Contents
2021
Volume: 41 Issue 10
53 Article(s)

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Research Articles
Progress in the Correction of Self-Absorption Effect on Laser-Induced Breakdown Spectroscopy
Fan DENG, Zhen-lin HU, Hao-hao CUI, Deng ZHANG, Yun TANG, Zhi-fang ZHAO, Qing-dong ZENG, and Lian-bo GUO
Laser-induced breakdown spectroscopy (LIBS), as a new material composition detection technology, has lots of advantages such as rapid, real-time, micro-damage, in-situ, multi-element analysis and so on. At present, it has been widely used in environmental monitoring, food safety, mineral processing and metallurgy, biom
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 2989 (2021)
Study on the Influence of Fuel Sensitivity on the Spectral Characteristics of Partially Premixed Combustion in Internal Combustion Engines
Hai-feng LIU, Zhen-yang MING, Ming-sheng WEN, Yan-qing CUI, Wei LIU, and Ming-fa YAO
In this paper, the effect of fuel sensitivity (S) of 0 and 6 on the flame development and combustion luminescence spectrum in the engine cylinder are studied in an optical engine by using flame high-speed imaging technology and self-luminescence spectroscopy. The combustion model was transitioned from the new partially
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 2999 (2021)
Study on the Measurement of C6H6 in the 195~208 nm Band Based on Differential Absorption Spectroscopy
Kai-di YE, Min QIN, Wu FANG, Jun DUAN, Ke TANG, Fan-hao MENG, He-lu ZHANG, Pin-hua XIE, and Wen-bin XU
Substituents form BTX (benzene, toluene, xylene, etc) by replacing the H atom on the benzene ring. The unfixed π-bond electrons on the benzene ring of the common structure are stimulated, which makes BTX have a distinct characteristic absorption structure in the ultraviolet band of 240~280 nm. BTX in this atmosphere ca
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3007 (2021)
Characteristics of Aerosol Optical Properties and Their Potential Source in Hefei in Autumn
Jin-ping OU, Hao-ran LIU, Peng-cheng ZHU, Heng XU, Zhuang WANG, Yuan TIAN, Guo-hua LIU, and Qi-hua LI
Aerosols directly disturbs the earth’s radiation budget and climate by absorbing and scattering solar radiation, indirectly affecting the formation of cloud condensation nuclei, and further changing the optical properties. A field study was carried out using an aethelometer and nephelometer from 5 November to 10 Decemb
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3014 (2021)
Analysis of Metal Impurity Elements in Li4Ti5O12 Through Microwave Plasma Atomic Emission Spectroscopy
Hong-wei LIU, and Liang FU
The spinel Li4Ti5O12 demonstrates high operating potential, excellent cycle life, and high safety as anode material of lithium-ion battery due to its negligible volume change, high thermal stability. The migration and deposition of metal impurities in Li4Ti5O12 are harmful degradation effects. In particular, magnetic m
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3021 (2021)
Research on Origin of Mottled Clay in the Coastal Areas of Fujian and Guangdong Provinces Based on Laser Particle Technology
Jing WANG, Zhen CHEN, and Quan-zhou GAO
Laser particle size analysis integrated laser, photoelectric and computer technologies has recently become a mainstream method of grain size testing. As particles with different sizes produce scattered light at different angles to the incident laser, the particle size distribution of the sample can be calculated by mea
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3026 (2021)
Near Infrared Spectral Wavelength Selection Based on Improved Team Progress Algorithm
Mei-feng GAO, and Huan-ming TAO
Aiming at the problem of near-infrared spectroscopy wavelength selection, an improved team progress algorithm (iTPA) is proposed based on the team progress algorithm (TPA). The bands of molecular spectrum are arranged in descending order according to the evaluation value function obtained by modeling corresponding phys
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3032 (2021)
Measurement of Volatile Compounds Released From Plastic Using Long-Optical-Path FTIR
Run-yu WANG, Da-ming DONG, Song YE, and Lei-zi JIAO
