Contents
2018
Volume: 38 Issue 7
54 Article(s)

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Study of the Effect of Interference during Multi-Wire GMAW Based on Spectral Diagnosis Technique
XU Chen, HUA Xue-ming, YE Ding-jian, MA Xiao-li, LI Fang, and HUANG Ye
During the multi-wire GMAW, the working state of the arc will become unstable because of the arcs interference, which will affect the stability of welding process and welding quality. In this paper, the distribution of the electron temperature of the arc have been researched based on Boltzmann spectrometry. Electron de
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 1993 (2018)
Computation of Equilibrium Compositions of GMAW Arc Plasmas and Its Applications in Spectroscopy
WANG Fei, LI Huan, YANG Ke, TEULET Philippe, and CRESSAULT Yann
This article is devoted to the computation of equilibrium compositions of the shielding gases in gas metal arc welding (GMAW) Ar, CO2, and 82%Ar-18%CO2 as well as their mixtures with Fe metal vapour at atmospheric pressure between 3 000 and 25 000 K. The above gases were treated as a type of Ar-CO2-Fe mixture with 39 p
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 1998 (2018)
Influence of Doping Co Amount on the Crystal Structure Characteristics and Light Absorption Properties of Nano-Micrometer Pyrite Prepared by Thermal Sulfide Method
HUANG Fei, YANG Duo, MENG Lin, LI Yong-li, YAN Ying-can, LIU Kai-jun, and ZHANG Bao-yun
Transition metal sulfide pyrite is a kind of excellent photovoltaic material, doping modification is an important mean to improve the properties of pyrite PV. To explore the impact of Co-doped amount on pyrite crystal structure and light absorption performance, nano-micron-sized pyrite samples were prepared via thermal
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2004 (2018)
Investigation on Characteristics of Edible Oil Spectra with Terahertz Time-Domain Attenuated Total Reflection Spectroscopy
NIE Mei-tong, XU De-gang, WANG Yu-ye, TANG Long-huang, HE Yi-xin, LIU Hong-xiang, and YAO Jian-quan
Edible oil is a significant source of human nutrition and energy, providing essential fatty acids for human body. Thus, the investigation on the optical properties of edible oils in THz region for component analysis and quality evaluation is considered to be of great importance. As a newly developed-technique, Terahert
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2016 (2018)
Nondestructive Techniques in the Research and Preservation of Cultural Relics
LING Xue, WU Meng-lei, LIAO Yuan, and ZHOU Yi-chen
The extraction and research of cultural relic’s information played an important role in revealing the historical information of human society and culture. We could not only understand the ancient technological features to explore the origin and development process of cultural relics making technology, but also carry ou
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2026 (2018)
Spectrum Properties of Mechanoluminescent Materials Sr2SiO4∶Eu, Dy
ZHENG Sheng-hui, FU Xiao-jun, LIU Ya-nan, FU Xiao-yan, and ZHANG Hong-wu
The mechanoluminescence (ML) materials Sr2SiO4∶Eu, Dy were prepared by high temperature solid-state reaction method. The luminescent and mechanoluminescent properties of Sr2SiO4∶Eu, Dy with differentDy3+ concentrations have been investigated. The results showed that α and β phases of Sr2SiO4 co-existed for the low dope
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2032 (2018)
Multispectral-Based Particle Image Velocimetry
HU Wen-bin, MA Zhi-min, TIAN Meng, ZHAO Xiao-hong, and HU Xiang-yang
Time-resolved particle image velocimetry (TR-PIV) is a widely used non-intrusive flow visualization technique that allows the acquisition of instantaneous flow fields in a planar cross section of a flow. In order to refine the instantaneous spatial structure and study the evolution of a flow, a multispectral-based PIV
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2038 (2018)
Electrocatalytic Generation and Spectroscopic Investigation of Reactive Oxygen Species in Alkaline Media
XUE Yu-dong, ZHENG Shi-li, ZHANG Yi, and JIN Wei
