Contents
2009
Volume: 29 Issue 6
68 Article(s)

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Research on AlInGaN Quaternary Alloys as MQW Barriers in GaN-Based Laser Diodes
Wei-hua CHEN, Hui LIAO, Xiao-dong HU, Rui LI, Quan-jie JIA, Yuan-hao JIN, Wei-min DU, Zhi-jian YANG, and Guo-yi ZHANG
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1441 (2009)
Applications of Terahertz Spectroscopy and Imaging Techniques in Food Safety Inspection
Fei SHEN, and Yi-bin YING
With the development of ultra-fast laser technology and the further understanding of the mechanism behind the interaction of terahertz radiation and materials, THz radiation is actively developed as a new-style technology for a wide range of applications. Currently THz spectroscopy and imaging techniques show great pro
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1445 (2009)
Time-Resolved Photoluminescence of Stimulated Emission from ZnO Nanoparticles
Xiao-fang WANG, Ping-bo XIE, Fu-li ZHAO, and He-zhou WANG
The detailed room-temperature stimulated emission including its optical characteristics from nanosized ZnO particles prepared by homogenous precipitation method was investigated by time-resolved spectroscopy both from the frequency domain and time domain. As the excitation power was increased, sharp lasing peaks with t
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1459 (2009)
Study of CO2 Spectroscopic Parameters at High Temperature near 1.57 μm
Ting-dong CAI, Gui-shi WANG, Wei-dong CHEN, Wei-jun ZHANG, and Xiao-ming GAO
Measurements strategies based on absorption spectroscopy techniques, especially the measurements in high temperature, require accurate values of important spectroscopic parameters of the probed species. Sometimes the parameters listed in widely used HITRAN and HITEMP2004 database are uncertain to some extent. In order
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1463 (2009)
Dual-Wavelength Mie Lidar Observations of Tropospheric Aerosols
Ru-li CHI, De-cheng WU, Bo LIU, and Jun ZHOU
A new dual-wavelength Mie lidar (DWL) is introduced. The DWL can be used to monitor the optical properties of tropospheric aerosol at 532 and 1 064 nm wavelength and their spatial and temporal variations, and to research aerosol size distribution with altitude. This lidar adopted four channels to receive the far and ne
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1468 (2009)
Colon Adenoma Detection Using Kubelka-Munk Spectral Function of DNA and Protein Bands
Hua-jiang WEI, Zhou-yi GUO, Shu-sen XIE, Bo-hua HE, Li-bo LI, Xue-mei CHEN, Guo-yong WU, and Jian-jun LU
Differential diagnosis of human colon adenoma was studied using the Kubelka-Munk spectral function of the DNA and protein absorption bands at 260 and 280 nm in vitro. Diffuse reflectance spectra of tissue were measured using a spectrophotometer with an integrating sphere attachment. The results of measurement showed th
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1473 (2009)
Synthesis of 1,2,5-Triphenyl-Pyrrole and Effect of Its Aggregation Degree on Photoluminescence Intensity
Xiao FENG, Bin TONG, Jin-bo SHEN, Wei ZHAO, Jun-ge ZHI, Jian-bing SHI, and Yu-ping DONG
1,2,5-triphenylpyrrole (TPP) was firstly prepared by the Schulte-Reisch reaction of 1,4-diphenylbuta-1,3-diyne with aniline catalyzed by copper chloride. Compared to solution reaction in DMF as solvent, the bulk reaction modified in this paper not only increased the yield and reduced the reaction temperature, but also
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1482 (2009)
Effect of Ce3+ Implantation on Photoluminescence Intensity of Si Nanocrystals Embedded in Superlattices
Yu-fan DU, Li-xin YI, Shen-wei WANG, and Yang WU
In the present paper, SiO/SiO2 superlattices samples were prepared on Si substrates by electron beam evaporation.The samples were annealed in nitrogen atmosphere at high temperature subsequently.And then, Ce3+ ions with a dose of 2.0×1014 and 2.0×1015 cm-2 respectively were implanted into these samples with f
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1486 (2009)
Upconversion Luminescence Properties of ZBLAN∶Nd3+, Tm3+, Yb3+
Zhi-ping YANG, Hai-yan DU, Jia-yue SUN, and Wei WANG
The ZBLAN∶Nd3+, Tm3+, Yb3+ upconversion materials were prepared by high-temperature solid method. The concentrations of Tm3+ and Yb3+ were 0.01% and 0.3% respectively. The concentration of Nd3+ changed in the range from 0.1% to 2%. The absorption spectrum of ZBLAN∶Nd3+, Tm3+, Yb3+ in all samples from 300 to 1 000 nm wa
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1489 (2009)
Stray Light and Bandpass Correction in the Spectral Measurement for Light Emitting Diodes
Hai-ping SHEN, Jian-gen PAN, Hua-jun FENG, and Zhi-hai XU