In addition to degrading into microplastics in the natural environment, plastic products will pollute the environment, but also produce volatile organic compounds, which also cause huge pollution and harm to the environment. Therefore, the measurement of plastic volatiles is particularly important. At present, traditio
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3039 (2021)
Study on the Rapid Identification of Flavonoids in Chestnut Rose (Rosa Roxburghii Tratt) by FTIR
Jing ZHOU, Qing-qing ZHANG, Jin-guo JIANG, Qian NIE, and Zhong-chen BAI
The fresh, dried chestnut rose (CR) (Rosa roxburghii Tratt) and stored for several days wild CR pulp were analyzed by using the infrared spectral technology of Fourier transform infrared spectrometer (FTIR) at room temperature in this paper. To compare the spectral characteristics of fresh and dried CR pulp, we extract
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3045 (2021)
NIR Calibration Transfer Method Based on Minimizing Mean Distribution Discrepancy
Yu-hui ZHAO, Peng-cheng LU, Yu-bo LUO, and Peng SHAN
With the advantages of high efficiency, non-destructive and environmental protection, NIR is widely used in many fields to rapidly analyse substances. However, it is still faced with the problems of the short life cycle of spectral calibration model and difficulty obtaining and preserving standard samples for instrumen
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3051 (2021)
Development and Experiment of a Handheld Visible/Near Infrared Device for Nondestructive Determination of Fruit Sugar Content
Shu-xiang FAN, Qing-yan WANG, Yu-sen YANG, Jiang-bo LI, Chi ZHANG, Xi TIAN, and Wen-qian HUANG
A handheld portable device for fruit sugar content was developed based on visible/near-infrared spectral analysis. The device consists of a micro-spectrometer, halogen lamps, OLED screen and microcontroller. The real-time analysis and control software of the microcontroller was written in C language with the help of th
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3058 (2021)
Relationship Between Visible/Near Infrared Spectral Data and Fertilization Information at Different Positions of Hatching Eggs
Fu ZHANG, Xia-hua CUI, Ya-kun ZHANG, and Yong-xian WANG
It takes more time and energy for eggs to hatch, but the circumstances of hatching egg embryo growth are less than 100%. The early discrimination of hatching eggs can reduce the economic loss and improve the efficiency. The near-infrared spectral analysis technology used in detecting the early fertilization information
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3064 (2021)
Inversion of Soil Organic Matter Fraction in Southern Xinjiang by Visible-Near-Infrared and Mid-Infrared Spectra
De-fang LUO, Jie PENG, Chun-hui FENG, Wei-yang LIU, Wen-jun JI, and Nan WANG
Soil organic matter is the material basis of soil fertility, and its fraction is an important indicator to evaluate soil fertility. Soil organic matter fractions can be divided into humin (HM), humic acid (HA) and fulvic acid (FA) according to their solubility. The fertility characteristics of different fractions are s
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3069 (2021)
Study on Soil Salinity Estimation Method of “Moisture Resistance” Using Visible-Near Infrared Spectroscopy in Coastal Region
Han YANG, Jian-fei CAO, Zhao-hai WANG, and Quan-yuan WU
Rapid and accurate monitoring of soil salinity in the coastal regions are of great significance to the rational use and protection of land. Visible-near infrared spectroscopy has been widely used for the efficient estimation of soil properties. However, the interference of soil moisture on the spectrum decreases the es
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3077 (2021)
Influence Mechanism of Microwave on Barite Flotation Based on Infrared Fitting Spectrum Analysis
Jing-xuan WU, Jie LI, Jia-wei LIN, Shi-wen YI, Min LI, and Wen-rou SU
At present, methods of separating from low-grade barite ore are usually adopted to improve the grade of barite in flotation by using new flotation reagents, and the recovery of flotation can be improved by microwave pretreatment of the mineral before flotation, but the mechanism of microwave on flotation reagents and m
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3083 (2021)
Rapid Determination of Nitrogen and Phosphorus in Dairy Farm Slurry Via Near-Mid Infrared Fusion Spectroscopy Technology