Liquid oxidation techniques by sub-molten salt media for the effective extraction of amphoteric metal from refractory minerals have been developed. An innovative synergistic process by electrochemical oxidation and reactive oxygen species (ROS) intensify was further proposed. In the present study, the mechanism of ROS
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2044 (2018)
Study on Temperature Correction Method of CO2 Measurement by TDLAS
LI Zheng-hui, YAO Shun-chun, LU Wei-ye, ZHU Xiao-rui, ZOU Li-chang, LI Yue-sheng, and LU Zhi-min
Tunable diode laser absorption spectroscopy (TDLAS) is often used to detect CO2 concentrations in many fields. But because of the variation of ambient temperature, the measured the line strength and line-shape are affected and may lead to the monitoring errors. Therefore, in order to overcome the influence of temperatu
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2048 (2018)
The Analysis of the Colored Paintings from the Yanxi Hall in the Forbidden City
LIU Lu-yao, ZHANG Bing-jian, YANG Hong, and ZHANG Qiong
The Forbidden City in Beijing is the world’s largest and most complete preserved ancient wooden structure buildings. 2016 has witnessed its fisrt restoration since its extablishment one handred years ago. The Yanxi Hall, which has a large area of colored paintings, is an exquisite hall in the rear of the Yangxin Hall a
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2054 (2018)
Theoretical Study of Structures, Stabilities, and Infrared Spectra of the Alkali-Metal (Li2F)nM (M=Li, Na, K; n=1, 2) Clusters
LI Xiao-jun, HE Xian-li, and SONG Rui-juan
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2064 (2018)
Infrared Spectroscopic Study on the Structure Evolution of Low Rank Coal and Its Correlation with Carbon Isotope of Alkane Gas in Pyrolysis Process
JIAN Kuo, LIU Shun-xi, CHEN Yi-lin, and FU Xue-hai
In order to elucidate the relationship between structure evolution and carbon isotope of alkane gas in coal pyrolysis process, we selected low rank coal to carry out pyrolysis experiments in autoclave closed system. The carbon isotopic composition of alkane gas was analyzed, and the evolution of coal structure was stud
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2070 (2018)
Quantitative Analysis of Structure Changes on Refined Coal Tar Pitch with Curve-Fitted of FTIR Spectrum in Thermal Conversion Process
ZHU Ya-ming, ZHAO Xue-fei, GAO Li-juan, and CHENG Jun-xia
Refined coal tar pitch (QI<0.2%) was used as the raw materials to produce coal-based needle coke. The quality of coal-based needle coke was decided by the thermal conversion properties of refined coal tar pitch. In this study, FTIR spectrum combined with curve-fitted method were used to quantitative analysis the struct
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2076 (2018)
FTIR Spectral Characteristics of Rice Plant Growing in Mercury Contaminated Soil
HU Hua-ling, LI Meng, HE Xiao-song, XI Bei-dou, ZHANG Hui, LI Dan, HUANG Cai-hong, and TAN Wen-bing
Soilmercury (Hg) contamination may affect the growth of rice plant and rice quality. However, little information has been available so far on the effect of Hg pollution on the molecular structure of nutrientcomponents in rice by Fourier transform-infrared spectroscopy(FT-IR). This study aimed to detect the effect of so
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2081 (2018)
Structural Characteristics of Mineral-Microbial Residues Formed by Microbial Utilization of Lignin Joined with Fe, Al, Mn-Oxides Based on FT-IR and SEM Techniques
WANG Shuai, XU Jun-ping, WANG Nan, LEI Wan-ying, FAN Xi-yan, and DOU Sen
The Fe, Al, Mn oxides play an important role in the catalytic action of lignin being transformed into HS. In order to elucidate the relationship among the microorganism-lignin-Fe, Al, Mn oxides effectively and reveal the structural characteristics of mineral-microbial residues, the culture method of liquid shake flask
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2086 (2018)
Characteristic Variables Optimization for TVB-N in Pork Based on Two-Dimensional Correlation Spectroscopy
WANG Wen-xiu, PENG Yan-kun, FANG Xiao-qian, and BU Xiao-pu
In order to investigate the feasibility of two-dimensional (2D) visible/near-infrared (Vis/NIR) spectroscopy method to optimize the characteristic variables of total volatile basic nitrogen (TVB-N) in pork, storage time was employed as external disturbance and 2D correlation spectral characteristics of pork samples wit
