Contents
2021
Volume: 41 Issue 9
52 Article(s)

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Research Articles
Estimation of Potato Above Ground Biomass Based on Hyperspectral Images of UAV
Accurate monitoring of above-ground biomass (AGB) is an important part of farm production management, so rapid and accurate estimation of AGB is important for the development of precision agriculture. Traditionally, AGB has been obtained using destructive sampling methods, which makes large-area, long-term measurements
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2657 (2021)
Study on Fluorescence and Raman Spectral Characteristics of Lipstick
Yi-jun SHEN, Zi-chen YANG, Ting-yu WANG, Cheng-wei WANG, Lei LI, and Guo-qing CHEN
With the rise of e-commerce and the explosive growth of the beauty makeup market, lipstick products' safety become the focus of attention. In the face of the authenticity of brand lipsticks, the market detection method of cosmetics is single, and the characteristics of brand lipsticks are not targeted. In this pape
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2665 (2021)
Research Progress on Evaluating the Effects of Nanomaterial-Based Development of Latent Fingerprints
Ming LI, Long NI, Meng WANG, Zhong-xu ZHU, Chuan-jun YUAN, and Jian WU
Researches on latent fingerprint development using novel nanomaterials including quantum dots, metal and metal oxide nanomaterials, rare-earth doped up- and down-conversion luminescent nanomaterials, carbon dots, metal-organic frameworks, and aggregation-induced emission materials have mushroomed in recent years, resul
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2670 (2021)
Review of Laser-Induced Breakdown Spectroscopy in Gas Detection
Ya-xiong HE, Wen-qi ZHOU, Chuan KE, Tao XU, and Yong ZHAO
With the development of industrial technology, the requirements of online detection instruments and detection technology in gas detection are becoming higher and higher. Due to the complex changes in gas composition during gas flow, common detection methods such as Fourier Transform Infrared Spectroscopy (FTIR), Cavity
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2681 (2021)
Non-Destructive Identification of the Heat-Damaged Kernels of Waxy Corn Seeds Based on Near-Ultraviolet-Visible-Shortwave and Near-Infrared Multi-Spectral Imaging Data
Dong WANG, Ping HAN, Jing-zhu WU, Li-li ZHAO, and Heng XU
In this research, took the waxy corn seed “Jingkenuo 2000” as an example to research the identification of the the heat-damaged kernels of waxy corn seeds quickly and non-destructively and explore the effect of heat damage on waxy corn seeds. The multi-spectral imaging data of the control group and heat-damaged group w
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2696 (2021)
Determination of Lithium, Iron and Phosphorus in Carbon Composite Lithium Iron Phosphate by Perchloric Acid Digestion-Inductively Coupled Plasma Optical Emission Spectrometry
Bin-bin ZHANG, Jing-bin LI, Shi-ning WANG, Peng-fei HE, and Xiao-qin ZHA
Lithium iron phosphate is one of the main industrial raw materials for the lithium-ion polymer battery industry. Compared with traditional raw material lithium cobalt oxides, lithium iron phosphate has significant advantages in specific energy, battery life, cost and environmental compatibility. Lithium iron phosphate,
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2703 (2021)
Study on Norfloxacin Concentration Detection Based on Terahertz Time Domain Spectroscopy
Jun-peng BAI, Bin LI, Shu-juan ZHANG, and Yi-mei CHEN
The unreasonable use of antibiotics in poultry breeding has led to the frequent occurrence of antibiotic residues in poultry products, affecting food safety and posing a threat to human health. Therefore, accurate and rapid detection of antibiotic drug content is of great significance. This study successfully carried o
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2710 (2021)
Terahertz Phase Shifter Based on Grating-Liquid Crystal Hybrid Structure
Jie LONG, and Jiu-sheng LI
With the rapid development of terahertz technology and its application, the demand for various kinds of terahertz manipulation devices increases as one of the important components of the terahertz system, the terahertz wave phase shifter has become a research hotspot. The reported terahertz wave phase shifters have lar
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2717 (2021)
THz Spectroscopy Detection of Insect Foreign Body Hidden in Tea Products
Xu-dong SUN, and Jun-bin LIU
Chinese black tea is widely respected for its long-term cultural heritage and multiple health benefits. Black tea uses fresh leaves of tea trees as raw materials and is finished by finishing, kneading, drying, screening, and drying. These traditional techniques create a mellow, varied, and rich taste of the famous tea.