Di SUN, Meng-ting LI, Mei-rui MU, Run ZHAO, and Ke-qiang ZHANG
Rapid and accurate determination of the nitrogen (N) and phosphorus (P) in the slurry/biogas slurry has been a technical bottleneck is urgently needed for the large-scale dairy farms in China on their ways of planting and breeding combination. Conventional wet chemical measuring methods in the laboratory were difficult
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3092 (2021)
Research on Infrared Absorption Characteristics and Detection Technology of New Environmentally Friendly Insulating Gas Trans-1,1,1,4,4,4-Hexafluoro-2-Butene
Nian TANG, Shu-kai HE, Xiao-zhe ZENG, Huan-xin WANG, Dong-wei SUN, Qian-qian WU, and Jing-wei LI
The search for alternative new environmentally insulating gases has become a research hotspot in the fields of chemistry and electrical science since the widespread application of sulfur hexafluoride gas in the power field has brought about increasingly severe environmental pollution. Trans-1,1,1,4,4,4-hexafluoro-2-but
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3099 (2021)
Studies on the Effects of Sodium Hydroxide on Hydrogen Bonding of Water and Ionic Liquid/H2O Systems by ATR-IR Analyses
Liu-fang NI, Jing YU, Xin-ping WANG, Jun WANG, Xiao-xia CAO, Shi-lin CAO, and Xiao-juan MA
In this study, attenuated total reflection spectroscopy (ATR-IR) was used to analyze the influence of NaOH on the hydrogen bonding network of H2O and 1-ethyl-3-methylimidazolium acetate ionic liquid aqueous solution (EmimAc/H2O). The results showed that the addition of NaOH affected the symmetry and type of hydrogen bo
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3106 (2021)
Quick Measurement Method of Condensation Point of Diesel Based on Temperature-Compensation Model
Shun-kuan WAN, Bo LÜ, Hong-ming ZHANG, Liang HE, Jia FU, Hua-jian JI, Fu-di WANG, Bin BIN, and Yi-chao LI
Portable near-infrared (NIR) spectrometer for quick on-site measurement is an important trend in the study field of NIR spectroscopy. However, in order to achieve quick measurement, a portable NIR spectrometer is generally not equipped with temperature-controlled device. Therefore, the change in ambient temperature wil
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3111 (2021)
Local Preserving Projection Similarity Measure Method Based on Kernel Mapping and Rank-Order Distance
Yu-hua QIN, Meng ZHANG, Ning YANG, and Qiu-fu SHAN
Aiming at the curse of dimensionality problem in measuring spectral similarity caused by the high dimensionality, high redundancy, non-linearity and small samples of the near-infrared spectrum, a local preserving projection algorithm based on kernel mapping and rank-order distance (KRLPP) is proposed in this paper. Fir
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3117 (2021)
Spectral Discrimination of Rabbit Liver VX2 Tumor and Normal Tissue Based on Genetic Algorithm-Support Vector Machine
Chen-yang LIU, Huang-rong XU, Feng DUAN, Tai-sheng WANG, Zhen-wu LU, and Wei-xing YU
Rabbit liver VX2 tumor is a tumor model that can grow rapidly in various organs, such as liver, lung, rectum, etc., and is often used in tumor research. In this paper, using high-near-infrared spectrum technology to four rabbits VX2 liver tumor and normal tissue in vivo and in vitro reflection spectrum detection, then
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3123 (2021)
Multispectral Structural Characterization of Low-Molecular-Weight Organic Acids Modified Urea
Ying-qiang ZHANG, Shui-qin ZHANG, Li-yan WANG, Liang YUAN, Yan-ting LI, Qi-zhong XIONG, Zhi-an LIN, and Bing-qiang ZHAO
As the main nitrogen fertilizer in China, urea shows high activity. After hydrolysis in soil, urea is easily lost through volatilization and leaching, resulting in a low urea utilization efficiency, a waste of nutrient resources, and environmental pollution. Using organic acids to modify urea can delay urea decompositi
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3129 (2021)
Raman Spectral Blood Stain Identification Based on Band Selection
Zhi-chao YANG, Lu SHI, Jing CAI, and Hui ZHANG
