Contents
2022
Volume: 42 Issue 9
50 Article(s)

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Orginal Article
Research Progress in Quantitative Determination of Phenolic Hydroxyl Groups in Lignin
Peng-hui LI, Zheng-wei JIANG, Jia-quan LI, Jian-peng REN, and Wen-juan WU
Lignin degradation is an important way to the utilization of biomass resources. Lignin is a three-dimensional networked macromolecular structure with many functional groups. When different methods are used to degrade lignin, detecting the content of phenolic hydroxyl groups in degraded lignin can more intuitively show
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2666 (2022)
Retrieval of High-Temperature Field Under Strong Diffusive Mist Medium via Multi-Spectral Infrared Imaging
Hong-sheng SUN, Xin-gang LIANG, Wei-gang MA, Jing GUO, Jia-peng WANG, Chao QIU, and Xiao-gang SUN
The surface temperature retrieval of high-temperature objects shielded by strong diffusive mist plays a critical role in aerospace, metallurgical and many other industries. Traditional radiation temperature measurements under extreme conditions usually cause substantial errors because of the strong extinction and scatt
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2702 (2022)
Research Articles
Current Status and Future Perspective of Spectroscopy and Imaging Technique Applications in Bruise Detection of Fruits and Vegetables: A Review
Tong-tong ZHOU, Xiao-lin SUN, Zhi-zhong SUN, He-huan PENG, Tong SUN, and Dong HU
Fruits and vegetables are subjected to different degrees of squeezing, collision or friction during harvesting, transportation, storage, sorting, packaging and marketing, resulting in external bruising like crushing, cracking and abrasions, as well as internal bruising like black core, water core, browning rot, mildly
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2657 (2022)
Research Progress of Spectroscopy Detection Technologies for Waterborne Pathogens
Yu-xia HU, Jie CHEN, Hui SHAO, Pu YAN, Heng XU, Long SUN, Xiao XIAO, Lei XIU, Chun FENG, Ting-ting GAN, and Nan-jing ZHAO
Waterborne pathogenic bacteria contamination can cause various diseases, seriously endangering human health and public health security. Waterborne pathogen detection is important to human health care, water safety and disease diagnosis. Conventional waterborne pathogen detection techniques, such as artificial culture,
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2672 (2022)
Research Progress in the Application of Raman Spectroscopy in Petroleum Geology
Qiang LIU, Shao-bo LIU, Xue-song LU, Jun-jia FAN, Hua TIAN, Xing-zhi MA, and Li-li GUI
Raman spectroscopy has the advantages of being simple, rapid, in-situ, micro-zone, non-destructive, high resolution and high sensitivity, can be used to analyze the composition and molecular structure information of substances and is a powerful tool for geological research. By reviewing the research progress of Raman s
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2679 (2022)
Study on Spectral Detection System of Emulsified Oil Based on the Degree of Dispersion Polarization
Xiao WANG, Mu-hua LIU, and Jiang XU
Based on the spectrum detection technology of dispersion polarization, the optical polarization characteristics of emulsified oil particles and the Mie scattering physical model have been emphatically studied, and the spectrum detection system of dispersion polarization degree has been constructed. In the wavelength ra
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2689 (2022)
UMAP-Assisted Fuzzy C-Clustering Method for Recognition of Terahertz Spectrum
Terahertz (THz) waves characterized by low energy, instantaneity and proficiency in spectral analysis have a promising futures in material identification. Although the existing substance identification methods based on THz have achieved certain effects, they are prone to fall into local optimization, resulting in low i
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2694 (2022)
Terahertz Absorption Characteristics of Low Temperature Liquid Water
Guo-yang WANG, Qing-hao MENG, Si-yu SHAO, Ping YE, Bo SU, and Cun-lin ZHANG
The photon energy of THz wave is only meV, which is much lower than the bond energy of various chemical bonds, so it will not cause harmful ionization reaction to biological tissues; on the other hand, because the characteristic energy of rotation and vibration of most biomolecules is in the THz range, THz wave can be
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2709 (2022)
Simulation of Emission Spectrum of Abyssal Methane Based on HITRAN Database
