Contents
2021
Volume: 41 Issue 4
53 Article(s)

Export citation format
Fluorescence Enhancement and Conformational Studies of Coenzyme NADH With Aluminum
ZHANG Meng-jie, CAO Si-min, WANG Meng-yu, LI Hao-yang, LI Dong, ZHAO Ze-nan, and XU Jian-hua
Nicotinamide adenine dinucleotide (reduced form) (NADH), as an important coenzyme molecule in enzymes, is ubiquitously involved in the organism and plays a key role in cellular energy metabolism. Metal ions can affect the NADH participating enzymes reactions. Aluminum ions (Al3+) are toxic to the nervous system and can
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 997 (2021)
Inversion of Ionospheric O/N2 by Using FY-3D Ionospheric Photometer Data
WANG Da-xin, FU Li-ping, JIANG Fang, JIA Nan, WANG Tian-fang, and DOU Shuang-tuan
Space weather events such as magnetic storms can cause significant changes in the concentration of the neutral components O and N2 in the thermosphere. Therefore, the ratio of the column density of oxygen atom to nitrogen molecule O/N2 is often used as a sign of the ionosphere’s disturbance. The results have shown that
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1004 (2021)
Research on Nondestructive and Noninvasive Detection Technology of Cells Based on Supercontinuum Spectrum
WANG Hong-peng, FANG Pei-pei, MA Huan-zhen, WAN Xiong, JIA Jian-jun, HE Zhi-ping, and LING Zong-cheng
China has abundant genetic resources under the huge population base. Foreign countries may illegally plunder these resources to obtain benefits. There may be some security risks in the process of illegal plunder, such as the spread of infectious diseases. It has become a new problem of biosafety to strengthen the prote
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1011 (2021)
Advance in Raman Spectroscopy for Pathological Diagnosis
WANG Qian-qian, XIANGLI Wen-ting, TENG Geer, CUI Xu-tai, and WEI Kai
Raman spectroscopy can provide the spectral information related to the specific molecular structure of the substance, and recognize the tiny biochemical variation of biological tissue. It is a promising diagnosis technology in clinical applications due to the advantages of fast, real-time, non-destructive detection wit
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1016 (2021)
Advances in the Application of Frster Resonance Energy Transfer and Fluorescence Lifetime Imaging Microscopy (FRET-FLIM) Technique in Life Science Research
LUO Lin-lin, NIU Jing-jing, MO Bei-xin, LIN Dan-ying, and LIU Lin
Cell is the basic unit of structure and biological activities of animals and plants. An important feature of cellular processes is that the biochemical components involved in it have spatiotemporally interacted with each other. However, it is difficult to evaluate molecular interactions in living cells using traditiona
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1023 (2021)
Research Progress of Bionic Materials Simulating Vegetation Visible-Near Infrared Reflectance Spectra
XIE Dong-jin, L Cheng-long, ZU Mei, and CHENG Hai-feng
Imaging spectrum technology can obtain the image and spectral characteristics of the target at the same time, and it is easy to identify the traditional camouflage materials whose spectrum are different from the background spectrum. In recent years, imaging spectrum has been developed rapidly, which has experienced the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1032 (2021)
Microfludic Refractive Index Sensor Based on Terahertz Metamaterials
XIE Ming-zhen, ZHANG Yang, FU Wei-ling, and HE Jin-chun
Terahertz biomedicine is a hot spot in the field of spectroscopy. The main difficulty lies in how to effectively avoid the interference of moisture and perform sensitive analysis and detection of samples in the liquid environment. Metamaterials terahertz sensors have become an important research method in the field of