The species identification of blood stains has important practical significance in criminal technology and inspection and quarantine. Raman spectroscopy provides an idea for the identification of bloodstain species. In this paper, human blood samples and blood samples of pig, chicken, duck, cow and mouse were collected
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3137 (2021)
Study on the Inspection of Shooting Residues by Micro-Raman Spectroscopy
Sen ZHAO, Xiao-tian LIANG, Meng-ke YU, and Jing CAI
To establish a method to use Raman Microscope Imaging Spectrometer to inspect the propellant powder, the product after the propellant combustion, and the shooting residue. Collect the propellant particles of the imitation 9×19 Balabellum pistol ammunition and the combustion product of the “QSZ92” 9 mm pistol prope
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3142 (2021)
Rapidly Detection of Total Nitrogen and Phosphorus Content in Water by Surface Enhanced Raman Spectroscopy and GWO-SVR Algorithm
Yan-jun ZHANG, Cheng-long KANG, Ya-qian LIU, Xing-hu FU, Jin-xiao ZHANG, Ming-xue WANG, and Liu-zhen YANG
A new quantitative analysis method was proposed, which combined surface-enhanced Raman spectroscopy (SERS) and support vector regression (SVR) based on Grey Wolf Optimization (GWO) algorithm to quickly and quantitatively detect the total nitrogen (TN) and total phosphorus (TP) content in water. The traditional TN and T
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3147 (2021)
Surface Enhanced Raman Spectroscopic Investigation on SPR Catalyzed Decarboxylation of Ortho-Mercaptobenzoic Acid at Au Nanoparticles Monolayer Film
Xiang-peng JIN, Xing-jia LI, Chen-jie ZHANG, Ya-xian YUAN, and Jian-lin YAO
The surface plasmon resonance (SPR) of noble metallic nanostructures has attracted considerable attention due to its wide application. It plays a dual roles in catalyzing special surface reactions and inducing surface-enhanced Raman spectroscopy (SERS) effect. For the latter, the surface Raman signal is enhanced dramat
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3153 (2021)
Study on the Raman Spectral Characteristics in Ageing Condition Discrimination of Oil-Paper Insulation
Jing-xin ZOU, Yan-qin LIU, Ming-zhe YUAN, Qi-hang WANG, Zhou FAN, and Fu WAN
Obtaining effective characteristics that can accurately reflect the ageing condition of oil-paper insulation is of great significance to the accurate diagnosis of oil-paper insulation systems. Surface-enhanced Raman spectroscopy (SERS) has shown application potential in oil-paper insulation ageing diagnosis. This paper
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3159 (2021)
Preparation and Application of Micro-Nano Structure SERS Substrate Based on Copper Mesh Displacement Reaction
Guang-mao LI, Sheng-ya QIAO, Chen ZHU, Fu-li ZHENG, Sen YANG, and Han-xian CAI
The development of electric energy is closely related to the development of the national economy, so the stable and safe operation of the power grid guarantees the people’s stable life. The stable and reliable operation of the power grid is related to the insulation level of the transformer, so it is very important to
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3166 (2021)
DFT/TDDFT Study on Spectra of Peptides
Yun-fan YANG, Jian-bo HU, Yong-gang LIU, Qiang-qiang LIU, Hang ZHANG, Jian-jie XU, and Teng-xiao GUO
Peptides are important biological molecules. Ultraviolet-visible absorption spectroscopy and fluorescence spectroscopy are important methods for studying the fine structure of biomolecules. The structures and molecular frontier orbital of Growth hormone-releasing peptide (GHRP-6) and Oxytocin were calculated by density
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3172 (2021)
pH Dependent Time-Resolved Fluorescence Spectra of ZnSe Quantum Dots Based on Glutathione Ligands
Zi-hao ZHOU, Fan YANG, Dong LI, Jian-ping WANG, and Jian-hua XU
At present, the research on the pH response of quantum dots mainly focuses on quantum dots containing Cd, and study only the response of steady-state fluorescence spectrum to pH value. However, quantum dots containing Cd have certain toxicity to the biological system, and the steady-state fluorescence spectrometry has
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3178 (2021)
Key Parameters for Maize Leaf Moisture Measurement Using NIR Camera With Filters Based on Hyperspectral Data