Qing-song LIU, You-quan DAN, Peng YANG, Luo-peng XU, Fu-bin YANG, and Nan DENG
The development of a deep-sea methane sensor that can accurately, in real-time and in-situ, obtain hydrothermal methane data is of great significance for deep-sea research. Previously, two kinds of optical imaging interference systems that use methane radiation spectrum to detect and retrieve methane state parameters h
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2714 (2022)
Study on the Tropospheric Column Density of NO2 in Shanghai Based on MAX-DOAS
Heng XU, Hao-ran LIU, Xiang-guang JI, Qi-hua LI, Guo-hua LIU, Jin-ping OU, and Peng-cheng ZHU
Nitrogen dioxide (NO2) is one of the main pollutants in the atmosphere, which plays a key role in tropospheric and stratospheric atmospheric chemistry processes. It not only participates in the catalytic formation of tropospheric ozone, but also contributes to the formation of aerosols, which leads to climate disasters
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2720 (2022)
Relationship Between Chlorophyll and Leaf Spectral Characteristics and Their Changes Under the Stress of Phyllostachys Praecox
Chlorophyll is an important physiological parameter reflecting the health status of green vegetation. The change mechanism of chlorophyll and leaf spectrum under pest stress is complex. It is of great significance to analyze the relationship between chlorophyll and leaf spectrum in depth for pest detection. Taking Shun
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2726 (2022)
Analysis and Identification of Terahertz Tartaric Acid Spectral Characteristic Region Based on Density Functional Theory and Bootstrapping Soft Shrinkage Method
Xin TANG, Sheng-ling ZHOU, Shi-ping ZHU, Ling-kai MA, Quan ZHENG, and Jing PU
Terahertz time-domain spectroscopy contains the chemical and physical information of samples and indicates the background information related to equipment noise, sample status and environmental parameters. Its diversified spectrum may affect the model’s performance and reduce the prediction accuracy. Therefore, extract
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2740 (2022)
Spectral Analysis of Human Tissues Based on a Direct Effective Attenuation Coefficient Measurement
Jin LIU, Run-juan FU, Tong-shuai HAN, Rong LIU, and Di SUN
In the tissue composition measurements in vivo based on diffuse spectroscopy, the tissue differences or variations could induce a big uncertainty. Monitoring the tissues’ optical characteristics is necessary to improve the measurement accuracy. The measurement with single light source detector separation (SDS) is not s
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2746 (2022)
Design of High-Throughput μ-EDXRF
Ming-bo LIU, Lei ZHAO, Xue-qiang HU, Zi-yue NI, Li-xia YANG, Yun-hai JIA, and Hai-zhou WANG
A high-through put μ-EDXRF instrument named NX-mapping with polycapillary optics and 4~6 SDD detectors placed symmetrically around the emitted focal spot was developed. We designed the software to control the X-ray source, multiple detectors, and high-precision stage and carried out the work of data collection, signal
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2752 (2022)
Theoretical Study on Raman Characteristic Peaks of Coronavirus Spike Protein Based on Deep Learning
Shuang NI, Jia-xing WEN, Min-jie ZHOU, Jing-lin HUANG, Wei LE, Guo CHEN, Zhi-bing HE, Bo LI, Song-nan ZHAO, Zong-qing ZHAO, and Kai DU
COVID-19, which has lasted for a year, has caused great damage to the global economy. In order to control COVID-19 effectively, rapid detection of COVID-19 (SARS-CoV-2) is an urgent problem. Spike protein is the detection point of Raman spectroscopy to detect SARS-CoV-2. The construction of spike protein Raman characte
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2757 (2022)
Study on Phase Transition of Myristic Acid by Two-Dimensional Infrared Spectroscopy
Zi-xuan LI, Hong LIU, Yan-dong ZHANG, Xiao-jing WU, and Long-jiu CHENG
Fatty acids have been used in organic solid-liquid transformation materials due to their low cost, high latent heat of phase transition and good thermal stability. Although thermogravimetry (TG) and differential scanning calorimetry (DSC) for fatty acids can obtain thermodynamic data, it is difficult to analyze structu
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2763 (2022)
A Mid-Infrared Spectral Inversion Model for Total Nitrogen Content of Farmland Soil in Southern Xinjiang
Zi-jin BAI, Jie PENG, De-fang LUO, Hai-hui CAI, Wen-jun JI, Zhou SHI, Wei-yang LIU, and Cai-yun YIN