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2094 (2018)
A Method Based on Thermal Infrared Spectrum for Analysis of SiO2 Content in Anshan-Type Iron
WANG Dong, LIU Shan-jun, MAO Ya-chun, WANG Yue, and LI Tian-zi
The SiO2 content of iron is an essential index to control and measure the quality of iron ore. It is important to determine the method of mineral processing and the process of ore blending. The traditional method of SiO2 content measurement has the defects of heavy workload, complex operations and long period,thus it i
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2101 (2018)
Coal Classification Based on Visible, Near-Infrared Spectroscopy and CNN-ELM Algorithm
LE Ba Tuan, XIAO Dong, MAO Ya-chun, SONG Liang, HE Da-kuo, and LIU Shan-jun
Coal serves as the main energy in industrial field, the quality of which has a decisive effect on industry and environment. In the using process of coal, if the category of the coal fails to be identified correctly, it will result in great harm to production efficiency, environmental pollution and economical loss. The
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2107 (2018)
Discrimination of Common Wild Mushrooms by FTIR and Two-Dimensional Correlation Infrared Spectroscopy
MA Dian-xu, LIU Gang, OU Quan-hong, YU Hai-chao, LI Hui-mei, and SHI You-ming
Fourier Transform Infrared Spectroscopy combined with correlation analysis, second derivative infrared spectroscopy and two-dimensional correlation infrared spectroscopy was used to discriminate 13 species of wild mushrooms. The results showed that the general characteristics of absorption bands in the original spectra
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2113 (2018)
Infrared Spectroscopic Characteristics of Borneo and Madagascar Copal Resins and Rapid Identification between Them and Ambers with Similar Appearances
DAI Li-li, SHI Guang-hai, YUAN Ye, WANG Mei-li, and WANG Yan
Derived from ancient plants, ambers are the natural fossilized resins undergone a variety of geological reworking. Copal resins of lesser age and lower maturity are similar in appearance to ambers but semi-fossilized. Both copal resins and ambers are the products of fossilized processes of natural resins, and the chemi
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2123 (2018)
Monitoring of Grape Decay via Its Volatiles Based on Open-Path Fourier Transform Infrared Spectroscopy
WANG Jie-jun, CHEN Jia, YE Song, and DONG Da-ming
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2132 (2018)
Study on Cell Wall Deconstruction of Pinus Massoniana during Dilute Acid Pretreatment with Confocal Raman Microscopy
CHEN Sheng, ZHANG Xun, and XU Feng
Dilute acid pretreatment (DAP) is an attractive method to overcome the natural recalcitrance of lignocellulosic materials, the enzymatic conversion of which can be improved significantly. Therefore, lignocellulosic biomass can be converted to biofuels with a higher efficiency. However, the mechanism of cell wall decons
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2136 (2018)
Microstructure and Raman Spectra Characteristics of Dinosaur Eggs from Qiyunshan, Anhui Province
HE Qing, JIANG Qin, XING Li-da, AN Yan-fei, HOU Jie, and HU Yi
The dinosaur eggs from Qiyunshan, Anhui Province, are the newly discovery which can provide new information for researching the formation mechanisms of dinosaur eggshell. Polarizing microscope and Laser Raman spectroscopy were used to analyze the inner mineral composition and structure characteristics of Qiyunshan dino
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2143 (2018)
The Study of Polarization Characteristics of Ultraviolet Light Scattering from Chebyshev Haze Particles
ZHAO Tai-fei, WANG Chan, LENG Yu-xin, and SONG Peng
Haze has seriously affected the people’s daily life. By detecting the polarization information of the scattered ultraviolet light of haze particles, the causes of haze can be effectively analyzed. Small-scale surface roughness is a morphological feature that is obtained from mineral and dust particles in haze, therefor