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2723 (2021)
Online Detection of VOCs Based on LIBS and Raman Spectra
Geng-yin CHEN, Qi-hang ZHANG, Yu-zhu LIU, Yuan-zhe ZHANGCHENG, Yu CHEN, Guo-qing CHEN, Bo-yuan HAN, and Bumaliya ABULIMITI
As the main substance of air pollution, volatile organic compounds (VOCs) have attracted wide attention because of their strong destructive and physiological toxicity to the atmospheric environment. On-line detection of volatile organic compounds in the atmosphere is a very challenging work. In this study, laser-induce
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2729 (2021)
Classification and Identification of Real or Fake Blood Based on OPO Pulsed Laser Induced Photoacoustic Spectroscopy
Zhong REN, Tao LIU, and Guo-dong LIU
In order to rapidly and accurately achieve the identification of the real or fake blood, as well as recycled usage of blood, the photoacoustic spectroscopy was used in this work to establish a set of blood photoacoustic detection systems and to capture the photoacoustic signal of blood samples. Three kinds of animal bl
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2734 (2021)
Research of Parameter Optimization of Preprocessing and Feature Extraction for NIRS Qualitative Analysis Based on PSO Method
Hao-guang LI, Yun-hua YU, Yan PANG, and Xue-feng SHEN
In the qualitative analysis of near-infrared spectroscopy, preprocessing and feature extraction are indispensable to achieve good recognition results. Preprocessing is mainly to eliminate the influence of various interference factors on the spectral data. The common preprocessing methods include smoothing, first-order
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2742 (2021)
Study on Near-Infrared Spectrum Acquisition Method of Non-Uniform Solid Particles
Hao-guang LI, Yun-hua YU, Yan PANG, and Xue-feng SHEN
In the research of near-infrared spectroscopy (NIRS) qualitative analysis technology, the experimental objects mainly include liquid matter, powder matter and non-uniform solid particles. The liquid and powder materials are evenly distributed, and the spectrum collection and analysis are relatively easy. The non-unifor
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2748 (2021)
Application of SG-MSC-MC-UVE-PLS Algorithm in Whole Blood Hemoglobin Concentration Detection Based on Near Infrared Spectroscopy
Dai-qing SUN, Li-rong XIE, Yan ZHOU, Yu-tao GUO, and Shao-min CHE
In order to improve the accuracy of the whole blood hemoglobin (Hb) concentration prediction model, the original whole blood transmission spectrum signals were first preprocessed by using centering, auto scaling, standard normal variate (SNV), multiplicative scatter correction (MSC), and Savitzky-Golay (SG) smoothing c
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2754 (2021)
In-Line Identification of Different Grades of GPPS Based on Near-Infrared Spectroscopy
Yuan FANG, Zhang-ping HE, Shi-chao ZHU, Xian-rong LIANG, and Gang JIN
Misusing the wrong grades polymer during the polymer processing in the same production line may lead to poorer product performance and a lower qualification ratio. The traditional methods identifying the grades from same kind of polymer are usually time consuming and hysteretic. There has not yet been discovered a fast
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2759 (2021)
Study on Online Detection Method of “Yali” Pear Black Heart Disease Based on Vis-Near Infrared Spectroscopy and AdaBoost Integrated Model
Yong HAO, Qi-ming WANG, and Shu-min ZHANG
Black heart disease is a physiological disease that occurs during the storage of “Yali” pears. The initial stage of the disease manifests itself in brown plaques on the inner core, but there is no difference in the appearance of the fruit from normal fruits, which seriously affects the storage time and quality of “Yali
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2764 (2021)
NIR Spectroscopic Study and Staging Diagnosis of Osteoarthritic Articular Cartilage
Juan-juan FU, Dan-ying MA, Jin-lan TANG, Yi-lin BAO, Yuan ZHAO, Lin-wei SHANG, and Jian-hua YIN
Osteoarthritis (OA) is a major medical disease that threatens the middle-aged and aged people's public health and quality of life. The early lesions of OA are mainly shown in the content changes of extracellular matrix components, which are difficult to detect by patients themselves, even the existing clinical and
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2770 (2021)
Geographical Origin Discrimination of Taiping Houkui Tea Using Convolutional Neural Network and Near-Infrared Spectroscopy
Qi CHEN, Tian-hong PAN, Yu-qiang LI, and Hong LIN
