Contents
2020
Volume: 40 Issue 3
58 Article(s)

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Parahydrogen-Induced Hyperpolarized Nuclear Magnetic Resonance: from Basic Principle to Applications
Xin-chang WANG, Wen-long JIANG, Cheng-da HUANG, Hui-jun SUN, Xiao-yu CAO, Zhong-qun TIAN, and Zhong CHEN
Nuclear Magnetic Resonance (NMR) can provide real-time, in-situ high-resolution molecular and biological information, and has been wildly applied in determining the structures of highly complex molecules and biological imaging. Its low sensitivity, however, hindered its further application. An effective way to increase
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 665 (2020)
Development of a Wide Range Hyperspectral Imager for Evidence Examination
Xue-jun ZHAO, Xiao-chun HUANG, Chang-liang WANG, Neng-bin CAI, Lu YIN, Yu-xian LU, and Ming-zhong PAN
The hyperspectral imaging technology is significant in the field of evidence examination. Because of the spectral characteristics and spatial distribution characteristics, non-destructive, rapid and positioning analysis of material evidence can be realized. The spectral detection range of hyperspectral imaging in evide
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 674 (2020)
Study on Coaxial Synergistic Extraction Method of Laser Welding Penetration Characteristic Signal
Qian SUN, Rui-sheng HUANG, Zhen LEI, Yi-cheng YANG, Xu-you WANG, and Li-qun LI
Penetration detection is an important link to realize the on-line control of high power laser welding quality. However, because the penetration region has the characteristics of low radiation and mesoscopic scale, which is generated from the bottom of the laser keyhole, its signal is completely masked by the ejected ma
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 679 (2020)
Multiple Dissolved Gas Analysis in Transformer Oil Based on Fourier Transform Infrared Photoacoustic Spectroscopy
Li-xian LIU, Hui-ting HUAN, Andreas Mandelis, and Xiao-peng SHAO
Trace dissolved gas in transformer oil is a key feature for monitoring the transformers’ status and for estimation of early failure, therefore there is an urgent need for the development of cost-effective on line gas detection methods. As a non-destructive testing method, photoacoustic spectroscopy (PAS) technology is
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 684 (2020)
Ultraviolet Two-Dimensional Non-Dispersive Imaging of SO2 Column Density in Power Plant Plume
Ying-hua ZHANG, Ang LI, Pin-hua XIE, Ye-yuan HUANG, Zhao-kun HU, and Chao-gang ZHANG
In view of the frequent occurrence of sudden accidents, haze and other pollution phenomena in recent years, the harm scope is wide and the harm degree is deep. Therefore, it is urgent to grasp the region, the scope and the intensity of the pollution, as well as the trend of the pollution diffusion. The two-dimensional
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 688 (2020)
Research on Hydrogen Bonds and Conformations of n-Pentanol under High Pressure
Yu-fen REN, Xue-rui CHENG, Yong-qiang WANG, Kun YANG, Chao-sheng YUAN, and Meng-wei ZHANG
Hydrostatic pressure is a very important physical parameter. Application of hydrostatic pressure to molecular systems can adjust the distances and forces of the molecules and atoms, which can result in new structure and conformation change. Normal alkanols H(CH2)nOH are among the simplest substituted organic matters, i
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 694 (2020)
Improving the Efficiency of Solution-Processed, Blue Fluorescent Organic Light-Emitting Diodes (OLEDs) by Employing TADF Exciplex Hosts
Can CUI, Dan-dan SONG, Su-ling ZHAO, Bo QIAO, and Zheng XU
In order to improve the efficiency of solution-processed, blue fluorescent organic light emitting diodes (OLEDs), we propose the use of exciplex hosts with thermal-activated delayed fluorescence (TADF). The TADF exciplex hosts can utilize upconverted singlet excitons by reverse intersystem crossing and then transfer th
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 700 (2020)
Theoretical Analysis of Direct Measurement of Atmospheric Samples Based on NICE-OHMS Technology
Yue-ting ZHOU, Gang ZHAO, Jian-xin LIU, Song-jie GOU, Wei-guang MA, Shu-hang XUE, Lei DONG, Lei ZHANG, Wang-bao YIN, Lian-tuan XIAO, and Suo-tang JIA
Noise-immune cavity-enhanced optical heterodyne molecular spectroscopy (NICE-OHMS) is the most sensitive laser absorption spectroscopy technology. It has obtained dozens of impressive detection sensitivities in a low pressure environment. However, when the measurement is taken at atmospheric pressure, its detection sen