Peng-cheng LI, Han LIU, Long-lian ZHAO, and Jun-hui LI
To provide effective technical means for the study of the crop growth in water stress response mechanism, drought monitoring, and precision irrigation, moisture content detection in different regions of maize live crop leaves and near the canopy is achieved.The large volume, large weight, low luminous flux hyperspectro
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3184 (2021)
Hyperspectral Technique Coupled With Chemometrics Methods for Predicting Alkali Spreading Value of Millet Flour
Guo-liang WANG, Ke-qiang YU, Kai CHENG, Xin LIU, Wen-jun WANG, Hong LI, Er-hu GUO, and Zhi-wei LI
As the main ingredient of millet flour, the quality of starch determined the market price of millet flour. Gelatinization characteristic is one of the most important physical characteristics of millet flour, and the alkali spreading value is the main index that reflects the gelatinization characteristic directly. The d
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3189 (2021)
Hyperspectral Band Selection Based on Improved Particle Swarm Optimization Algorithm
Liu ZHANG, Nan YE, Ling-ling MA, Qi WANG, Xue-ying LÜ, and Jia-bao ZHANG
Hyperspectral images have hundreds of continuous and narrow spectral bands, spanning visible light to infrared light. They can provide fine spectral properties of ground objects and have important application value for recognizing and classifying ground objects’ materials and attributes. It is of great significance to
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3194 (2021)
Detection of Pest Degree of Phyllostachys Chinese With Hyperspectral Data
The detection of insect pests of Phyllostachys edulis plays a vital role in the growth of bamboo and the development of the bamboo industry. Based on the relationship between the hyperspectral canopy spectrum information and the pest degree of Phyllostachys edulis, the characteristic wavelengths, indices, and spectral
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3200 (2021)
Airborne Hyperspectral Features of Three Types of Typical Surface Vegetation in Central Yunnan
Lin HU, Shu GAN, Xi-ping YUAN, Yan LI, Jie LÜ, and Ming-long YANG
Hyperspectral remote sensing technology has the advantages of map integration. And compared with the traditional multispectral remote sensing technology, it can realize the accurate identification of the target. Therefore, it is gradually applied to the detection of surface vegetation. In this paper, the three typical
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3208 (2021)
Detection of Rice False Smut Grade Degree Based on the Rank Sum Test of Spectral Feature Points
Jia-mao SANG, and Feng-nong CHEN
Rice smut is known as the cancer of rice. The pathogen not only affects rice yield, but also causes health risks if it attaches to food and enters the body. In this study, the normalized vegetation index (NDVI) of hyperspectral images was used to obtain feature points, and the incidence of rice smut disease was detecte
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3214 (2021)
Cabernet Gernischt Maturity Determination Based on Near-Ground Multispectral Figures by Using UAVs
Sheng-hui YANG, Yong-jun ZHENG, Xing-xing LIU, Tian-gang ZHANG, Xiao-shuan ZHANG, and Li-ming XU
Wine grapes are generally harvested in batches, and their quality is affected by harvest time. Conventional methods mainly rely on the test of physical and chemical indicators of samples in laboratories, such as testing phenol and sugar, to determine the maturity of harvest. However, if multiple fields are required to
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3220 (2021)
Spectral Characteristics of Madagascar Agates
Zhi-qi ZHANG, Tong ZHAO, Ling LIU, and Yan LI
The origin of agate is distributed worldwide, and the mineralogical and spectroscopic characteristics of agates in most areas at home and abroad have been well studied. However, little research has been focused on the spectral characteristics and origin characteristics of agates from Madagascar. The banded structure an
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3227 (2021)
Research on the Controllability of Aircraft Skin Laser Paint Remove Based on Laser-Induced Breakdown Spectrum and Composition Analysis