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1039 (2021)
Study on Terahertz Spectroscopy Detection of Low Concentration Imidaclopridon Metamaterials
HUO Shuai-nan, LI Bin, ZHANG Li-qiong, QI Li-mei, and WANG Ming-wei
As a type of nitromethylene nicotine insecticide, midacloprid has been widely used in agricultural production due to its wide-spectrum, high efficiency and low toxicity. However, its excessive residue poses a threat to human health. We first analyze the terahertz transmission spectrum of the metamaterial structure and
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1044 (2021)
Study on the Fluorescence Emission Characteristics and Change Mechanism of Polysaccharide on White Blood Cell
XIE Wen-jing, WANG Jing-jing, LIU Ying, DING Zhou, and LIU Ying
The stability of the cell microenvironment is an essential condition to maintain healthy cell proliferation, metabolism, and functional activities, and the abnormality of microenvironment components can cause pathological cell changes. In this paper, the fluorescence emission characteristics and mechanism of white bloo
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1050 (2021)
Detection of Advanced Glycosylation End Products by Fluorescence Spectroscopy
XIE Xue-wei, ZHONG Hao-chen, CHEN Zhen-cheng, HE Min, and ZHU Jian-ming
Advanced glycation end products (AGEs) are a kind of compounds with various structures. When the blood sugar is higher than a normal value, it will be produced in large quantities and cannot be metabolized by the body’s own metabolism, and has a memory function of long-term abnormal blood sugar. Studies have shown that
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1055 (2021)
Phosphor-Converted White Light-Emitting Diodes for Plant Lighting
CAO Li, ZHENG Zi-shan, ZHANG Hong, LIANG Pei, ZHU Qiang-qiang, and WANG Le
LED has the advantages of high efficiency, small size, low power consumption, long life and son on, and it can easily achieve wide spectral regulation, which makes it stand out in the field of agriculture. Plant-growth light-emitting diodes (LEDs) can be divided into two categories, one is monochromatic LED, and the ot
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1060 (2021)
A Fluorescence Aptasensor for Detecting Silver Ion Concentration in Aqueous Environment
JIANG Li-ying, XU Xiao-ping, QIN Zi-rui, ZHANG Pei, MENG Xiao-long, REN Lin-jiao, and WANG Wei
Silver is widely used in medical materials, photography, electronics, imaging and other industries because of its unique properties. However, silver ions are listed as one of the most toxic heavy metal ions, which poses a serious threat to the environment and human health. In order to detect the concentration of silver
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1066 (2021)
Measurements of H2O Spectroscopic Parameters Based on the Tunable Diode Laser Absorption Spectroscopy
QU Dong-sheng, HONG Yan-ji, and ZHU Xiao-hui
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1072 (2021)
Differences in Adsorption of Anionic Surfactant AOT by Calcium Oxalate Dihydrate With Different Morphologies
TANG Gu-hua, ZHANG Hui, SUN Xin-yuan, XU Meng, and OUYANG Jian-ming
There are many biosurfactant substances in human urine, and the adsorption relationship between these substances and calcium oxalate crystallites with different morphologies has not received widespread attention. In this study, the commonly used anionic surfactant sodium dioctyl sulfosuccinate (AOT) was selected as the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1079 (2021)
Parallel Extraction and Analysis of Abnormal Features of QSO Spectra Based on Sparse Subspace
MA Yang, ZHANG Ji-fu, CAI Jiang-hui, YANG Hai-feng, and ZHAO Xu-jun