Taiping Houkui Tea, one of China's precious tea series, occupies an important position in public consumption and the tea market. The price of Taiping Houkui tea varies greatly from different geographical origins, and accurate geographical origin discrimination is currently an important factor in promoting the green
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2776 (2021)
Interaction and Thermal Stability of Oxidized Carboxymethyl Cellulose/Collagen Based on Two-Dimensional Infrared Spectroscopy
Zhen-hua TIAN, Jing-xuan HE, Ying WANG, Lian DUAN, and Cong-hu LI
Collagen was modified by oxidized carboxymethyl cellulose (OCMC) and then their interaction and thermal stability were investigated by two-dimensional infrared spectroscopy (2D-IR). One-dimensional infrared spectra showed that the positions and intensities of the main characteristic absorption peaks (amide Ⅰ, Ⅱ and Ⅲ b
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2782 (2021)
On-Site Rapid and Non-Destructive Identification Method for Imported Bulk Olive Oil Quality Based on Portable Raman Spectroscopy
Jin-ge MA, Qiao-ling YANG, Xiao-jun DENG, Yi-yin SHI, Shu-qing GU, Chao-min ZHAO, Yong-ai YU, and Feng ZHANG
With the integration of the global food industry chain and the improvement of people's living standards, the proportion of imported vegetable oil in the daily diet has gradually increased. Olive oil with rich nutritional value has attracted much attention in vegetable oil products. During the cross-border transport
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2789 (2021)
High-Stability Confocal Raman Microscopy Imaging Method Based on Bilateral Fitting Subtracting Confocal Microscopy
Rui-rui ZHANG, Wei-qian ZHAO, Yun WANG, and Li-rong QIU
Confocal Raman microscopy can realise quantitative, nondestructive, and unlabeled imaging for sample microregions and obtain molecular structure characteristics. The time consumption of the confocal Raman microscopy system always lasts up to several hours or even tens of hours. During the time-consuming measurement pro
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2795 (2021)
Preparation and Properties of Micro-Cavity Silver Modified Fiber SERS Probe
Xing-hu FU, Zhen-xing WANG, Shuang-yu MA, Fei ZHAO, Xin LU, Guang-wei FU, Wa JIN, and Wei-hong BI
In this paper, a silver modified micro-cavity fiber surface-enhanced Raman scattering (SERS) probe was proposed. Using Rhodamine 6G (R6G) solution as the probe molecule, the wet detection method was used to place the fiber SERS probe directly into R6G, and the far-end experimental performance of the prepared fiber SERS
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2800 (2021)
An EDXRF Quantitative Algorithm Based on Fundamental Parameters and Spectrum Unfolding
Ming-bo LIU, Xue-liang LIAO, Da-wei CHENG, Zi-yue NI, and Hai-zhou WANG
In the analysis of spectrum for energy dispersive X-ray fluorescence (EDXRF), if the contentof elements is not high in the sample, the peak will keep its original shape as the pure element, peeling the spectrum of pure elements is a good way. Meanwhile, the linear relationship between peak intensity and element content
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2807 (2021)
Determination of Parameters of X-Ray Source Based on Tapered Glass Monocapillary X-Ray Condenser
Ya-bing WANG, Shang-kun SHAO, Xue-peng SUN, Xiao-yun ZHANG, Hui-quan LI, and Tian-xi SUN
The focal spot size and depth of the X-ray source are crucial parameters for X-ray spectroscopy, especially for micro X-ray diffraction and micro X-ray fluorescence. Determining these parameters efficiently and accurately is important for the application and development of the X-ray source. The existing methods for det
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2812 (2021)
Fast Detection of Foodborne Pathogenic Bacteria by Laser-Induced Fluorescence Spectrometry
Yu LIU, Zeng-wei LI, Zhi-peng DENG, Qing-xian ZHANG, and Li-kou ZOU
In recent years, food safety accidents by microbial contamination is a considerable threat to health. The rapid detection of microorganisms is of great significance to food safety. At present, the rapid microorganism detection technology is a difficult operation and high cost. Laser-induced fluorescence spectrometry (L
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2817 (2021)
An Application of Lucy Richardson Iterative in X-Ray Fluorescence Analysis
Yu-xuan ZHU, Jing-bin LU, Xiao-fan ZHAO, Xiao-yan LIU, Wei-wei CUI, Wei LI, Yu-sa WANG, Zhong-hua LÜ, and Yong CHEN
Hard X-ray Modulation Telescope (HXMT) is China's first X-ray astronomical satellite. Low Energy X-ray Telescope (LE) is one of the HXMT's payloads, which used a special swept charge device (SCD) CCD236 detector to observed photons in an energy band of 0.7~13.0 keV. The CCD236 detectors need to be calibrated we
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2823 (2021)
