption......
Preparation and infrared emissivities of alkali metal doped ZnO powdersLI Hui-hui(李会会), HUANG Yun-xia(黄云霞), LI Zhi-min(李智敏), YAO Yin-hua(姚银华), ZHANG Shu-yuan(张淑媛) (School of Advanced Materials... time. Effects of holding time and K sources on the infrared emissivity of ZnO were investigated. The structure and surface morphologies of samples were characterized by X-ray diffraction (XRD......
(2017)11-2966-06 Design of infrared and laser band compatible camouflage structure based on photonic crystals YI Yi, DENG Lianwen, LUO Heng, LIU Sheng, HE Jun, ZHANG Xuejun, HE Longhui, HUANG..., and the possibility of compatible camouflage of the wide band infrared and laser was discussed. Furthermore, the omni-directional band-gap diagram of the composite photonic crystal structure under TE or TM wave......
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to transform to A12O(OH)62-. Key words: aluminate ions; structural changes; infrared spectrum; thermal history 1 Introduction Sodium aluminate solution is an important carrier of alumina in alumina production..., and then their infrared spectra were collected immediately by the coating method after the solution being cooled abruptly. The infrared spectrum of the solution after keeping at a constant temperature......
Determination of Substitutional Carbon in SI-GaAs Thin Wafers by Infrared Microscope何秀坤,王琴,汝琼娜,李光平摘 要:<正> Determination of substitutional carbon... with simple treatment.The calculation method of carbon concen-tration is in agreement with that for normal IR spectrum with 0.5 cm-1resolution.The resolution of1 cm-1can be taken in order to obtain......
Fig.2 Near infrared spectrum original spectra of printed matter 为了消除高频随机噪声及样本不均导致的基线漂移的影响,采用OPUS 软件对原始光谱进行预处理.首先,采用卷积分平滑法(Savity-golay smoothing),选用平滑窗口为7,滤除高频噪音；再对光谱进行多元散射校正(MSC)处理,消除光程及色块差异引起的基线漂移[19].图3所示为处理后的近红外光谱曲线,可以看出,由于色块不均产生的在垂直方向的基线漂移基本被消除. 图3 近红外光谱预处理后曲线 Fig.3 Near infrared spectrum after S-G smoothing and MSC 3.2 建模及预测 偏最小二乘法本质上是一种基于特征变量的回归方法,在多元校正中得到广泛应用......