Quasi-Stellar Object (QSO), the most distant celestial body observed by humans, has important scientific value for the universe evolution.Quasars are far away from the earth, and their redshift values are large, which results in few features appearing in the optical observation window. Hence, constructing a QSO templat
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1086 (2021)
Research on Reflection Spectrum Reconstruction Algorithm Based on Compressed Sensing
ZHAO Shou-bo, and LI Xiu-hong
The spectral reflectance describes the surface color characteristics of the object. In order to obtain more accurate color information of the object, the spectral reflectance reconstruction in the image processing field has become a hot topic. We take the spectral reflectance as the main research target. Sequentially,
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1092 (2021)
Quantitative Analysis of Near Infrared Spectroscopy Based on Orthogonal Matching Pursuit Algorithm
LI Si-hai, and LIU Dong-ling
Compressed sensing (CS) is a new technology of signal compression and sampling. Orthogonal Matching Pursuit (OMP), a greedy tracking algorithm, is widely used in sparse signal reconstruction in the compressed sensing field. In connection with the characteristics of high-dimensional small samples of near-infrared spectr
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1097 (2021)
Measurement of Vapor Hydrogen Peroxide Based on Mid Infrared Absorption Spectroscopy
PAN Sun-qiang, HU Peng-bing, CHEN Zhe-min, ZHANG Jian-feng, and LIU Su-mei
Vapor hydrogen peroxide is a strong oxidant. The final product is water and oxygen. It has the advantages of no residue, safety, rapid disinfection and wide material compatibility. Vapor hydrogen peroxide sterilization is widely used in pharmaceutical, medical, health, and biosafety fields to ensure the safety of drugs
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1102 (2021)
Study on the Interaction Between Carbon Quantum Dots and Human Serum Albumin by Spectroscopic Methods
HU Jing-jing, and TONG Chang-lun
The potential risk of nanomaterials to the environment and human health has caused widespread concernin recent years. Because of their small size and high reactivity, nanoparticles are likely to interact with biological macromolecules in vivo when they enter into the organisms. Therefore their original physical and che
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1107 (2021)
A Review of Calibration Transfer Based on Spectral Technology
LI Xue-ying, FAN Ping-ping, HOU Guang-li, QIU Hui-min, and L Hong-min
Generally, the multivariate calibration model based on spectroscopy is only for the same instrument, the same test conditions and the same batch or similar samples. However, with the increasing demand for spectral application, the problem that different samples cannot share the spectral model has become the fundamental
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1114 (2021)
Research on a Quantitative Regression Model of the Infrared Spectrum Based on the Integrated Learning Algorithm
JIANG Wei-wei, LU Chang-hua, ZHANG Yu-jun, JU Wei, WANG Ji-zhou, OU Chun-sheng, and XIAO Ming-xia
In recent years, deep learning has been studied more and more in the field of data mining, and the integrated learning algorithm in deep learning has been applied to classification and quantitative regression more and more, but the application of integrated learning in the field of infrared spectrum analysis is little.
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1119 (2021)
Research on Numerical Model of Nano-FTIR System Based on COMSOL
CHEN Nan, WANG Yue, WANG Bo-yu, XIA Yang, and LIU Tao
Fourier infrared spectroscopy (FTIR) technology is an important method for material characterization. However, it is limited by the diffraction limit. The spatial resolution limit of traditional Fourier infrared spectrometer is on the order of micrometers and cannot be applied to the characterization of nanomaterials.
