Contents
2015
Volume: 35 Issue 3
56 Article(s)

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Laser Tuning Performance Testing and Optimization in TDLAS Oxygen Measuring Systems
Jun-feng HE, Jun HU, Rui-feng KAN, Zhen-yu XU, and Tao WANG
TDLAS (tunable diode laser absorption spectroscopy) technology, with its unmatched advantages such as high selectivity molecular spectra, fast response, high sensitivity, non-contact measuring, become the preferred scheme for combustion process diagnosis, and can be effectively used for oxygen measuring. DFB (distribut
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 577 (2015)
Study on the Low Temperature Photoluminescence Spectra of Ⅱ-Ⅵ Group Telluride Bulk Crystals
Ya-dong XU, Hang LIU, Yi-hui HE, Yan ZHOU, and Wan-qi JIE
The dominant point defects in Ⅱ-Ⅵ group telluride bulk crystals grown from melt usually varied due to different growth conditions and cooling history, in turn affect the electrical and optical behaviors of corresponding single crystals and devices. Low temperature photoluminescence (PL) spectra acts as a contact-less a
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 582 (2015)
Influence of Argon Content on Plasma Temperature of Single Filament in Dielectric Barrier Discharge
Hong-yan FU, Li-fang DONG, and Yang ZHAO
The single filament (also referred to as monofilament) which composed of two parts including the center spot and the outer halo is observed and researched for the first time in dielectric barrier discharge, which filled with gas-mixture of argon and air. The pictures taken from the experiment show that the diameter of
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 591 (2015)
Research on L-Ascorbic Acid and Thiamine Based on Wide-Band Terahertz Spectroscopy Technique
Chun LI, Miao LI, and Ling JIANG
We employed terahertz time-domain spectra (THz-TDS) and Fourier transform infrared spectra (FTIR) to measure the terahertz spectroscopy of L-ascorbic acid and thiamine in the frequency region ranging from 0.10 to 3.50 THz. Molecular models of two vitamins have been shown, and based on above two spectroscopies, we compa
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 595 (2015)
Research on Application of Fourier Transform Infrared Spectrometry in the Diagnosis of Lymph Node Metastasis in Gastric Cancer
Yue-kui BAI, Li-wei YU, Le ZHANG, Jing FU, Hui LENG, Xiao-jun YANG, Jun-qiang MA, Xiao-juan LI, Xiu-juan LI, Qing ZHU, Yuan-fu ZHANG, Xiao-feng LING, and Wen-lan CAO
To explore the feasibility of quick intraoperative in situ and noninvasive diagnosis of lymph node metastasis in gastric cancer by Fourier transform infrared (FTIR) spectrometry. FTIR spectra of surgically removed fresh lymph nodes were measured by FTIR via probe of attenuated total reflection (ATR). For each spectrum,
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 599 (2015)
Infrared Spectrum Studies of Hydrocarbon Generation and Structure Evolution of Peat Samples During Pyrolysis and Microbial Degradation
Yuan BAO, Yi-wen JU, Chong-tao WEI, Chao-yong WANG, and Xiao-shi LI
Hydrocarbon generation and structural evolution would be occurred in the process of from coal-forming material (i.e. peat sample) transforming to the coal. While Fourier Transform Infrared Spectroscopy (FTIR) have a special advantages in analyzing molecular structure of samples. For understanding the characteristics of
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 603 (2015)
Establishment and Application of Model for Determining Oil Content of Cottonseed Using Near Infrared Spectroscopy
Lian-guang SHANG, Jun-hui LI, Yu-mei WANG, Yu-hua LI, Dan WANG, Min XIONG, and Jin-ping HUA
Cotton is one of the important oil crops, and it is great significance for screening and identification of breeding materials to establish a method of the rapid, nondestructive testing of cotton seed oil content. In this study, near-infrared diffuse reflection spectroscopy of 118 high and low oil materials were adopted
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 609 (2015)
Study on Archaeological Lime Powders from Taosi and Yinxu Sites by FTIR
Guo-feng WEI, Chen ZHANG, Guo-liang CHEN, Yu-ling HE, Jiang-tao GAO, and Bing-jian ZHANG
Archaeological lime powders samples from Taosi and Yinxu sites, natural limestone and experimentally prepared lime mortar were investigated by means of Fourier transform infrared spectrometry (FTIR) to identify the raw material of lime powders from Taosi and Yinxu sites. Results show that ν2/ν4 ratio of calcite resulte
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 613 (2015)
The Interaction of Oil Microcapsule Wall Materials between Whey Protein and Acacia
Yan SHI, Ru-yi LI, Hui WANG, Qian LI, De-jun LI, and Zong-cai TU
The interaction between whey protein and acacia which were used as wall material was studied on the formation of the oils microcapsules by the FTIR Spectroscopy and Computer Aided Analysis. The results indicated that whey protein changed obviously in amide A and amideⅠ by high pressured homogenization and spray-drying.
