Contents
2018
Volume: 38 Issue 6
58 Article(s)

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Irradiation Parameters of Dy3+ Doped Fluoride Borate Glass Phosphors under Laser Excitation
Yuan TIAN, Xin ZHAO, Hai LIN, and De-sheng LI
Dy3+ doped fluoride borate glass phosphors are prepared with high temperature melting method. In addition, the fluorescence spectra of glass phosphors are determined under the 453nm blue laser using an integrating sphere test system, and the related absolute fluorescence parameters of glass phosphors are obtained. Expe
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1665 (2018)
Effects of Temperature of Laser Shell on Background Signals for Trace Gas Detection in TDLAS
Hao CHEN, Yu JU, Li HAN, and Jun-biao LIU
As the technique of tunable diode laser absorptionscopy (TDLAS) is employed for trace gas detection, the second-harmonic background signal drifts with the changeof the temperature of semiconductor laser shells. It results in unstability of the second-harmonic signal. Its drifting can cause measurement errors. Based on
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1670 (2018)
Spectral Characteristics Study of Atmospheric Pressure Argon Volume Dielectric Barrier Discharge
Fei-long SONG, Di JIN, Min JIA, and Zhi-jie SONG
Plasma produced through dielectric barrier discharge can react with hydrocarbon molecules in the fuel by collision cracking reaction, causing fuel molecules to be decomposed into hydrogen and small molecule hydrocarbons that are more prone to detonate, which will improve the ignition properties of the continuous rotati
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1675 (2018)
Based on Double Threshold Canny Equalization Algorithm for Terahertz Image Enhancement
Ye-xin SHI, and Jiu-sheng LI
Terahertz wave (THz), which exists between microwave and far infrared, has made the terahertz spectroscopy and imaging technology develop rapidly in recent years because of its non-damage property and high stability. The unique feature of non-invasive detection of terahertz wave has a perfect prospect in the field of s
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1680 (2018)
Open-Path Fourier Transform Infrared Spectrum De-Noising Based on Improved Threshold Lifting Wavelet Transform and Adaptive Filter
Wei JU, Chang-hua LU, Yu-jun ZHANG, Wei-wei JIANG, Ji-zhou WANG, and Yi-bing LU
The major component of atmospheric pollutants is volatile organic compounds (VOCs), Fourier transform infrared spectroscopy (FTIR) is a widely used VOCs on-line measurement method at the present stage. The infrared spectrum obtained by open path (OP-FTIR) is easily to be polluted by various noise. Therefore, the develo
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1684 (2018)
VIP Analysis to Simplify the NIR Detection Study of the Dural Hematoma
Yan-jun ZHANG, Qiu-ming SUN, Hui-quan WANG, Zhe ZHAO, Jing-gong SUN, Jun MA, and Dong-yuan LIU
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1691 (2018)
Prediction of Total Polysaccharides Content in P. notoginseng Using FTIR Combined with SVR
Yun LI, Ji ZHANG, Fei LIU, Fu-rong XU, Yuan-zhong WANG, and Jin-yu ZHANG
The multi-component synergy is one of the important pathways for the pharmacological effects of traditional Chinese medicine (TCM) due to the complicated chemical compositions. Therefore, it is necessary to control and reflect the quality of TCM comprehensively in order to ensure its efficacy and safety. In Chinese Pha
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1696 (2018)
Infrared Spectroscopy Combined with Chemometrics for Rapid Determination of Total Flavonoids in Dendrobium Officinale
Heng SUN, Hang JIN, Qiang HU, Ping-de KANG, Jun-fei CHEN, Jia-wei HE, and Yuan-zhong WANG
The detection of active ingredient contents is to evaluate the quality of medicinal plants, and different harvesting time has a significant influence on effective component contents of medicinal plants. In this study, Fourier transform infrared (FTIR) spectroscopy combined with chemometrics was used to establish a rapi
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1702 (2018)
Preparation and Study of High Reflective Near Infrared Heat-Insulation Film
Jiang JING, Xiao-yu GU, Sheng ZHANG, Hong-fei LI, Jun SUN, and Yu CHEN
BiOCl was prepared by solvothermal method, and the reflection of BiOCl to near-infrared light was studied. The crystal structure and chemical composition of BiOCl were characterized by X-ray diffraction (XRD) and electron spectroscopy (EDS). Under the observation of scanning electron microscopy (SEM), BiOCl exhibited h