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 706 (2020)
Aerosol Observation and Research in Hefei by MAX-DOAS Technology
Xiao-mei LI, Pin-hua XIE, Jin XU, Ang LI, Xin TIAN, Bo REN, Zhao-kun HU, and Zi-yang WU
Atmospheric aerosols range in diameter from a few nanometers to tens of micrometers, with direct or indirect effects on atmospheric radiation assessments, global climate change, local air quality and visibility, and human health. Especially during the high season of smog in autumn and winter, it’s more conducive to the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 712 (2020)
Study on the Distribution of NO2 Slant Column Density in Atmospheric Boundary Layer of Hefei City Based on Imaging Differential Absorption Spectroscopy
Zi-yang WU, Pin-hua XIE, Jin XU, Ang LI, Qiang ZHANG, Zhao-kun HU, Xiao-mei LI, and Xin TIAN
In recent years, China’s economy has developed rapidly, industrialization has become higher and higher, and atmospheric pollution has intensified, seriously affecting people’s daily lives. Therefore, real-time monitoring and research on atmospheric pollutants is particularly important. The interaction of various pollut
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 720 (2020)
Study on the Detection Method of Alum Content in Sweet Potato Starch by Terahertz Spectroscopy
Ai-guo OUYANG, Yi-lei ZHENG, Bin LI, Jun HU, Xiu-yang DU, and Xiong LI
Alum is an illegal additive that can improve the fragile characteristics of vermicelli. If the content of alum is excessive, it will directly affect the health of the body. This paper combines terahertz spectroscopy to explore a rapid detection method for alum in sweet potato starch. The spectral data of sweet potato s
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 727 (2020)
Terahertz Bandpass Filter Based on Koch Curve Fractal Structure
Hong-yu MA, and Jiu-sheng LI
Terahertz filter is an indispensable functional device in terahertz communication, terahertz imaging and terahertz detection systems. According to different classification methods, there are different kinds of filters. Common filters can be divided into high-pass filter, low-pass filter, band-stop filter and band-pass
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 733 (2020)
High Pressure Raman Spectrum Study of NaNbO3
Ya-rong LU, Hushur Anwar, Mamat Mamatrishat, Molutjan Mubarak, and Kojima Seiji
Perovskite oxide NaNbO3 is an environmentally friendly piezoelectric material with great potential applications. Thus, it has been studied by many researchers using various methods. Although several high pressure studies on structural phase transition of NaNbO3 have been carried out but there are still many disputes re
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 738 (2020)
Study on Different Conformation Raman Spectra of Methamphetamine Based on Density Functional Theory
Nan GAO, Qian TU, and Cheng-hua SUI
As a new-type drug, methamphetamine has been spreading rapidly in recent years and its social harm has become increasingly serious, which has brought severe challenges to the relevant regulatory authorities. How to provide a non-destructive, fast and accurate drug detection method has important practical and applicatio
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 744 (2020)
The Application of Confocal Raman Spectroscopy in Mussels Shell
Nan-nan CUI, Zeng-feng DU, Xin ZHANG, Zhen-dong LUAN, Shi-chuan XI, Lian-fu LI, Min-xiao WANG, Bing WANG, Zheng-wei LIANG, Jing LIU, Chao LIAN, and Jun YAN
Mussels are widely distributed in global waters, from offshore shallow waters to hydrothermal vents and cold seeps in the deep oceans. Mussels secrete calcium carbonate and form shells to protect their soft tissues. The nancomposite properties of mussel shell and the application prospects in biomaterial, tissue enginee
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 750 (2020)
Confocal Raman Micro-Spectroscopy Analysis of Mussel Foot
Zheng-wei LIANG, Zeng-feng DU, Chao-lun LI, Min-xiao WANG, Bing WANG, Xin ZHANG, and Jun YAN
Mussels are widely distributed in various marine environments, from shallow seas to cold seeps and hydrothermal vents in the deep oceans, because of its excellent adaptabilityin different physicochemical conditions. Mussels anchor themselves on the tough substrate exposed on the seabed, such authigenic carbonate crusts