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 617 (2015)
Quality Analysis of Peanut Seed by Visible/Near-Infrared Spectra
Tian-tian ZHENG, Teng-fei SUN, Zeng-hui CAO, and Jun ZHANG
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 622 (2015)
Determination of Carbon Dioxide in Refined Titanium Tetrachloride by Infrared Spectroscopy
Guang-lin SONG, Yun-jun LUO, Jin-qing LI, and Hong TAN
Refined TiCl4 is the key procedure in producing titanium sponge. Besides, the content of carbon and oxygen (C and O) impurities in titanium sponge and that of C and O impurities in refined TiCl4 presents the 4-times enrichment relationship. Therefore, the content control of the C and O impurities in refined TiCl4 becom
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 626 (2015)
Infrared Spectra Characteristics of the Silicate Nickel Ores: A Comparison Study on Different Ore Samples from Indonesia and China
Meng-li YANG, Wei FU, Bao-hua WANG, Ya-qian ZHANG, Xiao-rong HUANG, and Hu-jie NIU
The silicate nickel ores developed in the lateritic nickel deposit, from Kolonodale, Sulawesi Island, Indonesia, and Yuanjiang, Yunnan province, China, were selected for the present study. The X-ray diffraction and Fourier infrared spectra were used to analyze the mineralogical attribute of laterite nickel ores from tw
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 631 (2015)
Effect on Fermi Resonance by Some External Fields: Investigation of Fermi Resonance According to Raman Spectra
Xiu-lan JIANG, Cheng-lin SUN, Mi ZHOU, Dong-fei LI, Zhi-wei MEN, Zuo-wei LI, and Shu-qin GAO
Fermi resonance is a phenomenon of molecular vibrational coupling and energy transfer occurred between different groups of a single molecule or neighboring molecules. Many properties of Fermi resonance under different external fields, the investigation method of Raman spectroscopy as well as the application of Fermi re
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 635 (2015)
Raman Spectroscopy Measurement System of Dual Wavelength Laser Module
Xian-guang FAN, Fan LI, Xin WANG, Ying-jie XU, Yong-ming ZENG, and Qi-zhen CHEN
Fluorescence interference is one of common interference factors during detection of Raman spectroscopy, while shifted-excitation Raman difference spectroscopy (SERDS) is an effective detection means to reject it. SERDS excites the test substance by two laser with different wavelengths, then difference the obtained Rama
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 640 (2015)
Raman Signal Enhancement for Gas Detection Using a Near Concentric Cavity
De-wang YANG, Jin-jia GUO, Zeng-feng DU, Zhen-nan WANG, and Rong-er ZHENG
The detection of dissolved gases in seawater plays an important role in ocean observation and exploration. Raman spectroscopy has a great advantage in simultaneous multiple species detection and is thus regarded as a favorable choice for ocean application. However, its sensitivity remains insufficient, and a demand in
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 645 (2015)
Feasibility Study on Quantitative Analysis of Sulfide Concentration and pH of Marine Sediment Pore Water via Raman Spectroscopy
Zhi-xian TIAN, Xin ZHANG, Chang-ling LIU, Qing-guo MENG, and Jun YAN
Marine sediment pore water is one of the important objects in the study of global environmental change, marine geology and biogeochemistry. Anoxic pore water in highly reducing deep-sea sediments commonly contains a large amount of dissolved sulfide (H2S and HS-). The sulfide species within sediment pore water are sign
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 649 (2015)
Studies on Effect of Alkali Pretreatment on Anaerobic Digestion of Rice Straw with Confocal Raman Microscopy
Yi-hua XIA, Liu-bin LUO, Xiao-li LI, Yong HE, and Kui-chuan SHENG
NaOH pretreatment is a convenient and effective method which is widely used in rice straw anaerobic digestion. But the mechanism of the alkaline (NaOH) hydrolysis of biopolymers compositions and polymeric cross-linked network structures of rice straw cell wall need further study. This paper firstly studied the effect a
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 657 (2015)
The Influence of Runoff Pollution to DOM Features in an Urban Wastewater Treatment Plant
Li HE, Fang-ying JI, Ming-sheng LAI, Xuan XU, Wei-wei ZHOU, Bo-lin MAO, and Ming-jia YANG
Combined with wastewater treatment process, the sewage in sunny and rainy day was collected from a wastewater treatment plant in Chongqing. Three-dimensional fluorescence spectra was used to investigate the characteristic fluorescence of dissolved organic matter (DOM). DOM dissolved organic carbon (DOC), chemical oxyge