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1708 (2018)
Visual Identification of Slight-Damaged Cotton Seeds Based on Near Infrared Hyperspectral Imaging
Pan GAO, Chu ZHANG, Xin L, Ze ZHANG, and Yong HE
High quality cotton seeds are the basis of precision seeding technique. In this paper, near-infrared hyperspectral imaging technology is used to realize the visible identification of micro-damaged cotton seeds, which lays a theoretical foundation for the development of cotton seeds selection equipment. Near-infrared hy
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1712 (2018)
Classification of Tea Varieties Via FTIR Spectroscopy Based on Fuzzy Uncorrelated Discriminant C-Means Clustering
Xiao-hong WU, Yan-li ZHAI, Bin WU, Jun SUN, and Chun-xia DAI
Tea, as a kind of healthy drink, is loved by many people. But its function and effect vary from different varieties. Therefore, it is of great significance to find a fast, easy and simple method for the identification of tea varieties. In order to classify different tea varieties quickly and accurately, fuzzy uncorrela
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1719 (2018)
Near Infrared Spectroscopy Identification Method of Wood Surface Defects Based on SA-PBT-SVM
Hui-ling YU, Hong-sheng MEN, Hao LIANG, and Yi-zhuo ZHANG
In this paper, near infrared spectroscopy was applied to build an identification model to predict four types of defects on the surface of wood boards. A calibration set and a prediction set made of 50 and 30 samples were built randomly and respectively. In addition, a near infrared spectrometer, ranging from 900 to 1 7
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1724 (2018)
A Target Extraction Method of Infrared Image Based on Edge and Transition Region
Jiang YUE, Zhao-xin WANG, Jing HAN, Lian-fa BAI, and Bao-ming LI
Traditional target segmentation based on transition region is sensitive to noise, which can affect the accuracy of the extraction. Compared with the visible image, the thermal noise caused by the detector in infrared image would degrade the detection rate of traditional target extraction method. In addition, although t
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1729 (2018)
The Preparation of the New Membrane-Like Gold Nanoparticles Substrate and the Study of Its Raman Spectroscopy
Lu-tao ZHANG, Guang-ming ZHOU, Cai-hong ZHANG, and Dan LUO
As enhanced substrates, precious metal nanoparticles have been widely used in the study of the SERS.The traditional precious metal nanoparticles were still to be improved in the preparation methods, enhancement ability and accuracy. In this paper, simple and efficient method was developed to prepare a new membrane-like
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1741 (2018)
Study on Au@Ag Core-Shell Composite Bimetallic Nanorods Laoding Filter Paper as SERS Substrate
Si-yuan CHEN, Miao YANG, Xiao-yun LIU, and Liu-sheng ZHA
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1747 (2018)
In-Situ Raman Spectroscopy Testing and Genesis of Graphite Inclusions in Alluvial Diamonds from Hunan
Ying MA, Qi WANG, Zhi-li QIU, Tai-jin LU, Liu-fen LI, Hua CHEN, Xiao-qin DENG, and Hao-nan BO
Graphite is one of the most common inclusion in diamond, it can be divided into protogenetic, syngenetic and epigenetic on the basis of sequence of graphite inclusion formation. The formation environment of the diamond and its late change are indicated by protogenetic/syngenetic and epigenetic graphite. In-situ microsc
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1753 (2018)
Spectra Characterization of the Uvarovite in Anorthitic Jade
Jia LIU, Ming-xing YANG, Jing-ru DI, and Chong HE
The green minerals in Anorthitic Jade were considered to be uvarovite, which is a very rare member in natural garnet group. Uvarovite is very rare in natural conditions, the color is emerald green, uvarovite of high quality can be compared with Jade and Emerald. Predecessors have done some researches on the other end m
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1758 (2018)
Fast Measurement of Sugar in Fruits Using Near Infrared Spectroscopy Combined with Random Forest Algorithm
Sheng-fang LI, Min-zhi JIA, and Da-ming DONG
In recent years, many researchers have studied the measurement methods of fruit sugar and other internal quality by near-infrared (NIR) spectroscopy and some commercial instruments have been produced. However, due to the complexity of the NIR spectra, the transitivity of the models established with NIR is often poorly