Monitoring total nitrogen content rapidly and accurately in farmland soils can significantly improve the efficiency of soil fertility diagnosis and evaluation efficiency. Traditional methods for measuring total soil nitrogen have disadvantages such as time-consuming, high cost, and environmental pollution, while the qu
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2768 (2022)
Raman Spectroscopic Characteristic Structure Analysis and Rapid Identification of Food-Borne Pathogen Spores Based on SERS Technology
Shi-jie LIU, Yao-di ZHU, Miao-yun LI, Gai-ming ZHAO, Li-jun ZHAO, Yang-yang MA, and Na WANG
In order to explore the Raman fingerprint of food-borne pathogenic bacteria spores for rapid identification. In this study, the spores of C. perfringens, C. difficile and B. cereus were used as the research objects. The SERS technology of AgNPs synthesized by the sodium citrate reduction method was used to detect the R
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2774 (2022)
Robustness of Global Model of Soluble Solids in Gongli Pear Based on Near-Infrared Spectroscopy
Yan-de LIU, Jun LIAO, Bin LI, Xiao-gang JIANG, Ming-wang ZHU, Jin-liang YAO, and Qiu WANG
Gongpear is a popular fruit. In order to study the influence of different detection directions on the online detection of soluble solid SSC in Gongpear by NIR, a global model was proposed, and its robustness was analyzed. The spectra were collected from Gongpears in six directions: stem-calyx axis vertical, stem-upward
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2781 (2022)
Estimation of Soil Organic Carbon Content by Imaging Spectroscopy With Soil Roughness
Visible and near-infrared (VIS-NIR) non-imaging spectroscopy has been widely applied to estimate soil organic carbon (SOC) content. Due to the high demand for soil sample pretreatments, VIS-NIR non-imaging spectroscopy easily suffers from soil roughness in practical application. This study explored the potential of ima
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2788 (2022)
A Visual Colorimetric Method for Hydrogen Peroxide Detection Based on the Peroxidase-Like Properties of Cu(Ⅱ)
Ji MA, Guo-xia HUANG, Jun-sheng LI, Liu-juan YAN, and Qian ZHANG
Hydrogen peroxide (H2O2) is widely used in the food industry, environmental monitoring and analysis, fuel cell, clinical diagnosis and other fields. Hydrogen peroxide is not only a biomarker of severe diseases but also an important food additive. In terms of food safety and human health, it is of great significance to
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2795 (2022)
Research on Coal Species Identification Based on Near-Infrared Spectroscopy and Discriminant Analysis
Zi-yun HONG, Cheng-lin YAN, Hong MIN, Yan-jun XING, Chen LI, and Shu LIU
The information on coal species provides technical support for evaluation of coal quality and import and export tax. Traditional coal identification methods require the determination of indicators such as dry ash-free volatile matter, the light transmittance of low-rank coal, bonding index, the gross calorific value on
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2800 (2022)
Classification and Recognition of Adulterated Manuka Honey by Multi-Wavelength Laser-Induced Fluorescence
Si-ying CHEN, Yi-wen JIA, Yu-rong JIANG, He CHEN, Wen-hui YANG, Yu-peng LUO, Zhong-shi LI, Yin-chao ZHANG, and Pan GUO
Manuka honey is produced in New Zealand and has strong antibacterial and antioxidant effects. The price is relatively high, and adulteration incidents have occurred frequently in recent years. This paper uses laser-induced fluorescence (LIF) technology to classify and identify Manuka honey adulterated with syrup. Four
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2807 (2022)
Effects of Alternating Light Spectrum on the Mineral Element Level of Lettuce
Xiao-li CHEN, Li-chun WANG, You-li LI, and Wen-zhong GUO
Lettuce (Lactuca sativa) was cultured in a completely enclosed plant factory and irradiated with an intelligent LED light system with accurate regulation of spectral space-time distribution. Absorption and content of eight mineral elements such as K, P, Ca, Mg, Fe, Mn, Zn and Cu in Lactuca sativa exposed to alternating
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2813 (2022)
Analysis of Heavy Metal Cd in Cereal-Based Complementary Foods for Infants and Young Children by Inductively Coupled Plasma Tandem Mass Spectrometry (ICP-MS/MS)
Song-tao CAI, Hua-lin XIE, and Jian-hua HUANG
Cereal-based complementary food for infants and young children is an important energy source for infants and young children nutrition. The main raw material for the cereal-based complementary food is rice. While, rice can easily absorb heavy metal Cd from the soil and water in growing process, result in a relatively hi