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 755 (2020)
Rapid and Quantitative Detection of Phthalic Acid Ester in Textiles Using Surface-Enhanced Raman Spectroscopy
Yi-wei HUANG, Jia-sheng LIN, Tang-tang XIE, Bao-ying WEN, and Jian-feng LI
With the development of the concept of green textile, more and more attention has been paid to the toxic chemicals used in textiles. Phthalic acid esters (PAEs) having reproductive toxicity, mutagenicity and carcinogenicity, which are frequently used as plasticizers in textiles, will enter the human body via air, water
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 760 (2020)
Preparation of SERS Substrates Based on Polymer Nano-Needle Arrays Modified by Ag Nanoparticles
Shi CHEN, Jing WU, Chao-nan WANG, and Jing-huai FANG
Recently, Surface Enhanced Raman Scattering (SERS) has attracted much attention due to its advantages innondestructive, ultra-sensitive and rapid detection analysis. It has great potential in chemical and biological sensing applications. SERS substrates with high sensitivity, repeatability and stability are of great si
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 765 (2020)
Analyzing Structure and Properties of Goat Milk β-Casein and Bovine Milk β-Casein by Circular Dichroism and Fourier Transformation Infrared Spectroscopy
Meng LI, Juan WANG, Zi-kai WEI, Jia-xin KANG, Ling ZHANG, Dina Tabys, Ning LIU, and Shuang ZHANG
Goat milk β-casein is more easily digested and absorbed by infants than bovine milk β-casein, and the principal reason for this difference is the diversity of their structure. Recently, many investigations have reported the structure of bovine milk β-casein, however, the structure of goat milk β-casein and the differen
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 770 (2020)
Rapid Measurement of the Polyphenol Content in Fruit-Wine by Near Infrared Spectroscopy Combined with Consensus Modeling Approach
Hua YE, Lei-ming YUAN, Hai-ning ZHANG, and Li-min LI
Polyphenol is one of important factors that cause the changes of taste and color in fruit-wine. To ensure the quality of fruit-wine, it is necessary to develop a fast measurement that monitors the change of polyphenol content during the fermentation. The ripe blueberry and mulberry were collected from different harvest
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 777 (2020)
Two-Dimensional Correlation Near Infrared Spectroscopy Analysis of Sodium Silicate and Vinyl Triethoxy Silane
Xiao-hui FU, and Wen-bo ZHANG
There are many studies on the preparation of superhydrophobic coatings, among which silicon derivative coating is a key point. However, there are a few reports on the formation mechanism of silicon derivatives.In this paper, sodium silicate and ethylene triethoxysilane (VTES) were used as reactants of silicon derivativ
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 782 (2020)
Quantitative Study of Chemical Structures of Different Rank Coals Based on Infrared Spectroscopy
Pan-yun HAO, Yan-jun MENG, Fan-gui ZENG, Tao-tao YAN, and Guang-bo XU
The change of chemical structure of coals with different rank is of great significance to the study of macromolecular structure evolution in coal. The chemical structures of Hequ candle coal, Liulin coking coal and Jincheng anthracite coal are characterized by means of fourier transform infrared spectroscopy. From the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 787 (2020)
Analysis of Extractives Content of Guangxi Fast-Growing Eucalyptus and Models Optimization Based on Near-Infrared Technique
Hua ZHU, Ting WU, Gui-gan FANG, Long LIANG, Bei-ping ZHU, and Guang-hui SHE
In pulping and papermaking industry, extractives of wood chips influence the impregnation efficiency, pulp energy consumption and pulp yield. But traditional analysis methods for the content of extractives are not applicable for industrial online monitoring because of being time consuming and costly. Therefore, the pre
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 793 (2020)
Establishment of the Spectral Equation of Two Phosphor-Coated White LEDs
Jian-wen XU, Guo-qing CHEN, Ya-min WU, Chao-qun MA, and Jiao GU
In order to effectively simulate the luminescence spectrum of two kinds of phosphor mixed coated white LEDs, the silicate series of green phosphors and high-viscosity series of red phosphors were selected. Fluorescence spectra of green phosphors and red phosphors were measured by the British FLS920P fluorescence spectr
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 799 (2020)