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 663 (2015)
Secondary Alterations Influence on Fluorescence Color and Spectral Parameters of Crude Oil and Oil Inclusion
Ao SU, Hong-han CHEN, and Hong-wei PING
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 668 (2015)
Quantum Chemistry Calculation of Ponceau 4R Molecule Structure and Research on the Fluorescence Mechanism
Chun ZHU, Yong ZHANG, Jian-chun WU, Tuo ZHU, and Guo-qing CHEN
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 674 (2015)
Investigation on Inhibitory Capacities of Seventeen Herbal Extracts on Oxidative Stress using Ultraviolet and Fluorescence Spectroscopy
Guang-yue HOU, Zhong ZHENG, Feng-rui SONG, Zhi-qiang LIU, and Bing ZHAO
Diabetic patients usually suffer from complications and the long-term secondary complications are the main cause of morbidity and mortality. The hyperglycemia-induced oxidative stress is one of the important pathogenesis of diabetic complications, while the oxidative stress is associated with the lipid peroxidation rea
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 680 (2015)
A Fluorescent Chemical Sensor Based on MgAl-8-HQ LDH Composite Particle for the Selective Detection of Fe3+
Lei YANG, Qi YAO, Xue-hua YUAN, and Yan-ling YANG
In order to achieve the highly selective and Simple detection for ferric ion, strong-fluorescent 8-hydroxyquinoline(8-HQ) Mg-Al layered double hydroxide(MgχAl-8-HQ LDH) was designed and prepared by 8-HQ’s intercalation and ready coordination based on adjustment of Al3+ on Mg-Al layered double hydroxides(MgAl LDH) lamin
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 684 (2015)
Rapid Identification of Cistanche via Fluorescence Spectrum Imaging Technology Combined with Principal Components Analysis and Fisher Distinction
Yuan-peng LI, Fu-rong HUANG, Jia DONG, Chi XIAO, Rui-yi XIAN, Zhi-guo MA, and Jing ZHAO
In order to explore rapid reliable Hebra cistanche detection methods, identification of 3 different sources of Hebra cistanche: cistanche deserticola, cistanche tubulosa, sand rossia is studied via fluorescent spectral imaging technology combined with pattern recognition. It is found in experiment that cistanche sample
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 689 (2015)
Contrastive Research of the Y3Al5O12:Ce3+ Yellow Phosphors Prepared by Different Methods
Zhao LI, Xi-cheng ZHAO, Li-jun CHEN, Yuan-ru JIANG, and Lei LUO
Ce3+ doped Y3Al5O12∶Ce3+ yellow phosphors are prepared by the high-temperature solid-state method, sol-gel method and hydrothermal-pyrolysis methods. The influences of the preparation methods on the phase, morphology and photoluminescence properties of the YAG∶Ce3+ yellow phosphors are investigated by XRD, FESEM and PL
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 695 (2015)
The Effect of Observation Geometry on Polarized Skylight Spectrum
Ren-bin ZHANG, Ling-mei WANG, Jun GAO, and Chi WANG
Study on polarized skylight spectral characters while observation geometry changing in different solar zenith angles (SZA), viewing zenith angles (VZA) or relative azimuth angles (RAA). Simulation calculation of cloudless daylight polarimetric spectrum is realized based on the solver, vector discrete ordinate method, o
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 700 (2015)
Study on Chemical Kinetic Effect of Dielectric Barrier Discharge Plasma
Peng ZHANG, Yan-ji HONG, Shuang-yan SHEN, Xiao-yu DING, and Di MA
To reveal the mechanism of plasma (assisted the ignition process of methane/air further, schematic of dielectric barrier discharge plasma system with atmospheric air was designed and set up, the emission spectrum of dielectric barrier discharge plasma with atmospheric air was measured, and the active particles produced
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 706 (2015)
Effect of Helium on Diamond Films Deposited Using Microwave PCVD
Wei CAO, Zhi-bin MA, Li-ping TAO, Pan GAO, Yi-cheng LI, and Qiu-ming FU
Optical emission spectroscopy (OES) was used to in situ diagnose the CH4-H2-He plasma in order to know the effect of helium on the diamond growth by microwave plasma chemical vapor deposition (MPCVD). The spatial distribution of radicals in the plasma as a function of helium addition was studied. The diamond films depo
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 711 (2015)
Estimation and Visualization of Nitrogen Content in Citrus Canopy Based on Two Band Vegetation Index (TBVI)