Wen-feng YANG, Zi-ran QIAN, Yu CAO, Gui-ming WEI, De-hua ZHU, Feng WANG, and Chan-yuan FU
Laser paint removal, as a branch of laser cleaning technology, will replace the traditional polishing and chemical paint removal technology to achieve the controlled paint removal of the aircraft skin surface.However,the process and quality of controlled paint removal depend on effective in-situ online monitoring techn
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3233 (2021)
Research on Selection Method of LIBS Feature Variables Based on CART Regression Tree
Wen YOU, Yang-peng XIA, Yu-tao HUANG, Jing-jun LIN, and Xiao-mei LIN
When laser induced breakdown spectroscopy (LIBS) is used for detection, due to the many and complex spectral lines, there are much redundant information, which will affect the quantitative analysis. Therefore, extracting effective feature variables is of great significance in the quantitative analysis of LIBS. In this
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3240 (2021)
Research on a Decomposing Method of Energy Spectrum Overlapping Peaks Based on Gaussian Sharpening Method
Qing-shan WANG, Dong-yang WANG, Xiong-jie ZHANG, Bin TANG, and He-xi WU
In the measurement of the radioactivity energy spectrum, due to the low resolution of the detector, the similarity of the atomic energy level in the sample to be tested, and the limitation of the instrument stripping technology, the overlapping phenomenon of full energy peak often occurs, which brings great difficultie
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3245 (2021)
Spectral Study on Combustion Supporting Effect of Plasma Jet for Methane Combustion in Air
Xiao-lin ZHANG, Shou-zhe LI, Chun-jun JI, Yu-long NIU, Yang BAI, and Hong-da LIAO
Atmospheric pressure argon plasma jet (APAPJ) is a non-equilibrium plasma producing a large number of electrons, positive ions, excited particles and active groups, which can significantly reduce the activation energy in reactions, and the dynamic effect caused by APAPJ also imposes influence on the transportation proc
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3251 (2021)
Research on Gas Concentration Measurement Method Based on Gradient Descent Method to Fit Spectral Absorption Signal Directly
Tunable diode laser absorption spectroscopy technology is widely used in fields such as atmospheric environment monitoring, combustion flow field diagnosis, industrial process control, human breathing detection, etc. Due to its strong selectivity, high sensitivity, high accuracy and non-invasive measurement. Direct abs
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3256 (2021)
Simulation and Influencing Factors Analysis of Gas Detection System Based on TDLAS Technology
Guo-shui WANG, Ao GUO, Xiao-nan LIU, Lei FENG, Peng-hao CHANG, Li-ming ZHANG, Long LIU, and Xiao-tao YANG
As a necessary means of circulation of bulk cargo, ship transportation has made significant contributions to our country’s economic and social development. However, at the same, time marine diesel engines have brought severe problems of pollution emissions. In the context of increasingly stringent global emission limit
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3262 (2021)
Study on the Characteristic Parameters of Lightning Return Stroke Channel Core Based on Spectroscopy
Guo-rong LIU, Ting-ting AN, Rui-bin WAN, Ping YUAN, Xue-juan WANG, Jian-yong CEN, He-tian CHENG, and Zhi-yan GUO
High current and intense electromagnetic radiation in the lightning return stroke channel core are the leading causes of many lightning disasters. With the rapid development of modern science and technology, lightning protection is becoming more and more important. In order to perfect the lightning protection system, i
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3269 (2021)
Rapid Nondestructive Detection and Spectral Characteristics Analysis of Factors Affecting the Quality of Dendrobium Officinale
Feng-nong CHEN, Jia-mao SANG, Rui YAO, Hong-wei SUN, Yao ZHANG, Jing-cheng ZHANG, Yun HUANG, and Jun-feng XU
With the improvement of people’s living standards, people pay more and more attention to the health care function of Chinese herbal medicine. Dendrobium officinale Kimura et Migo (Dendrobium officinale) is a rare Chinese herbal medicine, known as “life-saving fairy grass”. In this study, we tried to evaluate the qualit