Rapid Detection System of 2,4,6-Trinitrophenol (TNP) Based on Fluorescent Probe
Jie LIAN, Yi-fei REN, Rui-qin YANG, and Hong-xia HAO
The rapid detection of 2,4,6-trinitrophenol (TNP) has attracted more and more attention in recent years, due to its powerful explosive hazard and environmental toxicity. In this study, TNP fluorescent probe based on perylene imide was synthesized by one-step synthesis, and the rapid detection of TNP was realized by the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 804 (2020)
Study on Raman Spectra and Fluorescence Spectra of Dy3Al2(AlO4)3 in Aluminosilicate Substrates
Bao-feng ZHENG, Xiao-yun YANG, Chun-gang MIN, Xiao-ying CUI, and Kun DONG
Silicoaluminate substrates doped with Dy at different concentrations are synthesized by high temperature solid state method. X-ray diffraction phase analysis shows that one of the main phases is Dy3Al2(AlO4)3. By Raman spectroscopy analysis, the intensity of the Raman peak is at 874.5 cm-1, which is related to the stre
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 809 (2020)
Study on Characteristics of Zinc Ion Probe Based on Fluorescence Enhancement of Bilirubin
Ming ZHENG, Si-min CAO, Yang-yi LIU, Xiao-dan CAO, Zhuang CHEN, Shu-jun YAN, Hao-yang LI, Jin-quan CHEN, and Jian-hua XU
Based on the fluorescence enhancement effect of Zn2+ on bilirubin (BR), this work proposes a new method for the detection of Zn2+ concentration, and a systematically investigation of BR as a Zn2+ probe by using ultraviolet-visible light absorption and steady-state fluorescence spectroscopy has been conducted. Compared
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 813 (2020)
Construction of a Red-Emitting Associate Fluorescent Probe Consisting of a Cationic Aluminum Phthalocyanine and Hematopophyrin Monomethylether: Its Response to Berberine and Application
Xiao ZHENG, Tao ZHOU, Yan ZHANG, Ya-bin DENG, Ping HUANG, Mao-qiang XUE, and Dong-hui LI
Berberine (BBR) is widely used and of significant importance in medical field, and its quantitative analysis is of great value in guiding clinical treatment. There still be some shortcomings remaining in the determination of berberine by traditional methods, such as less sensitivity, narrow response range, or high test
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 817 (2020)
Spectral Characteristics Analysis and Remote Sensing Retrieval of COD Concentration
Yao CHEN, Chang-ping HUANG, Li-fu ZHANG, and Na QIAO
Organic pollutants are the main source of water pollution. The degree of organic pollution in water bodies can be comprehensively reflected by chemical oxygen demand (COD) indicator. Compared with the traditional methods, which are highly time-consuming and cause secondary pollution, remote sensing techniques can detec
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 824 (2020)
Colorimetric Detection of Trace Malachite Green by Label-Free RNA-Aptamer and AuNPs
Chen ZHAO, Cheng-yi HONG, Zheng-zhong LIN, and Zhi-yong HUANG
Malachite green (MG), one of the toxic triphenylmethane chemicals, has been used worldwide in aquaculture because of its low cost and high efficacy in bacteriostasis. However, the residue of MG may cause carcinogenic, teratogenic and mutagenic effects. Traditional methods for MG detection are relatively complex, which
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 831 (2020)
The Effects of Light Source Differences on Array Spectroradiometer Measurements and the Research of Ultraviolet Stray Light Correction
Ling LI, Zhi-feng WU, Yan-fei WANG, and Cai-hong DAI
With the goal of climate change prediction and disaster weather prevention, high accurate spectral radiance calibration is required in earth observation. Array spectroradiometers have problems such as internal structural defects and unsatisfactory optical components, resulting in stray lights, which seriously affect th
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 837 (2020)
Fast and Highly Accurate Brillouin Frequency Shift Extracted Algorithm Based on Modified Quadratic Polynomial Fit
Zhi-niu XU, Yu-hang HU, Li-juan ZHAO, and Ming-yue FAN
To improve real-time performance of fiber distributed sensing based on Brillouin scattering, and at the same time, ensure high measurement accuracy, the topic about Brillouin frequency shift extraction with high accuracy and less computational burden is investigated. The computer programs about Brillouin frequency shif
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 842 (2020)