The present paper introduces the stray light and bandpass correction methods for spectrometers. The line spread function of spectrometer is characterized by a He-Ne laser. Assuming that the spectrometer is a wavelength invariable system, the stray light distribution matrix is constructed by the derived line spread func
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1493 (2009)
Study on Aconitum Kusnezoffii Reichb. and Its Processed Products by 2D-IR Correlation Spectroscopy
Chao-lu WANG, Jian-min WEN, Ting CHENG, Ke-wei JIANG, Su-qin SUN, and Ya TU
2D-IR correlation spectroscopy and dynamic spectra tracked during mutative temperature process were used to do the research. The FTIR spectra of aconitum kusnezoffii Reichb. and its processed products are similar, the result by second derivative spectrum was analyzed, the absorption peaks at 1 745, 1 468 and 1 337 cm-1
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1498 (2009)
Identification of Cistanche Deserticola from Boschniakla Rossica and Cynomorium Songaricum Using FTIR and Two-Dimensional Correlation IR Spectroscopy
Jun CHEN, Su-qin SUN, Rong XU, You-gang LIU, Jing YU, Tong-ning LIU, and Jian-qiang LI
In the present paper, Fourier transform infrared spectroscopy (FTIR) combined with two-dimensional correlation spectroscopy (2D-IR) was used for the identification of Cistanche deserticola from its adulterants, Boschniakla rossica and Cynomorium songaricum. The results showed that these IR spectra showed their differen
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1502 (2009)
Effects of Different Managements on Soil Humic Acid Structural Features in Chestnut Soil on Typical Leymus Chinensis Steppe, Inner Mongolia, China
Guang-jun LI, Yi-zhong LV, and Bao-guo LI
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1508 (2009)
Research on Systematic Evolution of Ginkgo Biloba Based on Chemical Composition of Wood
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1512 (2009)
Temperature Compensation for Calibration Model of Apple Fruit Soluble Solids Contents by Near Infrared Reflectance
Jia-hua WANG, Lu PAN, Peng-fei LI, and Dong-hai HAN
The detection precision of soluble solids in apple fruit by near infrared reflectance (NIR) spectroscopy was affected by sample temperature. The NIR technique needs to be able to compensate for fruit temperature fluctuations. In the present study, it was observed that the sample temperature (2-42 ℃) affects the NIR spe
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1517 (2009)
Study on Analysis of Copy Paper by Fourier Transform Infrared Spectroscopy
Ji-min LI, Yan-ji WANG, Jing-han WANG, Li-juan YAO, and Biao ZHANG
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1521 (2009)
Structural Characteristics of Humic Acids from a Long-Term Petroleum Contaminated Soil
Jin-jing ZHANG, Sen DOU, Xiu-hong XIE, Li-na TANG, Xiang-yun SONG, and Xiao-jing QU
Petroleum contamination in soil decreases with the increase in the distance of soil to the drilling well. Accordingly, an abandoned petroleum well which had been exploited for about twenty years in Songyuan city of Jilin Province, China, was selected to investigate the structural characteristics of soil humic acids (HA
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1531 (2009)
Study on Vis/NIR Spectra Detecting System for Watermelons and Quality Predicting in Motion
Hai-qing TIAN, Yi-bin YING, Hui-rong XU, Hui-shan LU, and Li-juan XIE
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1536 (2009)
Identification of Varieties of Cashmere by Vis/NIR Spectroscopy Technology Based on PCA-SVM
Gui-fang WU, and Yong HE
One mixed algorithm was presented to discriminate cashmere varieties with principal component analysis (PCA) and support vector machine (SVM). Cashmere fiber has such characteristics as threadlike, softness, glossiness and high tensile strength. The quality characters and economic value of each breed of cashmere are ve
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1541 (2009)
FTIR Analysis of Products Derived from Wood Liquefaction with 1-Octanol
Xian-wu ZOU, Zhi YANG, and Te-fu QIN
Solvolysis is one of the important processes of biomass liquefaction. To produce superior quality liquid biofuel from biomass under mild conditions, it is essential to exploit novel reactive liquid solvent. Furthermore, the evaluation of liquefaction efficiency is carried out mainly by the means of analysis of the prod
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1545 (2009)
Application of Wavelet Packet Analysis in Estimating Soil Parameters Based on NIR Spectra
Li-hua ZHENG, Min-zan LI, Luan PAN, Jian-ying SUN, and Ning TANG
Using the method of wavelet analysis, the NIR spectra of soil samples were decomposed and reconstructed, and higher precision PLS models were established to estimate soil parameter (TN, SOM). One hundred fifty soil samples were collected from a winter wheat field and the NIR spectra of all samples were measured. Firstl
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1549 (2009)