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1766 (2018)
Study on Density, Viscosity and Ethanol Content of Ethanol Diesel Based on Raman Spectroscopy
Ai-guo OUYANG, Yu ZHANG, Tian-yi TANG, and Yan-de LIU
Ethanol diesel as a clean fuel is a good substitute for diesel fuel. Different content of ethanol diesel oil viscosity is different, and the ethanol in the ethanol content of diesel fuel affects the quality of combustion, so we need have an instrument or method to achieve Ethanol Diesel Ingredients and Main Indicators
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1772 (2018)
Application of Spectral and Imaging Technique to Detect Quality and Safety of Fruits and Vegetables: A Review
Hai-xia SUN, Shu-juan ZHANG, Jian-xin XUE, Xu-ting ZHAO, and Jiang-long LIU
In this paper, spectral and imaging technique were used as effective tools of evaluation for quality of fruits and vegetables, in order to ensure safety of food and health of consumers. In addition, external information was acquired by imaging technique, internal information was acquired by spectral technique. In order
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1779 (2018)
Vibrational Spectral Characteristics of Ensignia Actinolite Jade from Guangxi, China
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Chemical composition and vibrational spectral characteristics of ensignia actinolite jade from Guangxi, China were investigated using electron microprobe(EPMA), Fourier transform infrared spectrometer(FT-IR) and laser Raman spectrometer(Raman). The site occupancy situation of metal cations with small ionic radii in the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1786 (2018)
One-Pot Microemulsion Synthesis of NaYF4∶Yb3+, Ho3+@Au
Zhi-hui WANG, Dan-dan LONG, Zi-juan LI, Ya-fei YANG, Jing-hui YAN, and Ming-qiang ZOU
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1793 (2018)
Separation of Tongue Coat and Tongue Proper Based on Optical Spectrum Dissimilarity Index Using Double-Wavelength Ratio
Ming LIU, Jing ZHAO, Tai-xia WU, Li-fu ZHANG, Hong-ying TANG, Xiao-zuo LU, and Gang LI
Quantitative description of the tongue proper and tongue coat isperceivedas the important content for tongue diagnosis in traditional Chinese medicine, which directly affects the accuracy of clinical diagnosis. A new method fortongue proper and tongue coat separationusing spectrum dissimilarity index (SDI) by double-wa
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1798 (2018)
Carbon Content Measurement of BOF by Radiation Spectrum Based on Support Vector Machine Regression
Mu-chun ZHOU, Qi ZHAO, Yan-ru CHEN, and Yan-ming SHAO
Accurate on-line prediction of endpoint carbon is of significance for achieving control of end points, improving the quality of steel products, reducing energy consumption and reducing exhaust emissions. In order to solve the problems of endpoint control and carbon content measurement in converter smelting, a novel non
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1804 (2018)
Spectral Characterizations of CSC-P(AM-AA) with Function of Trapping Heavy Metals and Its Removal Efficiency of Cu2+
Xue-feng XIAO, Yong-jun SUN, Hao SHEN, Wen-qaun SUN, Huai-li ZHENG, Yan-hua XU, and Cheng-yu ZHU
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1809 (2018)
Measuring Method of the Spectral Absorptivity for Solar Selective Absorption Coatings at High Temperature
Yu-feng ZHANG, Ming LI, Jing-min DAI, Zhu-feng SHAO, and Yuan-qing WU
Solar thermal power generation is one of the effective ways to utilize solar energy. It plays an important role in alleviating energy crisis and environmental pollution and has far-reaching social significance. The selective absorption coating is an important part of solar collecting tube, and the key factor to determi
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1814 (2018)
Spectral Analysis of Molecular Structure of Water-Soluble Pitch
Xiao-jun ZHENG, Li-juan GAO, Xue-fei ZHAO, Ya-ming ZHU, and Jun-xia CHENG
Water-soluble pitch containing more than 70% of hydrophilic groups were prepared from the oxidation of coal tar pitch in the presence of acid, the product can be applied in the preparation of composite carbon materials in aqueous medium owing to a variety of introduced polarity groups and normal condensed rings. Moreov
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1819 (2018)
Study and Determination the Concentration of CNO-Ion of the QPQ with the Sequential Injection Spectrophotometric Method