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3276 (2021)
Spectral Reflectance Reconstruction Based on Camera Raw RGB Using Weighted Third-Order Polynomial and Wiener Estimation
Fu-hao LI, and Chang-jun LI
The research on predicting the spectral reflectance information of objects based on the camera RGB value has always attracted researchers’ attention. The traditional method is to restore spectral reflectance through the information under a single light source. Recently, Zhang et al. [Color Research & Application, 2
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3281 (2021)
Characterizing Chromophoric Dissolved Organic Matter (CDOM) in Lake Chaohu in Different Hydrologic Seasons
Yu-yang LI, Yan-ni GUO, Jun-yu ZHU, Lei ZHOU, Yong-qiang ZHOU, and Chun-hua HU
In this paper, water samples were taken from Lake Chaohu in January (dry), April (wet-to-dry transition), and July (wet) to explore the spectral composition and distribution characteristics of chromophoric dissolved organic matter (CDOM) under different hydrologic conditions. Our results showed that there was no signif
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3286 (2021)
Desalination Monitoring of Wooden Shipwreck Components of the Qing Dynasty Marine Shipwreck, Xiaobaijiao No.1
Jing DU, Tao JIN, Feng-dan HU, Chi ZHANG, Tie-quan ZHU, Chang-fa ZHAN, Nai-sheng LI, Zheng JIA, and Yue CHEN
The “Xiaobaijiao Ⅰ” shipwreck is a wooden commercial vessel designed for ocean-going, which sank in the Daoguang Reign of the Qing Dynasty (1821—1850 AD). Its hull structure of “the combination of Chinese and Western” has caught society’s attention. The desalination protection treatment mainly uses EDTA-2NA as completi
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3294 (2021)
Research on Spectral Measurement Technology and Surface Material Analysis of Space Target
Shi-yu DENG, Cheng-zhi LIU, Yong TAN, De-long LIU, Chun-xu JIANG, Zhe KANG, Zhen-wei LI, Cun-bo FAN, Cheng-wei ZHU, Nan ZHANG, Long CHEN, Bing-li NIU, and Zhong LÜ
With the ever-increasing space activities and the rapid increase in the number of space debris, it is especially important to catalog and identify unknown space debris. Because rocket bodies, artificial satellites and their fragments are exposed in space, their surface materials’ physical and chemical properties will u
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3299 (2021)
Diagnosis of Atmospheric Pressure Argon/Air Needle-Ring Dielectric Barrier Discharge Emission Spectrum
Zheng-kai LI, Lei CHEN, Mei-qi WANG, Peng SONG, Kun YANG, and Wen ZENG
To gain a deeper understanding of the electron transport process and chemical reaction process in the plasma jet. A needle-ring plasma generator generated a stable plasma jet- at a discharge frequency of 10 kHz and an atmospheric pressure. The types of active particles, electron excitation temperature and plasma vibrat
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3307 (2021)
Spectroscopic and Fluorescence Studies on the Trivalent Ce, Eu, Nd and La Metal Ions Rhodamine C Florescent Dye Complexes
Refat Moamen S., Salman Mahmoud, El-Didamony Akram M., Fetooh Hammad, Abd El-Maksoud Eman S.E., and El-Sayed Mohamed Y.
The four isolates solid complexes: [La(RHC)(NO3)2]·3H2O, [Nd(RHC)(NO3)2]·4H2O, [Eu(RHC)(NO3)2]·2H2O, and [Ce(RHC)(NO3)2]·5H2O that obtained by the reaction of the nitrate salts of the Ce(Ⅲ), Eu(Ⅲ), Nd(Ⅲ) and La(Ⅲ) ions and rhodamie C (RHC) ligand were interpretative using elemental analysis (C, H an
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3311 (2021)
In First Time: Synthesis and Spectroscopic Interpretations of Manganese(Ⅱ), Nickel(Ⅱ) and Mercury(Ⅱ) Clidinium Bromide Drug Complexes
El-Megharbel Samy M., and Refat Moamen S.
Clidinium is a synthetic anticholinergic agent which has been shown in experimental and clinical studies to have an antispasmodic and antisecretory effect on the gastrointestinal tract. Inhibits the muscarinic effects of acetylcholine at neurotransmitter sites after parasympathetic ganglia. It is used to treat peptic u
Spectroscopy and Spectral Analysis
  • Publication Date: Oct. 01, 2021
  • Vol. 41 Issue 10 3316 (2021)