Qiao-nan WANG, Xu-jun YE, Jin-meng LI, Yu-zhao XIAO, and Yong HE
Nitrogen is a necessary and important element for the growth and development of fruit orchards. Timely, accurate and nondestructive monitoring of nitrogen status in fruit orchards would help maintain the fruit quality and efficient production of the orchard, and mitigate the pollution of water resources caused by exces
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 715 (2015)
Optical Constants Determination of Zinc Selenide by Inversing Transmittance Spectrogram Transmittance Spectra Measurement and Thermal Radiative Physical Parameters Inversion of Diesel Fuel
Dong LI, Han-bing QI, and Guo-zhong WU
A novel inversion method of optical constants of diesel fuel that is one of semitransparent liquid was developed based on spectral transmittance radio inversion calculation of optical cell with glass-liquid fuel-glass configuration, which was validated by measured the optical constants of water. The measurements of tra
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 719 (2015)
Monitoring of Crack Propagation in Repaired Structures Based on Characteristics of FBG Sensors Reflecting Spectra
Shen-fang YUAN, Xin JIN, Lei QIU, and Hong-mei HUANG
In order to improve the security of aircraft repaired structures, a method of crack propagation monitoring in repaired structures is put forward basing on characteristics of Fiber Bragg Grating(FBG) reflecting spectra in this article. With the cyclic loading effecting on repaired structure, cracks propagate, while non-
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 724 (2015)
Mixed-Spectral Spatial Information Decomposition Model of Water Hyperspectral Inversion
Bang-long PAN, Xian-hua WANG, Jin ZHU, Wei-ning YI, and Ting-yong FANG
The effect of Mixed-hyperspectral in the water is difficult in quantitative remote sensing of water. Studies have shown that the only scalar spectrum information is difficult to solve the problem of complex mixed spectra of water. Besides the spectral information, spatial distribution of information is one of the obvio
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 734 (2015)
Estimating Biomass Burned Areas from Multispectral Dataset Detected by Multiple-Satellite
Chao YU, Liang-fu CHEN, Shen-shen LI, Jin-hua TAO, and Lin SU
Biomass burning makes up an important part of both trace gases and particulate matter emissions, which can efficiently degrade air quality and reduce visibility, destabilize the global climate system at regional to global scales. Burned area is one of the primary parameters necessary to estimate emissions, and consider
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 739 (2015)
Application of Hyperspectral Imaging for Visualization of Nitrogen Content in Pepper Leaf with Different Positions
Ke-qiang YU, Yan-ru ZHAO, Xiao-li LI, Xi-bin DING, Zai-chun ZHUANG, and Yong HE
In order to estimate pepper plant growth rapidly and accurately, hyperspectral imaging technology combined with chemometrics methods were employed to realize visualization of nitrogen content (NC) distribution. First, pepper leaves were picked up with the leaf number based on different leaf positions, and hyperspectral
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 746 (2015)
Review of Extraordinary Optical Transmission: Theory and Application in Biochemical Analysis
Long TU, Wen-hui WANG, and Zhi-chang QIU
Extraordinary optical transmission (EOT) has attracted increasing attention from researchers around the world since its discovery in 1998. In attempt to interpret this abnormal phenomenon caused by nano-hole array structures, the majority of academia take the theory of surface plasmon resonance as the main reason, thou
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 751 (2015)
Determination of Silicon in Gasoline by Directly Measuring under Organic Phase Using Inductively Coupled Plasma Optical Emission Spectroscopy
Wen-mei ZHANG, Huan WEN, Huan-ming LV, Hui-qin LIU, Zhi-sheng LIN, and Rong-hua WANG
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 760 (2015)
Experimental Study of Coaxial Cylinder Dielectric Barrier Discharge in Ar/NH3 Mixtures under the Atmosphere-Pressure
Yan-qin LI, De-cai BU, Lan-bo DI, Xiu-ling ZHANG, Zhi-sheng LIU, and Xue-hui LI
An atmosphere-pressure Dielectric Barrier Discharge in Ar/NH3 mixtures between cylinder electrodes is studied by Optical Emission Spectroscopy and the main particles of atmosphere-pressure Ar/NH3 DBD plasma are NH, N, N+, N2, Ar, Hα and OH. NH is decomposition products of NH3, and NH(c1Π) and NH(A3Π) are two kinds of e