Xin WU, Guang-lin LI, and Zhi-yu WEN
Anew technology of metal surface modification-QPQ (Quench-Polish-Quench) Salt bath compound heat treatment technology can improve theabradability and anticorrosion of metal surface. The CNO-ion plays a very important role in the quality control of QPQ technology. A sequential injection spectrophotometric method is prop
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1824 (2018)
The Influence of Alum in Alum Gelatin Solution on Cellulose, Calcium Carbonate and Gelatin in XUAN Paper
Kun XU, Ju-lin WANG, and Qiu-ju HE
Alum gelatin solution is the traditional Chinese materials for paper relics, but excessive use of alum will cause XUAN paper to varying degrees of acidification. In order to understand the effects of alum in alum gelatin solution on different ingredients in XUAN paper, the effect of alum on cellulose, calcium carbonate
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1829 (2018)
Extraction of Photosynthetic Parameters of Cotton Leaves under Disease Stress by Hyperspectral Remote Sensing
Bing CHEN, Gang WANG, Jing-de LIU, Zhan-hong MA, Jing WANG, and Tian-nan LI
Hyperspectra remote sensing technique was applied to detect photosynthetic parameters (PP) in cotton leaf defected Verticillium wilt. The reflectance data about 207 was acquired in 350~2 500 nm bands in different dates and severity level of cotton leaves, and PP were measured by photosynthetic instrument. Analysis of v
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1834 (2018)
Spectral Differences of Tree Leaves at Different Chlorophyll Relative Content in Langya Mountain
Jian PENG, Fei-xiong XU, Kai DENG, Jian WU, Wei-tao LI, Ni WANG, and Min-shi LIU
Chlorophyll content reflects plant health status. Studying on spectral characteristics and regularity of tree leaves at different SPAD values can provide theoretical support for band recognition of chlorophyll hyperspectral monitoring and trees species health management. Nine tree species from shrub and arbor in Langya
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1839 (2018)
Assessment and Analysis of Migrations of Heavy Metal Lead and Zinc in Soil with Hyperspectral Inversion Model
Chao TAO, Ya-jin WANG, Bin ZOU, Yu-long TU, and Xiao-lu JIANG
The existing model of soil heavy metal content reversal model by hyperspectral remote sensing technology is mostly based on the limited sample points of the same study area. However, considering the practical application requirements, whether the model has a good migrate ability is an urgent question. If it is not feas
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1850 (2018)
The Effect of Ca-Bentonite on Spectra of Dissolved Organic Matter during Pig Manure Composting
Xiu-na REN, Quan WANG, Jun-chao ZHAO, Rong-hua LI, Awasthi Mukesh Kumar, Mei-jing WANG, and Zeng-qiang ZHANG
The aim of this study is to investigate the effect of Ca-bentonite (CB) on organic matter transformation during pig manure (PM) composting. In this paper, five treatments representing different CB concentrations(0%CB, 2.5%CB, 5%CB, 7.5%CB and 10%CB of dry PM weight basis) were mixed with initial feed stock composting s
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1856 (2018)
A Segmenting Method for Greenhouse Cucumber Downy Mildew Images Based on Visual Spectral and Support Vector Machine
Jun-cheng MA, Ke-ming DU, Fei-xiang ZHENG, Ling-xian ZHANG, and Zhong-fu SUN
Aiming at the issues that there may exist uneven illuminance conditions and complicated background on the disease spots images captured in real greenhouse field, this paper presented a segmenting method for greenhouse cucumber downy mildew images based on visual spectral and support vector machine. Firstly, a novel com
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1863 (2018)
The Interaction between 4-Ethyl-2-Methoxyphenol and Human Serum Albumin Studied by Spectroscopic and Molecular Docking Techniques
Han-qing GONG, and Jian-bo CHEN
4-Ethyl-2-methoxyphenol is a widely used food additive, but it also has toxicity. In order to investigate the effect of 4-Ethyl-2-methoxyphenol on the body, the interaction between 4-Ethyl-2-methoxyphenol and human serum albumin (HSA) was studied by combining a variety of spectroscopic techniques and molecular simulati
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1869 (2018)
Classification of Geological Samples with Laser-Induced Breakdown Spectroscopy Based on Self-Organizing Feature Map Network and Correlation Discrimination Analysis
Meng-ge YAN, Xiao-zhou DONG, Ying LI, Ying ZHANG, and Yun-feng BI