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1125 (2021)
Tropospheric 3D Winds Measurement Based on Cross-Platform Infrared Hyperspectral Observation
YANG Tian-hang, GU Ming-jian, HU Xiu-qing, WU Chun-qiang, QI Cheng-li, and SHAO Chun-yuan
Precise wind field data is essential for improving the accuracy of the numerical weather forecast, and tropospheric winds are not satisfied with the requirements as one of the key measurement objectives for improving weather forecasts. Although meteorological satellite-based imager derived winds by tracking the motion
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1131 (2021)
Spectroscopic Analysis of Reinforcing-Flame Retardant Mechanism of Modified Steel Slag-Mineral Powder Composite Rubber Filler
ZHANG Hao, LI Hai-li, LONG Hong-ming, LIU Zi-min, ZHANG Yao-hui, and ZHENG Wei-cheng
Steel slag is a solid waste in the process of steelmaking, and slag is a by-product in the ironmaking process of the blast furnace, it has the problem of hard to use and added value. In the face of the above problems, the development of an inexpensive composite rubber filler is used for rubber field. Magnetic hot brais
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1138 (2021)
Measurement Method of Two-Dimensional Distribution of Temperature and Components in Gas Turbine Combustor Based on Wavelength Modulated Absorption Spectroscopy
HUANG An, XU Zhen-yu, XIA Hui-hui, YAO Lu, RUAN Jun, HU Jia-yi, ZANG Yi-peng, and KAN Rui-feng
Tunable diode laser absorption spectroscopy (TDLAS) can realize the simultaneous measurement of multiple parameters such as temperature and component concentration, which has the advantages of small size, fast response and high environmental adaptability, so the technology has gradually become a major tool of combustio
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1144 (2021)
Study on the Number Density of Underwater Welding Arc Plasma Under Different Water Depth
LI Zhi-gang, ZHANG Shi-shuai, LIU De-jun, XU Xiang, and YE Jian-xiong
The application of underwater wet welding technology is becoming more and more extensive. Due to the special welding conditions, the welding quality in deep water should be improved. This paper simulates water depths of 0.3, 20 and 40 m respectively by building an underwater wet welding experiment platform and adjustin
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1151 (2021)
Conformal Coating Thickness Measurement on Printed Circuit Board With Spectral Domain Optical Coherence Tomography
ZHU Jie, WU Qian, SHAO Xiao, YU Xiao-jun, LIU Lin-bo, DAI Jia-ning, and MO Jian-hua
Conformal coating is a protective coating widely used for protecting printed circuit board (PCB) from harsh environmental conditions. The conformal coating’s thickness is one of the key parameters for evaluating the quality of conformal coating, and thus the thickness needs to be measured before PCB assembling. In this
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1157 (2021)
Effects of Different Molecular Weight of Gracilaria Lemaneiformis Polysaccharide on Calcium Oxalate Crystal
HUANG Wei-bo, CHEN Jia-yun, HUANG Fang, HUANG Li-shan, and OUYANG Jian-ming
Plant polysaccharides’ chemical structures are similar to that of glucosaminoglycan, a stone inhibitor in urine; thus plant polysaccharides may be used to prevent and treat kidney stones. However, the applications of natural polysaccharides are limited due to their large molecular weights and volume. In this study, the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1163 (2021)
Spectral Analysis of Changes in Photosynthetic Pigment Composition in Leaves of Sweet Cherry Tree Under Rain-Shelter Cultivation Based on
ZHANG Hui-min, HOU Qian-dong, WU Ya-wei, TU Kai, LI Quan, and WEN Xiao-peng
To improve the of quality and yield of sweet cherry fruits, sweet cherry trees were cultivated under rain-shelter to avoid the problems of low fruit setting rate, falling fruit and fruit malformation in southern China. Sweet cherry trees under rain-shelter cultivation had an obvious negative effect on photosynthesis. I
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1171 (2021)
Study on the Indetification of the Geographical Origin of Cherries Using Raman Spectroscopy and LSTM
LU Shi-yang, ZHANG Lei-lei, PAN Jia-rong, YANG De-hong, SUI Ya-nan, and ZHU Cheng
At present, there are a lot of unhealthy phenomena in the cherry market, which have seriously damaged the economic benefit of famous cherry brands. As a kind of spectrum tracing technology, Raman spectrum tracing technology has been paid more and more attention because of its advantages of fast-speed, high efficiency,
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1177 (2021)
Quantitative Damage Identification of Lingwu Long Jujube Based on Visible Near-Infrared Hyperspectral Imaging
YUAN Rui-rui, LIU Gui-shan, HE Jian-guo, KANG Ning-bo, BAN Jing-jing, and MA Li-min
The visible near-infrared (Vis-NIR) hyperspectral imaging technology was used to identify the intact and damaged Lingwu long jujube rapidly. In this study, damage grades, including Ⅰ, Ⅱ, Ⅲ, Ⅳ and Ⅴ of Lingwu long jujubes were obtained by using quantitative damage devices. Hyperspectral images of intact and damaged samp
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1182 (2021)
Nondestructive Detection Method of Mung Bean Origin Based on Optimized NIR Spectral Wavenumber
HUANG Yan, WANG Lu, GUAN Hai-ou, ZUO Feng, and QIAN Li-li
Origin is an important environmental factor affecting crop production, and tracing the origin is of great significance for food safety. The chemical analysis method is generally used in traditional agricultural product origin detection, and its operation is cumbersome, destructive and time-consuming. In this study, nor
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1188 (2021)
Using Spectroscopy Methods to Analyze the Key Textural Characteristics of Fermented Milk With High Creaminess Intensity
ZHOU Bing, LIU Tian-shu, MU Shuo, WANG Peng-jie, SHEN Qing-wu, and LUO Jie
Creaminess is one of the most favorite sensory properites of fermented milk for consumers, reflecting the pleasant characteristics. To develop fermented milk with high creaminess intensity without additional additives, the key textural characteristics of fermented milk with high creaminess intensity should be revealed.