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 765 (2015)
A Study on Quantitative Evaluation of Damage in Conservation of Ceramics from HuaguangjiaoⅠShipwreck with ICP-AES
Wen-jing LI, Yue CHEN, Nai-sheng LI, Bin LI, and Wu-gan LUO
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 772 (2015)
Determination of Acid-Insoluble Aluminum Content in Steel by Laser-Induced Breakdown Spectroscopy
Chun YANG, Yun-hai JIA, and Yong ZHANG
Laser-induced breakdown spectroscopy (LIBS) has become a very attractive and popular chemical analysis technique in material science for its advantage of rapid analysis, non-contact measurement, micro surface analysis and online analysis. In this paper, LIBS were used to determine insoluble aluminum content by analyzin
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 777 (2015)
Quantitative Analysis of Copper Impurity in Silver Jewellery by Laser-Ablation Laser-Induced Breakdown Spectroscopy
Yu-qi CHEN, Jun-yu MO, Qi ZHOU, Yang LOU, and Run-hua LI
High spectral analysis sensitivity can be achieved with orthogonal dual-wavelength dual-pulse laser-ablation laser-induced breakdown spectroscopy under minimal sample ablation. Therefore, the contradiction between spatial resolution and analytical sensitivity existed in single-pulse laser-induced breakdown spectroscopy
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 782 (2015)
Experimental Conditions of Laser Induced Breakdown Spectroscopy of Metal Elements in Cement
Rui-wen WANG, Zhan-feng LI, Zhi-xiang WU, Wen-hong LI, and Li-ping SHANG
Laser induced breakdown spectroscopy (LIBS) is a widely used material element detection technology. Because of its detection result is affected by many factors, and therefore, analysing and comparising the different experimental conditions have important significance for LIBS. Experimental sample produced by Beichuan C
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 787 (2015)
The Emission Spectroscopy of Nitrogen Discharge under Low Voltage at Room Temperature
Li-hua SHEN, Chun-xia YU, Bei YAN, and Cheng-xiao ZHANG
A set of direct current(DC) discharge device of N2 plasma was developed, carbon nanotubes(CNT) modified ITO electrode was used as anode, aluminum plate as cathode, with ~80 μm separation between them. Nitrogen emission spectra was observed at room temperature and low DC voltage (less than 150 V), and the emission spect
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 791 (2015)
In Situ Analysis of Element Geochemistry in Submarine Basalt in Hydrothermal Areas from Ultraslow Spreading Southwest Indian Ridge
Yan WANG, Xiao-ming SUN, Li XU, Ye-heng LIANG, Zhong-wei WU, Yu FU, and Yi HUANG
In this study, we analyze element geochemistry of submarine basalt in situ, which is sampled in hydrothermal areas from ultraslow spreading Southwest Indian Ridge, including the fresh basalt rocks (B19-9, B15-13) and altered basalt (B5-2). And we can confirm that altered mineral in B5-2 is celadonite by microscope and
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 796 (2015)
Mineral Spectrum Change Analysis under the Conditions of Different Particle Size
Yan-xia WANG, Jian WU, Liang-guang ZHOU, Lan-gong HOU, Dong WANG, and Min CAO
Mineral particle size is an important factor affecting mineral spectrum characteristics, so to explore the changes of the mineral spectrum curves under different particle sizes and the spectrum difference of different minerals under the same particle size are the keys of hyperspectral remote sensing information mineral
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 803 (2015)
Evaluation of Field Portable X-Ray Fluorescence Performance for the Analysis of Ni in Soil
Guo-dong DU, Mei LEI, Guang-dong ZHOU, Tong-bin CHEN, and Rong-liang QIU
As a rapid, in-situ analysis method, Field portable X-ray fluorescence spectrometry (FP-XRF) can be widely applied in soil heavy metals analysis field. Whereas, some factors may affect FP-XRF performance and restrict the application. Studies have proved that FP-XRF has poorer performance when the concentration of targe
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 809 (2015)
Comporison Sduty of Microstructure by Metallographicalk on the Polarized Light and Texture by XRD of CC 5083 and CC 5182 Aluminium Alloy after Cold Rolling and Recrystallization
Ming-biao CHEN, Yong-wei LI, Yuan-biao TAN, Min MA, Xue-min WANG, and Wen-chang LIU
At present the study of relation between microstructure,texture and performance of CC 5083 aluminium alloy after cold tolling and recrystallization processes is still finitude. So that the use of the CC 5083 aluminium alloy be influenced. Be cased into electrical furnace, hot up with unlimited speed followed the furnac