Application of Probabilistic Neural Networks Method to Gastric Endoscope Samples Diagnosis Based on FTIR Spectroscopy
Qing-bo LI, Xiang LI, Guang-jun ZHANG, Yi-zhuang XU, Jin-guang WU, and Xue-jun SUN
In the present paper, probabilistic neural network method was applied to the classification of gastric endoscope samples based on FTIR spectroscopy for higher discrimination correctness than the conventional linear discriminant analysis algorithm. The probabilistic neural network (PNN) is a kind of radial basis network
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1553 (2009)
Temperature Dependence of Additional Peaks Characteristics of Single Mode Silica Fiber Stimulated Raman Scattering
Zhi-wei MEN, Xiu-ping SUN, Shu-qin GAO, Xi-he ZHANG, Zhao-min WANG, and Zuo-wei LI
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1566 (2009)
Discovery of Anatase in Atmospheric Inhalable Particles and Its Significance
Nan ZHENG, and He-jin WANG
Laser Raman microprobe (LRM) is a reliable technique for phase identification to analyze the molecular composition and microstructure on 1 μm2 area of samples, and therefore, it is well-suited for identifying the mineral phases of single fine particles. In the present paper, we utilized LRM to identify the mineral phas
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1570 (2009)
Study of the Relationship between Apoptosis and Intracellular pH in Single Living Cells Using a Three-Channel Real-Time Fluorescence Imaging Method
Dan-ying LIN, Xiao-chen LIU, and Wan-yun MA
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1581 (2009)
[in Chinese]
[in Chinese], and [in Chinese]
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1590 (2009)
Study on the Modeling of Hyperspectral Polarized Reflection of Clove Lamina with Chlorophyll Content
Yang HAN, Yun-sheng ZHAO, Li-li ZHANG, and Yun-feng LV
In the present study, the authors detected clove laminas in different states with multi-angle hyperspectral polarized reflections and measured their chlorophyll content at the same time. The authors analyzed hyperspectral polarized reflections of clove laminas from various viewing zenith angles, incidence angles, the r
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1595 (2009)
Determination of DNA Using Eu-PPA as Fluorescence Probe by Time-Resolved Fluorescence
Zhen LIU, Si-ling SUN, Feng LI, and Shu-kun XU
In the Tris-HCl buffer solution, europium ion combined with pipemidic acid (PPA) to form a Eu-PPA complex. The fluorescence intensity was dramatically enhanced when herring sperm DNA was added in the Eu-PPA system. Furthermore, the fluorescence intensity was increased linearly with the concentrations of added DNA withi
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1599 (2009)
Spectroscopic Investigation on the Interaction of Protocatechuic Acid and Veratric Acid with Biomacromolecules
Mei LONG, and Meng-xia XIE
Protocatechuic acid (P) and veratric acid (V) are phenolic acidic compounds and have a wide biological and pharmaceutical activities, and their interaction with biomacromolecule has been a hot topic. The interaction mechanism of P and V with fsDNA was investigated by fluorescence and UV absorption spectroscopic methods
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1603 (2009)
SPAD Prediction of Leave Based on Reflection Spectroscopy
Hai-qing YANG, Jian-song YAO, and Yong HE
Handheld SPAD meter is often used to measure chlorophyll content of plant and nitrogen level for some species. For plant production automation, however, it loses its popularity due to its point-by-point checking. The authors need to monitor the growing conditions of plant remotely, instantly and nondestructively. In th
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1607 (2009)
Review of Digital Ground Object Spectral Library
Xiao-hu ZHOU, and Ding-wu ZHOU
A higher spectral resolution is the main direction of developing remote sensing technology, and it is quite important to set up the digital ground object reflectance spectral database library, one of fundamental research fields in remote sensing application. Remote sensing application has been increasingly relying on g
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1616 (2009)
Fabrication and Photocatalytic Activity of Pt-Inserted Titania Nanotubes
Hai-long LI, Wu-lin LUO, Wen-yu TIAN, Tao CHEN, Chun LI, Mao SUN, Di ZHU, Ran-ran LIU, Yu-liang ZHAO, and Chun-li LIU
Titania nanotubes (TNTs) were synthesized by hydrothermal treatment of rutile-phase TiO2 nanoparticals in NaOH solution at 110 ℃ for 24 hours. After drying in aceton for 36 h, the TNTs were under vacuum drying for 24 h at room temperature. The Pt-inserted titania nanotubes (Pt/TNTs) were obtained by filling H2PtCl6 eth
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1623 (2009)
Detecting Land Use Change Using PCA-Enhancement and Multi-Source Classifier from SPOT Images