Study on Vibrational Spectral Characteristics of Fentanyl-Class Substances
Lin XU, Hong-yuan HE, Cui-mei LIU, and Zhen-dong HUA
In this study, the infrared (IR) and Raman spectra of 28 kinds of fentanyl-class substances were analyzed. The spectrum characteristics and the distinguishing ability of IR and Raman for fentanyl-class substances were investigated. On the whole, IR and Raman spectra of fentanyl compounds showed different spectral chara
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2829 (2021)
Effects of Thickness on Spectral Properties of Undoped ZnO Thin Films
Chang-hu YANG, and Jian-hui YUAN
X-ray diffraction spectrum, Raman spectroscopy and UV-Vis transmission spectroscopy are important techniques for detecting thin films. By analysing these spectral properties, we can obtain the information of the phase, crystal structure and light transmission properties of the films. The films with different thicknesse
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2835 (2021)
Application of Excitation-Emission Matrix (EEM) Fluorescence Combined With Linear SVM in Organic Pollution Monitoring of Water
Yuan DAI, Ji-zheng XIE, Jing YUAN, Wei SHEN, Hong-da GUO, Xiao-ping SUN, and Zhi-gang WANG
In view of the increasingly serious organic pollution of urban waterbodies, this paper proposes a water quality indexes prediction model based on excitation-emission matrix (EEM) fluorescence technology and a method for quickly judging the water quality category. In this study, a large number of diversified surface wat
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2839 (2021)
Fluorescence Spectroscopy Characteristics of Dissolved Organic Matter Analysis of Straw-Cow Dung Fermentation in Different Proportion
Yan LI, Dan WEI, Wei WANG, Liang JIN, Jian-li DING, Shan-shan CAI, Yu HU, and Yang BAI
Dissolved organic matter (DOM) plays an important role in transforming organic matter into inorganic matter in the natural ecosystem. DOM can provide nutrition and energy for microorganisms and has an important role in indicating the transfer and transformation of humus. Cow dung can improve the humification efficiency
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2846 (2021)
Effects of High Light Duration and Frequencies on Growth and Nutrient Element Contents of Hydroponic Lettuce Cultivated Under LED Red and Blue Light
Ming-jie SHAO, Wen-ke LIU, Cheng-bo ZHOU, Qi WANG, and Bao-shi LI
As the largest band of light absorption of plant photosynthetic pigment, the red and blue spectrum is the main function spectrum of plant photosynthesis, and red-blue LED has become the mainstream light source of plant factories. The response of plants to red-blue light and its mechanism needs to be explored. In this s
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2853 (2021)
Spectroscopic and Structure Study of Plant Hormone Abscisic Acid: Theory and Experiments
Plant hormone Abscisic Acid (ABA) is a small molecule of an organic signal produced by the plant's own metabolism and can produce an obvious physiological effect to the plant itself in very low concentrations. ABA is one of the five endogenous hormones in plants, named for its ability to promote leaf shedding and m
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2859 (2021)
Study on the Relationship Between Element As in Soil of Agricultural Land and Leaf Spectral Characteristics
Wei LIU, Qiang YU, Teng NIU, Lin-zhe YANG, Hong-jun LIU, and Fei YAN
Heavy metal pollution constitutes one of the most urgent problems in soil environmental pollution, as plants become enriched in heavy metals through the soil, which endangers human health and poses a great potential danger to the ecological environment. The monitoring over heavy metal pollution in soil by traditional c
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2866 (2021)
Hyperspectral Estimation Model of Heavy Metal Arsenic in Soil
Zhi-yuan LI, Fan DENG, Jun-liang HE, and Wei WEI
Arsenic is one of the heavy metals that seriously harm the human body. The estimation of arsenic content of heavy metals in soil by using hyperspectral technology has great potential for application. However, the applicability and accuracy of the estimation model will vary greatly due to the influence of the region and
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2872 (2021)
Study on the Detection and Discrimination of Damaged Jujube Based on Hyperspectral Data
Rui-rui YUAN, Bing WANG, Gui-shan LIU, Jian-guo HE, Guo-ling WAN, Nai-yun FAN, Yue LI, and You-rui SUN
Lingwu long jujube as Ningxia dominant characteristic jujube fruit. It has important economic and social value and scientific research significance. This paper has been lingwu long jujube as the research object. First, 60 intact jujubes images were collected Visible/near-infrared (Vis/NIR) using the hyperspectral imagi