Laser-induced breakdown spectroscopy has the characteristics of small-invasive, in situ and rapid analysis. It has wide application prospects in the field of sample identification and component analysis. In order to explore the feasibility of the technology in the automatic identification of natural geological samples,
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1874 (2018)
Methodology Research for Determination of Total Phosphorus in Water by Inductively Coupled Plasma-Atomic Emission Spectrometry
Jia LIU, Bing-bing LIU, Mei HAN, Na JIA, and Chen-ling ZHANG
At present, more and more phosphorus is entering the water, which seriously affects the ecological environment and human health, however, the traditional methods of phosphorus analysis are complex and require multiple reagents. In this paper, total phosphorus in water is determined by inductively coupled plasma-atomic
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1880 (2018)
Effects of Methanol Addition on Arsenic Speciation Analysis with HPLC-ICP-MS
Fen YANG, Shao-wen XIE, Chao-yang WEI, and Jin-xin LIU
Arsenic (As) is a ubiquitous, toxic and carcinogenic element, and As compounds can pose significant health risks to human and animals. The toxicity of As depends on both the total concentrations and the chemical species as well. Therefore, much attention has been paid to As speciation analysis in the environmental and
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1884 (2018)
Study on Adsorption and Desorption Characteristics of Cd2+ and Zn2+ on the Surface Sediments of Taihu Lake by Using ICP-MS
Fang FANG, Yu-shan JI, Na BAI, Xiang LI, and Ying LIU
In our experiment, studies have found that the content of Zn is the highest in the filtered water and surface sediments of Taihu Lake, and Cd has the strongest ecological hazards on surface sediments. Therefore, in this paper, the adsorption and desorption characteristics of Cd2+ and Zn2+ on the surface sediments of Su
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1889 (2018)
Trace Elements and U-Pb Ages of Zircons from Myanmar Jadeite-Jade by LA-ICP-MS: Constraints for Its Genesis
Shi-shi CAI, and En ZHANG
Jadeite-jade originates in subduciton-related HP/LT metamorphic zone, thus study of it is of great importantance for shedding lights in subduction research. Zircon is often used to determine the age of rocks, and it’s usually applied to the investigation of genesis and formation time of jadeite-jade. Myanmar is the mos
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1896 (2018)
Identification of Metal Components Characteristic Peak Position of Energy Dispersive X-Ray Fluorescence Spectra Based on the Wavelet Transformation
Wei ZHANG, Hua XU, Lian-fei DUAN, Ming-jun MA, Ting-ting GAN, Jing LIU, Liu-jun WANG, Yu-jun ZHANG, Nan-jing ZHAO, and Wen-qing LIU
In this paper, the accurate identification problem of energy dispersive X-ray fluorescence (EDXRF) characteristic peak position was studied. Based on the characteristic spectra character of the different metal components, the choosing rule of the characteristic spectra was analyzed. According to the theories of singula
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1904 (2018)
Study on EDXRF Method of Turquoise Composition
Ling LIU, Ming-xing YANG, Ren LU, Shen Andy, and Chong HE
LA-ICP-MS was used to calibrate 26 turquoise samples with relatively clean and uniform color on each surface. We selected 9 points on each sample to test the homogeneity of their chemical composition. The results showed that the average error coefficients of Al, P, K, Cu, Fe, V, Cr and Zn in turquoise samples are below
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1910 (2018)
The Effect of Filterson on the Determination of Trace Heavy Metal Cd in Light Matrix by Energy Dispersive X-Ray Fluorescence Spectrometry
Li-jiao ZHANG, Wan-chang LAI, Bo XIE, Jin-chu HUANG, Dan LI, Guang-xi WANG, Qiang YANG, and Xiao-li CHEN
ncreasing the ratio of peak to back (P/B)value is of great importance when using energy dispersive X-ray fluorescence spectrometry to detect heavy metal elements in the light-matrix. Setting up the filters is one way to solve this problem. In the paper the choices (material elements and thickness) for primary filter(it
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1917 (2018)
Similarity Measurement Among Classification Templates for LAMOST Stellar Spectra
Shu-xin CHEN, Wei-min SUN, and Xiao KONG