Jin-song DENG, Jun LI, and Ke WANG
Concomitant with the rapid global urbanization process, land use change detection has been the focus and “hot spot” of global change research all the time. In the present study, the rigorous orthorectification was first applied to the SPOT-5 data to guarantee precise geometric correction and image registration. Afterwa
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1627 (2009)
Time Resolved UV-Vis Absorption Spectra of Quercetin Reacting with Various Concentrations of Sodium Hydroxide
Li-jun YANG, Ping LI, Yan-jun GAO, Hui-feng LI, Da-cheng WU, and Rui-xia LI
A real time investigation of chemical reaction process of quercetin with various concentrations of sodium hydroxide was performed by using an intensified spectroscopic detector ICCD. The time resolved UV-Vis absorption spectra of 5×10-5 mol·L-1 quercetin respectively reacting with sodium hydroxide at concentr
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1632 (2009)
Application of Hyperspectral Remote Sensing in Research on Ecological Boundary in North Farming-Pasturing Transition in China
Hong-mei WANG, Kun WANG, and Ying-zhong XIE
Studies of ecological boundaries are important and have become a rapidly evolving part of contemporary ecology. The ecotones are dynamic and play several functional roles in ecosystem dynamics, and the changes in their locations can be used as an indicator of environment changes, and for these reasons, ecotones have re
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1636 (2009)
A New Immuno-Nanosliver Resonance Scattering Spectral Probe for Assay of IgG
Xiao-ling WEI, Yu-lan ZHANG, and Zhi-liang JIANG
Using tri-sodium citrate as reducer, stable silver nanoparticles the size of about 20 nm were prepared by the microwave high pressure procedure with simplicity and rapidity. At pH 9.0, sliver nanoparticle was used to label goat anti-human IgG (GIgG) to obtain an immuno-nanosilver resonance scattering spectral probe (Ag
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1640 (2009)
Determination of the Daily Changes Curve of Nitrogen Oxides in the Atmosphere by Digital Imaging Colorimetry Method
Chuan-xiao YANG, Xiang-ying SUN, and Bin LIU
From the digital images of the red complex which resulted in the interaction of nitrite with N-(1-naphthyl) ethylenediamine dihydrochloride and P-Aminobenzene sulfonic acid, it could be seen that the solution colors obviously increased with increasing the concentration of nitrite ion. The JPEG format of the digital ima
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1643 (2009)
Difference Expressed Protein Study on Unstable Angina Blood-Stasis Syndrome by Fluorescence Labelling Method
Hui-hui ZHAO, Na HOU, and Wei WANG
Fluorescence labelling method was used seeking differentially expressed plasma proteins of unstable angina blood-stasis syndrome. Three fluorescence labelling dyes (Cy2, Cy3 and Cy5) were used on two classes of species (plasma of 12 patients with unstable angina blood-stasis syndrome and 12 healthy volunteers) Two dime
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1647 (2009)
Research on the Autofluorescence Spectroscopy of Heart Tissues
Zheng-hong XU, Zhen-xi ZHANG, Jing WANG, Zheng LI, and Xue-liang LIU
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1651 (2009)
Enteromorpha Prolifera Underwater Spectral Research Based on Simulation of Radiation Transmission
Wen-jing ZHAO, Jie ZHANG, Ting-wei CUI, Yan-ling HAO, and Ling SUN
The accumulation of Enteromorpha prolifera in huge amount in the Yellow sea in June, 2008 draws the attention from all over the world. It is an urgent requirement to monitor the wide range of Enteromorpha prolifera distribution by remote sensing. As to the Enteromorpha prolifera floating on the sea surface, effective m
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1656 (2009)
Degradation of Organic Contaminant in Landfill Leachate by Photo-Fenton Process
Huai-li ZHENG, Yun-xia PAN, Dan-dan LI, and You-quan WU
In the present work, the treatment of landfill leachate was studied by photo-Fenton process. All photocatalytic experiments were carried out under similar conditions on July or August sunny days between 12 a.m. and 14 p.m. in Chongqing based on the change in solar light intensity with time. The effect of operating cond
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1661 (2009)
Spectroscopic Investigation of the Poly[(Silylene)acetylene silanes]
Mei YAN, Xin CHEN, Yong-xia TAN, Zhi-jie ZHANG, and Ze-min XIE
In the present paper, a series of novel conjugated polymers, poly[(silylene)acetylene silanes] with different structure, were prepared, and the luminescence performance of the poly[(silylene)acetylene silanes] with different substituents were investigated by the fluorescence and UV absorption spectroscopic approaches.