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2818 (2022)
Determination of Phosphorus in Welding Flux by Inductively Coupled Plasma Atomic Emission Spectrometry With Ultrasonic Assisted Hydrochloric Acid Extraction
Pan LIU, Jing-bin LI, Jian-hao ZHANG, Yi ZHANG, Guo-liang CHANG, Peng-fei HE, Bin-bin ZHANG, and Xin-yao ZHANG
Welding flux, such as fused and agglomerated flux, are composed of various inorganic and organic minerals such as silicates, carbonates, oxides, fluorides, iron alloys and metal powder. They are prepared by smelting, sintering, binding or mixing. Welding flux would play an important role in slagging, deoxidation, gas m
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2824 (2022)
Support Vector Machine Optimized by Near-Infrared Spectroscopic Technique Combined With Grey Wolf Optimizer Algorithm to Realize Rapid Identification of Tobacco Origin
Ying-rui GENG, Huan-chao SHEN, Hong-fei NI, Yong CHEN, and Xue-song LIU
Tobacco is a natural plant with complex compositions, the quality of tobacco leaves is directly affected by several external factors such as geographic location and growth conditions. Tobacco leaves are widely planted in China, and they cultivated in different areas, they have different styles. Different blended ratios
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2830 (2022)
Quantitative Analysis of Soluble Solids and Titratable Acidity Content in Angeleno Plum by Near-Infrared Spectroscopy With BP-ANN and PLS
Soluble solid content (SSC) and titratable acidity (TA) are important indexes affecting the fruit quality and the fruit quality grading. Classical destructive detection methods are not suitable for fruit classification by quality. NIRS detection method is fast, easy to operate and can detect fruit quality without damag
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2836 (2022)
Papid Detection of Zilpaterol Residues in Pork by Surface-Enhanced Raman Spectroscopy
Xiang-hui DONG, Fang-wei YANG, Hang YU, Wei-rong YAO, and Yun-fei XIE
Zilpaterol is a β2-receptor agonist, also known as “Clenbuterol”, often used in livestock breeding by illegal businesses. There is no relevant national standard that stipulates its residue limit. After the veterinary drug enters the animal’s body, it can change the metabolic mode of certain nutrients, promote the growt
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2843 (2022)
Hyperspectral Visualization of Citrus Leaf Moisture Content Based on CARS-CNN
Water deficit of citrus leaves is one of the important factors affecting the growth of citrus. In order to study the effect of water stress on the moisture content of citrus, hyperspectral technology was used to rapidly and non-destructively detect the moisture content of citrus leaves, and pseudo-color processing was
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2848 (2022)
Study on Near-Infrared Spectroscopy and Hydrophobicity of PDMS Modified Epoxy Resin/Sm2O3 Composite Coating
Dan-dan LÜ, Hui-ru WEI, and Wei-gang ZHANG
Using polydimethylsiloxane (PDMS) modified epoxy resin (HYSZ) as a binder, Sm2O3 as a functional pigment, and nano-SiO2 as a micro-nano structural modifier, a near-infrared absorption coating with good hydrophobic properties and adhesion strength was prepared. The effects of the mass ratio of PDMS to HYSZ, DOP addition
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2855 (2022)
Multispectral Lightweight Ship Target Detection Algorithm for Sentinel-2 Satellite
Li CHEN, Shi-yong WANG, Si-li GAO, Chang TAN, and Lin-han LI
Recently, deep convolutional neural networks have made remarkable progress in visible light ship detection. However, most improve detection performance by improving large network structures, which require strong computer performance. In addition, the visible image is difficult to detect ships in the cloud, fog, sea clu
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2862 (2022)
Determination of Thallium in Blood of Occupational Exposed Population by Inductively Coupled Plasma Mass Spectrometry With High Matrix Introduction
Fei ZHANG, Xia HUA, Jia-ying YUAN, Fan YOU, Ren-cai YE, Li DING, and Jian-mei ZHAO
Tallium in the blood of occupationally exposed population may reflect their exposure in vivo. Therefore, it is very important to establish a method to determine thallium in blood. At present, there is no national standard method for the determination of thallium in blood in China, and the methods reported in domestic a