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 814 (2015)
The Prediction Algorithm of the Optimal X-Ray Tube Voltage in Variable Energy Imaging
Yan BI, Ping CHEN, and Yan HAN
X-ray variable energy imaging can obtain the sectional information of complicated structural component successively, and get the whole information by multi-spectrum fusion. Now the energy parameters of X ray imaging mainly depend on man-made setting with the certain step voltage. However this modulation doesn’t match t
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 820 (2015)
Object Separation from Medical X-Ray Images Based on ICA
Yan LI, Chun-yu YU, Ya-jian MIAO, Bin FEI, and Feng-yun ZHUANG
X-ray medical image can examine diseased tissue of patients and has important reference value for medical diagnosis. With the problems that traditional X-ray images have noise, poor level sense and blocked aliasing organs, this paper proposes a method for the introduction of multi-spectrum X-ray imaging and independent
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 825 (2015)
Contrast of Z-Pinch X-Ray Yield Measure Technique
Mo LI, Liang-ping WANG, Liang SHENG, and Yi LU
Resistive bolometer and scintillant detection system are two mainly Z-pinch X-ray yield measure techniques which are based on different diagnostic principles. Contrasting the results from two methods can help with increasing precision of X-ray yield measurement. Experiments with different load material and shape were c
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 829 (2015)
Searching for Rare Celestial Objects Automatically from Stellar Spectra of the Sloan Digital Sky Survey Data Release Eight
Jian-min SI, A-li LUO, Fu-zhao WU, and Yi-hong WU
There are many valuable rare and unusual objects in spectra dataset of Sloan Digital Sky Survey (SDSS) Data Release eight (DR8), such as special white dwarfs (DZ, DQ, DC), carbon stars, white dwarf main-sequence binaries (WDMS), cataclysmic variable (CV) stars and so on, so it is extremely significant to search for rar
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 834 (2015)
Optical Design of Miniature Infrared Gratings Spectrometer Based on Planar Waveguide
Yang-yu LI, Yong-hua FANG, Da-cheng LI, and Yang LIU
In order to miniaturize an infrared spectrometer, we analyze the current optical design of miniature spectrometers and propose a method for designing a miniature infrared gratings spectrometer based on planar waveguide. Common miniature spectrometer uses miniature optical elements to reduce the size of system, which al
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 841 (2015)
Portable High-Precision System for CH4 Concentration Detection in Mines based on the Laser Mode-Hopping
Xu-tao LU, Jing LI, and Hai-feng LV
In order to detect rapid, portable concentration of methane in the mine, meanwhile, the system includeed a high sensitivity and a long working period, designed differential optical absorption spectroscopy method based on mode-hopping of semiconductor laser, and established wireless detection system for concentration of
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 846 (2015)
An Effective Wavelength Detection Method Based on Echelle Spectra Reduction
Lu YIN, Bayanheshig , Ji-cheng CUI, Jin YANG, Ji-wei ZHU, and Xue-feng YAO
Echelle spectrometer with high dispersion, high resolution, wide spectral coverage, full spectrum transient direct-reading and many other advantages, is one of the representative of the advanced spectrometer. In the commercialization trend of echelle spectrometer, the method of two-dimension spectra image processing is
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 850 (2015)
In-Flight Radiometric Calibration for ZY-3 Satellite Multispectral Sensor by Modified Reflectance-Based Method
Jie HAN, Yong XIE, Xing-fa GU, Tao YU, Qi-yue LIU, and Rong-jun GAO
Through integrating multi-spectral sensor characteristics of ZY-3 satellite, a modified reflectance-based method is proposed and used to achieve ZY-3 satellite multispectral sensor in-flight radiometric calibration. This method chooses level 1A image as data source and establishes geometric model to get an accurate obs
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 856 (2015)
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[in Chinese]
Spectroscopy and Spectral Analysis
  • Publication Date: Mar. 01, 2015
  • Vol. 35 Issue 3 1 (2015)