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2879 (2021)
Preliminary Study on the Non-Invasive Characterization of Organic Binding Media Employing a Portable Hyperspectral Sensor
Cong WANG, Camaiti Mara, Fu-de TIE, Xi-chen ZHAO, Yi-jian CAO, and [in Chinese]
Non-invasive analysis of artworks is one of the essential requirements in heritage conservation. In this study, a spectroradiometer in the field of remote sensing -a portable, full range hyperspectral sensor—was used to characterize organic compounds commonly found in cultural relics. It can obtain a continuous reflect
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2886 (2021)
Non-Destructive Identification of Hazardousbone Fragments Embedded in the Frozen-Thawed Pork Based on Multispectral Imaging
Hua-feng ZHANG, Wu WANG, Yu-rong BAI, Yi-ru LIU, Tao JIN, Xia YU, and Fei MA
Frozen-thawed pork was widely used as a raw material for processing boneless meat products. The hazardous bone fragment (1~2.5 cm) embedded in the pork can risk processing equipment and consumer health. Therefore, it is necessary to study the feasibility of multispectral imaging technology (405~970 nm) for rapid and no
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2892 (2021)
Carbon Content Detection of Marine Sediments Based on Multispectral Fusion
Xue-ying LI, Zong-min LI, Guang-li HOU, Hui-min QIU, Hong-min LÜ, Guang-yuan CHEN, and Ping-ping FAN
The change of carbon in marine sediment is the information bridge between the past and the future of the marine ecosystem, which reveals the law of the marine ecological process. Therefore, the research on the carbon content of marine sediments plays an important role in mastering the carbon cycle law of the marine eco
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2898 (2021)
Study on the Interaction Between Fulvic Acid and Bovine Serum Albumin by Multispectral and Molecular Docking
Xiao-xia WANG, Hao WU, Zhi-hua NIE, Li-tong MA, Jin-long CUI, Hua-zheng SAI, and Jian-guo CHENG
In this paper, the interaction between fulvic acid (FA) and bovine serum albumin (BSA) was studied by fluorescence spectroscopy, ultraviolet spectroscopy, circular dichroism, synchronous fluorescence spectroscopy, three-dimensional fluorescence spectroscopy and molecular docking simulation in the simulated physiologica
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2904 (2021)
Leaf Nitrogen Concentration Retrieval Based on Polarization Reflectance Model and Random Forest Regression
Zi-han ZHANG, Lei YAN, Si-yuan LIU, Yu FU, Kai-wen JIANG, Bin YANG, Sui-hua LIU, and Fei-zhou ZHANG
Leaf nitrogen concentration is of great significance in the vegetation biochemistry process. Airborne hyperspectral data is widely utilized to retrieve leaf nitrogen concentration. Since the current algorithms cannot completely fulfill the accuracy requirement of precision agriculture, it is urgent to improve the retri
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2911 (2021)
Study on Fluorescence Spectrometry of Natural and Organic Filling Treated Turquoise
Feng-shun XU, Quan-li CHEN, Wei DING, and Hai-tao WANG
Turquoise is mainly presented as colors like blue, green and variegated, among which blue and green possessing the highest value due to their vividness are preferred as optimization products. Organic matter injection is the most commonly used treatment to optimize turquoise, usually divided into organic matter soaking
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2918 (2021)
Spectral Characteristics During Leaf Flourishing Development of Quercus Mongolica and Its Influencing Factors
Plant growth is an important indicator of environmental changes. Under the global environmental change pattern, it is particularly important to study the impact of multiple environmental factors and interactions on plants. In order to explore the spectral characteristics of plants in response to environmental changes,
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2924 (2021)
Mapping Analysis by μ-X-Ray Fluorescence for Waterlogged Archaeological Wood From “Nanhai No.1” Shipwreck
Ke-jia HUANG, Jing DU, Jian ZHU, Nai-sheng LI, Yue CHEN, and Yuan-yuan WU
“Nanhai No.1” is a wooden merchant ship from the Southern Song Dynasty of China. It sank about 20 nautical miles south of Dongping Port in Yangjiang City, Guangdong Province. It was discovered in 1987. After several underwater archaeological investigations, it was strictly followed in 2007. Under the archaeological reg
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2930 (2021)
Effect of Sequential Solvent Treatment on the Macromolecular Structure of Organic Matter in Zichang Coal
Gui-xiong ZHANG, Xiao-xia YANG, Kai LIU, and Feng FU