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1665 (2009)
LED Illuminant-Based Detection of Trace NO2 Gases
Xiu-ping SUN, Xi-he ZHANG, Da-cheng WANG, Ke-cheng FENG, Yan-xiang NA, Jian-guo LIU, and Wen-qing LIU
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1672 (2009)
Determination of As in Industrial Wastewater by Laser-Induced Breakdown Spectroscopy
Zhao-xiang LIN, Liang CHANG, Jie LI, and Lin-mei LIU
The wastewater from industrial smelting process contains heavy metals such as arsenic (As) that produce serious environmental pollution and cause actual harm to the health of people. It is necessary to control the pollution at the source and achieve a real-time and online monitoring. The laser-induced breakdown spectro
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1675 (2009)
Quantitative Analysis of the Concentration of Br-Doping in Micro-Shell Coating with XRF
Xiao-jun MA, Dang-zhong GAO, Jian-hong FENG, Yu-hong LI, Cheng-gang YE, and Yuan-qiong LIU
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1678 (2009)
Comparison of Four Kinds of Measurement Techniques for Wood Microfibril Angle
Yan-hui HUANG, Ben-hua FEI, and Rong-jun ZHAO
X-ray diffraction technique, pit aperture observing technique, polarized light microscope technique and near infrared spectrum technique were used separately to test the wood microfibril angle of Chinese fir, and the results were as follows: For the identical tree of Chinese fir, the average microfibril angle obtained
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1682 (2009)
Determination of Trace Elements in Electrical Absorption Prospecting Polyform Sample by Inductively Coupled Plasma Mass Spectrometry
Yi-hua SHI, Zhong-ping YANG, Jian-hui HUANG, Qi-ming ZHOU, and Chuan-xin XIONG
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1687 (2009)
The Zonal Characterization of Elemental Concentrations in Brown Rice of Core Collection for Rice Landrace in Yunnan Province by ICP-AES
Ya-wen ZENG, Lu-xiang WANG, Xiao-ying PU, Juan DU, Shu-ming YANG, Jia-fu LIU, and Li-mei TAI
In the present paper, the contents of 8 elements in brown rice of 789 accessions core collection for rice landrace from 16 prefectures of five rice regions in Yunnan province were determined by ICP-AES technique. The method proves to be simple, rapid, highly sensitive and accurate, and can be used to determine many ele
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1691 (2009)
Content of Rare Earth Elements in Wild Hypericum Japonicum Thunb
Zhen-lin WEI, Yu-kui RUI, and Zhi-huan TIAN
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1696 (2009)
RVM Supervised Feature Extraction and Seyfert Spectra Classification
Xiang-ru LI, Zhan-yi HU, Yong-heng ZHAO, and Xiao-ming LI
With recent technological advances in wide field survey astronomy and implementation of several large-scale astronomical survey proposals (e.g. SDSS, 2dF and LAMOST), celestial spectra are becoming very abundant and rich. Therefore, research on automated classification methods based on celestial spectra has been attrac
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1702 (2009)
Comparison of Dispersion Parts of Conventional Spectrometers
Huai-dong YANG, Ke-xin CHEN, Xing-yue HUANG, Qing-sheng HE, and Guo-fan JIN
Innovation of conventional spectrometers is of actual technical and economical value. It is also an important way to accelerate the development of spectroscopic instruments. When improving a conventional spectrometer, its dispersion part is pivotal, because it is decisive to the basic performance of the spectrometer. I
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1707 (2009)
A Micro-Silicon Multi-Slit Spectrophotometer Based on MEMS Technology
Peng HAO, Yi-hui WU, Ping ZHANG, Yong-shun LIU, Ke ZHANG, and Hai-wen LI
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1713 (2009)
The Analysis of the Sampling Modulation Transfer Function and the Influence on the Gaussian Spectra
Lie-feng ZHAO, Zhi-hai* XU, Hua-jun FENG, and Qi LI
As the parameters of the photoelectric detector have important effects on the performance of the dispersive spectrometers, it is necessary to detail the discrete sampling process of the photoelectric detector array. In the present paper, the sampling model was setup, and the effects on the sampling results caused by th
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1717 (2009)
[in Chinese]
[in Chinese]
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1726 (2009)
[in Chinese]
[in Chinese]
Spectroscopy and Spectral Analysis
  • Publication Date: Sep. 21, 2021
  • Vol.29 Issue, 6 1 (2009)