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1194 (2021)
Compositional and Structural Evolutions of Dissolved Organic Compounds During Composting of Wheat Straw
YU Xu-fang, ZHOU Jun, REN Lan-tian, WANG Yan, FAN Xing-jun, LI Xiao-liang, LI Fei-yue, and WANG Xiang
Composting is one of the effective ways for wheat straw utilization. However, the relevant study on solewheat straw composting is still constrained. Dissolved organic matter (DOM) is widely believed to be the most activeorganic matters during composting, and then it can be seen as an indicator for investigating the com
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1199 (2021)
Estimation of Above-Ground Biomass of Potato Based on Wavelet Analysis
LIU Yang, SUN Qian, FENG Hai-kuan, and YANG Fu-qin
It is essential to estimate above-ground biomass (AGB) quickly and accurately, and AGB is an important indicator of crop growth evaluation and yield prediction. Due to the saturation of AGB in multiple growth periods estimated by traditional vegetation indexes (VIs). Therefore, the study attempts to use VIs combined hi
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1205 (2021)
PLS-Discriminant Analysis on Potato Blackheart Disease Based on VIS-NIR Transmission Spectroscopy
HAN Ya-fen, L Cheng-xu, YUAN Yan-wei, YANG Bing-nan, ZHAO Qing-liang, CAO You-fu, and YIN Xue-qing
Potato blackheart disease is an internal defect, which decreases the quality and yield of potato processed products such as fries, chips and whole powder. At present, the classification of potatoes mainly focuses on their external quality, rather than internal defects. The purpose of this research was to develop a fast
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1213 (2021)
Prediction Model of Rice Panicles Blast Disease Degree Based on Canopy Hyperspectral Reflectance
HAN Yu, LIU Huan-jun, ZHANG Xin-le, YU Zi-yang, MENG Xiang-tian, KONG Fan-chang, SONG Shao-zhong, and HAN Jing
Quantitative prediction of disease degree of rice panicle and neck blast is essential on accurate prevention and control measures. The study of field canopy scale can provide a theoretical basis for hyperspectral sensors. In this paper, the rice which was damaged by panicle and neck blast was regarded as the research o
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1220 (2021)
Research on Rice Leaf Area Index Inversion Model Based on Improved QGA-ELM Algorithm
SU Zhong-bin, LU Yi-wei, GU Jun-tao, GAO Rui, MA Zheng, and KONG Qing-ming
In order to accurately and reliably obtain LAI of rice of different fertilization gradients and varieties through vegetation index (VI), an improved QGA-ELM algorithm was proposed in this paper for LAI inversion of rice. This model firstly determined by 8 fold cross-validation extreme learning machine (ELM) optimal num
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1227 (2021)
Removing the Effects of Water From Visible-Near Infrared Spectra in Soil Profiles for the Estimation of Organic Carbon
LI Shuo, LI Chun-lian, CHEN Song-chao, XU Dong-yun, and SHI Zhou
The terrestrial carbon cycle is the most important constitution and plays a prominent role in global carbon cycle, and soil carbon sequestration makes an important contribution to the global climate change. The full soil profile is a highly dynamic component of the ecosystem, with pronounced depth-dependent processing
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1234 (2021)
Fluorescence Spectra Characteristics of Reclaimed Water to Replenish Constructed Wetlands Using EEM-PARAFAC
JIN Bai-chuan, JIANG Meng-yun, BAI Wen-rong, LIU Wei-yi, LIN Zu-hong, MENG Yuan, and ZHANG Ting-ting