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2149 (2018)
Effect of Anions on Spectral Properties of DOM from Secondary Sewage of Municipal Wastewater
YANG Yi, ZHENG Zhen-ze, MA Xin-pei, HAN Li-yuan, HU Min, and XU Hui-ning
This study investigated how the anions had the effect on the spectral characteristics of dissolved organic matter (DOM) of secondary effluent from municipal wastewater treatment by using three-dimensional fluorescence spectroscopy and UV spectrophotometry in order to provide the data foundation for DOM’s environmental
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2157 (2018)
Research on Vinegar Brand Traceability Based on Three-Dimensional Fluorescence Spectra and Quaternion Principal Component Analysis
TAN Ai-ling, WANG Si-yuan, ZHAO Yong, ZHOU Kun-peng, and LU Zhang-jian
A new method was put forward to study vinegar brand traceability based onthree-dimensional fluorescence spectra technology combined with quaternion principal component analysis. Firstly, the three-dimensional fluorescence spectral data of vinegar samples with different brands were acquired by F7000 fluorescence spectro
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2163 (2018)
4,4’-Bipyridine Bridged Chain Zn(Ⅱ) Complex: Synthesis, Crystal Structure and Fluorescence Sensitization for Tb (Ⅲ) Ion
SU Ya-jing, FAN Ting-ting, ZHANG Mei-na, and LI Xia
A metal-organic framework [Zn (3,4’-Hdpdc)2(4,4’-bpy)] (Zn-MOF) has been synthesized by hydrothermal reaction with the Zn(NO3)2·6H2O, 3,4’-biphenyl dicarboxylic acid (3,4’-H2dpdc) and 4,4’-bipyridine (4,4’-bpy) , and its crystal structure was confirmed by X-ray single crystal diffraction. The complex was the monoc
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2170 (2018)
Discrimination of Winter Jujube’s Maturity Using Hyperspectral Technique Combined with Characteristic Wavelength and Spectral Indices
CAO Xiao-feng, REN Hui-ru, LI Xing-zhi, YU Ke-qiang, and SU Bao-feng
In order to provide theoretical guidance for the grading of winter jujube maturity after harvesting, this study applied hyperspectral technique to obtain the characteristic wavelengths and calculate the spectral indices to achieve its maturity visualsort. A total of 336 samples of jujube with three types of maturity (i
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2175 (2018)
Tomato Maturity Classification Based on Spatially Resolved Spectra
HUANG Yu-ping, Renfu Lu, QI Chao, and CHEN Kun-jie
A multichannel hyperspectral imaging probe with 30 optic fibers covering the wavelength range of 550~1 650 nm and the light source-detector distances of 1.5~36 mm was recently developed for property and quality assessment of food products. Spatially resolved spectra were acquired using the new developed multichannel pr
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2183 (2018)
Study of Synthesis and Spectral Property of Europium Cryptate
SUN Yan-wen, CHANG Yu, JIN Yu-fen, XIE Wen-bing, CHANG Jing, YU Ting, and PAN Li-hua
Synthesis of rare-earth chelate is a key part of homogeneous time-resolved fluorescence immunoassay. To synthesize optimal rare-earth chelate, we select diethyl 2,6-dibromomethyl-3,5-pyridinecarboxylate as raw material and optimally synthesize Li+2,6-{N,N’,N,N’-[bis(2,2’-bipyridine-6,6’-dimethyl)] bis(aminomethyl)}-py
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2189 (2018)
Optimization of Determination of CO2-3 and HCO-3 in Boron-Containing Brine
CHEN Jing, PENG Jiao-yu, BIAN Shao-ju, GAO Dan-dan, DONG Ya-ping, and LI Wu
Basingthe titration to analyze the total boron, total alkalinityand made references to the determination of serum bicarbonate, we have developed a new method by combining UV spectrophotometry and titration to determine CO2-3 and HCO-3 values accurately in boron-containing brine. The effects of spectrophotometric reacti
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2194 (2018)
Differentiation and Level Monitoring of Corn Leaf Stressed by Cu and Pb Derived from Spatial Spectrum
YANG Ke-ming, ZHANG Wei, WANG Xiao-feng, SUN Tong-tong, and CHENG Long
Identifying and monitoring the heavy metal pollution information of crops isthe research focus by hyperspectral remote sensing technology today. The potted corn experiments were set up with different Cu2+ and Pb2+ stress gradients in this research, measuring the spectral data, the content of heavy metals icon and chlor