Understanding the depolymerization and dissociation of the macromolecular structure of low-rank coal organic matter at the molecular level, is a key issue that needs to be solved urgently to efficiently use low-rank coal and obtain high value-added chemicals from it. Based on this, the Zichang low-rank coal was treated
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2934 (2021)
Study on Multi-Wavelength Transmission Spectral Feature Extraction Combined With Support Vector Machine for Bacteria Identification
Chun FENG, Nan-jing ZHAO, Gao-fang YIN, Ting-ting GAN, Xiao-wei CHEN, Min CHEN, Hui HUA, Jing-bo DUAN, and Jian-guo LIU
The realization of rapid identification of pathogenic bacteria has important practical significance for preventing large-scale disease outbreaks caused by microbial pollution in water bodies. Conventional bacterial detection methods such as biochemical identification and nucleic acid detection have the characteristics
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2940 (2021)
Study on the Calibration of Reflectivity of the Cavity Mirrors Used in Cavity Enhanced Absorption Spectroscopy
Lu-yi WU, Guang-zhen GAO, Xin LIU, Zhen-wei GAO, Xin ZHOU, Xiong YU, and Ting-dong CAI
Cavity Enhanced Absorption Spectroscopy (CEAS) technology is an important part of high sensitive spectroscopy, which has the advanced characteristics of relatively simple apparatus, high sensitivity, and strong environmental adaptability. Using a 2.0 μm tunable diode laser as the light source, combined with CEAS, a dev
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2945 (2021)
Research on Spectral CT Image Denoising Via Fully Convolution Pyramid Residual Network
Xue-zhi REN, Peng HE, Zou-rong LONG, Xiao-dong GUO, Kang AN, Xiao-jie LÜ, Biao WEI, and Peng FENG
Traditional computed tomography(CT) uses an integral detector to collect projection, which reflects the average attenuation characteristics of the object and causes the loss of attenuation characteristics to some extent, so it cannot measure the object qualitatively and quantitatively. The spectral CT based on photon-c
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2950 (2021)
Study on the Spectral Characteristics of Ground Objects in Land-Based Hyperspectral Imaging
Bing ZHOU, Bing-xuan LI, Xuan HE, He-xiong LIU, and Fa-zhen WANG
In recent years, the military equipment used for reconnaissance has achieved high precision levels. The high-tech reconnaissance methods can often perform precise strikes on targets, greatly reducing victory in war. Two commonly used methods for acquiring hyperspectral data are hyperspectral satellite remote sensing an
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2956 (2021)
Classification Method of Liquor Quality Based on Time and Frequency Spectrum Characteristics
Hai-jiang ZHU, Hao TANG, Jing-xian SUN, and Zhen-xia DU
In order to establish a fast and accurate method for liquor quality identification, this paper uses the machine learning method to model liquor of different quality. To extract the characteristics of different quality liquor, we analyzed different quality liquor with the ion mobility spectroscopy, constructed the featu
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2962 (2021)
Experimental Investigation of Spectral Emissivity of Copper-Nickel Alloy During Thermal Oxidation Process
Yan-fen XU, Kai-hua ZHANG, Yan-lei LIU, Kun YU, and Yu-fang LIU
With the development of science and technology, the requirements for the quality of copper-nickel alloy products rise rapidly in the industrial field. During smelting and processing of copper-nickel alloy, the quality of products depends on the accurate surface temperature measured by radiation thermometry.Therefore,it
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2969 (2021)
Preparations and Spectroscopic Studies on the Three New Strontium(Ⅱ), Barium(Ⅱ), and Lead(Ⅱ) Carbocysteine Complexes
El-Megharbel Samy M., and Refat Moamen S.
Carbocisteine, also known as carbocysteine, is a mucolytic that reduces the viscosity of sputum and thus can be used to help relieve symptoms of chronic obstructive pulmonary disorder and bronchiectasis by allowing the sufferer to expel sputum more easily. A total of three new metal complexes of carbocysteine, HCcy wit
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2975 (2021)
KDC: A Green Apple Segmentation Method
Zhi-fen WANG, Wei-kuan JIA, Shan-hao MOU, Su-juan HOU, Xiang YIN, Ji ZE, and [in Chinese]
Efficient and accurate recognition of apples in the visible spectrum is the key part of realizing orchard production prediction and automatic harvesting. The color of the green target is similar to the background of the branches and leaves.Thus the recognition of green apples becomes a new challenge. In the natural orc
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2021
  • Vol. 41, Issue 9, 2980 (2021)