Three-dimensional excitation-emission matrix fluorescence technology and parallel factor analysis were conducted to investigate the spectral characteristics and pollution source of dissolved organic matter (DOM) in a subsurface flow-surface flow combined constructed wetland in north China. This study provided a scienti
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1240 (2021)
Infrared Spectral Characteristics and Composition of the “Oily Turquoise” in Zhushan, Hubei
CHEN Quan-li, DING Wei, XU Feng-shun, LIU Xian-yu, and WANG Hai-tao
In recent years, a relatively unique turquoise variety has been found in the Xiaolinpa ore district in Qingu Town, Zhushan County, Shiyan City of Hubei Province. The color of this turquoise variety is mostly light green, light yellow green, or light apple green. The rough material is slippery feel and brittle. As a res
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1246 (2021)
Spectral Characteristics of Moso Bamboo Leaves Damaged by Pantana Phyllostachysae Chao and Monitoring of Pest Rating
HUANG Xu-ying, XU Zhang-hua, WANG Xiao-ping, YANG Xu, JU Wei-min, HU Xin-yu, LI Kai, and CHEN Yun-zhi
Understanding the spectral characteristics of moso bamboo leaves damaged by Pantana phyllostachysae Chao can provide theoretical guidance for developing applicable and effective technologies to monitor the ecological safety of the bamboo forest. Compared with the traditional multispectral data, hyperspectral remote sen
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1253 (2021)
A NIR Study on Hydrogen Bonds of Bamboo-Based Cellulose Ⅱ
DONG Pei-jie, ZHANG Wen-bo, and LU Wei
Cellulose is a renewable natural hydrophilic polymer, and its huge hydrogen bond grid forms a variety of different crystal structures. There are five crystalline variants of cellulose (cellulose Ⅰ, Ⅱ, Ⅲ, Ⅳ and Ⅹ), of which cellulose Ⅱ is formed from cellulose Ⅰ (natural cellulose) after regeneration or mercerization, i
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1260 (2021)
Research on Martian Mineral Analysis Based on Remote LIBS-Raman Spectroscopy
YUAN Ru-jun, WAN Xiong, and WANG Hong-peng
This paper implements the design of a set of LIBS-Raman test systems in a laboratory environment. Based on the system’s LIBS and Raman spectroscopy techniques, it is used to verify the comprehensive detection capabilities of mineral samples in the Martian simulated environment. This system uses the Cassegrain telescope
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1265 (2021)
Raman Spectral Analysis on a Special Band of Nanhong Agate
GUO Mei, WANG Wen-wei, LIU Hao, LU Zhuo, and YIN Zuo-wei
Nanhong agate is a special kind of agate, because of its moist texture and bright color, it is accepted by most consumers. Special band with transparent edges and the obvious inner boundary is often found in Nanhong agate, which is rarely mentioned in the study of Nanhong agate. This article uses micro-laser Raman spec
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1271 (2021)
Spectral Analysis of Organic Carbon in Geological Samples
ZHANG Ling-huo, MA Na, CHEN Hai-jie, JI Qiang, GUO Xin-wei, ZHANG Peng-peng, HU Meng-ying, BAI Jin-feng, and ZHANG Qin
Organic carbon is one of the indispensable indexes in multi-target geochemical surveys, land quality geochemical surveys and other project studies. Accurate quantification of organic carbon is an important part of the geochemical survey with great significance. However, the traditional gravimetric method and volumetric
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1276 (2021)
Influence Mechanism and Analysis of Infrared Spectrum of NH+4 and F- on Fluorite Flotation
LIN Jia-wei, LI Jie, WU Jing-xuan, LI Min, and ZHANG Wen-hao