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2870 (2022)
Origin Traceability of Atractylodes Macrocephala Koidz. by Using Three-Way Fluorescence Coupled With Chemometrics
Wei CHEN, Hai-long WU, Tong WANG, Yue-yue CHANG, Yao CHEN, Jian YANG, Hai-yan FU, Xiao-long YANG, Xu-fu LI, and Ru-qin YU
Atractylodes macrocephala Koidz. (AM) is a famous traditional Chinese medicine, the quality of AM is directly related to the producing area, so it is urgent to find a method to quickly identify the quality of AM and trace its origin. AM contains various endogenous fluorescent substances, which can provide a basis for i
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2875 (2022)
Comparative Study on Mineralogical Identification and Spectral Characteristics of Four Iron-Containing Mineral Medicines
Li-qian ZHANG, and Yang-jie LIU
Pyrite, limonite, red ochre, and magnet are iron-containing mineral medicines. There are many fake or mixed-use phenomena in the market. This is directly related to the inaccuracy of mineralogical identification. This article aims to conduct mineralogical and spectroscopic identification of four iron-containing mineral
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2884 (2022)
Microscopic Raman Spectroscopy for Diagnosing Roots in Apple Rootstock Under Heavy Metal Copper Stress
Heavy metal pollution will affect the normal growth of crops, and quickly detecting the content of heavy metals in crops has become a problem to be investigated. The traditional detection of heavy metals in plants depends on chemical methods. Although it can realize the high accurate detection of heavy metal content, i
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2890 (2022)
Construction of Near-Infrared Model of Peanut Sugar Content in Different Seed Coat Colors
Miao CHEN, Ming-yu HOU, Shun-li CUI, Zhen LI, Guo-jun MU, Ying-ru LIU, Xiu-kun LI, and Li-feng LIU
The sugar content of peanut seeds is an important indicator that affects the quality of eating. Establishing a method for rapidly determining sugar content can effectively improve the detection efficiency of edible peanuts. The appearance color of the sample is one of the important factors that affect the near-infrared
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2896 (2022)
Identification of True and Counterfeit Banknotes Based on Hyperspectral Imaging
Zhen-qing ZHANG, Li-juan DONG, Yu HUANG, Xing-hai CHEN, Wei HUANG, and Yong SUN
RMB is the legal currency of the people’s Republic of China. The authenticity of RMB is directly related to the harmony and stability of the society. As the most significant denomination bill in China, identifying the authenticity of 100 yuan RMB is more critical. In the paper, we use the visible/near-infrared hyperspe
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2903 (2022)
Study on Maize Leaf Nitrogen Inversion Model Based on Equivalent Water Thickness Gradient
Xi WANG, Gui-fen CHEN, Li-ying CAO, and Li MA
According to the actual need for rapid and non-destructive testing methods for nitrogen in maize production. Samples were divided according to the equivalent water thickness gradient, and a gradient continuous leaf nitrogen inversion model was established. The influence of water content on leaf reflectance characterist
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2913 (2022)
Fluorescence Spectrum Characteristics of DOC in Black Soil Under Organic Substitution of Chemical Nitrogen Fertilizer
Jiu-ming ZHANG, En-jun KUANG, Feng-qin CHI, Yi-dan LIU, Bao-ku ZHOU, Xiao-yu XIA, Xiao-jun WANG, Lei SUN, Ben-chao CHANG, and Dan WEI
The combined application of organic and inorganic fertilizer is an effective measure to improve soil fertility and reduce the application of inorganic fertilizer. In order to investigate the effect of organic fertilizer instead of inorganic fertilizer (nitrogen fertilizer) on the content and structure of DOC in black s
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2919 (2022)
Prediction of Organic Matter Content in Sandy Fluvo-Aquic Soil by Visible-Near Infrared Spectroscopy
Xiang-jun ZHONG, Li YANG, Dong-xing ZHANG, Tao CUI, Xian-tao HE, and Zhao-hui DU
Soil Organic Matter (SOM) is a crucial soil parameter that affects the sowing rate. Real-time control of the sowing rate based on SOM information is the cutting-edge research area of planting technology, which can make full use of land resources to tap the yield potential, accurately and adequately adjust the number of
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2924 (2022)