With the vigorous development of the astronomical spectral big data acquired, such as LAMOST, assessments of the automated data reduction and analysis are necessary. The above work uses the Euclidean distance analysis to determine the similarity between LAMOST spectra and the template. The accuracy of star classificati
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1922 (2018)
Classification and Discrimination of Martian-Related Minerals Using Spectral Fusion Methods
Wei-jie XU, Zhong-chen WU, Xiang-ping ZHU, Jiang ZHANG, Zong-cheng LING, Yu-heng NI, and Kai-chen GUO
Multi-source data fusion is a powerful method to combine data from multiple sources to improve the potential values and interpretation performances of the source data. Multi-payload collaborative analysis is regularly used to detect the same target in planetary exploration. Therefore, it is of great significance and po
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1926 (2018)
Design and Application of Small NIR-Raman Spectrometer Based on Dichroic and Transmission Collimating
Hao GAO, Xiao WANG, Lin-wei SHANG, Yuan ZHAO, Jian-hua YIN, and Bao-kun HUANG
In order to meet professional requirements for the portable and high-performance Raman spectrometer, a small near-infrared (NIR) Raman spectrometer for biomedical detection was built in this work. In addition, assembly system was completed through the theoretical calculation, geometric optical path design. Differences
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1933 (2018)
Study on Spectrophotometric Determination of Zinc Ion
Wei-hong BI, Jun-gang CHEN, Sheng ZHANG, Kun-peng ZHOU, Teng-fei YU, and Xu-tao HOU
In this paper, the standard zinc coloring reagent and zinc color reaction result in water-insoluble flocculent complex. In addition, the absorbance was measured by spectrophotometer, the characteristic spectrum and the absorbance were studied, and the mathematical model was established between the concentration and the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1938 (2018)
Applications of CdSe/ZnS Quantum Dot in Optical Fiber Evanescent-Wave pH Sensing
Ting LIU, Wen-qi WANG, Zhi-qun LIU, Yan-li ZHAO, and Ding-rong YI
We propose a new pH sensing technology using fluorescence sensing based on quantum dots combined with optical fiber sensing based on evanescent wave, which owns the advantages of high sensitivity, fast testing, suitability for micro-environment measurement, remote detection, real-time monitoring, in situ analysis and s
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1944 (2018)
Intense Spectral Modulation by Quantum Cutting Luminescence of Er3+Yb3+ Ion-Pair in Nanophase Oxyfluoride Vitroceramics
Xiao-bo CHEN, Song LI, Chun-lei YU, Shui-feng WANG, Guo-ying ZHAO, Hui MA, Dong ZHENG, Guo-jian YANG, Yuan LIU, Zhi-wei DENG, Qing HE, and Li-li HU
In this paper, the spectral modulation by the quantum-cutting luminescence of Er3+Yb3+ ion-pairs in nanophase oxyfluoride vitroceramics is studied. We obtained X-ray diffraction spectra, surface topographies, excitation, absorption, and luminescence spectra of Er3+Yb3+ nanophase oxyfluoride vitroceramics, and compared
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1949 (2018)
Comparison of Enhancement Effect of DNA-Mediated Energy Transfer by Divalent Cations: Mg2+, Ca2+, Mn2+, Co2+, and Ni2+
Kim Jong-Moon, Jang Myung Duk, Biao JIN, and Jang Yoon Jung
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1970 (2018)
Study on the Spectral Characterization Model of Multi-Color Printer Based on LabPQR Dimension Reduction
Zhong-min JIANG, Ling-jun KONG, Peng NIE, and Hai-qi YU
A spectral characterization model based on dimension reduction is proposed to guarantee the precision of color conversion of the multi-color printer and improve its operation efficiency. Color space division theory and LabPQR nonlinear dimensionality reduction method are adopted in the new model. Moreover, the forward
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1975 (2018)
A New Diagnostic Technique for Gas Target Thickness Based on the Doppler Shift Spectroscopy on Neutral Beam Injector
Yan WANG, Zhi-min LIU, Jing-yang YAN, Li-zhen LIANG, Jiang-long WEI, and Chun-dong HU
Neutral beam injection (NBI) is one of the most effective means of plasma heating and current driving. There are three basic processes in neutral beam injector: generation of ion beam,neutralization of ion beam and transmission of neutral beam, among which neutralization of ion beam is the key link. The gas target thic
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.38 Issue, 6 1987 (2018)