During the flotation process of fluorite, NH+4 and F- in the slurry have important effects on fluorite’s flotability of fluorite. At present, the research about the effects of inevitable cations on floatation mainly focus on the activation or inhibition mechanism of metal cations, but there is less research about the e
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1281 (2021)
Research on Improved Stacked Sparse Autoencoders for Mineral Hyperspectral Endmember Extraction
ZHU Ling, QIN Kai, LI Ming, and ZHAO Ying-jun
Rocks in nature are usually aggregates of various minerals. Due to the low spatial resolution of hyperspectral sensors, the hyperspectral data obtained are mostly the mixing spectrum of mineral components. Affected by factors such as noise interference and intimate mixing characteristics of minerals, endmember extracti
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1288 (2021)
Comparative Study on Spectroscopic Characteristics and Coloration Mechanism of Nephrite From Dahua and Luodian
JIANG Cui, PENG Fan, WANG Wen-wei, and YIN Zuo-wei
Nephrites from Dahua Yao Autonomous County, Guangxi Zhuang Autonomous Region and nephrites from Luodian County, Guizhou province have formed mining scales, both of which have many similar and different characteristics in gemology, spectroscopy and mineralogy. In recent years, a large number of nephrites from these two
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1294 (2021)
Influences on Baltic Amber Spectral Characteristics Under Thermal Optimization With Multiple Conditions
DAI Li-li, SHI Guang-hai, YUAN Ye, JIANG Xue, and LIU Wen-qing
Possibly Derived from ancient Pinaceae pinus or Cedrusplants, ancient Araucariaceae Agathis plants or ancient Sciadopityaceae Sciadopitys plants, Baltic ambers are the natural fossilized resins undergone a variety of geological reworkings. Incorporating succinic acid Baltic ambers are based on labdanoid diterpenes with
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1300 (2021)
Scientific and Technological Analysis of Jades Unearthed From Cemeteries Dated to Eastern Zhou Dynasty From Tomb No.1 in Hougudui, Gushi, Henan Province
YUAN Yi-meng, HU Yong-qing, LIU Song, and LI Qing-hui
Ancient jade artifacts are not only ornaments, but also contain rich cultural meanings. In order to explore the relationship among the material properties, processing techniques and object functions of archaicjade, this paper selected 10 jade wares unearthed from No.1 tomb in Hougudui, Gushi, Henan province, using non-
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1306 (2021)
Terahertz Spectral Characteristics of Rocks With Different Lithologies
MIAO Xin-yang, LIU Xue-cong, CHEN Meng-xi, CHEN Si-tong, ZHANG Shan-zhe, LU Wan-ting, PENG Xue, ZHAN Hong-lei, ZHU Ming-da, and ZHAO Kun
Determining the types of rock is crucial to understand the origin and history of geological units. The recognition and classification of lithologies are usually performed by experienced researchers based on the colors and morphologies with the accuracy not guaranteed, particularly when trying to distinguish between uni
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1314 (2021)
A Method for Judging the Fermentation Quality of Congou Based on Hyperspectral
YANG Chong-shan, DONG Chun-wang, JIANG Yong-wen, AN Ting, and ZHAO Yan
Fermentation is a crucial process that affects the quality of black tea. The quality of fermentation is mainly judged on artificial experience, hence making it difficult to accomplish an accurate and objective evaluation. The objective of this study is to investigate the fermentation quality of Congou at different time
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol. 41, Issue 4, 1320 (2021)