Hyperspectral Detection of Soybean Heart-Eating Insect Pests Based on Image Retrieval
Jiang-sheng GUI, Jie HE, and Xia-ping FU
To reduce the impact of insect pests on soybeans, first use the corresponding hyperspectral instrument to collect samples. The samples are divided into 4 categories: those with tiny eggs, those with larvae, those with nibbling marks, and those with entirely normal soybeans. 20 Then, a hyperspectral detection method of
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2931 (2022)
Hyperspectral Inversion Model of Pectin Content in Wheat Under Salt and Physical Damage Stresses
Zhao-jia PIAO, Hai-ye YU, Jun-he ZHANG, Hai-gen ZHOU, Shuang LIU, Li-juan KONG, and Jing-min DANG
Wheat is the primary grain crop in our country and plays a pivotal role in developing the national economy. However, abiotic stress factors such as salt and physical damage have gradually become essential factors restricting wheat yield and quality. Studies have shown that the cell wall is an important line of defence
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2935 (2022)
Preparation and Spectra Study of Artificially Degraded Waterlogged Wood
Meng-ruo WU, Zhen-fang QIN, Liu-yang HAN, and Xiang-na HAN
The preservation states of excavated/salvaged waterlogged wooden artifacts vary greatly. The inhomogeneity of degradation and restricted acquirement of sampling make many necessary qualitative or quantitative analyses of wood properties and protection effect evaluation tests difficult to carry out. Therefore, it is urg
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2941 (2022)
A Classification Method of Coal and Gangue Based on XGBoost and Visible-Near Infrared Spectroscopy
Rui LI, Bo LI, Xue-wen WANG, Tao LIU, Lian-jie LI, and Shu-xiang FAN
Intelligent recognition of coal and gangue is a new technology that needs to be developed urgently to realize the intelligentization of fully mechanized caving mining. Visible-near infrared spectroscopy technology has many advantages such as environmental friendly and real-time, which meets the requirements of intellig
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2947 (2022)
Characteristic Emission Spectrum Analysis and Discharge Identification on the Development Process of Air Corona Discharge
Yan-fei LI, Dong HAN, Zong-jia QIU, Kang LI, Yi-kun ZHAO, Liu-jie WAN, and Guo-qiang ZHANG
Partial discharge of air is an important factor causing insulation deterioration of high voltage electrical equipment. The emission spectrum information in air discharge has close relationship with the discharge characteristics. In this paper, the development process of air corona discharge was simulated by needle-plat
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2956 (2022)
Research on the Selection of False Targets of Natural Objects in Laser Angle Deception Jamming
Jian-lu HUANG, Tao SHEN, Yang YANG, and Bo-xiong FAN
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2963 (2022)
Hyperspectral Latent Period Diagnosis of Tomato Gray Mold Based on TLBO-ELM Model
Tomato leaves in the infection of disease occurred after the first internal physiological reaction, the naked eye can not observe, from the blade infection to the appearance of visible disease spots, for the left disease latent period. In order to achieve the tomato leaf surface did not see obvious disease spots of gra
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2969 (2022)
Multispectral Image Compression and Encryption Algorithm Based on Chaos and Fast Wavelet Transform
Dong-dong XU, Xin YU, Li-min DU, and Guo-ling BI
A multispectral image compression and encryption algorithm that combines chaos, wavelet transform and KL transform is proposed for solving the security problem of multi-spectral image compression and transmission. Firstly, the K-means clustering scheme is used to cluster multi-spectral images into common pixels, and th
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2976 (2022)
Raman Spectroscopy Analysis and Formation Mechanism of Carbon Nanotubes Doped Polyacrylonitrile/Copper Cyclized to Graphite at Room Temperature
Nan SUN, Hong-lin TAN, Zheng-dong ZHANG, Xiang REN, Yan ZHOU, Jian-qi LIU, Xiao-ming CAI, and Jin-ming CAI
Graphite carbonaceous materials are widely used in electronic equipment, composite materials, batteries, and sensors because of their good electrical, mechanical and thermal properties. However, the current high energy consumption, high pollution, high cost, and uncontrollable production is the core problem that needs
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 01, 2022
  • Vol. 42, Issue 9, 2983 (2022)