Spectroscopic Characterization of 2,4-Dinitrotoluene Degradation by Persulfate Activation with Zero-Valent Iron
Zhi-fei MA, Hai-yang SUN, Tian-xue YANG, Qing XIONG, Yu YANG, Kan CAO, Hua-li CAO, and Dai-she WU
With the intensification of human activities, refractory organic compounds have become one of the groundwater pollutants. groundwater is a nutrient-poor and anaerobic environment, which will aggravate the long-term risk of refractory organic matter. Therefore, the remediation of groundwater contaminated by 2,4-dinitrot
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 849 (2020)
Temperature and Refractive Index Sensing Properties Based on Combined Sensor for Few Mode Fiber
Yue-feng QI, Cui JIA, Li-yuan XU, Xin ZHANG, Bi-tong CONG, Yan-yan LIU, and Xue-qiang LIU
Based on the theory of mode interference and the sensing characteristics of fiber Bragg grating, a combined sensor composed of a single modefiber (SMF)-few mode fiber Bragg grating (FBG)-SMF structure is proposed. The SFS structure interferometer is constructed by fusing a certain length of few mode fiber (FMF)between
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 855 (2020)
Spectroscopic Analysis of Preparation of Ecological Activated Carbon Based on Electric Furnace Slag Ultrafine Powder Modified Biomass Waste Material
Hao ZHANG, Lei ZHANG, and Hong-ming LONG
Activated carbon with developed porous structure and abundant specific surface area was prepared from wood, bamboo and other biological resources, which has the problems of high production cost, being unfavorable to the sustainable development of ecological environment, short service life and being easy to cause second
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 861 (2020)
Effect of Humidity on Determination of Main Components in Cement Raw Meal Using Near Infrared Spectroscopy and Compensation Method
Hang XIAO, Zhen-fa YANG, Lei ZHANG, Fa-ye ZHANG, Qing-mei SUI, Lei JIA, and Ming-shun JIANG
As a new detection method, near infrared spectroscopy (NIR) has been applied to the rapid compositional analysis of cement raw meal. However, environmental factors such as humidity may have a potential impact on its detection. In order to improve the accuracy of the detection, we studied compensation method based on th
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 867 (2020)
Identifying Eucalypt Hybrids and Cross Parents by Near Infrared Spectroscopy
Wan-hong LU, Peng LI, Chu-biao WANG, Yan LIN, and Jian-zhong LUO
Studying the gene control pattern of interested traits after control pollination is one of the key fields in exploring the law of gene recombination in eucalypt improvement. The accuracy of conventional quantitative analysis for that is often low, and the DNA analysis for that has high professional requirements, and is
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 873 (2020)
Inversion of Rice Height Using Multitemporal TanDEM-X Polarimetric Interferometry SAR Data
Xian-yu GUO, Kun LI, Yun SHAO, Lopez-Sanchez Juan M., and Zhi-yong WANG
Rice height, an important index of rice growth monitoring, is a comprehensive reflection of rice itself, soil, hydrology and meteorology. So accurate, efficient, and large-scale inversion of rice crop height can provide reliable basis for rice identification, phenological monitoring, pest and yield estimation. Syntheti
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 878 (2020)
Ammonia Volatilization from Farmland Measured by Laser Absorption Spectroscopy
Hua-li QUE, Wen-liang YANG, Xiu-li XIN, Dong-hao MA, Xian-feng ZHANG, and An-ning ZHU
Ammonia volatilization is an important path of nitrogen loss from farmland into the environment, and is also the main factor of PM2.5 formation, which has serial disadvantageous effect on the ecological environment and agricultural production. Previously, most of the traditional methods for ammonia emission measurement
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 885 (2020)
Estimation of Winter Wheat Leaf Water Content Based on Leaf and Canopy Hyperspectral Data
Xiu-qing CHEN, Qi YANG, Jing-ye HAN, Lin LIN, and Liang-sheng SHI
Fast and nondestructive monitoring of leaf water content (LWC) is critical to crop drought diagnosis and irrigation decision. In order to quantify and predict the LWC with hyperspectral remote sensing data, field experiments of winter wheat with different water-deficit stress levels were conducted for two consecutive y
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 891 (2020)
