共搜索到30145条信息，每页显示10条信息，共3015页。用时：0小时0分0秒796毫秒
Extended X-ray Absorption Fine Structure Study of Eu-Doped BaPbO3蔡伟民,冯玉杰,周定,巨新,谢亚宁摘 要:ＥｘｔｅｎｄｅｄＸｒａｙＡｂｓｏｒｐｔｉｏｎＦｉｎｅＳｔｒｕｃｔｕｒｅＳｔｕｄｙｏｆＥｕＤｏｐｅｄＢａＰｂＯ３ＣａｉＷｅｉｍｉｎ(蔡伟民),ＦｅｎｇＹｕｊｉｅ(冯玉杰),ＺｈｏｕＤｉｎｇ(周定)(ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｃａｔｉｏｎＣｈ...关键词:......
scattering cluster (MSC) method has been employed to perform a theo-retical analysis on carbon 1s near edge X-ray absorption fine structure of the deuteronacetylene (C2D2) adsorbed on Si(111)7× 7 at room... 0. 03nm and 0. 02nm respectively whenacetylene was adsorbed on the subtrate. Key words:adsorption of deuteron acetylene on Si(111)7×7; near edge X-ray absorption fine stracture; multiple scattering......
finestructure (SEXAFS). Key words:multiple-scattering cltster. near edge X-ray absorption fine structure; SO2 /Pd(111). D V-Xα method; [全文内容正在添加中] ..., Zhejiang University, Hangzhou 310027, China) Abstract:We have calculated the sulphur 1s near edge X-roy absorption fine structure (NEX-AFS) spectra of SO2 adsorbed on Pd( 111 ) in terms......
......
hydroxide powders was defined as the oil absorption. In addition, scanning electron microscopy (SEM, JEOL, JSM5600) was employed to investigate the grain morphology of samples. The structure characteristics of samples were verified by X-ray diffractometer(XRD), with Cu Kα radiation. 3 Results and discussion 3.1 Phase characteristics and thermal stability of powder samples before and after modification......
. SiO2 was removed using shaking table. X-ray diffraction (XRD) result is shown in Fig. 1. The peaks of any impurity are not detected, which indicates that SnO2 is successfully obtained with high purity...] HU Y, LIU X, XU Z H. Role of crystal structure in flotation separation of diaspore from kaolinite, pyrophyllite and illite [J]. Minerals Engineering, 2003, 16(3): 219-227. [9] WU X Q, ZHU J G......
by reducing FeCl3-NiCl2-GICs in H2. The elemental composition, structure, magnetic and microwave absorption of FeNi/graphite nanocomposites were investigated using X-ray diffraction, energy dispersive... on the composition, structure, the hysteresis loops and electromagnetic parameters of FeNi/graphite nanocomposites were investigated systematically. The microwave absorption properties of FeNi/graphite......
......
The Oxidation State of Sulfur Detected in Na2O-CaO-SiO2 Float Glass by X-ray Absorption Near Edge Structure Spectra孟政1,JIANG Hong2,HUANG Yourong1,LI Changjiu1,WANG Jinzhen1,CUI Zhu11. China Building... glass by synchrotron radiation X-ray absorption near edge structure (XANES) spectra at the sulfur K edge. The measured spectra show the only presence of S6+ in the Na2O-CaO-SiO2 float glass......
description of the relation between sound properties and pore structure and discussion on the sound absorption mechanisms of aluminium foam with super-fine and broad pore size have not be seen yet... that the average values of sound absorption coefficients are all over 0.4 and the aluminum foam has better sound absorption property, its coefficients is influenced by frequency and pore structure......