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2200 (2018)
Prediction for Soil Water Content Based on Variable Preferred and Extreme Learning Machine Algorithm
CAI Liang-hong, and DING Jian-li
The rapid estimation of soil moisture content (SMC) is of great significance to precision agriculture in arid areas, and hyperspectral remote sensing technology had been widely used in the estimation of soil moisture content due to its non-destructive, rapid, and high spectral resolution characteristics. Meanwhile, the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2209 (2018)
Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau
Tian Yuansheng, Zhang Yue, Sun Wenyi, Mu Xingmin, Gao Peng, and Zhao Guangju
The study on spectral characteristics of biological soil crust in the water-wind erosion crisscross region in the Loess Plateau has important scientific value for the identification of biological soil crust based on remote sensing technology at regional scale, also provides important technical support for estimating th
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2215 (2018)
Spectroscopic Characteristics of Hydrophilic/Hydrophobic Fractions of Natural Organic Matters at Various Critical Retention Factors
MU Si-tu, LIU Chun, WANG Shu, FAN Hui-ju, HAN Bing-jun, and XIAO Kang
Adsorption resin chromatography obtains wide application in characterizing the distribution of hydrophilic/hydrophobic fractions in natural organic matters. As a basic parameter of chromatography, the critical retention factor has a potential impact on results of adsorption and separation. In this study, water samples
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2221 (2018)
The Classification of Delinted Cottonseeds Varieties by Fusing Image Information Based on Hyperspectral Image Technology
HUANG Di-yun, LI Jing-bin, YOU Jia, and KAN Za
Study on identification of seed varieties is an important means of ensuring seed quality. The paper uses hyperspectral image technology and fusing image feature to identify different varieties of delinted cottonseeds. Hyperspectral image data (400~1000nm) of 4 types a total of 240 delinted cottonseeds samples were acqu
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2227 (2018)
Study on Monitoring of Common Diseases of Crops Based on Hyperspectral Technology
XIE Ya-ping, CHEN Feng-nong, ZHANG Jing-cheng, ZHOU Bin, WANG Hai-jiang, and WU Kai-hua
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2233 (2018)
Test the Performances of Different Color Matching Functions with the Method of Comparison
HUANG Min, HE Rui-li, SHI Chun-jie, SHI Bing-jie, and LIU Hao-xue
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2241 (2018)
Effect on Soil DOM Content and Structure Characteristics in Different Soil Layers by Long-Term Fertilizations
XIE Jun, ZHAO Ya-nan, CHEN Xuan-jing, WANG Ke, XU Chun-li, LI Dan-ping, ZHANG Yue-qiang, WANG Ding-yong, and SHI Xiao-jun
National Monitoring Station of Soil Fertility as a research platform was used combined with UV-Visible absorption spectroscopy to explore how the following fertilizer application: (1) CK (non-fertilization); (2)NPK (applied chemical nitrogen, phosphorus and potassium); (3) NPKS (chemical nitrogen, phosphorus and potass
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2250 (2018)
Improvement of Convex Optimization Baseline Correction in Laser-Induced Breakdown Spectral Quantitative Analysis
KE Ke, L Yong, and YI Can-can
In the laser-induced breakdown spectroscopy (LIBS) quantitative analysis technique, the baseline is an important part of the LIBS signal. Due to the fluctuation of laser energy and inhomogeneity of sample surfaces, the phenomenon of plasma emission line drift is obvious. Thus, baseline correction is an essential part d
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2256 (2018)
Application of CNN in LIF Fluorescence Spectrum Image Recognition of Mine Water Inrush
ZHOU Meng-ran, LAI Wen-hao, WANG Ya, HU Feng, LI Da-tong, and WANG Rui