Prediction of Continuous Time Series Leaf Area Index Based on Long Short-Term Memory Network: a Case Study of Winter Wheat
Ze-hao LONG, Qi-ming QIN, Tian-yuan ZHANG, and Wei XU
The continuous time series of Leaf Area Index (LAI) can reflect the growth of winter wheat, and the prediction of future LAI is important for guiding agricultural production. The crop growth models, such as the World Food Studies (WOFOST), can predict the future LAI by simulating the growth and development of winter wh
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 898 (2020)
Study on Hyperspectral Identification Method of Rice Origin in Northeast/Non-Northeast China Based on Conjunctive Model
Long LIN, Jing-zhu WU, Cui-ling LIU, Chong-chong YU, Zhi LIU, and Yu-wei YUAN
Hyperspectral images of rice from northeast/non-northeast regions were collected, and spectral images at characteristic wavelengths were screened. The clustering combination of image features and pattern recognition method was established to quickly and accurately identify northeast/non-northeast rice origin. Northeast
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 905 (2020)
The Identification of Beef Varieties by Fusing Image Information Based on Hypersepctral Image Technology
Cai-xia WANG, Song-lei WANG, Xiao-guang HE, and Huan DONG
In this study, beef variety was identified by hyperspectral imaging technology which contains abundant spectral and spatial information in an object. Firstly, hyperspectral images of beef samples in the visible and near infrared (400-1000 nm) regions were acquired by the hyperspectral imaging system which contain 252 s
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 911 (2020)
Application of Near Infrared Spectroscopy Combined with Comparative Principal Component Analysis for Pesticide Residue Detection in Fruit
Shu-yi CHEN, Quan-ming ZHAO, and Da-ming DONG
Near-infrared spectroscopy (NIR) analysis is considered as a promising chemical analysis technique because its advantages of convenient-testing, no damaging and fast response. However, due to the many unknown factors in the band distribution and structural analysis of the near-infrared spectrum, there are many difficul
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 917 (2020)
Development of Multi-Cultivar Universal Model for Soluble Solid Content of Apple Online Using Near Infrared Spectroscopy
Yan-de LIU, Hai XU, Xu-dong SUN, Xiao-gang JIANG, Yu RAO, and Yu ZHANG
Cultivar variability influences the near-infrared modeling and analysis of the internal quality of the fruit due to the different cell structure, composition and optical transmission characteristics of the fruit so that the original model can not predict the fruit quality parameters with high precision. The feasibility
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 922 (2020)
Study on the Characteristics of Laser Induced Fluorescence Signal of Machine Oil in Soil with Changing Excitation Light Energy
Zhao-lu ZUO, Nan-jing ZHAO, De-shuo MENG, Yao HUANG, Gao-fang YIN, Ming-jun MA, and Jian-guo LIU
The exploration and development of petroleum is spread all over the country, and the application of its products is inseparable from the industrial and agricultural production and the daily life of the people. In the use of petroleum and petroleum products, they leak into the soil and accumulate, which will destroy the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 929 (2020)
Fe, As and S Speciation Transformation During Arsenopyrite Bioleaching Based on Spectral Analysis Technology
Hong-rui CHEN, Duo-rui ZHANG, Zhen-yuan NIE, Lei ZHENG, Li-li ZHANG, Hong-ying YANG, and Jin-lan XIA
In the present study, the bioleaching of arsenopyrite by the moderately thermoacidophilic strain Sulfobacillus thermosulfidooxidans YN-22 was investigated based on iron, arsenic, and sulfur speciation analysis by synchrotron radiation As/S K-, and Fe L- edge X-ray absorption near edge structure (XANES) spectroscopy, X-
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 934 (2020)
Study on Grade Identification of Dendrobium by LIBS
Pei-chao ZHENG, Shuang ZHENG, Jin-mei WANG, Xiang-yu LIAO, Xiao-juan LI, and Rui PENG
Dendrobium is a commonly used Chinese herbal medicine, often using fresh or dry stems into the medicine, beneficial to the stomach, nourishing yin and clearing heat. In recent years, pharmacological studies have found that Dendrobium has the functions of anti-cataract, anti-oxidation, anti-tumor and improving immunity.