Rapid identification of mine water inrush has great significance for mine safety production. The identification method of laser induced fluorescence(LIF) in mine water inrush requires to pretreat and characterizing the spectral curve is complicated. Therefore, a method to quickly identify the type of mine water inrush
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2262 (2018)
Characterization and Determination of Gold Nanoparticles by SP-ICP-MS
SUN Chuan-qiang, GONG Zi-shan, WANG Xiao-jun, YANG Ru, JIANG Xue-hui, and WANG Yan
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2267 (2018)
Experimental Study on the Treatment of Mercury Contained Soil by
FAN Hua, YAO Gao-yang, LIU Wei, XING Zi-hui, SHI Jin-ming, GAO Bai, and CHEN Yang
In this paper, we selected the Wanshan mercury mine soil as the research object, processed and studied by thermal analysis of low temperature plasma, By study of temperature, time, additives and other process parameters on mercury removal rate and treatment after Mercury, we analysed and compared the process on the mer
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2279 (2018)
On-Line Determination of Light-Rare Earth Distribution by Energy Dispersive-X-Ray Fluorescence
CHEN Ji-wen, XU Tao, LIU Wei, FANG Zhe, QU Hua-yang, LIANG Yuan, HU Xue-qiang, and LIU Ming-bo
Separating a single rare earth element (REE) from the rare-earth concentrate is a continuous process, in which the artificial sampling - ICP laboratory analysis is usually used for process monitoring and control. The results of the test lag behind the actual production and may lead to problems such as the instability o
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2284 (2018)
Quantitative Analysis of Mineral Composition in Granite Regolith Based on XRD-Rietveld Full-Spectrum Fitting Method
FU Wei, PENG Zhao, ZENG Xiang-wei, QIN Jian-xun, LI Xue-biao, LAI Sheng, LI Xiao-ting, and ZHANG Yin-meng
XRD-Rietveld full-spectrum fitting method broke through many technical limitations of traditional XRD quantitative analyses and is of great significance in solving the quantitative problem of multi-phase mineral system. Our efforts in this study focused on a comparative study on two granite weathering profiles (A and B
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2290 (2018)
Study of Mineral Structure Transformation of Coal Ash with High Ash Melting Temperature by XPS
WU Cheng-li, WANG Bei-bei, TAO Ran, FANG Liu-wei, and LI Han-xu
The ash melting temperature of X coal with high ash melting temperature was reduced by adding calcium-magnesium compound flux (WCaO/WMgO=1). In the process of simulated coal gasification, the ash and slag were prepared, and the existence form and evolution process of oxygen, silicon, aluminum, calcium, magnesium at dif
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2296 (2018)
Study on Composite Activating Mechanism of Alkali Steel Slag Cementations Materials by XRD and FTIR
ZHANG Hao, WANG Lin, and LONG Hong-ming
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2302 (2018)
A Processing Method for Low SNR Repetitive Observation Spectrum
LIU Yuan-yuan, CHEN Jian-jun, QIU Bo, FAN Xiao-dong, WEI Shi-ya, SONG Tao, and DUAN Fu-qing
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2311 (2018)
Research on Polarization Spectrum Imaging System Based on Orthogonal Modulation
WU Jin-hui, YU Jun-zhi, LIU Han-qi, and WANG Gao
In order to obtain the complete polarized two-dimensional image information and its spectrum information at the same time, a new polarized spectrum imaging system based on orthogonal modulation is designed. The system consists of optical antenna, phase modulator, Wollaston prism, Savart polarizer, analyzer and imaging
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2315 (2018)
Resonance Spectral Characteristic and Refractive Index Sensing Mechanism of Surface Coated Waveguide Grating
CHEN Ying, ZHAO Zhi-yong, HE Lei, HAN Shuai-tao, ZHU Qi-guang, ZHAI Ying-jian, and LI Shao-hua
Based on the resonance principle of waveguide grating and Goos-Hnchen displacement theory, a refractive index sensing model of surface coated waveguide grating is proposed, and the resonance spectral characteristics are analyzed. In addition, the resonance spectral characteristics are optimized by coating the polymer
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 38, Issue 7, 2320 (2018)