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 941 (2020)
Inorganic Multi-Element Analysis of Foodstuff by Means of Low Power Total Reflection X-Ray Fluorescence Spectrometry Using Suspension Sampling
Jie GAO, Cheng SHENG, Yue-qin ZHU, Min DONG, Rong QIAN, and Shang-jun ZHUO
A simple, rapid and wide-ranging analytical method is urgently needed for the detection and control of inorganic multi-element in foodstuff. Therefore, in this work, an analytical methodology using suspension sampling in combination with a low power benchtop total reflection X-ray fluorescence (TXRF) system has been de
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 945 (2020)
Accuracy Testing of Soil Mineral Quantification by XRD-Rietveld Full-Spectrum Fitting Method: Simulation Experiments and Comparison with Traditional Method
Wei FU, Zhao PENG, Peng LUO, Jian-xun QIN, and Yang-yang FENG
The XRD-Rietveld full-spectrum fitting method (Rietveld method) is an advanced technical method that is widely used in the field of materials science to solve the quantification issue of multiphase mixture samples. Theoretically, the Rietveld method could be applied in the geosciences field, and it can help geologists
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 950 (2020)
Spectral and Typomorphic Characteristics of Quartzose Jade from Taishan, Guangdong Province
Yue-feng ZHANG, Zhi-li QIU, Yin-ying CHENG, Zhi-xiang LI, Liu-fen LI, and Ming ZHU
Quartzose jade, which is widely distributed and has been mined in more than 10 provinces and regions in China, is an important characteristic jade in the domestic market. It has been used for thousands of years and wasthe predominant jade material inthe pre-Qin period of Lingnan area. The origin distinction of quartzos
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 956 (2020)
Research Progress of Spectral Technologies of Binding Media Used in Paintings
Dong-mei CHEN, Chang-dai SI, and Shi-jia LONG
Binding media used in cultural relics was often mixed with pigments or dyes, and the composition was complex. In the long historical preservation environment, the binding media degraded and aged, and the painting layer was seriously damaged. Because of its high artistic, historical and scientific value, the painting co
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 961 (2020)
Study on Chemical Composition and Provenience Differentiation of Turquoises Excavated from Two Sites in Xinjing
Yi-heng XIAN, Xin-tong LI, Xue-qi ZHOU, Jian MA, Yan-xiang LI, and Rui WEN
Study on geological provenience of turquoise can reveal a lot about ancient trade, organization of resources and cultural exchanges, thus the origin of turquoise artifacts excavated from Xinjiang has been a hot issue in archaeometry in recent years. At present, there are three major academic hypotheses on the provenien
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 967 (2020)
Comparative Analysis of Near-Infrared Spectral Characteristics of Water-Bearing Rocks with Different Lithologies
Fang ZHANG, Zuo-le HU, Dong-sheng WANG, Yu-meng LIU, Yun-xin XIE, Hui-hui ZHUO, and Man-chao HE
During the process of building inversion model of water content based on NIR spectrum, it is the key issue to figure out whether the feature set of rock will change along with the differences of lithology or not. Aiming at this problem, firstly conducting a laboratory experiment on water absorbability of rock by intell
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 971 (2020)
The Study of the Behaviors of Zinc and Strontium in Caries-Affected Teeth by Laser-Induced Breakdown Spectroscopy (LIBS) Technique
Nouir R., Hamzaoui S., Ghalila H., and Jadane N.
We report on the application of Laser Induced Breakdown Spectroscopy (LIBS) technique to the study of Ca, P, Zn and Sr evolutions for adult caries-affected teeth using nanosecond laser pulses. The aim of this work is to better understand the behaviors of Zn and Sr as trace-elements in the caries eruption with respect t
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 980 (2020)
Synthesis, Spectroscopic and Antimicrobial Investigations of Scandium(Ⅲ) Complexes with Four Kinds of Sulfa Drugs
Refat Moamen S., and El-Habeeb Abeer A.
Herein, this article was focused on the synthesis and discussed the spectroscopic characterizations of four new scandium(Ⅲ) sulfa-drug complexes. The nomenclature and symbols of these drugs were sulfadimidine (sulp-1), sulfanilamide (sulp-2), sulfamethoxazole (sulp-3) and sulfadiazine (sulp-4). The microanalytical and
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 985 (2020)
Detection of a Chemical Reaction by a 1~18 GHz Chirped-Pulse Fourier Transform Microwave Spectrometer
Chao JIAO, Sheng-wen DUAN, Ke-ya XU, Yi WU, Ming SUN, Li LI, Wen-hua GU, Lun-lun XIAN, Yu-zhen ZHANG, Qian CHEN, Ya-ming LI, and Lu KANG
Fourier transform microwave spectrometer is the main tool for measuring molecular rotational transitions and an important instrument for researching molecular rotational spectroscopy. Based on quantum mechanics, rotational spectroscopy is essential for the structural analysis of molecules and for deciphering molecular
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 991 (2020)
[in Chinese]
[in Chinese]
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.40 Issue, 3 1 (2020)